LampSite V100R008C00
Technical Description Issue
02
Date
2014-08-27
HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2014. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Technologies Co., Ltd. Address:
Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China
Website:
http://www.huawei.com
Email:
[email protected]
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LampSite Technical Description
About This Document
About This Document The LampSite solution is designed by Huawei to expand system capacity, fill in coverage holes, and provide in-depth indoor coverage for multiple networking modes. This document describes the base stations for the LampSite solution in terms of physical devices, typical configurations, typical networking, and product specifications to facilitate customers' understanding of the LampSite solution. NOTE
Unless otherwise specified, LTE in this document includes LTE FDD.
Product Version The following table lists the product versions related to this document. Product Name
Solution Version
Product Version
DBS3900
l SRAN8.0
V100R008C00
l RAN15.0 l eRAN6.0
Intended Audience This document is intended for: l
Network planning engineers
l
Field engineers
l
System engineers
Organization 1 Changes in the LampSite Technical Description This section describes changes in the LampSite Technical Description of each version. 2 LampSite Products Issue 02 (2014-08-27)
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LampSite Technical Description
About This Document
This section describes products and application scenarios of the LampSite solution. 3 Physical Devices For the LampSite solution, the base station comprises the BBU, pRRU, and RHUB. These modules can be flexibly combined to meet different scenario requirements. 4 Typical Configurations This section describes the configuration principle and typical configurations of the LampSite solution. 5 Typical Networking This section describes the CPRI network topology of the LampSite deployed indoors and CPRI cable connection principles. 6 Product Specifications Product specifications of the 3900 series base stations include technical specifications of the BBU3900, pRRU3901, and RHUB3908.
Conventions Symbol Conventions The symbols that may be found in this document are defined as follows. Symbol
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General Conventions The general conventions that may be found in this document are defined as follows. Issue 02 (2014-08-27)
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About This Document
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Description
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Boldface
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Italic
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[]
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{ x | y | ... }
Optional items are grouped in braces and separated by vertical bars. One item is selected.
[ x | y | ... ]
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GUI Conventions The GUI conventions that may be found in this document are defined as follows. Convention
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Buttons, menus, parameters, tabs, window, and dialog titles are in boldface. For example, click OK.
>
Multi-level menus are in boldface and separated by the ">" signs. For example, choose File > Create > Folder.
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About This Document
The keyboard operations that may be found in this document are defined as follows. Format
Description
Key
Press the key. For example, press Enter and press Tab.
Key 1+Key 2
Press the keys concurrently. For example, pressing Ctrl+Alt +A means the three keys should be pressed concurrently.
Key 1, Key 2
Press the keys in turn. For example, pressing Alt, A means the two keys should be pressed in turn.
Mouse Operations The mouse operations that may be found in this document are defined as follows.
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Action
Description
Click
Select and release the primary mouse button without moving the pointer.
Double-click
Press the primary mouse button twice continuously and quickly without moving the pointer.
Drag
Press and hold the primary mouse button and move the pointer to a certain position.
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LampSite Technical Description
Contents
Contents About This Document.....................................................................................................................ii 1 Changes in the LampSite Technical Description....................................................................1 2 LampSite Products.........................................................................................................................3 3 Physical Devices............................................................................................................................6 3.1 BBU3900........................................................................................................................................................................7 3.2 pRRU..............................................................................................................................................................................7 3.3 RHUB.............................................................................................................................................................................8
4 Typical Configurations.................................................................................................................9 5 Typical Networking....................................................................................................................13 6 Product Specifications................................................................................................................16 6.1 Technical Specifications of BBUs................................................................................................................................17 6.1.1 Capacity Specifications.............................................................................................................................................17 6.1.2 Baseband Specifications............................................................................................................................................18 6.1.3 CPRI Specifications...................................................................................................................................................22 6.2 pRRU3901 Technical Specifications............................................................................................................................24 6.3 RHUB3908 Technical Specifications...........................................................................................................................29
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1 Changes in the LampSite Technical Description
1
Changes in the LampSite Technical Description
This section describes changes in the LampSite Technical Description of each version.
02 (2014-08-27) This is issue 02. Compared with 01 (2014-05-30), no information is added or deleted. Compared with 01 (2014-05-30), this issue incorporates the following change: Content
Change Description
3.2 pRRU
Deleted the note: When external antennas are used, the built-in antenna still works. However, signal transmission over external antennas is not affected.
6.1.1 Capacity Specifications
Added the information about WBBPf3.
6.1.2 Baseband Specifications 6.1.3 CPRI Specifications
Modified the CPRI specifications of the WBBP, and LBBP.
01 (2014-05-30) This is issue 01. Compared with 3900 Series Base Station Technical Description in (For Customer)3900 Series Base Station Product Documentation-(V100R008C00_01, LampSite)(HDX)-EN, this issue incorporates the following change: l
Issue 02 (2014-08-27)
LampSite Technical Description only includes the descriptions of pRRU, RHUB, pRRU3901 technical specifications, and RHUB3908 technical specifications in 3900 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
1
LampSite Technical Description
1 Changes in the LampSite Technical Description
Series Base Station Technical Description. For other information, see 3900 Series Base Station Technical Description. l
Issue 02 (2014-08-27)
Added the information about LampSite solution.
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LampSite Technical Description
2 LampSite Products
2
LampSite Products
This section describes products and application scenarios of the LampSite solution.
Product Overview In the LampSite solution, the base station is a distributed base station for providing indoor coverage and can work in different modes and at frequency bands. The base station comprises functional modules (such as the BBU3900, RHUB3908, and pRRU3901) and auxiliary equipment (such as the external antenna of the pRRU3901 and Extender). This document describes the LampSite solution in UMTS, LTE, or UMTS+LTE FDD mode. Figure 2-1 shows the product architecture of the LampSite solution. Table 2-1 Functions of LampSite modules Module
Function
BBU3900
The BBU3900 is a baseband processing unit and centrally manages the entire base station. For details, see 3.1 BBU3900.
pRRU
The pRRU works as a remote radio unit to process radio frequency signals. For details, see 3.2 pRRU.
RHUB
The RHUB3908 is a remote CPRI data convergence unit. It supports the communication between pRRUs and the BBU. For details, see 3.3 RHUB.
Auxiliary equipment
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External antenna
The external antenna system is optional, and it is configured when there is no built-in antenna. The pRRU jumpers are not delivered. For details, see LampSite Hardware Description.
Extender
An Extender can be used to extend the distance between an RHUB and a pRRU to 200 m at most. For details, see LampSite Hardware Description.
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2 LampSite Products
Figure 2-1 Architecture of the LampSite solution in UMTS, LTE, or UMTS+LTE FDD mode
NOTE
l
Figure 2-1 only shows the hardware architecture in each mode. The BBU can be configured with baseband boards at different modes to meet requirements of different scenarios. The pRRUs can be configured with RF cards of different RATs so that it can work in different modes.
l
Currently, RHUB in LampSite networking cannot share the BBU with the RF modules of macro base stations.
l
Cables of Category 5e (enhanced) or higher specification are used to connect the RHUBs and pRRUs.
Application Scenarios The LampSite solution is used for providing indoor coverage in heavy-traffic indoor scenarios, such as office buildings, shopping malls, and hotels. Figure 2-2 shows the application of the LampSite solution in an office building, where the BBU is installed in the equipment room and the RHUB3908s and pRRU3901s are installed in the offices.
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2 LampSite Products
Figure 2-2 Application of the LampSite solution in an office building
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LampSite Technical Description
3 Physical Devices
3
Physical Devices
About This Chapter For the LampSite solution, the base station comprises the BBU, pRRU, and RHUB. These modules can be flexibly combined to meet different scenario requirements. 3.1 BBU3900 The BBU3900 (BBU for short) is a baseband processing unit and centrally manages the entire base station. 3.2 pRRU The pRRU works as a remote radio unit to process radio frequency signals. 3.3 RHUB The RHUB3908 is a remote CPRI data convergence unit. It supports the communication between pRRUs and the BBU.
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3 Physical Devices
3.1 BBU3900 The BBU3900 (BBU for short) is a baseband processing unit and centrally manages the entire base station. The BBU provides the following functions: l
Manages the entire base station system in terms of operation, maintenance, signaling processing, and system clock.
l
Processes uplink and downlink data, and provides common public radio interfaces (CPRIs) for the communication between the BBU and RF modules.
l
Provides physical ports for information exchange between the base station and the transport network.
l
Provides an OM channel between the base station and the operation and maintenance center (OMC).
l
Provides ports for receiving and transmitting signals from environment monitoring devices.
With a case structure, the BBU can house different types of boards and modules. For configurations principles and functions of boards and modules, see BBU3900 Hardware Description, which also provides information about ports, indicators, and DIP switches on these boards and modules. For technical specifications of a BBU, see 6.1 Technical Specifications of BBUs.
3.2 pRRU The pRRU works as a remote radio unit to process radio frequency signals. The CPRI data can be transmitted using the Ethernet cable. The main functions of the pRRU are as follows: l
The transmit channel receives the baseband signals from the BBU and performs digital-toanalog conversion. The baseband signals are up-converted to the transmit frequency band using the zero IF technology. The pRRU then filters and amplifies the signals, which are sent to the antenna for transmission.
l
The receive channel receives the RF signals from the antenna. Then, the RF signals are down-converted to baseband signals using the zero IF technology and sent to the BBU for processing after being filtered and amplified.
l
The pRRU3901 supports built-in or external antennas.
l
The pRRU3901 supports PoE and AC/DC adapter as the power supply.
l
Multiple networking configurations, because of built-in RF cards for different radio access technologies (RATs).
For details about the functions, ports, and indicators of a pRRU3901, see LampSite Hardware Description. For technical specifications of a pRRU3901, see 6.2 pRRU3901 Technical Specifications. NOTE
In this document, pRRU refers to pRRU3901, unless otherwise specified.
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3 Physical Devices
3.3 RHUB The RHUB3908 is a remote CPRI data convergence unit. It supports the communication between pRRUs and the BBU. The RHUB3908 works with the BBU and pRRU3901 to provide indoor coverage. The main functions of the RHUB3908 are as follows: l
Receives downlink baseband signals from the BBU, splits these signals, and transmits them to pRRU3901s.
l
Receives uplink baseband signals from pRRU3901s, combines these signals, and transmits them to the BBU.
l
Supplies power to pRRU3901s using the built-in Power over Ethernet (PoE) technology.
For details about the exterior, ports, and indicators of an RHUB3908, see LampSite Hardware Description. For technical specifications of an RHUB3908, see 6.3 RHUB3908 Technical Specifications.
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4 Typical Configurations
4
Typical Configurations
This section describes the configuration principle and typical configurations of the LampSite solution.
Configuration Principle The following are the configuration principles of the LampSite solution: l
UMTS networking – One RHUB supports a maximum of two independent sector equipment groups. – A pRRU can be configured with one UMTS RF daughter board only. An RF daughter board can be configured with two continuous UMTS carriers or one independent UMTS carrier. – One BBU supports a maximum of 12 RHUBs. – One BBU supports a maximum of 96 pRRUs. – A cell can be served by a maximum of 96 pRRUs concurrently. – Four-level RHUB cascading is supported on a CPRI link, and the RF combining for a maximum of 16 pRRUs is supported on this link.
l
LTE networking – One RHUB supports a maximum of four independent sector equipment groups, and each sector supports only one cell. – One BBU supports a maximum of 12 RHUBs. – One BBU supports a maximum of 96 pRRUs. – A cell can be served by a maximum of 48 pRRUs concurrently. – The RF combining of a maximum of 8 pRRUs served by one RHUB is supported.
l
Multi-mode networking – In multi-mode networking, configurations of different RATs are performed separately. – In the separate-MPT multi-mode scenario, one BBU supports a maximum of 48 pRRUs. – In the co-MPT scenario, one BBU supports a maximum of 48 pRRUs.
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4 Typical Configurations
Typical Configurations Table 4-1 lists the typical configurations of the LampSite solution, in which the WBBPf4 and LBBPd3 boards are used. Specifications of the baseband boards are as follows: l
Each WBBPf4 board supports a maximum of six UTRAN cells.
l
Each LBBPd3 board supports a maximum of six E-UTRAN cells. NOTE
The typical configurations in Table 4-1 use the maximum configurations of one CPRI link as an example. The configurations can be flexibly provided as the customer requires.
Table 4-1 Typical configurations of the LampSite solution Mode
Typical Configuration
Number of Modules
BBU Configurations
LTE
One cell per RHUB, without the combining among different RHUBs
4 RHUB + 32 pRRU
1 UMPT + 1 LBBPd
Two cells per RHUB, without the combining among different RHUBs
2 RHUB + 16 pRRU
1 UMPT + 1 LBBPd
Four cells per RHUB
1 RHUB + 8 pRRU
1 UMPT + 1 LBBPd
One cell per RHUB, without the combining among different RHUBs
4 RHUB + 32 pRRU
1 UMPT + 1 WBBPf
Two cells per RHUB, without the combining among different RHUBs
4 RHUB + 32 pRRU
1 UMPT + 2 WBBPf
Two cells per RHUB, with the combining of every two cascading RHUBs
4 RHUB + 32 pRRU
1 UMPT + 1 WBBPf
Two cells per RHUB, with the combining of every four cascading RHUBs
4 RHUB + 16 pRRU
1 UMPT + 1 WBBPf
UMTS
UMTS + LTE
l LTE(FDD): One cell per 4 RHUB + 16 pRRU RHUB
1 UMPT + 1 LBBPd + 2 WBBPf
l UMTS: Two cells per RHUB, without the combining among different RHUBs
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4 Typical Configurations
Mode
Typical Configuration
Number of Modules
BBU Configurations
l LTE(FDD): Two cells per RHUB
2 RHUB + 8 pRRU
1 UMPT + 1 LBBPd + 1 WBBPf
l UMTS: Two cells per RHUB, without the combining among different RHUBs l LTE(FDD): One cell per 4 RHUB + 16 pRRU RHUB
1 UMPT + 1 LBBPd + 1 WBBPf
l UMTS: Two cells per RHUB, with the combining of every two cascading RHUBs l LTE(FDD): Two cells per RHUB
2 RHUB + 8 pRRU
1 UMPT + 1 LBBPd + 1 WBBPf
l UMTS: Two cells per RHUB, with the combining of every two cascading RHUBs l LTE(FDD): One cell per 4 RHUB + 16 pRRU RHUB
1 UMPT + 1 LBBPd + 1 WBBPf
l UMTS: Two cells per RHUB, with the combining of every four cascading RHUBs
NOTE
l In UMTS + LTE mode, when an LTE (15 MHz or 20 MHz) network is used, the pRRU must connect to the RHUB through two Ethernet cables to carry the CPRI data separately for each mode. Therefore, one RHUB can connect to a maximum of four pRRUs. Table 4-2 lists the number of required Ethernet cables for the LampSite solution in different scenarios. l Combine in the table indicates combination of pRRU cells.
One pRRU has three slots, in which RF cards in different modes can be configured to achieve flexible multi-mode configurations. One pRRU can be configured with a maximum of two RF daughter boards. Table 4-2 lists the number of required Ethernet cables for the LampSite solution in different scenarios.
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4 Typical Configurations
Table 4-2 Number of required Ethernet cables for the LampSite solution Scenario
RF Daughter Board for UMTS
RF Daughter Board for LTE
Number of Ethernet Cables
Scenario 1: With RF daughter boards for UMTS only
1C/2C
—
1
Scenario 2: With one RF daughter board for LTE only
—
5 MHz/10 MHz/ 15 MHz/20 MHz
1
Scenario 3: With one RF daughter board for UMTS, one RF daughter board for LTE
1C/2C
5 MHz/10 MHz
1
1C/2C
15 MHz/20 MHz
2
NOTE
Fields in the preceding table are described as follows: l
1C/2C: indicates carrier configurations of an RF daughter board for UMTS.
l
5M/10M/15M/20M: indicates the bandwidth configuration of an RF daughter board for LTE.
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LampSite Technical Description
5 Typical Networking
5
Typical Networking
This section describes the CPRI network topology of the LampSite deployed indoors and CPRI cable connection principles.
CPRI Topology The following pictures illustrate the LampSite CPRI topologies. Figure 5-1 LampSite CPRI star topology
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LampSite Technical Description
5 Typical Networking
Figure 5-2 LampSite CPRI chain topology
Example of Networking for Two-level RHUB Cascading A maximum of four RHUBs can be cascaded. If two RHUBs are cascaded, Figure 5-3 shows the connections among the BBU, RHUBs, and pRRUs in UMTS, LTE, or UMTS+LTE FDD mode. Connections among the BBU, RHUBs, and pRRUs are also the same for three- or fourlevel RHUB cascading. Figure 5-3 Networking for two-level RHUB cascading
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LampSite Technical Description
5 Typical Networking NOTE
l Some scenarios require two Ethernet cables to transmit CPRI signals, then use two Ethernet cables to connect the RHUB and pRRU. l The BBU is configured with different baseband boards to meet different scenarios requirements.
CPRI Cable Connection Principles The following table lists the CPRI cable connection principles for different modes. Mode
Module Configuratio n
CPRI Cable Connection Principle
UMTS
BBU + RHUB
The WBBPf boards in slot 2 or 3 on the BBU can provide CPRI ports.
RHUB + RHUB
In RHUB cascade scenarios, the CPRI0 or CPRI1 port on one RHUB is connected to the CPRI1 or CPRI0 port on the next-level RHUB.
BBU + RHUB
l The LBBPd boards support only LTE 2:1 compression of CPRI data and process respective baseband signals, but do not support baseband aggregation.
RHUB + RHUB
In RHUB cascade scenarios, the CPRI0 or CPRI1 port on one RHUB is connected to the CPRI1 or CPRI0 port on the next-level RHUB.
BBU + RHUB
l Only the baseband board in slot 2 or 3 on the BBU can provide CPRI ports.
LTE(FDD)
UMTS + LTE FDD
l One WBBPf board and LBBPd board must be installed in slots 2 and 3 of the BBU respectively. For example, if one WBBPf board is configured in slot 2, one LBBPd board must be configured in slot 3. If one LBBPd board is configured in slot 3, one WBBPf board must be configured in slot 2. l If the BBU works in separate-MPT dual mode, only the baseband board of one mode (either WBBPf or LBBPd) can provide CPRI ports. A single BBU can provide 6 UMTS+LTE FDD CPRI ports at most. RHUB + RHUB
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In RHUB cascade scenarios, the CPRI0 or CPRI1 port on one RHUB is connected to the CPRI1 or CPRI0 port on the next-level RHUB.
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LampSite Technical Description
6 Product Specifications
6
Product Specifications
About This Chapter Product specifications of the 3900 series base stations include technical specifications of the BBU3900, pRRU3901, and RHUB3908. 6.1 Technical Specifications of BBUs This section describes the technical specifications of the BBU, including capacity specifications, baseband specifications, and CPRI specifications. For signaling specifications, transmission port specifications, and engineering specifications, please see 3900 Series Base Station Technical Description. 6.2 pRRU3901 Technical Specifications This section describes the technical specifications of the pRRU3901, including the supported modes and frequency bands, RF specifications, engineering specifications, CPRI specifications, and antenna capability. 6.3 RHUB3908 Technical Specifications This section describes the technical specifications of an RHUB3908, including power consumption and power supply, engineering specifications, and CPRI port specifications.
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6 Product Specifications
6.1 Technical Specifications of BBUs This section describes the technical specifications of the BBU, including capacity specifications, baseband specifications, and CPRI specifications. For signaling specifications, transmission port specifications, and engineering specifications, please see 3900 Series Base Station Technical Description.
6.1.1 Capacity Specifications This section describes the capacity specifications of the base stations working in different modes. The following tables list the capacity specifications of the base stations working in different modes. Table 6-1 Capacity specifications of the base stations working in UMTS mode Mode
Capacity
UMTS
A single site supports a maximum of 12 cells. l Uplink: 6144 CEs l Downlink: 6144 CEs
Table 6-2 Capacity specifications of the base stations working in LTE(FDD) mode Item
Board Configuration
Specifications
Data radio bearer (DRB)
—
A maximum of 8 DRBs can transmit data of a UE at the same time.
Maximum number of cells per eNodeB
One UMPT is configured
BBU3900: 18 (2T2R)
Maximum number of BHCAs per eNodeB
One UMPT is configured
432000
The LBBPd board is configured
l Downlink rate at the MAC layer: 150 Mbit/s (2x2 MIMO, 64 QAM)
NOTE BHCA is short for busy hour call attempt.
Maximum throughput per cell (the bandwidth is 20 MHz)
l Uplink rate at the MAC layer: 100 Mbit/s (2x4 MU-MIMO or 2x2 MUMIMO, 16 QAM)
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LampSite Technical Description
6 Product Specifications
Item
Board Configuration
Specifications
Maximum throughput per eNodeB (packet size: 550 bytes)
The UMPT is configured
The UL and DL data rates at the MAC layer are 1500 Mbit/s.
Maximum number of UEs in RRC_CONNECTED mode per eNodeB
One LBBPd1 is configured
l 5MHz: 1800 l 10 MHz/15 MHz/20 MHz: 3600
Three LBBPd1 boards are configured
l 5MHz: 5400
One LBBPd3 is configured
l 5 MHz/10 MHz/15 MHz/ 20 MHz: 3600
Three LBBPd3 boards are configured
l 5 MHz/10 MHz/15 MHz/ 20 MHz: 10800
l 10 MHz/15 MHz/20 MHz: 10800
Table 6-3 Capacity specifications of the base stations working in UMTS + LTE(FDD) mode Board Configuration
Specifications
1 UMPT + 2 WBBPf + 4 LBBPd1
12 UTRAN cells + 12 E-UTRAN cells
1 UMPT + 1 WBBPf + 5 LBBPd1
6 UTRAN cells + 15 E-UTRAN cells
1 UMPT + 2 WBBPf + 3 LBBPd3
12 UTRAN cells + 18 E-UTRAN cells
NOTE
LampSite base stations support BBU boards of the following types: l
Boards in UMTS and LTE(FDD) modes: l Main control board: UMPTb l Baseband processing board: LBBPd1, LBBPd3, WBBPf3, and WBBPf4
6.1.2 Baseband Specifications This section describes the LampSite base stations.
Baseband Specifications of NodeBs Table 6-4 lists the WBBPf specifications. NOTE
The baseband board in slot 2 or slot 3 on the BBU3900 can transfer the received CPRI data to other boards.
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6 Product Specifications
Table 6-4 WBBPf specifications Board
Number of Cells
Number of UL CEs
Number of DL CEs
Number of HSDPA Codes
Number of HSDPA UEs
Number of HSUPA UEs
WBBPf3
6
256
384
6x15
256
256
384
512
512
768
6x15
384
384
WBBPf4
6
Baseband Specifications (Number of Cells) Supported by eNodeBs Table 6-5 lists the number of cells, bandwidth, and antenna configurations supported by a single LBBP in LTE FDD scenarios. Table 6-5 Specifications of the LBBP/UBBP in LTE FDD scenarios Board
Number of Cells
Cell Bandwidth
Antenna Configuration
LBBPd1
3
5 MHz, 10 MHz, 15 MHz, and 20 MHz
3x20M 1T1R 3x20M 1T2R 3x20M 2T2R
LBBPd3
6
6x20M 1T1R 6x20M 1T2R 6x20M 2T2R
Baseband Specifications (Maximum number of RRC_CONNECTED UEs) Supported by eNodeBs Table 6-6 lists the maximum number of RRC_CONNECTED UEs per cell of an eNodeB in LTE FDD mode. Table 6-6 Maximum number of RRC_CONNECTED UEs per cell of an eNodeB in LTE FDD mode
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Cell Bandwidth (MHz)
Maximum Number of RRC_CONNECTED UEs Per Cell
5
600
10/15/20
1200
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Table 6-7 lists the maximum number of RRC_CONNECTED UEs supported by the UMPTb1/ UMPTb2 working in LTE mode. Table 6-7 Maximum number of RRC_CONNECTED UEs Board
Maximum Number of RRC_CONNECTED UEs
UMPTb1/UMPTb2
10800
Table 6-8 lists the maximum number of RRC_CONNECTED UEs supported by the LBBP/ UBBP in LTE FDD scenarios. Table 6-8 Maximum number of RRC_CONNECTED UEs Board
Cell Bandwidth (MHz)
Maximum Number of RRC_CONNECTED UEs
LBBPd1
5
1800
10/15/20
3600
5/10/15/20
3600
LBBPd3
The maximum number of RRC_CONNECTED UEs supported by an eNodeB is calculated by the following formula: Maximum RRC_CONNECTED UEs supported by an eNodeB = Min (Maximum RRC_connected UEs supported by the main control board, N x Maximum RRC_CONNECTED UEs supported by an LBBP) The main control board is the UMPT and N is the number of LBBP boards in the eNodeB. The following table lists the maximum number of RRC_CONNECTED UEs per cell of an eNodeB that uses typical board configuration in LTE FDD mode. Table 6-9 Maximum number of RRC_CONNECTED UEs per cell of an eNodeB in LTE FDD mode Board Combination
Cell Bandwidth (MHz)
Maximum Number of RRC_CONNECTED UEs
1 UMPT + 5 LBBPd3
5/10/15/20
10800
Baseband Specifications (Maximum Number of DRB) Supported by eNodeBs The maximum number of DRB per user is 8. Issue 02 (2014-08-27)
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The maximum number of DRB supported by an LMPT/LBBP/UMPT is three times the maximum RRC_CONNECTED users supported by the board. The maximum number of DRB supported by an entire eNodeB is 32400.
Baseband Specifications (Maximum Throughput) Supported by eNodeBs The following table lists the UL and DL throughput of an LTE FDD cell or UE. Table 6-10 UL and DL throughput of an LTE FDD cell or UE Item
Cell Bandwidth
Specifications
Maximum throughput of a cell
5MHz
l DL cell MAC layer throughput: 36Mbps (at 2x2 MIMO, 64QAM) l UL cell MAC layer throughput: 27Mbps (at 2x2 MU-MIMO, 16QAM) l UL cell MAC layer throughput: 13Mbps (at 1x4 SIMO, 16QAM) l UL cell MAC layer throughput: 27Mbps (at 2x4 MU-MIMO, 16QAM)
10MHz
l DL cell MAC layer throughput: 73Mbps (at 2x2 MIMO, 64QAM) l UL cell MAC layer throughput: 43Mbps (at 2x2 MU-MIMO, 16QAM) l UL cell MAC layer throughput: 27Mbps (at 1x4 SIMO, 16QAM) l UL cell MAC layer throughput: 43Mbps (at 2x4 MU-MIMO, 16QAM)
15MHz
l DL cell MAC layer throughput: 110Mbps (at 2x2 MIMO, 64QAM) l UL cell MAC layer throughput: 57Mbps (at 2x2 MU-MIMO, 16QAM) l UL cell MAC layer throughput: 40Mbps (at 1x4 SIMO, 16QAM) l UL cell MAC layer throughput: 57Mbps (at 2x4 MU-MIMO, 16QAM)
20MHz
l DL cell MAC layer throughput: 150Mbps (at 2x2 MIMO, 64QAM) l UL cell MAC layer throughput: 70Mbps (at 2x2 MU-MIMO, 16QAM) l UL cell MAC layer throughput: 55Mbps (at 1x4 SIMO, 16QAM) l UL cell MAC layer throughput: 70Mbps (at 2x4 MU-MIMO, 16QAM)
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Item
Cell Bandwidth
Specifications
Maximum throughput of a UE
5MHz
l Single user DL MAC layer throughput: 36Mbps (at 2x2 MIMO, 64QAM) l Single user UL MAC layer throughput: 13Mbps (at 1x2 SIMO/1x4 SIMO, 16QAM)
10MHz
l Single user DL MAC layer throughput: 73Mbps (at 2x2 MIMO, 64QAM) l Single user UL MAC layer throughput: 27Mbps (at 1x2 SIMO/1x4 SIMO, 16QAM)
15MHz
l Single user DL MAC layer throughput: 110Mbps (at 2x2 MIMO, 64QAM) l Single user UL MAC layer throughput: 40Mbps (at 1x2 SIMO/1x4 SIMO, 16QAM)
20MHz
l Single user DL MAC layer throughput: 150 Mbps (at 2x2 MIMO, 64QAM) l Single user UL MAC layer throughput: 51 Mbps (at 1x2 SIMO/1x4 SIMO, 16QAM)
6.1.3 CPRI Specifications This section describes the CPRI specifications of the WBBP, and LBBP.
CPRI specifications of a WBBP The following table lists the specifications of CPRI ports on the WBBP. Table 6-11 Specifications of CPRI ports on the WBBP Board
Number of CPRI Ports
CPRI Port Rate (Gbit/s)
Topology Type
WBBPf3
6
1.25/2.5/4.9/6.144
WBBPf4
6
1.25/2.5/4.9/9.8
Star, chain, and ring topologies
CPRI ports with different rates support different numbers of cells, as listed in the following table. Table 6-12 Mapping between the CPRI port rate and the number of cells
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CPRI Port Rate (Gbit/s)
Number of 1T2R Cells
1.25
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CPRI Port Rate (Gbit/s)
Number of 1T2R Cells
2.5
3
4.9
6
6.144
8
9.8
10
CPRI specifications of an LBBP The following table lists the specifications of CPRI ports on the LBBP. Table 6-13 Specifications of CPRI ports on the LBBP Board
Number of CPRI Ports
CPRI Port Rate (Gbit/s)
Topology Type
LBBPc
6
1.25/2.5/4.9
LBBPd
6
1.25/2.5/4.9/9.8
Star, chain, and ring topologies
NOTE
The LBBPc board only supports LTE(TDD).
CPRI ports with different rates support different numbers of cells, Table 6-14 lists the mapping between the CPRI port rate and the number of cells in LTE scenarios. Table 6-14 Mapping between the CPRI port rate and the number of cells in LTE Scenarios CPRI Port Rate (Gbit/s)
CPRI Compression a
Number of 2T2R Cells
1.25
Not in use
1 (cell bandwidth = 5 MHz or 10 MHz)
In use
1 (cell bandwidth = 5 MHz, 10 MHz, 15 MHz, or 20 MHz)
Not in use
l 4 (cell bandwidth = 5 MHz)
2.5
l 2 (cell bandwidth = 10 MHz) l 1 (cell bandwidth = 15 MHz or 20 MHz) In use
l 6 (cell bandwidth = 5 MHz) l 3 (cell bandwidth = 10 MHz) l 2 (cell bandwidth = 15 MHz or 20 MHz)
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CPRI Port Rate (Gbit/s)
CPRI Compression a
Number of 2T2R Cells
4.9
Not in use
l 8 (cell bandwidth = 5 MHz) l 4 (cell bandwidth = 10 MHz) l 2 (cell bandwidth = 15 MHz or 20 MHz) l 12 (cell bandwidth = 5 MHz)
In use
l 6 (cell bandwidth = 10 MHz) l 4 (cell bandwidth = 15 MHz or 20 MHz) 9.8
l 16 (cell bandwidth = 5 MHz)
Not in use
l 8 (cell bandwidth = 10 MHz) l 4 (cell bandwidth = 15 MHz or 20 MHz) l 24 (cell bandwidth = 5 MHz)
In use
l 12 (cell bandwidth = 10 MHz) l 8 (cell bandwidth = 15 MHz or 20 MHz) NOTE l a: Setting the CPRI extension switch to on affects the carrier specifications supported by the 9.8 Gbit/ s LBBPd only in CPRI compression. For details about the CPRI extension switch, see the CPRIEX switch in the MOD BBP or LST BBP command. An LBBPd can only use CPRI ports 0, 1, and 2 when the CPRI extension switch is set to on. l The CPRI port rate 1.25 Gbit/s is not recommended, for the transmission bandwidth is limited.
6.2 pRRU3901 Technical Specifications This section describes the technical specifications of the pRRU3901, including the supported modes and frequency bands, RF specifications, engineering specifications, CPRI specifications, and antenna capability.
RF Specifications Table 6-15 lists the modes and frequency bands supported by the pRRU3901. Table 6-15 Modes and frequency bands supported by the pRRU3901
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Scenario
Mode
Frequency Band (MHz)
RX Frequency Band (MHz)
TX Frequency Band (MHz)
2.1G UMTS
UMTS
2100
1920 to 1980
2110 to 2170
1.8G LTE (FDD)
LTE(FDD)
1800
1710 to 1785
1805 to 1880
full band
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Scenario
Mode
Frequency Band (MHz)
RX Frequency Band (MHz)
TX Frequency Band (MHz)
2.1G UMTS + 1.8G LTE (FDD)
UMTS
2100
1920 to 1980
2110 to 2170
LTE(FDD)
1800
1710 to 1785
1805 to 1880
UMTS
2100
1920 to 1980
2110 to 2170
LTE(FDD)
2100
1920 to 1980
2110 to 2170
full band 2.1G UMTS + 2.1G LTE (FDD)
full band 2.6G LTE (FDD)
LTE(FDD)
2600
2500 to 2570
2620 to 2690
2.1G UMTS +2.6G LTE (FDD)
UMTS
2100
1920 to 1980
2110 to 2170
LTE(FDD)
2600
2500 to 2570
2620 to 2690
PCS UMTS +PCS LTE (FDD)
UMTS
PCS
1850 to 1910
1930 to 1990
AWS UMTS +AWS LTE (FDD)
UMTS
AWS
1710 to 1755
2110 to 2155
PCS UMTS +AWS LTE (FDD)
UMTS
PCS
1850 to 1910
1930 to 1990
LTE(FDD)
AWS
1710 to 1755
2110 to 2155
LTE(FDD)
LTE(FDD)
Table 6-16 lists other RF specifications of a pRRU3901. NOTE
l ATBR in the RX and TX Channels column indicates that the RF module has A transmit channels and B receive channels l CxD in the Maximum Output Power column indicates that this RF module has C TX channels and the maximum output power for each TX channel is D mW. l Maximum output power = Maximum output power of the PA - Internal loss. The maximum output power is measured at the antenna port. l The LTE receiver sensitivity is measured, as recommended in 3GPP TS 36.104, under a 5 MHz channel bandwidth based on the FRC A1-3 in Annex A.1 (QPSK, R = 1/3, 25 RBs) standard. l The 11 configuration indicates that two continuous carriers are configured and the spacing between the center frequencies of two neighboring carriers is 5 MHz. In 101 or 1001 configuration, discontinuous carriers are configured. The value 0 indicates the spacing of 5 MHz. For example, the 1001 configuration indicates that two discontinuous carriers are configured and the spacing between the center frequencies of the two carriers is 15 MHz.
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Table 6-16 RF specifications of a pRRU3901 Mode
RX and TX Channel s
Capacit y
Receiver Sensitiv ity with One Antenna (dBm)
Maximum Output Power (mW)
Power Consumption
UMTS
1T1R/ 1T2R
2 carriers
-112
l 1 carrier: 1 x 200
l Power consumption per pRRU3901
l 2 carriers: – 80 mW per carrier in 11 or 1001 configuratio n – 40 mW per carrier in 101 configuratio n
LTE
2T2R
1 carrier. The bandwidt h per carrier is 5, 10, 15, or 20 MHz.
-94
2 x 100
Table 6-17 Power consumption per pRRU3901 Number of RF Cards
Maximum Power Consumption (W)
1
30
2
50
Table 6-18 lists the internal antenna specifications of a pRRU3901. Table 6-18 Internal antenna specifications of a pRRU3901
Issue 02 (2014-08-27)
Mode
Frequency Band (MHz)
Gain (dBi)
Polarization Mode
Directionality
UMTS
2100, PCS
2
Linear
Omnidirectiona l
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Mode
LTE(FDD)
LTE(TDD)
Frequency Band (MHz)
Gain (dBi)
Polarization Mode
Directionality
AWS
1
Linear
Omnidirectiona l
1800, 2100, 2600
2
Linear
Omnidirectiona l
AWS
1
Linear
Omnidirectiona l
2300, 2500
2
Linear
Omnidirectiona l
Engineering Specifications Table 6-19 lists the equipment specifications of a pRRU3901. Table 6-19 Equipment specifications of a pRRU3901 Input Voltage
Dimension (Length x Width x Height)
Weight (kg)
l PoE power supply: –36V DC to –60V DC
230mm x 230mm x 50mm
≤2
l AC/DC power supply: – 110V AC: 100V AC to 120V AC – 220V AC: 200V AC to 240V AC
Table 6-20 lists the environmental specifications of a pRRU3901.
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Table 6-20 Environmental specifications of a pRRU3901 Operating Temperature
Storage Temperatu re
Relative Humidity
Air Pressure
Protection Rating
Storage Time
l Ceiling installation: -5°C to 40°C
-40°C to +70°C
5% RH to 95% RH
70kPa to 106kPa
IP20
It is recommend ed that the device be installed and used within one year after its delivery because of the failure rate.
l Wallmounted installation: -5°C to 45°C
Table 6-21 lists the surge protection specifications of ports on a pRRU3901. Table 6-21 Table 1-29 Surge protection specifications of ports on a pRRU3901 Port
Application Scenarios
Surge Protection Mode
Surge Protection Specifications
Power port
Applicable to indoor scenarios
Differential mode
2 kV (1.2/50 μs)
Common mode
4 kV (1.2/50 μs)
Specifications of CPRI Ports Table 6-22 lists the specifications of CPRI ports on a pRRU3901.
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Table 6-22 Specifications of CPRI ports on a pRRU3901 Port Type
Number of CPRI Ports
CPRI Data Rate (Gbit/ s)
CPRI-based Topology
Maximum Distance from the BBU (m)
RJ45
2
1
The RHUB supports the star topologies. In this scenario, an RHUB can be connected to a maximum of eight pRRUs.
The pRRU and RHUB are connected by CAT5e or upper category cables. With the internal PoE module providing power, the distance of the two devices extends up to 100 m, or 200 m if an Extender is installed.
Antenna Capability The pRRU3901 supports both built-in and external antennas. Each RF daughter board supports two external antenna ports and the gain of the built-in antenna is 2 dBi. Table 6-23 lists the antenna capability of a pRRU3901. Table 6-23 Antenna capability of a pRRU3901 Type
TMA Support
RET Antenna Support
pRRU3901
Not supported
Not supported
6.3 RHUB3908 Technical Specifications This section describes the technical specifications of an RHUB3908, including power consumption and power supply, engineering specifications, and CPRI port specifications.
Power Consumption and Power Supply Specifications Table 6-24 lists the power consumption and power supply specifications of an RHUB3908. Table 6-24 Power consumption and power supply specifications of an RHUB3908 Item
Specification
Maximum power consumption
323 W The RHUB3908 is configured with the single-frequency pRRU and all eight CPRI_E ports are used.
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Item
Specification 437 W The RHUB3908 is configured with the double-frequency pRRU and all eight CPRI_E ports are used.
Output Power
8 x 90 W NOTE A CPRI_E provides a power supply of 90 W.
Engineering Specifications Table 6-25 lists the equipment specifications of an RHUB3908. Table 6-25 Equipment specifications of an RHUB3908 Input Voltage
Dimension (Length x Width x Height)
Weight (kg)
l 110V AC: 100 V AC to 120 V AC
482mm x 310mm x 43.6mm
6
l 220V AC: 200 V AC to 240 V AC
Table 6-26 lists the environmental specifications of an RHUB3908. Table 6-26 Environmental specifications of an RHUB3908 Operating Temperature
Relative Humidity
Air Pressure
Protection Rating
Storage Time
-5°C to +50°C
5% RH to 95% RH
70 kPa to 106 kPa
IP20
It is recommended that the device be installed and used within one year after its delivery because of the failure rate.
Table 6-27 lists the Surge protection specifications of ports on an RHUB3908.
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Table 6-27 Surge protection specifications of ports on an RHUB3908 Port
Application Scenarios
Surge Protection Mode
Surge Protection Specifications
Power supply port
Applicable to indoor scenarios
Differential mode
2 kV (1.2/50 μs)
Common mode
4 kV (1.2/50 μs)
CPRI Ports Specifications Table 6-28 lists the specifications of CPRI ports on an RHUB3908.
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Table 6-28 Specifications of CPRI ports on an RHUB3908 Silkscree n
Descripti on
CPRI Data Rate (Gbit/s)
CPRIbased Topolog y
Cascadin g Level
Maximu m Distance from the BBU (m)
Number of Physical Cells / Carrier Supporte d
CPRI0/ CPRI1
Optical port used for signal transmissi on between the RHUB and a BBU or between the RHUB and the upperlevel/ lowerlevel RHUB.
1.25/2.5/4. 9/9.8
Chain or star
4
The maximum distance from the BBU to the lowestlevel RHUB390 8 is 10 km. The maximum distance between two RHUB390 8s is 2 km.
l UMTS :A maxim um of 12 physic al cells are support ed when CPRI data rate reaches 9.8 Gbit/s. l LTE: A maxim um of 18 carriers are support ed when CPRI data rate reaches 9.8 Gbit/s.
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Silkscree n
Descripti on
CPRI Data Rate (Gbit/s)
CPRIbased Topolog y
Cascadin g Level
Maximu m Distance from the BBU (m)
Number of Physical Cells / Carrier Supporte d
PWR/ CPRI_E0 to E7
This port is used to connect pRRU390 1s.
1
Branch chain (singlelink) topology or branch load sharing topology
N/A
N/A
N/A
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