zxsdr bs8906 e product description(configured with b8100) 20100825

Product Type Technical Proposal

ZTE Confidential Proprietary © 2008 ZTE Corporation.All rights reserved. I

ZXSDR BS8906E Product Description


ZTE Confidential Proprietary © 2008 ZTE Corporation.All rights reserved. I


Version Date Author Approved By Remarks

V1.0 2009-11-22 Li Chunying

Li Jian, Chang Zitong,

Xiao Rongjian,

Wang Xiaoming, Xu Falu

Not open to the third party

2009-12-07 Li Chunying Update the content description

2010-02-09 Xu Zihua

Li Chunying

Modify Standards Complied

2010-02-25 Li Chunying Modify the Module Layout, add 1.9 GHz, etc.

2010-07-09 Li Chunying Modify the power consumption, etc.

2010-08-24 Li Chunying Add the indices explanation of Power Consumption

© 2010 ZTE Corporation. All rights reserved.

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

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


ZTE Confidential Proprietary © 2008 ZTE Corporation.All rights reserved. II

TABLE OF CONTENTS

1 Overview ..................................................................................................................... 1 1.1 Background .................................................................................................................. 1 1.2 Product Overview ........................................................................................................ 1 1.3 ZXSDR BS8906E Position in CDMA Network and Interfaces ..................................... 1

2 Product Features ........................................................................................................ 3

3 Functionalities ............................................................................................................ 5

4 ZXSDR BS8906E System Architecture..................................................................... 7 4.1 BBU ............................................................................................................................ 10 4.1.1 CC .............................................................................................................................. 10 4.1.2 CVI ............................................................................................................................. 10 4.1.3 CH (Channel Handling Module) ................................................................................. 11 4.1.4 Power and Site Alarm Module (PSA) ........................................................................ 12 4.1.5 FA .............................................................................................................................. 12 4.2 RSU ........................................................................................................................... 12 4.2.1 DFL ............................................................................................................................ 12 4.2.2 TR .............................................................................................................................. 12 4.2.3 PA .............................................................................................................................. 13 4.2.4 RPDC ......................................................................................................................... 14 4.2.5 PIB ............................................................................................................................. 14 4.3 FCE ............................................................................................................................ 14 4.4 Power Distribution Module ......................................................................................... 14

5 Technical Specifications ......................................................................................... 15 5.1 Physical Indices ......................................................................................................... 15 5.1.1 Outer View ................................................................................................................. 15 5.1.2 Dimentions ................................................................................................................. 17 5.1.3 Gross Weight ............................................................................................................. 17 5.2 Power ......................................................................................................................... 17 5.2.1 Power System Range ................................................................................................ 17 5.2.2 Power Comsumption ................................................................................................. 17 5.3 Temperature and Humidity Requirements ................................................................. 17 5.4 Interface Indices ........................................................................................................ 18 5.5 Capacity Indices ........................................................................................................ 18 5.6 Environmental Classes .............................................................................................. 19 5.6.1 Grade Of Protection ................................................................................................... 19 5.6.2 Grounding Requirements ........................................................................................... 19 5.6.3 Noise Requirments .................................................................................................... 19 5.7 Reliability Indices ....................................................................................................... 19 5.8 RF Indices .................................................................................................................. 19 5.9 BS Clock Indices ........................................................................................................ 23

6 Networking Mode and Application ......................................................................... 25 6.1 Networking Mode ....................................................................................................... 25 6.1.1 Abis Interface Networking Mode ................................................................................ 25 6.1.2 Baseband-RF Networking Mode................................................................................ 26 6.2 Applications................................................................................................................ 26 6.3 Multi-Band Application ............................................................................................... 27


ZTE Confidential Proprietary © 2008 ZTE Corporation.All rights reserved. III

7 Appendix A: Standards Complied .......................................................................... 28

8 Appendix B: Abbreviations ..................................................................................... 30


ZTE Confidential Proprietary © 2008 ZTE Corporation.All rights reserved. IV

FIGURES

Figure 1 ZXSDR BS8906E Position in CDMA Network ............................................................... 2

Figure 2 ZXSDR BS8906E Module Layout .................................................................................. 7

Figure 3 ZXSDR BS8906E Structure ........................................................................................... 8

Figure 4 ZXSDR BS8906E Baseband Cabinet Module Layout ................................................... 9

Figure 5 ZXSDR BS8906E RF Cabinet (RC8906) Module Layout ............................................ 10

Figure 6 ZXSDR BS8906E Outer View ...................................................................................... 15

Figure 7 ZXSDR BS8906E baseband cabinet (BC8906) Outer View ....................................... 16

Figure 8 ZXSDR BS8906E RF cabinet (RC8906) Outer View .................................................. 16

Figure 9 Abis Interface Networking Mode .................................................................................. 25

Figure 10 Baseband-RF Interface Networking ............................................................................. 26

TABLES

Table 1 Primary Functions of ZXSDR BS8906E ........................................................................ 5

Table 2 Normal Power Consumption with -48 V DC Power Supply ......................................... 17

Table 3 Temperature Requirements ......................................................................................... 18

Table 4 Interface Indices ........................................................................................................... 18

Table 5 Transmitter indices (Band Class 0 (800MHz)) ............................................................. 19

Table 6 Transmitter indices (1.9 GHz,2.1GHz)) ....................................................................... 21

Table 7 Receiver indices (Band Class 0 (800MHz)) ................................................................. 22

Table 8 Receiver indices (1.9 GHz,2.1GHz) ............................................................................. 23

Table 9 Abbreviations ............................................................................................................... 30


ZTE Confidential Proprietary © 2008 ZTE Corporation. All rights reserved. 1

1 Overview

1.1 Background

With growing competition in the telecommunication field, besides developing new services and attracting more subscribers, wireless operators also pay more attention on controlling effective Capital Expenditure (CAPEX) and Operation Expenditure (OPEX).

ZTE Software Defined Radio (SDR) uses an architecture of separating the baseband part from the Radio Frequency (RF) part. This architecture features high integration, low consumption, flexible configuration and convenient installation & maintenance. The new generation ZTE CDMA Base Station (BS) products based on the SDR is the first SDR-based CDMA BS in the industry. It is able to help the operators have qualitative leap. The form of this product can be distributed BBU plus RRU. The product form of ZTE SDR can be distributed BBU+RRU, macro BS or micro BS.

1.2 Product Overview

The ZXSDR BS8906E is an outdoor micro BS based on the SDR. It is used to modulate and demodulate baseband, transmit and demodulate RF signal, allocate radio resource, perform call processing, power control and soft handoff.

With All-IP design, the ZXSDR BS8906E is an outdoor micro BS in the distributed architecture. A single BS8906E can support 12 CS CDMA2000 1X + 1xEV-DO service, and support 3 sectors capacity. The ZXSDR BS8906E features small size, light weight, multi-band and convenient capacity expansion. It is suitable for outdoor applications with small capacity and low cost.

1.3 ZXSDR BS8906E Position in CDMA Network and Interfaces

The ZXSDR BS8906E is an outdoor micro BS system using the distributed BS architecture. It connects the Mobile Station (MS) and the Base Station Controller (BSC). The ZXSDR BS8906E provides the following interfaces:

Abis interface

The ZXSDR BS8906E communicates with the BSC via Abis interface. The Abis interface is an internal interface of system and supports two interface modes:

Based on the IP over E1/T1, adopts the recommended-standard protocol stack CUDP\PPPMUX\MP\HDLC.

Based on the IP Over Ethernet

Based on the IP Over SDH\SONET

Um interface



Um interface is the interface between the Access Terminal (AT) and the BS. It conforms to the standards IS-2000 Release A and IS-856-A.

Baseband-RF interface

The ZXSDR BS8906E is connected to the RF System Unit (RSU) or the Remote RF Unit (RRU). It supports cascading and networking functions defined in the CPRI protocol.

ZXSDR

Core

Network

BSC

MS

MS

MS

BSC

M

S

M

S

M

SRRU

RRU

MSC

AGW

/PDSN

BSC

Um

air interface

Baseband-RF

interface

CPRI

Abis interface

(recommended-

standard)

A3/A7

interfaceA interface

（A1/A2/A5)

(A10/A11)

MSCMSC

MGW

PCF

BSC

PCF

A8/A9

interface

BBU

BS8906E

R

S

U

R

S

U

Figure 1 ZXSDR BS8906E Position in CDMA Network



2 Product Features

By taking full consideration of operators’demands, the ZXSDR BS8906E offers the following unparalleled advantages:

A single ZXSDR BS8906E can support CDMA2000 1X and EV-DO services

simultaneously, which is suitable for application scenarios such as suburban and

rural areas, highways and blind zones.

The ZXSDR BS8906E is the most cost-effective multi-carrier outdoor micro base

station, which can help you to reduce the network construction cost.

The ZXSDR BS8906E is the smallest CDMA outdoor micro base station providing

3C4S configuration in the industry. It is easy for transport and installation, ensuring

fast deployment.

The ZXSDR BS8906E can be installed on a roof, wall, tower and pole, facilitating

site acquisition and simplifying site construction.

The ZXSDR BS8906E belongs to a family of green base stations. It can help you

improve the social image of your company while saving the electricity expense.

By using flexible Abis interface, the ZXSDR BS8906E supports transmission

solutions such as TDM, IP or hybrid networking of TDM and IP.

With the best transmission efficiency in the industry, the ZXSDR BS8906E can

significantly reduce the transmission bandwidth and cost per user, improving your

network value in fierce competition.

Front maintenance and bottom leading-out mode. All fans and lightning modules

can be removed on site.

Generic BS platform

The BBU adopts a platform based on the future-proof B3G or 4G design. Therefore, different standard systems can exist in one hardware platform or in one BS. This platform can help operators simplify operation management and combine many BSs that are required to be invested into one multi-mode BS. Besides, the platform helps the operators flexibly select the evolution trend of the future network and allow the terminal users experience network transparency and smooth evolution as well.

The smooth evolution to LTE

To support the smooth evolution to LTE, base-band part support LTE through pluging LTE baseband board.

Adopts the advanced Micro Telecom Computing Architecture (uTCA)



The uTCA adopts the standard template, compact design and block architecture, which makes the operation more effective and of higher performance-price ratio.

The power-on management mode of uTCA is more reliable.

ZTE is the first vendor to develop a BS based on the uTCA architecture and takes the lead of the advanced technology in the telecommunication industry.



3 Functionalities

The primary functions of the ZXSDR BS8906E are listed in the following Table 1.

Table 1 Primary Functions of ZXSDR BS8906E

Function Category Function Description

Basic Baseband Function

Modulation/demodulation

Radio resource management

Call processing

Handoff control

Power control

GPS timing and synchronization

Basic RF Function Band: 800MHz, 1.9 GHz,2.1GHz

RF modulation/demodulation

RF transceiver duplexer

Low noise amplification for received RF signal

Amplification for transmitted RF signal

RF transceiver

Interface The baseband-RF interface supports Common Public Radio Interface (CPRI) protocol.

The Abis interface supports IP Over Ethernet access.

The Abis interface supports IP Over E1/T1 access.

The Abis interface supports IP Over SDH\SONET access.

The air interface supports IS-2000 Release A and IS-856-A standards.

The Antenna Interface Standards Group (AISG) interface supports electrically adjustable antenna standards.

Networking Support for the remote application of RRU; networking modes including star and chain.

Support for the cascading networking mode of RRU, the highest up to 6 levels.

The Abis interface supports cascading of the daisy chains by IP Over E1/T1.

Environment Monitoring

Input power: undervoltage/overvoltage alarm

Output power: undervoltage/overvoltage alarm

Power: overcurrent alarm

Environment temperature alarm

External RS232/RS485 monitoring interfaces

External dry contacts monitoring interfaces

Equipment Support of front-maintenance



Function Category Function Description

Maintenance Remote upgrade of software version for FPGA/BOOT/DSP/CPU

Remote reset and power off of service boards

Electronic label

Power query: baseband power, RF power and antenna output power

Automatic calibration

RSSI query

Reverse spectrum query: querying the reverse received signal spectrum of each carrier

Monitoring alarm for antenna standing wave ratio

Power amplification control and protection: over-power, over-temperature and standing wave alarm

Reliability Reverse voltage protection

Scenario Indoor and outdoor applications, for example, rural areas and towns. It is mainly used for outdoor and indoor applications as well as edge networks.



4 ZXSDR BS8906E System Architecture

Based on the SDR architecture, the ZXSDR BS8906E has powerful competitiveness. Figure 2 shows the ZXSDR BS8906E module layout.

LPU/PDM/FAN

RS

U

RS

U

LP

U\S

DH

\mic

row

ave

IDU

FCE/FAN

DP

M/P

SU

PS

AC

HV

/CH

D

CH

V/C

HD

CC

CV

IFA

AP

M

Figure 2 ZXSDR BS8906E Module Layout

The ZXSDR BS8906E consists of BBU, RSU, FCE, PSU, APM\DPM, LPU\SDH\microwave IDU and so on. The internal communication takes place between BBU, RSU and FCE. The BBU and the RSU are connected to each other through the CPRI interface. The FCE is responsible for driving controlling and monitoring fans, controlling the on-off status of the heaters. Besides, the FCE collects and gives alarms for access control, temperature, flooding and lightning alarms. The FCE is connected to the PSA of the BBU through the RS485 interface to monitor communication inside the baseband, and the FCE is connected to the RSU through the RS485 interface to monitor communication inside the RF.

BBU

The BBU consists of the following modules:

Control and Clock Module (CC)

Channel Processing Voice & RF Interface Module (CVI)

Channel Handling Module (CH)



Power and Site Alarm Module (PSA)

Fan Array Module (FA)

RSU

The RSU consists of the following modules:

Duplex Filter & LNA (DFL)

Transceiver (TR)

Power Amplifier (PA)

Lightning Protection Interface Board (PIB)

RRU DC Power (RPDC)

The ZXSDR BS8906E structure is shown in Figure 3.

CRUCRU

BBU

GPS

Antenna

ECCM

PSA

E1/T1

IP Transfer to BSCIP Cloud

Fiber

Abis FE/GE

Clock

CH

CCGE

SW

CVIIQ

SW

SE

IQ

GE

RSU PA

TR

TX

RX0

DFL

ant1 ant0

RX1

Figure 3 ZXSDR BS8906E Structure

The ZXSDR BS8906E internal signal flow is as follows:

Forward

The data from BSC goes into the BBU through the CC. The CC terminates IP transmission protocol over Abis interface; The CC sends the data to CVI via Gigabit Ethernet (GE). The CVI performs modulation, multiplexing and IQ



switching of the data. After de-multiplexing, frame generation, parallel-to-serial conversion, the data is finally distributed to RSU via CPRI interface.

The TR receives the data after baseband modulation via the CPRI interface, performs up conversion of the data, and then sends the data to the PA. The PA amplifies the power of the input signal from the TR and then sends it to the DFL. The DFL processes the RF signal and then sends it via the antenna.

Reverse

The reverse CDMA signal from the antenna is sent to the TR after through the DFL. Then the CDMA signal is converted to a baseband digital signal by the TR and sent to the baseband via the CPRI interface.

After receiving the baseband signal from the RSU, the IQ SW of the CVI demultiplexes and demodulates the signal to get a service packet. Then the CVI converts the service packet to Ethernet frames and send the frames to the CC via GE. Then the CC processes the transmission protocol of Abis interface over IP and sends it to the BSC through E1/T1 or Ethernet. The BS8906E also supports IP Ethernet access mode.

The BS8906E baseband cabinet (BC8906) can be separately configured as an outdoor BBU. In this case, the RF cabinet and the RSU are not required.

LP

U\S

DH

\mic

row

ave

IDU

FCE/FAN

DP

M/P

SU

PS

AC

HV

/CH

D

CH

V/C

HD

CC

CV

IFA

AP

M

Figure 4 ZXSDR BS8906E Baseband Cabinet Module Layout

The BS8906E RF cabinet (RC8906) can be separately configured. In this case, the Baseband cabinet are not required.



LPU/PDM/FAN

RS

U

RS

U

Figure 5 ZXSDR BS8906E RF Cabinet (RC8906) Module Layout

4.1 BBU

4.1.1 CC

The Control and Clock Module (CC) has the following functions:

GPS timing

Receiving GPS signal and providing system clock and RF reference clock.

Distributing system clock signal.

GE Ethernet switching

Providing switching platform for signaling and media stream respectively.

External interfaces

Abis interface: one Ethernet port (optical or RJ45 port)

One local operation and maintenance port - FE port.

4.1.2 CVI

The Channel Processing Voice & RF Interface Module (CVI) implements the following functions:

Remote baseband-RF CPRI interface

Support four remote baseband-RF CPRI interfaces



Forward: the CVI multiplexes and frames the baseband data and then connects to the RRU through an optical interface.

Reverse: The CVI performs deframing and demultiplexing of the data from the RRU and then sends it to the BBU.

IQ switching

The CVI supports IQ switching with other channel boards in other AMC slots to implement channel sharing.

1X channel processing

Implement a variety of key technologies: diversity, RAKE receiver, softer handoff and power control.

Implement forward modulation and reverse demodulation of baseband signal.

Forward modulation and reverse demodulation support the following physical channels:

Forward: Pilot Channel, Sync Channel, Paging Channel, Quick Paging channel, Dedicated Control Channel, Forward Foundmental Channel, Forward Supplemental Channel and Forward Supplemental Code Channel

Reverse: Reverse Pilot Channel, Access Channel, Reverse Foundmental Channel, Reverse Supplemental Channel and Reverse Dedicated Control Channel.

4.1.3 CH (Channel Handling Module)

The CH mainly implements baseband forward modulation and reverse demodulation, and key technologies of CDMA like diversity technology, RAKE receiver, softer handoff and power control.

The CH includes CHV and CHD. CHV supports CDMA2000 1X and CHD supports 1x EV-DO.

The ZXSDR BS8906 system supports interchangeable installation of CHD and CHV to implement both 1x and EV-DO services.

The CH module performs forward modulation and reverse demodulation of baseband

and supports the following physical channels:

Forward: pilot channel, synchrnization channel, paging channel, quick paging

channel, forward dedicated control channel, forward fundmental channel, forward

supplemental channel and forward supplemental code channel

Reverse: reverse pilot channel, access channel, reverse fundmental channel,

reverse supplemental channel and reverse dedicated control channel



4.1.4 Power and Site Alarm Module (PSA)

Power and Site alarm module (PSA) has the following functions:

Voltage conversion, processing and distribution for the inputted -48V DC power

source

Control and alarm for the fans.

Monitoring interfaces

External RS485/RS232 environment monitoring ports.

Dry contacts: 8 inputs.

Abis interface: up to 8-16 E1s/T1s

4.1.5 FA

The Fan Array Module (FA) provides speed control for the fans and temperature detection for the air inlet.

4.2 RSU

The RSU60 (1T2R) or RSU82 (2T4R) can be used as the RF functional entity.

As the first double-density module in CDMA field, RSU82 can be mounted in such system models as BS8906E, BS8800, and BS8900. It can be applied in double-sector 1T2R, single-sector high carrier, high power and dual band, etc. Its hardware supports LTE, and software upgrade can achieve CDMA/LTE mixed mode.

4.2.1 DFL

The Duplex Filter & LNA (DFL) has the following functions:

Performs filtering and low noise amplification of the reverse CDMA signal from the

antenna.

Filters the forward RF signal to be sent.

Reports LNA alarms to the TR.

In the case of main/diversity combined cabinets, the main receive LNA output end

of the DFL has the power splitter function and reserves an external port (Rx out).

4.2.2 TR

The Transceiver (TR) is the main control module of the RSU. It performs communication, control, and alarm and version management for the RSU.

The TR has the following functions of:

Forward link processing

Conversion from baseband signal to RF signal

Conversion of output IQ data format

Power calibration and detection processing



Peak clipping/digital pre-distortion processing

Digital IF processing

Gain adjustment (calibration)

Reverse link processing

Conversion from RF signal to baseband signal

Digital IF processing

RSSI and RAB report

In-band anti-interference function

Spectrum report

Automatic Gain Control (AGC)

Output IQ data format conversion

Supports switching between different receive channel signals in the case of main/diversity combined cabinets.

Clock processing function

Performs clock recovery for data on the CPRI between the RSU and the BBU generating a reference clock source. Performs phase lock for the reference clock by utilizing a local high-stability clock. The working clocks generated include the master clock, frame- frequency clock, digital processing clock and RF baseband clock.

Monitoring function

PA forward power detection function: when the temperature threshold is exceeded, the TR reports the relevant alarm and controls the PA through the PA output enable/disable signal.

PA reversed power (standing wave ratio) detection function: when the temperature threshold standing of the standing wave ratio is exceeded, the TR reports the relevant alarm and controls the PA through the PA output enable/disable signal.

PA temperature detection function: When the temperature threshold is exceeded, the TR reports the relevant alarm and controls the PA through the PA output enable/disable signal.

PA output enable/disable

TR transmit output power detection

DFL two-channel LNA alarm detection and report

RPDC input undervoltage/overvoltage alarm detection and report

RPDC output undervoltage/overvoltage alarm detection and report

RPDC output overcurrent alarm detection and report

System environment monitoring

CPRI self-test alarm

Key chip self-test alarm

4.2.3 PA

The Power Amplifier (PA) has the following functions:

Amplifies downlink RF signal input via the TR and then sends the signal to the DFL.



Provides digital pre-distortion feedback signals for the TR.

Provides a PA output enable/disable interface.

4.2.4 RPDC

The RRU DC Power Supply (RPDC) converts –48 V DC input power supply to DC power supply required by the PA, TR, or DFL.

4.2.5 PIB

The Lightning Protection Interface Board (PIB) performs the functions of AISG interface, RS485 extension interface, panel transfer of the dry contacts and lightning protection. Besides, the PIB transfers the signal from the debugging FE interface and the indicators and the board reset signal as well on the TR to the front panel.

4.3 FCE

The FCE detects the external and internal environment temperature in real time. It is used to implement power supply allocation, speed adjustment, status monitoring, control on the on-off status of the heaters. Besides, the FCE is responsible for collecting and giving alarms for cabinet access control, PIB status and PSU.

4.4 Power Distribution Module

The DPM or APM & PSU can be configured to support -48 V DC and 110/220 V AC respectively so as to implement lightning protection, filtering, AC-to-DC conversion, allocation and grounding for working power.



5 Technical Specifications

5.1 Physical Indices

5.1.1 Outer View

The ZXSDR BS8906E outer view is shown in Figure 6.

Figure 6 ZXSDR BS8906E Outer View



Figure 7 ZXSDR BS8906E baseband cabinet (BC8906) Outer View

Figure 8 ZXSDR BS8906E RF cabinet (RC8906) Outer View



5.1.2 Dimentions

Dimensions of BS8906E single cabinet (H*W*D): 600 × 420 × 480 (mm)

Dimensions of BS8906E baseband cabinet (H*W*D): 600 × 210 × 480 (mm)

Dimensions of BS8906E RF cabinet (H*W*D): 600 × 210 × 480 (mm)

5.1.3 Gross Weight

The weight of the whole system with full configuration is less than or equal 70 kg.

The weight of RC8906:<=40 kg.

The weight of BC8906:<=30 kg.

5.2 Power

5.2.1 Power System Range

Power supply modes:

DC: -48 V; voltage fluctuation range: -18 V to -62 V

AC: 220 V; voltage fluctuation range: 150-300 V

AC: 110 V; voltage fluctuation range: 85-135 V

5.2.2 Power Comsumption

The normal power consumption with -48 V DC power supply is described in Table 2.

Table 2 Normal Power Consumption with -48 V DC Power Supply

Typical Configuration Power Typical Power Consumption

S111 20W/C/S 390 W

S222 20W/C/S 530 W

S333 20W/C/S 780 W

Notes :

The above power consumption values are under the 800 MHz band; for -48V DC

power input, adopt the power consumption of the latest power amplification module.

For the base stations of different frequency band and different configuration, the

power consumption is diversified.



5.3 Temperature and Humidity Requirements Table 3 Temperature Requirements

Item Requirement

Operating temperature -40C to +55C

Operating humidity 5%RH to 95%RH

5.4 Interface Indices

The interface indices are listed in Table 4.

Table 4 Interface Indices

Item Description Indices

Abis Interface E1/T1 8-16

Number of Ethernet interface

1 port (optical or RJ45 port)

E1/T1 daisy chain levels 4

Baseband-RF interface Interface protocol between BBU and RRU

CPRI

Medium for BBU and RRU interface

Optical port/high-speed cable interface

Number of baseband-RF interfaces supported by the BBU

4 (One interface is connected with the RSU inside the cabinet.)

Cascading levels of RRU supported by one fiber

6

Length of a single link supported by RRU

< 80 km

Environment Monitoring Interface

Dry contact RC8906 supports 4 dry contacts: 4 inputs;

BC8906 supports 8 dry contacts: 8 inputs or 6 inputs & 2 outputs.

Serial port RC8906 supports one RS485.

BC8906 supports one RS232.

5.5 Capacity Indices

A single BS8906E can support 4C3S, 26.38 Erl per sector/carrier



5.6 Environmental Classes

5.6.1 Grade Of Protection

IP55

5.6.2 Grounding Requirements

Joint grounding resistance 1; BTS grounding resistance 5 .

5.6.3 Noise Requirments

BTS working environmental noise: < 65 dBA.

5.7 Reliability Indices

Mean Time Between Failures (MTBF) >100,000 hours

MTTR (Mean Time To Repair) < 0.5 hour

Availability: > 99.999%

5.8 RF Indices

RF indices of the ZXSDR BS8906E comply with 3GPP2 C.S0010-C, Recommended Minimum Performance Standards for cdma2000 Spread Spectrum Base Station and 3GPP2 C.S0032-A, Recommended Minimum Performance Standards for CDMA2000 High Rate Packet Data Access Network.

Transmitter indices (Band Class 0 (800MHz))

Table 5 Transmitter indices (Band Class 0 (800MHz))

Name Index

Operating band 800MHz (Band Class 0)

Transmitter output frequency tolerance

±0.05 ppm

Occupied channel bandwidth

1.23 MHz (Band Class 0)

Output power at the Top of Cabinet (TOC)

60W/80W

Total transmit power The total transmit power is within +2 dB and -4 dB of the manufacturer’s rated power.

Modulation mode Quadrature amplitude modulation



Name Index

Conducted spurious emission and radiated spurious emission suppression

-45 dBc @750 kHz offset Center Freq

(RBW 30 kHz)

-60 dBc @1.98 MHz offset Center Freq (RBW

30 kHz)

> 4 MHz OFFSET:

-36 dBm (RBW 1 kHz) @ 9 kHz < f <150 kHz

< -36 dBm (RBW 10 kHz) @ 150 kHz < f < 30 MHz

<-30 dBm (RBW 1 MHz) @ 1 GHz < f < 12.5 GHz

4-6.4 MHz OFFSET:

< -36 dBm (RBW 1 kHz) @ 30 MHz < f < 1 GHz

6.4M TO 16M OFFSET:

< -36 dBm (RBW 10 kHz) @ 30 MHz < f < 1GHz

> 16 MHz OFFSET:

< -36 dBm (RBW 100 kHz) @ 30 MHz < f < 1 GHz

Transmitter intermodulation performance

If one BTS transmits at the rated power but another BTS’ output power is 30 dB less than the former’s rated power. When the powers of two BTSs are combined on the antenna port, the generated intermodulation spurious emission meets the conducted spurious emission requirement. The IF difference of the transmit signals of two BTSs is 1.25M.

Pilot time tolerance The PN time tolerance falls within 3 us and the inter-carrier tolerance falls within 1 us.

Time Tolerance/phase tolerance of pilot channel to other channels

Time difference: < 50 ns

Phase difference: < 0.05 rad

Waveform quality Rho is greater than 0.970 dBm with configuration of a single pilot.

Pilot code domain power With the standard 9CH configuration, the pilot code domain power is in the range of -7.0±0.5 dB.

Inactive channel code domain power

With the standard 9CH configuration, the inactive channel code domain power is less than -27 dB.

DO MAC inactive channel code domain power

With configuration of 13 FLUSs, the MAC inactive channel code domain power is less than -29.5 dB (type 2).

DO DATA channel code domain power

With configuration of 13 FLUSs at the rate of 614.44 kbs (test 1), the DATA channel code domain power is in the range of -15.5 dB to -14.5 dB.

Wave quality of DO channels

Pilot channel: Rho > 0.97

MAC channel: Rho > 0.912

DATA channel: Rho > 0.97

Standing wave ratio of the RFE

1.50

Transmitter indices (1.9 GHz,2.1GHz)



Table 6 Transmitter indices (1.9 GHz,2.1GHz))

Name Index

Operating band 1.9G (Band Class 1)

2.1G (Band Class 6)

Transmitter output frequency tolerance

±0.05 ppm

Occupied channel bandwidth

1.25 MHz

Output power at the Top of Cabinet (TOC)

60 W

Total transmit power The total transmit power is within +2 dB and -2 dB of the manufacturer’s rated power.

Modulation mode Quadrature amplitude modulation

Conducted spurious emission and radiated spurious emission suppression

-45dBc @885 kHz offset Center Freq (RBW

30kHz)

-55 dBc @1.98 MHz offset Center Freq (RBW

30kHz)

> 4 MHz OFFSET:

-36 dBm (RBW 1kHz) @ 9KHz < f <150 kHz

< -36 dBm (RBW 10kHz) @ 150 kHz < f < 30 MHz

< -36 dBm (RBW 100kHz) @ 30 MHz <f < 1 GHz

4-16 MHz OFFSET:

< -30 dBm (RBW 30kHz) @ 1 GHz < f < 12.5 GHz

16M-19.2M OFFSET:

<-30dBm(RBW 300kHz) @ 1GHz<f< 12.5GHz

>19.2MHz OFFSET:

<-30dBm(RBW 1MHz) @ 1GHz<f< 12.5GHz

Transmitter intermodulation performance

If one BTS transmits at the rated power but another BTS’ output power is 30 dB less than the former’s rated power. When the powers of two BTSs are combined on the antenna port, the generated intermodulation spurious emission meets the conducted spurious emission requirement. The IF difference of the transmit signals of two BTSs is 1.25M.

Pilot time tolerance The PN time tolerance falls within 3 us and the inter-carrier tolerance falls within 1 us.

Time Tolerance/phase tolerance of pilot channel to other channels

Time difference: < 50 ns

Phase difference: < 0.05 rad

Waveform quality Rho is greater than 0.990 dBm with configuration of a single pilot.

Pilot code domain power With the standard 9CH configuration, the pilot code domain power is in the range of -7.0±0.5 dB.

Inactive channel code With the standard 9CH configuration, the inactive



Name Index

domain power channel code domain power is less than -27 dB.

DO MAC inactive channel code domain power

With configuration of 13 FLUSs, the MAC inactive channel code domain power is less than -29.5 dB (type 2).

DO DATA channel code domain power

With configuration of 13 FLUSs at the rate of 614.44 kbs (test 1), the DATA channel code domain power is in the range of -15.5 dB to -14.5 dB.

Wave quality of DO channels

Pilot channel: Rho > 0.97

MAC channel: Rho > 0.912

DATA channel: Rho > 0.97


1.50

Receiver indices (Band Class 0 (800MHz))

Table 7 Receiver indices (Band Class 0 (800MHz))

Name Index

Operating band 800 MHz (Band Class 0)

Receiver sensitivity < -130 dBm

Receiver dynamic range When the lower limit is the receiver sensitivity and the upper limit (noise level) equals -65dBm/1.23MHz (Eb/N0 = 10dB1dB), the Frame Error Rate (FER) is

lower than 1%.

Noise figure < 3

Single tone desensitization In the presence of a single tone that is 50 dB above the CDMA signal level, and is at offset of 750 kHz

from the center frequency, the output power of the MS increases by no more than 3 dB ,and the FER is less than 1.5%.

In the presence of a single tone that is 87 dB above the CDMA signal level, and is at offset of 900 kHz

from the center frequency, the output power of the MS increases by no more than 3 dB, and the FER is less than 1.5%.

Intermodulation spurious response attenuation

BAND 0:

In the presence of two interfering tones that are 72 dB above the CDMA signal level, and are at offsets of +900 kHz and +1.7 MHz, and -900 kHz and -1.7 MHz from the center frequency, the output power of the MS increases by no more than 3 dB, and the FER is less than 1.5%.

Conducted spurious emissions and radiated spurious emissions

< -80 dBm, measured within the BTS receive band

< -60 dBm, measured within the base station transmit band


1.50



Receiver indices (Band Class 1 (1.9MHz))

Table 8 Receiver indices (1.9 GHz,2.1GHz)

Name Index

Operating band 1.9G (Band Class 1)

2.1G (Band Class 6)

Receiver sensitivity < -130 dBm

Receiver dynamic range When the lower limit is the receiver sensitivity and the upper limit (noise level) equals -65dBm/1.23MHz (Eb/N0 = 10dB1dB), the Frame Error Rate (FER) is

lower than 1%.

Noise figure < 3

Adjacent Channel Selectivity

Band Class 6:>-53dBm(±2.5M)

Single tone desensitization In the presence of a single tone that is 50 dB above the CDMA signal level, and is at offset of 750 kHz

from the center frequency, the output power of the MS increases by no more than 3 dB ,and the FER is less than 1.5%.

In the presence of a single tone that is 87 dB above the CDMA signal level, and is at offset of 900 kHz

from the center frequency, the output power of the MS increases by no more than 3 dB, and the FER is less than 1.5%.

Intermodulation spurious response attenuation

In the presence of two interfering tones that are 70dB above the CDMA signal level, and are at offsets of

+1.25M Hz and +2.05M Hz, and -1.25 MHz and -2.05 MHz from the center frequency of the edge carrier, the

output power of the mobile station shall increase by no

more than 3 dB, and the FER shall be less than 1.5%.

Conducted spurious emissions and radiated spurious emissions

< -80 dBm, measured within the BTS receive band

< -60 dBm, measured within the base station transmit band


1.50

5.9 BS Clock Indices BS Clock Indices:

Frequency reference: 10 MHz. Its accuracy should be smaller than 10-10

in the locked GPS status or the hold status.

Temperature: < ±0.5*10-9

Clock synchronous source

Once the synchronous source is lost for a while or the BS clock is lost in synchronization, dual-ovenized crystal is adopted to ensure the stability of clock for



a short period, and it guarantees that phase wander is less than 10µs within 24 hours through the HOLDOVER algorithm. Therefore the BS can run normally.

Clock System Performance

Frequency tolerance < 0.05 ppm

Phase tolerance < 10 us



6 Networking Mode and Application

6.1 Networking Mode

6.1.1 Abis Interface Networking Mode

The ZXSDR BS8906E is connected to the ZXC10 BSC via the Abis interface or connected to the macro BS in the daisy chain. Physically, these interfaces can be E1/T1 or Ethernet interfaces. Figure 5 shows Abis interface networking mode.

IP

BSCBSC

BS8906E

....

BS8906E BS8906E

BS8906E

Abis

E1/T1

Abis Star

Abis Chain

BS8906E....

IP

BS8906E

Ethernet based Abis

BS8900/

BS8800

Figure 9 Abis Interface Networking Mode

The BSC is connected with ZXSDR BS8906E by E1/T1, and the networking mode

can be star or chain.

Star networking mode: Each BS8906E is connected to BSC point to point, that is, directly (by E1/T1) or indirectly (by external transmission equipment). This mode is simple and reliable.

Chain networking mode: Several BSs are connected in one chain and the last BS8906E is connected to BSC. It is suitable for zonary areas.

The combination of star and chain modes can be adopted.

The BS8906E supports SDH and SONET transmission modes with the built-in transmission sub-rack.

The BSC is connected with the ZXSDR BS8906E through GE port, which provides

many flexible networking modes for customers:

The BSC is connected with the ZXSDR BS8906E through Ethernet cable.



The BSC is connected with the ZXSDR BS8906E through Hub or Switch.

The BSC is connected with several ZXSDR BS8906Es through router.

The BS8906E supports SDH and SONET transmission modes with the built-in NIS

or transmission sub-rack.

6.1.2 Baseband-RF Networking Mode

The baseband-RF interface of the ZXSDR BS906 supports CPRI protocol. The BBU can be connected with the RSU inside the cabinet or the RRUs through fibers. In this case, star networks and chain networks are supported.

Star networking mode: The fiber number from the BBU equals to the total number of

RF stations. The number of fiber is high, but the reliability of this mode also is high.

Chain networking mode: The number of fibers is low, but the reliability of this mode

also is low.

PSACC

CHV/CHDCVI

RSURRU RRU

ZXSDR BS8906E

BBU

FA

Figure 10 Baseband-RF Interface Networking

6.2 Applications

The ZXSDR BS8906E features flexible installation and wide applications due to large capacity and small size. It is suitable for outdoor and indoor applications as well as edge networks.



6.3 Multi-Band Application

The ZXSDR BS8906E can support multiple bands by connecting external RRUs or by cascading RRUs.



7 Appendix A: Standards Complied ANSI J-STD-008, Personal Station-Base Station Compatibility Requirement for 1.8

to 2.0 GHz Code Division Multiple Access (CDMA) Personal Communications

System, 1996.

3GPP2 C.S0001-A version 5.0: Introduction to CDMA2000 Standards for Spread

Spectrum Systems - Release A.

3GPP2 C.S0002-A version 6.0 (TIA/EIA IS-2000.2-A-2): Physical Layer Standard

for CDMA2000 Spread Spectrum Systems - Release A.

3GPP2 C.S0003-A version 6.0 (TIA/EIA IS-2000.3-A-2): Medium Access Control

(MAC) Standard for CDMA2000 Spread Spectrum Systems - Release A, Addendum

2.

3GPP2 C.S0004-A version 6.0 (TIA/EIA IS-2000.4-A-2): Signaling Link Access

Control (LAC) Specification for CDMA2000 Spread Spectrum Systems - Release A.

3GPP2 C.S0005-A version 6.0 (TIA/EIA IS-2000.5-A-2): Upper Layer (Layer 3)

Signaling Standard for CDMA2000 Spread Spectrum Systems - Release A,

Addendum 2.

TIA/EIA/TSB-58, Administration Parameter Value Assignments for TIA/EIA

Wideband Spread Spectrum Standards, 1995.

TIA/EIA/TSB-74, Support for 14.4 Kbps Data Rate and PCS Interaction for

Wideband Spread Spectrum Cellular System, 1995.

TIA/EIA/IS-95-A, Mobile Station-Base Station Compatibility Standard for Dual-Mode

Wideband Spread Spectrum Cellular Systems.

TIA/EIA/IS-95, Mobile Station-Base Station Compatibility Standard for Dual-Mode

Wideband Spread Spectrum Cellular Systems.

TIA/EIA/IS-637, Short Message Services for Wideband Spread Spectrum Cellular

Systems, 1997.

TIA/EIA/IS-127, Enhanced Variable Rate Codec Speech Service Option 3 for

Wideband Spread Spectrum Digital Systems, 1996.

TIA/EIA/IS-658, Data Service Interworking Function Interface for Wideband Spread

Spectrum Systems.

CDG RF36, Markov Service Option for Wideband Spread Spectrum

Communications Systems.

TIA/EIA/IS-725, Over-the-Air Service Provisioning of Mobile Stations in Wideband

Spread Spectrum Systems, 1997.

TIA/EIA/IS-728, Inter-System Link Protocol.

TIA/EIA/IS-733, High Rate Speech Service Option 17 for Wideband Spread

Spectrum Communication Systems.

TIA/EIA/IS-707, Data Service Options for Wideband Spread Spectrum Systems,

1998.



TIA/EIA/IS-707-A-2 Data Service Options for Spread Spectrum Systems Addendum

2, 2000.

3GPP2 C.S0024-A (TIA/EIA IS-856-A): CDMA2000 High Rate Packet Data Air

Interface Specification, August 2005.

3GPP2 C.S0024 (TIA/EIA IS-856): CDMA2000 High Rate Packet Data Air Interface

Specification, October 2002.

3GPP2 C.S0024-B (TIA/EIA IS-856-B): cdma2000 High Rate Packet Data Air

Interface Specification

3GPP2 A.S0008 (TIA/EIA IS-878), IOS Specification for High Rate Packet Data

(HRPD) Radio Access Network Interfaces.

3GPP2 A.S0008-A. Interoperability Specification (IOS) for High Rate Packet Data

(HRPD) Radio Access Network Interfaces With Session Control in the Access

Network

3GPP2 C.S0063-0, cdma2000 High Rate Packet Data Supplemental Services.

3GPP2 C.S0063-A, cdma2000 High Rate Packet Data Supplemental Services.



8 Appendix B: Abbreviations

Table 9 Abbreviations

Abbreviations Full Name

APM AC Protection Module

BBU Base Band Unit

BSC Base Station Controller

CAPEX Capital Expenditure

CC Control and Clock Module

CDMA Code Division Multiple Access

CHD DO Channel Handling Module

CVI Channel Processing Voice Interface Module

CPRI Common Public Radio Interface

DFL Duplex Filter & LNA

DPM DC Protection Module

FA Fan Array Module

FCE Fan Control Element

GE Gigabit Ethernet

GPS Global Position System

LPU Line Lighting Protection Unit

MS/AT Mobile Station/Access Terminal

MTBF Mean Time Between Failures

OPEX Operation Expenditure

PA Power Amplifier

PIB Lightning Protection Interface Board

PSA Power and Site Alarm Module

PDM Power Distribution Module

PSU Power System Unit

RPDC RRU DC Power

RRU Remote RF Unit

RSU RF System Unit

TR RRU Transiver and Receicer

SDR Software Defined Radio

uTCA micro-Telecom Computing Architecture

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