Owc003700 Bsc6900 Wcdma v900r014 Product Description Issue 1.01

P-0BSC6900 V900R014 Product Description

Confidential Information of Huawei. No Spreading Without Permission

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z The interfaces between the BSC6900 UMTS and each NE in the UMTS network are as follows:

Uu: interface between the Universal Terrestrial Radio Access Network (UTRAN) and the UE

Iub interface: interface between the BSC6900 UMTS and the NodeB

Iur interface: interface between the BSC6900 UMTS and other RNCs

Iu-CS interface: interface between the BSC6900 UMTS and the Mobile Switching Center (MSC) or Media Gateway (MGW)Center (MSC) or Media Gateway (MGW)

Iu-PS interface: interface between the BSC6900 UMTS and the Serving GPRS Support Node (SGSN)

Iu-BC interface: interface between the BSC6900 UMTS and the CBC

z The interfaces between the BSC6900 GSM and each NE in the GSM network are as follows:

Um: interface between the BSC6900 GSM and the MS

Abis: interface between the BSC6900 GSM and the BTS

A: interface between the BSC6900 GSM and the MSC or MGW

Gb: interface between the BSC6900 GSM and the SGSN

The A, Um, and Gb interfaces are standard interfaces and support interconnections with equipment of other vendors.

The BSC6900 GU performs functions such as radio resource management, base station management, power control, and handover control.



z Typical configuration specifications of BSC6900 UMTS subrack (HW69 R13 boards)

Specification/Subrack Configuration

1 MPS 1 MPS + 1 EPS

1 MPS + 2 EPSs

1 MPS +3EPSs

1 MPS + 4 EPSs

1 MPS + 5 EPSs

BHCA (k) 620 1240 1860 2480 3100 3720BHCA (k) 620 1240 1860 2480 3100 3720

Traffic (Erl) 16,750 33,500 50,250 67,000 83,750 100,500

PS (UL + DL)data throughput(Mbit/s)

4000 8000 12,000 16,000 20,000 24,000

(Mbit/s)

Number of NodeBs

900 1800 2700 3060 3060 3060

Number of cells

1500 3000 4500 5100 5100 5100

Note:The BHCA capability and traffic specification are based on Huawei traffic model.


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z The BSC6900 can be flexibly configured as a BSC6900 GSM only, BSC6900 UMTS only, or BSC6900 GU as required in different networks. The BSC6900 GSM, in compliance with the 3GPP R9, operates as an independent NE to access the GSM network and performs the functions of the GSM BSC. With the support of EDGE+, the BSC6900 GSM can be upgraded to the BSC6900 GU through addition of UMTS boards and software upgrade.


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z High integration and low cost The BSC6900 caters to the mobile network requirements for high capacity with few sites,

therefore requiring a smaller equipment room and less power consumption. In addition, the BSC6900 meets the increasing requirements of the fast growth of services and protects the investment of the operator.

z Easy configuration and convenient maintenance The BSC6900 has a small variety of boards, such as the interface processing board, OM board,

switching processing board, signaling processing board, service processing board, and clock processing board. The simplification of board types reduces the maintenance cost. The interface processing boards and service processing boards are flexible in configuration and easy to maintain and expand because they are not bound.

z All-IP platform meeting the varying needs for network evolution Based on its all-IP platform, the BSC6900 betters the PS service performance. The interfaces

support IP transmission, which provides sufficient bandwidth and saves transmission cost. Based on the unified all-IP platform in the UMTS and GSM networks, the BSC6900 UMTS conforms to the growing trend of broadband in the wireless network and meets the requirements for network convergence and evolution.

z Smooth evolution for investment protection The BSC6900 is compatible with the hardware configuration of the BSC6810. Through

software loading, the BSC6810 in the existing network can be upgraded to the BSC6900 UMTS. The BSC6900 UMTS can be added with hardware and software of BSC6900 GSM to evolve to BSC6900 GU. This saves the investment of the operator.

z SA: Service Awareness z PTT: Push to Talk


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Item Specification

Dimensions 2,200 mm x 600 mm x 800 mm (H x W x D)

Height of the available space 46 U

Cabinet weightEmpty cabinet 100 kg Full configuration 300 kg

Power input -48 V DC

Power range -40 V to -57 V

EMC Standards ETSI EN300 386 89/336/EEC


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z MPR The Main Processing Rack (MPR) is a mandatory cabinet of the BSC6900.

Only one MPR is configured in the BSC6900. z EPR

You can choose not to configure an Extended Processing Rack (EPR) or configure one EPR depending on the traffic to be processed by the BSC6900.

Component Configuration

Power distribution box

Only one power distribution box is required by a BSC6900.

z A main processing rack (MPR) is configured with a main

Subrack

A main processing rack (MPR) is configured with a main processing subrack (MPS) and 0 to 2 extended processing subracks (EPSs).z An extended processing rack (EPR) is configured with one to three extended processing surbacks (EPSs).z A transcoder rack (TCR) is configured with one to three transcoder surbacks (TCSs).

Air defenseAir defense frame Two air defense frame are required by a BSC6900.

Rear cable trough Three rear cable troughs are required by a BSC6900.


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z The MPR consists of main processing subracks (MPS) and extended processing subracks (EPS).

z MPS

The MPS is located in the MPR. The BSC6900 is configured with an MPS, which

performs service processing and OM functions, and provides system clock signals.

z EPS

EPS is optional for a RNC. Whether to configure an EPS depends on the network

dimensioning. It can be configured in an MPR or EPR to perform main service

processing.


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z The EPR and EPS are optional. An EPR is configured with a maximum of three EPSs.


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Item Sub-item Specification

Input

Rated input voltage -48 V DC/-60 V DC

Input voltage scope -40 V DC to -72 V DC

Input modeTwo groups of power inputs: A and B. Group A consists of the power inputs A1+A2 and A3. Group B consists of the power inputs B1+B2 and B3. Each group has one or two -48 V DC or -60 V DC power inputs.

Maximum power input The maximum rated input current of each route is 100 A.

Rated output voltage -48 V DC/-60 V DC

Output voltage scope -40 V DC to -72 V DC

OutputOutput mode and current

Two groups of power outputs: A and B. Each group has one to four -48 V DC or -60 V DC power outputs. The maximum rated output current of each output is 50 A and that of each group is 100 A.Each output is controlled by air circuit breakers: A7-A10 and B7-B10. These MCBs provide the overcurrent protection function.

Output protection The overcurrent protection point is 70 A. You need to manually switch on the corresponding air circuit breaker after thespecifications switch on the corresponding air circuit breaker after the overcurrent protection.

Rated output power 9,600 W (Two groups of power outputs: A and B. Each group has two -48 V DC power outputs.)


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z Both the MPS and EPS subracks are 12 U shielded subracks of Huawei. The main components of the subrack are the fan box, boards, and front cable trough.

z 1 U = 44.45 mm = 1.75 inch

Weight of an empty cabinet: 25 kg;

Weight of a fully configured cabinet: 57 kg

z Each subrack is configured with a fan box to dissipate heat from the subrack.

z Each RNC subrack has a 8-bit DIP switch, which is used to set the subrack number.


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z As the DIP switch uses odd parity check, the number of 1s in the eight bits must be an odd b Th th d f tti th bit i f ll number. The method for setting the bits is as follows:

z Set bit 1 to bit 5 as required.

z Set bit 7 to ON.

z Set bit 8 to OFF.

z Check the number of 1s in the seven bits of the DIP switch.

If h b f 1 i bi 6 OFF If the number of 1s is even, set bit 6 to OFF.

If the number of 1s is odd, set bit 6 to ON.

Bit Description

1-5Used for setting the subrack number. Bit 1 is the least significant bit. If the bit is set to ON, it indicates 0. If the bit is set to OFF, it indicates 1.

6 Odd parity check bit 7 Reserved, undefined, generally set to ON 8 Reserved, undefined


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z Each subrack provides a total of 28 slots. The 14 slots on the front side of the backplane are numbered from 0 to 13, and those on the rear side from 14 to 27.

z Two neighboring slots, such as slot 0 and slot 1 or slot 2 and slot 3, can be configured as a pair of active/standby slots. A pair of active and standby boards must be installed in a pair of

active and standby slots.


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z Each MPS provides 28 slots, with 14 slots on the front side and 14 slots on the rear side.h b d i h S i l l h O i lz Each board in the MPS occupies only one slot, except that an OMUa occupies two slots.

z SPUIt is required working in active and standby mode, can be configured in slot 05811,1423The recommend configure sequence is 4,5,2,3,0,1,16,17,14,15.One subrack supports full configuration with 9 pairs of SPU boards.

z DPU: Can be configured in slot 05811,1423the recommend configure sequence is 8,9,10,11,18. One subrack supports full configuration with 9 DPU boards.

z INT:Can be configured in slot 1423 (FG2cGOUcUOIc priority in slot 1623 )It is recommended that the smallest slot number of INT board is more than the largest slot number of DPU board

FG2cGOUc and UOIc require slot flow traffic capacity is 2G, otherwise packet is likely to loss when heavy traffic.

Wh SCU b d d l t 14 15 24 27 t 1G fl t ffi itWhen SCUa boards are used, slot 1415 2427 support 1G flow traffic capacity.When SCUb boards are used, slot 1415 supports 1G flow traffic capacity.

z Other boardsSCUGCU/GCG boards are configured in the fix slots, they are in active and standby mode. The OMU boards can be installed in slots 0 to 3, slots 20 to 23, or slots 24 to 27 in the MPS. Slots 24 to 27 are recommended.

One OMUc board occupies one slotconfiguring in slot 24 to 25 is recommended. z The INT boards (interface boards)z The INT boards (interface boards)

Consist of the following types of boards: AEUa, AOUa/AOUc, UOIa/UOIc, PEUa, POUa/POUc, FG2a/FG2c, and GOUa/GOUc.


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z Each EPS has 14 slots in the front and 14 slots in the rear. z The differences between MPS and EPS are as follows:

The EPS should not configured with any GCU, GCG, or OMU board.

Each board in the EPS occupies only one slot.

z SPUIt is required working in active and standby mode, can be configured in slot 05827.The recommend configure sequence is 4,5,2,3,0,1,12,13,14,15.

One subrack supports full configuration with 9 pairs of SPU boards.

z DPU: Can be configured in slot 05827the recommend configure sequence is 8,9,10,11,16. One subrack supports full configuration with 9 DPU boards.

z INT:Can be configured in slot 1427 (FG2cGOUcUOIc priority in slot 1623 )It is recommended that the smallest slot number of INT board is more than the largest slot number of DPU board

FG2cGOUc and UOIc require slot flow traffic capacity is 2G, otherwise packet is likely to loss when heavy traffic.

When SCUa boards are used, slot 1415 2427 support 1G flow traffic capacity.When SCUb boards are used, slot 1415 supports 1G flow traffic capacity.

z The INT boards (interface boards)z The INT boards (interface boards) Consist of the following types of boards: AEUa, AOUa/AOUc, UOIa/UOIc, PEUa, POUa/POUc, FG2a/FG2c, and GOUa/GOUc.


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z Besides, the BSC6900 has the power subsystem and environment monitoring subsystem.


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z The switching subsystem consists of the SCU boards, high-speed backplane channels in each subrack, straight-through cables between SCU boards.


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z Star topology

One node functions as the center node and it is connected to each of the other

nodes. The communication between the other nodes must be switched by the center

node.

z Chain topology

There is a connection between every two adjacent nodes. If an intermediate node is

out of service, the communications between the other nodes are affected. The

bandwidth utilization in this topology is high.


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z The Gigabit Ethernet (GE) switching subsystem performs GE switching of signaling and OM information. The SCU performs OM of the subrack where it is located and performs GE

switching for other boards in the subrack.

z The MAC switching logical modules switch the IP traffic data, OM signals, and signaling. The switching is performed by the SCU boards and the Ethernet cables between the SCU boards.

z Interconnections between the MPS and the EPSs

The MPS functions as the main subrack, and a maximum of five EPSs function as

extension subracks. The star interconnections between the MPS and the EPSs are

established through the Ethernet cables between the SCU boards.


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z The MAC switching logical module switches the ATM-based or IP-based traffic data, OM signals, and signaling. The switching is performed by the SCU boards and the straight-through cables between the SCU boards. The MPS serves as the main subrack, and a maximum of five EPSs serve as extension subracks. The star interconnections between the MPS and the EPSs are established through the straight-through cables between the SCU boards.

z Each subrack can be configured with two SCU boards. The SCU boards work in full-interconnection and dual-plane mode and enable connection of subracks.

z Port trunking enables multiple physical ports to be grouped into one logical port This technology helps z Port trunking enables multiple physical ports to be grouped into one logical port. This technology helps enhance reliability of data transmission.

z Port trunking works in trunk groups. Multiple physical links form a trunk group. If a physical link in the trunk group becomes unavailable, the data carried on the faulty link is transmitted on other links in the trunk group. Therefore, the link failure does not disrupt proper communication between both ends of the trunk group.

z The traffic on the trunk group can reach a maximum of the total traffic on all the physical links in the trunk group. Port trunking helps enhance transmission reliability and increase transmission bandwidth.

z Port trunking is supported by the GE port on the SCU board.

z Port trunking is supported by the switching subsystem of an RNC.

z The bandwidth of a trunk group is allocated to each GE port so that load is balanced among GE ports.

z If a GE port in a trunk group is faulty, the links on the GE port are switched over automatically.

z If the SCU board or a service processing board is faulty, the links cannot be switched over.z If the SCU board or a service processing board is faulty, the links cannot be switched over.


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z The SCUa board provides maintenance management and GE switching for the subrack where it is located. It is used to implement MAC switching and provide interconnections between all

modules in a BSC6900.

Port Identification

Function Port Type

10/100/1000BASE 10M/100M/1000M Eth t t d f i t b k10/100/1000BASE-T0 to 11

10M/100M/1000M Ethernet ports used for inter-subrack connection RJ45

COM Serial port for commissioning RJ45

CLKIN Receiving the 8 kHz and the 1PPS timing signals from the GCUa/GCGa RJ45

TESTOUT Output port for clock signals. The clock signals are used for testing SMB male for testing.


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z Remarks:

Panel: Four 10G Ethernet cables and six GE cables are used for inter-subrack

connections, and two GE cables are used for connection with the an external BAM.

Inter-subrack connection: 10M/100M/1000M self-adaptation is used for GE ports.

Supporting a short period when the SCUa and SCUb boards are configured in the

same subrack: Switchover of the SCUb boards does not affect services.

z Inter-subrack connections

Ports 0 to 7 are GE ports, among which two neighboring ports form a trunk group,

same as the SCUa board.

Ports 8 to 11 are 10G Ethernet ports. Ports 8 and 9 form a trunk group. Ports 10 and

11 are two independent trunk groups.Port Identification Function Port Typeyp

10/100/1000BASE-T0 to 10/100/1000BASE-T9

10M/100M/1000M Ethernet ports used for inter-subrack connection

RJ45

10G-T8 to 10G-T811 10 Gbit/s Ethernet ports, used for the inter-subrackconnection. These ports can use SFP+ High-Speed cable transmission.

SFP+

COM Serial port for commissioning RJ45

CLKIN Receiving the 8 kHz and the 1PPS timing signals from the GCUa/GCGa

RJ45

TESTOUT Output port for clock signals. The clock signals are used for testing.

SMB male


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z Straight-through cables are used to connect the SCUa boards in different subracks.


BSC6900 V900R014 Product Description P-33


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z Service processing subsystems can be increased as required, according to the linear superposition principle. Thus, the service processing capability of the BSC6900 is improved.

z Service processing subsystems communicate with each other through the switching subsystem to form a resource pool and perform tasks cooperatively.

z The service processing subsystem mainly consists of four logical modules: RNC control plane (CP), RNC user plane (UP).


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z The service processing subsystem consists of the SPU and DPU boards. The SPU boards perform signaling processing. The DPU boards perform service processing.

z The SPU subsystem, which serves as a control plane (CP) processor, forms the CP resource pool. The DSP, which serves as a user plane (UP) processor, forms the UP resource pool. The

CP and UP resource pools work cooperatively through the switching subsystem.

z The SPU boards are classified into SPUa and SPUb.

The SPUa and SPUb boards are used to process GSM and UMTS signaling messages.

The preceding figure is based on the SPUb.

z The DPU boards are classified into the following types:

DPUb and DPUe used for voice service processing of UMTS CS domain and data

service processing of UMTS PS domain

DPUa, DPUc, DPUd,DPUf,DPUg are all used for GSM data processing


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z The main control SPUa board has four logic subsystems.

z The SPUa board has the same functions as the SPUb board.

z The processing capabilities of the main control SPUa board are as follows:

The SPUa board supports 100 NodeBs, 300 cells, and 67500 BHCAs when serving as

the UMTS signaling processing board.

z The processing capabilities of the non-main control SPUa board are as follows:

The SPUa board supports 100 NodeBs, 300 cells, and 90,000 BHCAs when serving as

the UMTS signaling processing board.


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z The processing capabilities of the main control SPUb board are as follows:

The SPUb board supports 180 NodeBs, 600 cells, and 114000 Busy Hour Call Attempt

(BHCA).

Loaded with different software, the SPUb board is functionally classified into the main

control SPUb board (MPU) and non-main control SPUb board. The main control SPUb

board is used to manage the UMTS user plane resources, control plane resources, and

transmission resources in the system and process the UMTS services on the control plane transmission resources in the system and process the UMTS services on the control plane.

The non-main control SPUb board is used to process the UMTS services on the control

plane.

z The main control SPUb board has eight logic subsystems. Subsystem 0 of the main control SPUb board is the Main Processing Unit (MPU). It is used to manage the user plane resources, control

plane resources, and transmission resources of the system. It performs the following functions:

plane within the subrack; exchanges the load information on the control planes between

subracksManages the user plane resources; manages the load sharing of the user plane

resources between subracks.

Maintains the load of the control .

Provides functions such as the logical main control function of the BSC6900, the IMSI-

RNTI maintenance and query, and the IMSI-CNid maintenance and query.q y, q y

Forwarding the RRC connection request message to implement the sharing of user plane

resources and sharing of control plane resources in the BSC6900 .


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z Subsystems 1 to 7 of the main control SPUb board belong to the CPU for Service (CPUS), which is used to process the services on the control plane. The subsystems perform the

following functions:

Processes upper-layer signaling over the Uu, Iu, Iur, and Iub interfaces .

Processes transport layer signaling.

Allocates and manages the various resources that are necessary for service setup, and

establishes signaling and service connections.

Processes RFN signaling .

z The processing capabilities of the non-main control SPUb board are as follows:

The SPUb board supports 180 NodeBs, 600 cells, and 130,000 BHCAs when serving as the UMTS signaling processing board.

z The non-main control SPUb board has eight logic subsystems. The eight subsystems of the non-main control SPUb board belong to the CPUS, which is used to process the services on g pthe control plane. The subsystems performs the following functions:

Processes upper-layer signaling over the Uu, Iu, Iur, and Iub interfaces .

Processes transport layer signaling.

Allocates and manages the various resources that are necessary for service setup, and establishes signaling and service connections.

P RFN i li Processes RFN signaling .

z All ports on the SPUb board are reserved.


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z The processing capabilities of the board are as follows:

Supporting the UL+DL data stream at 115 Mbit/s.

Supporting 1,800 Erlang for CS speech service.

Supporting 900 Erlang for CS data service .

Supporting 150 cells.

z The DPUb board performs the following functions:

Multiplexes and demultiplexes.

Processes frame protocols.

Selects and distributes data .

Performs the functions of the GTP-U, IUUP, PDCP, RLC, MAC, and FP protocols .

Performs encryption, decryption, and paging.

P i l i i l b h SPU b d d h DPUb Processes internal communication protocols between the SPUa board and the DPUb board .

Processes the Multimedia Broadcast and Multicast Service (MBMS) at the RLC layer and the MAC layer.

z Multiplexes and demultiplexes

In the uplink, the DPUb board receives data from the NodeBs, demultiplexes the data, and sends it to the corresponding processing units. In the downlink, the DPUb board receives signaling, CS data, and PS data, multiplexes it, and then sends it to the NodeBs.


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z The processing capabilities of the DPUe board are as follows:

Supporting the UL+DL data stream at 335 Mbit/s; or supporting the UL+DL data

stream at 800 Mbit/s if the capacity license is configured.

Supporting 3,350 Erlang for CS speech service.

Supporting 1,675 Erlang for CS data service .

Supporting 300 cells.

z The DPUe board performs the following functions:

Selects and distributes data.

Multiplexes and demultiplexes.

Processes frame protocols.

Performs the functions of the GTP-U, IUUP, PDCP, RLC, MAC, and FP protocols .e o s t e u ct o s o t e G U, UU , C , C, C, a d p otoco s

Performs encryption, decryption, and paging.

Processes the Multimedia Broadcast and Multicast Service (MBMS) at the RLC layer

and the MAC layer.


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z The BSC6900 can use the Building Integrated Timing Supply System (BITS), Global Positioning System (GPS), LINE, and 8 kHz clocks.

z The internal clock processing process of an RNC is as follows:

The clock module in the GCUa/GCGa board receives clock signals.

Through the clock output port on the GCUa/GCGa board, the clock module sends the

8 kHz clock signals to the SCUa boards in the MPS and each EPS.

System clock signals of 19.44 MHz, 32.768 MHz, and 8 kHz are generated in the MPS

and each EPS and sent to other boards in each subrack.

The AEUa and PEUa boards obtain the 32.768 MHz clock signals.

The AOUa and POUc boards obtain the 19.44 MHz clock signals.

The UOIc board obtains the 8 kHz clock signals.

The FG2c and GOUc boards do not use the clock signals from the clock

module in the GCUa/GCGa board.

The Iub interface board forwards clock signals to NodeBs.

z If the line clock is obtained from the CN through an interface board in an EPS, the clock signals can be sent out through the 2 MHz clock output port on the interface board to the

b d b i l k i l blGCUa/GCGa board by using a clock signal cable.


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z Supports active/standby switchover. The standby GCUa/GCGa board traces the clock phase of the active GCUa/GCGa board. This ensures the smooth output of the clock phase in the case

of active/standby switchover.

z Receives and processes the clock signals and the positioning information from the GPS card.

Port Identifier Function Connector Type

ANT Reserved SMA male

CLKOUT0 to CLKOUT9

Ports for providing synchronization clock signals. The ten ports are used to provide 8 kHz clock signals and 1PPS clock signals for the CLKIN port on the SCUa board.

RJ45

d dCOM0 and COM1 Reserved RJ45

TESTOUT Reserved SMB male

TESTIN Output port for clock signals. The clock signals are used for testing. SMB male

CLKIN0 and CLKIN1

Input ports for 2.048 MHz synchronization clock signals and 2.048 Mbit/s flow signals SMB male CLKIN1 signals and 2.048 Mbit/s flow signals


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z The active/standby GCUa/GCGa board and the active/standby SCUa board are connected through a Y-shaped clock cable.


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z The interface processing subsystem processes transport network messages. It also hides the differences between transport network messages within the BSC6900.

z On the uplink, the interface processing subsystem terminates transport network messages at the interface boards. It also transmits the user plane, control plane, and management plane

datagrams to the corresponding service processing boards. The processing of the signal flow

on the downlink is the reverse of the processing of the signal flow on the uplink.

Interface board Iub Iu_CS Iu_PS Iur Iu_BC

AEUa Y

AOUa Y

AOUc Y Y Y Y

UOIa_ATM/IP Y Y Y Y Y

UOIc_ATM Y Y Y Y

PEUa Y

FG2a Y Y Y Y Y

FG2c Y Y Y Y

POUa Y

POUc Y YPOUc Y Y

GOUa Y Y Y Y Y

GOUc Y Y Y Y


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Item Specification

Iub

NumberofNodeBs 300

SpeechserviceintheCSdomain 6,000Erlang

DataserviceintheCSdomain 6,000Erlang

( ) /Iub Maximumpayloadthroughput(UL) 840Mbit/s

Maximumpayloadthroughput(DL) 840Mbit/s

Maximumpayloadthroughput(UL+DL) 840Mbit/s

IuCSSpeechserviceintheCSdomain 6,000Erlang


IuPS

Maximumpayloadthroughput(UL) 840Mbit/s




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Item SpecificationwiththeSCUaboardConfiguredSpecificationwiththeSCUb

boardConfigured

Iub

NumberofNodeBs 500 500

SpeechserviceintheCSdomain 18,000Erlang 18,000Erlang

DataserviceintheCSdomain 18,000Erlang 18,000Erlang

Maximumpayloadthroughput(UL) 1,300Mbit/s 2,600Mbit/s

Maximumpayloadthroughput(DL) 1,300Mbit/s 2,600Mbit/s

Maximumpayloadthroughput(UL+DL) 2,600Mbit/s 2,600Mbit/s

IuCSSpeechserviceintheCSdomain 18,000Erlang 18,000Erlang


IuPS





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Item Specification

NumberofNodeBs 32

Iub


DataserviceintheCSdomain 850Erlang





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z Supports Multi-Link PPP. In E1 transmission mode, the POUc provides 42 MLPPP groups; in T1 transmission mode, the POUc provides 64 MLPPP groups.

Item Specification

NumberofNodeBs 126

Iub







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z The service processing capability of the POUc board described in this slide is based on the POUc board that is used as a service processing board of UMTS.

Item Specification

NumberofNodeBs 252

h h d l

Iub







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Item SpecificationItem Specification

Iub

NumberofNodeBs 300



M i l d h h (UL) 840 Mbi /Maximumpayloadthroughput(UL) 840Mbit/s



Iu CSSpeechserviceintheCSdomain 6,000Erlang

IuCSDataserviceintheCSdomain 3,000Erlang

IuPS



Maximumpayloadthroughput(UL+DL) 840Mbit/sp y g p ( ) /


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Item SpecificationwiththeSCUaboardConfiguredSpecificationwiththeSCUb

boardConfigured

NumberofNodeBs 500 500


DataserviceintheCS 18 000 Erlang 18 000 ErlangIub

domain 18,000Erlang 18,000Erlang




Speech service in the CS

IuCS



IuPS





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Item Specification

NumberofNodeBs 32


Iub

DataserviceintheCSdomain 680Erlang


Maximum payload throughput (DL) 45 Mbit/sMaximumpayloadthroughput(DL) 45Mbit/s



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z OC-3--channelized port supporting the SONETz OC-3c--unchannelized port supporting the SONET

Item Specification

NumberofNodeBs 126

Iub




l d h h ( ) b /Maximumpayloadthroughput(DL) 195Mbit/s



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Item Specification

NumberofNodeBs 500


DataserviceintheCSdomain 5,500ErlangIub






IuPS





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z Processing capabilities of the UOIa board in ATM mode

Item Specification

NumberofNodeBs 300


DataserviceintheCSdomain 3,000ErlangIub Maximumpayloadthroughput(UL) 225Mbit/s



Iu CSSpeechserviceintheCSdomain 9,000Erlang

IuCSDataserviceintheCSdomain 3,000Erlang

IuPS





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z Processing capabilities of the UOIa board in IP mode

Item Specification

NumberofUDP(UserDatagramProtocol)ports 23,000

Sessionsetup/releasetimes 500/s

Iub

NumberofNodeBs 300









IuPS Maximumpayloadthroughput(DL) 250Mbit/s



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Item Specification

NumberofNodeBs 500


DataserviceintheCSdomain 9,000ErlangIub

, g





Iu CSDataserviceintheCSdomain 9,000Erlang

IuPS



Maximumpayloadthroughput(UL+DL) 1,800Mbit/s


P-58

z The OMUa board is the Back Administration Module (BAM) of the RNC. The OMUa boards are connected to external devices through Ethernet cables. The OMUa board serves as a bridge

between Front Administration Module (FAM) and OSS system. Based on the OMUa board, the

OM network of the RNC is divided into the following networks:

Internal network: serves the communication between the OMUa and the RNC host.

External network: serves the communication between the OMUa board and the OSS

d i h devices, such as LMT or M2000.

z The SCUa board performs OM on other boards in the same subrack through the backplane channels.

z The O&M subsystem provides powerful OM functions, including security management, log management, configuration management, performance management, alarm management,

message tracing loading management and upgrade management For detailed information message tracing, loading management, and upgrade management. For detailed information,

please refer to the RNC Routine Operation and Maintenance slide.


P-59

z The dual OM plane design is implemented by the hardware that works in active/standby mode. When an active component is faulty but the standby component works properly, a

switchover is automatically performed between the active and standby components, to

ensure that the OM channel works properly.

z The active/standby OMUa boards use the same external virtual IP address to communicate with the LMT or M2000 and use the same internal virtual IP address to communicate with the

SCUa board SCUa board.

z When the active OMUa board is faulty, an active/standby switchover is performed automatically, and the standby OMUa board takes over the OM task. In this case, the internal

and external virtual IP addresses remain unchanged. Therefore, proper communication

between the internal and external networks of the BSC6900 is ensured.

z When a single fault occurs on the switching network, the active/standby SCUa boards in each g g ysubrack are switched over automatically to ensure that the OM channel works properly.


P-60

z OMUa refers to Operation and Maintenance

(1) Captive screw (2) Ejector lever (3) Self-locking latch (4) RUN indicator

(5) ALM indicator (6) ACT indicator (7) RESET indicator(8) SHUTDOWN indicator

(9) USB port(10) ETH0 Ethernet port

(11) ETH1 Ethernet port

(12) ETH2 Ethernet port

(13) COM serial port

(14) VGA port (15) HD indicator (16) OFFLINE indicator

(17) Hard disk(18) Screws for fixing the hard disk

z OMUa portsPort Identifier Function Connector Type

USB0-1 and USB2-3USB ports. These ports are used to connect USB devices.

ETH0 to ETH2 GE ports RJ45

Serial port This port is used for COM0-ALM/COM1-BMC

Serial port. This port is used for system commissioning or for common serial port usage.

DB9

VGA Monitor port


P-61

z (1) Captive screw(2) Ejector lever(3) Self-locking latch(4) RUN LED(5) ALM LED(6) ACT LED(7) POWER Button(8) HDD LED(9) OFL LED(10) COM port(11) ETH0 Ethernet port(12) ETH1

Ethernet port(13) VGA port(14) USB port(15) ETH2 Ethernet port


P-62

z Board redundancy = active and standby working mode

z MSP: Multiplex Section Protectionz The system uses the multi-level cascaded and distributed cluster control mode. Several CPUs

form a cluster processing system. Each module has distinct functions. The communication

channels between modules are based on the backup design or anti-suspension/breakdown

design.

z The system uses the redundancy design to support hot swap of boards and backup of important modules. Therefore, the system has a strong error tolerance capability.


P-63

z Switching Subsystem

The switching subsystem performs switching of traffic data, signaling, and OM

signals of BSC6900.

z Service Processing Subsystem

The BSC6900 service processing subsystem performs the control functions defined in

the 3GPP protocols and processes services of the BSC6900.

z Interface Processing Subsystem

The interface processing subsystem provides transmission ports and resources,

processes transport network messages, and enables interaction between the BSC6900

internal data and external data.

z Clock Synchronization Subsystem

The clock synchronization subsystem provides clock signals for the BSC6900,

generates the RNC Frame Number (RFN), and provides reference clock signals for base

stations.

z OM Subsystem

The OM subsystem enables the management and maintenance of the BSC6900 in the

following scenarios: routine maintenance emergency maintenance upgrade and following scenarios: routine maintenance, emergency maintenance, upgrade, and

capacity expansion.


P-64

Boards Logical Function Interface Supported Shared byg Supported y

AEUa ATM Iub Iub, Iur, and IuAOUa ATM Iub Iub, Iur, and IuAOUc ATM Iub Iub and IuDPUb UUP (UMTS RNC user plane processing) - -DPUe UUP (UMTS RNC user plane processing) - -FG2a IP Iu, Iur, and Iub Iub and IuFG2c IP Iu, Iur, and Iub Iub and IuGCUa Clock - -GCGa Clock with GPS - -GOUa IP Iu, Iur, and Iub Iub and IuGOUc IP Iu, Iur, and Iub Iub and IuOMUa OAM (OM management) - -OMUc OAM (OM management) - -PEUa IP Iub Iub and IuPOUa IP Iub Iub and IuPOUc IP Iub Iub and IuPOUc IP Iub Iub and IuSCUa MAC Switching - -SCUb MAC Switching - -

SPUaUCP (UMTS RNC control plane processing)

- -RUCP (Resource management and UMTS RNC control plane processing)

SPUbUCP (UMTS RNC control plane processing)


SPUb - -RUCP (Resource management and UMTS RNC control plane processing)

UOIa ATM Iu, Iur, and Iub Iub, Iur, and IuUOIc ATM Iu, Iur, and Iub Iub and Iu

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P-68

z The 75-ohm coaxial cable is a type of trunk cable. It is optional. The number of 75-ohm coaxial cables to be installed depends on the site requirements. This cable connects the

active/standby AEUa/PEUa board to the Digital Distribution Frame (DDF) or other NEs and

transmits E1 trunk signals.

z The 75-ohm coaxial cable used in the BSC6900 has 2 x 8 cores. That is, the 75-ohm coaxial cable is composed of two cables, each of which contains eight micro coaxial cables. All of the

16 micro coaxial cables form eight E1 RX/TX links16 micro coaxial cables form eight E1 RX/TX links.

z The 75-ohm coaxial cable has DB44 connectors only at one end. You need to add a connector to the other end according to the actual requirements.

z The 120-ohm twisted pair cable is a type of E1/T1 cable. It is optional. The number of 120-ohm twisted pair cables to be installed depends on the site requirements. This cable connects

the active/standby AEUa/PEUa board to the DDF or other NEs and transmits E1/T1 signals.y g

z The 120-ohm twisted pair cable has two DB44 connectors only at one end. You need to add a connector to the other end according to the actual requirements.


P-69

z The 75-ohm coaxial cable has two DB44 connectors only at one end. You need to add a connector to the other end according to the actual requirements.


P-70

z The 120-ohm twisted pair cable has two DB44 connectors only at one end. You need to add a connector to the other end according to the actual requirements.


P-71

z The straight-through cable is of two types: the shielded straight-through cable and the unshielded straight-through cable.

z The unshielded straight-through cable is used to connect SCUa boards in different subracks.

z The shielded straight-through cable is used to connect the FG2a/OMUa/FG2c board to other devices. The number of straight-through cables to be installed depends on the site

requirements.

z When a straight-through cable is used to connect SCUa boards in different subracks, the RJ45 connectors at the two ends of the cable are connected to the SCUa boards that are located in

different subracks.

z When the straight-through cable is used to connect the OMUa board to other equipment, the RJ45 connector at one end of the cable is connected to the ETH0 or the ETH1 port on the

OMUa board and the RJ45 connector at the other end of the cable is connected to the OMUa board, and the RJ45 connector at the other end of the cable is connected to the

Ethernet port of other equipment.

z When the straight-through cable is used to connect the FG2a/FG2c board to other equipment, the RJ45 connector at one end of the cable is connected to the Ethernet port on the

FG2a/FG2c board, and the RJ45 connector at the other end of the cable is connected to the

Ethernet port of other equipment.



z The two connectors at the two ends of the SFP+ high-speed cable are connected to the 10G Ethernet ports on the SCUb boards that are located in different subracks.


P-73

z The optical cable has an LC/PC connector at one end connected to the optical interface board in the BSC6900. The other end of the optical cable can use an LC/PC connector, SC/PC

connector, or FC/PC connector as required.

z LC/PC-LC/PC single-mode/multi-mode optical fibers can be used to connect an optical interface board to another optical interface board as well as to the ODF or other NEs.

z In practice, two optical cables form a pair. Temporary labels are attached to both ends of h bl i h i f d f h bl i d h h h d each cable in the pair. If one end of the cable is connected to the TX port, the other end

should be connected to the RX port.


P-74

z The Y-shaped clock cable is a type of clock signal cables. It is optional. The number of Y-shaped clock cables to be installed depends on the site requirements. The Y-shaped clock

cable transmits 8 kHz clock signals from the GCUa/GCGa board in the MPS to the SCUa

boards in the EPSs.

z The RJ45 connector at one end of the Y-shaped clock cable is connected to the SCUa boards in the EPSs. The two RJ45 connectors at the other end of the cable are connected to the

active and standby GCUa/GCGa boards in the MPS active and standby GCUa/GCGa boards in the MPS.


P-75

z The monitoring signal cable for the power distribution box transmits monitoring signals from the power distribution box to each service processing subrack through the independent fan

subrack. The DB15 connector at one end of the monitoring signal cable for the power

distribution box is connected to the corresponding port on the power distribution box. The

DB9 connector at the other end of the cable is connected to the MONITOR 1 port on the

independent fan subrack.


P-78


P-79

z The process on the uplink is as follows:

The RRC messages from the UE are processed at the physical layer of the NodeB and

then are sent to the Iub interface board of the BSC6900 over the Iub interface.

The Iub interface board processes the messages and then sends them to the DPUb

board. See signal flow 1.

If the SPUa board that processes the RRC messages and the Iub interface board that

receives the RRC messages are located in different subracks, the messages travel to

the MPS for switching. The MPS then sends the messages to the appropriate DPUb

board. See signal flow 2.

The DPU board performs FP, MDC, MAC, and RLC processing on the messages and

then sends the messages to an appropriate SPUa board where the messages are

terminatedterminated.

z The downlink flow is the reverse of the uplink flow.


P-80


The RRC messages from the UE are processed at the physical layer of the NodeB and

then are sent to the Iub interface board of the BSC6900-1 over the Iub interface.

The Iub interface board and the DPUb board of BSC6900-1 process the messages and

then send them to the Iur interface board of BSC6900-1. (Note: The RRC message for

an inter-BSC6900 cell update needs to be sent to the SPUa board of BSC6900-1

b f i i h i f b d f )before it is sent to the Iur interface board of BSC6900-1.)

The Iur interface board of BSC6900-1 processes the RRC messages and then sends

them to the Iur interface board of BSC6900-2 over the Iur interface between

BSC6900-1 and BSC6900-2.

The Iur interface board of BSC6900-2 processes the messages and then sends them to

the DPUb board the DPUb board.

The DPU board performs FP, MDC, MAC, and RLC processing on the messages and

then sends the messages to an appropriate SPUa board where the messages are

terminated.



P-81


The NodeB transmits the control-plane messages to the Iub interface board of the

BSC6900 over the Iub interface.

The Iub interface board processes the messages and then sends them to the SPUa

board where the messages are terminated. See signal flow 1.

If the SPUa board that processes the messages and the Iub interface board that

receives the messages are located in different subracks, the messages travel to the

MPS for switching. The MPS then sends the messages to the appropriate SPUa board.

See signal flow 2.



P-82

z The process on the downlink is as follows:

The control-plane messages from the MSC, SGSN, or another BSC6900 travel to the

Iu/Iur interface board of the BSC6900 over the Iu/Iur interface.

The Iu/Iur interface board processes the messages and then sends them to the SPUa

board in the same subrack for processing. signal flow 1.

If the SPUa board in the same subrack as the Iu/Iur interface board cannot process the

messages, the Iu/Iur interface board sends the messages to the SPUa board in another

subrack for processing after the switching in the MPS. See signal flow 2.

z The uplink flow is the reverse of the downlink flow.


P-83


The NodeB processes the data and sends it to the Iub interface board of BSC6900

over the Iub interface.

The Iub interface board processes the data and sends it to an appropriate DPUb

board. See data flow 1.

If the DPUb board that processes the messages and the Iub interface board that

receives the messages are located in different subracks, the messages travel to the

MPS for switching. The MPS then sends the messages to the appropriate DPUb board.

See signal flow 2.

The DPUb board performs the FP, MDC, MAC, RLC, and Iu UP or PDCP/GTP-U

processing on the data, separates the CS/PS user-plane data from other data, and

then sends the data to the Iu-CS/Iu-PS interface board then sends the data to the Iu CS/Iu PS interface board.

The Iu-CS/Iu-PS interface board processes the data and then sends it to the

MSC/SGSN.



P-84


The NodeB processes the data and sends it to the Iub interface board of BSC6900-1

over the Iub interface. The Iub interface board and the DPUb board of BSC6900-1

process the data and then send them to the Iur interface board of BSC6900-1.(Note:

The DPUb of BSC6900 only performs FP and MDC processing on the data. The Iur interface board of BSC6900-1 processes the data and then sends them to the

i f b d f h i f b d Iur interface board of BSC6900-2 over the Iur interface between BSC6900-1 and

BSC6900-2.

The Iur interface board of BSC6900-2 processes the data and then sends the data to

the DPUb board.

The DPUb board processes the data, separates the CS/PS user-plane data from other

data and then sends the CS/PS user-plane data to the Iu-CS/Iu-PS interface board data, and then sends the CS/PS user plane data to the Iu CS/Iu PS interface board.

The Iu-CS/Iu-PS interface board processes the data and then sends it to the

MSC/SGSN.



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P-88

z The traffic is calculated on the basis of Huawei traffic model. The N/A in the table indicates that the data is not available at present.

z You can calculate the capacity specifications in any typical subrack combination mode by using the preceding data.

z BSC6900 Maximum Configuration

zBSC6900 Minimum Configuration

EPS

EPS

EPS

EPS

MPR

MPS

EPR

EPSMPS

MPR


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BSC6900 V900R014 Product Description P-92

Huawei Proprietary and ConfidentialConfidential Information of Huawei. No Spreading Without Permission


z This configuration is only an example.

z When the AOUc and UOIc boards are used, the specifications that are expected by R14cannot be reached. In the typical configuration, each subrack is configured with four DPUe

boards (total throughput: 3.2 Gbit/s), four UOIc boards as Iu interface boards (with 32 STM-1

ports in all and supporting total throughput of 3.6 Gbit/s), and eight AOUc boards as Iub

interface boards (with 32 STM-1 ports and supporting total throughput of 4.8 Gbit/s). The

preceding configurations of DPUe UOIc and AOUc boards match each other and the preceding configurations of DPUe, UOIc, and AOUc boards match each other, and the

remaining slots are occupied by SPUb boards, which process control-plane signaling.




z When UOIc boards are used, the specifications that are expected by R14 cannot be reached. In this typical configuration, each subrack is fully configured with five pairs of SPUb boards.

Each subrack is configured with four DPUe boards and eight UOIc boards, four UOIc boards

serving as the Iu interface boards and four UOIc boards serving as the Iub interface boards.

The preceding configurations of SPUb, DPUe, and UOIc boards match each other. If more

DPUe boards are configured the control plane signaling capability of the SPUb boards DPUe boards are configured, the control-plane signaling capability of the SPUb boards

becomes insufficient. The number of SPUb boards, however, cannot be increased.




z When the GOUc boards are used, a small number of interface boards are required. Therefore, each subrack can be fully configured with a maximum of five DPUe boards and five pairs of

SPUb boards.


Date post:	08-Nov-2015
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Owc003700 Bsc6900 Wcdma v900r014 Product Description Issue 1.01

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