OMD801101 BSC6000 Hardware Structure ISSUE1

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Copyright © 2008 Huawei Technologies Co., Ltd. All rights reserved.

BSC6000

Hardware Structure

Copyright © 2008 Huawei Technologies Co., Ltd. All rights reserved. Page1

Foreword

This course describes the hardware structure of the

HUAWEI BSC6000 system, board module functions, system

operating principles, system signal flows, and O&M flows. In

addition, this course describes the principles of hardware

configuration and lists some typical configurations


References

BSC6000 Hardware Description

BSC6000 Product Description

BSC6000 Performance Description


Objectives

Upon completion of this course, you will be able to:

Understand BSC6000 function and features

Master BSC6000 hardware structure

Understand BSC6000 system principle

Master BSC6000 typical configuration


Contents

1. System Description

2. Hardware Structure

3. System Logical Structure

4. System Signal Flow

5. 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

MSBTS

MSBTS

MSBTS

UmPDN

AGs

Gb


BSC6000 Version Evolution

V9R1C01V9R1C03

V9R8C01

V9R3C001

R1 R3 R8


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


Large capacity High integration

BM/TC combined，1 cabinet support 2048TRX

BM/TC separated, 2 cabinets support 2048TRX

2048TRX

2048TRX

+

BM TC

BM+TC


PCU6000

Built-in PCU, Advanced PS Performance

One GDPUP supply 1024 MCS-9 active PDCH processing，

BSC6000 support 8192 MCS-9 active PDCH at most

Support 512M Gb throughput at most

14 15 16 17 18 19 20 21 22 23 24 25 26 27

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0 1 2 3 4 5 6 7 8 9 10 11 12 13

GOMU GOMU

BSC6000


Support BSS Over IP

A Interface

Over IP

Abis

Interface

Over IP

F

G

2

a

IP route transmitting

protocol function

8FE ports or 2GE ports

Support IP over

FE/GE/IWF

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IP route transmitting

protocol function

Supply 2 optical ports

Support IP over GE

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Support 6144 voice circuits;

Support A interface over IP

384TRX，100% Half Rate

Supply Abis interface by

FE/GE

384TRX，100% Half Rate

Supply Abis interface by

GE

Support 6144 voice circuits

Support A interface over IP


Support Abis over HDLC

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Supply HDLC over

E1/T1

Supply 32E1/T1

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384TRX，100% Half Rate.

Typical configuration is one E1 could

bear24TRX(FR) or 21TRX(HR).


Flexible configuration

Multiple networking modes

Based on E1/T1 or STM-1 networking, the BSC6000 and the BTSs

can use the star, chain, and tree networking modes

Service-oriented hardware configuration

The configuration for the Circuit Switched domain (CS) service and

Packet Switched domain (PS) service is flexible. The system can be

configured according to different requirements on voice and data

services in different phases of network construction

Smooth capacity expansion and upgrade

Smooth capacity expansion

Online capacity expansion, online patching


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

Support built-in GOMU


Contents







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 GBAM and GOMU are the operation

and maintenance entities of the BSC. There

are two types of BSC hardware

configuration: type A and type B. In

configuration type A, the BSC is configured

with the GBAM. In configuration type B, the

BSC is configured with the GOMU

One BSC can use only one configuration

type

GBAM

LAN Switch

KVM

Power

distribution box

Subrack

Fan box

Cabling

subrack

Type A GIMS

Type B，this location is

configured with GMPS


GBSR

GBSR (GSM BSC Service

Processing 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 route

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

inches

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 Type

The BSC subracks can be classified into the following types:

GMPS--GSM Main Processing Subrack

GEPS--GSM Extended Processing Subrack

GTCS--GSM TransCoder Subrack

Generally, both the GMPS and GEPS are referred to the

BM subrack, and the GTCS is referred to as the TC subrack


Configuration Modes of Subracks

The BSC subracks support the following configuration

modes:

BM/TC separated-- In BM/TC separated configuration mode, the BSC

consists of the GMPS/GEPS and GTCS. The GTCS can be

configured on the BSC side or on the MSC side based on the OM

path between the GMPS and the GTCS

BM/TC combined-- In BM/TC combined configuration mode, the TC

function is performed by the GMPS or GEPS. In BM/TC combined

configuration mode, the TC function is performed by the GDPUX


Type of PCU

There are two types of PCU: built-in PCU and external

PCU

The external PCU is an independent network element that

provides PS service processing functions. It communicates

with the BSC over the Pb interface, and communicates with the

SGSN over the Gb interface

The built-in PCU is the GDPUP, which provides PS service

processing functions. The GDPUP is configured in the

GMPS/GEPS


Example

GMPS/GEPS GTCSBTS

CBC

MSC

BM TC

Abis Ater A

Cb

LMT


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 separated)

When non-IP boards are used on the A interface, the fully

configured GMPS is shown in the below

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Backplane

Frontboard

Rearboard

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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

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Rear

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Backplane

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GTCS-Optical Transmission

When the BSC6000 uses STM-1 transmissions on the A

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

channels

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Rear

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Subrack——GMPS(BM/TC combined)

=+

BM/TC seperated BM/TC combined


Subrack——GMPS(BM/TC combined)

When non-IP boards are used on the A interface, the fully

configured GMPS is shown in the below

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Backplane

Front

board

Rear

board

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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 with

the GGCU and GOMU

A fully configured GEPS can support 768 TRXs


Subrack——GEPS(BM/TC separated)

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GXP

U

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GSC

U

GSC

U

GTNU

GTNU

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EIU

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Rearboard

Backplane

Front

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Subrack——GEPS(BM/TC combined)

When non-IP boards are used on the A interface, full GEPS

configuration is shown in the below

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Rearboard

Backplane

Front

board


Board- GGCU Configured in slots 12 and 13 in the GMPS (active/standby mode)

provides synchronous timing signals for the system

Generates and retains the synchronous clock signals

Keeps the consistency of synchronization information output from

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 stream

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


connector

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

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 subrack

except the GGCU in the GMPS


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


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 T0-3 GE/FE Ethernet port, reserved RJ45


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Backplane

Board CPU Number Function

GXPUM

CPU0CPU0,algorithm,resource management，PS signal

processing

CPU3 CPUP,PCU maintenance、cell data broadcast

CPU1

CPU2

GXPUT CPU0/1/2/3

CPUX ,CS service processing

CPU-XPUa


Board- GDPUC/X

Indicator Color Status Meaning

RUN Green

On for one second and off for

one secondThe board is working normally

On for 0.125 second and off

for 0.125 secondThe board is in loading state

On for 2 seconds and off for 2

secondsThe 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- 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

function

GDPUP provide 1024 PDCH channel

processing(MCS-9)

Automatically detects packet data faults


Board——GOMU

LED Color Status Description

RUN Green On for 1s and off for 1s The 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 board

Steady off There is no alarm

ACT Green Steady on The board works in active mode

Steady off The board works in standby mode

OFFLINE Blue On The board can be removed

Off 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

categorized 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 0-1

2.048 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)

protocols (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 0-1

2.048 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


ON OFF


ON OFF


ON OFF

There are DIP switches on GEIU, the default setting is to support 75Ω


Contents







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

The Time Division Multiplexing (TDM) switching subsystem

provides circuit switched domain (CS) switching for the system

The TDM switching subsystem consists of the GTNU, GDPUX,

interface boards, backplane in the subrack, and interconnected

cables between subracks.

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

the 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

Subrack 1

Subrack 2

Subrack 4

Subrack 3


GTNU Crossover Ethernet Cable

Pin12

W1 W3

W2 W4

1

B

B

X4

X3X1

X2

A

A

Pin14

Pin1 Pin14

3


Inter-Subrack Interconnections

The right figure

shows 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


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

provides GE switching for the other boards in the same subrack

GSCU (active) GSCU (standby)

Board Board Board………

Intra-Subrack Connection


GE Switching Unit

Inter-subrack GE switching: star interconnection through

crossover networks

GEPS

GEPS GMPS

GEPS

GTCS

GTCS

GTCS

GTCS


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

GDPUX board and GDPUP board

The number of configured GDPUPs

and the number of configured

GDPUXs depend on the traffic

volume of CS services and PS

services

Works in resource pool mode


CS Service Processing Subsystem

The GDPUX processes CS services. In different

configuration modes of the BSC subracks, the GDPUX

performs different functions:

In BM/TC separated configuration mode, the GDPUX configured in

the GMPS/GEPS performs IP packet-TRAU conversion and

forwarding; the GDPUX configured in the GTCS performs voice

coding/decoding and rate matching

In BM/TC combined configuration mode, the GDPUX performs IP

packet-TRAU conversion, voice coding/decoding, and rate matching


CS Service Processing Subsystem

The following takes the transmission of CS traffic signals

from the BSC to the MGW as an example. When IP

transmission is used on both the Abis interface and the A

interface, the CS DSP module processes traffic signals as

follows:


PS Service Processing Subsystem

The GDPUP processes PS services

When the HDLC transmission or IP transmission is

used on the Abis interface, the external PCU cannot be

used. In other words, the BSC must be configured with

the GDPUP to process PS services


PS Service Processing Subsystem

The following takes the transmission of PS signals from the

BSC to the SGSN as an example. When IP transmission is

used on the Abis interface and on the Gb interface, the

service processing procedure of the PS DSP module is as

follows:


Service Control Subsystem

The components of the BSC service control subsystem are

as follows:

GXPUM and GXPUT configured in the GMPS/GEPS

GBAM/GOMU

GSCU configured in the GTCS


Interface Processing Subsystem

Physically the BSC interface processing subsystem consists of the

interface boards and the GXPUM.

Logically, the BSC interface processing subsystem consists of the

following units: Abis interface processing unit, A interface processing unit,

Ater interface processing unit, Pb interface processing unit, Gb interface

processing unit, and Cb interface processing unit.


Interface Processing Subsystem

Traffic Processing

GEIUB/GOIUB supports 256 TRXs

GEIUTsupports 3840 speech channels

GOIUT supports 7168 speech channels

GEIUP/GOIUP supports 3840 16Kbps PCICs

GEIUA supports 960 speech channels

GOIUA supports 1920 speech channels


Clock Subsystem

The BSC clock subsystem consists of the GGCU and the

clock processing units in each subrack.

The clock subsystem provides working clock for the BSC

and the reference clock for the BTS.

The BSC can use two clock sources:

BITS clock and line clock

Each clock source either has one backup source or does not

have any backup


BSC Clock Synchronization


BSC Clock Synchronization (TC)


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







Contents


4.1 BSC CS Signal Flow

4.2 BSC PS Signal Flow

4.3 BSC Signaling Flow

4.4 BSC OM Signal Flow

4.5 BSC Alarm Channel


CS Service Signal Flow (BM/TC separated)

Ater

A

Abis

BTSMS

MSC

G

E

I

U

B

G

T

N

U

G

E

I

U

T

GMPS/GEPS

G

E

I

U

T

G

T

N

U

G

E

I

U

A

GTCS

G

D

P

U

X

Abis over TDM+A over TDM

Front board E1/T1 cable

TDM switching on

the backplane Rear board


CS Service Signal Flow (BM/TC combined)

Abis over TDM+A over TDM

A

Abis

BTSMS

MSC

G

E

I

U

B

GMPS/GEPS

G

T

N

U

G

E

I

U

A

G

D

P

U

X

A Board is GEIUA/GOIUA

Abis Board is GEIUB/GOIUB

Backplane GE Switching

Backplane TDM Switching

E1/T1 cableFront Board

Rear Board


Packet Service Signal Flow

(Built-in PCU,BM/TC combined) Abis Over TDM

GbAbis

BTSMS

G

E

I

U

B

G

T

N

U

G

E

P

U

G

GMPS/GEPS

SGSN

G

S

C

U

G

D

P

U

P

Gb Board is GFGUG/GEPUG




Rear Board


Packet Service Signal Flow

(external PCU) When Abis interface is over HDLC/IP, BSC6000 doesn’t

support external PCU

Abis Over TDM

Pb GbAbis

BTSMS

PCU

G

E

I

U

B

G

T

N

U

G

E

I

U

P

GMPS/GEPS

SGSN




Rear Board


Abis Interface Signal (BM/TC combined)

Abis over TDM

Abis

BTSMS

G

S

C

U

GMPS/GEPS

G

X

P

U

M


TDM switching on


G

E

I

U

B


SS7 on the A Interface (BM/TC

separated A over TDM

The signals are processed through the MTP2, and

then sent to the GXPUM in the mode of internal

signaling flow

Ater

AMSC

G

S

C

U

G

E

I

U

T

GMPS/GEPS

G

E

I

U

T

G

T

N

U

G

E

I

U

A

GTCS

G

X

P

U

M


TDM switching on



SS7 Signal Flow (BM/TC combined )

A over TDMThrough the processing of MTP2 model, it

will be transmitted to GXPUM as intra-signal;

A MSC

G

S

C

U

GMPS/GEPS

G

E

I

U

A

G

X

P

U

M




Rear Board


Gb Signal Flow

Gb

G

S

C

U

G

E

P

U

G

GMPS/GEPS

SGSN

G

X

P

U

M

Gb board should be GFGUG/GEPUG




Rear Board


O&M Flow (Local GTCS,BM/TC

separated)

G

S

C

U

GE on the backplane

Inter-subrack Cable

GMPS

Se

rvic

e b

oa

rdGEPS GTCS

G

S

C

U

G

S

C

U

Se

rvic

e b

oa

rd

Se

rvic

e b

oa

rd

Main GTCS

GSCU

Se

rvic

e b

oa

rd

G

O

M

U

L

M

T


O&M Flow(Remote GTCS,BM/TC

separated)

GEPS GTCS

Main GTCSGMPS

EIUT

G

O

M

U

G

S

C

U

E

I

U

T

GSCU

G

S

C

U

G

S

C

U

GE on the

backplane

HDLC

Inter-subrack Cable

Se

rvic

e b

oa

rd

Se

rvic

e b

oa

rdS

erv

ice

bo

ard

Se

rvic

e b

oa

rd

L

M

T


Operation Maintenance Flow

(BM/TC combined)

G

S

C

U

GMPS

G

S

C

U

L

M

T

Service

Board

GEPS

O

M

U

Hardware is

GBAM/GOMU

Service

Board



E1/T1 cable


Connection of Alarm Box

Connection scheme

Alarm

management

module

GOMUAlarm box

Convert

Management

System

LMT

Serial Cable


Report of Alarm from Local Subrack

GMPS

GSCUGOMU

LMT

ConvertAlarm box

GEPS

GSCU

Service

board

Service

board

Generate/Shield

AlarmsReport Alarms

Send Alarms

&Record logs

Output Alarms &Drive

Alarm box

Generate Sounds&Lights

BTS


Report of Alarm from Remote Subrack

GMPS

GEIUT

GOMULMT

ConvertAlarm box

GTCS

GEIUT

Service

board

Service

board

GSCU

GSCU

HDLCLink


Contents







Hardware configuration Principle

Service processing boards

Single GDPUX/GDPUC supplies 960 voice circuits coding/decoding

(960(FR) at most), 960(HR) at most), GDPUX/ GDPUC work as

resource pool in subrack

DPUX supports 3740 voice circuits frame conversion or transmission

between TRAU/IP/HDLC and TRAU

Single GDPUP supplies 1024 MCS-9 PDCH channel of processing

packet service, supports 1024 cells at most, GDPUP is resource pool

of whole system and could be inserted in rear slots

Number of GDPUP+GDPUX+GDPUC couldn’t be more than 10


Hardware configuration Principle

GXPUM/GXPUT

GXPUM must be inserted in 0&1 slots of GMPS/GEPS fixedly;

GXPUT is inserted in 2&3 slots of GMPS/GEPS by requirement, when

the TRX of current subrack is less than 256, GXPUT may not be

configured, if needs, it’s certainly

Interface Specification

Abis: GEIUB/GOIUB support 256TRX(HR)at most, GEHUB

GFGUB/GOGUB also support 384TRX(HR)at most

A: GOIUA/GEIUA are configured 5 groups per subrack at most, if A

interface uses optical transport, single subrack could access 9600 CIC

at most


Typical Configuration — 512TRX

(BM/TC separated) Built-in PCU



(BM/TC separated) 1GMPS+1GEPS+2GTCS, built-in PCU



(BM/TC separated) External PCU

Built-in GOMU

GOIUA is the A interface

board



(BM/TC separated) Built-in PCU

Built-in GOMU

GOIUA is the A

interface board



(BM/TC combined) built-in PCU，A interface uses

STM-1 as transport model,

Abis interface uses E1/T1 as

transport model, supports

512TRX at most.



(BM/TC combined)


Typical Configuration —

2048TRX (BM/TC combined)


Scene One

TC/BM combination or separation

=+

BM/TC

separatedBM/TC

combined

How to choose TC/BM

combination or

separation？


Scene Two

How to choose built-in PCU？

What time we will

choose built-in

PCU？

14 15 16 17 18 19 20 21 22 23 24 25 26 27

G

O

I

U

A

G

O

I

U

A

G

O

I

U

A

G

O

I

U

A

G

E

P

U

G

G

E

P

U

G

G

E

I

U

B

G

E

I

U

B

G

E

I

U

B

G

E

I

U

B

G

X

P

U

M

G

X

P

U

M

G

X

P

U

T

G

X

P

U

T

G

T

N

U

G

T

N

U

G

S

C

U

G

S

C

U

G

D

P

U

P

G

D

P

U

X

G

D

P

U

X

G

D

P

U

X

G

G

C

U

G

G

C

U

0 1 2 3 4 5 6 7 8 9 10 11 12 13

GOMU GOMU


Summary

Introduce features and functions of BSC6000

Describe components and functions of racks, subracks and

boards in BSC6000

Describe functions of logical structure and cable

connections in every logical part

List configuration principles and typical configurations

Thank youwww.huawei.com

Documents

OMD801101 BSC6000 Hardware Structure ISSUE1