HSDPA RAN14.0
Feature Parameter Description
Issue
04
Date
2013-05-10
HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2013. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.
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Website:
http://www.huawei.com
Email:
[email protected]
WCDMA RAN HSDPA
Contents
Contents 1 Introduction ................................................................................................................................1-1 1.1 Scope ............................................................................................................................................ 1-1 1.2 Intended Audience......................................................................................................................... 1-1 1.3 Change History.............................................................................................................................. 1-1
2 Overview of HSDPA ..................................................................................................................2-1 2.1 General Principles of HSDPA ........................................................................................................ 2-1 2.2 HSDPA Channels .......................................................................................................................... 2-1 2.2.1 HS-DSCH and HS-PDSCH .................................................................................................. 2-2 2.2.2 HS-SCCH ............................................................................................................................. 2-2 2.2.3 HS-DPCCH ........................................................................................................................... 2-2 2.2.4 DPCCH and DPCH/F-DPCH ................................................................................................ 2-2 2.3 Impact of HSDPA on NEs .............................................................................................................. 2-3 2.4 HSDPA Functions .......................................................................................................................... 2-4 2.4.1 HSDPA Control Plane Functions .......................................................................................... 2-4 2.4.2 HSDPA User Plane Functions .............................................................................................. 2-5
3 Control Plane .............................................................................................................................3-1 3.1 Bearer Mapping ............................................................................................................................. 3-1 3.2 Access Control .............................................................................................................................. 3-2 3.3 Mobility Management .................................................................................................................... 3-2 3.4 Channel Switching......................................................................................................................... 3-2 3.5 Load Control .................................................................................................................................. 3-5 3.6 Power Resource Management...................................................................................................... 3-5 3.7 Code Resource Management ....................................................................................................... 3-6 3.7.1 HS-SCCH Code Resource Management ............................................................................. 3-6 3.7.2 HS-PDSCH Code Resource Management........................................................................... 3-6 3.7.3 Dynamic Code Tree Reshuffling ........................................................................................... 3-8
4 User Plane ...................................................................................................................................4-1 4.1 Flow Control and Congestion Control ........................................................................................... 4-1 4.1.1 Flow Control ......................................................................................................................... 4-2 4.1.2 Congestion Control ............................................................................................................... 4-2 4.2 Impact of HSDPA on the RLC and MAC-d Entities ....................................................................... 4-3 4.2.1 Impact on the RLC Entity...................................................................................................... 4-3 4.2.2 Impact on the MAC-d Entity.................................................................................................. 4-3 4.3 MAC-hs Scheduling ...................................................................................................................... 4-3 4.3.1 Determining the Candidate Set ............................................................................................ 4-4 4.3.2 Calculating Scheduling Priorities .......................................................................................... 4-4 4.3.3 Time and HS-PDSCH Codes Multiplex ................................................................................ 4-8 4.4 HARQ ............................................................................................................................................ 4-9
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4.4.1 HARQ Retransmission Principles ......................................................................................... 4-9 4.4.2 Soft Combining During HARQ ............................................................................................ 4-10 4.4.3 Preamble and Postamble ................................................................................................... 4-10 4.5 TFRC Selection ........................................................................................................................... 4-11 4.6 HSDPA Remaining Power Appending ......................................................................................... 4-12 4.7 CQI Adjustment Based on Dynamic BLER Target ...................................................................... 4-13 4.8 BLER Optimization for HSDPA Burst Services ........................................................................... 4-14 4.9 Modulation Scheme .................................................................................................................... 4-14
5 QoS Management and Management over Differentiated Services ..............................5-1 5.1 QoS Management ......................................................................................................................... 5-1 5.2 Diff-Serv Management .................................................................................................................. 5-2
6 Related Features .......................................................................................................................6-1 6.1 WRFD-010610 HSDPA Introduction Package .............................................................................. 6-1 6.1.1 Prerequisite Features ........................................................................................................... 6-1 6.1.2 Mutually Exclusive Features ................................................................................................. 6-1 6.1.3 Impacted Features ................................................................................................................ 6-1 6.2 WRFD-010653 96 HSDPA Users per Cell .................................................................................... 6-1 6.2.1 Prerequisite Features ........................................................................................................... 6-1 6.2.2 Mutually Exclusive Features ................................................................................................. 6-1 6.2.3 Impacted Features ................................................................................................................ 6-1 6.3 WRFD-010654 128 HSDPA Users per Cell .................................................................................. 6-1 6.3.1 Prerequisite Features ........................................................................................................... 6-1 6.3.2 Mutually Exclusive Features ................................................................................................. 6-1 6.3.3 Impacted Feature ................................................................................................................. 6-1 6.4 WRFD-030010 CQI Adjustment Based on Dynamic BLER Target ............................................... 6-2 6.4.1 Prerequisite Features ........................................................................................................... 6-2 6.4.2 Mutually Exclusive Features ................................................................................................. 6-2 6.4.3 Impacted Feature ................................................................................................................. 6-2 6.5 WRFD-140221 HSDPA Scheduling based on UE Location .......................................................... 6-2 6.5.1 Prerequisite Features ........................................................................................................... 6-2 6.5.2 Mutually Exclusive Features ................................................................................................. 6-2 6.5.3 Impacted Feature ................................................................................................................. 6-2
7 Network Impact..........................................................................................................................7-1 7.1 WRFD-010610 HSDPA Introduction Package .............................................................................. 7-1 7.1.1 System Capacity ................................................................................................................... 7-1 7.1.2 Network Performance ........................................................................................................... 7-1 7.2 WRFD-010653 96 HSDPA Users per Cell .................................................................................... 7-1 7.2.1 System Capacity ................................................................................................................... 7-1 7.2.2 Network Performance ........................................................................................................... 7-1 7.3 WRFD-010654 128 HSDPA Users per Cell .................................................................................. 7-1 7.3.1 System Capacity ................................................................................................................... 7-1 Issue 04 (2013-05-10)
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7.3.2 Network Performance ........................................................................................................... 7-1 7.4 WRFD-030010 CQI Adjustment Based on Dynamic BLER Target ............................................... 7-1 7.4.1 System Capacity ................................................................................................................... 7-1 7.4.2 Network Performance ........................................................................................................... 7-2 7.5 WRFD-140221 HSDPA Scheduling based on UE Location .......................................................... 7-2 7.5.1 System Capacity ................................................................................................................... 7-2 7.5.2 Network Performance ........................................................................................................... 7-2
8 Engineering Guidelines ...........................................................................................................8-1 8.1 WRFD-010610 HSDPA Introduction Package .............................................................................. 8-1 8.1.1 When to Use HSDPA Introduction Package ......................................................................... 8-1 8.1.2 Information to Be Collected .................................................................................................. 8-1 8.1.3 Feature Deployment ............................................................................................................. 8-1 8.1.4 Performance Monitoring ....................................................................................................... 8-2 8.2 WRFD-01061001 15 Codes per Cell ............................................................................................ 8-3 8.2.1 When to Use 15 Codes per Cell ........................................................................................... 8-3 8.2.2 Information to Be Collected .................................................................................................. 8-3 8.2.3 Feature Deployment ............................................................................................................. 8-3 8.3 WRFD-01061018 Time and HS-PDSCH Codes Multiplex ............................................................ 8-5 8.3.1 When to Use Time and HS-PDSCH Codes Multiplex .......................................................... 8-5 8.3.2 Information to Be Collected .................................................................................................. 8-5 8.3.3 Feature Deployment ............................................................................................................. 8-5 8.4 WRFD-01061009 HSDPA H-ARQ & Scheduling (MAX C/I, RR, and PF) .................................... 8-6 8.4.1 When to Use HSDPA H-ARQ & Scheduling (MAX C/I, RR, and PF .................................... 8-6 8.4.2 Information to Be Collected .................................................................................................. 8-6 8.4.3 Feature Deployment ............................................................................................................. 8-6 8.5 WRFD-01061005 HSDPA Static Code Allocation and RNC-Controlled Dynamic Code Allocation ............................................................................................................................................................. 8-7 8.5.1 When to Use HSDPA Static Code Allocation and RNC-Controlled Dynamic Code Allocation ....................................................................................................................................................... 8-7 8.5.2 Information to Be Collected .................................................................................................. 8-7 8.5.3 Feature Deployment ............................................................................................................. 8-7 8.6 WRFD-01061010 HSDPA Flow Control ........................................................................................ 8-8 8.6.1 When to Use HSDPA Flow Control ...................................................................................... 8-8 8.6.2 Information to Be Collected .................................................................................................. 8-8 8.6.3 Feature Deployment ............................................................................................................. 8-8 8.7 WRFD-01061006 HSDPA Mobility Management ........................................................................ 8-10 8.7.1 When to Use HSDPA Mobility Management ...................................................................... 8-10 8.7.2 Information to Be Collected ................................................................................................ 8-10 8.7.3 Feature Deployment ........................................................................................................... 8-10 8.8 WRFD-01061002 HSDPA UE Category 1 to 28 ......................................................................... 8-11 8.8.1 When to Use HSDPA UE Category 1 to 28 ........................................................................ 8-11 8.8.2 Information to Be Collected ................................................................................................ 8-11
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8.8.3 Feature Deployment ........................................................................................................... 8-11 8.9 WRFD-010629 DL 16QAM Modulation ....................................................................................... 8-11 8.9.1 When to Use DL 16QAM Modulation ................................................................................. 8-11 8.9.2 Information to Be Collected ................................................................................................ 8-11 8.9.3 Feature Deployment ........................................................................................................... 8-11 8.10 WRFD-010631 Dynamic Code Allocation Based on NodeB ..................................................... 8-13 8.10.1 When to Use Dynamic Code Allocation Based on NodeB ............................................... 8-13 8.10.2 Information to Be Collected .............................................................................................. 8-13 8.10.3 Feature Deployment ......................................................................................................... 8-13 8.11 WRFD-010611 HSDPA Enhanced Package ............................................................................. 8-16 8.11.1 When to Use HSDPA Enhanced Package ........................................................................ 8-16 8.11.2 Information to Be Collected .............................................................................................. 8-16 8.11.3 Feature Deployment ......................................................................................................... 8-16 8.12 WRFD-01061103 Scheduling based on EPF and GBR ............................................................ 8-16 8.12.1 Feature Deployment ......................................................................................................... 8-16 8.13 WRFD-010653 96 HSDPA Users per Cell ................................................................................ 8-17 8.13.1 When to Use 96 HSDPA Users per Cell ........................................................................... 8-17 8.13.2 Information to Be Collected .............................................................................................. 8-17 8.13.3 Feature Deployment ......................................................................................................... 8-17 8.14 WRFD-010654 128 HSDPA Users per Cell .............................................................................. 8-19 8.14.1 When to Use 128 HSDPA Users per Cell ......................................................................... 8-19 8.14.2 Information to Be Collected .............................................................................................. 8-19 8.14.3 Feature Deployment ......................................................................................................... 8-19 8.15 WRFD-030010 CQI Adjustment Based on Dynamic BLER Target ........................................... 8-21 8.15.1 When to Use CQI Adjustment Based on Dynamic BLER Target ...................................... 8-21 8.15.2 Information to Be Collected .............................................................................................. 8-21 8.15.3 Feature Deployment ......................................................................................................... 8-21 8.15.4 Feature Monitoring ........................................................................................................... 8-22 8.16 WRFD-140221 HSDPA Scheduling based on UE Location ...................................................... 8-22 8.16.1 When to Use HSDPA Scheduling based on UE Location ................................................ 8-22 8.16.2 Feature Deployment ......................................................................................................... 8-22 8.16.3 Performance Optimization ................................................................................................ 8-24 8.17 HSDPA Remaining Power Appending ....................................................................................... 8-24 8.17.1 When to Use HSDPA Remaining Power Appending ........................................................ 8-24 8.17.2 Information to Be Collected .............................................................................................. 8-25 8.17.3 Feature Deployment ......................................................................................................... 8-25 8.17.4 Performance Optimization ................................................................................................ 8-26 8.18 BLER Optimization for HSDPA Burst Services ......................................................................... 8-26 8.18.1 When to Use BLER Optimization for HSDPA Burst Services ........................................... 8-26 8.18.2 Information to Be Collected .............................................................................................. 8-26 8.18.3 Feature Deployment ......................................................................................................... 8-26
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9 Parameters..................................................................................................................................9-1 10 Counters..................................................................................................................................10-1 11 Glossary ..................................................................................................................................11-1 12 Reference Documents .........................................................................................................12-1
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1 Introduction
1 Introduction 1.1 Scope This document describes the HSDPA functional area. It provides an overview of the main functions and goes into details regarding HSDPA control and user plane functions.
1.2 Intended Audience This document is intended for:
Personnel who are familiar with WCDMA basics
Personnel who need to understand HSDPA
Personnel who work with Huawei products
1.3 Change History This section provides information on the changes in different document versions. There are two types of changes, which are defined as follows:
Feature change: refers to the change in the HSDPA feature.
Editorial change: refers to the change in wording or the addition of the information that was not described in the earlier version.
Document Issues The document issues are as follows:
04 (2013-05-10)
03 (2012-11-30)
02 (2012-07-20)
01 (2012-04-30)
Draft A (2012-02-15)
04 (2013-05-10) This is the document for the fourth commercial release of RAN14.0. Compared with issue 03 (2012-11-30) of RAN14.0, this issue incorporates the changes described in the following table. Change Type
Change Description
Parameter Change
Feature change
None
None
Editorial change
Added the description about related features and network impact of the following features and optimized the description about engineering guidelines:
None
WRFD-010610 HSDPA Introduction Package
WRFD-010653 96 HSDPA Users per Cell
WRFD-010654 128 HSDPA Users per Cell
WRFD-030010 CQI Adjustment Based on Dynamic
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BLER Target
WRFD-140221 HSDPA Scheduling Based on UE Location
For details, see chapters as follows:
6 Related Features
7 Network Impact
8 Engineering Guidelines
03 (2012-11-30) This is the document for the third commercial release of RAN14.0. Compared with issue 02 (2012-07-20) of RAN14.0, this issue incorporates the changes described in the following table. Change Type
Change Description
Feature change
Added the HSDPA remaining power appending algorithm. For details, see section 4.6 "HSDPA Remaining Power Appending."
Added the BLER Optimization for HSDPA Burst Services function and the engineering guidelines about this function. For details, see section 4.8 "BLER Optimization for HSDPA Burst Services" and 8.18 "BLER Optimization for HSDPA Burst Services."
Editorial change
Optimized the description to increase the readability.
Parameter Change None
None
02 (2012-07-20) This is the document for the second commercial release of RAN14.0. Compared with issue 01 (2012-04-30) of RAN14.0, this issue incorporates the changes described in the following table. Change Type
Change Description
Feature change None
Parameter Change None
Editorial change Added the procedures for deploying features used in this None document. For details, see 8 "Engineering Guidelines."
01 (2012-04-30) This is the document for the first commercial release of RAN14.0. Compared with issue Draft A (2012-02-15) of RAN14.0, this issue incorporates the changes described in the following table.
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Change Type
1 Introduction
Change Description
Parameter Change
Feature change None
None
Editorial change The description about performance monitoring of the feature HSDPA scheduling based on UE location is modified.
None
Draft A (2012-02-15) This is the first draft of the document for RAN14.0. Compared with 03 (2011-10-30) of RAN13.0, this issue incorporates the following changes: Change Type
Change Description
Feature change
The EPF_LOC algorithm (WRFD-140221 HSDPA The added parameter is Scheduling based on UE Location) is added. For details, LOCWEIGHT. see 4.3 "MAC-hs Scheduling. "
Editorial change The description is optimized.
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Parameter Change
None
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2 Overview of HSDPA
2 Overview of HSDPA 2.1 General Principles of HSDPA To meet the rapidly growing demands for data services on the mobile network, 3GPP Release 5 introduced HSDPA in 2005. HSDPA improves the downlink capacity, increases the user data rate greatly, and reduces the transmission delay on the WCDMA network. The characteristics of HSDPA are as follows: Fast scheduling
Fast scheduling introduced into the NodeB determines the UEs for data transmission in each TTI (2 ms) and dynamically allocates resources to these UEs. It improves the usage of system resources and increases the system capacity. For details about how Huawei RAN implements fast scheduling, see section4.3 "MAC-hs Scheduling."
Fast HARQ
Fast hybrid automatic repeat request (HARQ) is used to rapidly request the retransmission of erroneously received data. Specifically, when the UE detects an erroneous data transmission, it saves the received data and requests the NodeB to retransmit the original data at the physical layer. Before decoding, the UE performs soft combining of the saved data and the retransmitted data. The combining fully uses the data transmitted each time and therefore increases the decoding success rate. In addition, the retransmission delay at the physical layer is reduced greatly, compared with that at the RLC layer. For details about how Huawei RAN implements fast HARQ, see section 4.4 "HARQ."
Fast AMC
To compensate for channel variations, the DCH performs power control. To achieve this goal, HSDPA also performs fast adaptive modulation and coding (AMC), that is, adjusts the modulation scheme and coding rate in each TTI. AMC is based on the channel quality indicator (CQI) reported by the UE, and its purpose is to select an appropriate transmission rate to meet channel conditions. When the channel conditions are good, 16QAM or 64QAM can be used to provide higher transmission rates. When the channel conditions are poor, QPSK can be used to ensure the transmission quality. For details about how Huawei RAN implements fast AMC, see section 4.5 "TFRC Selection."
The MAC-hs, a new MAC sublayer, is introduced into the UE and NodeB to support HSDPA.
2.2 HSDPA Channels To support the HSDPA technologies, 3GPP defines one transport channel (HS-DSCH) and three physical channels (HS-PDSCH, HS-SCCH, and HS-DPCCH). Figure 2-1 shows the physical channels of HSDPA in the shaded area.
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Figure 2-1 Physical channels of HSDPA
2.2.1 HS-DSCH and HS-PDSCH HS-DSCH is a high-speed downlink shared channel. Its TTI is fixed to 2 ms. It may be mapped onto one or more HS-PDSCHs. HS-PDSCH is a high-speed physical downlink shared channel. Its spreading factor is fixed to 16. According to 3GPP TS 25.433, a maximum of 15 HS-PDSCHs can be used for transmission at the same time. The number of HS-PDSCHs per cell is configurable. The use of 2 ms TTI reduces the round trip time (RTT) on the Uu interface and, together with AMC, improves the tracking of channel variations. In addition, the use of 2 ms TTI enables fast scheduling and resource allocation and therefore improves the usage of transmission resources. In each TTI, HSDPA assigns the HS-PDSCHs onto which the HS-DSCH maps. More HS-PDSCHs can provide higher transmission rates. Unlike the DCH, the HS-DSCH cannot support soft handover. The reason is that this type of handover requires different cells to use the same radio resource for sending the same data to the UE, but the scheduling function can be performed only within the cell.
2.2.2 HS-SCCH HS-SCCH is a high-speed shared control channel. It carries the control information related to the HS-PDSCH. The control information includes the UE identity, HARQ-related information, and information about transport format and resource combination (TFRC). For each transmission of the HS-DSCH, one HS-SCCH is required to carry the related control information. One cell can be configured with several HS-SCCHs. The number of HS-SCCHs determines the maximum number of UEs that can be scheduled simultaneously in each TTI.
2.2.3 HS-DPCCH HS-DPCCH is a high speed dedicated physical control channel. In the uplink, each HSDPA UE must be configured with an HS-DPCCH. This channel is mainly used by the UE to report the CQI and whether a transport block is correctly received. The information about the transport block is used for fast retransmission at the physical layer. The CQI is used for AMC and scheduling to allocate Uu resources.
2.2.4 DPCCH and DPCH/F-DPCH DPCCH is a dedicated physical control channel in the uplink. DPCH is a dedicated physical channel in the downlink. F-DPCH is a fractional dedicated physical channel in the downlink.
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The HSDPA UE must be configured with dedicated physical control channels in both the uplink and the downlink. The uplink DPCCH is used for closed-loop power control by working with the DPCH or F-DPCH. In addition, the uplink DPCCH power is used as a reference for the HS-DPCCH power. The downlink DPCH is used for inner-loop power control and as a reference for the HS-PDSCH power. Like the downlink DPCH, the F-DPCH is also used for inner-loop power control. The difference is that each UE must have a downlink DPCH (SF256) whereas 10 UEs can share an F-DPCH (SF256) to save downlink channel codes.
2.3 Impact of HSDPA on NEs HSDPA has the following impacts on the RNC, NodeB, and UE. On the control plane of the network side, the RNC processes the signaling about HSDPA cell configuration, HS-DSCH related channel configuration, and mobility management. On the user plane of the network side, the RLC layer and MAC-d of the RNC are unchanged. At the NodeB, the MAC-hs is added to implement HSDPA scheduling, Uu resource allocation, AMC, and Iub flow control. The MAC-hs implements these management functions in a short time. Therefore, it reduces both unnecessary delays and processing complexity caused by Iub message exchange. On the UE side, the MAC-hs is added between the MAC-d and the physical layer for data reception. To support HSDPA (without considering HSPA evolution), 3GPP defines 12 UE categories. These UEs support different peak rates at the physical layer, ranging from 912 kbit/s to 14 Mbit/s. The UE of category 10 supports the highest rate. The UE of category 11 or 12 supports only the QPSK mode. For details, see 3GPP TS 25.306. Huawei RAN supports all the UE categories. Table 2-1 lists the capabilities of HSDPA UEs of different categories. Table 2-1 Capabilities of HSDPA UEs of different categories UE Category
Maximum Number of HS-DSCH Codes
Minimum TTI
Maximum Number of Data Blocks
Maximum Data Rate (Mbit/s)
1
5
3
7298
1.2
2
5
3
7298
1.2
3
5
2
7298
1.8
4
5
2
7298
1.8
5
5
1
7298
3.6
6
5
1
7298
3.6
7
10
1
14411
7.2
8
10
1
14411
7.2
9
15
1
20251
10.2
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10
15
1
27952
14.4
11
5
2
3630
0.9
12
5
1
3630
1.8
2.4 HSDPA Functions HSDPA functions are implemented on the HSDPA control plane and user plane.
2.4.1 HSDPA Control Plane Functions The control plane is responsible for setting up and maintaining HS-DSCH connections and managing cell resources. Figure 2-2 shows the HSDPA control plane functions based on the service connection setup and maintenance procedure. Figure 2-2 HSDPA control plane functions
The HSDPA control plane functions are described as follows:
Bearer mapping The bearer mapping is used by the network side to configure the RAB during the setup of a service connection in the cell. The network side then configures bearer channels for the UE based on the requested service type, service rate, UE capability, and cell capability. For details, see section 3.1 "Bearer Mapping."
Access control
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Access control, a sub-function of load control, checks whether the current resources of the cell are sufficient for the service connection setup. If the resources are insufficient, intelligent access control is triggered. If the resources are sufficient, the service connection can be set up. For details, see section 3.2 "Access Control."
Mobility management For the established HS-DSCH connection, mobility management decides whether to switch it to another cell for providing better services, based on the channel quality of the UE. For details, see section 3.3 "Mobility Management."
Channel switching Channel switching is responsible for switching the transport channel among the HS-DSCH, DCH, and FACH based on the requirements of mobility management or load control. For details, see section 3.4 "Channel Switching."
Load control When the cell load increases, the load control function adjusts the resources configured for the established radio connections to avoid cell overload. For details, see section 3.5 "Load Control."
Resource management Resource management coordinates the power resource between the HS-DSCH and the DCH and the code resource between the HS-SCCH and the HS-PDSCH. The downlink power and codes are the bottleneck resources of the cell. Resource management can increase the HSDPA capacity. Power resource management reserves power for channels of different types and allocates power for them. For details, see section 3.6 "Power Resource Management." Code resource management allocates and reserves code resources for channels of different types. In addition, it collects and reshuffles idle code resources. For details, see section 3.7 "Code Resource Management."
2.4.2 HSDPA User Plane Functions After the service is set up, the user plane is responsible for implementing data transmission. Figure 2-3 shows the HSDPA user plane functions based on the data processing procedure. Figure 2-3 HSDPA user plane functions
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The service data is passed to the RLC layer and MAC-d of the RNC for processing and encapsulation. Then, the MAC-d PDU is formed and passed through the Iub/Iur interface to the NodeB/RNC. To avoid congestion, the flow control and congestion control functions control the traffic on the Iub/Iur interface through the HS-DSCH frame protocol (3GPP TS 25.435). After the MAC-d PDU is received by the NodeB, it is passed through the MAC-hs to the physical layer and then sent out through the Uu interface. The MAC-hs provides MAC-hs scheduling, TFRC selection, and HARQ. MAC-hs scheduling determines the HSDPA users in the cell for data transmission. TFRC selection determines the transmission rates and Uu resources to be allocated to the HSDPA UEs. HARQ is used to implement the hybrid automatic repeat request function.
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3 Control Plane
3 Control Plane This chapter consists of the following sections:
Bearer Mapping
Access Control
Mobility Management
Channel Switching
Load Control
Power Resource Management
Code Resource Management
3.1 Bearer Mapping The HS-DSCH can carry services of multiple types and service combinations, as listed in Table 3-1. Table 3-1 Bearer mapping CN Domain
Service Type
Can Be Carried on HS-DSCH?
Optional Feature?
-
Signaling (SRB)
Yes
Yes Feature name: SRB over HSDPA
CS
Voice
Yes
Yes Feature name: CS Voice over HSPA/HSPA+
PS
Videophone
No
No
Streaming
No
No
Conversational
Yes
Yes Feature name: VoIP over HSPA/HSPA+
Streaming
Yes
Yes Feature name: Streaming Traffic Class on HSDPA
Interactive
Yes
No
Background
Yes
No
IMS signaling
Yes
Yes Feature name: IMS Signaling over HSPA
MBMS PTP
Yes
Yes Feature name: MBMS P2P over HSDPA
During the service setup, the RNC selects appropriate channels based on the UE capability, cell capability, and service parameters to optimize the use of cell resources and ensure the QoS. Huawei RAN supports the setting of the types of RABs carried on the HS-DSCH according to service requirements. For details, see Radio Bearers Feature Parameter Description. Issue 04 (2013-05-10)
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3.2 Access Control Access control determines whether an HS-DSCH connection can be set up under the precondition that the QoS is ensured. The determination is based on the status of cell resources and the situation of Iub/Iur congestion. When the resources are insufficient, the HS-DSCH is switched to the DCH and only the DCH connection is set up. When the resources are sufficient, the DCH is switched to the HS-DSCH. The implementation of this function requires the support of channel switching. For details, see Call Admission Control Feature Parameter Description. Access control allows the HSDPA UE to access an inter-frequency neighboring cell that has the same-coverage area as the source cell. The purpose is to achieve load balance between the cells and improve HSDPA user experience. This is HSDPA directed retry decision (DRD), an optional feature. For details, see Directed Retry Decision Feature Parameter Description.
3.3 Mobility Management The DCH supports soft handover, and therefore downlink data can be concurrently sent out from all the cells in the active set in DCH transmission. In comparison, the HS-DSCH does not support soft handover, and therefore downlink data can be sent out only from the HS-DSCH serving cell and inter-cell handover has to be performed through the change of the serving cell. Therefore, HSDPA mobility management (WRFD-01061006 HSDPA Mobility Management) focuses on the change of the HS-DSCH serving cell. For the UE with the HS-DSCH service, the best cell in the active set acts as the HS-DSCH serving cell. When the best cell changes, the UE disconnects the HS-DSCH from the source cell and attempts to set up a new HS-DSCH connection with the new best cell. For details, see Handover Feature Parameter Description. By changing the HS-DSCH switching threshold, you can modify the conditions for triggering the change of the best cell. Lowering this threshold can increase both the handover frequency and the sensitivity of HS-DSCH switching to signal variations in the serving cell. Raising this threshold can reduce the handover frequency but may increase the probability of the HS-DSCH service being discontinuous or even dropping on the cell edge. For the HS-DSCH service, Huawei supports inter-cell intra-frequency handover, inter-cell inter-frequency handover, and inter-RAT handover. Mobility management may trigger the switching from the HS-DSCH to the DCH. If the UE with the HS-DSCH service cannot set up the HS-DSCH connection with the target cell, the channel switching function, together with mobility management, switches the HS-DSCH to the DCH. When the HS-DSCH connection is available, the channel switching function switches the DCH back to the HS-DSCH. When the HSDPA user returns from the DCH cell to the HSDPA cell, the DCH is set up to ensure successful handover. A certain period (ChannelRetryHoTimerLen) later after the handover, the channel switching function switches the DCH to the HS-DSCH. For details, see Handover Feature Parameter Description and section 3.4 "Channel Switching."
3.4 Channel Switching After the HS-DSCH is introduced, the UE can stay in a new state, CELL_DCH (with HS-DSCH). Therefore, there are additional transitions between CELL_DCH (with HS-DSCH) and CELL_FACH and transitions between CELL_DCH (with HS-DSCH) and CELL_DCH even when both the cell and the UE support the HS-DSCH, as shown in Figure 3-1.
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Figure 3-1 UE state transition (WRFD-01061111 HSDPA State Transition)
Table 3-2 lists new state transition and new channel switching. Table 3-2 New state transition and new channel switching New State Transition
New Channel Switching
CELL_DCH (with HS-DSCH) CELL_FACH
HS-DSCH FACH
CELL_DCH (with HS-DSCH) CELL_DCH
HS-DSCH DCH
Here, the switching between HS-DSCH and FACH can be triggered by traffic volume, which is similar to the switching between DCH and FACH. For details, see State Transition Feature Parameter Description. In addition, when the cell load is too high, load control may also trigger the switching from the HS-DSCH to the FACH to relieve congestion. For details, see Load Control Feature Parameter Description. As the HS-DSCH is introduced later, it is inevitable that some cells support the HS-DSCH but others do not. This is also the case with UEs. When a service is set up, the channel switching function selects an appropriate bearer channel based on the cell capability and UE capability to ensure the QoS while efficiently using the cell resources. When the user is moving, the channel switching function adjusts the channel type based on the UE capability to ensure service continuity while improving user experience.
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Figure 3-2 Relationships between channel switching and other functions
Triggers for switching from the HS-DSCH to the DCH are as follows:
The HS-DSCH is selected during the service setup but neither the resources of the serving cell nor the resources of the inter-frequency same-coverage neighboring cell are sufficient. In this case, the HS-DSCH is switched to the DCH. This function is achieved by means of non-periodic directed retry decision (DRD). For details about non-periodic DRD, see Directed Retry Decision Feature Parameter Description.
The HS-DSCH serving cell changes. The UE attempts to set up a new HS-DSCH connection with the new best cell. In such a case, the possible scenarios are as follows: − If
the new best cell does not support the HS-DSCH, the UE cannot set up the HS-DSCH connection. In this case, the HS-DSCH is switched to the DCH.
− If
the new best cell supports the HS-DSCH but a new HS-DSCH connection cannot be set up because the resources are insufficient, the DCH connection is set up and the HS-DSCH is switched to this DCH. For details, see Handover Feature Parameter Description.
The user moves from a cell supporting the DCH but not supporting the HS-DSCH to a cell supporting the HS-DSCH. In this case, the DCH connection is also set up because the DCH supports soft handover, which can increase the handover success rate.
In one of the cases described previously, the DCH connection is set up in a cell supporting the HS-DSCH or in an inter-frequency same-coverage neighboring cell supporting the HS-DSCH. Then, the DCH is switched to the HS-DSCH by either of the following mechanisms:
Channel switching based on timer After the DCH connection is set up, this mechanism periodically attempts to switch the DCH to the HS-DSCH. This function is achieved by means of periodic DRD. For details about periodic DRD, see Directed Retry Decision Feature Parameter Description.
Channel switching based on traffic volume When the traffic volume of the UE increases and the RNC receives an 4A event report, this mechanism attempts to switch the DCH to the HS-DSCH. For details on the 4A event report, see State Transition Feature Parameter Description.
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3.5 Load Control When the cell is congested, load control selects some users (including HSDPA users) for congestion relief. The selection is based on the integrated priority, which considers the allocation retention priority (ARP), traffic class (TC), traffic handling priority (THP), and bearer type. When the cell load is high, the basic congestion control selects some HSDPA users for handover to an inter-frequency same-coverage neighboring cell or an inter-RAT neighboring cell with lower load. When the cell load is too high, the overload congestion control selects some HSDPA BE services for the switching to a common channel or releases some HSDPA services. For details, see Load Control Feature Parameter Description.
3.6 Power Resource Management Power resource management (WRFD-01061019 HSDPA Dynamic Power Allocation) determines the transmit power of the HS-PDSCH, HS-SCCH, and HS-DPCCH. The downlink power resources of HSDPA can be dynamically allocated as follows: 1. The downlink power resources are first reserved for common physical channels and allocated to the DPCH. The remaining power resources are available for HSPA, including HSUPA and HSDPA. 2. The HSPA power resources are first allocated to the HSUPA downlink control channels, including the E-AGCH, E-RGCH, and E-HICH. The remaining power resources are available for HSDPA. 3. The HSDPA power resources are first allocated to the downlink control channel HS-SCCH. For details, see Power Control Feature Parameter Description. The remaining power resources are allocated to the traffic channel HS-PDSCH. For details on power resource allocation, see section 4.5 "TFRC Selection." Figure 3-3 shows the dynamic HSDPA power resource allocation. Figure 3-3 Dynamic HSDPA power resource allocation
Every TTI, the NodeB detects the power usage of R99 channels to determine the power available for HSPA. To reserve the power for R99 power control itself, the power margin PwrMgn needs to be set on the NodeB side. In addition, the power allocated to HSPA must not exceed the maximum permissible power HspaPower, which can be set on the RNC side.
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For details on uplink HS-DPCCH power control, see Power Control Feature Parameter Description.
3.7 Code Resource Management Code resource management allocates code resources to the HS-SCCH and HS-PDSCH. The NodeB supports HS-DSCH transmissions to multiple users in parallel in a TTI. If more than one HS-PDSCH code can be allocated by the NodeB, then code multiplexing can be used to allocate the codes to multiple users to improve resource usage and system throughput.
3.7.1 HS-SCCH Code Resource Management Each HS-SCCH uses an SF128 code. The number of HS-SCCHs determines the maximum number of HSDPA users that can be scheduled simultaneously in a TTI. Generally, the number of HS-SCCHs depends on the traffic characteristics of the cell. The default number is 4, which is specified by the parameter HsScchCodeNum on the RNC side. If the default number is used, the HS-PDSCH can use only 14 SF16 codes. To enable the HS-PDSCH to use 15 SF16 codes, you are advised to configure 2 HS-SCCHs.
3.7.2 HS-PDSCH Code Resource Management This section describes the feature WRFD-01061005 HSDPA Static Code Allocation and RNC-Controlled Dynamic Code Allocation and the feature WRFD-010631 Dynamic Code Allocation Based on NodeB. The transport channel HS-DSCH is mapped on one or several High-Speed Physical Downlink Shared Channels (HS-PDSCHs) which are simultaneously received by the UE. As indicated in 3GPP specifications, there are up to 15 HS-PDSCHs per cell with the spreading factor fixed to 16. The number of the HS-PDSCHs per NodeB is configurable and dependent on the license. The license specifies the maximum number of SF16 codes purchased by the operator. The license works at the NodeB level, which means all cells under a NodeB share the license. The NodeB can dynamically allocate license codes to the HS-PDSCHs between cells based on the actual requirements. The number of available HS-PDSCH codes for a cell is the number of license codes allocated by the NodeB or the number of HS-PDSCH codes allocated by the function of HS-PDSCH code resource management, whichever is smaller. The function of HS-PDSCH code resource management is used to share the cell code resources between DPCH and HS-PPDCH in a cell. As the DPCH and the HS-PDSCH coexist in a cell, sharing the cell code resources between them is of critical importance in HSDPA code resource management. The function of HS-PDSCH code resource management supports both RNC-level and NodeB-level code resource management. RNC-controlled static or dynamic code allocation is enabled through the parameter AllocCodeMode. NodeB-controlled dynamic code allocation is enabled through the parameter DynCodeSw.
If the RNC-controlled static code allocation is used: The number of reserved HS-PDSCH codes is specified by the cell-level parameter HsPdschCodeNum. Based on the reserved number, the RNC reserves codes for the HS-PDSCH. The DPCH, HS-SCCH, and common channels use the other codes. The cell-level parameter HsPdschCodeNum can be set based on the traffic characteristics of the cell. Figure 3-4 shows the RNC-controlled static code allocation.
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Figure 3-4 RNC-controlled static code allocation
If the RNC-controlled dynamic code allocation is used: − The
minimum number of HS-PDSCH codes is specified by the cell-level parameter HsPdschMinCodeNum. The purpose of this setting is to prevent too many DCH users from being admitted and to ensure the basic data transmission of the HS-PDSCH.
− The
maximum number of HS-PDSCH codes is specified by the cell-level parameter HsPdschMaxCodeNum. The purpose of this setting is to prevent too many codes from being allocated for the HS-PDSCH and to prevent DCH users from preempting codes during admission.
− The
number of codes that can be shared between HS-PDSCH and DPCH is equal to the value of HsPdschMaxCodeNum minus the value of HsPdschMinCodeNum, as shown in Figure 3-5. When a code that can be shared is idle, it can be allocated to the HS-PDSCH if the idle code is adjacent to the allocated HS-PDSCH codes.
Figure 3-5 RNC-controlled dynamic code allocation
If the NodeB-Controlled Dynamic Code Allocation is used: Generally, the NodeB can use the HS-PDSCH codes only allocated by the RNC. The NodeB-controlled dynamic code allocation, however, allows the NodeB to temporarily allocate idle codes to the HS-PDSCH. Every TTI, the NodeB detects the SF16 codes that are not allocated to the HS-PDSCH. If such an SF16 code or any of its subcodes is allocated by the RNC to the DCH or a common channel, this SF16 code is regarded as occupied. Otherwise, it is regarded as unoccupied. Therefore, the available HS-PDSCH codes include the codes reserved by the RNC and the idle codes adjacent to the allocated HS-PDSCH codes. If the setup of an RL requires a DPCH code that is already allocated by the NodeB to the HS-PDSCH, the NodeB releases this code and allocates it to an R99 user. Then, the NodeB sends an NBAP message to the RNC, indicating that the RL is set up successfully.
Figure 3-6 NodeB-controlled dynamic code allocation
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The dynamic code allocation controlled by the NodeB is more flexible than the dynamic code allocation controlled by the RNC. The dynamic code allocation controlled by the NodeB shortens the code allocation duration and reduces the number of Iub signaling messages transmitted for code reallocation. If NodeB-controlled dynamic code allocation is enabled, the RNC-controlled dynamic code allocation is disabled dynamically. Huawei recommends the following code allocation modes, where the first mode is preferred:
Configure the RNC to use static code allocation and the NodeB to use dynamic code allocation.
If the NodeB does not support dynamic code allocation, configure the RNC to use dynamic code allocation.
If not all the NodeBs controlled by an RNC support dynamic code allocation, the RNC-controlled dynamic code allocation is recommended. In this case, the NodeB-controlled dynamic code allocation can also be enabled for those supporting NodeBs.
3.7.3 Dynamic Code Tree Reshuffling RegardlessThe HS-PDSCH can use only continuous SF16 codes, regardless of whether the RNC or NodeB controls the dynamic code allocation. By reallocating DPCH or F-DPCH codes, the dynamic code tree reshuffling function can maximize the number of continuous SF16 codes available for the HS-PDSCH. Dynamic code tree reshuffling takes effect only when the following conditions are met:
The cell is not in the basic congestion state that is triggered by code resource. For details about basic congestion state, see Load Control Feature Parameter Description.
The switch parameter CodeAdjForHsdpaSwitch is set to ON. In this case, the RNC moves the codes occupied by R99 users leftward along the code tree and thereby releases shared codes that are close to HS-PDSCH codes. Figure 3-7 shows how this works.
When the RNC-controlled dynamic code allocation or the NodeB-Controlled Dynamic Code Allocation is enabled, codes released by means of dynamic code tree reshuffling can be used by the HS-PDSCH to improve throughput for HSDPA users. Whether the F-DPCH codes can be reallocated through dynamic code tree reshuffling is determined by the parameter RsvdPara1: RSVDBIT6 in the MML command ADD UCELLALGOSWITCH When dynamic code tree reshuffling takes effect, the RNC reshuffles the codes used by the DPCH/F-DPCH to provide more continuous SF16 codes for HSDPA through this function. This function is described as follows: Every time the codes used by the DPCH are changed, the RNC will choose an SF16 subtree that are not used by HS-PDSCH from right to left. The selected subtree must meet the following conditions:
The selected subtree belongs to the code trees that can be shared between HS-PDSCH and DPCH.
The number of DPCHs and F-DPCHs on the selected subtree is smaller than or equal to the threshold specified by the parameter CodeAdjForHsdpaUserNumThd. The parameter CodeAdjForHsdpaUserNumThd limits the number of users that can be reshuffled each time, to prevent too many users from being reshuffled in a short time and therefore to avoid affecting user experience.
When the above conditions are met, the RNC will select this subtree for reshuffling and relocate the users to the positions where the codes are idle.
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Figure 3-7 Dynamic code tree reshuffling
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4 User Plane This chapter consists of the following sections:
Flow Control and Congestion Control
Impact of HSDPA on the RLC and MAC-d Entities
MAC-hs Scheduling
HARQ
TFRC Selection
HSDPA Remaining Power Appending
CQI Adjustment Based on Dynamic BLER Target
BLER Optimization for HSDPA Burst Services
Modulation Scheme
4.1 Flow Control and Congestion Control HSDPA flow control (WRFD-01061010 HSDPA Flow Control) and congestion control are used to control the HSDPA data flow on the Iub and Iur interfaces. HSDPA data packets are sent through the Iub interface to the NodeB and then through the Uu interface to the UE. Therefore, congestion may occur on the Uu, Iub, or Iur interface. Flow control is used to relieve Uu congestion, and congestion control is used to relieve Iub/Iur congestion. The two types of control are implemented by the NodeB. HSDPA flow control and congestion control are part of the HSDPA Iub frame protocol (3GPP TS 25.435). They are implemented for each MAC-hs queue through the Capacity Request message sent by the RNC and the Capacity Allocation message sent by the NodeB. Figure 4-1 shows the basic principles of flow control and congestion control. Figure 4-1 Basic principles of Iub flow control and congestion control
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4.1.1 Flow Control For each MAC-hs queue, flow control calculates the pre-allocated Iub bandwidth based on the Uu transmission rate and the amount of data buffered in the NodeB. The Uu transmission rate of the MAC-hs queue is determined by the scheduling algorithm. For each MAC-hs queue, if the Iub transmission rate is higher than the Uu transmission rate, the data packets are buffered. Too much data buffered in the NodeB leads to transmission delay and even packet loss. Therefore, each MAC-hs queue should not have too much data buffered in the NodeB. On the other hand, it should keep a certain amount of data to avoid wasting the Uu resources due to no data to transmit. The flow control procedure is as follows: 1. The NodeB measures the buffered data amount of each MAC-hs queue and the average Uu transmission rate. 2. The NodeB estimates the buffering time based on the measurements. 3. The NodeB adjusts the Iub bandwidth pre-allocated to the MAC-hs queue. The pre-allocated Iub bandwidth is adjusted as follows:
If the buffering time is too short, you can infer that the RNC slows down the data transmission, that is, the Iub transmission rate is lower than the Uu transmission rate. In this case, the pre-allocated Iub bandwidth is adjusted to a value greater than the average Uu transmission rate.
If the buffering time is appropriate, the pre-allocated Iub bandwidth is adjusted to the average Uu transmission rate.
If the buffering time is too long, the pre-allocated Iub bandwidth is adjusted to a value smaller than the average Uu transmission rate.
For details on flow control, see Transmission Resource Management Feature Parameter Description.
4.1.2 Congestion Control The Iub bandwidth may be lower than the Uu bandwidth. If the RNC uses the Iub bandwidth pre-allocated to each MAC-hs queue, the Iub bandwidth for HSDPA is insufficient. This may lead to congestion and even packet loss. The amount of data to be transmitted is sent by the RNC to each MAC-hs queue through the Capacity Request message. Based on this amount and the total Iub bandwidth available for HSDPA, the congestion control function adjusts the bandwidth pre-allocated to each MAC-hs queue. Therefore, congestion control ensures that the total bandwidth actually allocated to all the MAC-hs queues is not higher than the total available Iub bandwidth. The total Iub bandwidth available for HSDPA depends on the variations in HSDPA packet delay and the situation of packet loss. HSDPA shares the bandwidth with the DCH and control signaling, and the DCH and control signaling has higher priorities than HSDPA. Therefore, when the HSDPA packet delay or packet loss increases, you can infer that the number of DCHs or the amount of control signaling increases. In such a case, the bandwidth available for HSDPA decreases and the bandwidth actually allocated for HSDPA decreases. For details on congestion control, see Transmission Resource Management Feature Parameter Description.
For the Iur interface, flow control and congestion control are also applied. The control principles and processing procedures are the same as those for the Iub interface.
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4.2 Impact of HSDPA on the RLC and MAC-d Entities 4.2.1 Impact on the RLC Entity One of the main purposes of HSDPA is to reduce latency by handling retransmissions at NodeB level. Retransmissions, however, may still be triggered at the RLC layer of the RNC under the following circumstances:
The NodeB misinterprets an NACK sent by the UE.
The number of HARQ retransmissions exceeds the maximum permissible number.
The data buffered in the NodeB is lost when the HS-DSCH serving cell changes.
Therefore, HARQ retransmission cannot totally replace RLC retransmission, which is described in 3GPP TS 25.322. For services with high requirements for data transmission reliability, Huawei recommends that the RLC acknowledged mode (AM) also be used to ensure correct transmission on the Uu interface even when the services such as the BE service are carried on HSDPA channels. Before the introduction of HSDPA, the size of an RLC PDU is usually 336 bits, where 320 bits are for the payload and 16 bits for the RLC header. Without additional overhead, the MAC PDU is of the same size as the RLC PDU. According to the 3GPP specifications, a maximum of 2,047 RLC PDUs can be transmitted within an RLC window, and the RTT at the RLC layer is about 100 ms (50 TTIs). In this condition, the maximum peak rate can only be 336 bits x (2047/50)/2 ms = 6.88 Mbit/s. To reach higher rates, an RLC PDU of 656 bits is introduced, where 640 bits are for the payload and 16 bits for the RLC header. The RLC PDU size can be set for each typical service. For high-speed services, the size is set to 656 bits by default. In addition, the RLC PDU size is fixed to 656 bits, and a transport block of 27,952 bits can contain a maximum of 42 PDUs. Therefore, the maximum RLC payload rate is (656 bits - 16 bits) x 42/2 ms = 13.44 Mbit/s. For example, 3GPP specifies that the UE of category 10 can use a maximum of 15 codes and receive a transport block with a maximum of 27,952 bits. For details, see 3GPP TS 25.306. Therefore, the theoretical peak rate is 27952 bits/2 ms = 13.976 Mbit/s. In practice, the radio channel quality, retransmission probability, and available power also need to be considered. Therefore, the UE of category 10 cannot reach 13.44 Mbit/s at the RLC layer in most tests. A fixed RLC PDU size results in lower transmission efficiency due to unnecessary filler data and redundant RLC PDU headers. Another reason why a fixed RLC PDU size is not desirable is that high-speed transmission requires a large RLC PDU size required whereas edge coverage requires a small RLC PDU size. Downlink layer 2 enhancement can be used to address these problems. With downlink layer 2 enhancement, the RLC AM entity supports a variable PDU size, and the RLC layer does not segment upper-layer packets whose sizes are smaller than the maximum RLC PDU size. The RLC layer can flexibly adapt to traffic variations and reduce the overheads caused by RLC PDU headers. For details about downlink layer 2 enhancement, see HSPA Evolution Feature Parameter Description.
4.2.2 Impact on the MAC-d Entity The MAC-d functionality is unchanged after the introduction of HSDPA. The HS-DSCH bearers are mapped onto MAC-d flows on the Iub/Iur interface. Each MAC-d flow has its own priority queue.
4.3 MAC-hs Scheduling This section describes the feature WRFD-01061009 HSDPA H-ARQ & Scheduling (MAX C/I, RR, and PF).
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With the limited Uu resources for HSDPA in a cell, the user expects to maximize the service rate while the telecom operator expects to maximize the system capacity. MAC-hs scheduling is used to coordinate the Uu resources, user experience, and system capacity. It is implemented at the NodeB MAC-hs. The scheduling algorithm consists of two steps. At first, the algorithm determines which initial transmission queues or retransmission processes can be put into the candidate set for scheduling. Then, the algorithm calculates their priorities based on factors such as the CQI, user fairness, and differentiated services. If the algorithm is weighted more towards the channel quality of the UE, the HSDPA cell can have a higher capacity but user fairness and differentiated services may be affected. If the algorithm is weighted more towards user fairness and differentiated services, the system capacity may be affected. Huawei provides five scheduling algorithms: maximum C/I (MAXCI), round-robin (RR), proportional fair (PF), Enhanced Proportional Fair (EPF), and EPF based on UE location (EPF_LOC). The EPF and EPF_LOC are optional.
4.3.1 Determining the Candidate Set The candidate for scheduling contains new data packets (initial transmission queues) or data packets to be retransmitted (retransmission processes), with the following exceptions:
If the UE starts the compressed mode, its data cannot be put into the candidate set during the GAP.
If the UE category requires the UE to wait for several TTIs before it can be scheduled again, its data cannot be put into the candidate set in this period. The UE of category 1 or 2 needs to wait for 3 TTIs, and the UE of category 3, 4, and 11 must wait for 2 TTIs.
If the number of retransmissions of a data packet reaches or exceeds the maximum number, the data of this UE cannot be put into the candidate set. The data should be discarded. Huawei supports that the maximum number of retransmissions is set on a service basis: − MaxNonConverHarqRt:
the maximum number of non-conversational service retransmissions in the
CELL_DCH state − MaxEfachHarqRt:
The UE in the enhanced CELL_FACH state does not report ACK, NACK, or CQI in the uplink. The HARQ processes of the UE use the blind retransmission mechanism. The maximum number of retransmissions for the UE in Enhanced CELL_FACH Operation is specified by this parameter.
The CQI reported by the UE is 0.
There is no data in the Mac-ehs or Mac-hs queue for the UE.
The uplink channel quality of UEs is poor and the uplink channels of these UEs are carrying PS conversational services or SRBs.
The MAC-hs can schedule data packets and select Transport Format and Resource Combine (TFRC) entities for UEs whose uplink channel quality is poor and CQI is not 0 when the following conditions are met:
The MAC-hs queue contains the data packets of these UEs and the data size is not 0.
The scheduling time does not fall into the GAP.
For new data packets, the MAC-hs calculates the scheduling priority for the follow-up data packet scheduling and TFRC entity selection based on the principle that applies to a CQI of 12 (CQI adjustments are not performed). For data packets to be retransmitted, the MAC-hs schedules these data packets and selects TFRC entities in the same way as it operates on UEs with good uplink channel quality.
4.3.2 Calculating Scheduling Priorities Five algorithms are available for calculating the priorities of data packets in the candidate set. The scheduling policies vary according to the algorithms for calculating the priorities of data packets. The algorithm to be used is specified by the parameter SM on the NodeB LMT.
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Comparison of Five Algorithms Table 4-1 lists the factors considered in the five scheduling algorithms. Table 4-1 Factors considered in the five scheduling algorithms Factor
MAXCI
RR
PF
EPF
EPF_LOC
Service type
No
No
No
Yes
Yes
Initial transmission or retransmission
Yes
Yes
Yes
Yes
Yes
Maximum power
No
No
No
Yes
Yes
Waiting time
No
Yes
No
Yes
Yes
CQI
Yes
No
Yes
Yes
Yes
Actual throughput
No
No
Yes
Yes
Yes
SPI
No
No
No
Yes
Yes
SPI Weight
No
No
No
Yes
Yes
GBR
No
No
No
Yes
Yes
HBR
No
No
No
Yes
Yes
UE Location
No
No
No
No
Yes
Table 4-2 lists the effects of the five scheduling algorithms. Table 4-2 Effects of the five scheduling algorithms Item
MAXCI
RR
PF
EPF
EPF_LOC
System capacity
Highest
High
Higher
Higher
Higher
User fairness
Not guaranteed Best
Guaranteed
Guaranteed Not guaranteed
Differentiated services
Not guaranteed Not guaranteed Not guaranteed Guaranteed Guaranteed
Real-time services
Not guaranteed Not guaranteed Not guaranteed Guaranteed Guaranteed
MAXCI Algorithm The retransmission processes unconditionally have higher priorities than the initial transmission queues. The retransmission processes are sorted in first-in first-out (FIFO) mode. The initial transmission queues are sorted in the CQI order. A higher CQI means a higher data priority. The MAXCI algorithm aims to maximize the system capacity but cannot ensure user fairness and differentiated services. The UE estimates the CQI based on the assumption that the transmit power of the HS-PDSCH on the network side is as follows:
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where
PCPICH is the transmit power of the CPICH.
is the measurement power offset (MPO). It is specified by the parameter HsPdschMPOConstEnum on the RNC side and sent to the NodeB and UE.
is the reference power adjustment. It is set to 0 in most cases. For details, see 3GPP TS 25.214.
RR Algorithm The retransmission processes unconditionally have higher priorities than the initial transmission queues. The retransmission processes are sorted in FIFO mode. The initial transmission queues are sorted in the order of the waiting time in the MAC-hs queue. A longer waiting time means a higher data priority. The RR algorithm aims to ensure user fairness but cannot provide differentiated services. Not considering the CQI reported by the UE leads to lower system capacity.
PF Algorithm The retransmission processes unconditionally have higher priorities than the initial transmission queues. The retransmission processes are sorted in FIFO mode. The initial transmission queues are sorted in the order of R/r. Here, R represents the throughput corresponding to the CQI reported by the UE, and r represents the throughput achieved by the UE. A greater R/r value means a higher data priority. The PF algorithm aims to make a tradeoff between system capacity and user fairness. It provides the user with an average throughput that is proportional to the actual channel quality. The system capacity provided by PF is between the system capacity provided by RR and that provided by MAXCI.
EPF Algorithm The EPF algorithm (WRFD-01061103 Scheduling based on EPF and GBR) is an enhanced algorithm developed based on the PF algorithm. The EPF algorithm defines more priorities than the PF algorithm to better meet the QoS requirements of different services. The EPF algorithm can meet the requirements of telecom operators related to user fairness and differentiated services and also provide a high system capacity. The EPF algorithm follows certain criteria to prioritize queues:
Service types are the first to be considered. They are prioritized in a sequence: SRB and IMS > voice services > streaming services > BE services.
Different services of the same type are prioritized as follows: − Retransmission
queues are prioritized over initial transmission queues.
− Guaranteed
bit rate (GBR) queues that have not arrived are prioritized over GBR queues that have already arrived.
− Queues
with high SPI weights are prioritized over those with low SPI weights.
− High
bit rate (HBR) queues that have not arrived are prioritized over HBR queues that have already arrived.
User fairness is implemented in EPF as follows:
EFP algorithm guarantees the user fairness in the same way as that PF algorithm. HBR and Resource Limit is used in EPF to limit the use of single users and improve fairness.
HBR is used to determine the throughput expected by the user based on a study on user experience. − When
the rate for a user reaches the HBR, the scheduling probability for the user is decreased. The HBR is specified by the parameter HappyBR on the RNC side.
Resource Limit is used to prevent the users in areas with poor coverage from consuming too many cell resources so that there is no decrease in system capacity.
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− When
the resource limitation switch (RscLmSw) is on, the algorithm allocates the lowest priority to a queue whose power consumption exceeds the threshold. If the power available to the queue is limited, the queue's priority is always considered as meeting the GBR. The ratio of the maximum available power of a queue to the total power of the cell is specified by the NodeB MML command SET RSCLMTPARA.
Differentiated service is implemented in EPF as follows:
Differentiated services are provided based on SPI and SPI weights. − SPI
is a parameter specified based on service types and users priorities.
− SPIweight
can be specified according to the SPI to provide differentiated services.
The SPI weight affects the calculation of queue priorities. It is used to quantify the differentiated services. If resource is insufficient, the proportion of SPI weights determines the approximate proportion of rates among users. For example, for three throughput-sensitive service users with the same channel quality, the same GBR and the proportion of SPI weights is 100:50:30, the proportion of actual rates is close to 100:50:30.
For details on the parameters related to QoS management, such as the GBR, SPI, SPI weight, and HBR, see QoS Management Feature Parameter Description.
EPF_LOC Algorithm UEs' location in a cell can be defined as a near, middle, or far distance from the NodeB. HSDPA UEs closer to the NodeB have better channel environments and report higher CQIs, as shown in Figure 4-2. Figure 4-2 UE locations and CQIs
With the EPF/PF algorithm, UEs that have the same SPI weight value but are at different distances from the NodeB have roughly equal scheduling opportunities. The EPF_LOC algorithm (WRFD-140221 HSDPA Scheduling based on UE Location) builds on the EPF algorithm and considers UE locations as HSDPA scheduling weights. While ensuring GBRs for all UEs, the EPF_LOC algorithm gives more scheduling opportunities to UEs that are close to the NodeB in order to improve throughput for these UEs. Since these UEs can obtain larger transmission blocks than UEs farther from the NodeB, the overall throughput of the cell is improved. CQIs indirectly reflect UE locations. A CQI reported by a UE implies the UE's location, a near, middle, or far distance either between the UE and the NodeB, or between the UEs within a cell. Assuming that there are two UEs far from the NodeB and the CQIs reported by them are 15 and 13, respectively, the UE that reports the CQI 15 has more scheduling opportunities and higher downlink throughput.
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The PF and EPF algorithms consider the value R/r, where R is the throughput corresponding to the CQI reported by the UE. The EPF_LOC algorithm is based on the EPF algorithm. In addition to R/r, the EPF_LOC algorithm also considers UE locations indicated by CQIs.
If a larger value is set for the LOCWEIGHT parameter, UE locations weigh more in the EPF_LOC algorithm. Theoretically, this results in a higher downlink throughput of the cell and greater differentiation between UEs at different distances from the NodeB. UEs closer to the NodeB have more scheduling opportunities and higher throughput, which is the other way around for UEs farther from the NodeB.
UEs closer to the NodeB have more scheduling opportunities and therefore higher throughput. This improves the cell throughput.
UEs farther from the NodeB have fewer scheduling opportunities and therefore lower throughput.
To ensure user experience at cell edges, it is recommended that GBRs be configured for all BE services. To configure GBRs, run the SET UUSERGBR command on the RNC.
The LOCWeight and SPIWeight parameters simultaneously affect HSDPA scheduling weights. UEs far from the NodeB will experience decreased downlink rates after this feature is activated. If high rates need to be ensured for gold users, it is recommended that higher GBRs or SPI weight values be set for gold users.
The EPF_LOC algorithm gives more scheduling opportunities to UEs closer to the NodeB and increases the downlink overall throughput of the cell. Cell throughput gains relate to UEs' CQIs. With EPF_LOC algorithm, HSDPA UEs at cell edges have fewer scheduling opportunities and lower throughput. If GBRs are not configured for BE services, HSDPA UEs at cell edges may have to wait a long time before they have scheduling opportunities. As a result, traffic radio bearers (TRBs) are more likely to reset and the call drop rate increases. The magnitude of this impact depends on factors such as UE location distribution and service distribution in the cell. It is recommended that GBRs be configured for BE services to ensure network performance.
4.3.3 Time and HS-PDSCH Codes Multiplex This section describes the feature WRFD-01061018 Time and HS-PDSCH Codes Multiplex. After scheduling, HSDPA users will be allocated to different time and code. Figure 4-3 shows the time division and code division over the air interface for HSDPA users in one cell. Figure 4-3 HSDPA scheduling based on time division and code division
The feature of time and HS-PDSCH codes multiplex enables the allocation of different codes in the same TTI to different users or the time division multiplexing of the same code in different TTIs for different users to provide the utilization of code resources and the system throughput.
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The parallel data transmission of multiple users over HS-DSCH requires more HS-SCCH codes and HS-PDSCH codes within a single TTI. Code multiplexing is adopted and is found useful when the NodeB has more HS-PDSCH codes for allocation than those supported by the UE. For instance, the UE supports 5 codes and the NodeB has 10 codes available in a single TTI. The code multiplexing can increase the resource utilization and system throughput.
4.4 HARQ The main purpose of introducing HARQ is to reduce the retransmission delay and improve the retransmission efficiency. HARQ enables fast retransmission at the physical layer. Before decoding, the UE combines the retransmitted data and the previously received data, making full use of the data transmitted each time. In addition, HARQ can fine-tune the effective rate to compensate for the errors made by TFRC section.
4.4.1 HARQ Retransmission Principles The HARQ process of HSDPA involves only the NodeB and the UE, without involving the RNC. After receiving a MAC-hs PDU sent by the NodeB, the UE performs a CRC check and reports an ACK or NACK on the HS-DPCCH to the NodeB:
If the UE reports an ACK, the NodeB transmits the next new data.
If the UE reports an NACK, the NodeB retransmits the original data. After receiving the data, the UE performs soft combining of this data and the data received before, decodes the combined data, and then reports an ACK or NACK to the NodeB.
RLC retransmission on the DCH involves the RNC, and therefore the RTT is relatively long. In comparison, HARQ involves only the physical layer and MAC-hs of the NodeB and those of the UE, and therefore the RTT is reduced to only 6 TTIs (12 ms). After a transmission, the HARQ process must wait at least 10 ms before it can transmit the next new data or retransmit the original data. Therefore, to improve transmission efficiency, other HARQ processes can transmit data during the waiting time. A maximum of six HARQ processes can be configured in each of the NodeB HARQ entity and the UE HARQ entity. Note that not all UE categories support six HARQ processes. For example, the UEs of some categories can receive data every one or two TTIs. Therefore, only two or three HARQ processes can be configured. The RAN can automatically choose the most appropriate configuration based on UE capability. Figure 4-4 HARQ retransmission principles
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4.4.2 Soft Combining During HARQ Before decoding a MAC-hs PDU, the UE performs soft combining of all the data received before to improve the utilization of Uu resources and therefore increase the cell capacity. The size of the UE buffer determines the number of coded bits or the size of transport blocks. For HARQ retransmission between the NodeB and the UE, two combining strategies are available. They are Chase Combining (CC) and Incremental Redundancy (IR). In the case of CC, all retransmitted data is the same as previously transmitted data. In the case of IR, the retransmitted data may be different from the previously transmitted data. In comparison, IR has a higher gain than CC but requires more buffer space. CC can be regarded as a special case of IR. The IR strategy is hard-coded in Huawei RAN.
4.4.3 Preamble and Postamble If the HS-SCCH is received, the UE checks whether the HS-PDSCH is also correctly received and then reports an ACK or NACK in the first slot of the HS-DPCCH subframe. If the HS-SCCH is erroneously received, the UE does not report any information in the first slot of the HS-DPCCH subframe. This type of transmission is called DTX. In the case of high interference, the NodeB may demodulate DTX as ACK by mistake when demodulating the HS-DPCCH. Therefore, the lost data blocks cannot be retransmitted through HARQ retransmission, and the reception can be ensured only through RLC retransmission. To meet the requirement of the 3GPP specifications for a low DTX misjudgment probability, more power has to be allocated for HS-DPCCH ACK/NACK. To solve this problem, 3GPP TS 25.214 introduces preamble and postamble (WRFD-01061113 HS-DPCCH Preamble Support). When the NodeB demodulates an HS-DPCCH ACK/NACK, it considers the subframe prior to and the subframe next to the HS-DPCCH subframe in addition to the HS-DPCCH subframe itself. Therefore, for a certain DTX misjudgment probability, the introduction of preamble and postamble reduces the power required by ACK/NACK, lower the downlink load level, and increase the uplink capacity. Figure 4-5 HS-DPCCH preamble and postamble
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4.5 TFRC Selection The TFRC selection algorithm handles the MAC-hs queues in descending order of their priorities determined by the scheduler. In each TTI, the TFRC entity of a cell selects one or multiple queues and does the following:
Determining the amount of data that can be transmitted by the queue or queues
Determining the modulation scheme of the queue or queues
Allocating appropriate power and channelization codes to the queue or queues
The basic procedure for the TFRC selection algorithm is as follows: 1. Based on the CQI reported by the UE, available power, and available channelization codes, the algorithm searches a CQI mapping table for the TBSmax, that is, the maximum MAC-hs transport block size (TBS). Note that the available power for every HSDPA user is restricted by MXPWRPHUSR. 2. Based on the TBSmax and the amount of data buffered in the queue, the algorithm determines the most appropriate MAC-hs TBS (TBSused). If the data buffered in the MAC-hs queue is enough to fill the space for carrying data in a transport block with the TBSmax, then the TBSmax is taken as the TBS to be used (TBSused). The TBSmax, however, may be much larger than the data buffered in the MAC-hs queue. If this TBS is used, too many padding bits reduce the spectrum efficiency. To solve this problem, the algorithm searches the CQI mapping table backward for the CQI or the number of codes to obtain the most appropriate TBS and the corresponding modulation scheme. This TBS should be the smallest one in the TBS set that can carry the buffered data. The power and code resources determined through backward searching are taken as the ones for allocation. 3. Based on the TBSused, the algorithm determines the most appropriate power, codes, and modulation scheme. Huawei supports three backward-searching methods, which are specified by the parameter RscAllocM on the NodeB side:
If the parameter is set to Code_Pri, the TFRC algorithm prefers the use of codes. Under the precondition that the transport block with the TBS is large enough to carry the buffered data, the algorithm first reduces the power. If the corresponding CQI decreases to the smallest one but the precondition is still met, the algorithm attempts to reduce the number of codes. This setting is applicable the outdoor macro base station with limited power.
If the parameter is set to Power_Pri, the TFRC algorithm prefers the use of power. Under the precondition that the transport block with the TBS is large enough to carry the buffered data, the algorithm first reduces the number of codes. If the number of codes decreases to 1 but the precondition is still met, the algorithm attempts to reduce the power. This setting is applicable to indoor application with limited codes.
If the parameter is set to PowerCode_Bal, the TFRC algorithm balances the use of power and the use of codes. Under the precondition that the transport block with the TBS is large enough to carry the buffered data, the algorithm reduces the power and codes in a balanced mode. This setting protects the codes or power from being used up, improving the resource usage and increasing the cell capacity.
Figure 4-6 shows the backward-searching methods used when the parameter is set to Code_Pri or Power_Pri.
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Figure 4-6 Backward-searching methods used when the parameter is set to Code_Pri or Power_Pri
Figure 4-7 shows the backward-searching methods used when the parameter is set to PowerCode_Bal. Figure 4-7 Backward-searching methods used when the parameter is set to PowerCode_Bal
4.6 HSDPA Remaining Power Appending When only a small amount of data is buffered in the MAC-hs queue, the TFRC selection algorithm searches the CQI mapping table backward for the CQI or the number of codes to obtain the most appropriate TBS. This TBS should be the smallest one in the TBS set that can carry the buffered data. Under this circumstance, the cell has a certain number of remaining power resources. Full utilization of these power resources helps further reduce the downlink BLER and improve user experience. The HSDPA remaining power appending algorithm helps fully utilize the remaining power resources. This algorithm appends certain power to the HS-PDSCH power calculated by the TFRC selection algorithm if the last queue in a TTI carries streaming, interactive, or background data of a UE in CELL_DCH state (including initial transmission and retransmission). After the introduction of the HSDPA remaining power appending algorithm, the NodeB parameter RESVERD3 is added for specifying the maximum amount of power that can be allocated to HS-PDSCH power from the remaining power resources in the cell in question. This parameter is added to the SET LOCELLRSVP command. It is in units of 0.25 dB. The value of this parameter must be equal to or less than the cell remaining power in a TTI.
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With the increase in downlink power, the downlink load is also increased. When the downlink load becomes heavy, network KPIs are deteriorated. Therefore, the RESVERD3 parameter cannot be set to a too large value. Before enabling the HSDPA remaining power appending algorithm, ensure that HSDPA has been enabled on the network and that UEs support HSDPA. When the RESVERD3 parameter is set to 0, the HSDPA remaining power appending algorithm does not take effect. When the CQI adjustment based on a fixed IBLER(Initial Block Error Rate) target algorithm is enabled on the NodeB, the HSDPA remaining power appending algorithm does not take effect. IBLER stands for initial block error rate.
4.7 CQI Adjustment Based on Dynamic BLER Target This section describes the feature WRFD-030010 CQI Adjustment Based on Dynamic BLER Target.
Overview The CQI measures the channel conditions of a UE and is reported from the UE to the NodeB. Without this feature, the NodeB determines an appropriate TBS based on the reported CQI, system resources, and the TFRC policy. If the reported CQI and related conditions remain the same, the NodeB does not change the TBS because it does not consider the ever-changing radio environments. The constant changes in radio environments, caused by multipath effects and UE mobility, lead to fluctuating channel quality. Under these circumstances, choosing a TBS based on the reported CQI makes it difficult to always achieve the optimum downlink throughput. With the feature CQI adjustment based on dynamic BLER target, the NodeB monitors the channel quality fluctuations for HSDPA users in a cell in real time and dynamically selects a proper BLER target based on the monitoring result. The NodeB then uses the BLER target to adjust the CQI reported by the UE. Based on the adjusted CQI, the NodeB determines an appropriate TBS to achieve higher downlink throughput for HSDPA users and higher cell throughput.
The BLER described in this section refers to the SBLER at the MAC-(e)hs layer and reflects the average block error rate at the MAC layer. Accordingly, the BLER target described in this section refers to the SBLER target at the MAC-(e)hs layer.
The required BLER target may be high in some environments; therefore this feature is not suitable for networks that limit the BLER target. This feature requires that both the network and UE support HSDPA. This feature is applicable to all HSDPA terminals except for the terminals that are configured with MIMO. Different terminals may have different performance for the same TB size. Some terminals may have greater BLERs. This feature adjusts the TB size for terminals based on data transmission performance to achieve optimized performance. This feature can be enabled by selecting the CQI_ADJ_BY_DYN_BLER check box under the CQIADJALGOFNONCON parameter.
CQI Adjustment Process CQI adjustment based on dynamic BLER target is performed in each TTI. The following describes the adjustment process: 1. Based on the CQI reported by the UE, the NodeB checks the actual radio environment, which is affected by multipath effects and UE mobility. 2. Based on the actual radio environment and channel quality of the UE, the NodeB obtains an optimum BLER target, which helps to achieve the highest possible throughput for the UE.
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3. Based on the ACK, NACK, or DTX indication from the UE in the current TTI and on the optimum BLER target, the NodeB calculates the CQI offset, which can be a positive or negative number. The NodeB then uses the CQI offset to adjust the CQI. 4. Based on the adjusted CQI, the NodeB selects an appropriate TBS by using the TFRC algorithm.
4.8 BLER Optimization for HSDPA Burst Services After a UE reports a CQI to the NodeB, the channel quality for the UE may change before the NodeB schedules this UE's data packets and selects TFRC entities for this UE. Such changes are likely to occur in the following scenarios:
Scenario 1: The UE is engaged in initial HSDPA data transmission.
Scenario 2: The UE is processing burst services, for example, the UE is browsing web sites, sending heartbeat packets, microblogging, or using the QQ application.
If the NodeB uses the CQI that is reported by the UE when the UE does not process any data, the NodeB regards that the interference between channels is not strong. When the UE starts processing data, the BLER may be high, prolonging the delay and affecting the burst service throughput. The BLER Optimization for HSDPA Burst Services function calculates the interference of a UE when the UE reports a CQI to the NodeB and calculates the interference when the UE starts data transmission. Then, this function works out the interference difference in the two scenarios. Based on the difference, this function adjusts the CQI. By doing this, the NodeB can use an appropriate CQI when the UE is engaged in initial HSDPA data transmission or is processing burst services. This helps reduce the BLER and increase burst service throughput. The BLER Optimization for HSDPA Burst Services function is controlled by the RESVERD1:RSVDBIT29 parameter in the SET LOCELLRSVP command. To use this function, the target network must support HSDPA and some UEs are HSDPA-capable. This function takes effect on all HSDPA-capable UEs.
4.9 Modulation Scheme QPSK and 16QAM The HS-PDSCH is used to carry the HS-DSCH data. HS-PDSCH can use QPSK (WRFD-01061017 QPSK Modulation) or 16QAM (WRFD-010629 DL 16QAM Modulation) modulation symbols.
When the UE is in the unfavorable radio environment, the transmission can adopt the low-order QPSK modulation mode and small transport blocks to ensure communication quality.
When the UE is in the favorable radio environment, the transmission can adopt the high-order 16QAM modulation scheme and large transport blocks to reach a high peak rate.
QPSK modulation is a basic downlink data modulation function that is used after HSDPA is introduced. Compared with the QPSK modulation scheme, the 16QAM modulation scheme is a higher-order downlink data modulation scheme. This feature enables the peak rate on the Uu interface to reach 14.4 Mbit/s.
64QAM 3GPP R5 introduces 16QAM to increase the peak rate per user and expands the system capacity, whereas 64QAM introduced in 3GPP R7 protocols is a further enhancement of 16QAM. With downlink 64QAM, a higher-order modulation scheme than 16QAM can be used when the channel is of higher quality. Theoretically, 64QAM supports a peak data rate of 21 Mbit/s and at the same time increases the average throughput of the system. Simulation shows that compared with 16QAM, 64QAM
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can increase the average throughput by 7% and 16% respectively in macro cell and in micro cell, if the UEs in the cells use the type 3 receivers. The 3GPP R7 protocols define the categories of the UEs that support 64QAM, and add the information elements (IEs) that support 64QAM in the reporting of local cell capability. The RNC determines whether the RL between the NodeB and the UE supports 64QAM according to the local cell capability reported by the NodeB and the UE capability. If the RL supports 64QAM, the MAC-hs scheduler of the NodeB determines every 2 ms whether to use 64QAM according to the following aspects:
Channel Quality Indicator (CQI) reported by the UE
HS-PDSCH code resources and power resources of the NodeB
Compared with the 16QAM modulation scheme, the 64QAM modulation scheme is a higher-order downlink data modulation scheme. This feature enables the peak rate on the Uu interface to reach 21 Mbit/s.
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5 QoS Management and Management over Differentiated Services
5 QoS Management and Management over Differentiated Services This chapter consists of the following sections:
QoS Management
Diff-Serv Management
5.1 QoS Management The goal of service-oriented QoS management is to improve user experience by reducing the service delay and BLER and by increasing the service rate and continuity. The requirements for QoS vary according to the type of service:
The conversational service (including the CS voice and VoIP) has a relatively high requirement for service delay and a certain requirement for BLER.
The streaming service has a requirement for guaranteed bit rate (GBR).
The FTP service has a high requirement for BLER and error-free transmission. In addition, this service requires higher service rates to provide better user experience.
The HTTP service has a high requirement for error-free transmission and a certain requirement for response delay. In addition, this service requires shorter delay to provide better user experience.
HSDPA QoS management is implemented by related HSDPA functions. The following table lists the relationships between HSDPA functions and QoS indicators. Table 5-1 Relationships between HSDPA functions and QoS indicators Function
Service Connectivity
Service Delay
Service Rate
Mobility management
HSDPA bearer mapping
Load control
RLC retransmission Flow control
BLER
Congestion control
HARQ
MAC-hs scheduling
TFRC selection
These relationships between HSDPA functions and QoS indicators are described as follows:
Mobility management Service continuity is implemented by mobility management. For details, see section 3.3 "Mobility Management" and Handover Feature Parameter Description.
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Bearer mapping HSDPA bearers increase the service rate greatly and reduce the service delay. For details, see section 3.1 "Bearer Mapping."
Load control The network resources are limited. Therefore, when a large number of users attempt to access the network, the access control function is required to control the access to ensure the QoS of the admitted users. The network resources consumed by the admitted users vary with the changed channel qualities, which may lead to network congestion. To relieve congestion, the overload control function is required to ensure the QoS of most users. For details on load control, see Load Control Feature Parameter Description.
RLC retransmission and HARQ To achieve error-free transmission and improve transmission efficiency, HSDPA introduces HARQ at the physical layer. HARQ, however, cannot completely ensure error-free transmission. Therefore, it should work with RLC retransmission and TCP retransmission. For details, see sections 4.2 "Impact of HSDPA on the RLC and MAC-d Entities" and 4.4 "HARQ."
Flow control and congestion control By allocating appropriate Iub bandwidth to users, the flow control function reduces the transmission time. Therefore, it prevents too much data from waiting in the buffer at the MAC-hs and avoids unnecessary RLC retransmissions. In addition, it protects service data from overflowing from the buffer at the MAC-hs. Through congestion detection and congestion control, the congestion control function reduces the packet loss probability. For details, see section 4.1 "Flow Control and Congestion Control."
MAC-hs scheduling Based on the waiting time, achieved service rate, and GBR, the MAC-hs scheduling function sorts the users to meet the requirements for transmission delay and transmission rate on the Uu interface. For details, see section 4.3 "MAC-hs Scheduling."
TFRC selection Based on the available power, available codes, actual channel quality, and actual data amount, the TFRC selection function selects appropriate transport blocks and modulation schemes to increase data rates. For details, see section 4.5 "TFRC Selection."
5.2 Diff-Serv Management Different services have different service types, and different users have different priorities. During resource allocation, differentiated services are provided. Differentiated services for HSDPA users are as follows:
Differentiated services based on service types
Differentiated services based on user priorities
To further quantify the effect of Diff-Serv management, differentiated services based on SPI weights (WRFD-020806 Differentiated Service Based on SPI Weight) are introduced.
For details, see Differentiated HSPA Service Feature Parameter Description.
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6 Related Features
6 Related Features 6.1 WRFD-010610 HSDPA Introduction Package 6.1.1 Prerequisite Features None
6.1.2 Mutually Exclusive Features None
6.1.3 Impacted Features None
6.2 WRFD-010653 96 HSDPA Users per Cell 6.2.1 Prerequisite Features This feature depends on the following features:
WRFD-010623 64 HSDPA Users per Cell
WRFD-010639 96 HSUPA Users per Cell
WRFD-010686 CPC - DTX/DRX
6.2.2 Mutually Exclusive Features None
6.2.3 Impacted Features None
6.3 WRFD-010654 128 HSDPA Users per Cell 6.3.1 Prerequisite Features This feature depends on the following features:
WRFD-010653 96 HSDPA Users per Cell
WRFD-010670 128 HSUPA Users per Cell
6.3.2 Mutually Exclusive Features None
6.3.3 Impacted Feature None
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6.4 WRFD-030010 CQI Adjustment Based on Dynamic BLER Target 6.4.1 Prerequisite Features This feature depends on the feature WRFD-010610 HSDPA Introduction Package.
6.4.2 Mutually Exclusive Features None
6.4.3 Impacted Feature None
6.5 WRFD-140221 HSDPA Scheduling based on UE Location 6.5.1 Prerequisite Features This feature depends on the following features:
WRFD-010610HSDPA Introduction Package
WRFD-010611 HSDPA Enhanced Package
6.5.2 Mutually Exclusive Features None
6.5.3 Impacted Feature None
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7 Network Impact
7 Network Impact 7.1 WRFD-010610 HSDPA Introduction Package 7.1.1 System Capacity After activating HSDPA Introduction Package, the downlink cell throughput, downlink cell capacity, and downlink data rate (which can reach up to 13.9 Mbit/s at the MAC layer for each HSDPA UE) increase.
7.1.2 Network Performance The HSDPA Introduction Package feature provides:
Maximized power resource utilization
HSDPA Introduction Package adjusts the downlink power and data rate based on channel quality, maximizing the power resource utilization.
Shorter delay
With TTIs of 2 ms and 10 ms, which provide shorter scheduling intervals, the fast scheduling algorithm enables the NodeB to quickly schedule and retransmit data.
Higher uplink cell throughput
HARQ helps increase the downlink cell throughput.
7.2 WRFD-010653 96 HSDPA Users per Cell 7.2.1 System Capacity This feature increases the downlink load but helps to admit more HSDPA users.In ideal conditions, a single cell can support a maximum of 96 HSDPA UEs simultaneously.
7.2.2 Network Performance None
7.3 WRFD-010654 128 HSDPA Users per Cell 7.3.1 System Capacity This feature increases the downlink load but helps to admit more HSDPA users.In ideal conditions, a single cell can support a maximum of 128 HSDPA UEs simultaneously.
7.3.2 Network Performance None
7.4 WRFD-030010 CQI Adjustment Based on Dynamic BLER Target 7.4.1 System Capacity This feature increases the downlink throughput for HSDPA users and cells by up to 10%.
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7.4.2 Network Performance Calculation for adjusting the CQI increases the downlink load of the NodeB DSP slightly.
7.5 WRFD-140221 HSDPA Scheduling based on UE Location 7.5.1 System Capacity This feature gives more scheduling opportunities to UEs closer to the NodeB and increases the downlink overall throughput of the cell. Cell throughput gains relate to UEs' CQIs.
7.5.2 Network Performance With this feature, HSDPA UEs at cell edges have fewer scheduling opportunities and lower throughput. If GBRs are not configured for BE services, HSDPA UEs at cell edges may have to wait a long time before they have scheduling opportunities. As a result, traffic radio bearers (TRBs) are more likely to reset and the call drop rate increases. The magnitude of this impact depends on factors such as UE location distribution and service distribution in the cell. It is recommended that GBRs be configured for BE services to ensure network performance.
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8 Engineering Guidelines 8.1 WRFD-010610 HSDPA Introduction Package 8.1.1 When to Use HSDPA Introduction Package HSDPA can significantly increase the downlink peak rate per user, shorten the round trip delay, and expand the system capacity. This feature package provides the basic functions of HSDPA to meet the requirements for test or trial operation of HSDPA services.
8.1.2 Information to Be Collected None.
8.1.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-010610 HSDPA Introduction Package. (This feature cannot be configured using the CME.)
Prerequisites
Dependencies on Hardware − NDLP − The
and NBBI in the NodeB do not support this feature.
UE is HSDPA-capable.
Dependencies on Other Features HSDPA provides a number of methods to increase system throughput. It has to coordinate with other features, such as admission control, load control, and mobility management.
License The license "High Speed Downlink Packet Access" on the BSC6900 side has been activated. For details about how to activate the license, see License Management Feature Parameter Description.
Procedure
Activation Procedure
1. Run the BSC6900 MML command ADD UCELLHSDPA to set HSDPA-related parameters based on the network plan. 2. Run the BSC6900 MML command ACT UCELLHSDPA to activate this feature. 3. Configure Iub transport for HSDPA. − In
an ATM network:
a. b. c.
d.
− In
Run the BSC6900 MML command ADD ATMTRF to configure new records of ATM traffic based on network planning requirements. Run the BSC6900 MML command LST TRMMAP to query the transmission resource mapping. Run the BSC6900 MML command ADD AAL2PATH to set associated parameters according to the network plan. TX traffic record index and RX traffic record index of the AAL2 path to be added must be the same as those set in the ADD ATMTRF command. In addition, AAL2 Path Type should be set according to the mapping between service types and AAL paths. Run the NodeB MML command ADD AAL2PATH to configure an AAL2 path for HSDPA based on network planning requirements.
an IP network:
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8 Engineering Guidelines
Run the BSC6900 MML command LST ADJMAP to query whether resource management mapping is configured for the adjacent node. If configured, check the TRMMAP index of the adjacent node. If not configured, run the BSC6900 MML command LST TRMMAP to query the default TRMMAP ID used by the adjacent node based on the settings of Interface Type and Transport Type. For example, if Interface Type is set to Iub Interface, then TRMMAP ID is 1.
b.
Run the BSC6900 MML command LST TRMMAP to check whether the IP path mapping to the HSDPA service is configured according to the TRMMAP ID used by the adjacent node. If configured, no further action is required. If not configured, run the BSC6900 MML command ADD IPPATH to configure the IP path mapping to the HSDPA service.
To ensure that HSDPA services can be set up successfully, HSDPA services must be mapped to the corresponding AAL2 paths or IP paths. To avoid the affect on ongoing services, you can add new AAL2 paths or IP paths.
Verification Procedure Run the BSC6900 MML command DSP UCELL to check whether this feature is activated. If HSDPA Operational State is set to Enabled, this feature has been activated.
Deactivation Procedure
1. Run the BSC6900 MML command DEA UCELLHSDPA to deactivate this feature. 2. Run the BSC6900 MML command DSP UCELL to check whether the HSDPA feature is deactivated. If HSDPA Operational State is set to Disabled, this feature has been deactivated.
Example // Setting HSDPA-related parameters ADD UCELLHSDPA: CellId=3000, AllocCodeMode=Automatic, HsPdschMaxCodeNum=4, HsPdschMinCodeNum=1, CodeAdjForHsdpaSwitch=ON; //Activating HSDPA Introduction Package ACT UCELLHSDPA: CellId=3000; //Configuring Iub transport for HSDPA //ATM network ADD ATMTRF: TRFX=118, ST=RTVBR, UT=KBIT/S, PCR=5150, SCR=5149, REMARK="5M-for-HSDPA"; ADD AAL2PATH: ANI=10, PATHID=2, CARRYT=IMA, CARRYF=1, CARRYSN=0, CARRYIMAGRPN=1, RSCGRPFLAG=NO, VPI=13, VCI=71, TXTRFX=118, RXTRFX=118, AAL2PATHT=HSPA; //Adding an AAL2 path ADD AAL2PATH: PATHID=2, SN=12, SBT=BASE_BOARD, PT=IMA, VPI=13, VCI=71, ST=RTVBR, PCR=5150, SCR=5149, RCR=5150, NT=LOCAL, PAT=H_NRT; //IP network ADD IPPATH: ANI=0, PATHID=1, ITFT=IUB, TRANST=IP,PATHT=BE, IPADDR="80.1.1.1", PEERIPADDR="10.161.0.1", PEERMASK="255.255.255.0", TXBW=1000, RXBW=1000; //Verifying HSDPA Introduction Package DSP UCELL: DSPT=BYCELL, CellId=3000, LstFormat=VERTICAL; //Deactivating HSDPA Introduction Package DEA UCELLHSDPA: CellId=3000; DSP UCELL: DSPT=BYCELL, CellId=3000, LstFormat=VERTICAL;
8.1.4 Performance Monitoring There are two methods to monitor the performance of HSDPA. Issue 04 (2013-05-10)
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Checking the values of the counters VS.HSDPA.UE.Mean.Cell and VS.HSDPA.UE.Max.Cell If both counter values are greater than 0, the feature has taken effect.
Counter Name
NE
Counter Description
VS.HSDPA.UE.Mean.Cell
RNC
Average Number of HSDPA UEs in a Cell
VS.HSDPA.UE.Max.Cell
RNC
Maximum Number of HSDPA UEs in a Cell
Checking the downlink throughput of a cell The feature has taken effect if the sum of the following counters increases.
Counter Name
NE
Counter Description
VS.SRNCIubBytesPSR99C onv.Tx
RNC
Number of DL Bytes of PS Conversational Services over Iub DCH for Cell
VS.SRNCIubBytesPSR99S tr.Tx
RNC
Number of DL Bytes of PS R99 Streaming Services over Iub DCH for Cell
VS.SRNCIubBytesPSR99I nt.Tx
RNC
Number of DL Bytes of PS R99 Interactive Services over Iub DCH for Cell
VS.SRNCIubBytesPSR99B kg.Tx
RNC
Number of DL Bytes of PS R99 Background Services over Iub DCH for Cell
VS.SRNCIubBytesHSDPA. Tx
RNC
Number of DL Bytes over Iub HSDSCH for Cell
VS.SRNCIubBytesCSConv .Tx
RNC
Number of DL Bytes of CS Conversational Services over Iub DCH for Cell
8.2 WRFD-01061001 15 Codes per Cell 8.2.1 When to Use 15 Codes per Cell None.
8.2.2 Information to Be Collected None.
8.2.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-01061001 15 Codes per Cell.
Prerequisites
Dependencies on Hardware This feature does not have any special requirements for hardware.
Dependencies on Other Features
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The configurations of the features on which this feature depends are complete. This feature depends on the feature WRFD-010610 HSDPA Introduction Package.
License The license "HSDPA RRM package 1" and "HSDPA function" on the NodeB side has been activated. For details about how to activate the license, see License Management Feature Parameter Description.
Procedure
Activation Procedure
1. Run the BSC6900 MML command MOD UCELLHSDPA (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell HSDPA Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches) to set Code Number for HS-SCCH to 1. The BSC6900 MML command MOD UCELLHSDPA (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell HSDPA Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches) fails to be executed when HSDPA is activated. Therefore, run the BSC6900 MML command DEA UCELLHSDPA (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell HSDPA Parameters. Set ACTSTATUS to Deactivated; CME batch configuration: No supported) to deactivate HSDPA before configuring this feature and run the BSC6900 MML command ACT UCELLHSDPA (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell HSDPA Parameters. Set ACTSTATUS to Activated; CME batch configuration: No supported) to reactivate HSDPA after configuring this feature. The BSC6900 MML command MOD UCELLHSDPA (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell HSDPA Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches) fails to be executed when CELL-FACH enhancement is activated. Therefore, run the BSC6900 MML command DEA UCELLEFACH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Enhanced FACH parameters. Set Validation indication to Deactivated; CME batch configuration: No supported) to deactivate enhanced CELL-FACH before configuring this feature and Run the BSC6900 MML command ACT UCELLEFACH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Enhanced FACH parameters. Set Validation indication to Activated; CME batch configuration: No supported) to reactivate enhanced CELL-FACH after configuring this feature. By default, the number of HS-SCCH codes for each cell is 4. If the default number is used, the HS-PDSCH can use only 14 SF16 codes. To enable the HS-PDSCH to use all 15 SF16 codes, run the BSC6900 MML command MOD UCELLHSDPA (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell HSDPA Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches) to set the value of Code Number for HS-SCCH to 1.
2. Run the BSC6900 MML command MOD UCELLHSDPA (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell HSDPA Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches) to set Allocate Code Mode to Manual(Manual) and Code Number for HS-PDSCH to 15.
Verification Procedure
1. Initialize UMTS monitoring on the BSC6900 LMT, as shown in Figure 6-1. Click Submit. A real-time monitoring window is displayed.
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Figure 8-1 Cell Performance Monitoring
2. Check whether 15 SF16 codes are occupied by the HS-PDSCH in the Cell Performance Monitoring window. Expected result: The HS-PDSCH occupies 15 SF16 codes.
Deactivation Procedure This feature does not need to be deactivated.
Example //Verifying 15 Codes per Cell MOD UCELLHSDPA: CellId=1, HsScchCodeNum=1; MOD UCELLHSDPA: CellId=1, AllocCodeMode=Manual, HsPdschCodeNum=15;
8.3 WRFD-01061018 Time and HS-PDSCH Codes Multiplex 8.3.1 When to Use Time and HS-PDSCH Codes Multiplex None.
8.3.2 Information to Be Collected None.
8.3.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-01061018 Time and HS-PDSCH Codes Multiplex.
Prerequisites
Dependencies on Hardware This feature does not have any special requirements for hardware.
Dependencies on Other Features The configurations of the features on which this feature depends are complete. This feature depends on the feature WRFD-010610 HSDPA Introduction Package.
License The license "HSDPA RRM package 1" and "HSDPA function" on the NodeB side has been activated. For details about how to activate the license, see License Management Feature Parameter. Description.
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Procedure
Activation Procedure This feature does not need to be activated.
Verification Procedure This feature does not need to be verified.
Deactivation Procedure This feature does not need to be deactivated.
8.4 WRFD-01061009 HSDPA H-ARQ & Scheduling (MAX C/I, RR, and PF) 8.4.1 When to Use HSDPA H-ARQ & Scheduling (MAX C/I, RR, and PF None.
8.4.2 Information to Be Collected None.
8.4.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-01061009 HSDPA H-ARQ & Scheduling (MAX C/I, RR, and PF).
Prerequisites
Dependencies on Hardware This feature does not depend on the hardware.
Dependencies on Other Features The configurations of the features on which this feature depends are complete. This feature depends on the feature WRFD-010610 HSDPA Introduction Package.
License The license "HSDPA RRM package 1" and "HSDPA function" on the NodeB side has been activated. For details about how to activate the license, see License Management Feature Parameter Description.
Procedure
Activation Procedure
HSDPA H-ARQ is activated automatically without any configuration. This section describes how to set Max C/I, RR, and PF scheduling algorithms. For details on how to set the EPF scheduling algorithm, see the description of the feature WRFD-01061103 Scheduling based on EPF and GBR.
1. Run the NodeB MML command SET MACHSPARA (CME single configuration: NodeB Configuration Express > IUB_NodeB > Radio Layer > Locell Algorithm Parameters > MAC Parameters > MACHSPARA; CME batch modification center: Modifying Physical NodeB Parameters in Batches) to set the parameter Scheduling Method to MAXCI(Max C/I Algorithm), RR(Round Robin Algorithm) or PF(PF Algorithm).
Verification Procedure
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1. Run the NodeB MML command LST MACHSPARA to query the settings of the parameter Scheduling Method.
Deactivation Procedure This feature does not need to be deactivated.
Example //Activation procedure SET MACHSPARA: LOCELL=0, SM=MAXCI; //Verification procedure LST MACHSPARA: LOCELL=0;
8.5 WRFD-01061005 HSDPA Static Code Allocation and RNC-Controlled Dynamic Code Allocation 8.5.1 When to Use HSDPA Static Code Allocation and RNC-Controlled Dynamic Code Allocation None.
8.5.2 Information to Be Collected None.
8.5.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-01061005 HSDPA Static Code Allocation and RNC-Controlled Dynamic Code Allocation.
Prerequisites
Dependencies on Hardware This feature does not depend on the hardware.
Dependencies on Other Features The feature WRFD-010610 HSDPA Introduction Package must be configured before this feature is activated.
License The license "HSDPA RRM package 1" and "HSDPA function" on the NodeB side has been activated. For details about how to activate the license, see License Management Feature Parameter Description.
Procedure
Activation Procedure Run the BSC6900 MML command MOD UCELLHSDPA (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell HSDPA Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches). In this step, set Allocate Code Mode to Manual or Automatic. − If
Allocate Code Mode is set to Manual, set Code Number for HS-PDSCH to specify the number of HS-PDSCH codes.
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− If
Allocate Code Mode is set to Automatic, set Code Max Number for HS-PDSCH to specify the maximum number of HS-PDSCH codes and set Code Min Number for HS-PDSCH to specify the minimum number of HS-PDSCH codes.
Verification Procedure
1. Run the BSC6900 MML command LST UCELLHSDPA to query code allocation mode. 2. On the BSC6900 LMT, click to display Cell Performance Monitoring. Set Monitor Item to Cell Code Tree Monitor and click Submit. The Cell Performance Monitoring tab page is displayed. 3. View the number of codes allocated to the HS-PDSCH in the cell. If Allocate Code Mode is set to Manual, the monitoring window of cell code tree usage shows that the number of codes allocated to the HS-PDSCH remains unchanged. If Allocate Code Mode is set to Automatic, the monitoring window of cell code tree usage shows that the number of codes allocated to the HS-PDSCH varies with service access requests in the cell. For example, the number of codes allocated to the HS-PDSCH increases with the increase of HSDPA access requests and decreases with the decrease of HSDPA access requests.
Deactivation Procedure This feature does not need to be deactivated.
Example //Activating HSDPA Static Code Allocation and RNC-Controlled Dynamic Code Allocation MOD UCELLHSDPA: CellId=11, AllocCodeMode=Manual, HsPdschCodeNum=5, HsScchCodeNum=4; MOD UCELLHSDPA: CellId=11, AllocCodeMode=Automatic, HsPdschMaxCodeNum=5, HsPdschMinCodeNum=1;
8.6 WRFD-01061010 HSDPA Flow Control 8.6.1 When to Use HSDPA Flow Control None.
8.6.2 Information to Be Collected None.
8.6.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-01061010 HSDPA Flow Control.
Prerequisites
Dependencies on Hardware This feature does not depend on the hardware.
Dependencies on Other Features The feature WRFD-010610 HSDPA Introduction Package must be configured before this feature is activated.
License The license "HSDPA RRM package 1" and "HSDPA function" on the NodeB side has been activated. For details about how to activate the license, see License Management Feature Parameter Description.
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Procedure
Activation Procedure
1. Run the NodeB MML command SET HSDPAFLOWCTRLPARA (CME single configuration: NodeB Configuration Express > IUB_NodeB > ATM Transport Layer > ATMPort > HSDPA Flow Control > HSDPA Flow Control Parameters; CME batch modification center: not supported) to set the parameter Flow Control Switch to enable the NodeB HSDPA flow control function. The adaptive flow control algorithm is recommended. There are four types of HSDPA flow control algorithm as follows: − When
Flow Control Switch is set to STATIC_BW_SHAPING, the NodeB does not adjust the available bandwidth for HSDPA users based on delay and packet loss on the Iub interface. Then, subtracting Iub bandwidth used by R99 from Iub bandwidth configured, the NodeB performs Iub shaping and distributes flow to HSDPA users.
− When
Flow Control Switch is set to DYNAMIC_BW_SHAPING, the NodeB adjusts the available bandwidth for HSDPA users based on delay and packet loss on the Iub interface. Then, considering the data rate on the air interface, the NodeB performs Iub shaping and distributes flow to HSDPA users.
− When
Flow Control Switch is set to NO_BW_SHAPING, the NodeB does not adjust the bandwidth based on delay and packet loss on the Iub interface. The NodeB reports the conditions about the air interface to the RNC, and then the RNC allocates the bandwidth.
− When
Flow Control Switch is set to BW_SHAPING_ONOFF_TOGGLE, the flow control policy for the ports of the NodeB is either DYNAMIC_BW_SHAPING or NO_BW_SHAPING in accordance with the congestion detection mechanism of the NodeB. This flow control algorithm is recommended.
Verification Procedure
1. Choose Monitor > UMTS Monitoring > Connection Performance Monitoring on the BSC6900 LMT. Create UL Throughput Bandwidth and DL Throughput Bandwidth tasks. 2. Assume that the current Iub bandwidth is 4 MHz and the bandwidth usage is 100%. Enable an HSDPA-capable UE1 to access the network and originate a PS service. Record the throughput of UE1. Expected result: The throughput of UE1 is 4 Mbps. 3. Enable an HSDPA-capable UE2 to access the network (with the same configuration as UE1) and originate a download service. Record the throughput of the two UEs. Expected result: The throughput of UE1 decreases after UE2 accesses the network. When the throughput of the two UEs is stable, the total bandwidth of the two UEs is 4 MHz. If user priority, service type and Security Parameter Index (SPI) of the two UEs are the same, the final ratio of the two UEs' throughput is 1:1.
Deactivation Procedure You can deactivate the current algorithm by selecting one of the other flow control algorithms.
Example //Activating HSDPA Flow Control and setting the flow control mode to adaptive flow control SET HSDPAFLOWCTRLPARA: SRN=0, SN=6, BEAR=ATM, SBT=BASE_BOARD, PT=IMA, PN=0, SWITCH= BW_SHAPING_ONOFF_TOGGLE, TD=2, DR=1, ITM=TERRESTRIAL;
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8.7 WRFD-01061006 HSDPA Mobility Management 8.7.1 When to Use HSDPA Mobility Management None.
8.7.2 Information to Be Collected None.
8.7.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-01061006 HSDPA Mobility Management.
Prerequisites
Dependencies on Hardware This feature does not have any special requirements for hardware.
Dependencies on Other Features The feature WRFD-010610 HSDPA Introduction Package must be configured before this feature is activated.
License The license "HSDPA RRM package 1" and "HSDPA function" on the NodeB side has been activated. For details about how to activate the license, see License Management Feature Parameter Description.
Procedure
Activation Procedure
The methods for activating intra-frequency, inter-frequency, and inter-RAT handovers are the same for HSDPA users and R99 users. For details on how to activate the WRFD-01061006 HSDPA Mobility Management feature, see chapter "Configuring Inter Frequency Load Balance" in Load Control Feature Parameter Description or see the following sections in Handover Feature Parameter Description:
− 13.4
WRFD-020301 Intra Frequency Hard Handover
− 13.8
WRFD-020302 Inter Frequency Hard Handover Based on Coverage
− 13.9
WRFD-020304 Inter Frequency Hard Handover Based on DL QoS
− 13.10
WRFD-020303 Inter-RAT Handover Based on Coverage
− 13.11
WRFD-020309 Inter-RAT Handover Based on DL QoS
− 13.16
WRFD-020305 Inter-RAT Handover Based on Service
− 13.17
WRFD-020306 Inter-RAT Handover Based on Load
Verification Procedure None
Deactivation Procedure This feature does not need to be deactivated.
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8.8 WRFD-01061002 HSDPA UE Category 1 to 28 8.8.1 When to Use HSDPA UE Category 1 to 28 None.
8.8.2 Information to Be Collected None.
8.8.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-01061002 HSDPA UE Category 1 to 28.
Prerequisites
Dependencies on Hardware This feature does not have any special requirements for hardware.
Dependencies on Other Features The configurations of the features on which this feature depends are complete. This feature depends on the feature WRFD-010610 HSDPA Introduction Package.
License The license "HSDPA RRM package 1" and "HSDPA function" on the NodeB side has been activated. For details about how to activate the license, see License Management Feature Parameter Description.
Procedure
Activation Procedure This feature does not need to be activated.
Verification Procedure This feature does not need to be verified.
Deactivation Procedure This feature does not need to be deactivated.
8.9 WRFD-010629 DL 16QAM Modulation 8.9.1 When to Use DL 16QAM Modulation None.
8.9.2 Information to Be Collected None.
8.9.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-010629 DL 16QAM Modulation.
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Prerequisites
Dependencies on Hardware − This − UE
feature does not depend on the hardware.
should support the demodulation of 16QAM.
Dependencies on Other Features WRFD-010610 HSDPA Introduction Package
License The license "HSDPA RRM package 1" and "HSDPA function" on the NodeB side has been activated. For details about how to activate the license, see License Management Feature Parameter Description.
Procedure
Activation Procedure
HSDPA Introduction Package must be activated before activating this feature. For the method of activating HSDPA Introduction Package, see the section "Configuring HSDPA Introduction Package."
1. Run the NodeB MML command SET MACHSPARA (CME single configuration: NodeB Configuration Express > IUB_NodeB > Radio Layer > Locell Algorithm Parameters > MAC Parameters > MACHSPARA; CME batch modification center: Modifying Physical NodeB Parameters in Batches). In this step, set 16QAM Switch to OPEN(open).
Verification Procedure
For the 16QAM modulation of the HSDPA UE, the NodeB license control item must be enabled. As defined in 3GPP 25.306, the UE in category 8 can support both QPSK and 16QAM modulation schemes. Only 16QAM modulation, however, enables the throughput of category 8 UE to reach 5 Mbit/s. Only in case of good environment quality of the channel, the throughput of category 8 UE can reach 5 Mbit/s.
Perform the following steps to check whether the download rate can reach 5 Mbit/s. 1. Use the UE to start a PS interactive service of DL 7200 kbit/s. The PS service is carried on the HS-DSCH. The UE keeps in Cell-DCH state. 2. Start FTP (10 threads) to download given files, which are larger than 1 GB. By monitoring the DL throughput and bandwidth, you find that the PS downloading service is normal and the bit rate is higher than 5 Mbit/s.
Deactivation Procedure
1. Run the NodeB MML command SET MACHSPARA (CME single configuration: NodeB Configuration Express > IUB_NodeB > Radio Layer > Locell Algorithm Parameters > MAC Parameters > MACHSPARA; CME batch modification center: Modifying Physical NodeB Parameters in Batches). In this step, set 16QAM Switch to CLOSE(close).
Example //Activating procedure SET MACHSPARA: CME16QAMSW=OPEN; //Deactivating procedure SET MACHSPARA: CME16QAMSW=CLOSE;
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8.10 WRFD-010631 Dynamic Code Allocation Based on NodeB 8.10.1 When to Use Dynamic Code Allocation Based on NodeB None.
8.10.2 Information to Be Collected None.
8.10.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-010631 Dynamic Code Allocation Based on NodeB.
Prerequisites
Dependencies on Hardware This feature does not depend on the hardware.
Dependencies on Other Features WRFD-010610 HSDPA Introduction Package
License The license "HSDPA RRM package 1" on the NodeB side has been activated. For details about how to activate the license, see License Management Feature Parameter Description.
Procedure
Activation Procedure
HSDPA Introduction Package must be activated before activating this feature. For the method of activating HSDPA Introduction Package, see the section "Configuring HSDPA Introduction Package."
1. Run the NodeB MML command SET MACHSPARA (CME single configuration: NodeB Configuration Express > IUB_NodeB > Radio Layer > Locell Algorithm Parameters > MAC Parameters > MACHSPARA; CME batch modification center: Modifying Physical NodeB Parameters in Batches). In this step, set Dynamic Code Switch to OPEN(open).
Verification Procedure
1. Run the NodeB MML command SET MACHSPARA. In this step, set Dynamic Code Switch to CLOSE(close). 2. Run the BSC6900 MML command MOD UCELLHSDPA. 3. set Allocate Code Mode to Manual. 4. set Code Number for HS-PDSCH to 5. 5. Use a UE that belongs to category 8 or is capable of higher HSDPA performance to download 200 MB files from the FTP server in the serving cell. 6. Select Service > Trace Management > Interface Trace Task > User from the navigation tree in Maintenance tab on NodeB LMT, select (DL)Hsdpa User Enhanced Schedule Data message, as shown in Figure 8-2.
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Figure 8-2 User Tracing
7. To query the ucMaxPdschCodeNum is 5, as shown in Figure 6-3. Figure 8-3 Message Browser
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8. Run the NodeB MML command SET MACHSPARA. In this step, set Dynamic Code Switch to OPEN(open). 9. Trace (DL)Hsdpa User Enhanced Schedule Data message, ucMaxPdschCodeNum is less than the value of 5, it indicates the feature has been enabled, as shown in Figure 6-4. Figure 8-4 Message Browser
Deactivation Procedure
1. Run the NodeB MML command SET MACHSPARA (CME single configuration: NodeB Configuration Express > IUB_NodeB > Radio Layer > Locell Algorithm Parameters > MAC Parameters > MACHSPARA; CME batch modification center: Modifying Physical NodeB Parameters in Batches). In this step, set Dynamic Code Switch to CLOSE(close).
Example //Activation procedure //Operations on the NodeB side SET MACHSPARA: DYNCODESW=OPEN; //Verification procedure //Operations on the NodeB side SET MACHSPARA: DYNCODESW=CLOSE; //Operations on the BSC6900 side MOD UCELLHSDPA: CellId=0, AllocCodeMode=Manual, HsPdschCodeNum=5; //Operations on the NodeB side SET MACHSPARA: DYNCODESW=OPEN; //Deactivation procedure //Operations on the NodeB side SET MACHSPARA: DYNCODESW=CLOSE;
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8.11 WRFD-010611 HSDPA Enhanced Package 8.11.1 When to Use HSDPA Enhanced Package None.
8.11.2 Information to Be Collected None.
8.11.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-010611 HSDPA Enhanced Package.
Prerequisites
Dependencies on Hardware − This − UE
feature does not have any special requirements for hardware.
should support the functions connected with HSDPA Enhanced package.
Dependencies on Other Features The configurations of the features on which this feature depends are complete. This feature depends on the feature WRFD-010610 HSDPA Introduction Package.
License This feature is not under license control.
Procedure For details on how to activate, verify, and deactivate the WRFD-010611 HSDPA Enhanced Package feature, see the following:
WRFD-01061103 Scheduling based on EPF and GBR
4.4 Fast State Transition in State Transition Feature Parameter Description
6.1 WRFD-01061112 HSDPA DRD in Directed Retry Decision Feature Parameter Description
HS-DPCCH Preamble Support does not need to be activated, verified, or deactivated.
8.12 WRFD-01061103 Scheduling based on EPF and GBR 8.12.1 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-01061103 Scheduling based on EPF and GBR.
Prerequisites
Dependencies on Hardware This feature does not have any special requirements for hardware.
Dependencies on Other Features WRFD-010610 HSDPA Introduction Package
License This feature is not under license control.
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Procedure
Activation Procedure Run the NodeB MML command SET MACHSPARA (CME single configuration: NodeB Configuration Express > IUB_NodeB > Radio Layer > Locell Algorithm Parameters > MAC Parameters > MACHSPARA; CME batch modification center: Modifying Physical NodeB Parameters in Batches). In this step, set Scheduling Method to EPF(Enhanced PF).
Verification Procedure Run the NodeB MML command LST MACHSPARA to check that Scheduling Method is set to EPF.
Deactivation Procedure Run the NodeB MML command SET MACHSPARA (CME single configuration: NodeB Configuration Express > IUB_NodeB > Radio Layer > Locell Algorithm Parameters > MAC Parameters > MACHSPARA; CME batch modification center: Modifying Physical NodeB Parameters in Batches). In this step, set Scheduling Method to an option other than EPF(Enhanced PF).
Example //Activation procedure SET MACHSPARA: SM=EPF; //Verification procedure LST MACHSPARA; //Deactivation procedure SET MACHSPARA: SM=PF;
8.13 WRFD-010653 96 HSDPA Users per Cell 8.13.1 When to Use 96 HSDPA Users per Cell None.
8.13.2 Information to Be Collected None.
8.13.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-010653 96 HSDPA Users per Cell.
Prerequisites
Dependencies on Hardware − The
BTS3812E and BTS3812AE must be configured with the EBBI, EBOI, EULP, and EULPd.
− The
BBU3806 must be configured with the EBBC or EBBCd.
− The
BBU3900 must be configured with the WBBPb or WBBPd.
− UEs
must support the CPC-DTX/DRXfunction.
Dependencies on Other Features The following features have been configured before this feature is activated: WRFD-010623 64 HSDPA Users per Cell, WRFD-010639 96 HSUPA Users per Cell and WRFD-010686 CPC-DTX/DRX.
License
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The license "96 HSDPA Users per Cell" on the BSC6900 side has been activated. For details about how to activate the license, see License Management Feature Parameter Description.
Procedure
Activation Procedure
1. Run the BSC6900 MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches; CME batch modification center: Modifying UMTS Cell Parameters in Batches). In this step, deselect the HSDPA_UU_ADCTRL(HSDPA UU Load Admission Control Algorithm) and HSUPA_UU_ADCTRL(HSUPA UU Load Admission Control Algorithm) check boxes under the parameter Cell CAC algorithm switch, and select the DTX_DRX(Cell DTX_DRX Function Switch) check box under the parameter Cell Hspa Plus function switch. 2. Run the BSC6900 MML command SET UCORRMALGOSWITCH (CME single configuration: UMTS Radio Global Configuration Express > Connection_Oriented RRM Switch Configuration > Connection Oriented Algorithm Switches; CME batch modification center: Modifying RNC Parameters in Batches) to deselect DRA_HSDPA_STATE_TRANS_SWITCH and DRA_HSUPA_STATE_TRANS_SWITCH from the Dynamic Resource Allocation Switch list to disable HSPA state transition. 3. Run the BSC6900 MML command SET UFRCCHLTYPEPARA (CME single configuration: UMTS Radio Global Configuration Express > Basic Resource Control Parameter Configuration > Channel Type Parameters; CME batch modification center: Modifying RNC Parameters in Batches) to set Type of Channel Preferably Carrying Signaling RB to HSPA(UL_EDCH,DL_HSDSCH) and Effective Flag of Signaling RB Channel Type to TRUE. 4. Run the BSC6900 MML command MOD UCELLHSUPA (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Configuration of HSUPA in Cell; CME batch modification center: Modifying UMTS Cell Parameters in Batches) to set Code Number for E-AGCH and Code Number for E-RGCH/E-HICH to appropriate values. 5. Run the BSC6900 MML command MOD UCELLCAC (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Oriented CAC Algorithm Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches) to stop reserving uplink and downlink credit resources by setting UL handover credit reserved SF and DL handover credit and code reserved SF to SFOFF(SFOFF), and setting Maximum HSDPA user number to 96.
Verification Procedure
1. On the BSC6900 LMT, click Monitor. Then, double-click Cell Performance Monitoring in the Monitor Navigation Tree pane. In the displayed Cell Performance Monitoring dialog box, set Monitor Item to Cell User Number. 2. Use UEs to access the cell successively and then establish PS services, for example, download files through FTP. Expected result: Each UE establishes PS services successfully. − If
the number of UEs is less than or equal to 96, uplink services are carried on HSUPA channels and downlink services are carried on HSDPA channels.
− If
the number of UEs is greater than 96, HSPA services of the excessive UEs are carried on R99 channels.
3. Check the maximum number of users through the counter VS.HSDPA.UE.Max.Cell on the M2000. The 96 HSDPA users referred to in this feature are of the SRB Over HSPA type. The 96 HSDPA UEs must support the CPC-DTX/DRX function.
Deactivation Procedure This feature does not need to be deactivated.
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Example /*Activating 96 HSDPA Users per Cell*/ //Disabling the admission control function in an HSPA cell on the Uu interface and enabling the DTX-DRX function MOD UCELLALGOSWITCH: CellId=111, NBMCacAlgoSwitch=HSDPA_UU_ADCTRL-0&HSUPA_UU_ADCTRL-0, HspaPlusSwitch=DTX_DRX-1; //Disabling HSPA state transition SET UCORRMALGOSWITCH: DraSwitch=DRA_HSDPA_STATE_TRANS_SWITCH-0&DRA_HSUPA_STATE_TRANS_SWITCH-0; //Enabling SRB over HSPA SET UFRCCHLTYPEPARA: SrbChlType=HSPA, SrbChlTypeRrcEffectFlag=TRUE; //Allocating code resources to E-AGCHs and E-RGCHs MOD UCELLHSUPA: CellId=111, EagchCodeNum=1, ErgchEhichCodeNum=5; //Stop reserving uplink and downlink credit resources and setting the maximum number of HSDPA users to 96 MOD UCELLCAC: CellId=111, MaxHsdpaUserNum=96, UlHoCeResvSf=SFOFF, DlHoCeCodeResvSf=SFOFF;
8.14 WRFD-010654 128 HSDPA Users per Cell 8.14.1 When to Use 128 HSDPA Users per Cell This feature is recommended for cells with a large number of low-rate users.
8.14.2 Information to Be Collected None.
8.14.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-010654 128 HSDPA Users per Cell.
Prerequisites
Dependencies on Hardware The feature is available only for 3900 series base stations. 3900 series base stations (except BTS3902E) must be configured with the WBBPd2 or WBBPd3. UEs must support the CPC-DTX/DRX.
Dependencies on Other Features The following features must have been configured before this feature is activated: - WRFD-010653 96 HSDPA Users per Cell - WRFD-010670 128 HSUPA Users per Cell - WRFD-010686 CPC-DTX/DRX
License The license "128 HSDPA Users per Cell" on the BSC6900 side has been activated. For details about how to activate the license, see License Management Feature Parameter Description. Procedure
Activation Procedure
1. Run the BSC6900 MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches; CME batch modification center: Modifying UMTS Cell Parameters in Batches). In this step, deselect the HSDPA_UU_ADCTRL(HSDPA UU Load Admission Control Algorithm) and
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HSUPA_UU_ADCTRL(HSUPA UU Load Admission Control Algorithm) check boxes under the parameter Cell CAC algorithm switch, and select the DTX_DRX(Cell DTX_DRX Function Switch) check box under the parameter Cell Hspa Plus function switch. 2. Run the BSC6900 MML command SET UCORRMALGOSWITCH (CME single configuration: UMTS Radio Global Configuration Express > Connection_Oriented RRM Switch Configuration > Connection Oriented Algorithm Switches; CME batch modification center: Modifying RNC Parameters in Batches) to disable HSPA state transition. 3. Run the BSC6900 MML command SET UFRCCHLTYPEPARA (CME single configuration: UMTS Radio Global Configuration Express > Basic Resource Control Parameter Configuration > Channel Type Parameters; CME batch modification center: Modifying RNC Parameters in Batches) to enable SRB over HSPA. 4. Run the BSC6900 MML command MOD UCELLHSUPA (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Configuration of HSUPA in Cell; CME batch modification center: Modifying UMTS Cell Parameters in Batches) to allocate code resources to E-AGCHs and E-RGCHs. 5. Run the BSC6900 MML command MOD UCELLCAC (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Oriented CAC Algorithm Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches) to stop reserving uplink and downlink credit resources and set the maximum number of HSDPA users per cell to 128.
Verification Procedure
1. On the BSC6900 LMT, click Monitor. Then, double-click Cell Performance Monitoring in the Monitor Navigation Tree pane. In the displayed Cell Performance Monitoring dialog box, set Monitor Item to Cell User Number. 2. Use UEs to access the cell successively and then establish PS services, for example, download files through FTP. Expected result: Each UE establishes PS services successfully. − If
the number of UEs is less than or equal to 128, uplink services are carried on HSUPA channels and downlink services are carried on HSDPA channels.
− If
the number of UEs is greater than 128, HSPA services of the excessive UEs are carried on R99 channels.
3. Check the maximum number of users through the counter VS.HSDPA.UE.Max.Cell on the M2000.
The 128 HSDPA users referred to in this feature are of the SRB Over HSPA type. The 128 HSDPA UEs must support the CPC-DTX/DRX.
Deactivation Procedure This feature does not need to be deactivated.
Example /*Activating 128 HSDPA Users per Cell*/ //Disabling the admission control function in an HSPA cell on the Uu interface and enabling the DTX-DRX function MOD UCELLALGOSWITCH: CellId=111, NBMCacAlgoSwitch=HSDPA_UU_ADCTRL-0&HSUPA_UU_ADCTRL-0, HspaPlusSwitch=DTX_DRX-1; //Disabling HSPA state transition SET UCORRMALGOSWITCH: DraSwitch=DRA_HSDPA_STATE_TRANS_SWITCH-0&DRA_HSUPA_STATE_TRANS_SWITCH-0; //Enabling SRB over HSPA SET UFRCCHLTYPEPARA: SrbChlType=HSPA, SrbChlTypeRrcEffectFlag=TRUE; //Allocating code resources to E-AGCHs and E-RGCHs MOD UCELLHSUPA: CellId=111, EagchCodeNum=1, ErgchEhichCodeNum=7;
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//Stop reserving uplink and downlink credit resources and setting the maximum number of HSDPA users to 128 MOD UCELLCAC: CellId=111, MaxHsdpaUserNum=128, UlHoCeResvSf=SFOFF, DlHoCeCodeResvSf=SFOFF;
8.15 WRFD-030010 CQI Adjustment Based on Dynamic BLER Target 8.15.1 When to Use CQI Adjustment Based on Dynamic BLER Target This feature is recommended for all scenarios. It helps increase cell downlink throughput by up to 10%. It has no adverse impact on network performance. This feature is not recommended if operators request a fixed target block error rate (BLER).
8.15.2 Information to Be Collected Check whether operators have requested a fixed target BLER.
8.15.3 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-030010 CQI Adjustment Based on Dynamic BLER Target.
Prerequisites
Dependencies on Hardware − The
BTS3812E and BTS3812AE are configured with the EBBI, EBOI, or EDLP board.
− The
BBU3806 is configured with the EBBC or EBBCd board.
− The
BBU3900 is configured with the WBBPb or WBBPd board.
Dependencies on Other Features − WRFD-010610
HSDPA Introduction Package
License − The
license controlling this feature has been activated. For details a how to activate the license, see License Management Feature Parameter Description. For details about license items, see License Management Feature Parameter Description.
Context With this feature, the NodeB can dynamically select the optimum BLER target value based on the channel quality fluctuation of HSDPA users. The NodeB then adjusts the Channel Quality Indicator (CQI) accordingly, improving user throughput and cell throughput.
Procedure
Activation Procedure Run the NodeB MML command SET MACHSPARA (CME single configuration: Introduction to the Configuration Express for Iub Interfaces; CME batch modification center: Modifying Physical NodeB Parameters in Batches). In this step, set CQI Adjust Algorithm Switch of non-Conversational Service to CQI_ADJ_BY_DYN_BLER(CQI Adjusted by Dynamic BLER).
Verification Procedure Run the NodeB MML command LST MACHSPARA. In this step, check that CQI Adjust Algorithm Switch of non-Conversational Service is set to CQI_ADJ_BY_DYN_BLER.
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Deactivation Procedure Run the NodeB MML command SET MACHSPARA (CME single configuration: Introduction to the Configuration Express for Iub Interfaces; CME batch modification center: Modifying Physical NodeB Parameters in Batches). In this step, set CQI Adjust Algorithm Switch of non-Conversational Service to NO_CQI_ADJ(Not CQI Adjust Algorithm).
----End
Example //Activating CQI Adjustment Based on Dynamic BLER Target SET MACHSPARA: LOCELL=0, CQIADJALGOFNONCON=CQI_ADJ_BY_DYN_BLER; //Verifying CQI Adjustment Based on Dynamic BLER Target LST MACHSPARA: LOCELL=0; //Deactivating CQI Adjustment Based on Dynamic BLER Target SET MACHSPARA: CQIADJALGOFNONCON=NO_CQI_ADJ;
8.15.4 Feature Monitoring This feature helps increase cell throughput. You can query the values of the following counters to track changes in cell throughput:
VS.HSDPA.MeanChThroughput: an RNC counter that measures the average downlink throughput of individual MAC-d flows for HSDPA in a cell
VS.DataOutput.Mean: a NodeB counter that measures the average cell throughput at the MAC-hs/MAC-ehs layer within a measurement period
The values of the preceding counters increase after this feature is activated. Note that gains brought by this feature vary in different scenarios.
8.16 WRFD-140221 HSDPA Scheduling based on UE Location 8.16.1 When to Use HSDPA Scheduling based on UE Location If telecom operators intend to give up some equity among UEs for higher HSDPA cell throughput, enable this feature for parts of or the entire network.
8.16.2 Feature Deployment This section describes how to activate, verify, and deactivate the optional feature WRFD-140221 HSDPA Scheduling Based on UE Location.
Prerequisites
Dependencies on BSC6900 Hardware − This
feature does not depend on the BSC6900 hardware.
Dependencies on NodeB Hardware − All
3900 series base stations support this feature. To support this feature, the 3900 series base stations must be configured with the WBBPb, WBBPd or WBBPf board.
− All
DBS3800 series base stations support this feature. To support this feature, the DBS3800 series base stations must be configured with the EBBC or EBBCd board.
− The
BTS3812E/BTS3812A/BTS3812AE supports this feature. To support this feature, the BTS3812E/BTS3812A/BTS3812AE must be configured with the EBBI, EDLP or EBOI board.
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feature depends on the following features:
− WRFD-010610
HSDPA Introduction Package
− WRFD-010611
HSDPA Enhanced Package
License The license controlling this feature has been activated. For details about the license items and how to activate the license, see License Management Feature Parameter Description.
Others Prerequisites − As
recommended, GBRs have been configured on the RNC for all BE services.
Context
Developed on the basis of the EPF algorithm, this feature considers UE locations as the criterion for adjusting HSDPA scheduling weights. This feature gives more scheduling opportunities to UEs close to the NodeB and increases the cell throughput on the downlink.
Precautions − With
this feature, HSDPA UEs at cell edges have fewer scheduling opportunities and the cell throughput at cell edges drops. If GBRs are not configured for BE services, HSDPA UEs at cell edges may have to wait a long time before they can get scheduling opportunities. As a result, traffic radio bearers (TRBs) are more likely to reset and the call drop rate increases. The magnitude of this impact depends on factors such as UE location distribution and service distribution in the cell. It is recommended that GBRs be configured for BE services to ensure network performance.
Procedure
Activation Procedure Run the NodeB MML command SET MACHSPARA (CME single configuration: Introduction to the Configuration Express for Iub Interfaces; CME batch modification center: Modifying Physical NodeB Parameters in Batches). In this step, set Scheduling Method to EPF_LOC(Location based EPF) and set Location Weight.
Verification Procedure Run the NodeB MML command LST MACHSPARA. If the command output shows that the value of Scheduling Method is EPF_LOC(Location based EPF), this feature has been activated for the cell.
Deactivation Procedure Run the NodeB MML command SET MACHSPARA (CME single configuration: introduction to the Configuration Express for Iub Interfaces; CME batch modification center: Modifying Physical NodeB Parameters in Batches). In this step, set Scheduling Method to a value except EPF_LOC(Location based EPF).
----End
Example //Activation procedure SET MACHSPARA: LOCELL=1, SM=EPF_LOC, LOCWEIGHT=1; //Deactivation procedure SET MACHSPARA: LOCELL=1, SM=EPF;
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8.16.3 Performance Optimization Performance Monitoring To monitor the effects of this feature, perform the following steps: Step 1 Before activating this feature for a cell, record the cell throughput of HSDPA according to the following formula: ∑VS.DataOutput.Mean / ∑(VS.DataTtiRatio.Mean - VS.HSDPA.InactiveDataTtiRation.Mean) Here are the description of related counters in NodeB: − VS.DataOutput.Mean:
the average cell throughput at the MAC-hs/MAC-ehs layer within a
measurement period − VS.DataTtiRatio.Mean:
ratio of the time when at least one HSDPA user has data to transmit in the queue buffer within a measurement period
− VS.HSDPA.InactiveDataTtiRatio.Mean:
average ratio of the time when at least one HSDPA user has data to transmit in the buffer but no HSDPA user transmits data at the physical layer within a measurement period
Step 2 Verify whether the value of the cell throughput of HSDPA is greater after this feature is activated. How much the value of cell throughput of HSDPA increase depends on factors such as UE distribution and the service model. This feature applies to the scenario of continuous downlink data transmission, it cannot show gains if there is no insufficient data sources.
Parameter Optimization After the EPF_LOC scheduling algorithm is enabled, the value of the LOCWEIGHT parameter affects the cell throughput and the degree to which UEs are differentiated from each other. A larger value for this parameter means that UE locations weigh more in scheduling. This gives more scheduling opportunities to UEs closer to the NodeB, increases the cell throughput, and decreases the throughput at cell edges. In this case, to ensure equity among UEs, set the LOCWEIGHT parameter to a small value; to maximize the cell throughput while ensuring a GBR for UEs at cell edges, set the LOCWEIGHT parameter to a large value.
8.17 HSDPA Remaining Power Appending 8.17.1 When to Use HSDPA Remaining Power Appending The HSDPA remaining power appending algorithm applies to scenarios where network KPIs are better than the Acceptance Criterion (APC) and there are a certain number of remaining power resources. Network KPIs refer to the CS call drop rate, PS call drop rate, CS RAB setup success rate, and PS RAB setup success rate. When the downlink load is light, the HSDPA remaining power appending algorithm helps decrease the downlink BLER and improve user experience. However, this algorithm increases the downlink load. When the downlink load becomes heavy, network KPIs are deteriorated. Therefore, the RESVERD3 parameter cannot be set to a too large value. The recommended value for this parameter is 4, which is equal to 1 dB.
When the value of the VS.DataTtiRatio.Mean counter for a cell is greater than 50%, for example, in densely populated urban areas, the HSDPA remaining power appending algorithm may decrease the CQI and cell throughput. Under this condition, the RESVERD3 parameter should be set to a value equal to or less than 4.
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When the value of the VS.DataTtiRatio.Mean counter for a cell is less than 10%, for example, in suburban areas, the RESVERD3 parameter can be set to a comparatively large value, for example, 12 (equal to 3 dB), to improve user experience.
8.17.2 Information to Be Collected Before feature deployment, operators need to collect the following information:
Network KPIs − CS
call drop rate
− PS
call drop rate
− CS
RAB setup success rate
− PS
RAB setup success rate
RNC counter − VS.MeanTCP
NodeB counters − VS.AckTotal − VS.NackTotal − VS.DtxTotal − VS.DataTtiRatio.Mean
8.17.3 Feature Deployment Prerequisites
Dependencies on Hardware None.
Dependencies on Other Features None.
License None.
Procedure
Activation Procedure Run the NodeB MML command SET LOCELLRSVP to set RESVERD3 to a non-zero value.
Verification Procedure Check the value of the RNC counter VS.MeanTCP for the following results: − The
value of this counter is less than 80% before this algorithm is enabled.
− The
value of this counter is increased by a value less than the value specified by the RESVERD3 parameter after this algorithm is enabled.
Then, the HSDPA Remaining Power Appending algorithm is effective. Alternatively, check the downlink BLER. If the downlink BLER is significantly decreased after this algorithm is enabled, this algorithm is effective. The downlink BLER can be calculated using the following formula: BLER = (VS.NackTotal + VS.DtxTotal)/(VS.AckTotal + VS.NackTotal + VS.DtxTotal)
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VS.AckTotal, VS.NackTotal, and VS.DtxTotal are NodeB counters.
Deactivation Procedure Run the NodeB MML command SET LOCELLRSVP to set RESVERD3 to 0.
Example //Activation procedure SET LOCELLRSVP: LOCELL=1, RESVERD3=1; //Deactivation procedure SET LOCELLRSVP: LOCELL=1, RESVERD3=0;
8.17.4 Performance Optimization If network KPIs are deteriorated or cannot meet the APC, decrease the value of the RESVERD3 parameter. If network KPIs are satisfactory, there remain a certain number of remaining power resources, and the downlink BLER is large, increase the value of the RESVERD3 parameter. The increase should be moderate so as not to cause cell throughput to decrease. If cell throughput is decreased due to the decrease in mean CQI and increase in the value of the VS.DataTtiRatio.Mean counter, decrease the value of the RESVERD3 parameter.
8.18 BLER Optimization for HSDPA Burst Services 8.18.1 When to Use BLER Optimization for HSDPA Burst Services Use the BLER Optimization for HSDPA Burst Services function if users want to decrease the BLER of HSDPA services and increase the UE and cell throughput. This function provides noticeable throughput gains when the data transmission duration of HSDPA UEs is 20% shorter than the value of the VS.DataTtiRatio.Mean counter and the BLER of HSDPA services is high.
8.18.2 Information to Be Collected Collect the values of the following NodeB counters before enabling this function:
VS.AckTotal
VS.NackTotal
VS.DtxTotal
VS.DataOutput.Mean
VS.DataTtiRatio.Mean
VS.HSDPA.InactiveDataTtiRatio.Mean
8.18.3 Feature Deployment This section describes how to enable, verify, and disable the BLER Optimization for HSDPA Burst Services function.
Prerequisites
Dependencies on Hardware None
Dependencies on Other Features None
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License None
Procedure
Activation Procedure
Run the NodeB MML command SET LOCELLRSVP with RESVERD1:RSVDBIT29 set to 1.
Verification Procedure
Step 1 Check the values of the NodeB counters: VS.AckTotal, VS.NackTotal, and VS.DtxTotal. Step 2 Use the following formula to obtain the BLER of HSDPA burst services before and after function enabling: BLER = (VS.NackTotal + VS.DtxTotal)/(VS.AckTotal +VS.NackTotal + VS.DtxTotal) If the BLER decreases after function enabling, the function has taken effect. Otherwise, the function does not take effect yet. Step 3 Use the following formula to obtain the cell throughput before and after function enabling: Cell throughput = VS.DataOutput.Mean/(VS.DataTtiRatio.Mean VS.HSDPA.InactiveDataTtiRatio.Mean) If the cell throughput increases after function enabling, the function has taken effect. Otherwise, the function does not take effect yet. ----End
Deactivation Procedure
Run the NodeB MML command SET LOCELLRSVP with RESVERD1:RSVDBIT29 set to 1.
Example //Enabling BLER Optimization for HSDPA Burst Services SET LOCELLRSVP: RESVERD1=RSVDBIT29-1;
//Disabling BLER Optimization for HSDPA Burst Services SET LOCELLRSVP: RESVERD1=RSVDBIT29-0;
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9 Parameters
9 Parameters Table 9-1 Parameter description Parameter NE ID
MML Command
Feature ID Feature Name
Description
AllocCode BSC69 ADD WRFD-010 15 Codes per Meaning:If Manual is chosen, parameter " Mode 00 UCELLHSDPA 61001 Cell Code Number for HS-PDSCH " determines HS-PDSCH code number to MOD WRFD-010 HSDPA be allocated. If Automatic is chosen, UCELLHSDPA 61005 Static Code allocate HS-PDSCH code number Allocation between configured " Code Max Number and for HS-PDSCH " and " Code Min Number RNC-Controll for HS-PDSCH ". For detailed information ed Dynamic of this parameter, refer to 3GPP TS Code 25.308. Allocation GUI Value Range:Manual(Manual), Automatic(Automatic) Actual Value Range:Manual, Automatic Unit:None Default Value:Automatic(Automatic) ChannelRet BSC69 SET WRFD-010 HSUPA 2ms Meaning:This parameter specifies the ryHoTimerL 00 UCOIFTIMER 61403 TTI value of the channel retry handover timer. en WRFD-010 HSUPA When handover is performed and some 61404 2ms/10ms higher HSPA or HSPA plus technique is TTI supported, UTRAN will trigger the WRFD-010 Handover reconfiguration for the higher techniques. 636 SRB over Pingpang will happen when the WRFD-010 HSUPA reconfiguration is triggered immediately 652 when handover succeeds, because SRB over handover procedure is frequently. WRFD-010 HSDPA 683 In order to avoid the pingpang, this timer Downlink will start after handover procedure is WRFD-010 64QAM performed, and the reconfiguration will not 684 2x2 MIMO be triggered until the timer expires. WRFD-010 GUI Value Range:0~999 685 Downlink Enhanced L2 Actual Value Range:0~999 WRFD-010 686 CPC - DTX / Unit:s DRX WRFD-010 Default Value:2 687 CPC HS-SCCH WRFD-021 less 101 operation WRFD-021 Dynamic Channel
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9-1
WCDMA RAN HSDPA
Parameter NE ID
9 Parameters
MML Command
Feature ID Feature Name 200
Description
Configuration Control (DCCC) HCS (Hierarchical Cell Structure)
CodeAdjFor BSC69 ADD WRFD-010 HsdpaSwitc 00 UCELLHSDPA 61005 h MOD UCELLHSDPA
HSDPA Meaning:This parameter specifies code Static Code reshuffling switch for HDSPA. If the switch Allocation is set as ON, codes occupied by the R99 and service can be adjusted toward codes with RNC-Controll small numbers to release the sharing ed Dynamic codes adjacent to HSDPA code. When " Code Allocate Code Mode " is set to Automatic Allocation or the NodeB automatic code algorithm is enabled, the released codes can be used by HSDPA and thus HSDPA throughput can be improved. GUI Value Range:OFF(OFF), ON(ON) Actual Value Range:OFF, ON Unit:None Default Value:ON(ON)
CodeAdjFor BSC69 ADD WRFD-010 HsdpaUser 00 UCELLHSDPA 61005 NumThd MOD UCELLHSDPA
HSDPA Meaning:H-based code tree reshuffle user Static Code number threshold. When the switch "Code Allocation Adjust Switch for HSDPA"is enabled, if the and number of users on the tree to be RNC-Controll reshuffled is no greater than this ed Dynamic parameter, the reshuffle is allowed. Code Otherwise, the reshuffle is given up. This Allocation parameter limits the number of users involved in one reshuffle so that reshuffle on lots of users at a time is avoided. GUI Value Range:1~16 Actual Value Range:1~16 Unit:None Default Value:3
CQIADJAL NodeB SET WRFD-010 HSDPA GOFNONC MACHSPARA 61004 Power ON Control
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Meaning:Indicates the Channel Quality Indicator(CQI) Adjust Algorithm Switch of non-Conversational Service. Not CQI Adjust Algorithm: CQI correction is not performed. CQI Adjusted by IBLER: CQI correction is performed for
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9-2
WCDMA RAN HSDPA
Parameter NE ID
9 Parameters
MML Command
Feature ID Feature Name
Description non-conversational services based on the fixed IBLER. The IBLER will converge to this target value. GUI Value Range:NO_CQI_ADJ(Not CQI Adjust Algorithm), CQI_ADJ_BY_IBLER(CQI Adjusted by IBLER), CQI_ADJ_BY_DYN_BLER(CQI Adjusted by Dynamic BLER) Actual Value Range:NO_CQI_ADJ, CQI_ADJ_BY_IBLER, CQI_ADJ_BY_DYN_BLER Unit:None Default Value:NO_CQI_ADJ(Not CQI Adjust Algorithm)
DYNCODE NodeB SET WRFD-010 Dynamic SW MACHSPARA 631 Code Allocation Based on Node B
Meaning:Indicates the Dynamic Code Switch. When this switch is turned on, the cell codes are used efficiently, and the system capacity is improved. GUI Value Range:OPEN(open), CLOSE(close) Actual Value Range:OPEN, CLOSE Unit:None Default Value:OPEN(open)
HappyBR
BSC69 SET WRFD-010 HSDPA Flow Meaning:Defines the happy bit rate of the 00 UUSERHAPP 61010 Control best effort (BE) service with different user YBR priorities(user priorities can be set by parameter UserPriority). This Happy bit rate is sent to NodeB by RNC through the Iub interface. When the NodeB resource is limited and the HS-DSCH bit rate of the user exceeds the Happy bit rate, the HS-DSCH scheduling priority will be decreased. When this parameter is set to zero, it indicates that NodeB will not adjust the HS-DSCH scheduling priority. This value of parameter can be set by the HappyBR in command ADD UOPERUSERHAPPYBR. If the value of the parameter HappyBR in command ADD UOPERUSERHAPPYBR is larger than 5000, it will be set to the minimum of the HappyBR value in SET UUSERHAPPYBR and 5000.
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WCDMA RAN HSDPA
Parameter NE ID
9 Parameters
MML Command
Feature ID Feature Name
Description GUI Value Range:0~27900 Actual Value Range:0~27900 Unit:kbit/s Default Value:0
HspaPower BSC69 ADD WRFD-010 HSDPA 00 UCELLHSDPA 61004 Power Control MOD UCELLHSDPA
Meaning:This parameter specifies the offset between the total HSPA power and the maximum transmission power of a cell. The total HSPA power is the maximum value of HSPA dynamical power can be adjusted. For details about this parameter, refer to 3GPP TS 25.308. GUI Value Range:-500~0 Actual Value Range:-50~0 Unit:0.1dB Default Value:0
HsPdschCo BSC69 ADD WRFD-010 15 Codes per Meaning:The parameter specifies the deNum 00 UCELLHSDPA 61001 Cell number of HS-DPSCH codes. This parameter is valid only when "Allocate MOD WRFD-010 HSDPA Code Mode" is set to "Manual". For UCELLHSDPA 61005 Static Code detailed information about this parameter, Allocation refer to 3GPP TS 25.308. and RNC-Controll GUI Value Range:1~15 ed Dynamic Actual Value Range:1~15 Code Allocation Unit:None Default Value:5 HsPdschM BSC69 ADD WRFD-010 axCodeNu 00 UCELLHSDPA 61001 m MOD WRFD-010 UCELLHSDPA 61005
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15 Codes per Meaning:The parameter determines the Cell maximum number of HS-PDSCH codes (SF=16). This parameter is valid only when HSDPA "Allocate Code Mode" is set to Static Code "Automatic". The number of codes used by Allocation the HS-PDSCH is dynamically set and between "Code Min Number for RNC-Controll HS-PDSCH" and "Code Max Number for ed Dynamic HS-PDSCH", based on whether the code Code tree is idle or busy. When the code Allocation resource used by the non-HSPA services is little, the HS-PDSCH uses the rest idle codes as much as possible, and the maximum number of idle codes (SF=16 continuous codes) is equal to the value of
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9-4
WCDMA RAN HSDPA
Parameter NE ID
9 Parameters
MML Command
Feature ID Feature Name
Description "Code Max Number for HS-PDSCH". GUI Value Range:1~15 Actual Value Range:1~15 Unit:None Default Value:5
HsPdschMi BSC69 ADD WRFD-010 15 Codes per Meaning:The parameter specifies the nCodeNum 00 UCELLHSDPA 61001 Cell minimum number of the HS-PDSCH codes (SF=16). This parameter is valid only when MOD WRFD-010 HSDPA "Allocate Code Mode" is set to Automatic. UCELLHSDPA 61005 Static Code The number of codes used by the Allocation HS-PDSCH is dynamically set between and "Code Min Number for HS-PDSCH" and RNC-Controll "Code Max Number for HS-PDSCH", ed Dynamic based on the idle state of the code tree. Code When the non-H services need more code Allocation resources, the non-H service will gradually occupy the codes used by the HS-PDSCH. The number of codes (SF=16 continuous codes) the HS-DPSCH reserved is not less than the value of "Code Min Number for HS-PDSCH". GUI Value Range:1~15 Actual Value Range:1~15 Unit:None Default Value:1 HsPdschM BSC69 ADD WRFD-010 POConstEn 00 UCELLHSDPA 610 um MOD WRFD-010 UCELLHSDPA 61004
HSDPA Meaning:This parameter named Measure Introduction Power Offset Constant is used to compute Package measurement power offset. Measurement power offset is used by UE to obtain total HSDPA received HS-PDSCH power. The Power calculation for Measure Power Offset is as Control shown below: Measure Power Offset = Max(-6, Min(13,CellMaxPower - PcpichPower Measure Power OffsetConstant)). For details of the IE "Measure Power Offset", refer to 3GPP TS 25.214. GUI Value Range:Minus3.0DB(-3.0dB), Minus2.5DB(-2.5dB), Minus2.0DB(-2.0dB), Minus1.5DB(-1.5dB), Minus1.0DB(-1.0dB), Minus0.5DB(-0.5dB), 0.0DB(0.0dB),
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WCDMA RAN HSDPA
Parameter NE ID
9 Parameters
MML Command
Feature ID Feature Name
Description 0.5DB(0.5dB), 1.0DB(1.0dB), 1.5DB(1.5dB), 2.0DB(2.0dB), 2.5DB(2.5dB), 3.0DB(3.0dB), 3.5DB(3.5dB), 4.0DB(4.0dB), 4.5DB(4.5dB), 5.0DB(5.0dB), 5.5DB(5.5dB), 6.0DB(6.0dB), 6.5DB(6.5dB), 7.0DB(7.0dB), 7.5DB(7.5dB), 8.0DB(8.0dB), 8.5DB(8.5dB), 9.0DB(9.0dB), 9.5DB(9.5dB), 10.0DB(10.0dB), 10.5DB(10.5dB), 11.0DB(11.0dB), 11.5DB(11.5dB), 12.0DB(12.0dB), 12.5DB(12.5dB), 13.0DB(13.0dB), 13.5DB(13.5dB), 14.0DB(14.0dB), 14.5DB(14.5dB), 15.0DB(15.0dB), 15.5DB(15.5dB), 16.0DB(16.0dB), 16.5DB(16.5dB), 17.0DB(17.0dB), 17.5DB(17.5dB), 18.0DB(18.0dB), 18.5DB(18.5dB), 19.0DB(19.0dB) Actual Value Range:-3.0, -2.5, -2.0, -1.5, -1.0, -0.5, 0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0, 13.5, 14.0, 14.5, 15.0, 15.5, 16.0, 16.5, 17.0, 17.5, 18.0, 18.5, 19.0 Unit:dB Default Value:2.5DB(2.5dB)
HsScchCod BSC69 ADD WRFD-010 HSDPA Meaning:This parameter decides the eNum 00 UCELLHSDPA 610 Introduction maximum number of subscribers that the Package NodeB can schedule in a TTI period. For MOD WRFD-020 detailed information of this parameter, UCELLHSDPA 108 Code refer to 3GPP TS 25.308. Resource WRFD-010 Management GUI Value Range:1~15 61018 Time and Actual Value Range:1~15 HS-PDSCH Unit:None Codes Multiplex Default Value:4 LOCWEIG NodeB SET WRFD-140 EPF_LOC HT MACHSPARA 221
Meaning:Indicates the weight of the EPF_LOC (user location-based EPF) algorithm. A larger parameter value indicates more factors that should be considered for user location-based HSDPA scheduling scheme. GUI Value Range:0, 1, 2, 3
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WCDMA RAN HSDPA
Parameter NE ID
9 Parameters
MML Command
Feature ID Feature Name
Description Actual Value Range:0, 1, 2, 3 Unit:None Default Value:1
MAXEFAC NodeB SET WRFD-010 Enhanced Meaning:Indicates the MAX HARQ HHARQRT MACHSPARA 688 CELL-FACH Retransmission Times of E_FACH user. GUI Value Range:0~10 Actual Value Range:0~10 Unit:None Default Value:2 MAXNONC NodeB SET WRFD-010 HSDPA ONVERHA MACHSPARA 61009 H-ARQ & RQRT Scheduling (MAX C/I, RR and PF)
Meaning:Indicates the MAX HARQ Retransmission Times of Non-Conversational service in CELL DCH state. GUI Value Range:0~10 Actual Value Range:0~10 Unit:None Default Value:4
MXPWRPH NodeB SET WRFD-010 HSDPA USR MACHSPARA 61009 H-ARQ & Scheduling (MAX C/I, RR and PF)
Meaning:Indicates the Max Power Per Hs-user. GUI Value Range:1~100 Actual Value Range:1~100 Unit:% Default Value:100
PWRMGN NodeB SET WRFD-010 HSDPA MACHSPARA 61004 Power Control
Meaning:Indicates the Power Margin Ratio. GUI Value Range:0~100 Actual Value Range:0~100 Unit:% Default Value:5
None RESVERD NodeB SET 1 LOCELLRSVP
None
Meaning:Indicates the reserved parameter 1. GUI Value Range:RSVDBIT1(Reserved Switch 1), RSVDBIT2(Reserved Switch 2),
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WCDMA RAN HSDPA
Parameter NE ID
9 Parameters
MML Command
Feature ID Feature Name
Description RSVDBIT3(Reserved Switch 3), RSVDBIT4(Reserved Switch 4), RSVDBIT5(Reserved Switch 5), RSVDBIT6(Reserved Switch 6), RSVDBIT7(Reserved Switch 7), RSVDBIT8(Reserved Switch 8), RSVDBIT9(Reserved Switch 9), RSVDBIT10(Reserved Switch 10), RSVDBIT11(Reserved Switch 11), RSVDBIT12(Reserved Switch 12), RSVDBIT13(Reserved Switch 13), RSVDBIT14(Reserved Switch 14), RSVDBIT15(Reserved Switch 15), RSVDBIT16(Reserved Switch 16), RSVDBIT17(Reserved Switch 17), RSVDBIT18(Reserved Switch 18), RSVDBIT19(Reserved Switch 19), RSVDBIT20(Reserved Switch 20), RSVDBIT21(Reserved Switch 21), RSVDBIT22(Reserved Switch 22), RSVDBIT23(Reserved Switch 23), RSVDBIT24(Reserved Switch 24), RSVDBIT25(Reserved Switch 25), RSVDBIT26(Reserved Switch 26), RSVDBIT27(Reserved Switch 27), RSVDBIT28(Reserved Switch 28), RSVDBIT29(Reserved Switch 29), RSVDBIT30(Reserved Switch 30), RSVDBIT31(Reserved Switch 31), RSVDBIT32(Reserved Switch 32) Actual Value Range:RSVDBIT1, RSVDBIT2, RSVDBIT3, RSVDBIT4, RSVDBIT5, RSVDBIT6, RSVDBIT7, RSVDBIT8, RSVDBIT9, RSVDBIT10, RSVDBIT11, RSVDBIT12, RSVDBIT13, RSVDBIT14, RSVDBIT15, RSVDBIT16, RSVDBIT17, RSVDBIT18, RSVDBIT19, RSVDBIT20, RSVDBIT21, RSVDBIT22, RSVDBIT23, RSVDBIT24, RSVDBIT25, RSVDBIT26, RSVDBIT27, RSVDBIT28, RSVDBIT29, RSVDBIT30, RSVDBIT31, RSVDBIT32 Unit:None Default Value:Reserved Switch 1:OFF, Reserved Switch 2:OFF, Reserved Switch 3:OFF, Reserved Switch 4:OFF, Reserved Switch 5:OFF, Reserved Switch 6:OFF, Reserved Switch 7:OFF, Reserved Switch 8:OFF, Reserved Switch 9:OFF, Reserved Switch 10:OFF, Reserved Switch 11:OFF,
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WCDMA RAN HSDPA
Parameter NE ID
9 Parameters
MML Command
Feature ID Feature Name
Description Reserved Switch 12:OFF, Reserved Switch 13:OFF, Reserved Switch 14:OFF, Reserved Switch 15:OFF, Reserved Switch 16:OFF, Reserved Switch 17:OFF, Reserved Switch 18:OFF, Reserved Switch 19:OFF, Reserved Switch 20:OFF, Reserved Switch 21:OFF, Reserved Switch 22:OFF, Reserved Switch 23:OFF, Reserved Switch 24:OFF, Reserved Switch 25:OFF, Reserved Switch 26:OFF, Reserved Switch 27:OFF, Reserved Switch 28:OFF, Reserved Switch 29:OFF, Reserved Switch 30:OFF, Reserved Switch 31:OFF, Reserved Switch 32:OFF
None RESVERD NodeB SET 3 LOCELLRSVP
None
Meaning:Indicates the reserved parameter 3. GUI Value Range:0~4294967295 Actual Value Range:0~4294967295 Unit:None Default Value:0
RSCALLO NodeB SET WRFD-010 HSDPA CM MACHSPARA 61009 H-ARQ & Scheduling (MAX C/I, RR and PF)
Meaning:Indicates the Resource Allocate Method. Radio resources indicate HSDPA available power resources and code resources. Code Priority: The code resource priority allocation scheme mainly applies to scenarios where power resources are limited. In scenarios where power resources are not limited, this scheme lowers the system throughput. Power Priority: The power resource priority allocation scheme mainly applies to scenarios where code resources are limited. In scenarios where code resources are not limited, this scheme lowers the system throughput. Balance between Code and Power: The power-code balanced scheme avoids exhaustion of either type of resources, improves the resource use efficiency and improves the cell capacity. GUI Value Range:CODE_PRI(Code Priority), POWER_PRI(Power Priority), POWERCODE_BAL(Balance between Code and Power) Actual Value Range:CODE_PRI,
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9-9
WCDMA RAN HSDPA
Parameter NE ID
9 Parameters
MML Command
Feature ID Feature Name
Description POWER_PRI, POWERCODE_BAL Unit:None Default Value:POWERCODE_BAL(Balance between Code and Power)
RSCLMSW NodeB SET WRFD-010 Scheduling MACHSPARA 61103 based on EPF and GBR
Meaning:Indicates the Resource Limiting Switch. When this switch is turned on, the resources available to GBR users are restricted. When the resource usage is above the threshold, the throughput may be improved (for example, large GBRs configured for users at the cell edge). GUI Value Range:OPEN(open), CLOSE(close) Actual Value Range:OPEN, CLOSE Unit:None Default Value:OPEN(open)
RsvdPara1 BSC69 ADD WRFD-020 Admission 00 UCELLALGOS 101 Control WITCH MOD UCELLALGOS WITCH
Meaning:Reserved parameter 1. Disuse statement: This parameter is used temporarily in patch versions and will be replaced with a new parameter in later versions. The new parameter ID reflects the parameter function. Therefore, this parameter is not recommended for the configuration interface. GUI Value Range:RSVDBIT1(Reserved Switch 1), RSVDBIT2(Reserved Switch 2), RSVDBIT3(Reserved Switch 3), RSVDBIT4(Reserved Switch 4), RSVDBIT5(Reserved Switch 5), RSVDBIT6(Reserved Switch 6), RSVDBIT7(Reserved Switch 7), RSVDBIT8(Reserved Switch 8), RSVDBIT9(Reserved Switch 9), RSVDBIT10(Reserved Switch 10), RSVDBIT11(Reserved Switch 11), RSVDBIT12(Reserved Switch 12), RSVDBIT13(Reserved Switch 13), RSVDBIT14(Reserved Switch 14), RSVDBIT15(Reserved Switch 15), RSVDBIT16(Reserved Switch 16) Actual Value Range:RSVDBIT1, RSVDBIT2, RSVDBIT3, RSVDBIT4, RSVDBIT5, RSVDBIT6, RSVDBIT7,
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9-10
WCDMA RAN HSDPA
Parameter NE ID
9 Parameters
MML Command
Feature ID Feature Name
Description RSVDBIT8, RSVDBIT9, RSVDBIT10, RSVDBIT11, RSVDBIT12, RSVDBIT13, RSVDBIT14, RSVDBIT15, RSVDBIT16 Unit:None Default Value:RSVDBIT1-0&RSVDBIT2-0&RSVD BIT3-0&RSVDBIT4-0&RSVDBIT5-0&RSV DBIT6-0&RSVDBIT7-0&RSVDBIT8-0&RS VDBIT9-0&RSVDBIT10-0&RSVDBIT11-0 &RSVDBIT12-0&RSVDBIT13-0&RSVDBI T14-0&RSVDBIT15-0&RSVDBIT16-0
SM
NodeB SET WRFD-010 HSDPA MACHSPARA 61009 H-ARQ & Scheduling (MAX C/I, RR and PF)
Meaning:Indicates the HSDPA Scheduling Method. PF: The differences between channel environments of users are considered in order to ensure equity among users. Enhanced PF: This algorithm is an enhancement to PF. Channel quality is considered in order to reach high resource efficiency and gain a high system capacity. Round Robin: Scheduling opportunities are allocated among users simply and effectively on a polling basis. The system throughput is low. Max C/I: This algorithm brings about the maximum possible system throughput, but it cannot ensures equity between users or meet users' QoS requirements. GUI Value Range:EPF(Enhanced PF), PF(PF), RR(Round Robin), MAXCI(Max C/I), EPF_LOC(Location based EPF) Actual Value Range:EPF, PF, RR, MAXCI, EPF_LOC Unit:None Default Value:EPF(Enhanced PF)
SPI
BSC69 SET WRFD-020 Differentiated Meaning:Scheduling priority of interactive 00 USPIWEIGHT 806 Service and background services. Value 11 Based on indicates the highest priority, while value 2 SPI Weight indicates the lowest priority. Values 0, 1, 12, 13, 14, and 15 are reserved for the other services. GUI Value Range:0~15 Actual Value Range:0~15 Unit:None
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9-11
WCDMA RAN HSDPA
Parameter NE ID
9 Parameters
MML Command
Feature ID Feature Name
Description Default Value:None
SpiWeight BSC69 SET WRFD-020 Differentiated Meaning:Specifies the weight for service 00 USPIWEIGHT 806 Service scheduling priority. This weight is used in Based on two algorithms. In scheduling algorithm, it SPI Weight is used to adjust the handling priority for different services. In Iub congestion algorithm, it is used to allocate bandwidth for different services. If the weight is higher, it is more possible to increase the handling priority of the user or get more Iub bandwidth, respectively. GUI Value Range:1~100 Actual Value Range:1~100 Unit:% Default Value:100
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9-12
WCDMA RAN HSDPA
10 Counters
10 Counters Table 10-1 Counter description Count Counter Name er ID
Counter Description
503316 VS.AckTotal 54
Total number of NodeB WRFD-0106 HSDPA ACKs received 1009 H-ARQ & Scheduling (MAX C/I, RR and PF)
503316 VS.NackTotal 55
Total number of NodeB WRFD-0106 HSDPA NACKs received 1009 H-ARQ & Scheduling (MAX C/I, RR and PF)
503316 VS.DtxTotal 56
Total number of NodeB WRFD-0106 TTIs when the 1009 NodeB can not translate the acknowledgeme nt information from the UE
503316 VS.AckFirst 57
Number of ACKs NodeB WRFD-0106 HSDPA received after 1st 1009 H-ARQ & transmission Scheduling (MAX C/I, RR and PF)
503316 VS.AckRetrans.1 58
Number of ACKs NodeB WRFD-0106 HSDPA received after 1st 1009 H-ARQ & retransmission Scheduling (MAX C/I, RR and PF)
503316 VS.AckRetrans.2 59
Number of ACKs NodeB WRFD-0106 received after 1009 2nd retransmission
HSDPA H-ARQ & Scheduling (MAX C/I, RR and PF)
503316 VS.AckRetrans.3 60
Number of ACKs NodeB WRFD-0106 received after 1009 3rd retransmission
HSDPA H-ARQ & Scheduling (MAX C/I, RR and PF)
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NE
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Feature ID
Feature Name
HSDPA H-ARQ & Scheduling (MAX C/I, RR and PF)
10-1
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503316 VS.AckRetrans.4 61
Number of ACKs NodeB WRFD-0106 HSDPA received after 4th 1009 H-ARQ & retransmission Scheduling (MAX C/I, RR and PF)
503316 VS.AckRetrans.5 62
Number of ACKs NodeB WRFD-0106 HSDPA received after 5th 1009 H-ARQ & retransmission Scheduling (MAX C/I, RR and PF)
503316 VS.AckRetrans.6 63
Number of ACKs NodeB WRFD-0106 HSDPA received after 6th 1009 H-ARQ & retransmission Scheduling (MAX C/I, RR and PF)
503316 VS.AckRetrans.7 64
Number of ACKs NodeB WRFD-0106 HSDPA received after 7th 1009 H-ARQ & retransmission Scheduling (MAX C/I, RR and PF)
503316 VS.AckRetrans.8 65
Number of ACKs NodeB WRFD-0106 HSDPA received after 8th 1009 H-ARQ & retransmission Scheduling (MAX C/I, RR and PF)
503316 VS.AckRetrans.9 66
Number of ACKs NodeB WRFD-0106 HSDPA received after 9th 1009 H-ARQ & retransmission Scheduling (MAX C/I, RR and PF)
503316 VS.AckRetrans.10 67
Number of ACKs NodeB WRFD-0106 received after 1009 10th retransmission
503316 VS.AckRemain 68
Number of times NodeB WRFD-0106 HSDPA the NodeB does 1009 H-ARQ & not receive the Scheduling ACK from the UE (MAX C/I, after the last RR and PF) retransmission
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NE
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Feature ID
Feature Name
HSDPA H-ARQ & Scheduling (MAX C/I, RR and PF)
10-2
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.HSDPA.MIMO64QAMCfg.ActedNum 17
Number of times NodeB WRFD-0106 that all the users 10 configured in 64QAM+MIMO mode in a cell WRFD-0106 employ 64QAM 89 during the measurement period WRFD-0106 93
NE
Feature ID
Feature Name HSDPA Introduction Package
HSPA+ Downlink 42Mbps per User
DL 64QAM+MI MO 503317 VS.HSDPA.MIMO64QAMCfg.ScheduledNu Number of times NodeB WRFD-0106 18 m that all the users 10 configured in 64QAM+MIMO mode in a cell WRFD-0106 are scheduled 89 during the measurement period WRFD-0106 93
HSDPA Introduction Package
HSPA+ Downlink 42Mbps per User
DL 64QAM+MI MO 503317 VS.HSDPA.DCCfg.AnchorCarrierActedNum Number of times NodeB 19 that all the users configured in DC mode in a cell are scheduled by AnchorCarrier during the measurement period
WRFD-0106 HSDPA 10 Introduction Package WRFD-0106 89 HSPA+ Downlink 42Mbps per WRFD-0106 User 96 DC-HSDPA
503317 VS.HSDPA.DCCfg.SupCarrierActedNum 20
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Total number of NodeB WRFD-0106 HSDPA times 10 Introduction DC-HSDPA-ena Package bled users are scheduled by the WRFD-0106 supplementary
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10-3
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
carrier
Feature ID
Feature Name
89
HSPA+ Downlink 42Mbps per WRFD-0106 User 96 DC-HSDPA
503317 VS.HSDPA.DCCfg.DualCarrierActedNum 21
Total number of NodeB times DC-HSDPA-ena bled users are scheduled by the anchor and supplementary carriers at the same time
WRFD-0106 HSDPA 10 Introduction Package WRFD-0106 89 HSPA+ Downlink 42Mbps per WRFD-0106 User 96 DC-HSDPA
503317 VS.HSDPA.16QAMCfg.ActedNum 22
503317 VS.HSDPA.QPSKCfg.ActedNum 23
Total number of NodeB WRFD-0106 times all the 10 users in a cell use 16QAM mode WRFD-0106 29
HSDPA Introduction Package
DL 16QAM Modulation
Total number of NodeB WRFD-0106 HSDPA times users use 10 Introduction the QPSK mode Package WRFD-0106 1017 QPSK Modulation
503317 VS.HSDPA.All.ScheduledNum 24
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Total number of NodeB WRFD-0106 times all the 10 users are scheduled in a cell WRFD-0106 1009
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HSDPA Introduction Package
HSDPA H-ARQ & Scheduling (MAX C/I, RR and PF)
10-4
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.UsedCQI0 54
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=0
NE
Feature ID
Feature Name
WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation 503317 VS.UsedCQI1 55
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=1 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
503317 VS.UsedCQI2 56
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=2 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-5
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.UsedCQI3 57
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=3
NE
Feature ID
Feature Name
WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation 503317 VS.UsedCQI4 58
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=4 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
503317 VS.UsedCQI5 59
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=5 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-6
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.UsedCQI6 60
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=6
NE
Feature ID
Feature Name
WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation 503317 VS.UsedCQI7 61
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=7 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
503317 VS.UsedCQI8 62
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=8 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-7
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.UsedCQI9 63
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=9
NE
Feature ID
Feature Name
WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation 503317 VS.UsedCQI10 64
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=10 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
503317 VS.UsedCQI11 65
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=11 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-8
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.UsedCQI12 66
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=12
NE
Feature ID
Feature Name
WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation 503317 VS.UsedCQI13 67
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=13 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
503317 VS.UsedCQI14 68
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=14 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-9
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.UsedCQI15 69
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=15
NE
Feature ID
Feature Name
WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation 503317 VS.UsedCQI16 70
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=16 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
503317 VS.UsedCQI17 71
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=17 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-10
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.UsedCQI18 72
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=18
NE
Feature ID
Feature Name
WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation 503317 VS.UsedCQI19 73
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=19 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
503317 VS.UsedCQI20 74
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=20 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-11
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.UsedCQI21 75
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=21
NE
Feature ID
Feature Name
WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation 503317 VS.UsedCQI22 76
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=22 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
503317 VS.UsedCQI23 77
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=23 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-12
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.UsedCQI24 78
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=24
NE
Feature ID
Feature Name
WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation 503317 VS.UsedCQI25 79
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=25 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
503317 VS.UsedCQI26 80
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=26 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-13
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.UsedCQI27 81
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=27
NE
Feature ID
Feature Name
WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation 503317 VS.UsedCQI28 82
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=28 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
503317 VS.UsedCQI29 83
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=29 WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-14
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503317 VS.UsedCQI30 84
Number of times NodeB WRFD-0106 HSDPA the NodeB 10 Introduction transmits data Package with CQI=30
NE
Feature ID
Feature Name
WRFD-0106 1018 Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation 503317 VS.UsedCQI31to39 85
Number of times NodeB WRFD-0106 the NodeB 10 transmits data with CQI=[31, 39] WRFD-0106 1018
HSDPA Introduction Package
Time and HS-PDSCH Codes WRFD-0106 Multiplex 1019 HSDPA Dynamic Power Allocation
503318 VS.HSDPA.DataOutput.TRB 38
HSDSCH TRB NodeB WRFD-0106 HSDPA traffic volume in 11 Enhanced a cell Package
503318 VS.HSDPA.DataTtiNum.TRB 39
Number of TTIs NodeB WRFD-0106 HSDPA in which TRB 11 Enhanced data is to be Package transmitted in the HSDPA user queue in a cell
503318 VS.HSDPA.InactiveDataTtiNum.TRB 40
Number of TTIs NodeB WRFD-0106 HSDPA in which at least 11 Enhanced one HSDPA user Package in a cell has data to transmit in the queue buffer but
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-15
WCDMA RAN HSDPA
Count Counter Name er ID
10 Counters
Counter Description
NE
Feature ID
Feature Name
no HSDPA user transmits data at the physical layer 503327 VS.IUB.FlowCtrol.DL.AdjBW.LgcPort1.Max IUB logic port_1 NodeB WRFD-0106 HSDPA 24 maximum DL 1010 Flow HSDPA available Control bandwidth 503327 VS.IUB.FlowCtrol.DL.AdjBW.LgcPort1.Min IUB logic port_1 NodeB WRFD-0106 HSDPA 25 minimum DL 1010 Flow HSDPA available Control bandwidth 503327 VS.IUB.FlowCtrol.DL.AdjBW.LgcPort1.Avg IUB logic port_1 NodeB WRFD-0106 HSDPA 26 average DL 1010 Flow HSDPA available Control bandwidth 503327 VS.IUB.FlowCtrol.DL.Delay.UpBW.Num.Lgc IUB logic port_1 NodeB WRFD-0106 HSDPA 28 Port1 DL HSDPA 1010 Flow available Control bandwidth increase times after jitter congestion released 503327 VS.IUB.FlowCtrol.DL.Drop.UpBW.Num.Lgc IUB logic port_1 NodeB WRFD-0106 HSDPA 29 Port1 DL HSDPA 1010 Flow available Control bandwidth increase times after packet loss congestion released 503327 VS.IUB.FlowCtrol.DL.DelayCong.DownBW IUB logic port_1 NodeB WRFD-0106 HSDPA 31 Num.LgcPort1 DL HSDPA 1010 Flow available Control bandwidth decrease times for jitter congestion 503327 VS.IUB.FlowCtrol.DL.DropCong.DownBWN IUB logic port_1 NodeB WRFD-0106 HSDPA 33 um.LgcPort1 DL HSDPA 1010 Flow available Control bandwidth decrease times Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-16
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
Feature ID
Feature Name
for packet loss congestion 503327 VS.IUB.FlowCtrol.DL.ReceiveNum.LgcPort1 IUB logic port_1 NodeB WRFD-0106 HSDPA 35 Number of DL 1010 Flow HSDPA frames Control IUB logic port received 503327 VS.IUB.FlowCtrol.DL.DropNum.LgcPort1 37
IUB logic port_1 NodeB WRFD-0106 HSDPA Number of lost 1010 Flow DL HSDPA Control frames
503327 VS.IUB.FlowCtrol.DL.DelayVara.LgcPort1.M IUB logic port_1 NodeB WRFD-0106 HSDPA 41 ax maximum DL 1010 Flow HSDPA delay Control jitter 503327 VS.IUB.FlowCtrol.DL.DelayVara.LgcPort1.M IUB logic port_1 NodeB WRFD-0106 HSDPA 42 in minimum DL 1010 Flow HSDPA delay Control jitter 503327 VS.IUB.FlowCtrol.DL.DelayVara.LgcPort1.A IUB logic port_1 NodeB WRFD-0106 HSDPA 43 vg average DL 1010 Flow HSDPA delay Control jitter 503327 VS.IUB.FlowCtrol.DL.CongTime.LgcPort1 45
IUB logic port_1 NodeB WRFD-0106 HSDPA DL HSDPA 1010 Flow congestion Control duration
503327 VS.IUB.FlowCtrol.DL.AdjBW.LgcPort2.Max IUB logic port_2 NodeB WRFD-0106 HSDPA 49 maximum DL 1010 Flow HSDPA available Control bandwidth 503327 VS.IUB.FlowCtrol.DL.AdjBW.LgcPort2.Min IUB logic port_2 NodeB WRFD-0106 HSDPA 50 minimum DL 1010 Flow HSDPA available Control bandwidth 503327 VS.IUB.FlowCtrol.DL.AdjBW.LgcPort2.Avg IUB logic port_2 NodeB WRFD-0106 HSDPA 51 average DL 1010 Flow HSDPA available Control bandwidth
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-17
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
Feature ID
Feature Name
503327 VS.IUB.FlowCtrol.DL.Delay.UpBW.Num.Lgc IUB logic port_2 NodeB WRFD-0106 HSDPA 53 Port2 DL HSDPA 1010 Flow available Control bandwidth increase times after jitter congestion released 503327 VS.IUB.FlowCtrol.DL.Drop.UpBW.Num.Lgc IUB logic port_2 NodeB WRFD-0106 HSDPA 54 Port2 DL HSDPA 1010 Flow available Control bandwidth increase times after packet loss congestion released 503327 VS.IUB.FlowCtrol.DL.DelayCong.DownBW IUB logic port_2 NodeB WRFD-0106 HSDPA 56 Num.LgcPort2 DL HSDPA 1010 Flow available Control bandwidth decrease times for jitter congestion 503327 VS.IUB.FlowCtrol.DL.DropCong.DownBWN IUB logic port_2 NodeB WRFD-0106 HSDPA 58 um.LgcPort2 DL HSDPA 1010 Flow available Control bandwidth decrease times for packet loss congestion 503327 VS.IUB.FlowCtrol.DL.ReceiveNum.LgcPort2 IUB logic port_2 NodeB WRFD-0106 HSDPA 60 Number of DL 1010 Flow HSDPA frames Control IUB logic port received 503327 VS.IUB.FlowCtrol.DL.DropNum.LgcPort2 62
IUB logic port_2 NodeB WRFD-0106 HSDPA Number of lost 1010 Flow DL HSDPA Control frames
503327 VS.IUB.FlowCtrol.DL.DelayVara.LgcPort2.M IUB logic port_2 NodeB WRFD-0106 HSDPA 66 ax maximum DL 1010 Flow HSDPA delay Control jitter
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-18
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
Feature ID
Feature Name
503327 VS.IUB.FlowCtrol.DL.DelayVara.LgcPort2.M IUB logic port_2 NodeB WRFD-0106 HSDPA 67 in minimum DL 1010 Flow HSDPA delay Control jitter 503327 VS.IUB.FlowCtrol.DL.DelayVara.LgcPort2.A IUB logic port_2 NodeB WRFD-0106 HSDPA 68 vg average DL 1010 Flow HSDPA delay Control jitter 503327 VS.IUB.FlowCtrol.DL.CongTime.LgcPort2 70
IUB logic port_2 NodeB WRFD-0106 HSDPA DL HSDPA 1010 Flow congestion Control duration
503416 VS.ScchCodeUtil.Mean 48
Average usage NodeB WRFD-0106 15 Codes of HS-SCCH 1001 per Cell code resources in a cell WRFD-0106 Time and 1018 HS-PDSCH Codes Multiplex WRFD-0106 1005 HSDPA Static Code WRFD-0106 Allocation and 31 RNC-Contr olled Dynamic Code Allocation
Dynamic Code Allocation Based on Node B 503416 VS.ScchCodeUtil.Max 49
Maximum usage NodeB WRFD-0106 15 Codes of HS-SCCH 1001 per Cell code resources in a cell WRFD-0106 Time and 1018 HS-PDSCH Codes
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-19
WCDMA RAN HSDPA
Count Counter Name er ID
10 Counters
Counter Description
NE
Feature ID
Feature Name Multiplex
WRFD-0106 1005
HSDPA Static Code Allocation WRFD-0106 and 31 RNC-Contr olled Dynamic Code Allocation
Dynamic Code Allocation Based on Node B 503416 VS.ScchCodeUtil.Min 50
Minimum usage NodeB WRFD-0106 15 Codes of HS-SCCH 1001 per Cell code resources in a cell WRFD-0106 Time and 1018 HS-PDSCH Codes Multiplex WRFD-0106 1005 HSDPA Static Code WRFD-0106 Allocation and 31 RNC-Contr olled Dynamic Code Allocation
Dynamic Code Allocation Based on Node B 503416 VS.PdschCodeUtil.Mean 51
Issue 04 (2013-05-10)
Average usage NodeB WRFD-0106 15 Codes of HS-PDSCH 1001 per Cell code resources
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-20
WCDMA RAN HSDPA
Count Counter Name er ID
10 Counters
Counter Description
NE
Feature ID
Feature Name
in a cell WRFD-0106 Time and 1018 HS-PDSCH Codes Multiplex WRFD-0106 1005 HSDPA Static Code WRFD-0106 Allocation and 31 RNC-Contr olled Dynamic Code Allocation
Dynamic Code Allocation Based on Node B 503416 VS.PdschCodeUtil.Max 52
Maximum usage NodeB WRFD-0106 15 Codes of HS-PDSCH 1001 per Cell code resources in a cell WRFD-0106 Time and 1018 HS-PDSCH Codes Multiplex WRFD-0106 1005 HSDPA Static Code WRFD-0106 Allocation and 31 RNC-Contr olled Dynamic Code Allocation
Dynamic Code Allocation Based on
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-21
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
Feature ID
Feature Name Node B
503416 VS.PdschCodeUtil.Min 53
Minimum usage NodeB WRFD-0106 15 Codes of HS-PDSCH 1001 per Cell code resources in a cell WRFD-0106 Time and 1018 HS-PDSCH Codes Multiplex WRFD-0106 1005 HSDPA Static Code WRFD-0106 Allocation and 31 RNC-Contr olled Dynamic Code Allocation
Dynamic Code Allocation Based on Node B 503416 VS.ScchCodeUtil.Mean.User 54
Average usage NodeB WRFD-0106 of HS-SCCH 1001 code resources when HSDPA users camp on WRFD-0106 the cell 1018
15 Codes per Cell
Time and HS-PDSCH Codes Multiplex
WRFD-0106 1005 HSDPA Static Code WRFD-0106 Allocation and 31 RNC-Contr olled Dynamic Code Allocation
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-22
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
Feature ID
Feature Name Dynamic Code Allocation Based on Node B
503416 VS.ScchCodeUtil.Mean.Data 55
Average usage NodeB of HS-SCCH code resources when at least one HSDPA user has data to transmit in the queue buffer
WRFD-0106 15 Codes 1001 per Cell
WRFD-0106 Time and 1018 HS-PDSCH Codes Multiplex WRFD-0106 1005 HSDPA Static Code WRFD-0106 Allocation and 31 RNC-Contr olled Dynamic Code Allocation
Dynamic Code Allocation Based on Node B 503416 VS.PdschCodeUtil.Mean.User 56
Average usage NodeB WRFD-0106 of HS-PDSCH 1001 code resources when HSDPA users camp on WRFD-0106 the cell 1018
15 Codes per Cell
Time and HS-PDSCH Codes Multiplex
WRFD-0106 1005 HSDPA Static Code WRFD-0106 Allocation and 31 RNC-Contr olled Dynamic
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-23
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
Feature ID
Feature Name Code Allocation
Dynamic Code Allocation Based on Node B 503416 VS.PdschCodeUtil.Mean.Data 57
Average usage NodeB of HS-PDSCH code resources when at least one HSDPA user has data to transmit in the queue buffer
WRFD-0106 15 Codes 1001 per Cell
WRFD-0106 Time and 1018 HS-PDSCH Codes Multiplex WRFD-0106 1005 HSDPA Static Code WRFD-0106 Allocation and 31 RNC-Contr olled Dynamic Code Allocation
Dynamic Code Allocation Based on Node B 503416 VS.UserTtiRatio.Mean 58
Ratio of the time NodeB WRFD-0106 HSDPA when at least 10 Introduction one HSDPA UE Package camps on the cell
503416 VS.DataTtiRatio.Mean 59
Ratio of the time NodeB WRFD-0106 HSDPA when at least 10 Introduction one HSDPA user Package has data to transmit in the queue buffer
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-24
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503416 VS.RabNum.Mean 60
Average number NodeB WRFD-0106 HSDPA of HSDPA RABs 10 Introduction in a cell Package
503416 VS.RabNum.Max 61
NodeB WRFD-0106 HSDPA Maximum number of 10 Introduction HSDPA RABs in Package a cell
503416 VS.RabNum.Min 62
NodeB WRFD-0106 HSDPA Minimum number of 10 Introduction HSDPA RABs in Package a cell
503416 VS.DataRabNum.Mean 63
Average number NodeB WRFD-0106 HSDPA of HSDPA RABs 10 Introduction have data to Package transmit in the queue buffer in a cell
503416 VS.DataRabNum.Max 64
NodeB WRFD-0106 HSDPA Maximum number of 10 Introduction HSDPA RABs Package have data to transmit in the queue buffer in a cell
503416 VS.DataRabNum.Min 65
NodeB WRFD-0106 HSDPA Minimum number of 10 Introduction HSDPA RABs Package have data to transmit in the queue buffer in a cell
503416 VS.RabNumAve.User 66
Average number NodeB WRFD-0106 HSDPA of HSDPA RABs 10 Introduction when HSDPA Package users camp on the cell
503416 VS.RabNumAve.UserData 67
Average number NodeB WRFD-0106 HSDPA of HSDPA RABs 10 Introduction have data to Package transmit in the queue buffer when at least
Issue 04 (2013-05-10)
NE
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Feature ID
Feature Name
10-25
WCDMA RAN HSDPA
Count Counter Name er ID
10 Counters
Counter Description
NE
Feature ID
Feature Name
one HSDPA user has data to transmit in the queue buffer in a cell 503416 VS.DataOutput.Mean 68
NodeB WRFD-0106 HSDPA Average cell throughput at the 11 Enhanced MAC-hs/MAC-eh Package s layer
503416 VS.DataOutput.Max 69
NodeB WRFD-0106 HSDPA Maximum cell throughput at the 11 Enhanced MAC-hs/MAC-eh Package s layer
503416 VS.DataOutput.Min 70
NodeB WRFD-0106 HSDPA Minimum cell throughput at the 11 Enhanced MAC-hs/MAC-eh Package s layer
503416 VS.DataOutput.User 71
NodeB WRFD-0106 HSDPA Average cell throughput when 11 Enhanced HSDPA users Package camp on the cell
503416 VS.DataOutput.UserData 72
NodeB WRFD-0106 HSDPA Average cell throughput when 11 Enhanced at least one Package HSDPA user has data to transmit in the queue buffer
503416 VS.DataOutput.Rab 73
NodeB WRFD-0106 HSDPA Average throughput of 11 Enhanced each RAB when Package HSDPA users camp on the cell
503416 VS.DataOutput.RabData 74
NodeB WRFD-0106 HSDPA Average throughput of 11 Enhanced each RAB when Package at least one HSDPA user has data to transmit in the queue buffer
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
10-26
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
503416 VS.ScchPwrRatio.Mean 75
Average transmit NodeB WRFD-0106 HSDPA power over the 1004 Power HS-SCCH in a Control cell
NE
Feature ID
Feature Name
WRFD-0106 1019 HSDPA Dynamic Power Allocation 503416 VS.ScchPwrRatio.Max 76
503416 VS.ScchPwrRatio.Min 77
503416 VS.PdschPwrRatio.Mean 78
Maximum transmit power over the HS-SCCH in a cell
NodeB WRFD-0106 HSDPA 1004 Power Control
Minimum transmit power over the HS-SCCH in a cell
NodeB WRFD-0106 HSDPA 1004 Power Control
WRFD-0106 1019 HSDPA Dynamic Power Allocation
WRFD-0106 1019 HSDPA Dynamic Power Allocation
Average transmit NodeB WRFD-0106 HSDPA power over the 1004 Power HS-PDSCH in a Control cell WRFD-0106 1019 HSDPA Dynamic Power Allocation
503416 VS.PdschPwrRatio.Max 79
Issue 04 (2013-05-10)
NodeB WRFD-0106 Maximum transmit power 1004 over the HS-PDSCH in a cell WRFD-0106 1019
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HSDPA Power Control
HSDPA Dynamic Power
10-27
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
Feature ID
Feature Name Allocation
503416 VS.PdschPwrRatio.Min 80
NodeB WRFD-0106 Minimum transmit power 1004 over the HS-PDSCH in a cell WRFD-0106 1019
HSDPA Power Control
HSDPA Dynamic Power Allocation
503416 VS.ScchPwrRatio.User 81
Average transmit NodeB WRFD-0106 HSDPA power over the 1004 Power HS-SCCH when Control HSDPA users camp on the cell WRFD-0106 1019 HSDPA Dynamic Power Allocation
503416 VS.PdschPwrRatio.User 82
Average transmit NodeB power over the HS-PDSCH when HSDPA users camp on the cell
WRFD-0106 HSDPA 1004 Power Control
Average transmit NodeB power over the HS-SCCH when at least one HSDPA user has data to transmit in the queue buffer
WRFD-0106 HSDPA 1004 Power Control
Average transmit NodeB power over the HS-PDSCH when at least one HSDPA user has data to transmit in the
WRFD-0106 HSDPA 1004 Power Control
503416 VS.ScchPwrRatio.UserData 83
503416 VS.PdschPwrRatio.Data 84
Issue 04 (2013-05-10)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
WRFD-0106 1019 HSDPA Dynamic Power Allocation
WRFD-0106 1019 HSDPA Dynamic Power Allocation
WRFD-0106 1019 HSDPA Dynamic
10-28
WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
queue buffer
503416 VS.DataDiscardRatio.Mean 85
Feature ID
Feature Name Power Allocation
Average ratio of NodeB WRFD-0106 HSDPA discarded 10 Introduction HSDPA data due Package to timer expiry WRFD-0106 1009 HSDPA H-ARQ & Scheduling (MAX C/I, RR and PF)
503416 VS.DataDiscardRatio.Max 86
Maximum ratio of NodeB WRFD-0106 HSDPA discarded 10 Introduction HSDPA data due Package to timer expiry WRFD-0106 1009 HSDPA H-ARQ & Scheduling (MAX C/I, RR and PF)
503416 VS.DataDiscardRatio.Min 87
Minimum ratio of NodeB WRFD-0106 HSDPA discarded 10 Introduction HSDPA data due Package to timer expiry WRFD-0106 1009 HSDPA H-ARQ & Scheduling (MAX C/I, RR and PF)
503416 VS.PdschCodeUsed.Mean 88
Average number NodeB WRFD-0106 HSDPA of used 10 Introduction HS-PDSCH Package codes in a cell
503416 VS.PdschCodeUsed.Max 89
NodeB WRFD-0106 HSDPA Maximum number of used 10 Introduction HS-PDSCH Package codes in a cell
503416 VS.PdschCodeAvail.Mean 90
Average number NodeB WRFD-0106 HSDPA of available 10 Introduction HS-PDSCH
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WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
codes in a cell
Feature ID
Feature Name Package
503416 VS.PdschCodeAvail.Max 91
Maximum number of available HS-PDSCH codes in a cell
503416 VS.PdschCodeUsed.Min 92
NodeB WRFD-0106 HSDPA Minimum number of used 10 Introduction HS-PDSCH Package codes in a cell
503416 VS.HSDPA.InactiveDataTtiRatio.Mean 93
Average ratio of NodeB WRFD-0106 HSDPA the time when at 10 Introduction least one HSDPA Package user has data to transmit in the buffer but no HSDPA user transmits data at the physical layer
503416 VS.HSDPA.2ScchCodeRatio 94
The time ratio of NodeB WRFD-0106 HSDPA only using two 10 Introduction HS-SCCH codes Package for cell
503416 VS.HSDPA.3ScchCodeRatio 95
The time ratio of NodeB WRFD-0106 HSDPA only using three 10 Introduction HS-SCCH codes Package for cell
503416 VS.HSDPA.4ScchCodeRatio 96
The time ratio of NodeB WRFD-0106 HSDPA only using four 10 Introduction HS-SCCH codes Package for cell
503416 VS.HSDPAPwrRatio.Mean.FreeUser 97
Average usage of free users Hsdpa Power
503416 VS.HSDPAPwrRatio.Max.FreeUser 98
Maximum usage NodeB WRFD-0106 HSDPA of free users 10 Introduction Hsdpa Power Package
503416 VS.DataOutput.Mean.FreeUser 99
NodeB WRFD-0106 HSDPA Average throughput of 10 Introduction free users at the
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NodeB WRFD-0106 HSDPA 10 Introduction Package
NodeB WRFD-0106 HSDPA 10 Introduction Package
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WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
Feature ID
MAC-hs/MAC-eh s layer
Feature Name Package
503417 VS.DataOutput.Max.FreeUser 00
NodeB WRFD-0106 HSDPA Maximum throughput of 10 Introduction free users at the Package MAC-hs/MAC-eh s layer
503417 VS.DataOutput.Min.FreeUser 01
NodeB WRFD-0106 HSDPA Minimum throughput of 10 Introduction free users at the Package MAC-hs/MAC-eh s layer
503417 VS.HSDPA.ScheInactiveDataTtiRatio.Mean Average ratio of NodeB WRFD-0106 HSDPA 39 the time when 10 Introduction some HSDPA Package users are queued in the scheduling candidate set but do not transmit data 671898 VS.HSDPA.MACD.SuccSetup 34
Number of BSC69 WRFD-0106 HSDPA Successful 00 10 Introduction HSDPA MAC-d Package Flow Establishments for Cell
671898 VS.HSDPA.MeanChThroughput.TotalBytes Number of Total BSC69 WRFD-0106 HSDPA 40 Bytes Sent in 00 10 Introduction Downlink of Package HSDPA MAC-d Flow for Cell 671906 VS.HSDPA.SHO.ServCellChg.AttOut 98
Number of BSC69 WRFD-0106 Intra-RNC 00 1006 HSDPA Serving Cell Change Attempts for Cell
HSDPA Mobility Manageme nt
671906 VS.HSDPA.SHO.ServCellChg.SuccOut 99
Number of BSC69 WRFD-0106 Intra-RNC 00 1006 HSDPA Serving Cell Change Success in RNC
HSDPA Mobility Manageme nt
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WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
Feature ID
Feature Name
for Cell 671907 VS.HSDPA.HHO.H2H.AttOutIntraFreq 00
Number of BSC69 WRFD-0106 Intra-Frequency 00 1006 HSDPA Hard Handover Attempts Without Channel Change for Cell
HSDPA Mobility Manageme nt
671907 VS.HSDPA.HHO.H2H.SuccOutIntraFreq 01
Number of BSC69 WRFD-0106 Successful 00 1006 Intra-Frequency HSDPA Hard Handovers Without Channel Change for Cell
HSDPA Mobility Manageme nt
671907 VS.HSDPA.HHO.H2H.AttOutInterFreq 02
Number of BSC69 WRFD-0106 Inter-Frequency 00 1006 HSDPA Hard Handover Attempts Without Channel Change for Cell
HSDPA Mobility Manageme nt
671907 VS.HSDPA.HHO.H2H.SuccOutInterFreq 03
Number of BSC69 WRFD-0106 Successful 00 1006 Inter-Frequency HSDPA Hard Handovers Without Channel Change for Cell
HSDPA Mobility Manageme nt
671907 VS.HSDPA.HHO.NoChR.Att.NCell 08
Number of BSC69 WRFD-0106 HSDSCH-to-HS 00 1006 DSCH hard Handover Requests Without Channel Change Between Neighboring Cells
HSDPA Mobility Manageme nt
671907 VS.HSDPA.HHO.NoChR.Succ.NCell 09
Number of BSC69 WRFD-0106 Successful 00 1006 HSDSCH-to-HS DSCH hard Handovers Without Channel
HSDPA Mobility Manageme nt
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WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
Feature ID
Feature Name
Change Between Neighboring Cells 671907 VS.HSDPA.ServCellChg.Att.NCell 10
Number of BSC69 WRFD-0106 HSDPA Serving 00 1006 Cell Change Attempts Between Neighboring Cells
HSDPA Mobility Manageme nt
671907 VS.HSDPA.ServCellChg.Succ.NCell 11
Number of BSC69 WRFD-0106 Successful 00 1006 HSDPA Serving Cell Changes Between Neighboring Cells
HSDPA Mobility Manageme nt
671911 VS.IRATHO.HSDPA.AttOutPSUTRAN 55
Number of PS BSC69 WRFD-0106 Inter-RAT 00 1006 Outgoing Handover Attempts for HSDPA Services for Cell
HSDPA Mobility Manageme nt
671911 VS.IRATHO.HSDPA.SuccOutPSUTRAN 56
Number of BSC69 WRFD-0106 Successful PS 00 1006 Outgoing Inter-RAT Handovers for HSDPA Services for Cell
HSDPA Mobility Manageme nt
671911 VS.HSDPA.HHO.H2D.AttOutIntraFreq 57
Number of BSC69 WRFD-0106 Intra-Frequency 00 1006 H2D Hard Handover Attempts for Cell
HSDPA Mobility Manageme nt
671911 VS.HSDPA.HHO.H2D.SuccOutIntraFreq 58
Number of BSC69 WRFD-0106 Successful 00 1006 Intra-Frequency H2D Hard Handovers for Cell
HSDPA Mobility Manageme nt
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WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
671911 VS.HSDPA.HHO.H2D.AttOutInterFreq 59
Number of BSC69 WRFD-0106 Inter-Frequency 00 1006 H2D Hard Handover Attempts for Cell
HSDPA Mobility Manageme nt
671911 VS.HSDPA.HHO.H2D.SuccOutInterFreq 60
Number of BSC69 WRFD-0106 Successful 00 1006 Inter-Frequency H2D Hard Handovers for Cell
HSDPA Mobility Manageme nt
671929 VS.RAB.RelReqPS.BE.HSDPA.Cong.Golde Number of BSC69 WRFD-0106 75 n HSDPA RABs 00 10 Carrying Golden WRFD-0201 Users BE Traffic 07 Released Due to Congestion for Cell
HSDPA Introduction Package
671929 VS.RAB.RelReqPS.BE.HSDPA.Cong.Silver Number of BSC69 WRFD-0106 76 HSDPA RABs 00 10 Carrying Silver WRFD-0201 Users BE Traffic 07 Released Due to Congestion for Cell
HSDPA Introduction Package
671929 VS.RAB.RelReqPS.BE.HSDPA.Cong.Copp Number of BSC69 WRFD-0106 77 er HSDPA RABs 00 10 Carrying Copper WRFD-0201 Users BE Traffic 07 Released Due to Congestion for Cell
HSDPA Introduction Package
671934 VS.LCC.HSDPA.CodeAdj.Succ 10
HSDPA Introduction Package
671935 VS.HSDPA.UE.Max.CAT1.6 78
Issue 04 (2013-05-10)
NE
Feature ID
Number of UEs BSC69 WRFD-0106 Performing 00 10 Successful Code WRFD-0201 Adjustment 08 Based on HSDPA for Cell
Feature Name
Overload Control
Overload Control
Overload Control
Code Resource Manageme nt
Maximum BSC69 WRFD-0106 HSDPA UE Number of 00 1002 Category 1 HSDPA UEs with to 28 Category 1-6 in a
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WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
NE
Feature ID
Feature Name
Cell 671935 VS.HSDPA.UE.Max.CAT7.10 81
Maximum BSC69 WRFD-0106 HSDPA UE Number of 00 1002 Category 1 HSDPA UEs with to 28 Category 7-10 in a Cell
671935 VS.HSDPA.UE.Max.CAT11.12 84
Maximum BSC69 WRFD-0106 HSDPA UE Number of 00 1002 Category 1 HSDPA UEs with to 28 Category 11-12 in a Cell
671935 VS.HSDPA.UE.Max.CAT13.14 87
Maximum BSC69 WRFD-0106 HSDPA UE Number of 00 1002 Category 1 HSDPA UEs with to 28 Category 13-14 in a Cell
671935 VS.HSDPA.UE.Max.CAT15.16 90
Maximum BSC69 WRFD-0106 HSDPA UE Number of 00 1002 Category 1 HSDPA UEs with to 28 Category 15-16 in a Cell
671935 VS.HSDPA.UE.Max.CAT17.20 93
Maximum BSC69 WRFD-0106 HSDPA UE Number of 00 1002 Category 1 HSDPA UEs with to 28 Category 17-20 in a Cell
671935 VS.HSDPA.UE.Max.CAT21.24 96
Maximum BSC69 WRFD-0106 HSDPA UE Number of 00 1002 Category 1 HSDPA UEs with to 28 Category 21-24 in a Cell
671954 VS.HSDPA.SHO.ServCellChg.AttOutIur 81
Number of BSC69 WRFD-0106 Inter-RNC 00 1006 HSDPA Serving Cell Change Attempts for Cell
HSDPA Mobility Manageme nt
671954 VS.HSDPA.SHO.ServCellChg.SuccOutIur 82
Number of BSC69 WRFD-0106 Inter-RNC 00 1006 HSDPA Serving Cell Change Success for Cell
HSDPA Mobility Manageme nt
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WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
671954 VS.HSDPA.HHO.H2H.AttOutIur 83
Number of BSC69 WRFD-0106 Inter-RNC 00 1006 HSDPA Hard Handover Attempts Without Channel Change for Cell
HSDPA Mobility Manageme nt
671954 VS.HSDPA.HHO.H2H.SuccOutIur 84
Number of BSC69 WRFD-0106 Successful 00 1006 Inter-RNC HSDPA Hard Handovers Without Channel Change for Cell
HSDPA Mobility Manageme nt
671959 VS.LCC.HSDPA.CodeAdj.Att 92
Number of UEs BSC69 WRFD-0106 Performing Code 00 10 Adjustment WRFD-0201 Based on 07 HSDPA for Cell
HSDPA Introduction Package
NE
Feature ID
Feature Name
Overload Control
672028 VS.HSDPA.MeanChThroughput 94
Mean Downlink BSC69 WRFD-0106 HSDPA Throughput of 00 10 Introduction single HSDPA Package MAC-d Flows for Cell
672042 VS.HSDPA.UE.Mean.CAT1.6 59
Average Number BSC69 WRFD-0106 HSDPA UE of HSDPA UEs 00 1002 Category 1 with Category to 28 1-6 in a Cell
672042 VS.HSDPA.UE.Mean.CAT7.10 60
Average Number BSC69 WRFD-0106 HSDPA UE of HSDPA UEs 00 1002 Category 1 with Category to 28 7-10 in a Cell
672042 VS.HSDPA.UE.Mean.CAT11.12 61
Average Number BSC69 WRFD-0106 HSDPA UE of HSDPA UEs 00 1002 Category 1 with Category to 28 11-12 in a Cell
672042 VS.HSDPA.UE.Mean.CAT13.14 62
Average Number BSC69 WRFD-0106 HSDPA UE of HSDPA UEs 00 1002 Category 1 with Category to 28 13-14 in a Cell
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WCDMA RAN HSDPA
10 Counters
Count Counter Name er ID
Counter Description
672042 VS.HSDPA.UE.Mean.CAT15.16 63
Average Number BSC69 WRFD-0106 HSDPA UE of HSDPA UEs 00 1002 Category 1 with Category to 28 15-16 in a Cell
672042 VS.HSDPA.UE.Mean.CAT17.20 64
Average Number BSC69 WRFD-0106 HSDPA UE of HSDPA UEs 00 1002 Category 1 with Category to 28 17-20 in a Cell
672042 VS.HSDPA.UE.Mean.CAT21.24 65
Average Number BSC69 WRFD-0106 HSDPA UE of HSDPA UEs 00 1002 Category 1 with Category to 28 21-24 in a Cell
733938 VS.HSDPA.MACD.AttSetup 28
Number of BSC69 WRFD-0106 HSDPA HSDPA MAC-d 00 10 Introduction Flow Package Establishment Requests for Cell
734037 VS.HSDPA.HHO.H2D.AttOutIur 64
number of BSC69 WRFD-0106 Inter-RNC H2D 00 1006 Hard Handover Attempts for Cell
HSDPA Mobility Manageme nt
734037 VS.HSDPA.HHO.H2D.SuccOutIur 65
Number of BSC69 WRFD-0106 Successful 00 1006 Inter-RNC H2D Hard Handovers for Cell
HSDPA Mobility Manageme nt
734104 VS.SRNCIubBytesHSDPA.Tx 99
Number of DL BSC69 WRFD-0106 HSDPA Bytes over Iub 00 10 Introduction HSDSCH for Cell Package
734221 VS.HSDPA.RAB.AbnormRel.H2P 67
Number of RABs BSC69 WRFD-0102 Abnormally 00 02 Released for PS WRFD-0106 HSDPA Services 10 during the State Transition from CELL_DCH to CELL_PCH or URA_PCH for Cell
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NE
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Feature ID
Feature Name
UE State in Connected Mode (CELL-DCH , CELL-PCH, URA-PCH, CELL-FAC H) HSDPA Introduction Package
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10 Counters
Count Counter Name er ID
Counter Description
734234 VS.HSDPA.Traffic.HighLoad 62
Number of Bytes BSC69 WRFD-0106 Sent on HSDPA 00 10 MAC-d Flow for WRFD-0106 Cell (Excluding 1008 the Bytes of Low-Traffic Users)
734411 VS.HSDPA.MeanChThrouput.HighLoad 41
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Mean Throughput on HSDPA MAC-d Flow for Cell (Excluding the Data of Low-Traffic Users)
NE
Feature ID
Feature Name HSDPA Introduction Package Interactive and Background Traffic Class on HSDPA
BSC69 WRFD-0106 HSDPA 00 10 Introduction Package WRFD-0106 1008 Interactive and Background Traffic Class on HSDPA
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WCDMA RAN HSDPA
11 Glossary
11 Glossary For the acronyms, abbreviations, terms, and definitions, see the Glossary.
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WCDMA RAN HSDPA
12 Reference Documents
12 Reference Documents [1] 3GPP TS 25.214, "Physical layer procedures (FDD)" [2] 3GPP TS 25.306, "UE Radio Access capabilities" [3] 3GPP TS 25.308, "UTRA High Speed Downlink Packet Access (HSDPA); Overall description" [4] 3GPP TS 25.433, "UTRAN Iub interface NBAP signaling" [5] 3GPP TS 25.435, "UTRAN Iub interface user plane protocols for CCH data flows" [6] Transmission Resource Management Feature Parameter Description [7] Load Control Feature Parameter Description [8] Call Admission Control Feature Parameter Description [9] Directed Retry Decision Feature Parameter Description [10] Differentiated HSPA Service Feature Parameter Description [11] Radio Bearers Feature Parameter Description [12] State Transition Feature Parameter Description [13] Power Control Feature Parameter Description [14] Handover Feature Parameter Description [15] HSPA Evolution Feature Parameter Description [16] QoS Management Feature Parameter Description [17] License Management Feature Parameter Description
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