eRAN
Admission and Congestion Control Feature Parameter Description Issue
03
Date
2015-11-03
HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2015. 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.
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Contents
Contents 1 About This Document.................................................................................................................. 1 1.1 Scope.............................................................................................................................................................................. 1 1.2 Intended Audience.......................................................................................................................................................... 1 1.3 Change History............................................................................................................................................................... 2 1.4 Differences Between eNodeB Types.............................................................................................................................. 3
2 Overview......................................................................................................................................... 4 3 Admission Control........................................................................................................................ 5 3.1 User Admission.............................................................................................................................................................. 6 3.2 Service Admission.......................................................................................................................................................... 9 3.2.1 Non-GBR Service Admission....................................................................................................................................11 3.2.2 GBR Service Admission............................................................................................................................................11 3.2.2.1 UE Capability Evaluation....................................................................................................................................... 11 3.2.2.2 Cell Congestion Indication..................................................................................................................................... 11 3.2.2.3 Admission Based on QoS Satisfaction Rates......................................................................................................... 12 3.3 Preemption....................................................................................................................................................................17 3.3.1 User Preemption........................................................................................................................................................ 17 3.3.2 Service Preemption....................................................................................................................................................19 3.4 Redirection....................................................................................................................................................................20
4 Congestion Control..................................................................................................................... 21 4.1 Load Status Evaluation................................................................................................................................................. 23 4.2 Release of Low-Priority GBR Services........................................................................................................................23
5 Related Features...........................................................................................................................24 5.1 Features Related to LBFD-002023 Admission Control............................................................................................... 24 5.2 Features Related to LOFD-00102901 Radio/transport Resource Pre-emption............................................................ 24 5.3 Features Related to LBFD-002024 Congestion Control.............................................................................................. 25
6 Network Impact........................................................................................................................... 26 6.1 LBFD-002023 Admission Control............................................................................................................................... 26 6.2 LOFD-00102901 Radio/transport resource pre-emption............................................................................................. 26 6.3 LBFD-002024 Congestion Control.............................................................................................................................. 27
7 Engineering Guidelines............................................................................................................. 28 7.1 When to Use Admission and Congestion Control........................................................................................................28 Issue 03 (2015-11-03)
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7.2 Required Information................................................................................................................................................... 28 7.3 Planning........................................................................................................................................................................ 28 7.3.1 RF Planning............................................................................................................................................................... 28 7.3.2 Network Planning...................................................................................................................................................... 28 7.3.3 Hardware Planning.................................................................................................................................................... 29 7.4 Deployment of Admission Control...............................................................................................................................29 7.4.1 Requirements............................................................................................................................................................. 29 7.4.2 Data Preparation........................................................................................................................................................ 29 7.4.3 Activation.................................................................................................................................................................. 36 7.4.4 Activation Observation..............................................................................................................................................41 7.4.5 Deactivation...............................................................................................................................................................44 7.5 Deployment of Congestion Control..............................................................................................................................46 7.5.1 Deployment Requirements........................................................................................................................................ 46 7.5.2 Data Preparation........................................................................................................................................................ 47 7.5.3 Activation.................................................................................................................................................................. 54 7.5.4 Activation Observation..............................................................................................................................................57 7.5.5 Deactivation...............................................................................................................................................................57 7.6 Performance Monitoring...............................................................................................................................................58 7.7 Parameter Optimization................................................................................................................................................ 59 7.8 Troubleshooting............................................................................................................................................................ 60 7.8.1 Admission Control.....................................................................................................................................................60 7.8.2 Congestion Control....................................................................................................................................................60
8 Parameters..................................................................................................................................... 61 9 Counters........................................................................................................................................ 79 10 Glossary..................................................................................................................................... 107 11 Reference Documents............................................................................................................. 108
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1 About This Document
About This Document
1.1 Scope This document describes admission and congestion control, including its technical principles, related features, network impact, and engineering guidelines. This document covers the following features: l
LBFD-002023 Admission Control
l
LOFD-001029 Enhanced Admission Control
l
LOFD-00102901 Radio/transport Resource Preemption
l
LBFD-002024 Congestion Control
Any managed objects (MOs), parameters, alarms, or counters described herein correspond to the software release delivered with this document. Any future updates will be described in the product documentation delivered with future software releases. This document applies only to LTE FDD. Any "LTE" in this document refers to LTE FDD, and "eNodeB" refers to LTE FDD eNodeB. This document applies to the following types of eNodeBs. eNodeB Type
Model
Macro
3900 series eNodeBs
Micro
BTS3202E
LampSite
DBS3900 LampSite
1.2 Intended Audience This document is intended for personnel who: l Issue 03 (2015-11-03)
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1 About This Document
Work with Huawei products
1.3 Change History This section provides information about the changes in different document versions. There are two types of changes: l
Feature change Changes in features and parameters of a specified version as well as the affected entities
l
Editorial change Changes in wording or addition of information and any related parameters affected by editorial changes. Editorial change does not specify the affected entities.
eRAN8.1 03 (2015-11-03) This issue includes the following changes. Change Type
Change Description
Parameter Change
Affected Entity
Feature change
None
None
N/A
Editorial change
Modified monitoring methods of admission and congestion control observation. For details, see the following sections:
None
-
l 7.4.4 Activation Observation l 7.5.4 Activation Observation
eRAN8.1 02 (2015-06-30) This issue includes the following changes.
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Change Type
Change Description
Parameter Change
Affected Entity
Feature change
None
None
Macro/ Micro/ LampSite
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eRAN Admission and Congestion Control Feature Parameter Description
1 About This Document
Change Type
Change Description
Parameter Change
Affected Entity
Editorial change
Revised descriptions of usernumber-based preemption. For details, see the following sections:
Added the InterOpUeNumPreemptSwitch(InterOpUeNumPree mptSwitch) option of the ENodeBAlgoSwitch.UeNu mPreemptSwitch parameter.
Macro/ Micro/ LampSite
l 3.3.1 User Preemption l 7.4.2 Data Preparation l 7.4.3 Activation l 7.4.5 Deactivation
eRAN8.1 01 (2015-03-23) This issue does not include any changes.
eRAN8.1 Draft A (2015-01-15) Compared with Issue 01 (2014-04-26) of eRAN7.0, Draft A (2015-01-15) of eRAN8.1 includes the following changes. Change Type
Change Description
Paramete r Change
Affected Entity
Feature change
Added performance counters related to admission control and preemption. For details, see 7.6 Performance Monitoring.
None
Macro/Micro/LampSite
Editorial change
Revised the description in 2 Overview.
None
-
1.4 Differences Between eNodeB Types The features described in this document are implemented in the same way on macro, micro, and LampSite eNodeBs.
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2 Overview
2
Overview
Introduction During admission control, an eNodeB decides whether to accept a guaranteed bit rate (GBR) service request (either new service or handover) based on the physical resource block (PRB) usage and the quality of service (QoS) satisfaction rate of GBR services. During congestion control, the eNodeB controls system load to ensure a high overall QoS satisfaction rate and stable system operation.
Benefits Load control maintains system stability by rejecting certain admission requests or releasing some admitted services, while maximizing resource usage. Load control ensures the quality of admitted services by controlling the cell load. It also provides the required QoS for individual radio bearers and maximizes cell capacity.
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3
Admission Control
This chapter describes the basic feature LBFD-002023 Admission Control. Admission control is categorized into radio-resource-based admission control and transportresource-based admission control. This document describes radio-resource-based admission control. For details about transport-resource-based admission control, see Transport Resource Management Feature Parameter Description. For details about how to configure this feature, see 7 Engineering Guidelines. Radio-resource-based admission control is categorized into user admission and service admission. l
When a piece of user equipment (UE) requests access to a network, that is, when a UE requests setup of a radio resource control (RRC) connection or requests an incoming handover, the E-UTRAN NodeB (eNodeB) performs the user admission procedure.
l
When a UE that has accessed a cell requests a new service, that is, when a UE requests establishment of an E-UTRAN radio access bearer (E-RAB) or requests an incoming handover, the eNodeB performs the service admission procedure.
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3.1 User Admission When a UE requests to access a network, that is, when a UE requests setup of an RRC connection or requests an incoming handover, the eNodeB performs the user admission procedure. Figure 3-1 shows the user admission procedure.
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Figure 3-1 User admission procedure
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The user admission procedure is as follows: 1.
The eNodeB checks whether the CPU resource is limited. If the CPU resource is limited, the eNodeB rejects the access request. For details about how the eNodeB checks whether the CPU resource is limited, see Flow Control Feature Parameter Description.
2.
The eNodeB checks whether the sounding reference signal (SRS) resource is successfully allocated. For details about the SRS resource allocation principle, see Physical Channel Resource Management Feature Parameter Description. The eNodeB performs this step differently based on whether LBBPc or BBP of another type is configured.
l
If the LBBPc is configured, the eNodeB performs this step as follows:
l
–
If the SRS resource is configured for the cell, the cell supports uplink timing measurement using only the SRS. Therefore, if the SRS resource allocation fails, the uplink timing of the UE may not be accurate and the eNodeB rejects the access request.
–
If the SRS resource is not configured for the cell, the cell supports uplink timing measurement using the demodulation reference signal (DMRS). Even if the SRS resource is not allocated, the eNodeB accepts the access request.
Other types of BBPs support uplink timing measurement using the DMRS. Even if the SRS resource allocation fails, the uplink timing of the UE is accurate and the eNodeB does not reject the access request. NOTE
LampSite eNodeBs do not support the LBBPc.
3.
The eNodeB checks whether the PUCCH resource is successfully allocated. If the PUCCH resource allocation fails, the eNodeB rejects the access request. For details about the PUCCH resource allocation principle, see Physical Channel Resource Management Feature Parameter Description.
4.
The eNodeB checks whether the number of users is limited. If the number of admitted users has reached the maximum or the licensed user number, the eNodeB determines that the number of users is limited and the admission fails.
5.
For the user that is admitted by the eNodeB, if the UE requests a service (that is, to establish an E-RAB), the eNodeB performs the service admission procedure. For details, see 3.2 Service Admission.
6.
If the UE's access request is rejected by the eNodeB, the UE can initiate a user preemption procedure. For details, see 3.3.1 User Preemption. NOTE
The number of emergency UEs that can be admitted is restricted only by the maximum number of UEs supported by the cell rather than by the licensed number of UEs so that emergency UEs can preferentially be admitted. In the RAN sharing scenario, the licensed user number varies depending on operators. Therefore, the eNodeB temporarily allows the access to obtain the PLMN ID to determine whether the licensed user number is limited. If the licensed user number is limited and the preemption based on user number fails, the eNodeB rejects the initial context setup request of the temporarily accessed user and releases the user.
In user admission, UE numbers are reserved for privileged UEs to increase their admission success rates. Privileged UEs include emergency UEs and high-priority UEs with a "highPriorityAccess" cause value in an RRC connection establishment request. Other UEs are common UEs. Issue 03 (2015-11-03)
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Privileged UEs are defined because resource preemption is not allowed for operators in some countries and areas by local regulations but high-priority UEs of these operators need to be preferentially admitted. The eNodeB determines whether to admit privileged UEs based only on the maximum number of UEs that can be supported by the cell instead of the licensed user number. Therefore, user-number-reservation-based admission control can be enabled to reserve resources for privileged UEs to ensure the preferential admission of privileged UEs. The UE numbers reserved for privileged UEs are controlled by the CellRacThd.AcReservedUserNumber parameter. l
If the CellRacThd.AcReservedUserNumber parameter is set to 0, user-numberreservation-based admission control is disabled. In this case, the eNodeB rejects the access requests of high-priority UEs and common UEs when the number of admitted users has reached the licensed user number. The eNodeB rejects the access requests of both privileged UEs and common UEs when the number of admitted users has reached the maximum number.
l
If the CellRacThd.AcReservedUserNumber parameter is set to a non-zero value, UE numbers are reserved for privileged UEs. In this case, the eNodeB accepts the access requests of high-priority UEs but rejects the access requests of common UEs when the number of admitted users has reached the licensed user number. The eNodeB admits privileged UEs and common UEs based on different UE number requirements. –
The number of privileged UEs that can be admitted is based on the maximum number of UEs supported by the cell.
–
The number of common UEs that can be admitted is the difference between the maximum number of UEs supported by the cell and the CellRacThd.AcReservedUserNumber parameter value. The CellRacThd.AcReservedUserNumber parameter specifies the UE numbers reserved for privileged UEs.
If the CellRacThd.AcReservedUserNumber parameter is set to a non-zero value, it is recommended that SRS resources and PUCCH resources be set to default values. In this case, neither SRS resources nor PUCCH resources will directly cause user admission failures. It is recommended that the ARP values of the bearers for UEs whose cause value for an RRC connection establishment request is "highPriorityAccess" and that for emergency UEs be set to the same. This ensures the GBR services of these high-priority UEs are directly admitted successfully.
3.2 Service Admission When a UE that has accessed a cell requests setup of a new service, (that is, when a UE requests to establish an E-RAB or requests a handover to the cell,) the eNodeB performs the service admission procedure. Figure 3-2 shows the service admission procedure.
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Figure 3-2 Service admission procedure
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3.2.1 Non-GBR Service Admission For a non-GBR service, the admission procedure is as follows: l
If the SRS or PUCCH resource allocation fails, the eNodeB rejects the access request.
l
If both the SRS resource allocation and the PUCCH resource allocation are successful, the eNodeB accepts the request. In the admission procedure, the eNodeB does not check the UE capabilities or whether the cell is congested, or make the admission decision based on the QoS satisfaction rates. NOTE
SRS resource allocation is required only if the SRS resource is configured for the LBBPc.
3.2.2 GBR Service Admission For a GBR service, its QoS has to be guaranteed. The admission procedure is as follows: l
If the SRS or PUCCH resource allocation fails, the eNodeB rejects the access request.
l
If both the SRS resource allocation and the PUCCH resource allocation are successful, the eNodeB makes the admission decision as follows: –
For an emergency call, the eNodeB accepts the request.
–
For a non-emergency call, the eNodeB checks the UE capabilities and whether the cell is congested, and then makes the decision based on the QoS satisfaction rates.
NOTE
SRS resource allocation is required only if the SRS resource is configured for the LBBPc.
3.2.2.1 UE Capability Evaluation The UE reports its capabilities to the evolved packet core (EPC) each time the UE attaches to the network. When the UE needs to update its capabilities, it performs detach and then attach procedures to report the new capabilities to the EPC. If the eNodeB does not know the UE capabilities, it initiates a UE capability transfer procedure to request the UE to report its capabilities to the eNodeB and the EPC. For details, see section 5.6.3 in 3GPP TS 36.331 V10.6.0 (2012-06). When the UE initiates a new service request, the Mobility Management Entity (MME) sends an INITIAL CONTEXT SETUP REQUEST message to the eNodeB over the S1 interface, indicating the UE capabilities and bearer parameters. For details about UE capabilities, see section 4.1 in 3GPP TS 36.306 V10.6.0 (2012-06). The eNodeB stores the information and checks whether the UE supports the specified bearer. If the UE does not support the bearer parameters, the eNodeB rejects the access request. The major concern about the UE capabilities is whether the total rate of various services exceeds the maximum UE capability, indicated by the maximum transport block size for the UE. For details, see section 8.3.1 in 3GPP TS 36.413 V10.6.0 (2012-06).
3.2.2.2 Cell Congestion Indication Cell congestion indications are provided by congestion control to indicate that the Uu interface resources are insufficient. There are four types of indications: l Issue 03 (2015-11-03)
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3 Admission Control
Downlink Congested and Uplink Not Congested Uplink and Downlink Congested Uplink and Downlink Congestion Cleared
If a GBR service access request arrives, the eNodeB rejects the access request (either new services or handovers) regardless of whether congestion occurs in the downlink or uplink.
3.2.2.3 Admission Based on QoS Satisfaction Rates The QoS satisfaction rate of GBR services in a cell reflects the QoS conditions of admitted GBR services in the cell. It is used for evaluating cell load and making admission decisions. In the downlink, radio resources such as physical resource blocks (PRBs) and power are shared by all UEs in a cell. Decreases in the downlink QoS satisfaction rates indicate limited radio resources. The eNodeB performs downlink admission control based only on QoS satisfaction rates. In the uplink, radio resources may not be fully used because of a limitation on uplink power. The eNodeB performs uplink admission control based on the PRB usage, wait time for uplink scheduling of voice over IP (VoIP) services, and QoS satisfaction rates. Figure 3-3 and Figure 3-4 show the downlink and uplink admission procedures for GBR services based on QoS satisfaction rates, respectively. Figure 3-3 Downlink admission procedure for GBR services
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Figure 3-4 Uplink admission procedure for GBR services
PRB Usage Monitoring By monitoring the PRB usage of services with high scheduling priorities in the uplink, the eNodeB learns about the usage of uplink time-frequency resources in the cell and preliminarily evaluates the cell load. In the uplink, services with high scheduling priorities Issue 03 (2015-11-03)
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include GBR services and the signaling and services whose scheduling priorities are higher than GBR services, such as retransmissions, signaling radio bearers (SRBs), and scheduling requests (SRs). The Media Access Control (MAC) layer calculates the PRB usage using the following formula:
After filtering, the eNodeB compares the calculated PRB usage with the uplink PRB usage thresholds CellRacThd.UlRbHighThd and CellRacThd.UlRbLowThd and then determines the PRB usage status. Using both the upper and lower thresholds prevents a possible ping-pong effect.
Evaluation of the Wait Time for Uplink Scheduling of VoIP Services The wait time starts when a VoIP service requests uplink resources and stops when the VoIP service is allocated uplink resources. eNodeBs regard wait time longer than 100 ms to be too long.
Evaluation of QoS Satisfaction Rates The QoS class identifier (QCI) of a service reflects the QoS requirements of that service, and each QCI corresponds to a unique set of QoS parameters. For details, see section 6.1.7 in 3GPP TS 23.203 V10.7.0 (2012-06). This protocol describes the characteristics of different services and the standards for evaluating their QoS satisfaction rates in the LTE QoS mechanism. In the downlink, QoS satisfaction rates are evaluated based on the logical channels corresponding to the QCIs. In the uplink, however, QoS satisfaction rates are evaluated based on logical channel groups. A logical channel group is defined as a group of radio bearers with similar QoS requirements. For details about logical channel groups, see section 5.4.5 in 3GPP TS 36.321 V10.5.0 (2012-03). The reason for the difference between the uplink and the downlink is that the eNodeB cannot estimate the amount of buffered data to be transmitted through each logical channel on the UE side. The evaluation method for the uplink helps reduce signaling load and the number of Buffer Status Reports (BSRs). The uplink and downlink QoS satisfaction rates of GBR services are calculated per QCI, and admission thresholds are also set per QCI to achieve admission differentiation between QCIs.
Evaluation of Downlink QoS Satisfaction Rates Services with QCI 1 are VoIP services. Their downlink QoS satisfaction rate is represented by the average downlink satisfaction rate of VoIP services in a cell, that is, the ratio of the sum of the downlink satisfaction rates of all VoIP services in a cell to the total number of VoIP services in a cell. The downlink QoS satisfaction rate of a single VoIP service is calculated by using the following formula:
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A voice packet is satisfactory if it is buffered for a time less than 50 ms. Services with QCIs 2 to 4 are GBR services. The downlink QoS satisfaction rate of GBR services with QCI 2, 3, or 4 is calculated by using the following formula:
where i = 2, 3, or 4 NOTE
Section 6.1.7 in 3GPP TS 23.203 V11.6.0 (2012-06) provides an example mapping between QCIs and service types but does not provide definitions of the mapping. Huawei implements the mapping according to the examples, where QCI 1 represents VoIP services.
Evaluation of Uplink QoS Satisfaction Rates Services with QCI 1 are VoIP services. Their uplink QoS satisfaction rate is represented by the average uplink satisfaction rate of VoIP services in a cell, that is, the ratio of the sum of the uplink satisfaction rates of all VoIP services in a cell to the total number of VoIP services in a cell. The uplink QoS satisfaction rate of a single VoIP service is calculated by using the following formula:
NOTE
The uplink QoS satisfaction rate of a VoIP service is calculated differently from the downlink QoS satisfaction rate of a VoIP service. In the uplink, the eNodeB cannot obtain the time for which voice packets are buffered on the UE. However, if an uplink voice packet is buffered on the UE for a time longer than the length of the timer for discarding Packet Data Convergence Protocol (PDCP) PDUs, the voice packet is discarded. Therefore, the percentage of PDCP PDUs successfully received by the eNodeB is used to determine whether there are timeout voice packets. For details, see section 5.4 "PDCP discard" in 3GPP 36.323 V8.6.0.
Services with QCIs 2 to 4 are GBR services. Their uplink QoS satisfaction rate is evaluated for each logical channel group. The QoS satisfaction rate is represented by the ratio of the transmitted data to the total amount of data to be transmitted. A higher ratio indicates a higher QoS satisfaction rate. The uplink QoS satisfaction rate of GBR services with QCIs 2 to 4 is calculated by using the following formula:
QCIs 1 to 4 can be mapped to logical channel groups. For details about the mapping, see Scheduling Feature Parameter Description. If QCIs 2 to 4 are mapped to logical channel Issue 03 (2015-11-03)
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group 2, the uplink QoS satisfaction rates for services with QCIs 2 to 4 are represented by the satisfaction rate for logical channel group 2.
Admission Decision Based on QoS Satisfaction Rates The admission threshold for handovers is lower than that for new services. The eNodeB defines four handover thresholds QcixHoThd (x = 1–4) for the QCIs. Based on the handover thresholds, service differentiation can be achieved by setting admission offsets for new gold-, silver-, and bronze-level services, based on the mapping between ARP values and service priorities. The admission offsets are CellRacThd.NewGoldServiceOffset, CellRacThd.NewSilverServiceOffset, and CellRacThd.NewCopperServiceOffset. These offset values apply to both the uplink and downlink. The eNodeB categorizes services based on their ARP values. The ARP values are mapped to three service priorities: gold, silver, and bronze. The mapping can be adjusted by setting CellRacThd.GoldServiceArpThd (the ARP threshold for gold-level services) or CellRacThd.SilverServiceArpThd (the ARP threshold for silver-level services). The ARP values beyond the ranges defined by these two parameters correspond to bronze-level services. A small ARP value indicates a high priority level. Table 3-1 shows a typical mapping between the ARP values and the service priorities. Table 3-1 Typical mapping between the ARP values and the service priorities ARP Value
Service Priority
1–5
Gold
6–10
Silver
11–15
Bronze
For details about ARPs, see section 4.7.3 in 3GPP TS 23.401 V10.8.0 (2012-06). For GBR services whose QCIs range from 1 to 4, the admission thresholds for handovers and new services corresponding to a QCI are as follows: l
The admission threshold for handovers is QcixHoThd.
l
The admission threshold for new gold-level services is QcixHoThd plus CellRacThd.NewGoldServiceOffset.
l
The admission threshold for new silver-level services is QcixHoThd plus CellRacThd.NewSilverServiceOffset.
l
The admission threshold for new bronze-level services is QcixHoThd plus CellRacThd.NewCopperServiceOffset.
The relationship between these thresholds is as follows: QcixHoThd ≤ QcixHoThd + CellRacThd.NewGoldServiceOffset ≤ QcixHoThd + CellRacThd.NewSilverServiceOffset ≤ QcixHoThd + CellRacThd.NewCopperServiceOffset ≤ 100% Assume that SQCI = x (x = 1–4) represents the QoS satisfaction rate for QCI x. The following rules apply to downlink admission evaluation: Issue 03 (2015-11-03)
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For SQCI = x ≥ QcixHoThd + CellRacThd.NewCopperServiceOffset If the QoS satisfaction rates of all QCIs except QCI x are higher than the corresponding handover admission thresholds, then the eNodeB accepts requests for new gold-, silver-, and bronze-level services and handovers with QCI x. If the QoS satisfaction rate of any QCI is lower than the corresponding handover admission threshold, then the eNodeB rejects requests for new gold-, silver-, and bronzelevel services with QCI x but accepts requests for incoming handovers with QCI x.
l
For QcixHoThd + CellRacThd.NewCopperServiceOffset > SQCI = x ≥ QcixHoThd + CellRacThd.NewSilverServiceOffset If the QoS satisfaction rates of all QCIs except QCI x are higher than the corresponding handover admission thresholds, then the eNodeB accepts requests for new gold- and silver-level services and handovers with QCI x but rejects requests for new bronze-level services with QCI x. If the QoS satisfaction rate of any QCI is lower than the corresponding handover admission threshold, then the eNodeB rejects requests for new gold-, silver-, and bronzelevel services with QCI x but accepts requests for incoming handovers with QCI x.
l
For QcixHoThd + CellRacThd.NewSilverServiceOffset > SQCI = x ≥ QcixHoThd + CellRacThd.NewGoldServiceOffset If the QoS satisfaction rates of all QCIs except QCI x are higher than the corresponding handover admission thresholds, then the eNodeB accepts requests for new gold-level services and handovers with QCI x but rejects requests for new silver- and bronze-level services with QCI x. If the QoS satisfaction rate of any QCI is lower than the corresponding handover admission threshold, then the eNodeB rejects requests for new gold-, silver-, and bronzelevel services with QCI x but accepts requests for incoming handovers with QCI x.
l
For QcixHoThd + CellRacThd.NewGoldServiceOffset > SQCI = x ≥ QcixHoThd The eNodeB rejects requests for new gold-, silver-, bronze-level services with QCI x but accepts requests for handovers with QCI x.
l
For QcixHoThd > SQCI = x The eNodeB rejects requests for new services and handovers with QCI x.
The rules for uplink admission evaluation are similar to the rules for downlink admission evaluation. The difference is that the eNodeB evaluates the QoS satisfaction rates of logical channel groups when admitting GBR services in the uplink. For details, see Evaluation of Uplink QoS Satisfaction Rates.
3.3 Preemption This section describes radio resource preemption in the optional feature LOFD-00102901 Radio/transport Resource Pre-emption. For details about transport resource preemption, see Transport Resource Management Feature Parameter Description.
3.3.1 User Preemption When an emergency UE accesses the network and fails to be allocated SRS or PUCCH resources, the UE preempts the resources of the common UE in the synchronization state and Issue 03 (2015-11-03)
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with the lowest ARP in the same cell. If the common UE has multiple services with different ARPs, the highest ARP is considered as the ARP of the UE. When a UE with a high ARP or an emergency UE attempts to access to the network and the eNodeB rejects the access attempt due to the limited number of UEs: l
If the IntraOpUeNumPreemptSwitch(IntraOpUeNumPreemptSwitch) option of the ENodeBAlgoSwitch.UeNumPreemptSwitch parameter is selected, this UE preempts the resources of common UEs with low ARPs served by the same operator. The preemption is not allowed if this option is deselected.
l
If the InterOpUeNumPreemptSwitch(InterOpUeNumPreemptSwitch) option of the ENodeBAlgoSwitch.UeNumPreemptSwitch parameter is selected, this UE preempts the resources of common UEs with low ARPs served by different operators. The preemption is not allowed if this option is deselected. NOTE
In the user-number-based preemption, the eNodeB establishes a temporary RRC connection for any UE requesting access to the eNodeB in order to obtain the UE's ARP attributes.
In the user-number-based preemption, the resources for the following types of low-ARP UEs are preempted in descending order of priority: l
Low-ARP UEs in the out-of-synchronization state performing non-GBR services
l
Low-ARP UEs in the out-of-synchronization state performing GBR services
l
Low-ARP UEs in the synchronized state performing non-GBR services
l
Low-ARP UEs in the synchronized state performing GBR services
If the preemption succeeds and redirection is enabled, the eNodeB performs a redirection for the UE whose resource is preempted. If the preemption request is rejected and redirection is enabled, the eNodeB performs a redirection for the UE that requests preemption. For details about redirection procedure, see 3.4 Redirection. The ARP value of a bearer of a UE is generally allocated by the EPC. The EPC allocates a low ARP value for the bearer of a CSFB UE. When the licensed number of UEs is limited, such a UE fails to preempt resources and then experiences an admission failure. CSFB UEs can be classified as emergency CSFB UEs and common CSFB UEs. If the value of the IE CS Fallback Indicator in the INITIAL CONTEXT SETUP REQUEST message sent from the EPC to the eNodeB is CS Fallback High Priority, the UE is an emergency CSFB UE; otherwise, the UE is a common CSFB UE. You can set the CsFallbackPolicyCfg.CsfbUserArpCfgSwitch parameter to increase the ARP values of bearers for CSFB UEs. The IEs contained in the ARP values of default bearers for CSFB UEs are configured as follows: l
Pre-emption Capability –
l
Pre-emption Vulnerability –
l
The value of this IE for CSFB UEs is not pre-emptable, indicating that resources of the UEs cannot be preempted by other UEs.
Priority Level –
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The value of this IE for emergency CSFB UEs is 1. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
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–
3 Admission Control
The ARP IE priority level for common CSFB UEs can be specified by the CsFallbackPolicyCfg.NormalCsfbUserArp parameter.
To ensure that common CSFB UEs are capable of preempting users when the number of UEs allowed to be admitted is limited, it is recommended that the bearers of common CSFB UEs be configured with high ARP priorities.
3.3.2 Service Preemption When a new emergency service requests preemption and fails to be allocated SRS or PUCCH resources, the service preempts the resources of the common UE in the synchronization state and with the lowest ARP in the same cell. If the common UE has multiple services with different ARPs, the highest ARP is considered as the ARP of the UE. When a GBR service with a high ARP requests service preemption, it preempts GBR services with low ARPs if the request is rejected because the cell is congested or the admission based on the QoS satisfaction rates fails. Service preemption is triggered if one of the conditions shown in Figure 3-3 or Figure 3-4 is met. Service preemption is enabled by selecting the PreemptionSwitch(PreemptionSwitch) option of the CellAlgoSwitch.RacAlgoSwitch parameter. Note that SRBs, IP multimedia subsystem (IMS) signaling, and emergency calls cannot be preempted. A service can preempt other services only if its ARP information element (IE) "pre-emption capability" is "may trigger pre-emption". If a service is not capable of preemption, it cannot be admitted. If service A is capable of preemption, it can preempt a service B that meets all of the following conditions: l
Only non-emergency GBR services can be preempted.
l
The value of the ARP IE "pre-emption vulnerability" of service B is "pre-emptable".
l
The value of the ARP IE "priority level" of service B is greater than that of service A.
l
If service B is a GBR service, the resources allocated to it are greater than or equal to the resources required by GBR service A.
Preemption fails if any one of the preceding conditions is not met. If none of the GBR services of a UE is admitted or preemption for all GBR services of a UE fails, the UE is redirected if redirection is enabled. For details about operations related to redirection, see 3.4 Redirection. NOTE
A service whose ARP value is 15 can neither preempt other services nor be preempted by other services. For details, see section 9.2.1.60 in 3GPP TS 36.413 V10.6.0 (2012-06).
During the preemption procedure, the eNodeB first groups GBR services with low priorities and then selects services that can be preempted from this group. The procedure is as follows: 1.
The eNodeB groups the GBR services with low priorities. The eNodeB first selects releasable GBR services and then groups the services with the lowest priorities among them. A releasable GBR service must meet the following conditions:
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The value of the ARP IE "pre-emption vulnerability" of the service is "preemptable".
–
The service is not an emergency call.
–
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The eNodeB sorts these GBR services based on the following rule: The service with the largest value of the ARP IE "priority level" has the lowest priority and ranks first. If two services have the same "priority level" value, the service that occupies more PRBs ranks ahead of the other. 2.
The eNodeB selects services to be preempted. The eNodeB estimates the number of PRBs required by a preempting service based on the average spectral efficiency of the cell. The eNodeB calculates the number of PRBs released from the group of GBR services with low priorities. The calculation stops after the number of released PRBs meets the requirements of the preempting service. The preemption fails if no service can be preempted or the number of PRBs released from ten preempted services does not meet the requirements of the preempting service. If the GBR service to be preempted is the only GBR service on a UE, the UE can be redirected when redirection is enabled. For details about redirection, see 3.4 Redirection.
3.4 Redirection During a redirection, the eNodeB sends the UE an RRCConnectionRelease message that includes the target frequency information for the redirection. Redirection is enabled if LoadBasedSwitch under the ENodeBAlgoSwitch.RedirectSwitch parameter is on. The eNodeB selects the target frequency as follows: l
If a subscriber profile ID (SPID) has been specified for the UE, the eNodeB determines the UE-supported RATs and frequency bands and checks for the mapping between frequencies and priorities in the associated SPID configuration. The eNodeB then selects the highest-priority frequency except the serving frequency as the target frequency. For details about SPIDs, see Flexible User Steering Feature Parameter Description.
l
If an SPID is not specified for the UE or frequency priorities are not set in the SPID configuration for the UE, the eNodeB considers the operator-specific dedicated cellreselection priorities for frequencies. Among the UE-supported frequency bands, the eNodeB selects the highest-priority frequency except the serving frequency as the target frequency. The priorities are specified in the EutranNFreqRanShare, UtranRanShare, and GeranRanShare MOs or in the EutranNFreqSCellOp, UtranNFreqSCellOp, GeranNFGroupSCellOp, and Cdma2000BcSCellOp MOs.
l
If an SPID is not specified for the UE or frequency priorities are not set in the SPID configuration for the UE, and if operator-specific dedicated cell-reselection priorities are not specified, the eNodeB considers common cell-reselection priorities. Among the UEsupported frequency bands, the eNodeB selects the highest-priority frequency except the serving frequency as the target frequency. The priorities are specified in the EutranInterNFreq, UtranNFreq, and GeranNfreqGroup MOs. NOTE
If the admission fails for a UE requesting a handover, the UE cannot be redirected to another cell.
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4
Congestion Control
This chapter describes the basic feature LBFD-002024 Congestion Control. Congestion control reduces congestion caused by an insufficiency of radio resources or transport resources. This document describes only the former. For details about the latter, see Transport Resource Management Feature Parameter Description. Congestion can be prevented in most cases if admission control is performed. However, congestion may occur in the following cases: l
The services are diverse and the data rates of certain services vary significantly. Variations in the data volume inevitably affect the cell load.
l
The radio conditions vary because of user mobility. The same service at the same data rate may require different radio resources on different occasions.
In these two cases, the cell load varies and the quality of admitted services gets affected, even if the number of users in the cell does not change. The congestion control algorithm is required to handle possible congestion. Figure 4-1 shows the congestion control process. Congestion control is enabled if the DlLdcSwitch(dlLdcSwitch) or UlLdcSwitch(ulLdcSwitch) check box under the CellAlgoSwitch.RacAlgoSwitch parameter is selected.
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Figure 4-1 Congestion control process
When the cell is congested, congestion control releases the GBR services with low priorities first to make some resources available. The release reduces system load and helps ensure the quality of other admitted services. To ensure continuity and stability of emergency calls, the eNodeB does not release emergency calls. For details about how to configure this feature, see 7 Engineering Guidelines.
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4.1 Load Status Evaluation The eNodeB checks the load status by monitoring the PRB usage and QoS satisfaction rate. The cell status can be either of the following: l
Congested state A cell is regarded as congested in the downlink if the downlink QoS satisfaction rate of one or more QCIs is lower than the relevant congestion threshold. A cell is regarded as congested in the uplink if the uplink QoS satisfaction rate of one or more QCIs is lower than the relevant congestion threshold and the uplink PRB usage is high, or if the uplink QoS satisfaction rate of one or more QCIs is lower than the relevant congestion threshold and the wait time for uplink scheduling of VoIP services is too long. When the cell is congested, the congestion control algorithm instructs the admission control algorithm to reject all access requests and, in addition, takes actions to reduce cell load. When the QoS satisfaction rates of QCIs 1, 2, 3, and 4 all become higher than the sum of the related congestion threshold and CellRacThd.CongRelOffset, the cell returns to the normal state. The congestion thresholds are specified by QcixCongThd (x = 1–4), that is, by the CellRacThd.Qci1CongThd, CellRacThd.Qci2CongThd, CellRacThd.Qci3CongThd, and CellRacThd.Qci4CongThd parameters. For each QCI, the sum of QcixCongThd (x = 1–4) and CellRacThd.CongRelOffset must be lower than the corresponding QcixHoThd (x = 1–4).
l
Normal state The cell is regarded as normal if the QoS satisfaction rates of QCIs 1, 2, 3, and 4 are all higher than the corresponding QcixCongThd (x = 1–4).
4.2 Release of Low-Priority GBR Services f a cell is congested, congestion control selects a service that ranks the first in the group of admitted low-priority GBR services and releases the selected service. If the only GBR service on the selected UE is released and redirection is enabled, the eNodeB redirects the UE to another frequency or RAT, increasing the access success rate of the UE. For details about redirection, see 3.4 Redirection. After the GBR service is released, the eNodeB checks whether the QoS satisfaction rates of GBR services are restored. If the QoS satisfaction rates of GBR services are not restored, the eNodeB performs the GBR service release procedure again until the congestion is relieved.
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5 Related Features
5
Related Features
5.1 Features Related to LBFD-002023 Admission Control Prerequisite Features None
Mutually Exclusive Features None
Impacted Features None
5.2 Features Related to LOFD-00102901 Radio/transport Resource Pre-emption Prerequisite Features LOFD-00102901 Radio/transport Resource Pre-emption is dependent on LBFD-002023 Admission Control. Preemption can be triggered only if admission fails.
Mutually Exclusive Features None
Impacted Features LBFD-002028 Emergency Call has an impact on LOFD-00102901 Radio/transport Resource Pre-emption. Emergency calls are assigned the highest priority. If the admission of an emergency call fails, preemption is performed for the emergency call. Issue 03 (2015-11-03)
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5.3 Features Related to LBFD-002024 Congestion Control Prerequisite Features None
Mutually Exclusive Features None
Impacted Features None
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6 Network Impact
6
Network Impact
6.1 LBFD-002023 Admission Control System Capacity The admission control algorithm maximizes system capacity while satisfying the QoS requirements of admitted services. For example, if the QoS satisfaction rate of GBR services is low, new services cannot be admitted and preemption will be triggered. System capacity can be maximized on condition that the QoS requirements are satisfied.
Network Performance If network congestion results in limited system capacity, the implementation of admission control algorithm decreases the access success rate and handover success rate. For admission control based on QoS satisfaction rates, if the admission threshold is set to a smaller value, GBR services are easier to be admitted and the admission success rate of GBR services increases. However, the service quality of admitted GBR services becomes poorer.
6.2 LOFD-00102901 Radio/transport resource pre-emption System Capacity No impact.
Network Performance Preemption increases the access success rate for users with high ARPs. However, users with low ARPs are forcibly released and their service drop rate increases. The way the eNodeB performs user-number-based preemption will increase the amount of radio signaling because of the following three actions: l
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l
The eNodeB releases temporary RRC connections for those UEs that eventually encounter preemption failures.
l
The eNodeB releases RRC connections for preempted UEs.
6.3 LBFD-002024 Congestion Control System Capacity The congestion control algorithm maximizes system capacity while preferentially satisfying the QoS requirements of users with high ARPs. When congestion occurs, the congestion control algorithm informs the admission control algorithm. Then, the admission control algorithm starts to reject access requests.
Network Performance The congestion control algorithm increases the service drop rate because the congestioncontrol-triggered releases of users are regarded as service drops. Counters are provided to indicate congestion-triggered service drops. For details about the counters, see 9 Counters.
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7
7 Engineering Guidelines
Engineering Guidelines
7.1 When to Use Admission and Congestion Control When a network becomes congested with an increasing number of users and higher QoS requirements, eNodeBs need to perform radio resource management so that QoS requirements of ongoing services can be fulfilled and differentiated services can be provided. When radio resource congestion occurs (for example, QoS requirements cannot be fulfilled or radio bearers cannot be set up), activate admission control to relieve congestion and provide service-priority-based access services. When congestion increases so that QoS requirements still cannot be fulfilled, activate congestion control to enable low-priority service release.
7.2 Required Information For both admission control and congestion control, collect the QoS satisfaction rates and uplink PRB usage of cells.
7.3 Planning 7.3.1 RF Planning N/A
7.3.2 Network Planning Network planning is required for redirection. Redirection can transfer loads to inter-frequency or inter-RAT cells if admission fails or a low-priority service needs to be released. During network planning, operators can coordinate resources of the GERAN, UTRAN, and EUTRAN in a hierarchical structure to increase return on investment, better utilize existing resources, and achieve service steering. Issue 03 (2015-11-03)
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7.3.3 Hardware Planning N/A
7.4 Deployment of Admission Control 7.4.1 Requirements Feature For details, see 5.1 Features Related to LBFD-002023 Admission Control in the section "Impacted Features".
Hardware None
License The required licenses for the Enhanced Admission Control feature must be activated before service preemption is enabled. The operator must purchase and activate the licenses of the features listed in the following table. Feature ID
Feature Name
Model
License Control Item
NE
Sales Unit
LOFD-00102 9
Enhanced Admission Control
LT1S000 EAC00
Enhanced Admission Control (FDD)
Macro eNodeB/ LampSite eNodeB/ BTS3202E
per RRC Connected User
Other Requirements As required by congestion control, the preemption capability and vulnerability must be specified in the EPC for services with different priorities.
7.4.2 Data Preparation This section describes the data that you need to collect for setting parameters. Required data is data that you must collect for all scenarios. Collect scenario-specific data when necessary for a specific feature deployment scenario. There are three types of data sources: l
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l
Network plan (negotiation not required): parameter values planned and set by the operator
l
User-defined: parameter values set by users
Required Data N/A
Scenario-specific Data Scenario 1: Admission Based on QoS Satisfaction Rates The following table describes the parameters that must be set in the CellAlgoSwitch MO to enable admission based on QoS satisfaction rates. Parameter Name
Paramet er ID
Data Source
Setting Notes
Local cell ID
CellAlgo Switch.L ocalCellI d
Network plan (negotiation not required)
This parameter specifies the local ID of a cell. It uniquely identifies a cell within an eNodeB. Set this parameter based on the network plan.
RAC algorithm switch
CellAlgo Switch.R acAlgoS witch
Network plan (negotiation not required)
l To enable downlink admission based on QoS satisfaction rates, select the DlSwitch(dlCacSwitch) option.
Network plan (negotiation not required)
l To enable uplink admission based on QoS satisfaction rates, select the UlSwitch(ulCacSwitch) option.
l To disable downlink admission based on QoS satisfaction rates, deselect the DlSwitch(dlCacSwitch) option.
l To disable uplink admission based on QoS satisfaction rates, deselect the UlSwitch(ulCacSwitch) option.
The following table describes the parameters that must be set in the CellRacThd MO to configure admission based on QoS satisfaction rates.
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Parameter Name
Paramet er ID
Data Source
Setting Notes
Local cell ID
CellRac Thd.Loc alCellId
Network plan (negotiation not required)
This parameter specifies the local ID of a cell. It uniquely identifies a cell within an eNodeB. Set this parameter based on the network plan.
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Parameter Name
Paramet er ID
Data Source
Setting Notes
Gold service arp threshold
CellRac Thd.Gol dService ArpThd
Network plan (negotiation not required)
This parameter specifies the ARP threshold for gold-level services. A service is defined as a gold-level service if its ARP value is less than or equal to this parameter value. A smaller ARP value indicates a higher priority. The value 5 is recommended.
Silver service arp threshold
CellRac Thd.Silv erService ArpThd
Network plan (negotiation not required)
This parameter specifies the ARP threshold for silver-level services. A service is defined as a silver-level service if its ARP value is less than or equal to this parameter value and greater than the value of CellRacThd.GoldServiceArpThd. A service is defined as a bronze-level service if its ARP value is greater than the value of CellRacThd.SilverServiceArpThd. A smaller ARP value indicates a higher priority. The value 10 is recommended.
QCI1 handover admission threshold
CellRac Thd.Qci 1HoThd
Network plan (negotiation not required)
This parameter specifies the handover admission threshold for QCI 1. The parameter applies to both uplink and downlink. l If the QoS satisfaction rate of services with a QCI of 1 in the cell is higher than or equal to this threshold, handover services with a QCI of 1 are admitted. l If the QoS satisfaction rate of these services is lower than this threshold, handover services with a QCI of 1 are not admitted. The value 90 is recommended.
QCI2 handover admission threshold
CellRac Thd.Qci 2HoThd
Network plan (negotiation not required)
This parameter specifies the handover admission threshold for QCI 2. The parameter applies to both uplink and downlink. l If the QoS satisfaction rate of services with a QCI of 2 in the cell is higher than or equal to this threshold, handover services with a QCI of 2 are admitted. l If the QoS satisfaction rate of these services is lower than this threshold, handover services with a QCI of 2 are not admitted. The value 90 is recommended.
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Parameter Name
Paramet er ID
Data Source
Setting Notes
QCI3 handover admission threshold
CellRac Thd.Qci 3HoThd
Network plan (negotiation not required)
This parameter specifies the handover admission threshold for QCI 3. The parameter applies to both uplink and downlink. l If the QoS satisfaction rate of services with a QCI of 3 in the cell is higher than or equal to this threshold, handover services with a QCI of 3 are admitted. l If the QoS satisfaction rate of these services is lower than this threshold, handover services with a QCI of 3 are not admitted. The value 90 is recommended.
QCI4 handover admission threshold
CellRac Thd.Qci 4HoThd
Network plan (negotiation not required)
This parameter specifies the handover admission threshold for QCI 4. The parameter applies to both uplink and downlink. l If the QoS satisfaction rate of services with a QCI of 4 in the cell is higher than or equal to this threshold, handover services with a QCI of 4 are admitted. l If the QoS satisfaction rate of these services is lower than this threshold, handover services with a QCI of 4 are not admitted. The value 90 is recommended.
Gold new service admission threshold offset
CellRac Thd.New GoldServ iceOffset
Network plan (negotiation not required)
This parameter specifies admission offset for new gold-level services. The parameter applies to both uplink and downlink. l New gold-level services and handover services with a specific QCI are admitted if the following conditions are both met: The QoS satisfaction rate of services with this QCI is higher than or equal to the sum of this offset and the admission threshold for handover services with this QCI. The QoS satisfaction rates of all other QCIs are higher than the corresponding handover admission thresholds. l New services are not admitted if the QoS satisfaction rate of any QCI is lower than the corresponding handover admission threshold. The value 5 is recommended.
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Parameter Name
Paramet er ID
Data Source
Setting Notes
Silver new service admission threshold offset
CellRac Thd.New SilverSer viceOffse t
Network plan (negotiation not required)
This parameter specifies admission offset for new silver-level services. The parameter applies to both uplink and downlink. l New silver-level services and handover services with a specific QCI are admitted if the following conditions are both met: The QoS satisfaction rate of services with this QCI is higher than or equal to the sum of this offset and the admission threshold for handover services with this QCI. The QoS satisfaction rates of all other QCIs are higher than the corresponding handover admission thresholds. l New services with a specific QCI are not admitted if the QoS satisfaction rate of any QCI is lower than the corresponding handover admission threshold. The value 5 is recommended.
Bronze new service admission threshold offset
CellRac Thd.New CopperS erviceOff set
Network plan (negotiation not required)
This parameter specifies admission offset for new bronze-level services. The parameter applies to both uplink and downlink. l New bronze-level services and handover services with a specific QCI are admitted if the following conditions are both met: The QoS satisfaction rate of services with this QCI is higher than or equal to the sum of this offset and the admission threshold for handover services with this QCI. The QoS satisfaction rates of all other QCIs are higher than the corresponding handover admission thresholds. l New services with a specific QCI are not admitted if the QoS satisfaction rate of any QCI is lower than the corresponding handover admission threshold. The value 5 is recommended.
Uplink RB used ratio high threshold
CellRac Thd.UlR bHighTh d
Network plan (negotiation not required)
This parameter specifies the threshold for deciding whether the uplink RB usage is high. This threshold is used in uplink admission decisions. If the MAC layer reports that the uplink RB usage is greater than this parameter value, the uplink RB usage is regarded to be high. The value 95 is recommended.
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Parameter Name
Paramet er ID
Data Source
Setting Notes
Uplink RB used ratio low threshold
CellRac Thd.UlR bLowThd
Network plan (negotiation not required)
This parameter specifies the threshold for deciding whether the uplink RB usage is low. This threshold is used in uplink admission decisions. If the MAC layer reports that the uplink RB usage is less than this parameter value, the uplink RB usage is regarded to be low. The value 90 is recommended.
Scenario 2: Service Preemption This section describes data preparation for radio resource preemption. For details about data preparation for transport resource preemption, see Transport Resource Management Feature Parameter Description. Before collecting the parameters for enabling and configuring service preemption, collect the parameters in the CellAlgoSwitch MO for enabling admission based on QoS satisfaction rates. For the parameters for enabling admission based on QoS satisfaction rates, see scenario 1. The following table describes the parameters that must be set in the CellAlgoSwitch MO to enable service preemption. Parameter Name
Parame ter ID
Data Source
Setting Notes
Local cell ID
CellAlg oSwitch .LocalC ellId
Network plan (negotiation not required)
This parameter specifies the local ID of a cell. It uniquely identifies a cell within an eNodeB. Set this parameter based on the network plan.
RAC algorithm switch
CellAlg oSwitch .RacAlg oSwitch
Network plan (negotiation not required)
PreemptionSwitch(PreemptionSwitch) of this parameter specifies whether to enable service preemption. l If the PreemptionSwitch(PreemptionSwitch) option is selected, new higher-priority services that have failed to be admitted can preempt the admitted lower-priority services in the cell. l If the PreemptionSwitch(PreemptionSwitch) option is deselected, only emergency calls can be admitted to the cell.
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The following table describes the parameter that must be set in the EnodeBAlgoSwitch MO to enable user-number-based preemption. Parameter Name
Paramet er ID
Data Source
Setting Notes
UE number preemption switch
EnodeB AlgoSwit ch.UeNu mPreemp tSwitch
Network plan (negotiatio n not required)
This parameter specifies whether to enable usernumber-based preemption. l IntraOpUeNumPreemptSwitch: This option specifies whether to enable intra-operator usernumber-based preemption. If the IntraOpUeNumPreemptSwitch option is selected, when a user cannot access the network because of the user number restriction, the user can preempt resources of other lower-priority users served by the same operator. If this option is deselected, preemption is not allowed. l InterOpUeNumPreemptSwitch: This option specifies whether to enable inter-operator usernumber-based preemption. If the InterOpUeNumPreemptSwitch option is selected, when a user cannot access the network because of the user number restriction, the user can preempt resources of other lower-priority users served by different operators. If this option is deselected, preemption is not allowed.
Scenario 4: User-Number-Reservation-based Admission Control of Privileged UEs The following table describes the parameter that must be set in the CellRacThd MO to enable user-number-reservation-based admission control of privileged UEs. Parameter Name
Paramet er ID
Data Source
Setting Notes
Admission Control Reserved User Number
CellRac Thd.AcR eservedU serNumb er
Network plan (negotiatio n not required)
This parameter specifies the UE numbers reserved for privileged UEs. If this parameter is set to 0, no UE numbers are reserved for privileged UEs. A non-zero value of this parameter indicates the maximum UE numbers reserved for privileged UEs. A larger value of this parameter indicates a larger UE number reserved for privileged UEs and a smaller UE number available for common UEs. The value 0 is recommended.
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The following table describes the parameters that must be set in the CSFallBackPolicyCfg MO to configure ARPs for common UEs initiating CSFB procedures. Parameter Name
Parameter ID
Data Source
Setting Notes
Csfb User Arp Configurati on Switch
CSFallBackPolic yCfg.CsfbUserAr pCfgSwitch
Network plan (negotiation not required)
This parameter specifies whether the ARPs for common UEs initiating CSFB procedures can be configured. The value OFF(Off) is recommended.
Normal Csfb User Arp
CSFallBackPolic yCfg.NormalCsfb UserArp
Network plan (negotiation not required)
This parameter specifies the ARP for common UEs initiating CSFB procedures. If this parameter is set to 1, the ARP for these UEs is the same as that for emergency UEs initiating CSFB procedures. The value 2 is recommended.
7.4.3 Activation Using the CME to Perform Batch Configuration for Newly Deployed eNodeBs Enter the values of the parameters listed in Table 7-1, Table 7-2, Table 7-3, Table 7-4, or Table 7-5 in a summary data file, which also contains other data for the new eNodeBs to be deployed. Then, import the summary data file into the Configuration Management Express (CME) for batch configuration. For detailed instructions, see "Creating eNodeBs in Batches" in the initial configuration guide for the eNodeB, which is available in the eNodeB product documentation. The summary data file may be a scenario-specific file provided by the CME or a customized file, depending on the following conditions: l
The managed objects (MOs) in Table 7-1, Table 7-2, Table 7-3, Table 7-4, or Table 7-5 are contained in a scenario-specific summary data file. In this situation, set the parameters in the MOs, and then verify the parameter settings and save the file.
l
Some MOs in Table 7-1, Table 7-2, Table 7-3, Table 7-4, or Table 7-5 are not contained in a scenario-specific summary data file. In this situation, customize a summary data file to include the MOs before setting the parameters.
Table 7-1 Parameters for admission based on QoS satisfaction rates
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MO
Sheet in the Summary Data File
Parameter Group
Remarks
CellAlgoS witch
CellAlgoSwitch
Local cell ID, RAC algorithm switch
User-defined template
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MO
Sheet in the Summary Data File
Parameter Group
Remarks
CellRacTh d
CellRacThd
Local cell ID, Gold service arp threshold, Silver service arp threshold, QCI1 handover admission threshold (%), QCI2 handover admission threshold (%), QCI3 handover admission threshold (%), QCI4 handover admission threshold (%), Gold new service admission threshold offset (%), Silver new service admission threshold offset (%), Copper new service admission threshold offset (%), Uplink RB used ratio high threshold(%), Uplink RB used ratio low threshold (%)
User-defined template
Table 7-2 Parameters for service preemption
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MO
Sheet in the Summary Data File
Parameter Group
Remarks
CellAlgoSwitch
CellAlgoSwitch
Local cell ID, RAC algorithm switch
User-defined template
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MO
Sheet in the Summary Data File
Parameter Group
Remarks
CellRacThd
CellRacThd
Local cell ID, Gold service arp threshold, Silver service arp threshold, QCI1 handover admission threshold (%), QCI2 handover admission threshold (%), QCI3 handover admission threshold(%), QCI4 handover admission threshold(%), Gold new service admission threshold offset(%), Silver new service admission threshold offset(%), Copper new service admission threshold offset(%), Uplink RB used ratio high threshold(%), Uplink RB used ratio low threshold(%)
User-defined template
Table 7-3 Parameters for UE-number-based preemption MO
Sheet in the Summary Data File
Parameter Group
Remarks
EnodeBAlgoSwitc h
ENodeBAlgoSwitch
UE number preemption switch
User-defined template
Table 7-4 Parameters for admission control of privileged UEs based on reserved resources
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MO
Sheet in the Summary Data File
Parameter Group
Remarks
CellRacThd
CellRacThd
Admission Control Reserved User Numbers
User-defined template
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Table 7-5 Parameters for ARP configuration for common UEs initiating CSFB procedures when the number of UEs to be admitted is limited MO
Sheet in the Summary Data File
Parameter Group
Remarks
CsFallbackPolicyC fg
CsFallbackPolicyCf g
Csfb User Arp Configure Switch, Normal Csfb User Arp
User-defined template
Using the CME to Perform Batch Configuration for Existing eNodeBs Batch reconfiguration using the CME is the recommended method to activate a feature on existing eNodeBs. This method reconfigures all data, except neighbor relationships, for multiple eNodeBs in a single procedure. The procedure is as follows: Step 1 Customize a summary data file with the MOs and parameters listed in section "Using the CME to Perform Batch Configuration for Newly Deployed eNodeBs". For online help, press F1 when a CME window is active, and choose Managing the CME > CME Guidelines > LTE Application Management > eNodeB Related Operations > Customizing a Summary Data File for Batch eNodeB Configuration. Step 2 Choose CME > LTE Application > Export Data > Export Base Station Bulk Configuration Data (U2000 client mode), or choose LTE Application > Export Data > Export Base Station Bulk Configuration Data (CME client mode), to export eNodeB data stored on the CME into a customized summary data file. Step 3 In the summary data file, set the parameters in the MOs according to the setting notes provided in section "Data Preparation" and close the file. Step 4 Choose CME > LTE Application > Import Data > Import Base Station Bulk Configuration Data (U2000 client mode), or choose LTE Application > Import Data > Import Base Station Bulk Configuration Data (CME client mode), to import the summary data file into the CME, and then start the data verification. Step 5 Choose CME > Planned Area > Export Incremental Scripts (U2000 client mode), or choose Area Management > Planned Area > Export Incremental Scripts (CME client mode), to export and activate the incremental scripts. For detailed operations, see Managing the CME > CME Guidelines > Script File Management > Exporting Incremental Scripts from a Planned Data Area in the CME online help. ----End
Using the CME to Perform Single Configuration On the CME, set the parameters listed in the "Data Preparation" section for a single eNodeB. The procedure is as follows: Step 1 In the planned data area, click Base Station in the upper left corner of the configuration window. Step 2 In area 1 shown in Figure 7-1, select the eNodeB to which the MOs belong. Issue 03 (2015-11-03)
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Figure 7-1 MO search and configuration window
Step 3 On the Search tab page in area 2, enter an MO name, for example, CELL. Step 4 In area 3, double-click the MO in the Object Name column. All parameters in this MO are displayed in area 4. Step 5 Set the parameters in area 4 or 5. Step 6 In the planned data area, choose CME > Planned Area > Export Incremental Scripts (U2000 client mode), or Area Management > Planned Area > Export Incremental Scripts (CME client mode), to export and activate the incremental scripts. ----End
Using MML Commands Scenario 1: Admission Based on QoS Satisfaction Rates Step 1 Run the MOD CELLALGOSWITCH command to enable uplink and downlink admission control based on QoS satisfaction rates. Step 2 Run the MOD CELLRACTHD command to configure admission control. ----End Scenario 2: Service Preemption Step 1 Run the MOD CELLALGOSWITCH command to enable uplink and downlink admission control based on QoS satisfaction rates, and then to enable service preemption. Step 2 Run the MOD CELLRACTHD command to configure admission control. ----End Scenario 3: User-Number-based Preemption Issue 03 (2015-11-03)
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Run the MOD ENODEBALGOSWITCH command to enable user-number-based preemption. Scenario 4: Admission Control of Privileged UEs Based on Reserved Resources Run the MOD CELLRACTHD command to set the number of UEs reserved for admission control. Scenario 5: ARP Configuration for Common UEs Initiating CSFB Procedures When the Number of UEs to Be Admitted Is Limited Run the MOD CSFALLBACKPOLICYCFG command to turn on the switch for configuring ARP for common UEs initiating CSFB procedures and to configure the ARPs for common UEs initiating CSFB procedures.
MML Command Examples l
Enabling Admission Control Based on QoS Satisfaction Rates MOD CELLALGOSWITCH: LocalCellId=0, RacAlgoSwitch=DlSwitch-1&UlSwitch-1;
l
Enabling Service Preemption MOD CELLALGOSWITCH: LocalCellId=0, RacAlgoSwitch=PreemptionSwitch-1;
l
Configuring Admission Control MOD CELLRACTHD: LocalCellId=0, GoldServiceArpThd=5, SilverServiceArpThd=10, Qci1HoThd=80, Qci2HoThd=80, Qci3HoThd=80, Qci4HoThd=80, NewGoldServiceOffset=5, NewSilverServiceOffset=5, NewCopperServiceOffset=5, UlRbHighThd=90, UlRbLowThd=80;
l
Enabling User-Number-based Preemption MOD ENODEBALGOSWITCH:UeNumPreemptSwitch=IntraOpUeNumPreemptSwitch-1&InterOpUeNumPr eemptSwitch-1;
l
Enabling Admission Control of Privileged UEs Based on Reserved Resources MOD CELLRACTHD:LocalCellId=0,AcReservedUserNumber=15;
l
Enabling ARP Configuration for Common UEs Initiating CSFB Procedures When the Number of UEs to Be Admitted Is Limited MOD CSFALLBACKPOLICYCFG:CSFBUSERARPCFGSWITCH=ON,NORMALCSFBUSERARP=2;
7.4.4 Activation Observation Scenario 1: Admission Based on QoS Satisfaction Rates Step 1 On the U2000 client, start S1 interface tracing and start monitoring on the following items: QoS satisfaction rate, RB usage, and the number of services. 1.
Choose Monitor > Signaling Trace > Signaling Trace Management.
2.
In the navigation tree on the left of the Signaling Trace Management window: –
Choose LTE > Application Layer > S1 Interface Trace to create an S1 interface tracing task.
–
Choose LTE > Cell Performance Monitoring > Satisfaction of Service Monitoring to create a task for monitoring QoS satisfaction rates.
Step 2 Use UEs to access a cell, and perform GBR services with a QCI in the range of 2 to 4 on the UEs. Move some UEs towards the cell center and increase the traffic volume of GBR services on these UEs. Move some UEs towards the cell edge until the cell is congested, which can be monitored based on Congestion State in the monitoring results. Issue 03 (2015-11-03)
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Step 3 Initiate new GBR services with a QCI in the range of 2 to 4. These new GBR service requests are rejected in admission based on QoS satisfaction rates. Step 4 Check the S1AP_ERAB_SETUP_REQ and S1AP_ERAB_SETUP_RSP messages in the S1 interface tracing result. If the cause value for E-RAB setup failures is "radioNetwork: radioresources-not-available" in the S1AP_ERAB_SETUP_RSP messages, as shown in Figure 7-2, or if the number of services does not increase with the S1AP_ERAB_SETUP_REQ messages, the new GBR service requests have been rejected. Figure 7-2 S1AP_ERAB_SETUP_RSP message that indicates failed admission based on satisfaction rates
----End
Scenario 2: Service Preemption In this scenario, two GBR services (A and B) are involved. GBR service A has a QCI of 3 and an ARP value of 7, and GBR service B has a QCI of 4 and an ARP value greater than 7. The GBR service with a larger ARP value has a lower priority. Both GBR services can preempt other services and can be preempted. To check whether a service can preempt other services or can be preempted, observe the S1AP_ERAB_SETUP_REQ message in the S1 interface tracing result. In this message for GBR service A, as shown in Figure 7-3, the value 1 (may-trigger-pre-emption) of the IE pre-emptionCapability indicates that the service can preempt other services and the value 1 (pre-emptable) of the IE pre-emptionVulnerability indicates that the service can be preempted. The value 0 indicates the opposite. Figure 7-3 S1AP_ERAB_SETUP_REQ message that includes the ARP value and the preemption attributes
Step 1 On the U2000 client, start S1 interface tracing and start monitoring on the following items: QoS satisfaction rate, RB usage, and the number of services. 1.
Choose Monitor > Signaling Trace > Signaling Trace Management.
2.
In the navigation tree on the left of the Signaling Trace Management window:
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–
Choose LTE > Application Layer > S1 Interface Trace to create an S1 interface tracing task.
–
Choose LTE > Cell Performance Monitoring > Satisfaction of Service Monitoring to create a task for monitoring QoS satisfaction rates.
Step 2 Use UEs to access a cell, and perform GBR service B (with a QCI of 4) on some UEs. Step 3 Perform GBR service A (with a QCI of 3) on some other UEs. Follow operations in Step 2 for scenario 1 in this section so that requests for GBR service A are first rejected due to admission based on QoS satisfaction rates. Initiate new GBR service A. Preemption principles specify that high-priority services can be admitted based on the preemption of low-priority services, so that GBR service A can preempt GBR service B. Step 4 Monitor S1 signaling to verify that GBR service A preempts GBR service B. GBR service B is released, as shown in Figure 7-4. GBR service A is successfully set up. Figure 7-4 S1AP_ERAB_REL_IND message that indicates successful preemption
----End
Scenario 3: Intra-Operator User-Number-based Preemption If user-number-based preemption is enabled and all users can both be preempted and preempt other users, users with high ARPs can preempt users with low ARPs to access the cell when the number of users has reached the licensed value. The verification procedure is as follows: Step 1 On the U2000 client, choose Monitor > Signaling Trace > Signaling Trace Management. Step 2 In the navigation tree on the left of the Signaling Trace Management window, choose LTE > Application Layer > S1 Interface Trace to create an S1 interface tracing task. Step 3 Apply for a license in which the number of RRC_CONNECTED users is 6, and select the IntraOpUeNumPreemptSwitch(IntraOpUeNumPreemptSwitch) option. Step 4 Use a UE that meets the following requirements to access the network: l
The ARP value for the default bearer is 7.
l
The ARP IE "pre-emption vulnerability" is set to pre-emptable for the default bearer.
Step 5 Use another five UEs that meet the following requirements to access the network: l
The UEs and the previous UE are served by the same operator.
l
The ARP value for the default bearer is 6.
l
The ARP IE "pre-emption vulnerability" is set to pre-emptable for the default bearer.
Step 6 Enable another UE that meets the following requirements to access the network: l
The UE and the previous UEs are served by the same operator.
l
The ARP value for the default bearer is 1.
l
The ARP IE "pre-emption capability" is set to may trigger pre-emption for the default bearer.
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Step 7 Monitor S1 signaling to verify that the resources allocated to the first UE are preempted and the first UE is released, as shown in Figure 7-5. Figure 7-5 S1AP_UE_ CONTEXT_REL_REQ message that indicates successful preemption
----End
7.4.5 Deactivation Using the CME to Perform Batch Configuration Batch reconfiguration using the CME is the recommended method to deactivate a feature on eNodeBs. This method reconfigures all data, except neighbor relationships, for multiple eNodeBs in a single procedure. The procedure for feature deactivation is similar to that for feature activation described in Using the CME to Perform Batch Configuration for Existing eNodeBs. In the procedure, modify parameters according to Table 7-6, Table 7-7, Table 7-8, Table 7-9, and Table 7-10. Table 7-6 Parameters for admission based on QoS satisfaction rates MO
Sheet in the Summary Data File
Parameter Group
Setting Notes
CellAlgoSwitch
CellAlgoSwitch
Local cell ID, RAC algorithm switch
Turn off the switches that control admission control based on satisfaction rates.
Table 7-7 Parameters for service preemption
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MO
Sheet in the Summary Data File
Parameter Group
Setting Notes
CellAlgoSwitch
CellAlgoSwitch
Local cell ID, RAC algorithm switch
Turn off the service preemption switch.
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Table 7-8 Parameters for User-number-based preemption MO
Sheet in the Summary Data File
Parameter Group
Setting Notes
ENodeBAlgoSwit ch
EnodeBAlgoSwitch
UE number preemption switch
Turn off the switch that controls usernumber-based preemption.
Table 7-9 Parameters for user-number-reservation-based admission control of privileged UEs MO
Sheet in the Summary Data File
Parameter Group
Setting Notes
CellRacThd
CellRacThd
Admission Control Reserved User Numbers
Disable user-numberreservation-based admission control of privileged UEs by setting this parameter to 0.
Table 7-10 Parameters for ARP configuration for common UEs initiating CSFB procedures in scenarios where the number of UEs allowed to be admitted is limited MO
Sheet in the Summary Data File
Parameter Group
Setting Notes
CsFallbackPoli cyCfg
CsFallbackPolicyCfg
Csfb User Arp Configure Switch
Disable ARP configuration for common UEs initiating CSFB procedures in scenarios where the number of UEs allowed to be admitted is limited.
Using the CME to Perform Single Configuration On the CME, set parameters according to Table 7-6, Table 7-7, Table 7-8, Table 7-9, and Table 7-10. For detailed instructions, see Using the CME to Perform Single Configuration described for feature activation.
Using MML Commands Scenario 1: Admission Based on QoS Satisfaction Rates Run the MOD CELLALGOSWITCH command to disable uplink and downlink admission control based on QoS satisfaction rates. Scenario 2: Service Preemption Issue 03 (2015-11-03)
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Step 1 Run the MOD CELLALGOSWITCH command to disable uplink and downlink admission control based on QoS satisfaction rates. Step 2 Run the MOD CELLALGOSWITCH command to disable service preemption. ----End Scenario 3: Intra-Operator User-Number-based Preemption Run the MOD ENODEBALGOSWITCH command to disable user-number-based preemption. Scenario 4: User-Number-Reservation-based Admission Control of Privileged UEs Run the MOD CELLRACTHD command to disable user-number-reservation-based admission control of privileged UEs. Scenario 5: ARP Configuration for Common UEs Initiating CSFB Procedures When the Number of UEs to Be Admitted Is Limited Run the MOD CSFALLBACKPOLICYCFG command to disable ARP configuration for common UEs initiating CSFB procedures.
MML Command Examples l
Disabling Admission Control Based on QoS Satisfaction Rates MOD CELLALGOSWITCH: LocalCellId=0, RacAlgoSwitch=DlSwitch-0&UlSwitch-0;
l
Disabling Service Preemption MOD CELLALGOSWITCH: LocalCellId=0, RacAlgoSwitch=PreemptionSwitch-0;
l
Disabling User-Number-based Preemption MOD ENODEBALGOSWITCH: UeNumPreemptSwitch=IntraOpUeNumPreemptSwitch-0&InterOpUeNumPreemptSwitch-0;
l
Disabling User-Number-Reservation-based Admission Control of Privileged UEs MOD CELLRACTHD: LocalCellId=0, AcReservedUserNumber=0;
l
Disabling ARP Configuration for Common UEs Initiating CSFB Procedures in Scenarios Where the Number of Users Allowed to Be Admitted Is Limited MOD CSFALLBACKPOLICYCFG: CsfbUserArpCfgSwitch=0;
7.5 Deployment of Congestion Control 7.5.1 Deployment Requirements Feature For details, see 5.3 Features Related to LBFD-002024 Congestion Control in the section "Impacted Features".
Hardware None
License Congestion control does not have requirements for the operating environment, transmission networking, and licenses. Issue 03 (2015-11-03)
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Other Requirements As required by congestion control for the EPC, only the services whose ARP-related IE preemptionVulnerability is "pre-emptable" can be released if the switch specified by DlLdcSwitch(dlLdcSwitch) or UlLdcSwitch(ulLdcSwitch) is turned on. Therefore, the IE pre-emptionVulnerability must be set to "pre-emptable" in the EPC.
7.5.2 Data Preparation Required Data The following table describes the parameters that must be set in CellAlgoSwitch MOs to enable the congestion control algorithms. Parameter Name
Parameter ID
Data Source
Setting Notes
Local cell ID
CellAlgoSwitch.Loc alCellId
Network plan (negotiation not required)
This parameter specifies the local ID of a cell. It uniquely identifies a cell within an eNodeB. Set this parameter based on the network plan.
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Parameter Name
Parameter ID
Data Source
Setting Notes
RAC algorithm switch
CellAlgoSwitch.Ra cAlgoSwitch
Network plan (negotiation not required)
l To enable downlink congestion detection, select the DlLdcSwitch(dl LdcSwitch) check box. If congestion is detected, congestion relief actions are taken. l To disable downlink congestion detection, clear the DlLdcSwitch(dl LdcSwitch) check box. Then, downlink congestion in the cell, if any, cannot be relieved. l To enable uplink congestion detection, select the UlLdcSwitch(ul LdcSwitch) check box. If congestion is detected, congestion relief actions are taken. l To disable uplink congestion detection, clear the UlLdcSwitch(ul LdcSwitch) check box. Then, uplink congestion in the cell, if any, cannot be relieved.
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Scenario-specific Data The following table describes the parameters that must be set in CellRacThd MOs to configure the congestion control algorithms. Parameter Name
Parameter ID
Data Source
Setting Notes
Local cell ID
CellRacThd.LocalC ellId
Network plan (negotiation not required)
This parameter specifies the local ID of a cell. It uniquely identifies a cell within an eNodeB. Set this parameter based on the network plan.
QCI1 congest threshold
CellRacThd.Qci1C ongThd
Network plan (negotiation not required)
This parameter specifies the congestion threshold for services with a QCI of 1. It applies to both uplink and downlink. l If the QoS satisfaction rate of services with a QCI of 1 in the cell is lower than this threshold, these services enter the congested state. l If the QoS satisfaction rate of these services is higher than the sum of this threshold and CellRacThd.Co ngRelOffset, these services exit the congested state. The value 65 is recommended.
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Parameter Name
Parameter ID
Data Source
Setting Notes
QCI2 congest threshold
CellRacThd.Qci2C ongThd
Network plan (negotiation not required)
This parameter specifies the congestion threshold for services with a QCI of 2. It applies to both uplink and downlink. l If the QoS satisfaction rate of services with a QCI of 2 in the cell is lower than this threshold, these services enter the congested state. l If the QoS satisfaction rate of these services is higher than the sum of this threshold and CellRacThd.Co ngRelOffset, these services exit the congested state. The value 65 is recommended.
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Parameter Name
Parameter ID
Data Source
Setting Notes
QCI3 congest threshold
CellRacThd.Qci3C ongThd
Network plan (negotiation not required)
This parameter specifies the congestion threshold for services with a QCI of 3. It applies to both uplink and downlink. l If the QoS satisfaction rate of services with a QCI of 3 in the cell is lower than this threshold, these services enter the congested state. l If the QoS satisfaction rate of these services is higher than the sum of this threshold and CellRacThd.Co ngRelOffset, these services exit the congested state. The value 65 is recommended.
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Parameter Name
Parameter ID
Data Source
Setting Notes
QCI4 congest threshold
CellRacThd.Qci4C ongThd
Network plan (negotiation not required)
This parameter specifies the congestion threshold for services with a QCI of 4. It applies to both uplink and downlink. l If the QoS satisfaction rate of services with a QCI of 4 in the cell is lower than this threshold, these services enter the congested state. l If the QoS satisfaction rate of these services is higher than the sum of this threshold and CellRacThd.Co ngRelOffset, these services exit the congested state. The value 65 is recommended.
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Parameter Name
Parameter ID
Data Source
Setting Notes
Offset for service congest relieving
CellRacThd.CongR elOffset
Network plan (negotiation not required)
This parameter specifies the congestion relief offset. l If the QoS satisfaction rate of services with a specific QCI in the cell is higher than the sum of this offset and the congestion threshold for that QCI, these services exit the congested state. l If the QoS satisfaction rate of these services is lower than the sum of this offset and the congestion threshold for that QCI, these services remain in the congested state. The value 20 is recommended.
Uplink RB used ratio high threshold
CellRacThd.UlRbH ighThd
Network plan (negotiation not required)
This parameter specifies the threshold for deciding whether the uplink RB usage is high. If the MAC layer reports that the uplink RB usage is greater than this parameter value, the uplink RB usage is regarded to be high. This threshold is used in uplink admission decisions. The value 95 is recommended.
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Parameter Name
Parameter ID
Data Source
Setting Notes
Uplink RB used ratio low threshold
CellRacThd.UlRbL owThd
Network plan (negotiation not required)
This parameter specifies the threshold for deciding whether the uplink RB usage is low. If the MAC layer reports that the uplink RB usage is less than this parameter value, the uplink RB usage is regarded to be low. This threshold is used in uplink admission decisions. The value 90 is recommended.
7.5.3 Activation Using the CME to Perform Batch Configuration for Newly Deployed eNodeBs Enter the values of the parameters listed in Table 7-11 in a summary data file, which also contains other data for the new eNodeBs to be deployed. Then, import the summary data file into the Configuration Management Express (CME) for batch configuration. For detailed instructions, see "Creating eNodeBs in Batches" in the initial configuration guide for the eNodeB, which is available in the eNodeB product documentation. The summary data file may be a scenario-specific file provided by the CME or a customized file, depending on the following conditions: The summary data file may be a scenario-specific file provided by the CME or a customized file, depending on the following conditions: l
The MOs in Table 7-11 are contained in a scenario-specific summary data file. In this situation, set the parameters in the MOs, and then verify and save the file.
l
Some MOs in Table 7-11 are not contained in a scenario-specific summary data file. In this situation, customize a summary data file to include the MOs before you can set the parameters.
Table 7-11 Parameters for congestion control
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MO
Sheet in the Summary Data File
Parameter Group
Remarks
CellAlgoSwitc h
CellAlgoSwitch
Local cell ID, RAC algorithm switch
User-defined template
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MO
Sheet in the Summary Data File
Parameter Group
Remarks
CellRacThd
CellRacThd
Local cell ID, QCI1 congest threshold(%), QCI2 congest threshold(%), QCI3 congest threshold(%), QCI4 congest threshold(%), Offset for service congest relieving(%), Uplink RB used ratio high threshold(%), Uplink RB used ratio low threshold(%)
User-defined template
Using the CME to Perform Batch Configuration for Existing eNodeBs Batch reconfiguration using the CME is the recommended method to activate a feature on existing eNodeBs. This method reconfigures all data, except neighbor relationships, for multiple eNodeBs in a single procedure. Step 1 Customize a summary data file with the MOs and parameters listed in section "Using the CME to Perform Batch Configuration for Newly Deployed eNodeBs". For online help, press F1 when a CME window is active, and select Managing the CME > CME Guidelines > LTE Application Management > eNodeB Related Operations > Customizing a Summary Data File for Batch eNodeB Configuration. Step 2 Choose CME > LTE Application > Export Data > Export Base Station Bulk Configuration Data (U2000 client mode), or choose LTE Application > Export Data > Export Base Station Bulk Configuration Data (CME client mode), to export the eNodeB data stored on the CME into the customized summary data file. Step 3 In the summary data file, set the parameters in the MOs according to the setting notes provided in section "Data Preparation" and close the file. Step 4 Choose CME > LTE Application > Import Data > Import Base Station Bulk Configuration Data (U2000 client mode), or choose LTE Application > Import Data > Import Base Station Bulk Configuration Data (CME client mode), to import the summary data file into the CME, and then start the data verification. Step 5 Choose CME > Planned Area > Export Incremental Scripts (U2000 client mode), or choose Area Management > Planned Area > Export Incremental Scripts (CME client mode), to export and activate the incremental scripts. For detailed operations, see Managing the CME > CME Guidelines > Script File Management > Exporting Incremental Scripts from a Planned Data Area in the CME online help. ----End
Using the CME to Perform Single Configuration On the CME, set the parameters listed in the "Data Preparation" section for a single eNodeB. The procedure is as follows: Step 1 In the planned data area, click Base Station in the upper left corner of the configuration window. Issue 03 (2015-11-03)
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Step 2 In area 1 shown in Figure 7-6, select the eNodeB to which the MOs belong. Figure 7-6 MO search and configuration window
Step 3 On the Search tab page in area 2, enter an MO name, for example, CELL. Step 4 In area 3, double-click the MO in the Object Name column. All parameters in this MO are displayed in area 4. Step 5 Set the parameters in area 4 or 5. Step 6 Choose CME > Planned Area > Export Incremental Scripts (U2000 client mode), or choose Area Management > Planned Area > Export Incremental Scripts (CME client mode), to export and activate the incremental scripts. ----End
Using MML Commands Step 1 Run the MOD CELLALGOSWITCH command to enable uplink and downlink congestion control. Step 2 Run the MOD CELLRACTHD command to configure congestion control. ----End
MML Command Examples MOD CELLALGOSWITCH: LocalCellId=0, RacAlgoSwitch=DlLdcSwitch-1&UlLdcSwitch-1; MOD CELLRACTHD: LocalCellId=0, Qci1CongThd=65, Qci2CongThd=65, Qci3CongThd=65, Qci4CongThd=65, UlRbHighThd=95, UlRbLowThd=90;
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7.5.4 Activation Observation Step 1 On the U2000 client, start S1 interface tracing and start monitoring on the following items: QoS satisfaction rate, RB usage, and the number of services. 1.
Choose Monitor > Signaling Trace > Signaling Trace Management.
2.
In the navigation tree on the left of the Signaling Trace Management window: –
Choose LTE > Application Layer > S1 Interface Trace to create an S1 interface tracing task.
–
Choose LTE > Cell Performance Monitoring > Satisfaction of Service Monitoring to create a task for monitoring QoS satisfaction rates.
Step 2 Use UEs to access a cell, and perform GBR services with a QCI in the range of 2 to 4 on the UEs. Move some UEs towards the cell center and increase the traffic volume of GBR services on these UEs. Move some UEs towards the cell edge until the cell is congested, which can be monitored based on Congestion State in the monitoring results. Step 3 Check the S1 interface tracing result for the S1AP_ERAB_REL_IND message. If the release cause value is "radioNetwork: reduce-load-in-serving-cell" in the S1AP_ERAB_REL_IND message, as shown in Figure 7-7, the indicated low-priority service has been released as expected. Figure 7-7 S1AP_ERAB_REL_IND message that indicates the release of a low-priority service
----End
7.5.5 Deactivation Using the CME to Perform Batch Configuration Batch reconfiguration using the CME is the recommended method to deactivate a feature on eNodeBs. This method reconfigures all data, except neighbor relationships, for multiple eNodeBs in a single procedure. The procedure for feature deactivation is similar to that for feature activation described in Using the CME to Perform Batch Configuration for Existing eNodeBs. In the procedure, modify parameters according to Table 7-12.
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Table 7-12 Parameters for congestion control MO
Sheet in the Summary Data File
Parameter Group
Setting Notes
CellAlgoSwitch
CellAlgoSwitch
Local cell ID, RAC algorithm switch
Turn off the switches that control uplink and downlink congestion control.
Using the CME to Perform Single Configuration On the CME, set parameters according to Table 7-12. For detailed instructions, see Using the CME to Perform Single Configuration described for feature activation.
Using MML Commands Run the MOD CELLALGOSWITCH command to disable uplink and downlink congestion control.
MML Command Examples MOD CELLALGOSWITCH: LocalCellId=0, RacAlgoSwitch=DlLdcSwitch-0&UlLdcSwitch-0;
7.6 Performance Monitoring Admission and congestion control involves RRC connection management and bearer management.
Admission Control If the licensed UE numbers, UE number specifications, or PUCCH resources are limited, the eNodeB does not allow new UEs to access the cell or UEs to be handed over to the cell, and the RRC connections for these UEs fail to be established. The RRC connection congestion rate increases. If resources in the cell are insufficient, the eNodeB may reject the access requests of new bearers and incoming handover bearers, and E-RABs fail to be set up. The E-RAB congestion rate increases. The initial E-RAB congestion rate monitors new bearers that fail to be admitted. Table 7-13 lists the methods for calculating the three measurement indicators. Table 7-13 Congestion rate calculation
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Measurement Indicator
Formula
RRC congestion rate
1 - (L.RRC.ConnReq.Succ L.Cell.UserSpec.PrepEmp.PrepAtt.Num L.Cell.UserLic.Limit.Num)/L.RRC.ConnReq.Msg
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Measurement Indicator
Formula
E-RAB congestion rate
1 - L.E-RAB.SuccEst/L.E-RAB.AttEst
Initial E-RAB congestion rate
1 - L.E-RAB.InitSuccEst/L.E-RAB.InitAttEst
NOTE
Counters in RRC.SetupFail.Cell monitor reasons of RRC connection setup failures. Counters in E-RAB.EstFail.Cell monitor reasons of E-RAB setup failures. The L.Cell.UserLic.Limit.Num.PLMN counter monitors the number of times that the licensed number of UEs is limited for a specific operator.
Preemption After preemption is activated, UEs establish RRC connections first, and then trigger preemption. If a UE fails the preemption, the RRC connection for this UE is released. If the preemption is successful, the RRC connection for the UE whose resources are preempted is released. The L.Cell.UserSpec.PrepEmp.PrepAtt.Num counter measures the number of released RRC connections. The following counters measure the number of RRC connections of UEs that successfully preempt resources of other UEs: l
L.Cell.UserLimit.PreEmp.Num
l
L.Cell.UserLic.PrepEmp.Succ.Num
l
L.Cell.UserLic.PrepEmp.Succ.Num.PLMN
The L.E-RAB.AbnormRel.Cong counter measures the number of bearers abnormally released in the case of congestion, including bearers released due to preemption and bearers released due to congestion control.
Congestion Control During congestion control, the L.LC.ULCong.Dur.Cell and L.LC.DLCong.Dur.Cell counters measure the uplink congestion time and downlink congestion time, respectively. The L.LC.ULCong.Num.Cell and L.LC.DLCong.Num.Cell counters measure the number of times uplink congestion and downlink congestion occur in a cell, respectively. The L.LC.User.Rel counter measures the number of bearers released due to congestion control. If redirection is performed, the L.RRCRedirection.IntraLTE counter measures the number of redirections.
7.7 Parameter Optimization The L.Traffic.Privilege.User.max and L.Traffic.Privilege.User.avg counters measure the maximum number and the average number of privileged UEs in a cell, respectively. In scenarios where user-number-reservation-based admission control of privileged UEs is enabled, if the CellRacThd.AcReservedUserNumber parameter is set to an extremely large Issue 03 (2015-11-03)
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value, the number of common UEs that can access the cell is small; if the CellRacThd.AcReservedUserNumber parameter value is set to an extremely small value, the user number resources reserved for privileged UEs may be insufficient. Therefore, the CellRacThd.AcReservedUserNumber parameter settings must be adjusted based on the values of the L.Traffic.Privilege.User.max and L.Traffic.Privilege.User.avg counters.
7.8 Troubleshooting 7.8.1 Admission Control Fault Description High-priority services fail to preempt low-priority services.
Fault Handling Step 1 Check whether the IE priorityLevel in the S1AP_ERAB_SETUP_REQ message, as shown in Figure 7-8, of the service to be preempted is greater than that of the preempting service. l
If yes, go to Step 2.
l
If no, change the values accordingly at the EPC. Figure 7-8 Checking the ARP value
Step 2 Check the same message to observe whether: (1) The value of the IE pre-emptionCapability is 1 for the preempting service; (2) The value of the IE pre-emptionVulnerability is 1 for the service to be preempted. l
If either of the two values is 0, change the service attributes accordingly at the EPC.
l
If both values are 1, contact Huawei technical support for further troubleshooting.
----End
7.8.2 Congestion Control None
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8 Parameters
8
Parameters
Table 8-1 Parameters MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
ENodeB AlgoSwi tch
UeNum Preempt Switch
MOD ENODE BALGO SWITC H
LOFD-0 0102901 / TDLOF D-00102 901
Radio/ transport resource preemption
Meaning: Indicates the switch used to enable or disable the preemption based on the number of users. IntraOpUeNumPreemptSwitch: This parameter indicates the switch used to enable or disable the intraoperator preemption based on the number of users. If this switch is on, when a user cannot access the network because of the user number restriction, the user can preempt resources of other lower-priority users served by the same operator. If this switch is off, preemption is not allowed. InterOpUeNumPreemptSwitch: This parameter indicates the switch used to enable or disable the inter-operator preemption based on the number of users. If this switch is on, the interoperator preemption based on the number of users is allowed. If this switch is off, the inter-operator preemption based on the number of users is not allowed.
LST ENODE BALGO SWITC H
GUI Value Range: IntraOpUeNumPreemptSwitch(IntraOpUeNumPreemptSwitch), InterOpUeNumPreemptSwitch(InterOpUeNumPreemptSwitch) Unit: None Actual Value Range: IntraOpUeNumPreemptSwitch, InterOpUeNumPreemptSwitch Default Value: IntraOpUeNumPreemptSwitch:Off, InterOpUeNumPreemptSwitch:Off
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eRAN Admission and Congestion Control Feature Parameter Description
8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
CellRac Thd
AcReser vedUser Number
MOD CELLR ACTHD
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning: Indicates the UE numbers reserved for UEs initiating emergency calls and high-priority UEs. If this parameter is set to 0, no UE number is reserved for UEs initiating emergency calls and high-priority UEs. A non-zero value of this parameter represents the maximum UE number reserved for UEs initiating emergency calls and high-priority UEs.
LST CELLR ACTHD
GUI Value Range: 0~30 Unit: None Actual Value Range: 0~30 Default Value: 0 CellRac Thd
NewGol dService Offset
MOD CELLR ACTHD LST CELLR ACTHD
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning: Indicates the offset for admission of new gold-level services. This parameter applies to both downlink and uplink. New gold-level services and handed-over services with QCI N are admitted if both the following conditions are met: (1) The satisfaction rate of services with QCI N is higher than or equal to the sum of this offset and the admission threshold for the handed-over services with QCI N. (2) The satisfaction rate of services with any other QCI is higher than or equal to the corresponding admission threshold for the handed-over services with that QCI. GUI Value Range: 0~90 Unit: % Actual Value Range: 0~90 Default Value: 5
CellRac Thd
NewSilv erServic eOffset
MOD CELLR ACTHD LST CELLR ACTHD
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning: Indicates the offset for admission of new silver-level services. This parameter applies to both downlink and uplink. New silver-level services and handed-over services with QCI N are admitted if both the following conditions are met: (1) The satisfaction rate of services with QCI N is higher than or equal to the sum of this offset and the admission threshold for the handed-over services with QCI N. (2) The satisfaction rate of services with any other QCI is higher than or equal to the corresponding admission threshold for the handed-over services with that QCI. GUI Value Range: 0~90 Unit: % Actual Value Range: 0~90 Default Value: 5
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8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
CellRac Thd
NewCop perServi ceOffset
MOD CELLR ACTHD
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning: Indicates the offset for admission of new bronze-level services. This parameter applies to both downlink and uplink. New bronze-level services and handed-over services with QCI N are admitted if both the following conditions are met: (1) The satisfaction rate of services with QCI N is higher than or equal to the sum of this offset and the admission threshold for the handed-over services with QCI N. (2) The satisfaction rate of services with any other QCI is higher than or equal to the corresponding admission threshold for the handed-over services with that QCI.
LST CELLR ACTHD
GUI Value Range: 0~90 Unit: % Actual Value Range: 0~90 Default Value: 5 CellRac Thd
GoldSer viceArp Thd
MOD CELLR ACTHD LST CELLR ACTHD
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning: Indicates the Allocation and Retention Priority (ARP) threshold for the Golden-level services. A service is defined as a Golden-level service if its ARP value is smaller than or equal to this threshold. The service priority has a negative correlation with the ARP value. GUI Value Range: 1~15 Unit: None Actual Value Range: 1~15 Default Value: 5
CellRac Thd
SilverSe rviceArp Thd
MOD CELLR ACTHD LST CELLR ACTHD
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning: Indicates the Allocation and Retention Priority (ARP) threshold for the Silver-level services. A service is defined as a Silver-level service if its ARP value is smaller than or equal to the value of this parameter and is larger than the value of GoldServiceArpThd. A service is defined as a Bronzelevel service if its ARP value is larger than the value of this parameter. The service priority has a negative correlation with the ARP value. GUI Value Range: 1~15 Unit: None Actual Value Range: 1~15 Default Value: 10
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8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
eNBCell RsvdPar a
RsvdSw Para3
MOD ENBCE LLRSV DPARA
None
None
Meaning:
LST ENBCE LLRSV DPARA
Indicates reserved 32-bit switch parameter 3 that is reserved for future requirements. Note on parameter replacement: Reserved parameters are temporarily used in patch versions and will be replaced with new parameters. For example, the ID of a new parameter can signify the parameter function. Therefore, avoid using this parameter. GUI Value Range: RsvdSwPara3_bit1(ReservedSwitchParameter3_bit1), RsvdSwPara3_bit2(ReservedSwitchParameter3_bit2), RsvdSwPara3_bit3(ReservedSwitchParameter3_bit3), RsvdSwPara3_bit4(ReservedSwitchParameter3_bit4), RsvdSwPara3_bit5(ReservedSwitchParameter3_bit5), RsvdSwPara3_bit6(ReservedSwitchParameter3_bit6), RsvdSwPara3_bit7(ReservedSwitchParameter3_bit7), RsvdSwPara3_bit8(ReservedSwitchParameter3_bit8), RsvdSwPara3_bit9(ReservedSwitchParameter3_bit9), RsvdSwPara3_bit10(ReservedSwitchParameter3_bit10), RsvdSwPara3_bit11(ReservedSwitchParameter3_bit11), RsvdSwPara3_bit12(ReservedSwitchParameter3_bit12), RsvdSwPara3_bit13(ReservedSwitchParameter3_bit13), RsvdSwPara3_bit14(ReservedSwitchParameter3_bit14), RsvdSwPara3_bit15(ReservedSwitchParameter3_bit15), RsvdSwPara3_bit16(ReservedSwitchParameter3_bit16), RsvdSwPara3_bit17(ReservedSwitchParameter3_bit17), RsvdSwPara3_bit18(ReservedSwitchParameter3_bit18), RsvdSwPara3_bit19(ReservedSwitchParameter3_bit19), RsvdSwPara3_bit20(ReservedSwitchParameter3_bit20), RsvdSwPara3_bit21(ReservedSwitchParameter3_bit21), RsvdSwPara3_bit22(ReservedSwitchParameter3_bit22), RsvdSwPara3_bit23(ReservedSwitchParameter3_bit23), RsvdSwPara3_bit24(ReservedSwitchParame-
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MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
8 Parameters
Description
ter3_bit24), RsvdSwPara3_bit25(ReservedSwitchParameter3_bit25), RsvdSwPara3_bit26(ReservedSwitchParameter3_bit26), RsvdSwPara3_bit27(ReservedSwitchParameter3_bit27), RsvdSwPara3_bit28(ReservedSwitchParameter3_bit28), RsvdSwPara3_bit29(ReservedSwitchParameter3_bit29), RsvdSwPara3_bit30(ReservedSwitchParameter3_bit30), RsvdSwPara3_bit31(ReservedSwitchParameter3_bit31), RsvdSwPara3_bit32(ReservedSwitchParameter3_bit32) Unit: None Actual Value Range: RsvdSwPara3_bit1, RsvdSwPara3_bit2, RsvdSwPara3_bit3, RsvdSwPara3_bit4, RsvdSwPara3_bit5, RsvdSwPara3_bit6, RsvdSwPara3_bit7, RsvdSwPara3_bit8, RsvdSwPara3_bit9, RsvdSwPara3_bit10, RsvdSwPara3_bit11, RsvdSwPara3_bit12, RsvdSwPara3_bit13, RsvdSwPara3_bit14, RsvdSwPara3_bit15, RsvdSwPara3_bit16, RsvdSwPara3_bit17, RsvdSwPara3_bit18, RsvdSwPara3_bit19, RsvdSwPara3_bit20, RsvdSwPara3_bit21, RsvdSwPara3_bit22, RsvdSwPara3_bit23, RsvdSwPara3_bit24, RsvdSwPara3_bit25, RsvdSwPara3_bit26, RsvdSwPara3_bit27, RsvdSwPara3_bit28, RsvdSwPara3_bit29, RsvdSwPara3_bit30, RsvdSwPara3_bit31, RsvdSwPara3_bit32 Default Value: RsvdSwPara3_bit1:Off, RsvdSwPara3_bit2:Off, RsvdSwPara3_bit3:Off, RsvdSwPara3_bit4:Off, RsvdSwPara3_bit5:Off, RsvdSwPara3_bit6:Off, RsvdSwPara3_bit7:Off, RsvdSwPara3_bit8:Off, RsvdSwPara3_bit9:Off, RsvdSwPara3_bit10:Off, RsvdSwPara3_bit11:Off, RsvdSwPara3_bit12:Off, RsvdSwPara3_bit13:Off, RsvdSwPara3_bit14:Off, RsvdSwPara3_bit15:Off, RsvdSwPara3_bit16:Off, RsvdSwPara3_bit17:Off, RsvdSwPara3_bit18:Off, RsvdSwPara3_bit19:Off, RsvdSwPara3_bit20:Off, RsvdSwPara3_bit21:Off, RsvdSwPara3_bit22:Off, RsvdSwPara3_bit23:Off, RsvdSwPara3_bit24:Off, RsvdSwPara3_bit25:Off, Issue 03 (2015-11-03)
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MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
8 Parameters
Description
RsvdSwPara3_bit26:Off, RsvdSwPara3_bit27:Off, RsvdSwPara3_bit28:Off, RsvdSwPara3_bit29:Off, RsvdSwPara3_bit30:Off, RsvdSwPara3_bit31:Off, RsvdSwPara3_bit32:Off eNBCell RsvdPar a
RsvdU8 Para10
MOD ENBCE LLRSV DPARA
None
None
LST ENBCE LLRSV DPARA
Meaning: Indicates reserved U8 parameter 10 that is reserved for future requirements. Note on parameter replacement: Reserved parameters are temporarily used in patch versions and will be replaced with new parameters. For example, the ID of a new parameter can signify the parameter function. Therefore, avoid using this parameter. GUI Value Range: 0~255 Unit: None Actual Value Range: 0~255 Default Value: 0
eNBCell RsvdPar a
RsvdU8 Para11
MOD ENBCE LLRSV DPARA
None
None
LST ENBCE LLRSV DPARA
Meaning: Indicates reserved U8 parameter 11 that is reserved for future requirements. Note on parameter replacement: Reserved parameters are temporarily used in patch versions and will be replaced with new parameters. For example, the ID of a new parameter can signify the parameter function. Therefore, avoid using this parameter. GUI Value Range: 0~255 Unit: None Actual Value Range: 0~255 Default Value: 0
eNBCell RsvdPar a
RsvdU8 Para12
MOD ENBCE LLRSV DPARA LST ENBCE LLRSV DPARA
None
None
Meaning: Indicates reserved U8 parameter 12 that is reserved for future requirements. Note on parameter replacement: Reserved parameters are temporarily used in patch versions and will be replaced with new parameters. For example, the ID of a new parameter can signify the parameter function. Therefore, avoid using this parameter. GUI Value Range: 0~255 Unit: None Actual Value Range: 0~255 Default Value: 0
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8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
eNBCell RsvdPar a
RsvdU8 Para1
MOD ENBCE LLRSV DPARA
None
None
Meaning: Indicates reserved U8 parameter 1 that is reserved for future requirements. Note on parameter replacement: Reserved parameters are temporarily used in patch versions and will be replaced with new parameters. For example, the ID of a new parameter can signify the parameter function. Therefore, avoid using this parameter.
LST ENBCE LLRSV DPARA
GUI Value Range: 0~255 Unit: None Actual Value Range: 0~255 Default Value: 0
eNBCell RsvdPar a
RsvdU8 Para2
MOD ENBCE LLRSV DPARA
None
None
LST ENBCE LLRSV DPARA
Meaning: Indicates reserved U8 parameter 2 that is reserved for future requirements. Note on parameter replacement: Reserved parameters are temporarily used in patch versions and will be replaced with new parameters. For example, the ID of a new parameter can signify the parameter function. Therefore, avoid using this parameter. GUI Value Range: 0~255 Unit: None Actual Value Range: 0~255 Default Value: 0
eNBCell RsvdPar a
RsvdU8 Para3
MOD ENBCE LLRSV DPARA LST ENBCE LLRSV DPARA
None
None
Meaning: Indicates reserved U8 parameter 3 that is reserved for future requirements. Note on parameter replacement: Reserved parameters are temporarily used in patch versions and will be replaced with new parameters. For example, the ID of a new parameter can signify the parameter function. Therefore, avoid using this parameter. GUI Value Range: 0~255 Unit: None Actual Value Range: 0~255 Default Value: 0
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8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
eNBCell RsvdPar a
RsvdU8 Para4
MOD ENBCE LLRSV DPARA
None
None
Meaning: Indicates reserved U8 parameter 4 that is reserved for future requirements. Note on parameter replacement: Reserved parameters are temporarily used in patch versions and will be replaced with new parameters. For example, the ID of a new parameter can signify the parameter function. Therefore, avoid using this parameter.
LST ENBCE LLRSV DPARA
GUI Value Range: 0~255 Unit: None Actual Value Range: 0~255 Default Value: 0
CSFallB ackPolic yCfg
CsfbUse rArpCfg Switch
MOD CSFAL LBACK POLIC YCFG
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
GUI Value Range: OFF(Off), ON(On)
LST CSFAL LBACK POLIC YCFG CSFallB ackPolic yCfg
Normal CsfbUse rArp
MOD CSFAL LBACK POLIC YCFG LST CSFAL LBACK POLIC YCFG
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Meaning: Indicates whether allocation/retention priorities (ARPs) can be configured for CSFB services triggered by common calls. For details about ARPs, see 3GPP TS 23.401. Unit: None Actual Value Range: OFF, ON Default Value: OFF(Off)
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning: Indicates the allocation/retention priority (ARP) of a CSFB service triggered by a common call. When this parameter is set to 1, the service priority is the same as that of an emergency call. For details about the ARP, see 3GPP TS 23.401. GUI Value Range: 1~15 Unit: None Actual Value Range: 1~15 Default Value: 2
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8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
CellAlg oSwitch
RacAlgo Switch
MOD CELLA LGOSW ITCH
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning:
LST CELLA LGOSW ITCH
LBFD-0 02024 / TDLBF D-00202 4 LOFD-0 0102901
Congesti on Control Radio/ transport resource preemption
Indicates whether to enable the admission and load control algorithms. DlSwitch: Indicates whether to enable the algorithm of downlink admission control based on the satisfaction rate. If this switch is on, the algorithm is enabled. If this switch is off, the algorithm is disabled. During the calculation of the QoS satisfaction rate of services with different QCIs, the satisfaction estimation method used dedicatedly for VoIP services is implemented on services with the QCI of 1. If a service with the QCI of 1 is not a VoIP service, the satisfaction rate calculated using this method is lower than the actual value, which affects the admission of GBR services. Therefore, if not all the services with the QCI of 1 are VoIP services, it is recommended that this switch be off. UlSwitch: Indicates whether to enable the algorithm of uplink admission control based on the satisfaction rate. If this switch is on, the algorithm is enabled. If this switch is off, the algorithm is disabled. During the calculation of the QoS satisfaction rate of services with different QCIs, the satisfaction estimation method used dedicated for VoIP services is implemented on services with the QCI of 1. If a service with the QCI of 1 is not a VoIP service, the satisfaction rate calculated using this method is lower than the actual value, which affects the admission of GBR services. Therefore, if not all the services with the QCI of 1 are VoIP services, it is recommended that this switch be off. DlPredictSwitch: Indicates whether to enable the algorithm of downlink admission control based on prediction. If this switch is on, the algorithm is enabled. If this switch is off, the algorithm is disabled. UlPredictSwitch: Indicates whether to enable the algorithm of uplink admission control based on prediction. If this switch is on, the algorithm is enabled. If this switch is off, the algorithm is disabled. GbrUsageSwitch: Indicates whether to enable the check on the number of PRBs used by GBR services. If this switch is on, the number of PRBs used by existing GBR services is checked before a new GBR service can be admitted. If this switch is off, the number of PRBs used by existing GBR services is not
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eRAN Admission and Congestion Control Feature Parameter Description
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
8 Parameters
Description
checked during admission evaluation of new GBR services DlLdcSwitch: Indicates whether to implement load control in the downlink of a cell. If this switch is on, the system checks for congestion in the downlink of the cell. If the downlink is congested, load control is performed. If this switch is off, the system does not check for congestion in the downlink of the cell and the congestion cannot be relieved. During the calculation of the QoS satisfaction rate of services with different QCIs, the satisfaction estimation method used dedicated for VoIP services is implemented on services with the QCI of 1. If a service with the QCI of 1 is not a VoIP service, the satisfaction rate calculated using this method is lower than the actual value, which affects the cell load control. Therefore, if not all the services with the QCI of 1 are VoIP services, it is recommended that this switch be off. UlLdcSwitch: Indicates whether to implement load control in the uplink of a cell. If this switch is on, the system checks for congestion in the uplink of the cell. If the uplink is congested, load control is performed. If this switch is off, the system does not check for congestion in the uplink of the cell and the congestion cannot be relieved. During the calculation of the QoS satisfaction rate of services with different QCIs, the satisfaction estimation method used dedicated for VoIP services is implemented on services with the QCI of 1. If a service with the QCI of 1 is not a VoIP service, the satisfaction rate calculated using this method is lower than the actual value, which affects the cell load control. Therefore, if not all the services with the QCI of 1 are VoIP services, it is recommended that this switch be off. RelDrbSwitch: Indicates whether low-priority services can be released in the case of congestion. If this switch is on, low-priority services can be released. If this switch is off, low-priority services cannot be released. PreemptionSwitch: Indicates whether to enable the preemption control algorithm. If this switch is on, preemption can be used when the admission of highpriority services fails. If this switch is off, only emergency calls can be admitted to the system when resources are insufficient.
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eRAN Admission and Congestion Control Feature Parameter Description
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
8 Parameters
Description
GUI Value Range: DlSwitch(dlCacSwitch), UlSwitch(ulCacSwitch), DlPredictSwitch(dlCacPredictSwitch), UlPredictSwitch(ulCacPredictSwitch), GbrUsageSwitch(GbrUsedPRbCheckSwitch), DlLdcSwitch(dlLdcSwitch), UlLdcSwitch(ulLdcSwitch), RelDrbSwitch(LdcDrbRelSwitch), PreemptionSwitch(PreemptionSwitch) Unit: None Actual Value Range: DlSwitch, UlSwitch, DlPredictSwitch, UlPredictSwitch, GbrUsageSwitch, DlLdcSwitch, UlLdcSwitch, RelDrbSwitch, PreemptionSwitch Default Value: DlSwitch:Off, UlSwitch:Off, DlPredictSwitch:Off, UlPredictSwitch:Off, GbrUsageSwitch:Off, DlLdcSwitch:Off, UlLdcSwitch:Off, RelDrbSwitch:Off, PreemptionSwitch:Off
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eRAN Admission and Congestion Control Feature Parameter Description
8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
ENodeB AlgoSwi tch
Redirect Switch
MOD ENODE BALGO SWITC H
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning:
LST ENODE BALGO SWITC H
LBFD-0 02024 / TDLBF D-00202 4 LOFD-0 0102901 / TDLOF D-00102 901 LOFD-0 01019 / TDLOF D-00101 9 LOFD-0 01020 / TDLOF D-00102 0 LOFD-0 01021 / TDLOF D-00102 1
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Congesti on Control Radio/ transport resource preemption
Indicates the switch used to enable or disable the redirection algorithm. This switch does not control redirection or fast redirection for CSFB. GeranFlashRedirectSwitch: If this switch and GeranRedirectSwitch are on, fast redirection to GERAN can be performed. UtranFlashRedirectSwitch: If this switch and UtranRedirectSwitch are on, fast redirection to UTRAN can be performed.
PS InterRAT Mobility between EUTRAN and UTRAN
LoadBasedSwitch: If this switch is on, load based redirection can be performed.
PS InterRAT Mobility between EUTRAN and GERAN
Default Value: LoadBasedSwitch:Off, GeranFlashRedirectSwitch:Off, UtranFlashRedirectSwitch:Off
GUI Value Range: LoadBasedSwitch, GeranFlashRedirectSwitch, UtranFlashRedirectSwitch Unit: None Actual Value Range: LoadBasedSwitch, GeranFlashRedirectSwitch, UtranFlashRedirectSwitch
PS InterRAT Mobility between EUTRAN and CDMA2 000
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72
eRAN Admission and Congestion Control Feature Parameter Description
8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
eNBCell RsvdPar a
RsvdU8 Para13
MOD ENBCE LLRSV DPARA
None
None
Meaning: Indicates reserved U8 parameter 13 that is reserved for future requirements. Note on parameter replacement: Reserved parameters are temporarily used in patch versions and will be replaced with new parameters. For example, the ID of a new parameter can signify the parameter function. Therefore, avoid using this parameter.
LST ENBCE LLRSV DPARA
GUI Value Range: 0~255 Unit: None Actual Value Range: 0~255 Default Value: 0
CellRac Thd
CongRel Offset
MOD CELLR ACTHD LST CELLR ACTHD
LBFD-0 02024 / TDLBF D-00202 4
Congesti on Control
Meaning: Indicates the congestion release offset. The service of a specific QCI exits the congestion state if the satisfaction rate of the service exceeds the sum of this congestion release offset and the congestion threshold for the QCI. The service retains the congestion state if the satisfaction rate is below or equal to the sum of this congestion release offset and the congestion threshold for the QCI. GUI Value Range: 0~50 Unit: % Actual Value Range: 0~50 Default Value: 20
CellRac Thd
Qci1Co ngThd
MOD CELLR ACTHD LST CELLR ACTHD
LBFD-0 02024 / TDLBF D-00202 4
Congesti on Control
Meaning: Indicates the congestion threshold for services with QCI of 1. This threshold applies to both UL and DL. If the satisfaction rate of services with QCI of 1 in the cell becomes lower than this threshold, the services with QCI of 1 enter the congested state. If the satisfaction rate of services with QCI of 1 in the cell becomes higher than the sum of this threshold and the congestion relief offset, the services with QCI of 1 leave the congested state. GUI Value Range: 0~99 Unit: % Actual Value Range: 0~99 Default Value: 65
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eRAN Admission and Congestion Control Feature Parameter Description
8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
CellRac Thd
Qci2Co ngThd
MOD CELLR ACTHD
LBFD-0 02024 / TDLBF D-00202 4
Congesti on Control
Meaning:
LST CELLR ACTHD
Indicates the congestion threshold for services with QCI of 2. This threshold applies to both UL and DL. If the satisfaction rate of services with QCI of 2 in the cell becomes lower than this threshold, the services with QCI of 2 enter the congested state. If the satisfaction rate of services with QCI of 2 in the cell becomes higher than the sum of this threshold and the congestion relief offset, the services with QCI of 2 leave the congested state. GUI Value Range: 0~99 Unit: % Actual Value Range: 0~99 Default Value: 65
CellRac Thd
Qci3Co ngThd
MOD CELLR ACTHD LST CELLR ACTHD
LBFD-0 02024 / TDLBF D-00202 4
Congesti on Control
Meaning: Indicates the congestion threshold for services with QCI of 3. This threshold applies to both UL and DL. If the satisfaction rate of the services with QCI of 3 in the cell becomes lower than this threshold, the services with QCI of 3 enter the congested state. If the satisfaction rate of services with QCI of 3 in the cell becomes higher than the sum of this threshold and the congestion relief offset, the services with QCI of 3 leave the congested state. GUI Value Range: 0~99 Unit: % Actual Value Range: 0~99 Default Value: 65
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eRAN Admission and Congestion Control Feature Parameter Description
8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
CellRac Thd
Qci4Co ngThd
MOD CELLR ACTHD
LBFD-0 02024 / TDLBF D-00202 4
Congesti on Control
Meaning:
LST CELLR ACTHD
Indicates the congestion threshold for services with QCI of 4. This threshold applies to both UL and DL. If the satisfaction rate of services with QCI of 4 in the cell becomes lower than this threshold, the services with QCI of 4 enter the congested state. If the satisfaction rate of services with QCI of 4 in the cell becomes higher than the sum of this threshold and the congestion relief offset, the services with QCI of 4 leave the congested state. GUI Value Range: 0~99 Unit: % Actual Value Range: 0~99 Default Value: 65
CellAlg oSwitch
LocalCe llId
DSP CELLU LCAMC CLUST ER
None
None
Meaning: Indicates the local ID of the cell. It uniquely identifies a cell within a BS. GUI Value Range: 0~255 Unit: None Actual Value Range: 0~255
LST CELLA LGOSW ITCH
Default Value: None
MOD CELLA LGOSW ITCH CellRac Thd
LocalCe llId
LST CELLR ACTHD MOD CELLR ACTHD
None
None
Meaning: Indicates the local cell ID. It uniquely identifies a cell within a BS. GUI Value Range: 0~255 Unit: None Actual Value Range: 0~255 Default Value: None
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eRAN Admission and Congestion Control Feature Parameter Description
8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
CellRac Thd
Qci1Ho Thd
MOD CELLR ACTHD
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning:
LST CELLR ACTHD
Indicates the admission threshold for the handed-over service with QCI of 1. This threshold applies to both UL and DL. If the satisfaction rate of services with QCI of 1 is above or equal to this threshold, the handed-over service with QCI of 1 can be admitted. If the satisfaction rate of services with QCI of 1 is below this threshold, the handed-over service with QCI of 1 cannot be admitted. GUI Value Range: 10~99 Unit: % Actual Value Range: 10~99 Default Value: 90
CellRac Thd
Qci2Ho Thd
MOD CELLR ACTHD LST CELLR ACTHD
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning: Indicates the admission threshold for the handed-over service with QCI of 2. This threshold applies to both UL and DL. If the satisfaction rate of services with QCI of 2 is above or equal to this threshold, the handed-over service with QCI of 2 can be admitted. If the satisfaction rate of services with QCI of 2 is below this threshold, the handed-over service with QCI of 2 cannot be admitted. GUI Value Range: 10~99 Unit: % Actual Value Range: 10~99 Default Value: 90
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eRAN Admission and Congestion Control Feature Parameter Description
8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
CellRac Thd
Qci3Ho Thd
MOD CELLR ACTHD
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning:
LST CELLR ACTHD
Indicates the admission threshold for the handed-over service with QCI of 3. This threshold applies to both UL and DL. If the satisfaction rate of services with QCI of 3 is above or equal to this threshold, the handed-over service with QCI of 3 can be admitted. If the satisfaction rate of services with QCI of 3 is below this threshold, the handed-over service with QCI of 3 cannot be admitted. GUI Value Range: 10~99 Unit: % Actual Value Range: 10~99 Default Value: 90
CellRac Thd
Qci4Ho Thd
MOD CELLR ACTHD LST CELLR ACTHD
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning: Indicates the admission threshold for the handed-over service with QCI of 4. This threshold applies to both UL and DL. If the satisfaction rate of services with QCI of 4 is above or equal to this threshold, the handed-over service with QCI of 4 can be admitted. If the satisfaction rate of services with QCI of 4 is below this threshold, the handed-over service with QCI of 4 cannot be admitted. GUI Value Range: 10~99 Unit: % Actual Value Range: 10~99 Default Value: 90
CellRac Thd
UlRbHi ghThd
MOD CELLR ACTHD LST CELLR ACTHD
Issue 03 (2015-11-03)
LBFD-0 02023 / TDLBF D-00202 3 LBFD-0 02024 / TDLBF D-00202 4
Admissi on Control Congesti on Control
Meaning: Indicates the threshold for deciding on whether the UL RB usage is high. This threshold applies to UL admission decision. If the UL RB usage reported by the MAC layer is above this threshold, the UL RB usage is assumed to be high. GUI Value Range: 10~100 Unit: % Actual Value Range: 10~100 Default Value: 95
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eRAN Admission and Congestion Control Feature Parameter Description
8 Parameters
MO
Parame ter ID
MML Comma nd
Feature ID
Feature Name
Description
CellRac Thd
UlRbLo wThd
MOD CELLR ACTHD
LBFD-0 02023 / TDLBF D-00202 3
Admissi on Control
Meaning: Indicates the threshold for deciding on whether the UL RB usage is low. It applies to UL admission decision. If the UL RB usage reported by the MAC layer is below this threshold, the UL RB usage is assumed to be low.
LST CELLR ACTHD
Issue 03 (2015-11-03)
LBFD-0 02024 / TDLBF D-00202 4
Congesti on Control
GUI Value Range: 10~100 Unit: % Actual Value Range: 10~100 Default Value: 90
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eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
9
Counters
Table 9-1 Counters Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526726657
L.RRC.ConnReq.M sg
Number of RRC connection setup requests (retransmission included)
Multi-mode: None
RRC Connection Management
GSM: None UMTS: None LTE: LBFD-002007
RRC Connection Management
TDLBFD-002007 1526726659
L.RRC.ConnReq.S ucc
Number of RRC connection setup completion times
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002007
RRC Connection Management RRC Connection Management
TDLBFD-002007 1526726760
L.LC.ULCong.Num .Cell
Number of times uplink congestion occurs in a cell
Multi-mode: None
Congestion Control
GSM: None
Congestion Control
UMTS: None LTE: LBFD-002024 TDLBFD-002024
1526726761
L.LC.ULCong.Dur. Cell
Duration of uplink congestion in a cell
Multi-mode: None
Congestion Control
GSM: None
Congestion Control
UMTS: None LTE: LBFD-002024 TDLBFD-002024
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eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526726762
L.LC.DLCong.Num .Cell
Number of times downlink congestion occurs in a cell
Multi-mode: None
Congestion Control
GSM: None
Congestion Control
UMTS: None LTE: LBFD-002024 TDLBFD-002024
1526726763
L.LC.DLCong.Dur. Cell
Duration of downlink congestion in a cell
Multi-mode: None
Congestion Control
GSM: None
Congestion Control
UMTS: None LTE: LBFD-002024 TDLBFD-002024
1526726764
L.LC.User.Rel
Number of service releases due to congestion
Multi-mode: None
Congestion Control
GSM: None
Congestion Control
UMTS: None LTE: LBFD-002024 TDLBFD-002024
1526727544
L.E-RAB.SuccEst
Total number of successful E-RAB setups initiated by UEs in a cell
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Radio Bearer Management
TDLBFD-002008 1526727545
L.E-RAB.AttEst
Total number of ERAB setup attempts initiated by UEs in a cell
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Radio Bearer Management
TDLBFD-002008 1526728274
L.E-RAB.InitAttEst
Total number of initial E-RAB setup attempts initiated by UEs in a cell
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Radio Bearer Management
TDLBFD-002008
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eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526728275
L.ERAB.InitSuccEst
Total number of successful initial ERAB setups initiated by UEs in a cell
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management
TDLBFD-002008 1526728278
L.ERAB.FailEst.RNL
Number of E-RAB setup failures due to faults at the radio network layer
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526728279
L.ERAB.FailEst.NoRa dioRes
Number of E-RAB setup failures due to insufficient radio resources
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526728284
L.ERAB.AbnormRel.C ong
Number of abnormal releases of activated ERABs due to network congestion
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Congestion Control
TDLBFD-002008
Congestion Control
LBFD-002024
Radio/transport resource preemption
TDLBFD-002024 LOFD-00102901 TDLOFD-0010290 1
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Radio Bearer Management
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Radio/transport resource preemption
81
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526728325
L.RRCRedirection.I ntraLTE
Number of intraRAT intra-duplexmode redirections
Multi-mode: None
Admission Control
GSM: None
Admission Control
UMTS: None
Coverage Based Inter-frequency Handover
LTE: LBFD-002023 TDLBFD-002023 LBFD-00201802 TDLBFD-0020180 2 LBFD-00201804 1526728444
L.Cell.UserLimit.Pr eEmp.Num
Number of successful preemptions triggered due to user limitation
Multi-mode: None GSM: None UMTS: None LTE: LOFD-00102901
Coverage Based Inter-frequency Handover Distance Based Inter-frequency Handover Radio/transport resource preemption Radio/transport resource preemption
TDLOFD-0010290 1 1526729495
L.ERAB.AbnormRel.C ong.PLMN
Number of abnormal releases of activated ERABs because of network congestion for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Radio Bearer Management Congestion Control
TDLBFD-002008
Congestion Control
LBFD-002024
Radio/transport resource preemption
TDLBFD-002024 LOFD-00102901 TDLOFD-0010290 1 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
Radio/transport resource preemption RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
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eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729545
L.ERAB.FailEst.NoRa dioRes.SRS
Number of E-RAB setup failures due to insufficient SRS resources
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729546
L.ERAB.FailEst.NoRa dioRes.PUCCH
Number of E-RAB setup failures due to insufficient PUCCH resources
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729631
L.RRCRedirection.I nterFddTdd
Number of intraRAT inter-duplexmode redirections
Multi-mode: None
Admission Control
GSM: None
Admission Control
UMTS: None
Coverage Based Inter-frequency Handover
LTE: LBFD-002023 TDLBFD-002023 LBFD-00201802 TDLBFD-0020180 2 LBFD-00201804 1526729912
L.ERAB.AbnormRel.C ong.PreEmp
Number of abnormal releases of activated ERABs because of radio resource preemption
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Distance Based Inter-frequency Handover Radio Bearer Management Radio Bearer Management Congestion Control
TDLBFD-002008
Congestion Control
LBFD-002024
Radio/transport resource preemption
TDLBFD-002024 LOFD-00102901 TDLOFD-0010290 1
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Coverage Based Inter-frequency Handover
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Radio/transport resource preemption
83
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729913
L.ERAB.AbnormRel.C ong.Load
Number of abnormal releases of activated ERABs because of radio resource overload
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Congestion Control Congestion Control
LBFD-002024 TDLBFD-002024 1526729923
L.ERAB.AbnormRel.C ong.VoIP
Number of abnormal releases of activated ERABs for voice services because of radio network congestion
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 LBFD-002024
Radio/transport resource preemption
TDLOFD-0010290 1 Number of abnormal releases of activated ERABs for voice services because of radio resource preemption
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Congestion Control
LBFD-002024
Radio/transport resource preemption
TDLOFD-0010290 1 Number of abnormal releases of activated ERABs for voice services because of radio resource overload
Radio Bearer Management
Congestion Control
LOFD-00102901
L.ERAB.AbnormRel.C ong.Load.VoIP
Radio/transport resource preemption
TDLBFD-002008 TDLBFD-002024
1526729927
Congestion Control Congestion Control
LOFD-00102901
L.ERAB.AbnormRel.C ong.PreEmp.VoIP
Radio Bearer Management
TDLBFD-002008 TDLBFD-002024
1526729926
Radio Bearer Management
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio/transport resource preemption Radio Bearer Management Radio Bearer Management Congestion Control Congestion Control
LBFD-002024 TDLBFD-002024
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eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729931
L.ERAB.AbnormRel.C ong.PreEmp.PLMN
Number of abnormal releases of activated ERABs because of radio resource preemption for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206 LBFD-002024 TDLBFD-002024 LOFD-00102901 TDLOFD-0010290 1
Radio Bearer Management RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing Congestion Control Congestion Control Radio/transport resource preemption Radio/transport resource preemption
1526729932
L.ERAB.AbnormRel.C ong.Load.PLMN
Number of abnormal releases of activated ERABs because of radio resource overload for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206 LBFD-002024 TDLBFD-002024
Radio Bearer Management Radio Bearer Management RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing Congestion Control Congestion Control
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eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729942
L.ERAB.AbnormRel.C ong.VoIP.PLMN
Number of abnormal releases of activated ERABs for voice services because of radio network congestion for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206 LBFD-002024 TDLBFD-002024 LOFD-00102901 TDLOFD-0010290 1
Radio Bearer Management RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing Congestion Control Congestion Control Radio/transport resource preemption Radio/transport resource preemption
Issue 03 (2015-11-03)
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86
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729947
L.ERAB.AbnormRel.C ong.PreEmp.VoIP.P LMN
Number of abnormal releases of activated ERABs for voice services because of radio resource preemption for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206 LBFD-002024 TDLBFD-002024 LOFD-00102901 TDLOFD-0010290 1
Radio Bearer Management RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing Congestion Control Congestion Control Radio/transport resource preemption Radio/transport resource preemption
1526729948
L.ERAB.AbnormRel.C ong.Load.VoIP.PL MN
Number of abnormal releases of activated ERABs for voice services because of radio resource overload for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206 LBFD-002024 TDLBFD-002024
Radio Bearer Management Radio Bearer Management RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing Congestion Control Congestion Control
Issue 03 (2015-11-03)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
87
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729951
L.ERAB.FailEst.TNL. DLRes
Number of E-RAB setup failures because of insufficient downlink transport resources
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729952
L.ERAB.FailEst.TNL. ULRes
Number of E-RAB setup failures because of insufficient uplink transport resources
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729953
L.ERAB.FailEst.NoRa dioRes.DLThrpLic
Number of E-RAB setup failures because of insufficient licensed downlink traffic volume
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729954
L.ERAB.FailEst.NoRa dioRes.ULThrpLic
Number of E-RAB setup failures because of insufficient licensed uplink traffic volume
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023
Issue 03 (2015-11-03)
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88
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729955
L.ERAB.FailEst.NoRa dioRes.DLSatis
Number of E-RAB setup failures because of a low downlink satisfaction rate
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729956
L.ERAB.FailEst.NoRa dioRes.ULSatis
Number of E-RAB setup failures because of a low uplink satisfaction rate
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729961
L.ERAB.FailEst.NoRa dioRes.VoIP
Number of setup failures of E-RABs for voice services because of insufficient radio resources
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729964
L.ERAB.FailEst.NoRa dioRes.SRS.VoIP
Number of setup failures of E-RABs for voice services because of insufficient SRS resources
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023
Issue 03 (2015-11-03)
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89
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729965
L.ERAB.FailEst.NoRa dioRes.PUCCH.VoI P
Number of setup failures of E-RABs for voice services because of insufficient PUCCH resources
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729966
L.ERAB.FailEst.NoRa dioRes.DLThrpLic. VoIP
Number of setup failures of E-RABs for voice services because of insufficient licensed downlink traffic volume
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729967
L.ERAB.FailEst.NoRa dioRes.ULThrpLic. VoIP
Number of setup failures of E-RABs for voice services because of insufficient licensed uplink traffic volume
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729968
L.ERAB.FailEst.NoRa dioRes.DLSatis.VoI P
Number of setup failures of E-RABs for voice services because of a low downlink satisfaction rate
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023
Issue 03 (2015-11-03)
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90
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729969
L.ERAB.FailEst.NoRa dioRes.ULSatis.VoI P
Number of setup failures of E-RABs for voice services because of a low uplink satisfaction rate
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729970
L.ERAB.FailEst.TNL. DLRes.VoIP
Number of setup failures of E-RABs for voice services because of insufficient downlink transport resources
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526729971
L.ERAB.FailEst.TNL. ULRes.VoIP
Number of setup failures of E-RABs for voice services because of insufficient uplink transport resources
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023
Issue 03 (2015-11-03)
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91
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729973
L.ERAB.FailEst.TNL. DLRes.PLMN
Number of E-RAB setup failures because of insufficient downlink transport resources for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
1526729974
L.ERAB.FailEst.TNL. ULRes.PLMN
Number of E-RAB setup failures because of insufficient uplink transport resources for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
Issue 03 (2015-11-03)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
92
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729975
L.ERAB.FailEst.NoRa dioRes.DLThrpLic. PLMN
Number of E-RAB setup failures because of insufficient downlink licensed traffic volume for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
1526729976
L.ERAB.FailEst.NoRa dioRes.ULThrpLic. PLMN
Number of E-RAB setup failures because of insufficient uplink licensed traffic volume for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
Issue 03 (2015-11-03)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
93
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729977
L.ERAB.FailEst.NoRa dioRes.DLSatis.PL MN
Number of E-RAB setup failures because of a low downlink satisfaction rate for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
1526729978
L.ERAB.FailEst.NoRa dioRes.ULSatis.PL MN
Number of E-RAB setup failures because of a low uplink satisfaction rate for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
Issue 03 (2015-11-03)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
94
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729983
L.ERAB.FailEst.NoRa dioRes.VoIP.PLMN
Number of setup failures of E-RABs for voice services because of insufficient radio resources for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
1526729986
L.ERAB.FailEst.NoRa dioRes.SRS.VoIP.P LMN
Number of setup failures of E-RABs for voice services because of insufficient SRS resources for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
Issue 03 (2015-11-03)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
95
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729987
L.ERAB.FailEst.NoRa dioRes.PUCCH.VoI P.PLMN
Number of setup failures of E-RABs for voice services because of insufficient PUCCH resources for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
1526729988
L.ERAB.FailEst.NoRa dioRes.DLThrpLic. VoIP.PLMN
Number of setup failures of E-RABs for voice services because of insufficient licensed downlink traffic volume for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
Issue 03 (2015-11-03)
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96
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729989
L.ERAB.FailEst.NoRa dioRes.ULThrpLic. VoIP.PLMN
Number of setup failures of E-RABs for voice services because of insufficient licensed uplink traffic volume for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
1526729990
L.ERAB.FailEst.NoRa dioRes.DLSatis.VoI P.PLMN
Number of setup failures of E-RABs for voice services because of a low downlink satisfaction rate for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
Issue 03 (2015-11-03)
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97
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729991
L.ERAB.FailEst.NoRa dioRes.ULSatis.VoI P.PLMN
Number of setup failures of E-RABs for voice services because of a low uplink satisfaction rate for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
1526729992
L.ERAB.FailEst.TNL. DLRes.VoIP.PLMN
Number of setup failures of E-RABs for voice services because of insufficient downlink transport resources for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
Issue 03 (2015-11-03)
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98
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526729993
L.ERAB.FailEst.TNL. ULRes.VoIP.PLMN
Number of setup failures of E-RABs for voice services because of insufficient uplink transport resources for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
1526730100
L.Traffic.Privilege. User.avg
Average number of privileged UEs in a cell
Multi-mode: None
Admission Control
GSM: None
Admission Control
UMTS: None
Emergency Call
LTE: LBFD-002023
Emergency call
TDLBFD-002023 LBFD-002028 TDLBFD-002028 1526730101
L.Traffic.Privilege. User.max
Maximum number of privileged UEs in a cell
Multi-mode: None
Admission Control
GSM: None
Admission Control
UMTS: None
Emergency Call
LTE: LBFD-002023
Emergency call
TDLBFD-002023 LBFD-002028 TDLBFD-002028
Issue 03 (2015-11-03)
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99
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526730830
L.ERAB.FailEst.RNL.e NodeB.NormRel
Number of E-RAB setup failures due to normal release initiated by eNodeB
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526730831
L.ERAB.FailEst.RNL.e NodeB.AbnormRel
Number of E-RAB setup failures due to abnormal release initiated by eNodeB
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
LBFD-002023 TDLBFD-002023 1526736694
L.ERAB.FailEst.NoRa dioRes.DLSatis.QC I2
Number of setup failures of E-RABs with a QCI of 2 because of a low downlink satisfaction rate
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
TDLBFD-002023 LBFD-002023 1526736695
L.ERAB.FailEst.NoRa dioRes.DLSatis.QC I3
Number of setup failures of E-RABs with a QCI of 3 because of a low downlink satisfaction rate
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
TDLBFD-002023 LBFD-002023
Issue 03 (2015-11-03)
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100
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526736696
L.ERAB.FailEst.NoRa dioRes.DLSatis.QC I4
Number of setup failures of E-RABs with a QCI of 4 because of a low downlink satisfaction rate
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Admission Control Admission Control
TDLBFD-002023 LBFD-002023 1526736697
L.ERAB.FailEst.NoRa dioRes.ULSatis.QC I2
Number of setup failures of E-RABs with a QCI of 2 because of a low uplink satisfaction rate
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
TDLBFD-002023 LBFD-002023 1526736698
L.ERAB.FailEst.NoRa dioRes.ULSatis.QC I3
Number of setup failures of E-RABs with a QCI of 3 because of a low uplink satisfaction rate
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
TDLBFD-002023 LBFD-002023 1526736699
L.ERAB.FailEst.NoRa dioRes.ULSatis.QC I4
Number of setup failures of E-RABs with a QCI of 4 because of a low uplink satisfaction rate
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008
Radio Bearer Management Radio Bearer Management Admission Control Admission Control
TDLBFD-002023 LBFD-002023
Issue 03 (2015-11-03)
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101
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526736700
L.ERAB.FailEst.NoRa dioRes.DLSatis.QC I2.PLMN
Number of setup failures of E-RABs with a QCI of 2 because of a low downlink satisfaction rate for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
RAN Sharing with Common Carrier
TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037 LOFD-070206
RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Hybrid RAN Sharing
1526736701
L.ERAB.FailEst.NoRa dioRes.DLSatis.QC I3.PLMN
Number of setup failures of E-RABs with a QCI of 3 because of a low downlink satisfaction rate for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008 LBFD-002023 TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037
Issue 03 (2015-11-03)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Radio Bearer Management Radio Bearer Management Admission Control Admission Control RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier
102
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526736702
L.ERAB.FailEst.NoRa dioRes.DLSatis.QC I4.PLMN
Number of setup failures of E-RABs with a QCI of 4 because of a low downlink satisfaction rate for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008 LBFD-002023 TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037
1526736703
L.ERAB.FailEst.NoRa dioRes.ULSatis.QC I2.PLMN
Number of setup failures of E-RABs with a QCI of 2 because of a low uplink satisfaction rate for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008 LBFD-002023 TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037
Issue 03 (2015-11-03)
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Radio Bearer Management Admission Control Admission Control RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Radio Bearer Management Radio Bearer Management Admission Control Admission Control RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier
103
eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526736704
L.ERAB.FailEst.NoRa dioRes.ULSatis.QC I3.PLMN
Number of setup failures of E-RABs with a QCI of 3 because of a low uplink satisfaction rate for a specific operator
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008 LBFD-002023 TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037
1526736705
L.ERAB.FailEst.NoRa dioRes.ULSatis.QC I4.PLMN
Number of setup failures of E-RABs with a QCI of 4 because of a low uplink satisfaction rate for a specific operator
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008 TDLBFD-002008 LBFD-002023 TDLBFD-002023 LOFD-001036 LOFD-001037 TDLOFD-001036 TDLOFD-001037
1526736856
L.ERAB.FailEst.NoRa dioRes.DLSatis.PT T
Number of E-RAB setup failures for PTT services because of a low downlink satisfaction rate
Multi-mode: None GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Admission Control Admission Control RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Radio Bearer Management Radio Bearer Management Admission Control Admission Control RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier RAN Sharing with Common Carrier RAN Sharing with Dedicated Carrier Radio Bearer Management Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
Enhanced Extended QCI
TDLBFD-002023 LOFD-081218
Enhanced Extended QCI
TDLOFD-081215
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eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526736857
L.ERAB.FailEst.NoRa dioRes.ULSatis.PT T
Number of setup failures of E-RABs for PTT services because of a low uplink satisfaction rate
Multi-mode: None
Radio Bearer Management
GSM: None UMTS: None LTE: LBFD-002008
Radio Bearer Management Admission Control
TDLBFD-002008
Admission Control
LBFD-002023
Enhanced Extended QCI
TDLBFD-002023 LOFD-081218
Enhanced Extended QCI
TDLOFD-081215 1526736866
L.Cell.UserSpec.Pr epEmp.PrepAtt.Nu m
Number of times preemptions are triggered by the limitation of the UE number specification
Multi-mode: None
Admission Control
GSM: None
Admission Control
UMTS: None
Radio/transport resource preemption
LTE: LBFD-002023 TDLBFD-002023 LOFD-00102901
Radio/transport resource preemption
TDLOFD-0010290 1 1526736867
L.Cell.UserLic.Lim it.Num.PLMN
Number of times the licensed number of UEs is limited for a specific operator
Multi-mode: None
Admission Control
GSM: None
Admission Control
UMTS: None
Radio/transport resource preemption
LTE: LBFD-002023 LOFD-00102901
Radio/transport resource preemption
TDLOFD-0010290 1
RAN Sharing with Common Carrier
LOFD-001036
Hybrid RAN Sharing
TDLBFD-002023
LOFD-070206 TDLOFD-001036
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RAN Sharing with Common Carrier
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eRAN Admission and Congestion Control Feature Parameter Description
9 Counters
Counter ID
Counter Name
Counter Description
Feature ID
Feature Name
1526736868
L.Cell.UserLic.Prep Emp.Succ.Num.PL MN
Number of successful preemptions triggered by the limitation of the licensed number of UEs for a specific operator
Multi-mode: None
Admission Control
GSM: None
Admission Control
UMTS: None
Radio/transport resource preemption
LTE: LBFD-002023 LOFD-00102901
Radio/transport resource preemption
TDLOFD-0010290 1
RAN Sharing with Common Carrier
LOFD-001036
Hybrid RAN Sharing
TDLBFD-002023
LOFD-070206
1526736869
L.Cell.UserLic.Lim it.Num
Number of times the licensed number of UEs is limited
TDLOFD-001036
RAN Sharing with Common Carrier
Multi-mode: None
Admission Control
GSM: None
Admission Control
UMTS: None
Radio/transport resource preemption
LTE: LBFD-002023 TDLBFD-002023 LOFD-00102901
Radio/transport resource preemption
TDLOFD-0010290 1 1526736870
L.Cell.UserLic.Prep Emp.Succ.Num
Number of successful preemptions triggered by the limitation of the licensed number of UEs
Multi-mode: None
Admission Control
GSM: None
Admission Control
UMTS: None
Radio/transport resource preemption
LTE: LBFD-002023 TDLBFD-002023 LOFD-00102901
Radio/transport resource preemption
TDLOFD-0010290 1
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10 Glossary
10
Glossary
For the acronyms, abbreviations, terms, and definitions, see Glossary.
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11
11 Reference Documents
Reference Documents
1.
3GPP TS 23.203, "Policy and charging control architecture"
2.
3GPP TS 23.401, "General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access"
3.
3GPP TS 36.306, "User Equipment (UE) radio access capabilities"
4.
3GPP TS 36.321, "Medium Access Control(MAC) protocol specification"
5.
3GPP TS 36.331, "Radio Resource Control (RRC)"
6.
3GPP TS 36.413, "S1 Application Protocol (S1AP)"
7.
Scheduling Feature Parameter Description
8.
Transport Resource Management Feature Parameter Description
9.
Flow Control Feature Parameter Description
10. Flexible User Steering Feature Parameter Description 11. Physical Channel Resource Management Feature Parameter Description
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