GBC_022_E0_1 ZXG10-B8018 description ZTE University GSM BSS Team

Contents General Introduction Structure Introduction New Features Configuration Introduction Networking modes

What does B8018 mean? General Introduction 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 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 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 BTS Expansion S6/6/6 S12/12/12 S18/18/18

Single Cabinet with Full Configuration General Introduction Single Cabinet with Full Configuration

General Introduction Rear Board Grounding Screw Cabinet Top Top-Layer Shelf Fan Plug-in Box Carrier Shelf Side Baffle Front Door Horizontal Cabling Rack Cabinet Main Body Base Air Filter Plug-in Box Cabinet Structure

General Introduction General Introduction Cabinet Top Layout

Interfaces on the Cabinet Top General Introduction General Introduction Interfaces on the Cabinet Top

Interfaces on the Cabinet Top General Introduction General Introduction Interfaces on the Cabinet Top

General Introduction General Introduction DIP Switch

General Introduction BTS Type 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 ABIS_TS : The O&M Lapd timeslot on Abis interface

General Introduction General Introduction Ventilation scheme

Contents General Introduction Structure Introduction New Features Configuration Introduction Networking modes

Structure Introduction General hardware structure of ZXG10 B8018

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 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 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 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 FIB hardware sub-system of ZXG10 B8018

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 Compared with BTS(V2.9), there are Another ACT indicator, ACT1 and ACT2 Indicate the channel status of 2 TRX Separately.

Structure Introduction Antenna Equipment Module (AEM) TRM GROUP AEM Tx Rx RxD Antenna Equipment Module

Structure Introduction Antenna Equipment Module Types

Structure Introduction Antenna Equipment Module

Structure Introduction Antenna Equipment Module

Structure introduction Antenna Equipment Module

Structure Introduction Antenna Equipment Module

Structure Introduction Difference between CEUs and CENUs

Structure Introduction Introduction of CDU (1)

Structure Introduction RX1 CDU TEST ANT TX1 TX2 RX2 RX3 RX4 EX1 EX2 Combiner Input Indicator Divider Output Divider Ext Output Antenna Test Port Ext Receive 1 to 4 Divider 2 to 1 Combiner D U P L E X R Introduction of CDU (2)

Structure Introduction Introduction of ECDU

Structure Introduction Introduction of RDU

Structure Introduction Introduction of CEU (1)

Structure Introduction RX1 CEU TX1 TX2 RX2 RX3 RX4 EX1 EX2 OTX1 TX3 TX4 OTX2 Indicator Divider Output Divider Ext Output Combiner Input Combiner Output 1 to 2 Divider 2 to 1 Combiner Introduction of CEU (2)

Structure Introduction Introduction of CENU

Structure Introduction Introduction of CENU/2

Structure Introduction PDM of ZXG10 B8018

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 One DTRU can easily be used to extend coverage

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 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 Delay Diversity Transmission DDT implementation in B8018

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 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 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 Instruction Configuration Introduction Configuration Instruction O4 Configuration

Configuration Instruction Configuration Introduction Configuration Instruction O6 Configuration

Configuration Instruction Configuration Introduction Configuration Instruction O8 Configuration

Configuration Instruction Configuration Introduction Configuration Instruction S8/8/8 Configuration

Configuration Instruction Configuration Introduction Configuration Instruction DPCT with O2 (S2) with 4 Diversity

Configuration Instruction Configuration Introduction Configuration Instruction GSM900 + GSM1800 S2 + S2 Configuration

Configuration Instruction Configuration Introduction Configuration Instruction S4/4/4 Configuration

Configuration Instruction Configuration Introduction Configuration Instruction S6/6/6 Configuration

Configuration Instruction Configuration Introduction Configuration Instruction Configuration

Configuration Instruction Configuration Introduction Configuration Instruction S2/2/2 Configuration With DPCT and 4 Diversities

Configuration Instruction Configuration Introduction Configuration Instruction S2/2/2 hybrid Configuration

Configuration Instruction 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