110117_B4.1.1.6 ZXG10 iBSC Product Description_ZTE.docx

ZXG10 iBSC

Product Description

ZXG10 iBSC Product Description


Version Date Author Approved By Remarks

V8.0.1 2009-04-08 Not open to the Third Party

V8.0.2 2010-02-05 Not open to the Third Party

ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. I

© 2010 ZTE Corporation. All rights reserved.

ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or used without the prior written permission of ZTE.

Due to update and improvement of ZTE products and technologies, information in this document is subjected to change without notice.


TABLE OF CONTENTS

1 Overview....................................................................................................................1

2 Highlight Features.....................................................................................................22.1 ALL IP architecture, meet IP evolution trend...............................................................22.2 Powerful processing capability, room saving, TCO reducing......................................22.3 Flexible network building, support many kinds of networking demand........................22.4 Smooth evolution, easy operation and maintenance, OPEX saving...........................22.5 Support the largest TC Pool, transmission saving......................................................2

3 Functionality..............................................................................................................33.1 Service Functions....................................................................................................3

4 System Architecture.................................................................................................44.1 Product Physical Structure..........................................................................................44.2 Hardware Architecture................................................................................................54.2.1 Function Units of ZXG10 iBSC...................................................................................54.2.2 Modules of ZXG10 iBSC.............................................................................................64.3 Software Architecture..................................................................................................64.4 OMM Module..............................................................................................................8

5 Technical Specifications...........................................................................................95.1 Physical Indices..........................................................................................................95.1.1 Mechanical Dimensions..............................................................................................95.1.2 Weight......................................................................................................................... 95.1.3 Color........................................................................................................................... 95.2 Capacity...................................................................................................................... 95.3 Power.......................................................................................................................... 95.3.1 Power Requirements..................................................................................................95.3.2 Power Consumption..................................................................................................105.4 Transmission............................................................................................................105.4.1 A interface and Abis interface...................................................................................105.4.2 Ater interface............................................................................................................115.4.3 Gb interface throughout............................................................................................115.5 Working Environment................................................................................................115.5.1 Working Environment................................................................................................115.5.2 Storage Environment................................................................................................115.5.3 Anti-Earthquake Level...............................................................................................115.6 Environmental Classes.............................................................................................125.6.1 Electromagnetic Compatibility (EMC).......................................................................125.6.2 External Alarms.........................................................................................................135.6.3 Noise Level...............................................................................................................135.7 Reliability..................................................................................................................13

6 Configuration Instructions.....................................................................................146.1 Configuration 1: One rack with all IP.........................................................................146.2 Configuration 2: Two Racks with TDM......................................................................14

7 Acronyms and Abbreviations.................................................................................16

II © 2010 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary


FIGURES

Figure 1 ZXG10 iBSC................................................................................................................. 4Figure 2 ZXG10 iBSC Hardware Structure.................................................................................5Figure 3 Software Structure of ZXG10 iBSC...............................................................................7Figure 4 One rack with all IP configuration of ZXG10 iBSC......................................................14Figure 5 Two racks with TDM configuration of ZXG10 iBSC.....................................................15

TABLES

Table 1 Capacity of iBSC...........................................................................................................9Table 2 Capability of A interface and Abis interface.................................................................10Table 3 Ater interface (independent TC)..................................................................................11Table 4 Gb interface throughout..............................................................................................11Table 5 Conducted emission suppression of the power port...................................................12Table 6 Whole-system radiated emission suppression............................................................12Table 7 Abbreviation List.........................................................................................................16

ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. III


1 OverviewZTE GSM BSS family inherits the idea of 3G construction, adapting all IP hardware structure, modularized design and distributed idea.

ZXG10 iBSC is designed especially for high-speed integrated network. All-IP hardware structure accords with IP RAN evolution, high integration and intelligent design could cut down CAPEX and make maintenance more conveniently.

Meaning of the “i” in ZXG10 iBSC is:

i-intelligent: intelligent identification of wireless access, intelligent error self-correction, high reliability design;

i-integration: highly integrated, integrates multi-wireless-control functions, integrates multi-interfaces E1/T1/STM-1/IP, multi transmission supported

i-IP: all IP platform, accords with trend of network IP evolution, supports IP bearer

i-immensity: large capability, Supporting 3072 TRX and 15000 Erl with only two racks.

i-intensify: intensified design, supports FR/EFR/HR/AMR/WB-AMR full series coding scheme, including innovative NetSpeed wireless enhanced technology

ZTE Confidential Proprietary © 2009 ZTE Corporation. All rights reserved. 1


2 Highlight Features

2.1 ALL IP architecture, meet IP evolution trend

iBSC, CN and 3G RNC share the universal All IP hardware platform

IP kernel, IP interface, IP service

2.2 Powerful processing capability, room saving, TCO reducing

Largest capacity, 2048TRX/cabinet, max 3072 TRX supported.

Highest integration, one cabinet can support 15,000 Erl.

Room saving, power consumption saving and Lower TCO.

2.3 Flexible network building, support many kinds of networking demand

Support E1/T1/STM-1/IP interface, flexible networking.

2.4 Smooth evolution, easy operation and maintenance, OPEX saving

Intelligent design to evolve to RNC, software upgrading needs only, easy operation and maintenance.

2.5 Support the largest TC Pool, transmission saving

TC Pool can support 6144 TRX, 50,400 TCH，16 iBSC.

2 © 2010 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary


3 FunctionalityZXG10 iBSC is a customer requirement oriented, the most powerful BSC based on all IP in industry. It provides Abis interface with mobile station, processes A interface with NSS and Gb interface with GSM. It connects and controls many BTS to carry out Call Control and Mobility Management such as handover, Location Register and so on.

Furthermore, ZXG10 iBSC supports TC function through two modes: intergrated TC and independent TC. Also it can be used in TC pool mode.

ZXG10 iBSC supports flexible transmission styles, provides various interfaces, such as E1, T1, STM-1, FE/GE, microwave, VSAT and satisfying different scenarios.

ZXG10 iBSC is based on all IP platform, following industry technology trend, with stronger capability to support data services and new functions. In long term view, ZXG10 iBSC can meet with the requirements of evolution and development of GERAN network in the future.

The basic functions of ZXG10 iBSC include:

Implement Call Control and Mobility Management for voice and data service.

Satisfy requirements of GERAN networking, provide Abis interface and standard A and Gb interface, at the same time ZXG10 iBSC supports other standard interfaces such as Lb interface.

3.1 Service Functions

1) Circuit-switched data service

Full-rate voice service

Enhanced full-rate voice service

Half rate voice service

AMR voice service

2) Circuit-switched data service

9.6k bit/s full-rate data service

3) GPRS/EDGE service

Fully support GPRS(CS-1 to CS-4) and EGPRS(MCS1 to MCS9)

As ZXG10 iBSC is designed with so comprehensive and powerful function, all the features supported is divided into basic features and optional features in appendix. More information is described in documents ZXG10 BSS Basic Feature List and ZXG10 BSS Optional Feature List accordingly.



4 System Architecture

4.1 Product Physical Structure

ZXG10 iBSC is following industry technology trend designed by modularization. Also it has stronger capability to support data services and new functions because of its high integration. In long term view, ZXG10 iBSC can meet with the requirements of evolution and development of RAN network in the future. A rack of ZXG10 iBSC consists of four shelves, each one is made up by 17 boards. A typical configuration is shown in following figure, three kinds of configuration modules are mainly included: BCTC、BGSN、BPSN.



Figure 1 ZXG10 iBSC

4.2 Hardware Architecture

Figure 2 ZXG10 iBSC Hardware Structure

4.2.1 Function Units of ZXG10 iBSC

ZXG10 iBSC hardware structure consists of the following five units:

O&M Unit :

O&M Unit supports the global processing and implements O&M control (including O&M agent) of the entire system as well as system clock supply and external synchronization.

iBSC Access Unit:

Access Unit provides access implementation for A, Abis, Gb interfaces.

AIU/BIU is configured with the specified interface boards that can achieve customized transmission solution. The DTB is used to layout E1/T1 transmission in A/Abis interface. The GIPI provides GE to serve Abis over IP and EIPI to provide IPoE to serve Abis over IP. The SDTB and SDTB2 in AIU provide the STM-1 interface for A interface. GIU is dedicated to support various interface demands for Gb interface. The SPB2 and GIPI are used to provide E1 and GE transmission accordingly.

Switch Unit:

Switch Unit provides a large-capacity and non-blocking switching unit for system control management, communication between service processing boards and traffic connection among multiple Access Units.

Processing Unit:



Processing Unit processes control plane signalling and user plane information, including voice, data and stream.

In order to ease higher traffic, ZXG10 iBSC uses high integration GUP2 boards for signal processing. TCU is made up with codec operation module related with the performance index. PCU is now divided into GIU (Gb Interface Unit) and UPU (User Plane Unit) in physical units. UPU is dedicated for RLC/MAC protocol operation and part of BSSGP protocol.

Peripheral Monitoring Unit:

Provide monitoring functions using peripheral detectors such as smoke, temperature, humidity, voltage, water, infrared, intruder and fan etc.

4.2.2 Modules of ZXG10 iBSC

ZXG10 iBSC is mainly consists of three modules in hardware configuration, including: BCTC (Control-layer Shelf), BPSN (Packet switching Shelf), and BGSN (Giga Universal Service Shelf).

BGSN

BGSN is made up with AIU, BIU, PCU, and TCU, for interface accessing and user plane data processing.

BCTC

In BCTC, there are centralized all critical control module, including OMP (Operation and Maintenance Main Processor) which is used for controlling and managing whole BSC system, CMP (Control Main Processor) is used for service implementing and call controlling. The entire system synchronization is maintained by CLKG (CLOCK Generator) or ICM (with GPS receiver), and CHUB (Control HUB) provides central hub function to collect signalling from individual BGSN.

BPSN

BPSN provide a powerful IP based switching network which supports higher capacity for ZXG10 iBSC. The key switch board PSN can provide 40Gbps for packet switching.

4.3 Software Architecture

ZXG10 iBSC software structure includes BSP&DRIVERS, MCR, OSS, BRS, PP, SCS, DBS, OMS, SS, RANC, RANSS, RANU.



Figure 3 Software Structure of ZXG10 iBSC

BSP&Driver: BSP sub-system offers driver for hardware, screen hardware function and mapping of logical functions to upper software.

OSS: Operation Supporting System, which works between BSP and other sub-system. Task of OSS includes process communication, file management, equipment driving, schedule work, etc.

BRS: Bearer Sub-system works based on OSS to offer ATM, IP, TDM bearer services for service sub-system, ignalling sub-system, O&M sub-system. The function of BRS can be divided as link layer function, network transmission function, dynamic router function, ATM function, flux-controlling function.

PP: Primary Peripheral sub-system. PP sub-system mainly has five functions: digital interface management, switch network management, offering system clock, monitoring environment and power management.

SCS: System Control sub-system, works on OSS and Database sub-system, responsible for monitoring whole system, downloading software and upgrading system.

DBS: Database Sub-system, which works on OSS sub-system, responsible for management of network element and information of services, signalling, protocol.

OMS: Operation and Maintenance Sub-system, which works on DBS and OSS, manages network elements including BTS and BSC.

SS: Signalling Sub-system, which work on OSS,DBS,BRS, deals with narrow band No.7 signalling, WB No.7 signalling, calling signalling, IP signalling and network gate control signalling.

RANC: RAN Control, manages the control panel protocol of Um, Abis, A, Gb, Lb, including wireless resource management, dynamic channel adjustment, load control, handover processing and signalling connection management.



RANU: RAN User. For PS and Iu mode, RANU is responsible for transferring data on wireless interface and Gb interface; For CS service, it mainly signal’s TC function.

RANSS: RAN Support Sub-system. RANSS supports control panel and user panel to signal whole BSC functions including signalling trace, load control, access control, performance measurement etc.

MCS: Micro-Code sub-system, the main function is to quickly deal with user plane’s data, to realize separation between user plane and control plane.

4.4 OMM Module

OMM module developed on the general network management platform, it complies with TMN standards. It provides the local operation and management function to operators. OMM module has integrated the local O&M function for GERAN BSC, BTS and PCU into one board, which is named as SBCX equipped in iBSC Rack.



5 Technical Specifications

5.1 Physical Indices

5.1.1 Mechanical Dimensions

Rack dimensions: 2000mm (H) * 800mm (D) * 600mm (W)

5.1.2 Weight

The weight of full configuration one rack is less than 270Kg (with built-in PCU and TC).

The weight of full configuration two rack is less than 540Kg (with built-in PCU and TC).

5.1.3 Color

Rack Color: Navy Blue

5.2 Capacity

Table 1 Capacity of iBSC

Maximum TRX Maximum Site Maximum Erl BHCA

3072 153615000Erl(based on the traffic model of ZTE)

4200k

5.3 Power

5.3.1 Power Requirements

Power Requirement for the primary DC by ZXG10 iBSC:

The nominal value of voltage provided by the power equipment in the equipment room is -48V, with an acceptable range from -57V to -40V.

The noise level in the power voltage should be in compliance with the general technical specifications of the former MPT.

Power supply has over-current protection and indication.



Grounding resistance: <1 ohmer

5.3.2 Power Consumption

The power consumption of ZXG10 All IP Enhance iBSC rack is based on the calculation according to the actual configuration.

One rack configuration: For all E1 interface, the power consumption is 2558W; For all IP interface, the power consumption is 2542W(including 160W power consumption of SCBX, with built-in PCU and TC).

Two racks configuration: For all E1 interface ,the power consumption is 6368W;For all IP interface, the power consumption is 3808W (including 160W power consumption of SCBX, with built-in PCU and TC)

5.4 Transmission.

5.4.1 A interface and Abis interface

Table 2 Capability of A interface and Abis interface

　　　　　　　　　　　　　　　A interfaceAbis interface

E1(T1) A STM-1 A IP A

E1(T1) Abis

One Rack Abis 208 E1 208 E1 208 E1

One Rack A 192 E1 4+4STM-1 3+3GE

two Rack Abis 624 E1 624 E1 624 E1

two Rack A 704 E1 11+11STM-1 3+3GE

STM-1 Abis

One Rack Abis 3+3STM-1 3+3STM-1 3+3STM-1

One Rack A 192E1 4+4STM-1 3+3GE

two Rack Abis 9+9STM-1 9+9STM-1 9+9STM-1

two Rack A 704E1 11+11STM-1 3+3GE

IP Abis

One Rack Abis 1+1GE 1+1GE 1+1GE


two Rack Abis 2+2GE 2+2GE 2+2GE


IpoE Abis

One Rack Abis 160 E1 160 E1 160 E1


two Rack Abis 480 E1 480 E1 480 E1




5.4.2 Ater interface

Table 3 Ater interface (independent TC)

E1 STM-1 GE

192E1 3+3STM-1 1+1GE

5.4.3 Gb interface throughout

Table 4 Gb interface throughout

Two Rack with all IP

Two Rack with TDM

700M 256M

5.5 Working Environment

5.5.1 Working Environment

Working temperature:

Long-term working temperature: 0°C~40°C.

Short-term working temperature: -5°C~45°C.

Relative humidity

Long-term work relative humidity: 20%~90%.

Short-term work relative humidity: 5%~95%.

5.5.2 Storage Environment

It should be packed and stored indoors.

Temperature: -45°C~70°C

Relative humidity: 10%~90%

5.5.3 Anti-Earthquake Level

For the anti-earthquake level, ZXG10 iBSC can withstand Dietmar-Lee 8 levels of earthquake damage.



5.6 Environmental Classes

5.6.1 Electromagnetic Compatibility (EMC)

Anti-static capability.

In compliance with Detailed Rules for Network-Access Detection of Mobile Switches, i.e., the anti-static capability satisfies the following specifications:

Contact discharging: ±6kV; air discharging: ±8kV.

In full-load working (i.e., ZXG10 iBSC rack is configured to full capacity), the conducted emission on the power cable conforms to the level-A standard of GB9254-1998, as shown in Table 4.

Table 5 Conducted emission suppression of the power port

Frequency range Quasi-peak detector Average detector

0.15kHz~500kHz 79 dBuV 66 dBuV

500kHz~30MHz 73 dBuV 60 dBuV

Whole-system radiated emission suppression

In full-load working (i.e., ZXG10 iBSC rack is configured to full capacity), the radiated emission on the whole system conforms to the level-B standard of GB9254-1998, as shown in Table 5.

Table 6 Whole-system radiated emission suppression

Frequency range Limits of value (quasi-peak detector)

30MHz~230MHz 40 dBuV/m

230MHz~1000MHz 37 dBuV/m

Whole-system anti-radiation interference

IEC1000-4-3, level 2, 3V/m.

Anti-lightning interference of A/Abis/Gb interface

IEC1000-4-5, level 2, ±500V.

Anti-pulse series interference

The anti-burst interference of the power port: IEC1000-4-4, level 2, ±1kV.

The anti-burst interference of the A/Abis/Gb interface: IEC1000-4-4, level 2, ±500V.

Anti-RF conduction interference



The anti-RF conduction interference of the power port: IEC1000-4-6, level 2, ±3V.

The anti-RF conduction interference of the A/Abis/Gb port: IEC1000-4-6, level 2, ±3V.

5.6.2 External Alarms

ZXG10 iBSC supports external alarms management including smoke, temperature, humidity, and water, infrared, door-forbidden and fan etc. Four addition trunk nodes alarms are provided

5.6.3 Noise Level

Less than 60dB

5.7 Reliability

In ZXG10 iBSC, the algorithm of system reliability is based on the national military GJB/Z299B Electronic Equipment Reliability Estimation Manual and US military handbook MIL-HDBK-217F Electronic Equipment Reliability Estimation.

Under detail calculation and proven by strict environment tests, ZXG10 iBSC can ensure reliability of MTBF is more than 100,000 hours and MTTR is less than 0.5 hour.


BCTCBGSN

BPSN

BGSN


6 Configuration InstructionsZXG10 iBSC has modularized design and distributed management system. Configuration of iBSC is so flexible and has high integration with TC; only two racks of ZXG10 iBSC can support up to 3072 TRXs.

For different functional units, ZXG10 iBSC designs corresponding shelves. They are: BCTC, BPSN, BGSN.

Two typical types of iBSC configuration is shown below,are:

6.1 Configuration 1: One rack with all IP

Application scene: normal configuration with TC integrated in moderate capacity

Capacity: 2048 TRX

IP Abis:1+1GE(1+1backup);

IP A:2+2GE(1+1backup)

Gb Interface: 450 M

Figure 4 One rack with all IP configuration of ZXG10 iBSC

6.2 Configuration 2: Two Racks with TDM

Application scene: full configuration with TC integrated for high capacity

Capacity: 3072 TRX


BGSN

BGSN

BGSN

BGSN

BCTC

BGSN

BGSN

BPSN


TDM Abis: 624 E1/ 9+9STM-1;

TDM A: 704E1/11+11STM-1(1+1backup)

Gb Interface: 256M

Figure 5 Two racks with TDM configuration of ZXG10 iBSC



7 Acronyms and Abbreviations

Table 7 Abbreviation List

Abbreviations Full names

3GPP 3rd Generation Partnership Project

AIU A Interface Unit

BCTC Backplane of ConTroL Center

BGSN Backplane of lGiga Universa Service Network

BHCA Busy-Hour Call Attempts

BIU Abis Interface Unit

BPSN Backplane of Packet Switch Network

BRS Barer Sub-system

BSC Base Station Controller

BSS Base Station System

BTS Base Transceiver Station

CMP Service Main Processor

CHUB Control HUB

CLKG Clock Generator

CRRM Common Radio Resource Management

DBS Database Sub-system

DTB Digital Trunk Board

EIPI E1 IP Interface

EMC Electro-Magnetic Compatibility

GIU Gb Interface Unit

GIPI GE IP Interface board

GLI Gigabit Line Interface

GUP2 GSM Universal Processing board

LCU Local Control Unit

LRA Local Register&Authenticator Unit

LSU Local Switch Unit

MGW Medium GateWay

MSC Mobile services Switching Center

OMP Operation Main Processor

OMS Operating Maintenance Subsystem

OSS Operating & Support Subsystem

PCU Packet Control Unit

PEPD Peripheral Environment & Power Detect board

PWRD POWeR Distributor



Abbreviations Full names

PP Primary Peripheral

QoS Quality of Service

RANC RAN Control

RANSS RAN Support Sub-system

RANU RAN User

RRU Radio Resource management Unit

SBCX Single Board Computer of X86

SDTB Sonet Digital Trunk Board

SDTB2 Sonet Digital Trunk Board

SCS System Control Sub-system

SPB Signaling Process Board

SS Signaling Sub-system

TC TransCoder

TCU TransCoder Unit

TFO Tandem Free Operation

UIM Universal Interface Module


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110117_B4.1.1.6 ZXG10 iBSC Product Description_ZTE.docx