1 BSC RNC 6900 Hardware Structure and System Description 1

Security Level: Internal Use

www.huawei.com

2014

BSC /RNC6900

Hardware Structure

and System

Description

HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 2

The BSC /RNC6900 is an important

network element of Huawei Single RAN

solution. It adopts the industry-leading

multiple radio access technologies, IP

transmission mode, and modular design.

The BSC /RNC6900 can be flexibly

configured as a BSC /RNC6900 GSM,

BSC /RNC6900 UMTS, or BSC /RNC6900

GU as required in different networks.


Know the functions and features of BSC /RNC6900

Master the hardware structure of BSC /RNC6900

Master the signal flow

Master the typical configuration of BSC /RNC6900


Reference

BSC /RNC6900 Technical Description

BSC /RNC6900 Hardware Description


Chapter 1 BSC /RNC6900 System Description

Chapter 2 BSC /RNC6900 Hardware Structure

Chapter 3 BSC /RNC6900 Signal Flow

Chapter 4 BSC /RNC6900 Typical Configuration

HUAWEI TECHNOLOGIES CO., LTD. All rights reserved

Page 6


Location

The interfaces between the BSC /RNC6900 GSM and

each NE in the UMTS network are as follows:

Iub Interface: the interface between the NodeB and RNC.

Iur Interface: the interface between the RNC and RNC.

Iu-CS Interface: the interface between the MSC and MGW.

Iu-PS Interface: the interface between the RNC and SGSN

Iu-BC Interface: the interface between the RNC and CBC

The interfaces between the BSC /RNC6900 GSM and

each NE in the GSM network are as follows:

Abis Interface: the interface between the BTS and BSC

A Interface: the interface between the BSC and MSC or MGW

Gb Interface: the Interface between the BSC and SGSN


BSC /RNC6900V9R11C00

BSC6000/BSC6810

Unitary logic

Frame

Unitary OM SMP

Configuration

Maintenance

Alarm

Performance

OS

Internal

Communication

Unitary

Resource

Management

Co-Transmission

Unitary Control

Plane

GBSC Control

Plane Optimize

XPUb

DPUe

POUc

FG2c

GOUc

UOIc

AOUc

Frame Unitary

Multi-kernel

Boards

Transmission

and Resource

Management

Unitary

Pool resource

BSC /RNC6900 New

Features


Smooth evolution from BSC to RNC with software upgrade

Reducing CAPEX by reusing hardware

Dynamic capacity adjustment between 2G&3G

Software

upgrade

BSC /RNC6900 Product Charactersmulti-mode amalgamation

BSC

BSC

RNC

RNC

RNC

BSC

GSM&UMTS cabinet GSM&UMTS co-cabinet

RNC

RNC

BSC


Centralized OMC for GSM&UMTS, unified platform for network construction, 2G/3G network

planning, performance evaluation and trouble shooting etc.

Simplifying the network architecture, reducing co-ordination and maintenance effort, man

power and OPEX Saving

PM Management

Configuration Management

Network Optimization

Fault Management

Unified OAM toolkits: Easier 2G/3G trouble shooting

Unified GENEX : Unified 2G/3G network planning,

performance evaluation and performance trouble shooting

Unified CME : Simultaneous 2G/3G data configuration,

correctness and efficiency guaranteed

BSC /RNC6900 Product CharactersCo OAM


pT

RA

U

pT

RA

U

IP UNI-BTS

UNI-BTS UNI-BSC Co-transmission

UDP

IP

/

PPP

IP SW

Router

FP

FP

FP

3G

2G

3G

2G

pT

RA

U

pT

RA

U

FP

FP

FP

UDP

IP

/

PPP

IP SW

Router

pTRAU

Inte

rfac

e b

oa

rd

5-10% Gain

0.2 0.1 0.05 0.03 0.02 0.01 0.005 0.002 0.001

GOS

Tra

ffic

Ga

in (

%)

10

9

8

7

6

5

4

3

2

1

0 With unified transport resource management,

bandwidth can be shared by UMTS&GSM.

Without Co-trans Co-trans

UMTS / GSM UMTS + GSM Traffic rejection

Multiplexi

ng

Gain

BSC /RNC6900 Product CharactersCo TRM


UMTS

GSM

Cs service PS service

Service direction on UMTS/GSM

Heavy

Load

Heavy

Load

Heavy

Load

Heavy

Load

UMTS

GSM

Load control between UMTS/GSM

Load control by

inter-RAT HO

3G/2G cell load consideration make traffic

load spread in UMTS&GSM evenly, network

usage efficiency improved

3G/2G cell load consideration make it more

accurate for the service direction, better

performance achieved

Huawei Lab Simulation

BSC /RNC6900 Product CharactersCo RRM


SW upgrade with Legacy

HW + New HW (optional)


HW + New HW (expansion)

BSC6000 BSC6810 and BSC

/RNC6900 Evolution Paths

2009 2008 2006 2010Q1 2008Q3

GBSS8.1/RAN10 GBSS9.0/RAN11 GBSS12.0/RAN12

BSC6000

SW upgrade with

Legacy HW +

New HW

(optional)

BSC6810

BSC

/RNC6900 BSC Only

2009Q2

BSC

/RNC6900 RNC Only

2009Q1

BSC

/RNC6900 Dual mode

Note : Legacy HW is HW available from GBSS8.1/RAN10.0 for BSC /RNC6900

BSC

/RNC6900 BSC Only

BSC

/RNC6900 RNC Only

BSC

/RNC6900 Dual mode

BSC6810

Naming changing to BSC

/RNC6900


HW + New HW (expansion)


HW + New HW (optional)

SW upgrade

Naming changing to BSC

/RNC6900


BSC /RNC6900 Capacity Index

BSC /RNC6900 GSM only

Item 1MPS+1TCS 1MPS+1EPS+2TCS 1MPS+2EPS+2TCS

Number of

cabinets

2 2 2

BHCA(K) 1750 3500 5250

Traffic volume

Erl

6500 13000 19500

Number of TRXs 1024 2048 3072

Number of active

PDCHsMCS-9

4096 8192 12288

Typical configuration specifications of the BSC /RNC6900

GSM(BM/TC separated and Abis over non-IP R11 board)


Chapter 1 BSC /RNC6900 System Description



Chapter 4 BSC /RNC6900 Typical Configuration



2.1 Frame and Subrack

2.2 Board Introduction

2.3 Cable Introduction


BSC900 Hardware--Cabinet

The BSC /RNC6900 uses the Huawei N68E-22 cabinet and the

Huawei N68-21-N cabinet.

The two models of cabinets have the same appearance.N68E-22 is

divided into a single-door cabinet or a double-door cabinet.

Item Specification

Height of the

available space

46U

Weight Empty cabinet100 kg

Cabinet in full

configuration300 kg

Input voltage

range

-40 V to -57 V


BSC900 Hardware--Cabinet

The BSC /RNC6900 GSM cabinet is

classified into main processing rack (MPR),

extended processing rack (EPR), and

transcoder rack (TCR).


BSC900 Hardware--Subrack

The BSC /RNC6900 GSM subrack has a standard width of 19 inches. The

height of each subrack is 12 U. The boards are installed on the front and

rear sides of the backplane, which is positioned in the center of the subrack.

A subrack provides 28 slots. The slots on the front of the subrack are

numbered from 0 to 13, and those on the rear are numbered from 14 to 27.


BSC900 Hardware--Subrack

1 Fan box 2 Mounting ear 3 Guide rail

4 Front cable

trough

5 Boards 6 Grounding

screw

7 DC power

input port

8 Port for the

monitoring signal

cable of the power

distribution box

9 Cover plate

of the DIP

switch

Front View Rear View

Classification of BSC /RNC6900 GSM subracks

Item Index

Height of the subrack 12U

Weight of the subrack Empty: 25kg;

Full configuration57kg

Consumption l MPS subrack: 1000W

l EPS subrack: 1000W

l TCS subrack:1000W


DIP Switch on the Subrack The DIP switch on the subrack has eight bits numbered in ascending

order from 1 to 8

If the bit is set to ON, it indicates 0. If the bit is set to OFF, it indicates 1.


DIP Switch on the Subrack

The function of the switch 6?

Subrack

number

Subrack code

1 2 3 4 5 6 7 8

Subrack 0 ON ON ON ON ON ON ON OFF

Subrack 1 OFF ON ON ON ON OFF ON OFF

Subrack 2 ON OFF ON ON ON OFF ON OFF

Subrack 3 OFF OFF ON ON ON ON ON OFF

Subrack 4 ON ON OFF ON ON OFF ON OFF

Subrack 5 OFF ON OFF ON ON ON ON OFF


BSC /RNC6900 Overall Structure The overall structure of the BSC /RNC6900

Switching Subsystem;

Service Processing Subsystem;

Clock Synchronization Subsystem;

Interface Synchronization Subsystem;

OM Subsystem.

GO-Mode


Switching Subsystem Functions

Provides intra-subrack Medium Access Control (MAC) switching

Provides intra-subrack Time Division Multiplexing (TDM) switching

Distributes clock signals to the service processing boards

Provides inter-subrack switching

Provides switching channels for traffic data

Provides OM channels

Hardware Involved

TDM switching TNUa board

MAC switching SCUa board


BoardTNUa

Port Function Matching

connector

TDM05 TDM high-speed serial port, used to connect

the TNUaS between subracks

DB14

GTNU

PARC

RUN

ALM

ACT

TNM5

TNM4

TNM0

TNM1

TNM2

TNM3

The TNUa is the TDM switching unit in the BSC /RNC6900.

The active and standby TNUa are inserted in slot 4 and slot 5.

The TNUa board performs the TDM switching function, which

is the TDM switching center of the system.

The TNUa has the following functions:

Providing 128 K 128 K TDM switching

Allocating TDM network resources, establishing, and releasing

radio links


BoardSCUa

Port Function Matching

EHT09 10M/100M/1000M Ethernet ports, used to connect subracks RJ45

EHT1011 10M/100M/1000M Ethernet ports, used to connect GBAM (Only the

main subrack is connected with the GBAM)

RJ45

COM Debugging port RJ45

CLKIN Clock source port, used to receive the 8 kHz clock signals from the

panel of the GGCU

RJ45

TESTOUT Clock test signal port, used to output clock test signals SMB connector

The SCUa is the switching control unit in the BSC

/RNC6900.

The active and standby SCUa are inserted in slot 6 and 7.

The SCUa board provides maintenance management of the

subrack and GE switching platform for the subrack.

The SCUa has the following functions:

Performing maintenance management of the subrack

Providing a GE platform for the subrack

Providing clock information for the other boards in the same

subrack except the GCUa

SCUa

PARC

RUN

ALM

ACT

COM

TESTOUT

CLKIN

ACTLINK

10/10

0/1000B

ASE-T

RESET

ACTLINK

8

9

0

1

2

3

4

5

6

7

11

10

ACTLINK


Service Processing Subsystem Functions

User data transfer

Radio channel ciphering and deciphering

System admission control

Data integrity protection

Mobility management

Cell broadcast service control

Data volume reporting

Radio access management

CS service processing

PS service processing

Radio resource management and control

System information and user message tracing


Service Processing Subsystem

Hardware Involved

XPUa/b board, SPUa/b board, DPUa/b/c/d/e board

Board Specification

XPU/SPU is the signaling processing unit

SPU board can process GSM/UMTS signaling panel, XPU board can process

GSM signaling panel

SPU board Works for BSC /RNC6900 GU mode

XPU board Works for BSC /RNC6900 GSM only mode

The postfix of a board contain 4 logic subsystem, and the postfix of b board

contain 8 logic subsystem

Services Process Unit DPUa/b/c/d/e


Board Introduction-XPU/SPU

Loaded with different software, the XPUa board is functionally

divided into main control XPUa board and non-main control

XPUa board.

XPUa

PARC

RUN

ALM

ACT

10/100

/100

0BAS

E-T

ACTLINK

0

1

2

3

The 0 subsystem of main control XPU/SPU

board is MPU, used to manage the user panel

and signaling plane resources within the

subrack and process the signaling.

The subsystem of non-main control XPU/SPU

board is CPU, used to process the signaling.

For GSM Only mode, one MPU for the system

is enough. If the system upgrade to GU mode,

one MPU should for one subrack.

Main control

XPUa

Non-Main

control XPUa


Board IntroductionDPUc

Function

DPUc process CS services and perform the voice coding and

decoding function. It works as subrack system pool mode.

Provides the speech format conversion and data forwarding

functions when configured in BM subrack.

Provides the Tandem Free Operation (TFO) function

Provides the voice enhancement function

Detects voice faults automatically

DPUd board works for GSM services.

DPUa

PARC

RUN

ALM

ACT


Board introductionDPUd

Function

The DPUd is the Data Processing Unit for PS services. It can be

installed in slots 811 in MPS and 8-27 in EPSit processes the

packet services for the BSC.

Each DPUd supports 1024 activated PDCHs at the same time,

and all the PDCHs support MSC-9 coding.

Packet links processing function.

PS fault self-detection.

DPUd board works for GSM services.

DPUa

PARC

RUN

ALM

ACT


Subsystems Five: Interface Board System

Board

Type

Physical

Board

Board specification Scene

EIUa Transmits, receives, encodes, and decodes 32 E1s/T1s. GSM Only

OIUa Provides one STM-1 port for TDM transmission GSM OnlyGU

Old

Boards

FG2a Provides eight channels over FE ports or two channels over GE electrical ports

GSM OnlyGU

GOUa Provides two channels over GE optical ports GSM OnlyGU

PEUa Provides 32 channels of E1s/T1s for HDLC transmission

Extracts line clock signals

GSM OnlyGU

Multi-

kernel

Boards

FG2c Provides 12 channels over FE ports or four channels over GE electrical ports

GSM OnlyGU

GOUc Provides four channels over GE optical ports GSM OnlyGU

POUc Provides four channels over channelized optical STM-1/OC-

3 ports based on IP protocol


GSM OnlyGU


Mapping for Interface Board and Version Physical

Board

Function Interface Type

Abis Ater A Gb Pb

PEUa FR BSC V9R8C01

HDLC BSC V9R8C01

IP mBSCV9R11 mBSCV9R11

FG2a IP BSC V9R8C01 BSC V9R8C01 BSC V9R8C01

GOUa IP BSC V9R8C01 BSC V9R8C01

POUc TDM+ HDLC mBSC V9R11 mBSC V9R11 mBSC V9R11 mBSC V9R11 mBSC V9R11

IP mBSC V9R11 mBSC V9R11 mBSC V9R11

FG2c IP mBSC V9R11 mBSC V9R11 mBSC V9R11 GOUc IP mBSC V9R11 mBSC V9R11 mBSC V9R11

EIUa Abis TDM BSC V9R1

Ater TDM BSC V9R1

Pb TDM BSC V9R1

A TDM BSC V9R1

OIUa Abis TDM BSC V9R1

Ater TDM BSC V9R1

Pb TDM BSC V9R1

A TDM BSC V9R1


Co-Transmission for the Interface Board Physical

Board

Function Interface Board Sharing

Iub Iu(Iur/IuCS/Iu

PS)

Abis A Ater Gb

FG2a IP Iub/Iu Co-Interface board Abis/A Co-Interface board Gb Separated

GOUa IP Iub/Iu Co-Interface board Abis/A Co-Interace board Gb Separated

AOUc ATM Iub/Iu Co-Interface board

UOIc ATM Iub/Iu Co-Interface board

IP Iub/Iu/Abis/A(Ater)

POUc TDM+ HDLC Abis/A(Ater)/Gb(Pb) Co-Interface board

IP Iub/Iu/Abis/A(Ater) Co-Interface board

FG2c IP Iub/Iu/Abis/A(Ater)/Gb(Pb) Co-Interface board

GOUc IP Iub/Iu/Abis/A(Ater)/Gb(Pb) Co-Interface board

EIUa Abis TDM

Ater TDM

Pb TDM

A TDM

OIUa Abis TDM

Ater TDM

Pb TDM

A TDM


Board Introdction-FG2c

The FG2c board supports IP over Ethernet transmission.

The FG2c board performs the following functions:

Provides 12 channels over FE ports or four channels over GE

electrical ports

Provides the link aggregation function at the MAC layer

Provides the routing-based backup and load sharing

Supports the transmission of data over all its Ethernet ports on the

basis of the synchronized clock signals

Supports the AbisAGbIuIub interfaces

Port Function Connector type

10/100BASE-T 10M/100M Ethernet ports, used to transmit 10/100M

signals

RJ45

10/100/1000BASE-T 10M/100M/1000M Ethernet ports, used to transmit

10/100/1000M signals

RJ45

2M02M1 Port for 2 MHz clock signal outputs male connector


Board Introduction-GOUc

As an optical interface board, the GOUc board supports IP

over Ethernet transmission.

The GOUc board performs the following functions:

Provides four channels over GE optical ports

Provides the routing-based backup and load sharing


Supports the Abis, A, and Gb,Iu, Iub interfaces

Port Function Connector

Type

RX Optical port, used to transmit and receive optical signals. TX

refers to the transmitting optical port, and RX refers to the

receiving optical port.

LC/PC

TX

2M02M1 Port for 2 MHz clock signal outputs SMB male

connector


Board Introduction-POUc

As an interface board, the POUc board supports IP over

channelized STM-1/OC-3 transmission.

The POUc board performs the following functions:

Provides four channels over channelized optical STM-1/OC-3 ports based

on IP protocol

Supports the PPP function


Provides the Automatic Protection Switching (APS) function between the

active and standby POUc boards

Supports the A, Abis, Gb, Ater,Pb, Iu, Iub interfaces

Port Function Connector type

RX Optical port, used to transmit and receive optical signals. TX refers to the

transmitting optical port, and RX refers to the receiving optical port.

LC/PC

TX

2M0

2M1

Output ports for clock signals. These ports are used to transmit the 2 MHz line

clock signals to the GCUa/GCGa board. The clock signals are extracted from

upper-level devices and serve as the clock sources of the BSC /RNC6900

system.

SMB male

connector


Subsystems Four: Clock Subsystem Clock Source

Bits clock

Line clock

GPS

Reference Clock for the MPS or EPS

The reference clocks are provided by the GCUa. The reference clocks generate

8kHz clock signals through the GCUa.

MPS: The clock signals are sent to the SCUa in the MPSa subrack through the

backplane. Then, the clock signals are sent to other boards in the same subrack.

EPS: The clock signals are sent to the SCUa board in the EPSa subrack through

the clock cable. Then, the signals are sent to other boards through the backplane.

Reference Clock for the TCS

Each TCS extracts line clock from the A interface. The line clock is processed

through A interface panel and then generates 8 KHz clock signals.

The clock signals are sent to the SCUa in the subrack through the backplane. Then

the clock signals are sent to other boards in the same subrack.


Structure of the Clock Synchronization

Subsystem

High-speed backplane channel

R

I

N

T

R

I

N

T

S

C

U

a

R

I

N

T

R

I

N

T

S

C

U

a

S

C

U

a

GCUa/GCGa

Clock module

RSS

8kHz

To BTS/NodeB

To BTS/NodeB To BTS/NodeB

RBS RBS

19.44MHz, 32.768MHz, 8KHz

19.44MHz, 32.768MHz,

8KHz

19.44MHz, 32.768MHz,

8KHz

8kHz

Clock cable

CN BITS GPS

8kHz


BoardGCUa

GGCU

PARC

RUN ALM ACT

8

9

COM0

COM1

0

1

2

3

4

5

6

7

CLK

OU

T

TE

ST

IN

TE

ST

OU

T

CL

KL

IN1

CLK

LIN

0

The GCUa is the general clock unit in the BSC /RNC6900. The

active and standby GCUa are configured in slots 12 and 13 in the

MPS. The GGCU board provides synchronous timing signals for the

system

The GCUa has the following functions:

Generating and keeping synchronous clock signals

Keeping the consistency of synchronization information output from the active

and standby GCUa Port Function Connector type

ATN-IN Reserved SMA male connector

CLKOUT0~9

Ports for transmitting synchronization clock signals. The ten

ports are used to transmit the 8 kHz clock signals to the

CLKIN port on the panel of the SCUa board.

RJ45

COM0,COM1 Reserved RJ45

TESTOUT Reserved SMB male connector

TESTIN Input port for testing external clock signals SMB male connector

CLKIN0-1 Synchronization clock input port, used to receive the 2.048

MHz clock signals or 2.048 Mbit/s code stream signals

SMB male connector


M2000

S

C

U

a

S

C

U

a

LANSWITCH

O

M

U

a

O

M

U

a

S

C

U

a

S

C

U

a

WEB LMT External

network

MPS

Internal

network

EPS

Internet cable

Serial cable

Subsystems Five: O&M Subsystem


Board Introduction OMU The OMUa board works as a bridge for the communication

between the WebLMT and the other boards in the BSC /RNC6900.

Function

Performing the configuration management, performance

management, fault management, security management, and loading

management functions for the system

To control the communication between the LMT/M2000 and the SCUa

board of the BSC /RNC6900

(1) Captive screw (2) Shielding finger (3) Ejector lever (4) LED (RUN)

(5) LED (ALM) (6) LED (ACT) (7) Button (RESET) (8) Button

(SHUTDOWN)

(9) USB port (10) Ethernet port (ETH0) (11) Ethernet port (ETH1) (12) Ethernet port

(ETH2)

(13) COM port (14) VGA port (15) LED (HD) (16) LED(OFFLINE)

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


TNUa

Active

Board

Board

LVDS TDM path of backplane

Inter-TNUa Cable

TNUa

Standby

TNUaActive Board

Board TNUaStandby

TDM Switching Subsystem Intra-Subrack: Other boards in the subrack connect with TNUa

(Active/Standby) through LVDS (Low Voltage Differential Signal) high

speed serial ports of backplane.

Inter-Subrack: TDM units of every subrack fully interconnected with

each other through TNUa crossover cables.

In full intra-subrack

interconnection, 2 cables

support 8K bandwidth.


Inter-Subrack Interconnections of

TNUa Crossover Cables

1

0 TNUa TNUa

TNUa TNUa

2 TNUa TNUa


Interconnection Between SCUa Active/standby SCUa boards: HiG interconnection; 30G bandwidth.

Intra-subrack : The SCUa board provides 48G GE switching capability

through backplane.

Inter-subrack : The SCUa boards are connected in star topology

through intercross cable using the GE ports on SCUa.

Switchin

g and

control

unit

Other board

Other board

Other board

Other board

Other board

Other board

Switchin

g and

control

unit

Switchin

g and

control

unit

RSS

RBS

RBS

High-speed

backplane channel Network cable


The Physical Cable Between Subracks SCUa in MPS subrack

GE07 interconnect with EPS, open the port by MML command.

GE8/9 interconnect with main TCS

GE10/11 interconnect with GBAM

SCUa in EPS subrack

GE01 interconnect with MPS


Interconnection Between Subrack

A interface

Pb interface Abis interface Ater interface

Subracks of BSC6000 compose an interconnection switching network

through cascade.

TCS

TCS TCS TC

EPS

MPS EPS BM

SCUa Star interconnection

TNUa Full interconnection


Clock Synchronization Interconnection

The connection of the GCUa of the main

subrack and the extension subrack is

shown:

The active and standby GCUa output 10-way

signal channel respectively. A signal channel of

an active GCUa and that of a standby GCUa

are integrated through the Y-shaped cable.

Any of component including GCUa, Y-shaped

cable, and SCUa is faulty, the system clock

still can work normally.


Chapter 1 BSC /RNC6900 System

Description

Chapter 2 BSC /RNC6900 Hardware

Structure


Chapter 4 BSC /RNC6900 Typical

Configuration


GSM CS Signal Flow

Abis over TDM+A over TDM


GSM CS Signal Flow Abis over HDLC/IP+A over TDM


GSM CS Signal Flow

Abis over TDM+A over IP

Abis over HDLC/IP+A over IP


GSM PS Signal Flow (Inner-PCU) Abis over TDM

Abis over HDLC/IP


Signaling Flow on the A Interface Abis over TDM+A over TDM

the signaling processing board XPUa processes the signaling

according to the MTP3, SCCP, and BSSAP protocols.

A Over IP

The A interface board processes the MTP2 protocol


Signaling Flow on the Abis Interface Abis over TDM/IP/HDLC


Signaling Flow on the Gb Interface

Gb Over IP

the signaling processing board processes the signaling

according to the NS and BSSGP protocols. Then, the signaling

is transmitted to the Gb interface board through the SCUa

board.

The Gb interface board processes the signaling according to

the IP or FR protocol. Then, the signaling is transmitted to the

SGSN over the Gb interface.


OM Signal Flow


Chapter 1 BSC /RNC6900 System

Description

Chapter 2 BSC /RNC6900 Hardware

Structure


Chapter 4 BSC /RNC6900 Typical

Configuration


Specification of the Board

XPUa/XPUb

350TRX/XPUa 640TRX/XPUb

No. of XPUa=TRX No./350TRX No. of XPUb=TRX No./640TRX

For GSM only system, we can be configured just one main control XPU,

which configured as RGCP

The control panel optimized for BSC /RNC6900, XPUa/XPUb can

congfigured in different subrack with Transcode board and interface board

averagely.


Specification of the Interface Board

Physi

cal

Board

Function Interface Type

Abis Ater A Gb Pb

POUc TDM+

HDLC

512TRX 7168CIC 3906CIC 395Mbps mBSC

V9R11

IP 2048TRX 23040CIC 23040CIC FG2c IP 2048TRX 23040 790Mbps GOUc IP 2048TRX 23040 790Mbps EIUa Abis TDM 256TRX

Ater TDM 968CIC Pb TDM 968CIC A TDM 968CIC

OIUa Abis TDM 512TRX Ater TDM 1890CIC Pb TDM 1890CIC A TDM


Typical

Configuration

Parameter Description


Typical

Configuration Parameter Description

1 BSC RNC 6900 Hardware Structure and System Description 1

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