001 zxg10 ibsc description 84

GBC_021_E1_1ZXG10-iBSC Description

ZTE University

GSM-BSS Team

OBJECTIVES

To understand the parts and functions of ZXG1

0-iBSC

To discover important features and technologie

s of ZXG10-iBSC

To understand iBSC configuration and

networking

Contents

iBSC Overview

iBSC shelves and boards

iBSC interface unit

iBSC cable connection

iBSC configuration and networking

iBSC Solution

Support 2G and 3G MS core network by A/Gb or Iu mode

GSM/UMTSCore Network

GERAN

Gb

A

Iu

MSUm

Iur-g

BSC

BTS

BTS

BSS

BSS

MS

Iur-g

UTRANRNC

iBSC Overview

Position of ibsc in the network

SGSN GGSN

NodeB

RNC

NodeB

BTS

BSC

BTS

MSC/VLR or MSCS/VLR GMSC

Inter-PLMN

PSTN

MGW GMGW

Gb

IuPs

IuCs

A

IuCs

Mc

Nb

Nc

IuPs

Iur-g

iBSC Overview

iBSC Feature

All IP hardware platform

High capacity and strong proces

sing capability

Modulization, easy capacity exp

ansion

Flexible networking mode

High reliability All IP

platformModulization Easy

expansion

iBSC hardware platform

iBSC Overview

Compatibility

High reliability

High integration and low pow

er consumption

Flexible networking mode

Modulization, easy capacity

expansion

Standard A interface

High capacity and strong pro

cessing capability

All IP hardware platform

GSM / WCDMA

NGN

TD-SCDMA

CDMA 2000

Totally 10 boards

iBSC capacity

Traffic supported ( two racks):15000Erl ， BHCA 4200K

1 rack 2 rack

TRX supported 1024 3072

Gb:dataflow/Mbps 32M/A:use 32M

fiber

96M/A:160M

fiber

Abis:E1 supported 208 624

A: E1/STM-1 224/4 672/12

iBSC Overview

System Functions

Supports GSM 900, GSM 850, GSM 1800 and GSM 1900

network.

Supports the base station management functions in the

standard. It can manage the hybrid access of ZXG10 BTS

series products.

Connects with OMC by foreground/background interface

to realize the operation and maintenance management of

BSS.

Supports various types of services.

iBSC Overview

Interface Indices

A-interface uses the following media:

1. E1 Link

2. STM-1 Link

3. FE Link

Abis-interface

E1 Link

Fast Ethernet link

iBSC Overview

Capacity Indices

Index Maximum Capacity

A-InterfaceE1 672

STM-1 12

Abis Interface

E1 624

FE + E1 12 FE + 312 E1

FE 12

Gb-InterfaceA-interface E1 96 Mbps

A-interface STM-1 160 Mbps

No. of No.7 link64 kbit/s link 16

2M No.7 link 2

No. of Carriers 3072

No. of Sites 1536

iBSC Overview

Bords

Board Name Functions Board Function NameCorresponding Back

Board

BIPI Provide FE interface for iBSC system, there are 4 FE interfaces on each BIPI.IPBB,IPAB,IPGB

RMNIC

CHUBCHUB and UIMC/UIMU together control the exchange and convergence of the

system internal control plane data.CHUB

RCHB1,RCHB2

CLKG Implement the clock function of iBSC system. CLKGRCKG1,RCKG2

CMPImplement the service call control management in PS/CS domain, the resource

management in sub-layer, such as BSSAP, BSSGP, and system itself.CMP -

DTB Each DTB provides 32 E1 interfaces. DTB RDTB

GLIProvide interface and processing function for the interconnection of each resource

shelf.GLI -

GUP Realize the Abis interface processing, transcoding and rate adaptation.BIPBDRTB

-

OMPImplement the system global processing, provide an external FE interface and iOMC

R connection; monitor and manage the boards in the system directly or indirectly.

OMP RMPB

PSN Implement the exchange of user plane data with large capacity. PSN -

SDTB Provide a standard 155M STM-1 interface. SDTB RGIM1

SPB Implement the signal processing and external interface function.SPB,GIPB,LAPD

RSPB

SVRStore some files needed by OMP, and organize these files according to the

requirement of OMC.SVR RSVB

UIMC Provide switching plane for control shelf and packet switching unit shelf. UIMCRUIM2,RUIM3

UIMU Provide internal platform for resource shelf. UIMU RUIM1

UPPBImplement the PS service processing in A/Gb mode and user plane service processin

g in Iu mode.UPPB -

iBSC Overview

Cabinet Structure

1. Back Door

2. Busbar

3. Cover Plate

4. Filter

5. Fiber Winding Tray

6. Service Shelf

7. Front Door

8. Grounding Copper Busbar

9. Rack

10.Installation Base

iBSC Overview

Physical Feature

ZXG10 iBSC（ V6.00） is High Capacity Base Stati

on Controller

Rack Size(HxWxD)=2000mm x 600mm x 800mm

DC Input = -48 V DC

DC Range = -40V ~ -57V

Power Consumption of Full Configured Single Cabi

net = 2200W

Power Consumption of Full Configured Dual Cabin

et = 5200W

Relative Humidity = 20% ~ 90%

Operating Temperature = 0C ~ 40C

iBSC Overview

Cabinet Structure (2)

iBSC Overview

Single Rack Configuration

iBSC Overview

Shelf type Shelf Function

Control shelf

Implements global operation and maintenance functions, global clock function, control plane processing, and control plane switching and Ethernet

Resource shelf

Implements system access, and forms all general service subsystems

Switching shelf

Provides a switch platform of large capacity and little congestion

Dual Rack Configuration

iBSC Overview

Hardware System Diagram

iBSC Overview

Contents

iBSC Overview


iBSC interface unit



Hardware Rack

BCTC

BUSN

BPSN

BCSN

（ BCTC） which manages and controls the whole system,

processes control plane signaling, and provides a global cl

ock and external synchronization function.

(BUSN) holds different types of service processing boards

and forms various general service processing subsystems.

（ BPSN） provides necessary message transmission ch

annel to fulfill different kinds of data interaction in PS

（ BCSN） provides necessary message to fulfill different

kinds of data interaction based on CS for big T network sit

uation


Classification of iBSC

BUSNBUSN

BCTC

BPSN


Backplane


Shelf Backplane

Switching shelf Backplane of packet switching network (BPSN)

Control shelf Backplane of control center (BCTC)

Resource shelf Backplane of universal service network (BUSN)

Single Rack Configuration

Shelf type Shelf Function

Control shelf

Implements global operation and maintenance functions, global clock function, control plane processing, and control plane switching and Ethernet

Resource shelf

Implements system access, and forms all general service subsystems

Switching shelf

Provides a switch platform of large capacity and little congestion


Switching Shelf (1)

Switching shelf provides necessa

ry message transmission channel

to fulfill different kinds of data int

eraction such as timing, signaling,

voice service, and data service b

etween various functional entities

inside and outside the ZXG10 iBS

C system.


Board Rear board Backplane

PSN -

BPSN

GLI -

UIMC

UIM2 (RUIM2)

UIM3 (RUIM3)

Switching Shelf (2)


Principle of Switching Shelf (3)


Backplane of Packet Switching Shelf (BPSN)

Signal interaction between shelves

All resource shelves connect with GLI on the switching shelf via the

optical interface on the front panel of UIMU.

The control shelf connects with UIMC on the switching shelf via

RCHB1 and RCHB2 (rear board of CHUB).

Clock signals connect with UIMC on the switching shelf via RCKG1

and RCKG2 (rear board of CLKG).


Control Shelf (1)


Control Shelf (2)


Board Rear Board Backplane

OMP MPB rear board (RMPB)

BCTC

CMP -

UIMCUIM rear board 2 (RUIM2)

UIM rear board 3 (RUIM3)

CHUBCHUB rear board 1 (RCHB1)

CHUB rear board 2 (RCHB2)

CLKGCLKG rear board 1 (RCKG1)

CLKG rear board 2 (RCKG2)

SVR SVR rear board (RSVB)

Principle of Control Shelf (3)


Resource Shelf (1)


Resource Shelf (2)


Board Rear Board Backplane

DTB RDTB

BUSN

SDTB RGIM1

UIMU UIMU1 (RUIM1)

GUP -

BIPI MNIC (RMNIC)

SPB SPB (RSPB)

UPPB -

OMP MPB (RMPB)

CMP -

Principle of Resource Shelf (3)


Function of BUSN

Inter-shelf signal interaction

UIMU provides the control Ethernet channel to connect external resource

shelves. UIMU connects with CHUB (the gathering center of the control flows

from the control shelves).

DTB, SPB provide the interface for E1 line.

SDTB provides STM-1 access.

BIPI provides FE access.

CLKG of the control shelf distributes system clock via the cable.

UIMU is the gathering and switching center of various data of resource shelf,

implementing the information exchange between modules.

GUP implements code transformation, rate adaptation and the conversion from

TDM to IP packets.

Boards (1)


Boards (2)


Boards (3)


Boards (4)


Indicators

Indicator Name Color Meaning Description

RUN GreenRunning

indicator

ALM Red Alarm indicator

ENUM Yellow

Board

extraction

indicator

Always ON: indicates that tact switch has been

opened; the board has not been inserted properly;

the version has not been downloaded

Flashing at 5 Hz (fast): indicates that there is an

alarm for tact switch; tack switch has been opened

while the board is running

Flashing at 1 Hz (slow): indicates that the board can

be pulled out; tack switch has been opened while the

board is running; the board can be pulled out when in

standby status

Always OFF: indicates that tact switch is normal

ACT GreenActive/standby

indicator

ON: indicates the board is active

OFF: indicates the board is standby


Boards names

NO Board English PCB

1 DTB Digital Trunk Board DTB

2 SPB Signaling Processing Board SPB

3 BIPI BSC IP Interface board MNIC/2

4 SDTB Sonet Digital Trunk Board SDTB

5 GLI Gigabit Line Interface GLIQV

6 GUP GSM Universal Processing board VTCD

7 UPPB User plane Processing Board VTCD

8 CMP Control Main Processor MPX86/2

9 OMP Operation Main Processor MPX86/2


Boards names

10 SVR SerVeR board CIB

11 PSN Packet Switch Network PSN4V

12 CHUB Control HUB CHUB

13 CLKG CLOCK Generator CLKG

14 UIMU_C Universal Interface Module for User plane UIM/2

15 UIMCUniversal Interface Module for Control plane（ BCTC o

r BPSN）UIM/2

16 BCTC Backplane of ConTrol Center BCTC

17 BPSN Backplane of Packet Switch Network BPSN

18 BUSN Backplane of Universal Switch Network BUSN

19 RDTB Rear board of DTB RDTB/2

20 RSPB Rear board of SPB RSPB/2

21 RMNIC Rear board of MNIC RGIM1


Boards names

22 RGIM1 Rear General Interface Moudle 1 RGIM1

23 RMPB Rear board of OMP RGIM1

24 RSVB Rear board of Server RSVB

25 RCHB1 Rear board 1 of CHUB RCHB

26 RCHB2 Rear board 2 of CHUB RCHB

27 RCKG1 Rear board 1 of CLKG RCKG1

28 RCKG2 Rear board 2 of CLKG RCKG2

29 RUIM1 Rear board 1 of UIM RUIM




Contents

iBSC Overview


iBSC interface unit



External Interfaces

MSC

BTS

iBSC

SGSN

Abis口

MSC

BTS iOMCR

AI nterface

Abi sI nterface

Abi sI nterface

AI nterface

GbI nterface

Foreground/ BackgroundI nterface

iBSC interface unit

iBSC External Connections

iBSC interface unit

Signalling way

iBSC interface unit

A Interface

A Interface uses the following media

E1 Link

STM-1 Link

FE Link

iBSC interface unit

Gb Interface

Gb Interface uses the following media

E1 Link

FE Link

iBSC interface unit

Abis Interface

Abis Interface uses the following media

E1 Link

FE Link

iBSC interface unit

Abis Interface Unit (BIU)

Abis Interface Unit (BIU)

E1 Abis interface

内部以太网E1/T1 HW

DTB

GUP

12

32

用户面交换网

控制面交换网

BIU

SPB

LAPD

E1 Abis

本层UIM T网

User plane switching network

Control plane switching network

UIMU

Interanal Ethernet

To TCU or UPU

To CMP

iBSC interface unit

A Interface Unit (AIU)

内部以太网E1/T1 HW

GU

P

1

2

32

DTB

SPB

TCU

MTP2

1

2

16

AIU

STM-1

本层UIM 上T网或大T网

控制面交换网

用户面交换网

User plane switching network

Control plane switching network

Interanal Ethernet

T network on local layer UIM or large

T network

When use SDTB

substitutes DTB, All E1

trunks in diagram are not

existent. Each SDTB

provide an 155 Mega bps

STM-1 interface connect to

MSC.

Capacity of one STM-1

trunk equal to 63 E1 trunks

iBSC interface unit

Gb Interface Unit (GIU)

E1 interface (UPPB + SPB)

PCU frame from Abis interface is sent to PCU by PSU. UP

PB implements BSSGP and RLC/MAC processing. SPB co

mplete process of FR protocol and provide E1 interface.

FE interface (UPPB + BIPI)

BIPI do the same protocol processing function like SPB and

provide FE interface.

Each SPB provide 16 E1 trunks, Each BIPI provide 4 FE,

the capacity of one BIPI equals to two SPB.

iBSC interface unit

User Plane Data Flow in CS Domain

BIU

用户面交换网Abis口

AIUA口

PCUGb口

控制面交换网

CMP OMP

UPPB TCU

1

2

Abi sI nterface

AI nterface

GbI nterface

User Pl aneSwi tchi ng Network

Control Pl aneSwi tchi ng Network

iBSC interface unit

User Plane Data Flow in PS Domain

BIU


AIUA口

PCUGb口

1

控制面交换网

CMP OMP

UPPB TCU

2Abi s

I nterface

AI nterface

GbI nterface



iBSC interface unit

Control Plane Data Flow in CS Domain

BIU


AIUA口

PCUGb口

1

2

控制面交换网

CMP OMP

3

UPPB TCU

Abi sI nterface

AI nterface

GbI nterface



iBSC interface unit

Control Plane Data Flow in PS Domain

BIU


AIUA口

PCUGb口

1

4

控制面交换网

CMP OMP

6

UPPB TCU

2

35

Abi sI nterface



AI nterface

GbI nterface

iBSC interface unit

Contents

iBSC Overview


iBSC interface unit



Internal Connections

Internal connections include the following types of

connections

Clock distributions

Control plane connections

User plane connections

Monitoring circuit connections


Clock Distribution inside Cabinet


Clock Distribution of Combined Cabinets


Control Plane Connections inside Cabinet


Control Plane Connections of Combined Cabinets


User Plane Connections inside cabinet


User Plane Connections of Combined Cabinets


Monitoring Circuit Connections inside cabinet


Monitoring Circuit Connections of Combined Cabinets


IP Switching

provides an large capacity and non-block IP switching network for system

control & management, communication between service boards and data

exchange among access units.

Level 1 : 40Gbps capacity, GLI, PSN

Level 2: UIMC, UIMU, CHUB

2× Gi gabi t Ethernet

Megabi t

Ethernet

Level 1 switching subsystem




Megabi t

Ethernet


System Clock Signal Flow


Contents

iBSC Overview


iBSC interface unit



RCBU Configuration (Abis is E1， A is E1)


BIU GIU AIU TCU

Single Rack Configuration (Abis is E1， A is E1)


Dual Rack Configuration (Abis is E1， A is E1)


Abis Interface Networking Modes (1)

Using E1 for Transmission

Star Networking

Chain Networking

SITE0iBSC SITE1 SITE2




Tree Networking

Ring Networking

iBSC

SITE0

SITE1

SITE2

SITEn

.

.

.



Using IP for Transmission

MS

ADSL MODEM

ADSL MODEM

MSxDSL接入设备

MS

MS

MS

MS

Site1

Site2

MS

iBSC

ZTE

宏蜂窝基站

INTERNET公网

Intranet企业网

微蜂窝基站

微蜂窝基站

微蜂窝基站

微蜂窝基站

微蜂窝基站

Mi cro Cel l BTS

Macro Cel l BTS

Mi cro Cel l BTS

Mi cro Cel l BTS

Mi cro Cel l BTS

Mi cro Cel l BTS

I ntranetEnterpri se Network

I nternet Publ i cNetwork

xDSL Access Devi ce


A Interface Networking Mode


iBSC TC

A接口

MSC

A I nterface


Local Maintenance Networking Mode


Remote PCM Mode Networking


Remote X.25 Mode Networking


Remote DDN Mode Networking


GSM OMCRV3

LAN

Client V3 OMM

iBSC

LAN

V3 OMM

iBSC

LAN

V3 OMMiBSC

WAN

Client

Client

NetNumen M32 Server


GSM OMCRV2， V3 mixed network

LANHub/Switch

V2 ServerBSCV2

WAN

Hub/Switch

BSC V2

V2 Client

V2 Client

LAN

V3 OMMiBSCV3 Client

LAN

V3 OMMiBSC V3 Client

NetNumen M32 Server


001 zxg10 ibsc description 84

Documents

ibsc overview bordsboard

ibsc overview system

clock function of ibsc

interface stm

interface e1 stm

abis interface processing

interface e1 maximum

e1 abis interface fe