OMD101010 BSC6000 Hardware Structure ISSUE1.0ú¿V9R8ú¬

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BSC6000 Hardware Structure

Contents

1. System Description

2. Hardware Structure

3. System Logical Structure

4. System Signal Flow

5. Network topology

6. Typical Configuration

Location of the BSC6000

The HUAWEI BSC6000 is a new generation GSM BSC

product after M900/M1800 BSC

SGSN

MSC

GGSN

.

HLR

Abis

BSC6000

MS BTS

MSBTS

MSBTS

UmPDN

AGs

Gb

BSC6000 Version Evolution

V9R1C01V9R1C03

V9R8C01

V9R3C001

R1 R3 R8

Features of the BSC6000 System Large capacity, high integration

Supporting 2048TRX at the full rate; supporting 2048TRX at the half rate

Maximum of traffic: 13,000 Erl; BHCA : 3,500,000 Maximum number of subscribers ： 650,000 Maximum number of cabinets

1 cabinet （ BM/TC combined ） 2 cabinet （ BM/TC separated ）

Features of the BSC6000 System Flexible configuration

Multiple networking modes Based on E1/T1 or STM-1 networking, the BSC6000 and the BTSs can use the star, chain, and tre

e networking modes. Based on IP networking, the BSC6000 supports HDLC-based Hub BTS networking.

Service-oriented hardware configuration The configuration for the Circuit Switched domain (CS) service and Packet Switched domain (P

S) service is flexible. The system can be configured according to different requirements on voice and data services in different phases of network construction

Multiple clock sources The selection of the synchronization clock is flexible. The clock sources can be obtained from:

– Building Integrated Timing Supply System (BITS)– A interface

Local oscillator, which keeps running stably for 48 hours

Features of the BSC6000 System Advanced management algorithm for radio resource

Power Control The BSC6000 adopts the Huawei-patented power control algorithm. This algorithm l

owers the average transmit power of the BTS and MSs while keeps the transmission quality higher than the specified threshold. This can reduce the interference to other channels, and save the power consumption of MSs

Handover The BSC6000 adopts the Huawei-patented handover algorithm. This algorithm can h

andle the handovers under any radio environment. It can effectively improve the network QoS

Radio Resource Allocation The BSC6000 realizes flexible radio resource allocation. According to the QoS require

ment and the load of the current cell, the BSC6000 can allocate a full rate TCH or a half rate TCH for a service request. This improves the utilization of the radio channel bandwidth, and meets the communication requirements

Features of the BSC6000 System Smooth capacity expansion and upgrade

Smooth capacity expansion

Online capacity expansion, online patching

Convenient Operation & maintenance

Friendly GUI

Remote maintenance

Online Help

Features of the BSC6000 System Strong performance, advanced design

Supporting 2M signaling link Supporting local multiple signaling points Supporting TC resource pool Supporting full-index report performance statistics MML function Abis transmission optimization, Hub BTS over HDLC Gb over IP

Contents





5. Network topology


Contents


2.1 Rack

2.2 Subrack

2.3 Board

Structure of Rack Model: Huawei N68-22 cabinet

Dimension: 600mm (width) x800mm (depth) x 2200mm (height)

Weight: 150 kgs of Empty cabinet; 350 kgs of full configuration

BSC6000 rack type GBCR: GSM BSC Control Processing Rack GBSR: GSM BSC Service Processing Rack

GBCR

The GBCR performs service processing and O&M functions. It consists of three service subracks

GBCR must be configured with GMPS (GSM main processing subrack)

GMPS

Air defencesubrack

Subrack

Cabling subrack

Power distribution

box

GBSR GBSR (GSM BSC Service Processi

ng Rack ): It is only configured with service subracks

One service rack can be configured with three subracks at most according to the requirement

The three service subracks consist of two types: GEPS and GTCS

Subrack

Subrack

Subrack

Fan Box PFCU (Fan Control Unit)

Monitors the running status of the fans in the fan box

Reports the working status of the fan box to GSCU

Detects the temperature of the fan box with a temperature sensor

Shows the current status of fan box and alarms through LED

PFPU (Fan Power Unit)

provides power supply for nine fans

keeps the voltage stable

Power Distribution Box Checks two channels of - 48 V input voltage Detects one route of external temperature sensor; detects one ro

ute of external humidity sensor; detects two lightning protection components; detects the status of six distributed-power output switches

Reports the status of the power distribution box and exchanges O&M information with the GSCU

Emits audio and visual alarms

Subrack The width of subrack is 19 inch

es A backplane is in the middle of

the subrack, and boards are inserted from the front and the rear of the subrack

Both the front subrack and the rear subrack provide 14 slots

Numbered as 00 --13 from left to right at the front

Numbered as 14--27 from right to left at the back

Board

Fan box

Cabling Trough

Front of subrack Rear of subrack

Subrack

GMPS/GEPSGMPS/GEPS GTCSGTCSBTSBTS

CBCCBC

MSCMSC

BMBM TCTC

AbisAbis AterAter AA

CbCb

LMTLMT

Abbreviation

Abbreviation Full Name

GEPS GSM Extended Processing SubrackGMPS GSM Main Processing SubrackGTCS GSM TransCoder SubrackLMT Local Maintenance Terminal

Subrack——GMPS

The GMPS processes the basic services and performs the O&M function. In addition, the GMPS provides clock for the system

One BSC6000 is configured with one GMPS in the GBCR. The fully configured GMPS can hold 512 TRXs

Subrack——GMPS(BM/TC combined) When non-IP boards are used on the A interface, the fully

configured GMPS is shown in the below

1300 01 02 03 07060504 08 09 10 1211

GXPUM

GXPUM

GSCU

GSCU

GTNU

GTNU

2714 15 16 17 21201918 22 23 24 2625

GGCU

GGCU

GDPUP

GEIUB

GOMU

GX

P

UT

GX

P

UT

GDPUP

GDPUX

GOIUA

GOIUA

GOIUA

GOIUA

GEPUG

GEPUG

GDPUX

GEIUB

GEIUB

GEIUB

Backplane

Frontboard

Rearboard

GOMU

Subrack——GMPS(BM/TC combined)

=+

BM/TC seperated BM/TC combined

Subrack——GMPS(BM/TC seperated) When non-IP boards are used on the A interface, the fully

configured GMPS is shown in the below

1300 01 02 03 07060504 08 09 10 1211

GXPUM

GXPUM

GSCU

GSCU

GTNU

GTNU

2714 15 16 17 21201918 22 23 24 2625

GGCU

GGCU

GDPUP

GEIUB

GOMU

GX

PUT

GX

PUT

GDPUP

GEIUB

GEIUB

GEIUB

Backplane

Frontboard

Rearboard

GOMU

GEPUG

GEPUG

Subrack——GEPS The GEPS processes services for the BSC. The BSC6000 is

configured with 0–2 GEPSs in the GBCR or the GBSR Compared with the GMPS, the GEPS is not configured wit

h the GGCU and GOMU. A fully configured GEPS can support 768 TRXs

Subrack——GEPS(BM/TC combined) When non-IP boards are used on the A interface, full

GEPS configuration is shown in the below

1300 01 02 03 07060504 08 09 10 1211

GXPUM

GXPUM

GSCU

GSCU

GTNU

GTNU

2714 15 16 17 21201918 22 23 24 2625

GDPUP

GXPUT

GXPUT

GDPUP

GDPUX

GOIUA

GOIUA

GOIUA

GOIUA

GDPUP

GOIUA

GOIUA

GEIUB

GEIUB

GDPUX

GDPUX

GEIUB

GEIUB

GEIUB

GEIUB

GDPUX

GDPUX

Rearboard

Backplane

Frontboard

Subrack——GEPS(BM/TC seperated)

1300 01 02 03 07060504 08 09 10 1211

GXPUM

GXPUM

GSCU

GSCU

GTNU

GTNU

2714 15 16 17 21201918 22 23 24 2625

GDPUP

GXPUT

GXPUT

GDPUP

GDPUP

GEIUB

GEIUB

GEIUB

GEIUB

GEIUB

GEIUB

Rearboard

Backplane

Frontboard

GTCS

The GTCS implements the transcoding, rate adaptation, and sub-multiplexing functions

The BSC6000 is configured with 1–2 GTCSs in the GBCR or the GBSR

GTCS-E1 Transmission

When the BSC6000 uses E1 transmissions on the A

interface, a GTCS provides a maximum of 3,840

speech channels

1300 01 02 03 07060504 08 09 10 1211

GDPUC

GSCU

GSCU

GTNU

GTNU

2714 15 16 17 21201918 22 23 24 2625

GEIUT

GEIUT

GEIUA

GEIUA

GEIUA

GEIUA

GEIUA

GEIUA

Rearboard

Frontboard

Backplane

GEIUA

GEIUA

GDPUC

GDPUC

GDPUC

GDPUC

GTCS-Optical Transmission

When the BSC6000 uses STM-1 transmissions on the

A interface, a GTCS provides a maximum of 7,680

speech channels

1300 01 02 03 07060504 08 09 10 1211

GDPUC

GSCU

GSCU

GTNU

GTNU

2714 15 16 17 21201918 22 23 24 2625

GEIUT

GEIUT

GOIUA

GOIUA

GOIUA

GOIUA

GOIUA

GOIUA

Rearboard

Frontboard

Backplane

GOIUA

GOIUA

GDPUC

GDPUC

GDPUC

GEIUT

GEIUT

GDPUC

GDPUC

GDPUC

GDPUC

GDPUC

Abbreviation


GGCU GSM General Clock Unit

GSCU GSM Switching and Control Unit

GTNU GSM TDM switching Network Unit

GXPUM GSM eXtensible Processing Unit for Main service

GXPUT GSM eXtensible Processing Unit for Transmission

GEIUB GSM E1/T1 Interface Unit for Abis

GEIUP GSM E1/T1 Interface Unit for Pb

GEIUT GSM E1/T1 Interface Unit for aTer

GEIUA GSM E1/T1 Interface Unit for A

GOIUB GSM Optic Interface Unit for Abis

GOIUP GSM Optic Interface Unit for Pb

GOIUT GSM Optic Interface Unit for aTer

GOIUA GSM Optic Interface Unit for A

Abbreviation


GOMU GSM Operation & Maintenance Unit

GDPUC GSM Data Processing Unit for CS service

GDPUP GSM Data Processing Unit for PS service

GDPUX GSM Data Processing Unit for eXtensible service

GFGUA GSM Fast ethernet and Gigabit ethernet Unit for A

GFGUB GSM Fast ethernet and Gigabit ethernet Unit for Abis

GFGUG GSM Fast ethernet and Gigabit ethernet Unit for Gb

GOGUA GSM Optic Gigabit ethernet Unit for A

GOGUB GSM Optic Gigabit ethernet Unit for Abis

GEHUB GSM E1/T1 High level Data Link Control Unit for Abis

GEPUG GSM E1/T1 Packet Unit for Gb

Board- GGCU Configured in slots 12 and 13 in the GMPS (active/standby mode) provides synchronous timing signals for the system Generates synchronous clock signals Keeps the consistency of synchronization information output fro

m the active and standby GGCUs

Port Function Matching Connector

CLKOUT 0-9

Output 8 kHz clock signals to the GSCU

RJ45

COM 0-1 Reserved RJ45

TESTOUT Reserved

SMB male connector

TESTIN Reserved

CLKIN 0-1 Synchronization clock signal input port, used to input one route of external 2.048 MHz signal and 2.048 Mbit/s code strea

m signals

Board- GTNU Configured in slots 4 and slot 5 of the

GMPS/GEPS/GTCS (active/standby mode)

Performs the TDM (Time Division Multiplexing)

switching function

Provides 128 K *128 K TDM switching

Allocates TDM network resources, establishes and

releases radio links

Port Function

Matching

connector

TDM 0-5TDM high-speed serial port, used to connec

t the GTNUs between subracks DB14

Board- GSCU Configured slots 6 and 7 of the GMPS/GEPS/GTCS (active/standby

mode) Performs maintenance management Provides a GE platform for the subrack Provides clock information for the other boards in the same subrac

k except the GGCU in the GMPS

Port Function Matching

Connector 10/100/1000

BASE-T 0–9

10/100/1000 Mbit/s Ethernet ports, used to connect subracks

RJ45 10/100/1000 BASE-T 10–11

10/100/1000 Mbit/s Ethernet ports, used to connect GBAM/GOMU (Only the main subrack is connected

with the GBAM/GOMU)COM Debugging port

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

signals from the panel of the GGCU

TESTOUT Clock test signal port, used to output clock test

signals

SMB male

Board- GXPUM Configured in slots 0 and 1 of the

GMPS/GEPS

(active/standby mode).

System information management

Channel assignment

BTS common service management

Performs the short message cell

broadcast

Port Function Matching

connector

10/100/1000

BASEs- T0-3GE/FE Ethernet port, reserved RJ45

Paging control

Voice call control

Packet service control

Handover

Power control

Board- GXPUT The GXPUT is the transmission processing unit in

the BSC6000. The active GXPUT and standby

GXPUT are inserted in slots 2 and slot 3 in the

GMPS or GEPS.

The GXPUT perform LAPD links processing

function of the system

Port Function Matching connector

10/100/1000 BASEs

T0-3GE/FE Ethernet port, reserved RJ45

Board- GDPUC/X

Indicator Color Status Meaning

RUN Green

On for one second and off for one second

The board is working normally

On for 0.125 second and off for 0.125 second

The board is in loading state

On for 2 seconds and off for 2 seconds

The board is testing

On There is power supply but the board is faulty

Off There is no power supply or the board is faulty

ALM RedOff No alarm

On (or flashing) The board has a fault alarm

ACT GreenOn The board is in active state

Off The board is in standby state

Board- GDPUC/GDPUX Configured in slot 0 to slot 3, slot 8 to slot 13 of the

GTCS (N+1 redundant backup mode)

Performs the voice and data service processing

function

Encodes and decodes speech services

Performs data service rate adaptation

Performs Tandem Free Operation (TFO)

Performs voice enhancement function

Automatically detects voice faults

GDPUC/GDPUX provide 1320 voice channel processing

GDPUX provide 3740 IP/HDLC packet channel

processing

Board- GDPUP

Configured in slot 8 to slot 11 of GMPS, slot 8 to slot 13 of the GEPS (N+1 redundant backup mode)

Performs the packet data service processing functiona

GDPUP provide 1024 PDCH channel processing(MCS-9)

Automatically detects packet data faults

Board——GOMU As the OM center of the BSC, The GOMUs are installed in slots 20–23

in the GMPS and work in active/standby mode. The GOMU features high computation speed and outstanding data processing capability

The GOMU has the following functions: Provides configuration management, performance managemen

t, fault management, security management, and loading management for the BSC

Interfaces to the LMT/M2000 on behalf of the BSC(1) Screw (2) Leaf spring (3) Wrench

(4) RUN LED (5) ALM LED (6) ACT LED

(7) Reset button

(8) Shutdown button

(9) USB port

(10) ETH0 (Ethernet port)



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

(16) OFFLINE LED

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

Board——GOMU IndicatorLED Color Status DescriptionRUN Green On for 1s and off for

1sThe board is operating

On for 0.125s and off for 0.125s

The board is loading software

On for 2s and off for 2s

The board is being tested

Steady on There is power supply but the board is faulty

Steady off There is no power supply or the board is faulty

ALM Red On (or flashing) There is a fault related to the running boardSteady off There is no alarm

ACT Green Steady on The board works in active modeSteady off The board works in standby mode

OFFLINE Blue On The board can be removedOff The board cannot be removed

On for 0.125s and off for 0.125s

The status of the board is switching

HD Green Flashing The hard disk is performing read and write operations

Steady off The hard disk is not performing read and write operations

Board- GEIU/ GOIU GEIU/GOIU works in active/standby mode and can be catego

rized(phan) into the following types : The GEIUB/GOIUB is the Interface Unit for the Abis interface The GEIUP/GOIUP is the Interface Unit for the Pb interface The GEIUT/GOIUT is the Interface Unit for the Ater interface The GEIUA/GOIUA is the Interface Unit for the A interface

GEIU

PARC

RUNALMACT

TE

ST

OU

T2M

02M

1

GOIU

PARC

RUNALMACT

TE

ST

OU

T2M

02M

1

LOS

TX

RX

E1/T1(0~7)

E1/T1(16~23)

E1/T1(24~31)

E1/T1(8~15)

Interface Function Matching connector

E1/ T1

0-31

The E1/ T1 port,0 ~31 of the used to transmit and receive E1/ T1 signals on routes 0-31

DB44

2M 0-12.048 MHz clock source output port, used to output the extracted line clock as the system clock source

SMB male connector

TESTOUT 2.048 MHz clock output port, used to output the testing clock of the system

SMB male connector

Board- GEIU/ GOIU The GEIU/GOIU has the following functions:

Processes the SS7 MTP2 protocols (performed by GEIUT/GOIUT) Processes the Link Access Procedure on the D channel (LAPD) pro

tocols (performed by GEIUP/GOIUP or GEIUB/GOIUB ) Provides maintenance links when GTCS subracks are configured

at the MSC side Performs inter-board Tributary Protect Switching (TPS)

GEIU

PARC

RUNALMACT

TE

ST

OU

T2M

02M

1

GOIU

PARC

RUNALMACT

TE

ST

OU

T2M

02M

1

LOS

TX

RX

E1/T1(0~7)

E1/T1(16~23)

E1/T1(24~31)

E1/T1(8~15)

Interface Function Matching connector

RX Transmitting optical port 155.52 Mbit/s LC connectorTX Receiving optical port 155.52 Mbit/s

2M 0-12.048 MHz clock source output port, used to output the extracted line clock as the system clock source

SMB male connector

TESTOUT 2.048 MHz clock output port, used to output the testing clock of the system

SMB male connector

Board- GEIU

DIP switch

Bit Description 75 Ω

120 Ω

S1 1 0 -7 of the Used to select the impedance on E1/ T1 links 7

ON OFF

2 8 -15 of the Used to select the impedance on E1/ T1 links 15

ON OFF


ON OFF


ON OFF

5-8

Unused ON OFF

S3 1-8

0 -7 of the Used to set the protection grounding of the transmitting end of E1/ T1 links 7

ON OFF

S4 1-8


ON OFF

S5 1-8


ON OFF

S6 1-8


ON OFF

There are DIP switches on GEIU, the default setting is to

support 75Ω

Board- GFGUA/B/G


10/100M 10M/100Mbit/s Ethernet ports, used to transmit 10M/100M signal

RJ45

10/100/1000M 10M/100M/1000 Mbit/s Ethernet ports, used to transmit 10M/100M/1000M signal

RJ45

2M0 testing －

2M1 testing －

Board- GFGUA/B/G

Indicator Color Status Meaning

RUN Green

On for one second and off for one second The board is working normally

On for 0.125 second and off for 0.125 second The board is in loading state

On for 2 seconds and off for 2 seconds The board is testing

On There is power supply but the board is faulty

Off There is no power supply or the board is faulty

ALM RedOff No alarm

On (or flashing) The board has a fault alarm

ACT GreenOn The board is in active state

Off The board is in standby state

link Green

On The link is connected.

Off The link is broken.

ACT(link) Green

Off No data is being transmitted on the

port.

Flash Data is being transmitted on the port.

Board- GEPUG/GEHUB

Port FunctionMatching Connector

E1/T1 (0–7)E1/T1 port, used to transmit and receive E1/T1 signals on routes 0–7

DB44 connector


DB44 connector


DB44 connector


DB44 connector

2M0–12.048 MHz clock source output port, used to provide extracted line clock as clock source for the system

SMB male connector

GOGUA/GOGUB


RX/TX Transmitting optical port/Receiving optical port

LC/PC connector

2M0 testing SMB male connector

2M1 testing SMB male connector

Contents





5. Network topology


Contents


3.1 TDM Switching Subsystem

3.2 GE Switching Subsystem

3.3 Service Processing Subsystem

3.4 Service Control Subsystem

3.5 Interface and Signaling Processing Subsystem

3.6 Clock Subsystem

System Logical Structure

TDM switching subsystem

GE switching subsystem

Clock subsystem

Servicecontrol

subsystem

Serviceprocessingsubsystem

Interfaceand

signalingprocessingsubsystem

/ /E1/T1/STM-1 GE FE to BTS

/ / toSGSNE1/T1/STM-1 GE FE

/ / to MSCE1/T1/STM-1 GE FE

TDM Switching Subsystem The Time Division Multiplexing (TDM) switching subsystem provides circuit

switched domain (CS) switching for the system Provides TDM bearers for the A, Abis, Ater, and Pb interfaces Performs TDM switching and providing circuit switched domain (CS) switching for the system Provides TDM bearers for the system service processing

Logical Unit Physical entity

TDM access bearer unit Interface board

TDM switching unit GTNU

TDM processing bearer unit

GDPUX

TDM Access Bearer Unit The TDM access bearer unit provides TDM bearers for the services on t

he A, Abis and Ater interface. Each board has the same hardware structure that contains backplane and sub board. By loading software, the functions of A, Abis, Ater, and Pb interface can be enabled

TDM Switching Unit Intra-Subrack TDM Switching

GTNU (active) GTNU (standby)

Board Board Board………

Connection between a board and the active GTNU through a backplane TDM path

Connection between a board and the standby GTNU through a backplane TDM path

TDM Switching Unit Inter-Subrack TDM switching

Inter-subrack TDM switching is carried out through mesh interconnections

The BSC6000 supports the following mesh interconnections between a maximum of four subracks

Mesh interconnections between the GMPS and three GEPSs Mesh interconnection between four GTCSs

Subrack 1Subrack 1

Subrack 2Subrack 2

Subrack 4Subrack 4

Subrack 3Subrack 3

Inter-Subrack Interconnections The right figure sh

ows the interconnections of GTNU crossover cables when four service subracks are configured

GEPS 1#

GMPS 0#GTNU GTNU

GTNU GTNU

GEPS 2#GTNU GTNU

GEPS 3#GTNU GTNU

GTNU Crossover Ethernet Cable

Pin12

W1 W3

W2 W4

1

B

B

X4

X3X1

X2

A

A

Pin14

Pin1 Pin14

3

GE Switching Subsystem The Gigabit Ethernet (GE) switching subsystem performs GE switching

of signaling and O&M interface, packet message switching The GSCU performs operation and maintenance of its subrack and pr

ovides GE switching for the other boards in the same subrack

GSCU (active) GSCU (standby)

Board Board Board………

Intra-Subrack ConnectionIntra-Subrack Connection

Backplane pathBackplane path

GE Switching Unit Inter-subrack GE switching: star interconnection through

crossover networks

GEPSGEPS

GEPSGEPS GMPSGMPS

GEPSGEPS

GTCSGTCS

GTCSGTCS

GTCSGTCS

GTCSGTCS

Only in Local Only in Local GTCS mode:GTCS mode:Crossed LAN Crossed LAN

cables between cables between GSCUGSCU

Note: In Remote GTCS mode, loading path is in Ater interface

LMT

M2000

LanSwitch

GBAM/GOMU

GMPS/GSCU

GE 0

GE 1

GE 2

GE 3

GE 4

GE 5

GE 6

GE 9

GE 7

GE 8

GE 10

GE 11

FE

GE TRUNK1

GE TRUNK3

GE TRUNK4

GE TRUNK6

GE TRUNK5

GE TRUNK4

CPU FE

GE 0

GE 1

GE 0

GE 1

GE 0

GE 1

1 ＃ GEPSGE TRUNK2

GE Switching Interconnection

GE 0

GE 1

2 ＃ GEPS

3 ＃ GEPS

GTCS Centre

Cross LAN cables

GSCU0

GSCU0 GSCU1

GSCU1

Service Processing Subsystem The hardware entity of the service processing

subsystem is the GDPUC/X board Transcoding Rate adaptation

Every board can process 1320

circuits in A interface Works in resource pool mode

Service Control Subsystem

The hardware entities: The GXPUM board The GXPUT board The GOMU board The GSCU board in the GTCS subrack

Service Control Subsystem The GXPUM board performs the main service processing of the

BSC6000 Paging control, system information management, channel assign

ment, and BTS common service management voice call control, PS service control, handover, and power control

The GXPUT board performs the cell broadcast function The GOMU server performs BTS O&M management The GSCU board in the GTCS subrack performs the TC resource

pool management

Interface Processing Subsystem The interface and signaling subsystem provides interf

aces of BSC, BTS, and NSS, which performs signaling processing function of data link layer

Provides A/Abis/Ater interfaces Supports cell broadcast message service processing

Interface Processing Subsystem

Traffic Processing GEIUB/GOIUB supports 256 TRXs GEIUT/GOIUT supports 3840 speech channels GEIUP/GOIUP supports 3840 16Kbps PCICs GEIUA supports 960 speech channels GOIUA supports 1920 speech channels

Interface Processing Subsystem

Traffic Processing GFGUB supports 384 TRXs GFGUA supports 6144 speech channels GFGUG supports 128M bps GOGUA supports 6144 speech channels GOGUB supports 384 TRXs GEHUB supports 384 TRXs GEPUG supports 64M bps

Clock Subsystem Hardware entity is the GSM General Clock Unit (GGCU) Clock sources

Building Integrated Timing Supply System (BITS) 2 MHz clock 2 Mbit/s clock The 2 Mbit/s clock source has higher anti-interference capabilities than the 2 MHz

clock source

Line clock In BM/TC separated configuration mode, the GTCS extracts the line clock signals f

rom the A interface. The GGCU extracts the line clock signals from the Ater interface, and then distributes clock signals to the GMPS/GEPS.

In BM/TC combined configuration mode, the GMPS extracts the line clock signals from the A interface. Then, the clock signals are transmitted to the GGCU through the backplane.

In A over IP configuration mode, the BSC cannot use the line clock.

Clock Configuration

Configuration for the clock in the GGCU

Without BITS

GGCU extracts the synchronization reference clock from

the interface board of GMPS

Other distribution cables are not required

GGCU chooses the clock reference of backplane

With BITS

GGCU should be equipped with distribution cables

BITS has high priority

GSCU

Active/standby GGCU

in GMPS

Service

board

Service

board

GMPS

BITS Line Clock

Backplane transmission

Distribution cable transmission


Clock System Scheme

GSCU

Service

board

Service

board

GEPS


GSCU

Service

board

Service

board

GEPS


Y-shaped clock cable

Clock Synchronization Interconnection

GMPS

GGCUGGCU

GEPSGSCU GSCU

Y-shaped cable

……

CLKIN CLKIN

GEPSGSCU GSCU

CLKIN CLKIN

……

11

2

1

8

1

8

1

8

W2

W3

X2

X3

W1X1

Contents





5. Network topology


Contents


4.1 System Signal Flow

4.2 O&M Signal Flow

4.3 Alarm Channel

CS Service Signal Flow

Ater

A

Abis

BTSMSMSC

GEIUB

GTNU

GEIUT

GMPS/GEPS

GEIUT

GTNU

GEIUA

GTCS

GDPUX

Abis over TDM+A over TDM

Front board E1/T1 cable

TDM switching on the backplane

Rear board

DemuxDemuxMux-16k/8k/subTSMux-16k/8k/subTS

Demux-64k/TSDemux-64k/TS Code/decode- ARCode/decode- AR

PCM 64kPCM 64k

CS Service Signal Flow

Abis over HDLC+A over TDM

PS Service Signal Flow Abis over TDM

GbAbis

BTSMS

GEIUB

GTNU

GEPUG

GMPS/GEPS

SGSN

GSCU

GDPUP



Rear board

1-4 SubTS1-4 SubTS Format coversionFormat coversion Process data L1Process data L1

PS Service Signal Flow

Abis over HDLC

GbAbis

BTSMS

GMPS/GEPS

SGSN

GSCU

GEPUG

GSCU

GDPUP

GEHUB



Rear board

SS7 on the A Interface The signals are processed through the MTP2, and

then sent to the GXPUM in the mode of internal signaling flow

Ater

AMSC

GSCU

GEIUT

GMPS/GEPS

GEIUT

GTNU

GEIUA

GTCS

GXPUM



Rear board

LAPD on the Abis Interface

Abis

BTSMS

Abis board

GSCU

GMPS/GEPS

GXPUT

GXPUM

GSCU



Rear board

Signaling flow on Gb interface

Gb

GSCU

GEPUG

GMPS/GEPS

SGSN

GXPUM



Rear board

O&M Flow (Local GTCS)

GSCU

GE on the backplane

Inter-subrack Cable

GMPS

Service

board

GEPS GTCS

GSCU

GSCU

Service

board

Service

board

Main GTCS

GSCU

Service

board

GOMU/

L

M

T

O&M Flow(Remote GTCS)

GEPS GTCS

Main GTCSGMPS

EIUT

GOMU

GSCU

EIUT

GSCU

GSCU

GSCU

GE on the backplane

HDLC

Inter-subrack Cable

Service

board

Service

board

Service

board

Service

board

L

M

T

Connection of Alarm Box Connection scheme

Alarm management

module

GOMUAlarm box

Convert Management System

LMT

Serial CableSerial Cable

Report of Alarm from Local Subrack

GMPS

GSCU GOMULMT

ConvertAlarm box

GEPS

GSCU

Service board

Service board

Generate/Generate/Shield Shield AlarmsAlarms

Report Report AlarmsAlarms

Send Send AlarmsAlarms

&Record &Record logslogs

Output Output Alarms Alarms &Drive &Drive

Alarm boxAlarm box

Generate SoundGenerate Sounds&Lightss&Lights

BTS

Report of Alarm from Remote Subrack

GMPS

GEIUT

GOMULMT

ConvertAlarm box

GTCS

GEIUT

Service board

Service board

GSCU

GSCU

HDLCHDLCLinkLink

Contents





5. Network topology


Abis over TDM Abis over E1/T1

Abis over TDM Abis over STM-1

Abis over HDLC

A interface over TDM

A interface over STM-1

Ater interface over TDM

Gb interface over FR

Gb interface over IP

Contents






Typical Configuration Capacity of

this

configuration:

256TRX full

rate/256TRX

half rate


this

configuration:

512TRX full

rate/512TRX

half rate


this

configuration:

768TRX full

rate/768TRX

half rate


this

configuration:

1024TRX full

rate/1024TRX

half rate

Thank youwww.huawei.com

OMD101010 BSC6000 Hardware Structure ISSUE1.0ú¿V9R8ú¬

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Transcript of OMD101010 BSC6000 Hardware Structure ISSUE1.0ú¿V9R8ú¬