BTS_U_BS8700 Product Description (Distributed)

8/20/2019 BTS_U_BS8700 Product Description (Distributed)

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ZXSDR BS8700 Product

Description


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ZXSDR BS8700 Product Description

ZTE Confidential Proprietary © 2011 ZTE CORPORATION. All rights reserved. I


Version Date Author Approved By Remarks

© 2011 ZTE Corporation. All rights reserved.

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

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


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II ©2011ZTE CORPORATION. All rights reserved. ZTE Confidential Proprietary

TABLE OF CONTENTS

1

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

2

Product Highlights .......................................................................................... 3

3

Functionality ................................................................................................... 4

3.1

Basic Functions ................................................................................................ 4

3.2

Service Functions ............................................................................................. 5

4

System Architecture ....................................................................................... 7

4.1

Product Physical Structure................................................................................ 7

4.2

Hardware Architecture ...................................................................................... 7

4.2.1

Baseband Unit .................................................................................................. 9

4.2.2

Radio Unit ....................................................................................................... 15

4.3

Software Architecture ..................................................................................... 44

5

Technical Indices .......................................................................................... 45

5.1

Technical Indices ............................................................................................ 45

5.2

External Interface ........................................................................................... 48

6

Operation and Maintenance ......................................................................... 49

7

Configuration Principles .............................................................................. 52

7.1 Baseband Unit Configuration Principles .......................................................... 52 7.2

Radio Unit Configuration Principles ................................................................ 52

7.3

GSM Single Mode Configuration Principles .................................................... 52

7.3.1

R8860E Configuration .................................................................................... 52

7.3.2

R8882 Configuration ....................................................................................... 53

7.4

UMTS Single Mode Configuration Principles .................................................. 53

7.4.1

R8840/R8880A Configuration ......................................................................... 53

7.4.2

R8860E Configuration .................................................................................... 53

7.4.3

R8882 Configuration ....................................................................................... 53

7.5

GSM/UMTS Dual-Mode Configuration Principles ............................................ 54

7.5.1

GSM 850M/900M/1800M/1900M and UMTS 850M/900M/1800M/1900MDual-Mode Network in Same Spectrum ......................................................... 54

7.5.2

GSM 900M/1800M and UMTS 2100M Dual-Mode Network in Different

Spectrums ...................................................................................................... 54

8

Acronyms and Abbreviation ........................................................................ 55


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ZTE Confidential Proprietary © 2011 ZTE CORPORATION. All rights reserved. III

FIGURES

Figure 1-1 Conventional GSM/EDGE/UMTS Network System ............................................. 1

Figure 1-2 ZTE SDR BS Composed GSM/UMTS Network ................................................... 1

Figure 1-3 Networking Diagram (B8200, RNC/BSC and RRU) ............................................. 2

Figure 4-1 Example of ZXSDR BS8700 Physical Structure .................................................. 7

Figure 4-2 BS8700 Hardware Structure ............................................................................... 8

Figure 4-3 B8200 Baseband Unit of BS8800 ........................................................................ 9

Figure 4-4 CC Panel .......................................................................................................... 10

Figure 4-5 UBPG Panel...................................................................................................... 11

Figure 4-6 BPC Panel ........................................................................................................ 12

Figure 4-7 FS Panel ........................................................................................................... 12

Figure 4-8 SA Panel ........................................................................................................... 13

Figure 4-9 SE Panel ........................................................................................................... 14

Figure 6-1 NetNumen M31 Elements Management System ............................................... 49

TABLES

Table 4-1 Main Board List of Baseband Unit ........................................................................ 9

Table 4-2 CC Panel Interface List ...................................................................................... 10

Table 4-3 FS Panel Interface List ....................................................................................... 13

Table 4-4 SA Panel Interface List ....................................................................................... 13

Table 4-5 SE Panel Interface List ....................................................................................... 14

Table 3-1 ZXSDR R8840 Physical Indices ......................................................................... 20

Table 5-1 ZXSDR BS8700 Technical Indices ..................................................................... 45

Table 5-2 Description of BS8700 External Interface ........................................................... 48

Table 7-1 BS8700 Configuration for GSM Single Mode (R8860E, TOC 20W/TRX) ............ 52

Table 7-2 BS8700 Configuration for GSM Single Mode (R8882, TOC 20W/TRX) .............. 53

Table 7-3 BS8700 Configuration for UMTS Single Mode (R8840/R8880A) ........................ 53

Table 7-4 BS8700 Configuration for UMTS Single Mode (R8860E) ................................... 53

Table 7-5 BS8700 Configuration UMTS Single Mode (R8882) ........................................... 53

Table 7-7 BS8700 Configuration for G/U Dual-Mode (Same Spectrum, R8860E) .............. 54

Table 7-8 BS8700 Configuration for G/U Dual-Mode (Same Spectrum, R8882) ................. 54


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IV ©2011ZTE CORPORATION. All rights reserved. ZTE Confidential Proprietary

Table 7-9 BS8700 Configuration for G/U Dual-Mode (Different Spectrums) ....................... 54


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ZTE Confidential Proprietary © 2011 ZTE CORPORATION. All rights reserved. 1

1 Overview

In general, GSM/EDGE/UMTS system consists of Core Network (CN), Radio Network

(GERAN/UTRAN) and Mobile Station/User Equipment (MS/UE). GERAN/UTRAN

includes 2 network elements, base station and BSC/RNC. The conventional 2G/3G BS

connects to BSC/RNC via Abis/Iub interface. Figure 1-1 shows a conventional

GSM/EDGE/UMTS network system.

Figure 1-1 Conventional GSM/EDGE/UMTS Network System

In Figure 1-1, GPRS/EDGE and UTRAN are two separated radio networks. When ZTE

2G/3G dual-mode base station is introduced, the 2G/3G radio networks will be converged

into one and this will decrease the network construction cost greatly. The GSM/UMTS

integrated network is shown in Figure 1-2.

Figure 1-2 ZTE SDR BS Composed GSM/UMTS Network

SDR BS

SDR BS

BSC/RNC

HLR

PSTN

IP Network

MGW MSCS

SGSN GGSN

Software DefinedRadio for both G/UGSM

SDR BS flexibly configured as aGSM and UMTS system withonly software configuration

BS BSC

2G BSS

Node

Node

RNC

RNC

HLR

PSTN

IP Network

MGW MSCS

SGSN GGSN

3G UTRAN

GSM

UMTS

UMTS


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2 © 2011ZTE CORPORATION. All rights reserved. ZTE Confidential Proprietary

The purpose of this document is to describe the new-generation distributed Software

Defined Radio (SDR) base station – ZXSDR BS8700 (hereafter BS8700), which consists

of the core BBU (B8200) and series RRUs. BS8700 is based on the ZTE unified

MicroTCA platform and adopts MCPA technology radio part, to be the new type of ZTE

mobile BS. This revolutionary BS platform supports all kinds of wireless access

technology, including GSM, UMTS, CDMA2000 WiMAX and LTE.

ZXSDR BS8700 can be divided into different types of distributed BS through connecting

with different RRUs, according to different networking modes and coverage scenarios.

B8200+R8860E/R8882: Dual-mode macro distributed base station, mainly used for

outdoor and indoor GSM/UMTS dual-mode coverage.

B8200+ R8840/R8880A: UMTS mode macro distributed base station, mainly used

for outdoor and indoor UMTS mode coverage.

B8200 provides Iub/Abis interfaces with several types of physical interfaces such as

E1/T1, STM-1, FE and GE to connect with RNC/BSC, and CPRI interfaces to connect

with RRUs. B8200 supports IP transmission and hybrid transmission. B8200 provides at

most 12 pairs of CPRI optical interfaces to RRUs.

B8200 and RRU can support star, chain and mixed networking. In star networking, 12

optical interfaces are available to connect to 12 RRUs. In chain networking, RRU is able

to cascade up to 4 levels at maximum.

The networking diagram including B8200, RNC/BSC and RRU is shown in Figure 1-3.

Figure 1-3 Networking Diagram (B8200, RNC/BSC and RRU)

In the following chapter, a general description will be given to GSM/UMTS dual-mode

Base Station – ZXSDR BS8700.


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2 Product Highlights

ZXSDR BS8700 (hereafter BS8700) is the multi-carrier, dual-mode distributed base

station of ZXSDR BS series. By adopting advanced MicroTCA platform and SDRtechnology, BS8700 supports GPRS/EDGE/E-EDGE and UMTS/HSPA/HSPA+

simultaneously. Its main advantage is the flexibility which brings the possibility to support

GSM and UMTS on a single base station.

Compared with traditional base station, ZXSDR BS8700 has following highlight features:

Series RRUs, suitable for multi indoor and outdoor coverage scenarios.

Series RRUs have high output power, including R8840, R8860E, R8880A,

R8882.

RRU - Compact Design, Light, Easy Installation

R8840 is only 19 liters in volume and 16.5 kg in weight under typical power

output. With 2T4R design, R8882 supports 2 sectors or 1 2*2 MIMO sectors. All

kinds of RRU can be mounted on the pole, the wall, the tower top, etc. No

dedicated equipment space is required, easy for site selection and fast network

deployment.

RRU – Installed Near Antenna, Saving Feeder Loss, Enhancing Coverage

Series RRU can be remotely installed near the antenna system to lower the

feeder loss. The coverage gain can reach more than 3 dB compared with

traditional macro base station.

BBU - Plug-in Design for Shelf, Zero Footprint, Convenient Deployment

B8200 adopts Plug-in design with 19-inch, 2U in height and 8.75 kg in weight. It

can be conveniently mounted on the wall, ground, or in the 19-inch rack, etc.

Shared Baseband Resources, Dynamic Traffic Adjustment

Suitable for traffic transferring dynamically or outburst areas, such as CBD,

uptown or beauty spots, avoiding resources waste.

Various Interfaces, Flexible Networking ATM/IP dual protocol stacks, providing with various interfaces such as

E1/T1/STM-1/GE, etc. It supports SDH networking, hybrid transmission and

all-IP networking.

G/U Dual-Mode Configuration, Smoothly Evolving to Future Network

Supports GSM/GPRS/EDGE/ E-EDGE/UMTS/HSPA/HSPA+.

Multi-Carrier and Multi-Frequency


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R8882 has the capability to support 2*4 GSM TRX or 2*2 UMTS carriers. If GSM

and UMTS are configured at the same spectrum, each radio unit supports

2*(4G+1U) or 2*(2G+2U).

3 Functionality

3.1 Basic Functions

BS8700 supports the following basic functions on Um/Uu, Abis/Iub and O&M interfaces.

On Um/Uu interface, BS8700 supports UE access and radio link transmission,

including RF processing, channel coding and decoding, channel multiplexing and

de-multiplexing, measuring and reporting, power control, transmit diversity, receivingdiversity, calibration and synchronization.

Via Abis/Iub interface, BS8700 connects with BSC/RNC and supports the following

functions: cell management, BS measurement information report, system

Information broadcast, access control implementation from BSC/RNC, mobility

management, radio resource management and control, FP process and ATM

transmission management.

On operating and maintenance interface, BS8700 provides system management

functions including configuration management, alarm management, status check

and system monitor.

Besides, BS8700 provides following functions:

Supports GSM Phase I/GSM Phase II/GSM Phase II plus standards.

Supports 3GPP R99, R4, R5, R6, R7, and R8.

Supports GSM/UMTS 900MHz, EGSM 900MHz, GSM/UMTS 850MHz GSM/UMTS

1800MHz, GSM/UMTS 1900MHz, and UMTS 2100MHz.

Supports socket-independent board’s installation to support different frequencies inthe same cabinet.

Supports CS1~CS4 of GPRS, MCS1~MCS9 of EDGE.

Supports reduced TTI, fast ACK/NACK reporting, MS receiving diversity, downlink

dual carriers and EGPRS2-A of E-EDGE.

Supports dynamically changing channel coding according to monitoring and

measurement results.


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Supports space diversity, frequency diversity, time diversity, polarization diversity

and maximum ratio combination diversity.

The receiving part adopts Viterbi algorithm for coding to improve channel decoding

capability and system receiving sensitivity.

Supports frequency hopping.

Supports DTX sending and decreasing transmitting power, lowering the total

interference in the air.

Supports common BCCH; different carriers can be used for different services and

share the same BCCH.

Supports BSS local switch; the voice data frame will switch in BSS and will not go to

core network.

Supports dynamic power sharing; output power of MCPA can be shared by multi

carriers in multi-carrier BTS.

Supports intelligent cell shutdown to shut down some cells of the base station in

case of the traffic is very low.

3.2 Service Functions

BS8700 supports the following services:

GSM/GPRS/EDGE/E-EDGE:

FR: Full Rate voice service

EFR: Enhanced Full Rate voice service

HR: Half Rate voice service

AMR: Adaptive Multi-Rate voice service

F9.6: 9.6 Kbit/s CS domain data service

GPRS/EDGE/E-EDGE

Location service:

Supports Cell ID, Cell ID+RTT and AGPS location services

R99 service:

CS domain service: 8 Kinds of AMR voice services, CS 64Kbps

PS domain service: UL/DL 64Kbps, UL/DL 128Kbps, UL/DL 384Kbps


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Concurrent service: CS domain (AMR 12.2Kbps, CS 64Kbps) + PS domain (64Kbps,128Kbps, 384Kbps)

HSDPA Service:

Supports 14.4Mbps data rate

Supports 15 codes

Supports HSDPA and R99 on both independent and shared carriers

Supports intra-frequency, inter-frequency handover and handover between HSDPAand R99

Supports concurrent services

Supports streaming services

HSUPA Service:

Supports 5.76Mbps uplink data rate

MBMS Service:

Supports broadcast and multicast functions, multicast supports PtP and PtM

Supports mobility management

Supports streaming, background MBMS services

HSPA+ Service:

21.6Mpbs downlink data with 64QAM

28.8Mpbs downlink data with 16QAM + 2*2 MIMO

43.2Mpbs downlink data with 64QAM + Dual-Cell combination


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4 System Architecture

4.1 Product Physical Structure

ZXSDR BS8700 consists of the BBU (B8200) and series of RRUs. The physical

structures of ZXSDR BS8700 in different combinations are shown in Figure 4-1.

Figure 4-1 Example of ZXSDR BS8700 Physical Structure

4.2 Hardware Architecture

BS8700 hardware architecture is shown in Figure 4-2.


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Figure 4-2 BS8700 Hardware Structure

The BBU of ZXSDR BS8700 can be configured in GSM/UMTS single mode and G/U

dual-mode. It supports up to 30 CSs in UMTS single mode, providing 192 CEs baseband

processing capability DL/UL simultaneously, up to 60 TRXs in GSM single mode.

There are 5 kinds of ZXSDR BS8700 RRUs. They are mainly used for outdoor macro

coverage and also used for indoor coverage signal source.

R8840 - 2 receiving paths and 1 transmitting path (1T2R). Each one can support 1

sector in UMTS on 2100MHz/AWS. Its output power achieves 60W (TOC). R8840

supports 4 carriers.

R8860E - 2 receiving paths and 1 transmitting path (1T2R). Each one can support 1

sector in GSM/UMTS on 850/900/1800/1900MHz. Its output power achieves 80W

(TOC). R8860E supports 6 GSM TRXs or 4 UMTS carriers or 4G1U/2G2U.

R8880A - 2 receiving paths and 2 transmitting paths. Each one can support 2*2

MIMO in HSPA+ mode on 2100MHz. Its output power achieves up to 2*60W (TOC).

R8880A can be configured as UMTS mode. R8880A supports 2*4 carriers.

R8882 - 4 receiving paths and 2 transmitting paths. Each one can support 2 sectors

in GSM/UMTS 900/1800MHz, or 1 sector with 2*2 MIMO in HSPA+/LTE mode. Its

output power achieves up to 2*60W (TOC) for dual-mode. R8882 can be configured

as GSM only, UMTS only, LTE only or mixed mode. R8882 can be configured to 1 to

2*4 TRXs in GSM mode, or 1 to 2*2 carriers in UMTS mode. In dual-mode, one

R8882 supports 2* (4G+1U) or 2* (2G+2U).

Baseband Unit

Radio Unit

SA/SE/NIS CC

BP(UBPG/BPC)

/BPC)FS

RRU

E1

GE/FE

Clock

Data

Control Signaling

CPRI

Antenna

RF Unit

STM-


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4.2.1 Baseband Unit

Baseband unit in BS8700 is responsible for processing the baseband signals.

Single UBPG board supports GSM/GPRS/EDGE/E-EDGE 12 TRXs

Single BPC supports 6 CSs, uplink 192 CEs and downlink 192 CEs

In typical configuration, the BS8700 baseband unit provides 4 baseband processing

board slots. 1 more BP board can be available if only one FS board is configured.

Figure 4-3 B8200 Baseband Unit of BS8800

B8200 adopts standard 19 inches, and 2U high rack structure. The dimension is: 88.4

mm*482.6 mm*197 mm (H*W*D) and weight: 8.75 kg (full configuration).

The Baseband unit consists of control & clock board, fabric switch board, baseband

processing board, site alarm board, site alarm extension board (optional), power module,

and fan module. B8200 can support up to 60TRX for GSM or 36CS for UMTS with 960CEThe hardware is ready to support HSPA+.

Table 4-1 Main Board List of Baseband Unit

Board Name Function DescriptionMin/Max

ConfigurationSlot No.

CC Control & Clock Board 1/2 6,7

FS Fabric Switch Board 1/2 4,5

UBPGUniversal Baseband Processing boardfor GSM

1/5 4,8-11

BPC Base band Processing type C for UMTS 1/5 4,8-11

SA Site Alarm Board 1/1 3

SE Site alarm Extension Board 0/1 11

PM Power Module 1/2 1,2

FAM FAN Module 1/1 12

4.2.1.1 Control & Clock Board (CC)

CC is control and clock board, used for control and management of baseband unit,

providing Ethernet and system clock. The CC panel is illustrated in Figure 4-4.

1

23

4

567

891011 12

PM

SA

CC

FSS UBPG/BPC

FAM

B8200 can support up to 60TRX for GSM or 30CS for UMTS with 960CE.


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Figure 4-4 CC Panel

Description of CC panel interfaces is shown in Table 4-2.

Table 4-2 CC Panel Interface List

Interface Name Description

ETH0Ethernet interface between BS8700 and BSC/RNC, adaptinginterface of 10M/100M/1000M.

ETH1Ethernet interface used for cascading, debugging or local

maintenance, adapting interface of 10M/100M/1000M.

TX/RXUsed for Ethernet interface connection between BS8700 andBSC/RNC. This interface is 100M/1000M Ethernet optical interface.

EXTExternal communication port, connected to external receiver,

Mainly 485,PP1S+/2M+ interfaces.

REF External connection GPS antenna, SMA(F) interface

Control & clock board functions are as follows:

Ethernet switching function, implementing data switching for service and control flow

within the system

Abis/Iub interface protocol processing

Monitoring, controlling and maintaining of the base station system, providing LMT

interface

Managing software versions of boards and programmable components, and

supporting local and remote software upgrade

Supervising the running status of each board within the system

Synchronizing with various external reference clocks, including the Abis/Iub interfacerecovery clock, the GPS clock and the clock provided by BITS; The CS can select

one according to the actual configuration.

Generating and delivering the clock signal demanded by each part

Providing GPS receiver interface and managing the GPS receiver

Providing a real-time clock for system operation and maintenance; the real-time

clock can be calibrated


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The board power interface (-48V, -48V ground, protection ground, digital ground)

has reverse connection protection function

Reading various hardware management marks in the system, including the rack

number, backplane type number, slot number, board function type, board version,

and board function configuration mark

Supporting primary/slave switchover

4.2.1.2 UBPG Board

UBPG is the GSM baseband processing board. It processes the physical layer protocol

and frame protocol specified by 3GPP. UBPG panel is illustrated in Figure 4-5.

Figure 4-5 UBPG Panel

UBPG main function as follows:

Achieving rate adaptation, channel coding, interleaving, encryption, generating

TDMA shock burst, GMSK/8PSK modulation, IQ baseband digital signals output.

Achieving uplink IQ data receiving, receiver diversity combiner, digital demodulation

(GMSK&8PSK, equilibrium), decryption, de-interleaving, demodulator, and rate

adaptation. GE Ethernet interface transmit it to CC board for processing.

Radio link synchronization, transmission frame processing

Measuring parameters required in power control and handover

Diversified transmission and receiving

Communicating with CS via Ethernet interface

Reading all the hardware management identifiers, including the backplane type

number, slot number, board function type, board version, board function

configuration identifier, and the CPU serial number.

4.2.1.3 BPC Board

BPC is the UMTS baseband processing board. It processes the physical layer protocol

and frame protocol specified by 3GPP. BPC panel is illustrated in Figure 4-6.


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Figure 4-6 BPC Panel

BPC has no external interface, its main function as follows:

Achieving downlink baseband signal processing, including downlink data coding,

multiplexing, rate adaptation, channel mapping, spread spectrum and

scrambling power regulation and channel compositing.

Achieving uplink baseband signal processing, including uplink data RAKE receiving,

demodulator, transmitting the data to lub interface for processing.

Downlink data coding/multiplexing, rate matching, channel mapping, spreading and

scrambling, power adjusting, and channel compositing.

Uplink signal RAKE receiving and channel decoding

Radio link synchronizing and frame processing

Measuring parameters required in power control and handover

Softer handover and carrier diversity.

Communicating with the CS via the Ethernet interface

Reading all the hardware management identifiers, including the backplane type

number, slot number, board function type, board version, board function

configuration identifier, and the CPU serial number

4.2.1.4 Fabric Switch Board (FS)

FS is fabric switch board which provides baseband optical interface between BBU and

RRU and process the IQ signal. FS panel is illustrated in Figure 4-7.

Figure 4-7 FS Panel

Description of FS panel interfaces


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Table 4-3 FS Panel Interface List


TX0 RX0～TX5 RX56 pairs of optical interfaces, connected to

RRU

The FS has the following functions:

Receiving the signal from the rear board in the downlink and retrieving the data and

timing.

Multiplexing the received data and retrieving I/Q signal

I/Q mapping in the downlink and multiplexing I/Q signal to the optical signals.

Receiving the I/Q in uplink and de-multiplexing/mapping into I/Q signal

Transmitting the multiplexed I/Q signal to BP

Exchanging CPU interface signaling through HDLC interface with RU module

MicroTCA protocol based module management function

4.2.1.5 Site Alarm Board (SA)

SA is a site alarm board, illustrated in Figure 4-8.

Figure 4-8 SA Panel

Description of SA panel interface is shown in Table 4-4.

Table 4-4 SA Panel Interface List


-

8 E1/T1 interfaces,

1 RS485,

1RS232 interface,

6+2 dry contacts ( 6 input interfaces, 2 input & output interfaces )

The SA has the following functions:

Providing E1/T1 transmission interfaces for Abis/Iub.

Providing site alarm monitoring interfaces.


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Providing FAM's alarm and rate control.

4.2.1.6 Site alarm Extension Board (SE)

SE is site alarm extension board, and SE panel is illustrated in Figure 4-9.

Figure 4-9 SE Panel

Description of SE panel interfaces is shown in Table 4-5.

Table 4-5 SE Panel Interface List


-

8 E1/T1 interfaces,

1 RS485,

1RS232 interface,

6+2 dry contacts ( 6 input interfaces, 2 input & output interfaces )

SE shares the bottom-right slot with UBPG/BPC and has the following functions:

Providing E1/T1 transmission interfaces for Abis/Iub.

Providing site alarm monitoring interfaces.

It is used to extend the port number if SA cannot fulfill the requirements.

4.2.1.7 Power Module (PM)

PM is power module, and PM panel is illustrated in following figure.

Figure 4-10 PM Panel

Description of PM panel interface is shown as follows.


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Table 4-6 PM Panel Interface List


MON Debugging interface, RS232 interface

-48V/-48VRTN -48V input

ON/OFF Power switch, turn on/off 12V power to/from BBU

The PM has the following functions:

16 internal interfaces for +12 V load power;

16 internal interfaces for +3.3 V management power;

EMMC management;

Measurement and protection of input over-voltage/under-voltage;

Output over-current protection and load power management.

4.2.1.8 Fan Array Module (FAM)

FAM is fan array module which panel is illustrated as follows.

Figure 4-11 FAM Panel

The FAM main functions are as follows:

System temperature monitoring and controlling;

Monitoring, controlling, and reporting fan state.

4.2.2 Radio Unit

Radio unit mainly processes the conversion between baseband signals and RF signals.

In the BS8700, there are 5 kinds of radio units, respectively are: R8840, R8860E,

R8880A, R8882. Details are shown as below.


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4.2.2.1 R8840

R8840 is a UMTS multi-carrier radio unit, working on 2100MHz/AWS. R8840 supports

maximum 4 carriers, the output power is 60W.

R8840 module consists of MCPA (multi-carrier power module) module, transceiver

module, duplex filter LNA and RPWAC/DC (Power for AC or DC). There are one TX/RX

port and one RX port for connecting antenna. R8840 employs compact cabinet design,

as shown below.

4.2.2.1.1 Physical structure

Figure 4-12 ZXSDR R8840 Physical Structure

All R8840 external interfaces are located at the bottom, as shown in the following figure.

Figure 4-13 ZXSDR R8840 External Interfaces


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The interfaces are described in the following table.

Table 4-7 ZXSDR R8840 External Interfaces Description

S.N. Label Interface Interface Type/Connector

1 LC1BBU and RRUInterface /RRUcascading interface

LC-mode optical interface (IEC 874)

2 LC2BBU and RRUInterface /RRUcascading interface


3 AISG AISG interface8-core aerial socket (IEC60130-9-ED)

4 MonitorExternal deviceinterface

37-pin aerial socket

5 PWR Power supply interface

AC interface: ConnectorXCE18T3K1P1-02+FJJP1-7.5Cable section area: 3*1 mm

2

DC interface: ConnectorXCG18T4K1P1-01+XC18FJJP1-10.5Cable section area: 4*1.5 mm

2

6 RXInterface to receivediversity RF cable

50 Ω N-mode connector

7 RX/TXInterface totransmit/receive maindiversity RF cable

50 Ω N-mode connector

8 RXoutFrequency extension

interface

N-KY (MIL-C-39012 or IEC169-16)

9 RXinFrequency extensioninterface

N-KY (MIL-C-39012 or IEC169-16)

10 GND Equipment grounding Cable section area: 16 mm2

4.2.2.1.2 Hardware Structure

R8840 includes the following 4 main hardware modules:

- RRU Transceiver (RTR)

- Power Amplifier (PA)

- Duplex Filters Low-noise amplifier (DFL)

- Power supply (PWR)

The hardware structure of R8840 is shown in Figure :


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Figure 4-14 ZXSDR R8840 System Structure

RTR

PWR DFL

CPRI 1

CPRI 2

•PA Out

AC/DC in ANT1

PA

PA Out

LMT

AISG

ANT2

CPRI Links

MON

4.2.2.1.2.1 RRU Transceiver (RTR)

- Process 2 paths receiving and 1 path transmitting signal;

- Uplink & downlink transition for radio link signal;

- Downlink IQ signal multiplexing, uplink IQ signal demultiplexing;

- Signal amplification, filter, and digit/analog conversion;

- Optical and electric signal conversion;

- Extract clock reference signal from baseband unit, provide clock for different

modules;

- RTWP and TSSI measurement report;

- Standing wave ratio (SWR) measurement report;

- Hardware failure self-test and alarm;

- Environment detection;

- Provide 2 paths of baseband –RF interface and 4 paths of external alarm input, and

a R485 interface, a FE interface, a RS232 interface, and a AISG interface;


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- Provide reset function.

4.2.2.1.2.2 Power Amplifier (PA)

- Amplify downlink RF signal input by RTR, and output it to DFL;

- Provide digital pre-distortion feedback signal for RTR;

- Provide power amplification output control;

- Feedback forward power coupling signal to RTR, and RTR will do forward power

inspection;

- Feedback backward power coupling signal to RTR, and RTR will do backward

power (SWR) inspection;

- Provide PA internal temperature data to RTR and RTR will do temperature

inspection.

4.2.2.1.2.3 Duplex Filter Lower-noise amplifier (DFL)

- Combination and separation of receiving and transmitting signal;

- Filter function of receiving & transmitting signal;

- Low-noise amplification function;

- Provide DFL alarm inspection function.

4.2.2.1.2.4 Power Supply (PWR)

- Provide power supply function and support AC or DC input;

- Inspect input overvoltage or under-voltage, input power disconnection, output

overvoltage or under-voltage, output over-current alarm, and report it to RTR board.

4.2.2.1.3 Software Architecture

The software architecture of R8840 can be divided into two layers: SDR unified platformsoftware and application software. The architecture is shown in the following Figure :


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Figure 4-15 ZXSDR R8840 Software Architecture

The Operating Administration and Maintenance (OAM) sub-system is the application

layer. Its main functions contain software downloading, configuration, management,

system maintenance and measurement.

The Operation Support Sub-system (OSS) is the supporting layer in this entire framework,

which is a hardware independent platform for running software and provides basic

functions like scheduling, timer, memory management, communication, sequencing

control, monitoring, alarming and logging.

The Linux is the operating platform communicating to the hardware components.

The Board Support Package (BSP) provides the device driver & initiation and supports

basic functions like alarming and monitoring. It also provides the relating interfaces and

services to the operating system.

4.2.2.1.4 Technical Specifications

4.2.2.2.4.1 Physical Indices

ZXSDR R8840 employs the compact design, whose physical indices are listed below.

Table 4-6 ZXSDR R8840 Physical Indices

Item Index

Dimension (H*W*D) 370*320*160 mm

Weight 16.5 Kg

Color Silver gray

Hardware

BSP

OSS

Linux

OAM

SDR Unified

Platform SW

Application

SW

Hardware

System


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4.2.2.2.4.2 Operation Frequency Band

Table 4-8 ZXSDR R8840 Operation Frequency Band

Item Index

Operation frequency band 2100M/AWS

4.2.2.2.4.3 Capacity

Table 4-9 ZXSDR R8840 Capacity

Item Index

Capacity 4 carriers

4.2.2.2.4.4 Receiver Sensitivity

R8840 receiver sensitivity is shown as following table:

Table 4-10 ZXSDR R8840 Receiver Sensitivity

Item Index

Receiver sensitivity-126.5 dBm @ single antenna

-129.2 dBm @ dual antennas

4.2.2.2.4.5 TOC Output Power

Table 4-11 ZXSDR R8840 TOC Output Power

Mode TOC Output Power

UMTS 60W

R8840 uses one MCPA module with maximum 60W TOC Output Power. Output power

divides to license, one license has 20W, the first license is free. According to the quantity

of output power licenses to configure how much output power for each carrier. It’s very

flexible and customized to configure the total 60W sharing for one or two, three or four

carriers. Example with S1 configuration, maximum output power is 60W can be

configured. S3 configuration, output power could be 20W/carrier.

4.2.2.2.4.6 Power Supply

Table 4-12 ZXSDR R8840 Power SupplyItem Indices

power supplyDC: -48 V (-37 V – -60 V DC)

AC: 110 V/220 V (90 V – 290 V AC)

4.2.2.2.4.7 Power Consumption

Table 4-13 ZXSDR R8840 Power Consumption

Item UMTS, 20W/Carrier

Typical powerconsumption

100W (S1) 125W (S2) 160W (S3)


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Maximum powerconsumption

240W (S3)

4.2.2.2.4.8 Transmission

ZXSDR R8840 is connected to BBU through CPRI interfaces.

Table 4-14 ZXSDR R8840 CPRI Interfaces

Item Value Interface Kind Speed Standard

CPRI interface 2 SFP (LC) 1.25Gbps CPRI V2.0

4.2.2.2.4.9 Working Environment

Table 4-15 ZXSDR R8840 Environment Condition Compatibility

Item Index

Temperature -40 to +55 °C

Relative humidity 5% to 100%

Waterproof/dustproof IP65

Ground≤5 Ω; earth resistance can be less than 10 Ω inthunder-less area where there less than 20 thunderstormdays per year.

Storage

Indoor pack deposited

Temperature: -40 °C to 70 °C

Relative Humidity: 5% to 100%

4.2.2.2.4.10 Electromagnetic Compatibility

YD/T 1595.2-2007

ETSI EN 301 489-01, ETSI EN 301 489-23

ETSI EN 300 386 –V1.3.2

(CISPR22) Class B

Directive 1999/5/EC (R&TTE)

4.2.2.2 R8860E

R8860E is multi-carrier RF module, working on 850/EGSM/900/1800/1900MHz. R8860E

can be configured as GSM only, UMTS only or mixed mode module. R8860E can be

configured to 1 to 6 TRXs in GSM mode. In case of GMSK modulation, 80W TOC output

power can be provided. If R8860E is used as UMTS mode, it can support 4 carriers with

80W TOC output power. In mixed mode, R8860E can support 4 GSM TRXs and 1 UMTS

carriers or 2 GSM TRXs and 2 UMTS carriers.


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R8860E module consists of MCPA module, transceiver module, and duplex filter LNA.

There are one TX/RX port and one RX port for connecting antenna. R8860E employs

compact cabinet design, as shown below.

4.2.2.2.1 Physical Structure

Figure 4-16 ZXSDR R8860E Physical Structure

All R8860E external interfaces are located at the bottom, as shown in the following figure.

Figure 4-17 ZXSDR R8860E External Interfaces


Table 4-16 ZXSDR R8860E External Interfaces Description

No Label Interface Interface type / connector

1 LC1BBU and RPU Interfaces/ RRU concatenationinterface

LC optical interface (IEC 874)

2 LC2BBU and RPU Interfaces/ RRU concatenationinterface

LC optical interface (IEC 874)

3 AISG AISG device interface 8-cores socket (IEC 60130-9-ED)


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4 Mon External device interface 37-core aviation socket

5 PWR Power supply interface

AC interface: ConnectorXCE18T3K1P1-02+FJJP1-7.5Cable section area: 3*1 mm

2

DC interface: ConnectorXCG18T4K1P1-01+XC18FJJP1-10.5Cable section area: 4*1.5 mm

2

6 RXInterface to receivediversity RF cable

50 ohms DIN-mode Connector

7 RX/TXInterface to transmit /receive main diversityRF cable

50 ohms DIN-mode Connector

8 RXoutFrequency expansioninterface

N-KY (MIL-C-39012 or IEC169-16)

9 RXin

Frequency expansion

interface N-KY (MIL-C-39012 or IEC169-16)

10 GND Machine Grounding Section area of cable is 16 mm2


R8860E includes the following 6 main hardware modules:

- Advanced Dual-mode Transceiver board (ADTR)

- Power Amplifier (PA)

- Duplex Filters Low-noise amplifier (DFL)

- RRU Interface Exchange board (RIE board)

- Protect Interface Board (PIB)


The hardware structure of R8860E is shown in Figure 18:


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Figure 4-18 ZXSDR R8860E System Structure

RIE

ADTR

PWR DFL

CPRI 1

CPRI 2

•PA Out

AC/DC in ANT1

R8860E

PA

PA Out

LMT

AISG

ANT2

CPRI Links

MON

PIB

4.2.2.2.2.1 Advanced Dual-mode Transceiver (ADTR)

- Process 2 paths receiving and 1 path transmitting signal;

- Uplink & downlink transition for radio link signal;

- Downlink IQ signal multiplexing, uplink IQ signal demultiplexing;

- Signal amplification, filter, and digit/analog conversion;

- Optical and electric signal conversion;

- Extract clock reference signal from baseband unit, provide clock for different

modules;

- RTWP and TSSI measurement report;

- Standing wave ratio (SWR) measurement report;

- Hardware failure self-test and alarm;

- Environment detection;

- Provide 2 paths of baseband –RF interface and 4 paths of external alarm input, and

a serial port, a FE interface, a RS232 interface, and a AISG interface;

- Provide reset function.

4.2.2.2.2.2 Power Amplifier (PA)

- Amplify downlink RF signal input by ADTR, and output it to DFL;


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- Provide digital pre-distortion feedback signal for ADTR;

- Provide power amplification output control;

- Feedback forward power coupling signal to ADTR, and ADTR do forward power

inspection;

- Feedback backward power coupling signal to ADTR, and ADTR do backward power

(SWR) inspection;

- Provide PA internal temperature data to ADTR and ADTR will do temperature

inspection.

4.2.2.2.2.3 Duplex Filter Low-noise amplifier (DFL)

- Combination and separation of receiving and transmitting signal;

- Filter function of receiving & transmitting signal;

- Low-noise amplification function;

- Provide DFL alarm inspection function.

4.2.2.2.2.4 RRU Interface Exchange board (RIE)

- Access following these signals from PIB board: Ethernet signal, 485 dry contact,

LED indicator, single board reset signal, jumper, button signal, digital ground;

- Transmit the access signal by the socket and finish the function of interface

conversion.

4.2.2.2.2.5 Protect Interface Board (PIB)

- Access following these signals from DTR board: Ethernet signal, LED indicator,

single board reset signal, jumper, button signal, digital ground, power, ground and

485 signal of electrically tuned antenna;

- Power, ground, and 485 signal of electrically tuned antenna, output to electrically

tuned antenna by socket; other signals are introduced to outside by test socket, todo debug and use as indicative signal;

- Finish AISG interface power filtering and 485 lightening protection;

- Finish interference protection for indicators, reset signals, buttons, and jumpers.

4.2.2.2.2.6 Power Supply (PWR)

- Provide power supply function and support AC or DC input;


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- Inspect input overvoltage or under-voltage, input power disconnection, output

overvoltage or under-voltage, output over-current alarm, and report it to DTR board.


The software architecture of R8860E can be divided into two layers: SDR unified platform

software and application software. The architecture is shown in the following Figure -19:

Figure 4-19 ZXSDR R8860E Software Architecture














ZXSDR R8860E employs the compact design, whose physical indices are listed below.

Hardware

BSP

OSS

Linux

OAM

SDR Unified

Platform SW

Application

SW

Hardware

System


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Table 4-17 ZXSDR R8860E Physical Indices

Item Index

Dimension (H*W*D) 370*320*197 mm

Weight 20 Kg

Color Silver gray


Table 4-18 ZXSDR R8860E Operation Frequency Band

Item Index

Operation frequency band850M/900M/1800M/1900M (DC input)

900M/1800M (AC input)


Table 4-19 ZXSDR R8860E Capacity

Item Index

Capacity

4 TRXs + 1 carrier @ 850M/900M

2 TRXs + 2 carriers @ 850M/900M

4 carriers @ 850M/900M

6 TRXs @ 850M/900M/1800M/1900M


R8860E receiver sensitivity is shown as following table:

Table 4-20 ZXSDR R8860E Receiver Sensitivity

Item Index

Receiver sensitivity

-113.5 dBm @ GSM single antenna

-126.4 dBm @ UMTS single antenna

-129.1 dBm @ UMTS dual antennas


Table 4-21 ZXSDR R8860E TOC Output Power

Mode TOC Output Power

GSM GMSK 80W/ 8PSK 50W

UMTS 80W

R8860E uses one MCPA module with maximum 80W TOC Output Power. Output power



flexible and customized to configure the total 80W sharing for 1-6 TRXs in GSM mode,

1-4 Carriers in UMTS mode or share between GSM and UMTS in mixed GU mode.


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Table 4-22 ZXSDR R8860E Power Supply

Item Indices

power supplyDC: -48 V (-37 V – 57 V DC)

AC: 220 V (220 V – 240 V AC)


Table 4-23 ZXSDR R8860E Power Consumption (DC input)

Item FrequencyGSM

13W/TRX

UMTS

20W/Carrier

GSM+UMTS

10W/TRX,20W/Carrier


850M/900M 195W (S6) 120W (S1)215W

(G_S4+U_S1)1800M/1900M 210 W (S6) N/A N/A


850M/900M 315W

1800M/1900M 335W

Table 4-24 ZXSDR R8860E Power Consumption (AC input)

Item FrequencyGSM

13W/TRX

UMTS

20W/Carrier

GSM+UMTS

10W/TRX,20W/Carrier

Typical power

consumption

850M/900M 205W (S6) 125W (S1)225W

(G_S4+U_S1)

1800M/1900M 220 W (S6) N/A N/A


850M/900M 330W

1800M/1900M 355W


ZXSDR R8860E is connected to BBU through CPRI interfaces.

Table 4-25 ZXSDR R8860E CPRI Interfaces




Table 4-26 ZXSDR R8860E Environment Condition Compatibility

Item Index





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Ground≤5 Ω; earth resistance can be less than 10 Ω inthunder-less area where there less than 20 thunderstormdays per year.

Storage





YD/T 1595.2-2007

ETSI EN 301 489-01, ETSI EN 301 489-23

ETSI EN 300 386 –V1.3.2

(CISPR22) Class B


4.2.2.3 R8880A

R8880A is a multi-carrier RF module; working on 2100MHz. R8880A can be configured

as UMTS mode. It processes 2 received signals and 2 transmitted signals. Each one can

support 2*2 MIMO in HSPA+ mode on 2100MHz. Its output power is up to 2*60W (TOC).

It is mainly used for outdoor macro coverage and also used for indoor coverage signal

source. R8880A supports 2*4 carriers.

R8880A employs compact cabinet design, as shown in the following in detail.


Figure 4-20 ZXSDR R8880A Physical Structure


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All R8880A external interfaces are located at the bottom of the box, as shown in the

following figure.

Figure 4-21 ZXSDR R8880A External interfaces

1 2 3 4 5

6 7 8


Table 4-27 ZXSDR R8880A External Interfaces Description


1 OP1BBU and RRUInterface /RRUcascading interface


2 OP2BBU and RRUInterface /RRUcascading interface


3 AISG AISG interface8-pin circle connector (IEC60130-9-ED)

4 MONExternal deviceinterface

37-pin aviation connector

5 PWRPower supplyinterface

DC interface:

ConnectorXCG18T4K1P1-01+XC18FJJP1-10.5

Section area of cable is 4*1.5 mm2

6 ANT1(TX1/RX1)Interface totransmit/receivediversity RF cable

50 Ω DIN-mode connector

7 ANT2(TX2/RX2)Interface totransmit/receivediversity RF cable


8 GNDEquipmentgrounding

Cable section area: 16 mm2


R8880A includes the following 5 main hardware modules::


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- Transceiver for UMTS (TRU)

- Duplexer & LNA

- Power Amplifier for UMTS (PAU)


- Protect Interface Board (PIB)

The hardware structure of R8880A is shown in Figure :

Figure 4-22 ZXSDR R8880A System Structure

PIB

TRU

PWR Duplexer&LNA

CPRI 1

CPRI 2

•PA Out

DC in ANT1

R8880A

PAU

PA Out

LMT

AISG

ANT2

CPRI Links

MON

4.2.2.3.2.1 Transceiver for UMTS (TRU)

The TRU has following functions:

- Process 2 received signals and 2 transmitted signals;

- Radio signal up/down conversion;

- Downlink IQ signal multiplexing and uplink signal de-multiplexing;

- Signal amplifying, filter, A/D conversion and D/A conversion;

- Conversion between optical and electric signal;

- Capture reference clock signal from baseband unit and provide clock signal to other

units;


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- Voltage Standing Wave Ratio (VSWR) measurement and report;

- Hardware failure self-detection and alarm;

- Provide communication interfaces, 2 CPRI interfaces, 3 dry contacts, one RS485

serial port for external monitor equipment communication, 1 AISG for electrical tilt

antenna, and 1 fast Ethernet port for LMT;

- Over-heat, over-power and over-standing wave protection;

- Reset function.

4.2.2.3.2.2 Duplexer & Lower Noise Amplifier (LNA)

The duplexer has following functions:

- Combine and isolate transmitted and received signals;

- Filter the transmitted signal and received signal;

- Low Noise Amplifier function.

4.2.2.3.2.3 Power Amplifier for UMTS (PAU)

PAU has the following functions:

- Perform radio signal amplifying function;

- Temperature report function.

4.2.2.3.2.4 Power supply (PWR)

PWR has the following functions:

- Power supply function;

- Monitor input under-voltage and output under-voltage alarm, and report it to TRU;

- Over-current protection.

4.2.2.3.2.5 Protect Interface Board (PIB)

The PIB has following function:

- Lightning protection for AISG and MON.


The software architecture of R8880A can be divided into two layers: SDR unified Platform

software and application software. The architecture is shown in Figure :


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Figure 4-23 ZXSDR R8880A Software Architecture














ZXSDR R8880A employs compact design, whose physical indices are listed below.

Table 4-28 ZXSDR R8880A Physical Indices

Item Index

Dimension (H*W*D) 420*340*140 mm (≤ 20L)

Weight ≤19 Kg

Color Silver gray

Hardware

BSP

OSS

Linux

OAM

SDR Unified

Platform SW

Application

SW

Hardware

System


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Table 4-29 ZXSDR R8880A Operation Frequency Band

Item Index

Operation Frequency Band 2100MHz


Table 4-30 ZXSDR R8880A Capacity

Item Index

Capacity 4 carriers @ 2*2 MIMO


R8880A receiver sensitivity is shown as the following table:

Table 4-31 ZXSDR R8880A Receiver Sensitivity

Item Index

Receiver sensitivity-126.5 dBm @ UMTS single antenna


4.2.2.3.4.5 RRU TOC Output Power

Table 4-32 ZXSDR R8880A RRU TOC Output Power

Item Index

TOC output power 2*60W

R8880A uses two MCPA module with maximum 2*60W TOC Output Power. Output

power divides to license, one license has 20W, the first license is free. According to the

quantity of output power licenses to configure how much output power for each carrier.

It’s very flexible and customized to configure the total 2*60W sharing for 2*4 Carriers.


R8880A adopts a fully decentralized power supply, compatible with -48V DC (-57V to

-40V DC).


Table 4-33 ZXSDR R8880A Power Consumption

Item Index

Typical power consumption 150W (S2@2*20W MIMO)

Maximum power consumption 215W (S2@2*20W MIMO)


ZXSDR R8880A is connected to BBU through CPRI interfaces.


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Table 4-34 ZXSDR R8880A CPRI Interfaces




Table 4-35 ZXSDR R8880A Environment Condition Compatibility

Item Index


Relative Humidity 5% to 100%

Waterproof/Dustproof IP65

Ground≤5 Ω; earth resistance can be less than 10 Ω inthunder-less area where there are less than 20

thunderstorm days per year.

Storage





YD/T 1595.2-2007

ETSI EN 301 489-01, ETSI EN 301 489-23

ETSI EN 300 386 –V1.3.2

(CISPR22) Class B


4.2.2.4 R8882

R8882 is the multi-carrier RF module, featuring 2-way transmitting and 4-way receiving. It

works on 900/1800MHz. R8882 can be configured as GSM only, UMTS only or mixed

mode module. R8882 can be configured to 2*4 TRXs in GSM mode. In case of GMSKmodulation, 2*60W TOC output power can be provided. If R8882 is used as UMTS mode,

it can support 2*2 carriers with 2*60W TOC output power. In mixed mode, R8882

supports 2* (4G+1U) or 2* (2G+2U).

R8882 module consists of MCPA module, transceiver module, and duplex filter LNA.

There are 2 TX/RX port and two RX port for connecting antenna. R8882 employs

compact cabinet design, as shown in following.


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Figure 4-24 ZXSDR R8882 Physical Structure

Nearly all R8882 external interfaces are located at the bottom of R8882 except LMT at its

side, as shown in the following figure.

Figure 4-25 ZXSDR R8882 External Interfaces

1 2 3 4 5

6 7 98 10

R8882 Bottom

R8882 Side


Table 4-36 ZXSDR R8882 External Interfaces Description



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1 PWRPower supplyinterface

DC interface:

ConnectorGJ599/20-C06PN-H//J599/20M1C06aPHN

Section area of cable is4*1.5MM2+2*0.4MM2

2 MONExternal deviceinterface

8-pin circle connector

3 AISG AISG interface 8-pin circle connector (IEC 60130-9-ED)

4 OPT1

BBU and RRUInterface/RRUcascadinginterface


5 OPT2

BBU and RRUInterface/RRUcascading

interface


6 ANT1(TX0/RX0)

Interface totransmit/receivediversity RFcable


7 ANT2(RX2)

Interface toreceivediversity RFcable


8 ANT3(RX3)

Interface toreceivediversity RF

cable


9 ANT4(TX1/RX1)

Interface totransmit /receivediversity RFcable


10 LMTLocalmaintenanceterminal

Ethernet interface


R8882 includes the following 4 main hardware modules:

- Transceiver for Multi modes (TRM)

- FiLter of Dual duplexers (FLD)

- Power Amplifier of Dual channels (PAD)

- EMC Protection Board (EPB)

The hardware structure of R8882 is shown in Figure 26:


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Figure 4-26 ZXSDR R8882 System Structure

TRM PAD

ANT1

EPB

FLD

ANT2

ANT3

ANT4

CPRI 1

CPRI 2

LMT

MON

AISG

DC in

4.2.2.4.2.1 Transceiver for Multi modes (TRM)

The TRM has following functions:

- Process 4 received signals and 2 transmitted signals;

- Communicate with baseband unit and cascading RRU;

- Capture reference clock signal from baseband unit;

- Downlink/uplink IQ signal processing;

- Radio frequency hop function;

- Provide indication light;

- Hardware failure self-detection and alarm;

- Provide communication interfaces, 2 CPRI interfaces, 3 dry contacts, one RS485

serial port for external monitoring equipment, 1 AISG for electrical tilt antenna and 1

fast Ethernet port for LMT;

- Reset function.

4.2.2.4.2.2 Filter of Dual duplexers (FLD)

The FLD includes 2 duplexers and 2 receiving filters and has the following functions:

- Combine and isolate transmitted and received signals;

- Filter the transmitted signal and received signal.


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4.2.2.4.2.3 Power Amplifier of Dual channels (PAD)

The PAD includes 2 PAs and 4 LNAs and has following functions:

- Transmitted signal amplifying;

- Low Noise Amplifier (LNA) function;

- Pre-distortion information feedback;

- Voltage Standing Wave Ratio (VSWR) measurement and report;

- PA switch on/off;

- Temperature detection and alarm;

- Modules inventory management reading/writing.

4.2.2.4.2.4 EMC Protection Board (EPB)

The EPB has following functions:

- -48V DC Power supply function;

- Converter for MON, AISG and power supply interfaces;

- Lightning protection for the AISG, MON, and power supply.


The software architecture of R8882 can be divided into two layers: SDR unified platform

software and application software. The architecture is shown in the following Figure :


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Figure 4-27 ZXSDR R8882 Software Architecture














ZXSDR R8882 employs the compact design, whose physical indices are listed below.

Table 4-37 ZXSDR R8882 Physical Indices

Item Index

Dimension (H*W*D) 480*320*150 mm (≤ 23L)

Weight ≤20 Kg

Color Silver gray

Hardware

BSP

OSS

Linux

OAM

SDR Unified

Platform SW

Application

SW

Hardware

System


48/62




Table 4-38 ZXSDR R8882 Operation Frequency Band

Item Index

Operation frequency band 900MHz / 1800MHz


Table 4-39 ZXSDR R8882 Capacity

Item Index

Capacity

G: 2*4 TRXs

U: 2*3 Carriers@900M

GU: 2*(4 TRXs + 1 Carrier) / 2*(2 TRXs + 2Carriers) @900M

Or 4 TRXs + 1 Carrier@900M + 4 TRXs@1800M

Or 2 TRXs + 2 Carrier@900M + 4 TRXs@1800M


R8882 receiver sensitivity is shown as following table:

Table 4-40 ZXSDR R8882 Receiver Sensitivity

Item Index

Receiver sensitivity

-113.5 dBm @ GSM single antenna




Table 4-41 ZXSDR R8882 TOC Output Power

Item Index

TOC output power 2*60W

R8882 uses two MCPA module with maximum 2*60W TOC Output Power. Output power



flexible and customized to configure the total 2*60W sharing for 2*4 TRXs in GSM modeon 900M/1800M, 2*3 Carriers in UMTS mode on 900MHz or share between GSM and

UMTS in mixed GU mode on 900MHz mode.


R8882 adopts a fully decentralized power supply, compatible with -48V DC (-57V to

-40V DC).


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Table 4-42 ZXSDR R8882 Power Consumption (2*60W)

Item

GSM

15W/TRX

UMTS

20W/Carrier

GSM+UMTS

10W/TRX, 20W/Carrier


310W (900M, S44)

320W (1800M, S44)

235W (S11)

290W (S22)

320W,(G_S44+U_S11)


445W(900M)

455(1800M)


ZXSDR R8882 is connected to BBU through CPRI interfaces.

Table 4-43 ZXSDR R8882 CPRI Interfaces




Table 4-44 ZXSDR R8882 Environment Condition Compatibility

Item Index




Ground ≤5 Ω; earth resistance can be less than 10 Ω inthunder-less area where there less than 20 thunderstormdays per year.

Storage





YD/T 1595.2-2007

ETSI EN 301 489-01, ETSI EN 301 489-23

ETSI EN 300 386 –V1.3.2

(CISPR22) Class B



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4.3 Software Architecture

The software system of BS8700 consists of operating support layer and application layer.

Figure 4-20 BS8700 Software Structure

The operating support layer provides the functions of OAM, DBS, BRS, BRACS, and

SCS to serve different base station mode.

Operating and Maintenance (OAM) provides the configuration, alarm and

performance measurement function.

Data Base Sub-system (DBS) provides the database function.

Bearer Sub-system (BRS) provides protocol stack processing function.

Bearer Access Control Sub-system (BRACS) provides the function of access control

on bear layer.

System Control Sub-system (SCS) provides functions of power control/supply andactive/standby switching.

Operation Support Sub-system is the support layer in this framework, which is a

hardware independent platform for running software and providing basic functions like

scheduling, timer, memory management, communication, sequencing control, monitoring,

alarming and logging.

Board Support Package (BSP) supports the information routing to the GSM, UMTS, LTE

and common parts in the application layer.


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5 Technical Indices

5.1 Technical IndicesTable 5-1 ZXSDR BS8700 Technical Indices

Type Item Indices

PhysicalIndices

Size (H*W*D)(mm)

B8200 88.4*482.6*197

R8840 370*320*160

R8860E 370*197*320

R8880A 420*340*140

R8882 480*320*150

Weight

(kg)

B8200 8.75

R8840 16.5

R8860E 20

R8880A 19

R8882 20

Performance

Indices

WorkingFrequency

R8840 2100 MHz/AWS

R8860E 850/900/1800/1900 MHz

R8880A 2100 MHz

R8882 900/1800 MHz

Capacity

BBU

MaximumCarrier

30 CS (UMTS singlemode)

MaxCarrier/TRX

60 TRX (GSM singlemode)

Max ChannelElement forUMTS

UL: 960 CE

DL: 960 CE

Max ChannelsPer Cell forUMTS

123

MaxThroughput UL: 75 MbpsDL: 216 Mbps

RRU

R8840 (1T2R) U: 4 C

R8860E (1T2R)

G: 6 TRX

U: 4 C

GU: 4 TRX+ 1 C

R8880A (2T2R) U: 2*4 C

R8882 (2T4R)

G: 2*4 TRX

U: 2*2 C

GU: 2* (4 TRX + 1 C) /

2* (2 TRX + 2 C)


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OutputPower

RRU Type Output Power (TOC)

R8840 60W

R8860E 80W

R8880A 2*60W

R8882 2*60W

ReceivingSensitivity

-113.5 dBm @ GSM Single Antenna


-129.2 dBm @ UMTS double antennas

Power

Indices

Powersupply,

voltagerange ofvariation

B8200 DC: -48 V (-40 V - -57 V DC)

R8840

DC: -48 V (-35 V - -60 V DC)

AC: 110 V/220 V (90 V – 290 V AC)

R8860E

DC: -48 V (-37 V - -57 V DC)

AC: 110 V/220 V (90 V – 290 V AC)

R8880A

DC: -48 V (-37 V - -60 V DC)

AC: 110 V (85 V – 135 V AC)

AC: 220 V (165 V – 300 V AC)

R8882 DC: -48 V (-37 V - -57 V DC)

PowerConsumption

Indices

UMTS singlemode

TypeTypical PowerConsumption (W)

B8200 6CS/1 BPC 80

B8200 12CS/2 BPC 115

B8200 18CS/3 BPC 145B8200 24CS/4 BPC 180

R8840 1C/TOC 20W 100

R8840 2C/TOC 40W 125

R8840 3C/TOC 60W 160

R8860E 1C/TOC 20W 155

R8860E 2C/TOC 40W 185

R8860E 3C/TOC 60W 210

R8860E 4C/TOC 80W 230

R8880A S1 1PA/TOC 20W 100

R8880A S2 1PA/TOC 40W 135

R8880A S3 1PA/TOC 60W 165

R8882 (900M) S1 1PA/TOC20W

160

R8882 (900M) S11 2PA/TOC40W

265

R8882 (900M) S2 1PA/TOC40W

190

R8882 (900M) S22 2PA/TOC80W

325


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GSM Single

Mode

R8860E (900M) S4/TOC 80W 200

R8882 (900MHz) S1 1PA/TOC20W

180

R8882 (900MHz) S3 1PA/TOC60W

195

R8882 (900MHz) S6 1PA/TOC2*60W

300

G/UDual-Mode

R8860E 4G1U/

TOC 4*15W (GSM)+20W(UMTS)

215

R8882 (900M) 4G1U 1PA/

TOC 4*10W (GSM)+20W(UMTS)

200

Environment

Indices

Temperature

BBU: -20°C - +55°C

RRU:R8840/R8860E/R8880A/R8882: -40°C - +55°C

RelativeHumidity

BBU: 5% - 95%

RRU: 5% - 100%

Waterproof

/Dustproof

BBU: IP20

RRU: IP65

Ground ≤5Ω

EMC Indices

National/

International

Standard

YD/T 1595.2-2007

ETSI EN 301 489-01, ETSI EN 301 489-23

ETSI EN 300 386 –V1.3.2

(CISPR22) Class BDirective 1999/5/EC (R&TTE)

Reliability

Indices

MTBF

BBU: ≥233,000 hours

R8840: ≥420,000 hours

R8860E: ≥380,000 hours

R8880A: ≥354,000 hours

R8882: ≥322,000 hours

MTTRBBU: 0.5 hours

RRU: 1 hours

Availability

BBU: ≥99.999785%

R8840: ≥99.999762%

R8860E: ≥99.999868%

R8880A: ≥99.999718%

R8882: ≥99.999689%

DownDuration

BBU: ≤1.128 min/year

R8840: ≤1.251 min/year

R8860E: ≤1.383 min/year

R8880A: ≤1.485 min/year

R8882: ≤1.632 min/year


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5.2 External Interface

ZXSDR BS8700 has abundant external interfaces which are described below.

Table 5-2 Description of BS8700 External Interface

Interface Item IndexInterface

TypeStandard

Abis/Iub

STM-1 2 (optional) SFP (LC)ITU G.957

ITU G.707

E1/T116 (8 pairs ofoptional)

DB44 ITU G.703/G.704

Ethernet

1(10M/100M/1000Melectrical)

Auto-Negotiation Auto-MDI/MDIX

RJ4510/100/1000BASE-TIEEE 802.3 compatible

1 (1000M optical) or

1 (100M optical)SFP (LC)

1000BASE-LX IEEE802.3 compatible

100BASE-FX IEEE802.3 compatible

Clock GPS 1 SMAGPS Antenna Interface

NMEA 0183 V3.0

BasebandMonitor &

Alarm

DryContacts

6 (Input),

2 (Input / Output)DB44 -

RS485 1 DB44 -

RF Monitor& Alarm

DryContacts

4 per RRU DB15 -

RS485 1 per RRU DB15 -


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6 Operation and Maintenance

The operation and management of BS8700 are performed by the ZTE unified network

management system, NetNumen M31, which adopts client/server architecture. The

server runs Solaris OS + Oracle database. The client adopts Windows system, enabling

human-machine management for the network element.

Figure 6-1 NetNumen M31 Elements Management System

The BSS/UTRAN/E-UTRAN provides a transparent channel to implement operation and

maintenance information interaction between NetNumen M31 and the radio network.

Management of the BSC/RNC and the BTS/Node B/eNode B adopts unified client

interface for security management and operation log. NetNumen M31 also supports

CORBA/SNMP Itf-N interface towards third-party NMS.

BS8700 operation and maintenance system support the following functions:

Version Management

With this function, administrator can view versions of the all software and hardware

running at the foreground. The hardware version includes the BOOT version number and

its generation time. The software version includes the software version number,

download time and its current running state.


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The background provides a software downloading system for software

download/upgrade at the foreground. Before download/upgrade, warehousing

processing is required. The warehousing process will copy the version files to the server

and register to the server.

Software versions existing in the base stations can be activated with or without software

tests.

Alarm Management

The alarm management system monitors running states of the base stations, dynamically

displays the rack structure of the foreground module and collects abnormal information of

the boards, links, database and server in real time. These functions make it convenient to

analyze, address the problems, maintain and repair.

Information collected by the alarm management system includes notification, alarm and

alarm recovery.

The alarm management system synchronizes alarms, reports historical alarms and

current alarms, and sets and queries alarm shielding.

Configuration Management

Configuration management implements functions of equipment configuration and radio

configuration.

Log Management

NetNumen M31 system provides the log management function. Any operation performed

by operator will be recorded automatically. Thus, the operation maintenance

administrator can query historical operation records. Log records are saved in the NM

database server.

Security Management

Security management is implemented through user management and user group

management. The user management includes the management for user name, password

and user groups which the user belongs to. The user group management includes themanagement of user group name and authority information (indicating authorities the

user group has).

Performance Management

Performance management is to measure, report and provide performances statistic of

base stations.

Diagnosis and Test


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Diagnosis and test are important components of EMS. The network administrator can

check whether system hardware is working properly by diagnosis and test. They are also

able to trace and fix the faults on time to secure the safe operation of the system.

Base station diagnosis and test cover the following functions:

Information reporting

Board link testing

Receiving field strength testing

Environment information monitoring

Other Supplementary Functions

The operation and maintenance system also provides other supplementary functions to

facilitate base station maintenance, which include but not limited signaling tracing,

channel viewing, abnormal record reporting and viewing.


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7 Configuration Principles

7.1 Baseband Unit Configuration Principles

Different baseband processing boards can be configured in BS8700 baseband unit for

different scenarios. UBPG board supports GSM/GPRS/EDGE/E-EDGE. BPC board

supports UMTS/HSPA/HSPA+. The processing capability of baseband processing

boards is listed as below:

Single UBPG board supports GSM/GPRS/EDGE/E-EDGE 12 TRXs

Single BPC supports 6 CSs, uplink 192 CEs and downlink 192 CEs

In typical configuration, the BS8700 baseband unit provides 4 baseband processing

board slots. 1 more BP board can be available if only one FS board is configured.

7.2 Radio Unit Configuration Principles

On different frequencies and software configurations, BS8700 can be configured as

various GSM/UMTS base stations:

In GSM single mode, R8860E supports 6 TRXs. One R8882 supports totally 2*4

TRXs.

In UMTS single mode, R8840 and R8860E supports 4 carriers, R8880A supports

2*4 carriers, R8882 supports 2*2 carriers.

If GSM/UMTS are in the dual mode, single R8860E can support 1 UMTS Carriers +

4 GSM TRXs or 2 UMTS carriers + 2 GSM TRXs at maximum; single R8882 can

support 2* (4G+1U) or 2* (2G+2U).

7.3 GSM Single Mode Configuration PrinciplesR8860E or R8882 is configured for GSM single mode, which is based on multi-carrier

technology.

7.3.1 R8860E Configuration

Table 7-1 BS8700 Configuration for GSM Single Mode (R8860E, TOC 20W/TRX)

Site Type R8860E Qty B8200 Qty UBPG Qty

S4/4/4 3 1 1


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S6/6/6 3 1 2

S12/12/12 6 1 3

7.3.2 R8882 Configuration

Table 7-2 BS8700 Configuration for GSM Single Mode (R8882, TOC 20W/TRX)

Site Type R8882 Qty B8200 Qty UBPG Qty

S4/4/4 2 1 1

S8/8/8 3 1 2

7.4 UMTS Single Mode Configuration Principles

R8840, R8860E, R8880A, R8882 is configured for UMTS single mode.

7.4.1 R8840/R8880A Configuration

Table 7-3 BS8700 Configuration for UMTS Single Mode (R8840/R8880A)

Site Type R8840/R8880A Qty B8200 QtyBPCQty

S1/1/1 3 1 1

S2/2/

BTS_U_BS8700 Product Description (Distributed)

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