Transcript pps

GBC_022_E0_1
ZXG10-B8018 description
ZTE University
GSM BSS Team
Contents
General Introduction
Structure Introduction
New Features
Configuration Introduction
Networking modes
General Introduction
General Introduction
What does B8018 mean?
Specification explanation
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
General Introduction
Rack Layout of B8018
Cabinet size
1600mm×600mm×550mm
(H×W×D)
General Introduction
System Indices

Frequency Range
GSM900, EGSM900, 850, 1800, 1900MHz band

Power Amplifier Output:
For GMSK=60W

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
For 8PSK= 40W
General Introduction
BTS Expansion
S6/6/6
S12/12/12
S18/18/18
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
General Introduction
Cabinet Top Layout
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
General Introduction
Ventilation scheme
Contents
General Introduction
Structure Introduction
New Features
Configuration Introduction
Networking modes
Structure Introduction
Structure Introduction
General hardware structure of ZXG10 B8018
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
FPW
R
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
CMB
Environment
环境
monistor
监控
transparent
透明
passage
CPU
FIB
Rate
速率
8MHW conversi 4*2MHW
变换
on
8MHW
dTRU
(#35)
8MHW
dTRU
(#68)
8*2MHW
MT90826
100M ETH
dTRU
(#02)
LAYER 3
EIB
HW
2M
*
4
8MHW
LAYER 2
8*E1/T1
E1/T1
Frame
8*E1/T1
r&
LIU
Rate
速率
conversi
变换
on
LAYER 1
2MHW
2MHW
QMC
2M
HW
通道
Rate
速率
4*2MHW conversi
变换
on
4*2
MHW
Rate
速率
conversi
变换
on
Time Slot Switching in B8018 System
Structure Introduction
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
Structure Introduction
EIB
8 E1/T1
connection relay
EIB hardware sub-system of ZXG10 B8018
bridge
跨
接
继
电
器
protection
保
护
器
件
divice
Transformer
matching
变
压
器
circuit
板
匹
配
电
路
backplane
背
Structure Introduction
Structure Introduction
FIB hardware sub-system of ZXG10 B8018
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
Structure Introduction
DTRU Front panel
Compared with BTS(V2.9), there are
Another ACT indicator, ACT1 and
ACT2 Indicate the channel status of 2
TRX Separately.
Structure Introduction
Structure Introduction
Antenna Equipment Module (AEM)
Tx
TRM
GROUP
AEM
Rx
Rx
D
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
LNA_Splitter
Duplexer
Cable
Rx_in
ANT
ERX1
ERX2
RX1
RX2
RX3
RX4
Cable
Alarms
RTE
forward
reverse
optional
VSWR_meter
Tx_out
TX1
50ohm
Hybird_combiner
Alarms
Introduction of CDU (1)
TX2
Structure Introduction
Structure Introduction
CDU
Combiner Input
Ext Receive
TX1
TX2
Test Port
Indicator
1 to 4
Divider
TEST
Antenna
2 to 1
Combiner
ANT
RX1
RX2
Divider Output
RX3
RX4
Divider Ext Output
EX1
EX2
Introduction of CDU (2)
D
U
P
L
E
X
E
R
Structure Introduction
Structure Introduction
LNA_Splitter
Duplexer
Cable
ANT
RX1
Rx_in
RX2
Cable
forward
reverse
VSWR_meter
Alarms
RTE
ITX
optional
Alarms
LNA_Splitter
ANTD
Rx_filter
Cable
Rx_in
RXD1
RXD2
Alarms
Introduction of ECDU
Structure Introduction
Structure Introduction
LNA_Splitter
Rx_filter
ANT
Cable
Rx_in
50ohm
Alarms
RTE
Introduction of RDU
ERX1
ERX2
RX1
RX2
RX3
RX4
Structure Introduction
Structure Introduction
Rx_Splitter
ERX1
ERX2
RX1
RX2
RX3
RX4
TX1
To CDU TX1
50ohm
TX2
Hybird_combiner
To CDU TX2
50ohm
TX3
TX4
Hybird_combiner
Introduction of CEU (1)
Structure Introduction
Structure Introduction
Combiner Input
Combiner Output
CEU
1 to 2 Divider
TX1
TX2
Indicator
OTX1
1 to 2 Divider
TX3
Divider Output
TX4
2 to 1 Combiner
OTX2 RX1
RX2
RX3
Divider Ext Output
2 to 1 Combiner
RX4
EX1
EX2
Introduction of CEU (2)
Structure Introduction
Structure Introduction
Introduction of CENU
Structure Introduction
Structure Introduction
Introduction of CENU/2
Structure Introduction
Structure Introduction
PDM of ZXG10 B8018
Contents
General Introduction
Structure Introduction
New Features
Configuration Introduction
Networking modes
New Features
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
DL
burst
data
IQ
data
Digital upconversion
dTPB
baseband modulation
CMB
Control &baseband process
Abis Interface board
Delay Diversity Transmission
6.5 M
carrier
main div.data
DAC
branch div.data
symbol
DAC
delay
DDT implementation in B8018
6.5 M
carrier
main div
TX
branch
div.
TX
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
Contents
General Introduction
Structure Introduction
New Features
Configuration Introduction
Networking modes
Configuration Introduction
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 Configuration
With DPCT and 4 Diversities
Configuration Introduction
Configuration Instruction
S2/2/2
hybrid Configuration
Configuration Introduction
Configuration Instruction
S8/8/8
Configuration
Contents
General Introduction
Structure Introduction
New Features
Configuration Introduction
Networking modes
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