GBC_022_E0_1ZXG10-B8018 description

ZTE University

GSM BSS Team

Contents

General Introduction

Structure Introduction

New Features

Configuration Introduction

Networking modes

General Introduction

Specification explanation

What does B8018 mean?

General Introduction

General Introduction

ZXG10 B8018 is new type of ZXG10-BTS, based on ZXG10-BTS

(V2)

It not only has inherited all advantages of ZXG10-BTS (V2), but

also has added many new functions and services to satisfy

market requirements. In addition, it also reduces hardware and

networking cost.

It is one of the most perfect serial BS and solve the problem that

cannot be solved by current ZXG10-BTS (V2).

General Introduction

General Introduction

The main functions of ZXG10 B8018 are shown below:

Employs DTRU technology, i.e. two carriers in each

physical transceiver module;

Supports parallel connection with ZXG10-BTS (V2) cabinet

to realize capacity expansion;

Supports DPCT, downlink delay diversity (DDT)

transmission, IRC and so on;

Supports 4 diversities reception;

Supports 8 E1/T1 interface;

Supports 75Ω/E1 and 120Ω/E1 transmission;

Supports intelligent power on/off;

Supports IP Abis-interface.

General Introduction

Rack Layout of B8018

General Introduction

1600mm×600mm×550mm (H×W×D)

Cabinet size

General Introduction

System Indices

Frequency Range GSM900, EGSM900, 850, 1800, 1900MHz band

Power Amplifier Output: For GMSK=60W For 8PSK= 40W

Static Receiving Sensitivity -112dBm

Voltage -48V DC

Allowed Change Range -40 ~ -57

Maximum Power Consumption 3750 W

Working Temperature -15 ~ 45 C

Relative Humidity 5% ~ 90%

Grounding Resistance <5 ohm

Capacity Single rack=18 TRX/Rack

Largest Site Type S18/18/18 or O54

General Introduction

S6/6/6 S12/12/12 S18/18/18

BTS Expansion

General Introduction

Single Cabinet with Full Configuration

General Introduction

General Introduction

1. Rear Board

2. Grounding Screw

3. Cabinet Top

4. Top-Layer Shelf

5. Fan Plug-in Box

6. Carrier Shelf

7. Side Baffle

8. Front Door

9. Horizontal Cabling

Rack

10. Cabinet Main Body

11. Base

12. Air Filter Plug-in Box

Cabinet Structure

General Introduction

Cabinet Top Layout

General Introduction

General Introduction

General Introduction

Interfaces on the Cabinet Top

General Introduction

General Introduction

Interfaces on the Cabinet Top

General Introduction

General Introduction

DIP Switch

General Introduction

General Introduction

BTS Type 1100 : B8018

1101 : B8112

1110 : M8202

1111 : M8204

BTS_NO : Cabinet number in the same site 00 : Basic Cabinet

01 : Extended Cabinet 1

10 : Extended Cabinet 2

SLAVE1_PORT : The E1 port of the basic cabinet to connect extended

cabinet 1

00 : Port E of the basic cabinet

01 : Port F of the basic cabinet

10 : Port G of the basic cabinet

11 : Port H of the basic cabinet

General Introduction

General Introduction

SLAVE2_PORT : The E1 port of the basic cabinet to connect extended

cabinet 2

00 : Port E of the basic cabinet

01 : Port F of the basic cabinet

10 : Port G of the basic cabinet

11 : Port H of the basic cabinet

SATE : Whether to use the satellite Abis link or not 0 : Common Abis

1 : Satellite Abis

ABIS_PORT : O&M port number 00 : Port A

01 : Port B

10 : Port C

11 : Port D

General Introduction

General Introduction

ABIS_TS : The O&M Lapd timeslot on Abis interface

000 : TS16

001 : TS31

010 : TS30

011 : TS29

100 : TS28

101 : TS27

110 : TS26

111 : TS25

General Introduction

Ventilation scheme

General Introduction

General Introduction

Contents

General Introduction

Structure Introduction

New Features

Configuration Introduction

Networking modes

General hardware structure of ZXG10 B8018

Structure Introduction

Structure Introduction

Structure Introduction

Controller & Maintenance Board (CMB)

CMB is a major digital board in ZXG10 B8018 (V1.00)

providing interface and central control functions. CMB

works in active/standby mode, to avoid interruption and

give protection to the services.

CMB

PWR RUN SYN CLK MST STA M/S RST FPWR

Structure Introduction

Structure Introduction

CMB Function:

Provides eight E1/T1 interfaces.

Overall radio clock and transmission clock synchronization

can be achieved by configuring CMB for overall network

synchronization at background.

Provides transparent passage for external environment

alarm.

Supports star, chain, tree, and ring networking at Abis

interface.

Structure Introduction

Time Slot Switching in B8018 System

Structure Introduction

CMB

E1/T1Frame

r&LI U

FI B

8*2MHW

4*2MHW

8*E1/T1

100M ETH

MT90826

速率变换8MHW

EI B 8*E1/ T1

CPU

QMC

2MHW

速率变换

速率变换

速率变换

4*2MHW

4*2MHW

4*2MHW

8MHW

8MHW

8MHW

dTRU(#0-2)

LAYER 1LAYER 2

LAYER 3

2MHW

dTRU(#3-5)

dTRU(#6-8)

环境监控透明通道

2MHW

Envi ronmentmoni stor

t ransparentpassage

Rateconversi

on

Rateconversi

on

Rateconversi

on

Rateconversi

on

Structure Introduction

Implements, and reads various hardware management

IDs of system includes: detect in-position indication, send

control command by control link ,software reset each

board in system, implement power switch of each board

in system, implement power switch of each board in

system.

Monitoring and control of each board running status.

Structure Introduction

Structure Introduction

E1/T1 Interface Board (EIB)

EIB Board provides the Abis interface connecting to the BSC.

EIB

Structure Introduction

EIB hardware sub-system of ZXG10 B8018

Structure Introduction

匹配电路

变压器

保护器件

跨接继电器

背

板

EI B

8 E1/T1

backplane

matchingcircuit

Transformer

protectiondivice

bridgeconnection relay

Structure Introduction

FIB hardware sub-system of ZXG10 B8018

Structure Introduction

Structure Introduction

Structure Introduction

Transceiver Module for EDGE (DTRU)

DTRU means dual TRX ， one DTRU consist of two TRXs

in ZXG10-8000 series BTS.

The DTRU controls and processes radio channels in the

GSM system, sends/receives radio channel data,

modulates/demodulates baseband signals on the radio

carrier, sends/receives radio carrier signals, and collects

alarms of the fans and AEMs.

Structure Introduction

DTRU Front panel

Structure Introduction

Compared with BTS(V2.9), there are

Another ACT indicator, ACT1 and

ACT2 Indicate the channel status of

2 TRX Separately.

Structure Introduction

TRM GROUP AEM

Tx

Rx

Rx

D

Structure Introduction

Antenna Equipment Module (AEM)

Antenna Equipment Module

Structure Introduction

Structure Introduction

Antenna Equipment Module Types

Structure Introduction

Structure Introduction

Antenna Equipment Module

Structure Introduction

Structure Introduction

Antenna Equipment Module

Structure Introduction

Structure introduction

Antenna Equipment Module

Structure Introduction

Structure Introduction

Antenna Equipment Module

Structure Introduction

Structure Introduction

Difference between CEUs and CENUs

Structure Introduction

Structure Introduction

Introduction of CDU (1)

VSWR_meter

ANT

RTE

forward reverse

Alarms

optional

DuplexerCable

Cable

Rx_in

Tx_out

RX1

RX2

RX3RX4

ERX1

ERX2LNA_Splitter

Alarms

TX1

TX250ohm

Hybird_combiner

Structure Introduction

Structure Introduction

Introduction of CDU (2)

1 to 4 Divider

2 to 1 Combiner

DUPLEXER

Ext Receive

RX1

CDU

TEST

ANT

TX1

TX2

RX2

RX3

RX4

EX1

EX2

Combiner Input

Indicator

Divider Output

Divider Ext Output

Antenna

Test Port

Structure Introduction

Structure Introduction

Introduction of ECDU

VSWR_meter

ANT

RTEforward reverse

Alarms

optional

Duplexer Cable

Cable

Rx_in RX1

RX2

LNA_Splitter

Alarms

ITX

Rx_filterANTD Cable Rx_inLNA_Splitter

Alarms

RXD1

RXD2

Structure Introduction

Structure Introduction

Introduction of RDU

RTE

Rx_filter

50ohm

ANT Cable Rx_in RX1

RX2

RX3

RX4

ERX1

ERX2LNA_Splitter

Alarms

Structure Introduction

Structure Introduction

Introduction of CEU (1)

To CDU TX1

RX1

RX2

RX3

RX4

ERX1

ERX2

Rx_Splitter

TX1

TX250ohm

Hybird_combiner

To CDU TX2 TX3

TX450ohm

Hybird_combiner

Structure Introduction

Structure Introduction

Introduction of CEU (2)

1 to 2 Divider

2 to 1 Combiner

1 to 2 Divider

2 to 1 Combiner

RX1

CEUTX1

TX2

RX2

RX3

RX4

EX1

EX2

OTX1

TX3

TX4

OTX2

Indicator

Divider Output

Divider Ext Output

Combiner Input

Combiner Output

Structure Introduction

Structure Introduction

Introduction of CENU

Structure Introduction

Structure Introduction

Introduction of CENU/2

Structure Introduction

PDM of ZXG10 B8018

Structure Introduction

Structure Introduction

Contents

General Introduction

Structure Introduction

New Features

Configuration Introduction

Networking modes

New Features

The main features of ZXG10 B8018 is shown below:

DTRU technology;

DPCT-dual power combining Transmission;

DDT-delay diversity transmission

4-way diversity reception;

IRC-Interference Rejection Combining;

intelligent power on/off;

IP Abis-interface.

New Features

New Features

The DTRU is very flexible and can be used for several

purposes . Its two TRXs, for instance, can be used

separately (the same with ever)or both,both refers to by

DPCT to improve the downlink and by four-way diversity

to improve the uplink, they can be configured to create a

super TRX.

New Features

New Features

One DTRU can easily be used to extend coverage

New Features

New Features

DPCT---- Dual Power Combining Transmission:

When seeking greater cell range it is crucial to have a strong

signal from the BTS to the handset. This is often referred to

as downlink capability. This is what a handset presents as

signal strength in the display. In configurations intended for

maximum coverage, Dual Power Combining Transmission

(DPCT) feature doubles the output power from the BTS

cabinet, resulting in a significantly larger coverage area.

New Features

New Features

DPCT principle

New Features

New Features

DPCT implementation in B8018

New Features

New Features

DDT ----Delay Diversity Transmission

Purpose: supports downlink transmitter diversity (the mobile phone

combines the best of two signals).

Implementation: by transmitting the same information on two TRXs with

a short delay and different antennas.

using only a simple software command, operators can convert the base

station from a two transceiver operational mode into the “DDT" mode,

where the two transceivers work together as one virtual transceiver, so

extending the range.

cellular downlink performance is increased by at least 3.0 decibels (dB)

at the cell border, reducing the number of sites needed by up to 30

percent over any conventional base station coverage network.

New Features

New Features

DDT implementation in B8018

C M B

d T P B

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br an c hdiv.TX

6 .5 Mc a r r i e r

s ym bolde lay

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D Lbur stda t a

D A C

D A C

Con

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&b

aseb

and

pro

cess

base

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mod

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Abi

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boar

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Dig

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br an c h div.data

m ain div.data

6 .5 Mc a r r i e r

Delay Diversity Transmission

New Features

New Features

4 div RX ― 4 diversities reception

The majority of radio networks today have limited range due to

weak uplink signals from handsets. The best way to overcome

an unbalanced link budget is to ensure good receiver capability

in the base station. With the addition of a second antenna

system in the cell, we enable 4-Way Receiver Diversity

(4WRD), and this provides a total uplink that compensates for

weak handset signals.

The combination of DPCT with fully compensated uplink based

on 4-way Receiver Diversity comprises our Supreme Coverage

solution.

New Features

New Features

IRC ― Interference Rejection Combining

Another way to increase the capacity, more advanced detection

techniques have been implemented - Interference Rejection

Combining (IRC)

In maximum ratio combining (MRC) each signal is weighted with

its signal-to-noise ratio to achieve optimum performance in white

noise environments, i.e. the noise signal is uncorrelated in time.

IRC, on the other hand, takes the correlation properties of CO-

channel interferers into account to suppress them, and therefore is

able to achieve much better performance in co-channel limited

environments than MRC.

New Features

New Features

Int. Pwr on/off ― Intelligent power on/off

In order to reduce OPEX of operator, when traffic decrease

to certain value or in idle mode, this scheme automatically

to turn off part of Modules of B8018 to save power.

When traffic increase to certain busy threshold, this

scheme automatically to turn on sleep module to balance

the traffic.

The principle is as follows: CMB is able to control the switch

of all board (mainly is DTRU) in rack except interface board

(EIB/FIB) and CMB.

New Features

New Features

IP Abis

One of the primary advantages of employing IP-based

transport is the ease of maintenance arising from

convergence of core and RAN networks.

Other advantages include economic benefits and capacity

benefits

New Features

Contents

General Introduction

Structure Introduction

New Features

Configuration Introduction

Networking modes

Configuration Instruction

O4 Configuration

Configuration Introduction

Configuration Instruction

O6 Configuration

Configuration Introduction

Configuration Instruction

O8 Configuration

Configuration Introduction

Configuration Instruction

S8/8/8 Configuration

Configuration Introduction

Configuration Instruction

DPCT with O2 (S2) with 4 Diversity

Configuration Introduction

Configuration Instruction

GSM900 + GSM1800 S2 + S2 Configuration

Configuration Introduction

Configuration Instruction

S4/4/4 Configuration

Configuration Introduction

Configuration Instruction

S6/6/6 Configuration

Configuration Introduction

Configuration Instruction

Configuration

Configuration Introduction

Configuration Instruction

S2/2/2 ConfigurationWith DPCT and 4 Diversities

Configuration Introduction

Configuration Instruction

S2/2/2 hybrid Configuration

Configuration Introduction

Configuration Instruction

S8/8/8 Configuration

Configuration Introduction

Contents

General Introduction

Structure Introduction

New Features

Configuration Introduction

Networking modes

Networking Modes

Tree Networking Mode

Networking modes

Networking Modes

Star Networking Mode

Networking modes

Networking Modes

Chain Networking Mode

Networking modes

Networking Modes

Ring Networking Mode

Networking modes