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BSC6910 Hardware and Capacity Expansionwww.huawei.comCopyright 2013 Huawei Technologies Co., Ltd. All rights reserved. INTERNALN-1Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 - ContentPage 2BSC6910 Hardware and Capacity ExpansionBSC6910 Configuration PrincipleBSC6910 Commissioning GuideTransmission Resource Pool in RNC/BSCBSC6910 WCDMA Initial Data Configuration

Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-2Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 - A New-Generation Large-Capacity RNCPage 3

3 x User Plane (Throughput: 40 Gbit/s120 Gbit/s)12 x Control Plane (BHCA: 5.3 KK->64 KK)N in 1 Processing Board (Unified Board)Cloud Architecture for Future (Ready for RNC in POOL)Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-3Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 - Cabinet

1. Subrack: PARCb subracks are used. Boards are installed on the front and rear sides of the backplane. One subrack provides 28 slots. Subracks are powered independently. (The BSC6900 cabinet is powered in a centralized manner.)

2. Air channel: Each subrack is provided with an independent air channel, with the air intake vent at the front side and air exhaust vent at the rear side. (The BSC6900 cabinet uses a centralized air channel, with the air intake vent at the bottom and air exhaust vent at the top.)

3. Cable trough: The rear half of each subrack is provided with a cable trough for optical fibers. (Cable troughs are provided at both the front and rear half of each subrack in the BSC6900 cabinet.)

4. Cabinet: The appearance of BSC6910 cabinet is the same as BSC6900 cabinet, but their power distribution and ventilation methods are different. Therefore, the BSC6910 cannot use the cabinet of the BSC6900.

5. The BSC6910 can be configured with two cabinets with six subracks at most. The concepts of the main processing subrack (MPS) and main processing rack (MPR) are the same as those of BSC6900.Page 4The hardware configuration for the BSC6910 UMTS is as follows: Minimum: one cabinet with a main processing subrack (MPS)Maximum: two cabinets with an MPS and five extended processing subracks (EPSs)Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-4Confidential Information of Huawei. No Spreading Without Permission Course Name

BSC6910 Power Connection between PDF and BSCTo create backup, connect OUTPUT A and OUTPUT B to a different power supply groupPDF connect to the power inputs on each subrackIn each subrack, there are 2 power entry modules(PEMs).In each PEM, there are 2 power inputs.PEM 00 and PEM 01 work in active and standby mode. It work concurrently in normal case. If either of them become faulty, the other PEM continues to supply power to the system.The 2 power out puts of PEM work in load sharing mode. Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-5Confidential Information of Huawei. No Spreading Without Permission Course NamePage 6

BSC6910 Relationship between power outputs and inputsCopyright 2013 Huawei Technologies Co., Ltd. All rights reserved. BSC6910 - Interconnection Between SubracksPage 71. BSC6910 uses the switching board SCUb of BSC6900. The interconnection mode between subracks is the same as the mode adopted for the BSC6900.

2. 4 x 10GE ports are used to form chain interconnection among subracks of the BSC6910.

3. SCUb boards are interconnected using power cables by default, but the interconnection distance between subracks is 10 m at most. Optical fibers can be used for achieving a longer interconnection distance.

Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-7Confidential Information of Huawei. No Spreading Without Permission Course Name

BSC6910 - Subracks Each subrack is provided with two layers of fan boxes. Each subrack is configured with two power entry modules (PEMs) working in load sharing mode. Each PEM is connected to two 63 Amps current outputs on the power distribution frame (PDF) The two PEMs of one subrack are connected to different PDF current outputs so that one PEM failure or one group of PDF output failure will not interrupt the power supply.Page 8

Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-8Confidential Information of Huawei. No Spreading Without Permission Course NameAppearance of the PEMFunctions of the PEMProvides power supply, surge protection and filteringMonitors the input power and input voltage of subrackMonitors the status od air circuits and of surge protection circuitsPage 9

Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. BSC6910 - SlotsPage 10

1 Front board slot2 Backplane3 Rear board slot4 switching board slot41. Each BSC6910 subrack provides 28 slots, among which there are sixteen 2 x 10GE slots and ten 4 x GE slots.

2. SCUb boards that used as the switching board are inserted in slots 20 and 21 fixedly. 3. EOMUa boards are inserted in slots 10 to 13 of the MPS subrack. Those fixed slots are different from those of the BSC6900.

4. The rear board slot only provides the cable through for optical fibers. The interface board needs to be inserted in the rear subrack. 5. This is different in BSC6900. 10GE interface boards, such as EXOUa, can use slots 16 to 19 and slots 22 to 25. Other interface boards can use any slots in the rear half of the subrack.

6. Slots 8 and 9 of the MPS subrack are fixedly configured with one pair of EGPUa boards, forming 1+1 redundancy for resource management of the entire system.

7. Other EGPUa boards for service processing form a resource pool. They can be inserted in any slots. However, they are preferentially installed in the front half of the subrack because the rear half is reserved for interface boards. 10GE portGE portCopyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-10Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 - BoardsPage 11FunctionPhysical BoardDescriptionOMUEOMUaEvolved OMU boardSAUESAUaEvolved SAU boardUCUPEGPUa/EXPUa(EXPUa used only on 2G networks)Evolved General Processing boardGCUPRMPGMCPNASPINTEXOUaEvolved 10GE interface boardNIUENIUaEvolved Network Intelligence UnitFunctionPhysical BoardDescriptionSCUSCUbGE Switch and Control BoardGCKGCUa/GCGaGeneral Clock UnitINTGOUc/FG2cIP transmission interface boardAOUc/UOIcATM transmission interface boardPOUcTDM Interface Unit(4 STM-1, Channelized)New boardsReused boards* The SPU and DPU processing boards of BSC6900 is replaced by single processing board EGPU.* RMP: Resource Management Processing, for managing resources* GCUP: GSM CP and UP Processing, for processing GSM services* UCUP: UMTS CP and UP Processing, for processing UMTS services* EXPUa: used only on the GSM network, with the same specifications as EGPUaCopyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-11Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 EGPUa BoardPage 12

DPUbDPUeSPUaSPUbDPUdDPUgXPUaXPUbEGPUa EGPU boards in BSC6910 use for both control and user plane which work in N+1 configuration. Also the EGPU boards process both CS and PS user data For EGPU board, it automatically adjust the NodeB or cell on the board. There is on requirement for specify subsystem number while configuring NodeB When it is used on the UMTS control plane, its processing capability is equal to 6.4 times of the processing capability of an SPUb board. When it is used on the UMTS user plane, its processing capability is equal to 2.5 times of the processing capability of a DPUe board.

DPUcDPUf

Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-12Confidential Information of Huawei. No Spreading Without Permission Course NameEGPU Processing capabilityPage 13

Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. BSC6910 - EOMUa and ESAUaPage 14

The EOMUa board and ESAUa board of the BSC6910 also have the functions of the OMUa board and SAUa board of the BS6900 and provide stronger processing capability and larger storage space (CPU: Intel X86 8-core, memory: 32 GB, hard disk: 600 GB).Each EOMUa board or ESAUa board uses two slots.An EOMUa board can provide 4 times of space of an OMUa board for storing call history records (CHRs).1 Captive screw2 Front panel3 Self-locking latch4 RUN indicator5 ALM indicator6 ACT indicator7 RESET button8 SHUTDOWN button9 USB interface10 ETH0 port11 ETH1 port12 ETH2 port13 VGA interface14 HD0_RAID/ ALM indicator15 HD0_ACT indicator16 HD1_RAID/ ALM indicator17 HD1_ACT indicator18 OFFLINE indicator19 Hard disk20 Screw fixing the hard diskCopyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-14Confidential Information of Huawei. No Spreading Without Permission Course NameEOMUa and ESAUa BoardEvolved Operation and Maintenance2 Boards must be installed on BSC6910One EOMUa board occupies 2 slots.Its recommended that EOMUa boards be installed in a lot 10 and 12 of MPS.Performs the configuration management, fault management, security management and loading management functions for the system.Enables LMT or M2000 users to perform operation and maintenance on the BSC6910 to control the communication between the LMT or M2000 and the host boards of BSC6910Evolved Service Aware UnitESAUa board collects and preprocesses the data reported by NEs. Then upload the data to M2000One ESAUa board occupies two slots. ESAUa boards can be installed in slots where the SCUb, GCUa, and GCGa boards are not installed. It is recommended that the ESAUa board be installed in slots 0 to 1Page 15Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. BSC6910 EXOUa BoardPage 16Evolved 2 10GE Port Optical Interface Unit. The EXOUa boards can be installed in slots 16 to 19 and 22 to 25. An 10GE interface board EXOUa of the BSC6910 provides two 10GE optical interfaces.An EXOUa board supports 75,000 Erl or 10 Gbit/s PS service throughput. The EXOUa board supports 1,500 base stations.

Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-16Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6900BSC6910Cabinet Power consumption4,800 W + 4,800 W7,100 W7,100 W + 7,100 WUMTS CapacityBHCA 5,300 KIub throughput 40 Gbit/sNodeB 3,000Cell 5,100BHCA 32,000 KIub throughput 60 Gbit/sNodeB 5,000Cell 10,000BHCA 64,000 KIub throughput 120 Gbit/sNodeB 10,000Cell 20,000GSM CapacityTwo-cabinet configuration is not supported.Specifications of a single cabinet: All IPs: 8,192 TRXs, 45,000 ErlAll IP: 24,000 TRXs, 150,000 ErlAbis TDM+A IP: 10,000 TRXs, 62,500 ErlTwo-cabinet configuration is not supported.BSC6910 - System CapacityPage 17

*7,100 W is a software limitation for BSC6910 to lower the impact to equipment room.BSC6910 heat dissipation system has the capability to support 6000 W per subrack, and is ready for future evolution.

Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-17Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 - Board Resource PoolPage 18In BSC6910, a pair of EGPUa boards are configured for resource management processing (RMP) using 1+1 backup.

1. The service processing board EGPUa can be configured as the UCUP mode for processing UMTS services

2. Resources in the GSM and UMTS resource pools cannot be automatically shared, but they can be shared after the logical type of the EGPUa board is changed.

3. Being different from the 1+1 master and backup SPUb boards, the EGPUa boards in the two resource pools both work in the master status and no backup EGPUa boards are provided.

4. The UP part on the EGPUa board is not backed up, which is similar to the DPUe board. The CP part is backed up by software progresses hashed on the neighboring boards. Upon faults, some progresses enter the master state, replacing the functions of the backup SPUb board. Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-18Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 - UCUP Resource Pool and Resource SharingPage 19

1. All CP subsystems in RNC form a CP POOL.2. All UP subsystems in RNC form a UP POOL.On UMTS networks, the traffic model changes frequently, which greatly affects the processing capability of the CP/UP. BSC6910 supports manual and automatic capability sharing between the CP and UP.When the EGPUa board is used for UCUP, the multiple subsystems on the board are used for CP or UP processing. The CP and UP are dynamically adjusted by performing the following operations: Stop some subsystems, then restart these subsystems and enable them to use new software functions, and add them to a new resource pool.

CPUPCPUPResource Sharing (UMTS Only)* Introduction to the RNC UP and CP Resource Sharing Feature describes this feature.Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-19Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 - NodeB/Cell Resource Management SharingPage 20Resource Sharing (UMTS Only)

1. In initial configuration, the system automatically selects the processing subsystems of NodeBs and cells.2. When the system is running, adding a new board or the emergence of a hotspot cell or hotspot site will lead to load imbalance between subsystems. The BSC6910 can monitor the status of subsystems and automatically adjust load.* Introduction to the Automatic NodeB and Cell Allocation in the RNC Feature describes this feature.* This feature is only applied in UMTS networks. This feature is not supported by GSM networks because the traffic model on GSM networks is relatively table. Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-20Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 - UMTS Dimensioning PrinciplesPage 21

DimensionBSC6900BSC6910CapacitySignaling boardsSPUbEGPUa1 pcs EGPUa = 6.4 pairs of SPUbUser traffic boardsDPUeEGPUa1 pcs EGPUa = 2.5 pcs DPUeInterface boardsGOUcFG2cAOUcUOIcGOUcFG2cAOUcUOIcNo changeInterface boardsEXOUa75,000 Erl, or 10 Gbit/s PS service throughput, 1500 NodeBService awareness boards NIUaENIUa1 pcs ENIUa = 2.5 pcs NIUaFunctional boards of BSC6910 and BSC6900 are compared as follows:Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-21Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 - UMTS Dimensioning PrinciplesPage 22The UMTS dimensioning principles of BSC6910 is basically the same as BSC6900. The only difference is that the dimension of an SPUb board and DPUe board is replaced by the dimension of a EGPUa board.The number of EGPUa boards on the CP and UP are calculated separately based on the capability requirements of the network on the CP and UP. The following formula is used: Total number of EGPUa boards = Number of EGPUa boards used on the CP + Number of EGPUa boards used on the UP + One backup EGPUa board at least + Two EGPUa boards used for resource managementThe CPU overload threshold of the BSC6910 is 70%BoardUsed forSpecificationMemoEGPUaUP OnlyPS Throughput 2,000 Mbit/s or 10,050 CS Erlang, 1,400 cells, 28,000 active users, unlimited on-line usersPS throughput is calculated based on the UL/DL rate of 64/384 kbit/s.CP Only1.668 KK BHCA, 700 NodeBs and 1,400 cells, 36,000 active users, 70,000 on-line usersBusy hour call attempts (BHCAs) are calculated based on Huawei smartphone traffic model.Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-22Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 - Hardware Capacity License Page 23The license control mechanism of BSC6910 is basically the same as BSC6900, including feature licenses, system capacity licenses, and hardware licenses.

The feature license functions based on features and is basically the same as that of the BSC6900. (For details about the features supported by the BSC6910 and features not supported by the BSC6910 but supported by the BSC6900, see the Feature List in RAN15.0.)

The system capacity license has the same dimension as that of BSC6900. By default, 1 CS Erlang is equal to 64 kbit/s PS throughput in the BSC6900. In the BSC6910, 1 CS Erlang is equal to 24.4 kbit/s PS throughput. The conversion coefficient in the BSC6910 is commonly used. If only the PS traffic capacity is for sales, the conversion coefficient customized for sales is used.

The new EGPUa board has a larger capacity and can be shared by the GSM and UMTS. A hardware license is required to control the board capacity. The hardware license is similar to that of the DPUe board of the BSC6900. The major difference is that the DPUe board has 335 Mbit/s capacity when the hardware license is not activated, while the EGPUa board has no capacity if the hardware license is not activated. Hardware licenses include:

3G: -Hardware capacity sold based on every 50 Mbit/s throughput on the RNC-Hardware capacity sold based on every 1000 active users on the RNC (active users refers to online users in the CELL_DCH state and CELL_FACH state.)2G: -Hardware capacity sold based on every TRX on the BSC-Hardware capacity sold based on every PDCH on the BSCCopyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-23Confidential Information of Huawei. No Spreading Without Permission Course NameBSC6910 - Power Consumption CalculationPage 24* This table is used for power consumption calculation. It is for internal use only and should not be spread without permission.Calculation Formula: System power consumption = Pavg x Number of each type of boards + Pavg of fans)Heat dissipation capability in the equipment room = System power consumptionMaximum subrack power consumption = 4,000 W, Maximum cabinet power consumption = 7,100 WConcepts: Average power consumption (Pavg) is the estimated value in a typical operating environment. The maximum power consumption mentioned in hardware description is obtained when all devices on boards are full-loaded. This maximum power consumption cannot be obtained under the actual system running conditions. Therefore, Pavg is provided for power consumption calculation.Maximum subrack power consumption is 4,000 W (including the power consumption of fans) which is obtained when all slots of the subrack are configured with boards. It is recommended that power distribution be configured as 4000 W per subrack. This can save power distribution adjustment upon future capacity expansion. Maximum cabinet power consumption is 7,100 W which is the upper limit of the heat dissipation capability in the equipment room and obtained based on survey and research. Therefore, the maximum cabinet power consumption is not 12,000 W.DescriptionPavgFan Box200EGPUa/EXPUa/ENIUa/EXOUa102GCGa20SCUb80GOUc/FG2c/AOUc/UOIc/POUc80EOMUa/ESAUa102Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-24Confidential Information of Huawei. No Spreading Without Permission Course NameSummaryPage 25With new hardware platforms, software platforms, and universal processing boards, the BSC6910 achieves significant system capacity expansion. Therefore, the BSC6910 can better adapt to the signaling impact of smart phones on the network.

The tools and features for BSC6900 operation and maintenance (O&M) are also used for BSC6910 O&M. Besides, BSC6910 O&M is simplified by sharing the UP and CP and automatically allocating NodeBs and cells.Copyright 2013 Huawei Technologies Co., Ltd. All rights reserved. N-25Confidential Information of Huawei. No Spreading Without Permission Course NamePEM transit card

Copper bar

Copper bar

Subrack backplane

Slot 14

Slot 0

Slot 20

Slot 6

Slot 7

Slot 13

Slot 27

Slot 21

PEM transit card

Copper bar

Copper bar

Subrack backplane

Slot 14

Slot 0

Slot 20

Slot 6

Slot 7

Slot 13

Slot 27

Slot 21

UP POOL

CP

CP

CP

CP POOL

UP

UP

UP

Automatic Allocation

GPU1

GPU2

GPU1

GPU3

GPU2

Add boards

GPU1

GPU3

GPU2

Automatic reallocation

NodeB1

NodeB2

NodeB3

NodeB1

NodeB2

NodeB3

NodeB1

NodeB2

NodeB3