BSC6900 Hardware System Structure

7/27/2019 BSC6900 Hardware System Structure

1/64

www.huawei.com

Copyright 2007 Huawei Technologies Co., Ltd. All rights reserved.

BSC6900 Hardware

System Structure


2/64

Copyright 2007 Huawei Technologies Co., Ltd. All rights reserved. Page2

Contents

1 BSC6900 System Overview

2 BSC6900 Hardware Structure

3 BSC6900 Signal Flows


3/64


RNC in WCDMA System

RNC

RNC

NodeB

NodeB

NodeB

CS

PS

CBC

UE UTRAN CNUu Iu

Iu-CS

Iu-PS

Iu-BC

Iur

Iub

Iub

Iub


4/64


Capacity

HW68 R11 Board


5/64


Capacity HW69 R11 Board


6/64


Contents


2 BSC6900 Hardware Structure2 BSC6900 Hardware Structure



7/64


Contents


2.1 BSC6900 Cabinets and Subracks

2.2 BSC6900 Boards

2.3 BSC6900 Cables


8/64


BSC6900 Cabinets

EPS

MPS

MPR EPR

Full Configuration

MPR: Main processing rack

EPR: Extended processing rack

MPS: Main processing subrack

EPS: Extended processing subrack

EPSEPS

EPS

EPS


9/64


Item Specification

Outline

dimensioning (mm)

2200 H600

W800D

Height of available

space

46U

Weight 140~350kg

Power consumptionRSR: 4,650W

RBR: 4,660 W

BSC6900 Cabinets

Front View Rear View


10/64


BSC6900 Subrack

12 U shielding subrack of Huawei

28 slots with backplane is positioned in the middle

Front View Rear View


11/64


Contents



2.2 BSC6900 Boards

2.3 BSC6900 Cables


12/64


13/64


14/64


RNC Logical Structure

LMT/M2000

clocksynchronization

subsystem

switchingsubsystem

transportsubsyste

m

serviceprocessingsubsystem



BAMBAM

RNC

To NodeB

To MSC

To other RNC

To SGSN

Clock signal

Subsystem


15/64


16/64


17/64


Switching Subsystem

Inter-Subrack Connection


18/64


Switching Subsystem

SCUa: Switching and Control Unit

High-speed backplane channel in each subrack


19/64


Switching Subsystem

Functions

Providing internal Medium Access Control (MAC)

switching

Enabling convergence of ATM and IP networks

Providing a service switching channel for EPS

Providing an OM channel for EPS

Distributing timing signal and RFN signal to EPS boards


20/64


SCUa Board

Port Name Function Type

10/100/1000BASE-T 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 Test the timing signal output SMB male

Functions

Main control board for configuration and maintenance

Support GE Switching for local subrackProvide synchronous clock and time synchronous information

Working mode

Locate in 6th and 7th slot in active and standby mode

Work in full-interconnection and dual-plane mode among subracks

SCUa

PARC

RUN

ALM

ACT

COM

TESTO UT

CLKIN

ACT

LINK

1 0 / 1 0 0 / 1 0 0

0 B A S E

- T

RESET

ACTLINK

8

9

0

1

2

3

4

5

6

7

11

10

ACTLINK


21/64


22/64


23/64


Service Processing Subsystem


24/64


25/64


26/64


XPUa

PARC

RUN

ALM

ACT

10/100/1000BASE-T

ACTLINK

0

1

2

3

SPUa Board Component

Four independent subsystems

Motherboard-subboard structure

Two sub-boards

Each has two CPU subsystems

Function

Processing signaling and algorithm

Iub/Iur/Iu interface signaling processing

Wireless and transport resource

management


27/64


DPUa

PARC

RUN

ALM

ACT

DPUb Board

Component

22 DSPs in one board

Function

Processing data of wireless frame protocol


28/64


29/64


Clock SynchronizationSubsystem


30/64


Clock Synchronization Subsystem

RINT

RINT

SCUa

RINT

RINT

SCUa

SCUa

GCUa/GCGa

Clock module

RSS

8kHz

To NodeB

To NodeBTo NodeB

RBS RBS

19.44MHz, 32.768MHz, 8KHz

19.44MHz,

32.768MHz, 8KHz

19.44MHz,

32.768MHz, 8KHz

8kHz

Clock cableHigh-speed backplane

channel

CN BITS GPS Optional


31/64


GCUa: General Clock Unit

GCGa: General Clock with GPS Card

Function

Generating system timing signal

Generating RFN signal

Clock SynchronizationSubsystem


32/64


Port name Function Port type

ATN-IN Port for the GPS antenna SMA

female

CLKOUT

0~9

Output 8 kHz timing signals and 1PPS

timing signals

RJ45

COM0 Reserved RJ45

COM1 Port for 422-level 8kHz timing signals RJ45

TESTOUT Testing timing signal output SMB male

TESTIN Testing timing signal input of 2 MHz

signals

SMB male

CLKIN0 Inputting BITS timing and line timing

signals

SMB male

CLKIN1 Inputting BITS timing and line timing SMB male

GCUa/GCGa Board


33/64


34/64


35/64


Transport Subsystem

RINT Interface

AEUa 32 channels ATM over E1/T1/J1 interface Iub/IuCs/Iur

AOUa Two optical ports for ATM over channelized STM-1 Iub/IuCs/Iur

UOIa Four unchannelized STM-1 optical ports Iub/IuCs/Iur, IuPs

PEUa 32 channels of IP over PPP/MLPPP over E1/T1 Iub/IuCs/Iur

FG2a Eight FE ports or two GE electrical ports Iub/IuCs/Iur, IuPs

GOUa Two GE optical ports Iub/IuCs/Iur, IuPs

RINT: RNC Interface Board


36/64


AEUa Board Function

Providing 32 channels of ATM over E1/T1/J1 for Iub,Iur and Iu-CS

Supporting IMA, UNI, Fractional ATM, fractional IMA

Supporting Timeslot cross-connection

Supporting AAL2 switching

Supporting Intra-board ATM switching

Extracting line clock and outputting synchronization

signals to GCUa

Outputting synchronization signals to the NodeB


37/64


AOUa Board Function

Providing two optical ports for ATM over channlized

STM-1

Supporting Iu-CS, Iur, and Iub interface

Supporting IMA and UNI

Supporting AAL2 switching

Supporting Intra-board ATM switching

Extracting line clock and outputting synchronization

signals to GCUa



38/64


UOIa Board Function

Providing 4 unchannelized STM-1 optical ports Supporting ATM over SDH

Supporting Iu-CS, Iu-PS, Iur, and Iub

Extracting line clock and outputting

synchronization signals to GCUa



39/64


PEUa Board Function

Providing 32 channels of IP over PPP/MLPPP over

E1/T1/J1

Supporting Iu-CS, Iur, and Iub

Providing the fractional IP function

Supporting timeslot cross-connection

Extracting line clock and outputting

synchronization signals to GCUa



40/64


FG2a Board Function

Providing 8 FE or 2 GE electrical ports Providing IP over FE or GE



41/64


GOUa Board Function

Providing two GE optical ports

Providing IP over GE



42/64


43/64


OM Subsystem

SCUa

SCUa

HUB

O

MUa

O

MUa

S

CUa

S

CUa

Alarm

box LMT

External

network

RSS

To M2000

Internal

network

RBS

Ethernet cable

Serial cable


44/64


OM Subsystem

OMUa: Operation and Maintenance Unit Supporting two CPU, 2G memory

Supporting three ETH port (10/100/1000M Base-T self-adaptation)

Four USB(USB2.0) ports

Installed only in slots 20 and 21, or slots 22 and 23 in RSS


45/64


OMUa Board

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


46/64


Contents



2.2 BSC6900 Boards

2.3 BSC6900 Cables

BSC6900 Cable Distribution


47/64


BSC6900 Cable DistributionFigure


48/64


Main Cables

Trunk Cables 75 coaxial cable and Y-shaped 75-ohm coaxial cable

120 twisted pair cable and Y-shaped 120-ohm twisted pair cable

Network Cables

Straight through network cable

used to connect the OMUa board to other devices

Crossover network cable

used to connect the SCU board

Optical Fibers

LC/PC-SC/PC single-mode optical cable

LC/PC-FC/PC single-mode optical cable


49/64


Y-Shaped E1/T1 cable

E1/T1 cable is used to connect E1/T1/J1 port

The Y-shaped 75-ohm coaxial cable/ 120-ohm coaxial

cable

Two DB44 connectors at one end

Each connector with a structure of 2 x 8 cores

The 16 micro coaxial cables form eight E1 RX/TX links

Y shaped RNC Clock Signal


50/64


Y-shaped RNC Clock SignalCable

One RJ45 connector end

Connected to the port CLKIN on SCUa

Two RJ45 connectors end

Connected to ports CLKOUT on 2 GCUa in the RSS subrack

(1)(2)

(1)

(1)


51/64


3

Optical Cables

LC/PC-SC/PC single-mode optical cable

LC/PC-FC/PC single-mode optical cable

It is used to connect the other NEs


52/64


Network Cable

Crossover network cable

Connecting the SCU boards

Straight-through network cable

Connecting the OMUa board with other devices


53/64


Monitoring Signal Cable of RNCPower Distribution Box

A DB9 connector at one end

A DB15 connector at the other end

X1: DB9 connector X2: DB15 connector SHELL: Metal case


54/64


RNC Alarm Box Signal Cable

Used to transmit alarm information to the alarm box

For display audible and visible warning

X1: RJ45 connector X2: DB9 connector


55/64


Contents





56/64


BSC6900 Signal Flows

Control plane message flows

Uu interface message flow

Iub/Iur/Iu interfaces message flows

User plane data flows

CS data flow

PS data flow

MBMS Service data flow


57/64


Control Plane Message Flow

Uu Interface Message Flow

Intra-RNC Control Message Flow on Uu Interface

RINT

NODEBUE

NODEBUESPUa

SPUa

DPUb

DPUb

RINT

RSS

SPM SPM

RNC

l l l


58/64


RINT

SPUa

SPUa

DPUb

DPUb

RINT

SPMSPM

DRNC

RINT

SRNC

NODEBUE

Control Plane Message Flow Uu Interface Message Flow

Inter-RNC Control Message Flow on Uu Interface

C l l l


59/64


NODEBUE

NODEBUE RINT

SPUa

DPUb

SPUa

DPUb

RINT

RSS

SPM SPM

RNC

Control Plane Message Flow Iub Interface Message Flow

C l Pl M Fl


60/64


RINT

SPUa

DPUb

SPUa

DPUb

RINT

RSS

SPM SPM

RNC

MSC/SGSN/other RNC

Control Plane Message Flow Iu/Iur Interface Message Flow


61/64


User Plane Data Flow

NODEBUE

MSC/SGSN

RINT

SPUa

DPUb

SPUa

DPUb

RINT

RSS

SPM SPM

RNC

RINT

NODEB UE

Data Flow Between Iub and Iu-CS/Iu-PS

Intra-RNC Data Flow


62/64


RINT

SPUa

SPUb

DPUa

DPUb

RINT

SPM SPM

DRNC

RINT

SRNC

NODEBUE

RINT

MSC/SGSN

User Plane Data Flow Data Flow Between Iub and Iu-CS/Iu-PS

Inter-RNC Data Flow


63/64


NODEBUE

RINT

DPUb

SPUa

RINT

RSS

SPM

RNC

CSUa

SGSN

User Plane Data Flow MBMS Service Data Flow


64/64

Thank youwww.huawei.com

Documents

BSC6900 Hardware System Structure