ZXSDR BS8800 Technical Specifications

Product Type Technical Proposal
ZTE Confidential Proprietary © 2008 ZTE Corporation. All rights reserved. I
ZXSDR BS8800 Product
Description

ZXSDR BS8800 Product Description
ZTE Confidential Proprietary © 2008 ZTE Corporation. All rights reserved. I
Version Date Author Approved By Remarks
V1.00 2009-06-12 Not open to the Third Party
2009-07-03 Li Chunying Modify the TOC indice
2010-01-18 Li Chunying Modify Outer view
2010-02-09
Xu Zihua
Li Chunying
Modify Standards Complied
2010-07-09 Li Chunying
Modify power consumption and
band.etc.
2010-08-17 Li Chunying Modify the chapter 6.6.1
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 ..................................................................................................................... 5
2 Highlight Features...................................................................................................... 6
3 Functionalities ............................................................................................................ 8
4 System Architecture ................................................................................................10
4.1 System Architecture...................................................................................................10
4.2 ZXSDR BS8800 Position in CDMA Network .............................................................12
4.3 Modules of BBU.........................................................................................................13
4.3.1 Control and Clock Module (CC).................................................................................13
4.3.2 Channel Handling Module (CH).................................................................................13
4.3.3 Channel Processing Voice & RF Interface Module (CVI)..........................................14
4.3.4 Site Alarm Module (SA) .............................................................................................14
4.3.5 Site Alarm Extender (SE)...........................................................................................15
4.3.6 Fan Array Module (FA) ..............................................................................................15
4.3.7 Power Module (PM) ...................................................................................................15
4.4 RSU Module...............................................................................................................15
4.4.1 Duplex Filter & LNA (DFL).........................................................................................15
4.4.2 Transceiver and Receiver (RTR)...............................................................................16
4.4.3 Power Amplifier (PA) .................................................................................................17
4.4.4 RRU DC Power Supply (RPDC)................................................................................17
4.5 Power Distribute Module (PDM) ................................................................................17
4.6 Software System........................................................................................................17
5 Technical Specifications .........................................................................................19
5.1 Physical Indices .........................................................................................................19
5.1.1 Outer View .................................................................................................................19
5.1.2 Dimentions.................................................................................................................19
5.1.3 Gross Weight .............................................................................................................19
5.2 Power.........................................................................................................................19
5.2.1 Power System Range................................................................................................19
5.2.2 Power Comsumption .................................................................................................19
5.3 Temperature and Humidity Requirement ..................................................................20
5.4 Interface Indices ........................................................................................................20
5.5 Capacity Indices ........................................................................................................21
5.6 Environmental Classes..............................................................................................21
5.6.1 Grade Of Protection...................................................................................................21
5.6.2 Grounding Requirements...........................................................................................21
5.6.3 Noise Requirments ....................................................................................................21
5.7 Reliability Indices .......................................................................................................22
5.8 RF Indices..................................................................................................................22
5.9 BTS Clock Indices .....................................................................................................26
6 Networking Mode and Application .........................................................................27
6.1 Networking Mode.......................................................................................................27
6.1.1 Abis Interface Networking Mode................................................................................27
6.1.2 Baseband-RF Networking Mode................................................................................28
6.2 Applications................................................................................................................28
6.3 Multi-Band Application ...............................................................................................29

ZTE Confidential Proprietary © 2008 ZTE Corporation. All rights reserved. III
7 Appendix A: Standards Complied ..........................................................................30
8 Appendix B: Abbreviations .....................................................................................32

ZTE Confidential Proprietary © 2008 ZTE Corporation. All rights reserved. IV
FIGURES
Figure 1 ZXSDR BS8800 Module Layout ..................................................................................10
Figure 2 ZXSDR BS8800 Structure ...........................................................................................11
Figure 3 ZXSDR BS8800 Position in CDMA Network ...............................................................12
Figure 4 ZXSDR BS8800 Outer View ........................................................................................19
Figure 5 Abis Interface Networking Mode..................................................................................27
Figure 6 Baseband-Fiber Remote Interface Networking ...........................................................28
Figure 7 Dual-band BS8800.......................................................................................................29
Figure 8 Multi-band BS8800 ......................................................................................................29
TABLES
Table 1 Primary Functions of ZXSDR BS8800........................................................................... 8
Table 2 Normal Power Consumption with -48 V DC Power Supply .........................................20
Table 3 Normal Power Consumption with -48 V DC Power Supply (RSU:105W)....................20
Table 4 Temperature Requirement...........................................................................................20
Table 5 Interface Indices...........................................................................................................20
Table 6 Transmitter indices (Band Class 0 (800MHz), Band Class 5 (450MHz)) ....................22
Table 7 Transmitter indices (1.9GHz,2.1GHz and AWS) .........................................................23
Table 8 Receiver indices (Band Class 0 (800MHz), Band Class 5 (450MHz)) ........................25
Table 9 Receiver indices (1.9GHz,2.1GHz and AWS) .............................................................25
Table 10 Abbreviations ...............................................................................................................32

ZTE Confidential Proprietary © 2008 ZTE Corporation. All rights reserved. 5
1 Overview
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 provides more competitive telecommunication equipment and solution for clients
and puts forward ZXSDR BS8800, which is the integrated BTS solution of CDMA2000.
ZXSDR BS8800 is based on the common BTS platform that is focused on supporting
future B3G and 4G technologies. The same hardware platform will support different
technologies. The operators can have smooth and flexible innovation to the future
technology and in turn protect the current network investment.

2 Highlight Features
By using an All-IP structure, ZTE’s new-generation ZXSDR BS8800 can fully satisfy user
demands for multiple services. It features small size, large capacity, small weight, high
power, multiple services and various ways of transmission. Moreover, it can be installed
against the wall. The industry-leading ZXSDR BS8800 has the following advantages.
 Larger capacity to minimize CAPEX
 A single 19-inch cabinet can supply up to 48 carrier-sectors for 1X or DO
service.
 With a large capacity, the ZXSDR BS8800 not only reduces the number of
BTSs used in areas with heavy traffic, but also saves the construction cost in
auxiliary facilities such as transmission, equipment room and tower, thus
minimizing the CAPEX of network deployment and future capacity expansion.
 Installation against the Wall
The ZXSDR BS8800 can be installed against the wall, and all operations and
maintenance activities for it can be conducted at the front door, helping installation
and maintenance and saving the equipment room space.
 Broadband RF
 The modules of RF System Unit (RSU) support a broad frequency band. Six
carriers within 20MHz bandwidth can be flexibly configured.
 Base Band Unit (BBU) is based on advanced micro-Telecom Computing
Architecture (uTCA), which will lead to smooth evolution in future.
 ZTE is the first vendor to develop a BBU based on the uTCA architecture and
takes the lead of the advanced technology in the telecommunication industry.
The uTCA adopts the standard template, compact design and block
architecture, which makes the operation more effective and of higher
performance-price ratio. Moreover, the power-on management mode of uTCA
is more reliable.
 The same common BBU platform will support GSM/CDMA/WCDMA/TD-
SCDMA technologies by replacing the channel boards. The same platform can
be upgraded smoothly to the future 4G technologies, such as LTE, and WiMAX
16m.
 It also supports multi-mode BTS types. The same BBU can support
1X+DO+LTE simultaneously.
 Abis interface over the Ethernet access solution will help to deploy the network
quickly and reduce the deployment cost.
 The expense of building and renting IP network is comparatively cheaper than
E1/T1, which means lower CAPEX and OPEX in transmission for the operator.
 Ethernet access can supply a larger bandwidth to meet media services’ (data
and video) requirements with fast development.
 Compared to E1/T1, IP networking modes are flexible and expandable. It is
easy to fulfill cross-area networking and capacity expansion.
 Advanced ARIR Function

 It supports the advanced Adaptive Reverse Interference Resistance (ARIR)
function against reverse narrowband interference and adapts to complicated
wireless environments.
 ZTE’s ARIR function supports multi-carrier reverse interference resistance.
 ZTE’s ARIR function is suitable for the total interference with the bandwidth of
less than 300 kHz, and is most suitable for the interference with the bandwidth
of less than 50 kHz.

3 Functionalities
The primary functions of ZXSDR BS8800 are listed in the following Table 1.
Table 1 Primary Functions of ZXSDR BS8800
Function Category Function Description
Basic Baseband
Function
Modulation/Demodulation (one cabinet can provide maximum
48 1X or DO carrier-sectors)
Wireless resource management
Call processing
Handoff control
Power control
GPS timing and synchronization
Basic RF Functions Band: 450MHz/800MHz/1.9G/2.1GHz/AWS
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 supports IP Over E1/T1 access.
Air interface: compliant with IS-2000 Release A and IS-856-A
Local debugging and maintenance interface: Ethernet
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.
Support for cascade of BBUs
The Abis interface supports the daisy chain access by IP
Over E1/T1.
Environment
Monitoring
External RS232/RS485 monitoring interfaces
Dry contacts: 8 inputs; or 6 inputs and 2 outputs
Input power: undervoltage/overvoltage alarm
Output power: undervoltage/overvoltage alarm
Power: overcurrent alarm
Environment temperature alarm
Equipment
Maintenance
Support of front-maintenance
Remote upgrade of software version for
FPGA/BOOT/DSP/CPU

Function Category Function Description
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
Key boards support the active/standby or load-sharing mode.

4 System Architecture
A single ZXSDR BS8800 cabinet supports 48 carrier-sectors for CDMA2000 1X or
1xEV-DO service.
4.1 System Architecture
The ZXSDR BS8800 module layout is shown as below.
PM
PM
SA SE/CHCC
CC CH
CH
CHCVI
CVI/CH
F
A
N
R
S
U
R
S
U
R
S
U
R
S
U
R
S
U
R
S
U
FAN
PDM
PM
PM
SA SE/CHCC
CC CH
CH
CH F
A
N
CVI
CVI/CH
Figure 1 ZXSDR BS8800 Module Layout
The ZXSDR BS8800 consists of BBU and RSU. The BBU is connected to RSU via fiber.
The typical configuration of the BS8800 is one BBU and three or six RSUs.
With the maximum configuration, a single cabinet supports two BBUs and six RSUs.
The BS8800 can be configured with an RF cabinet on its top to support 12 RSUs or nine
RSUs and three combiners.
To support combind cabinets, two ports (one Rx out and one Rx in) are reserved for the
RSU.
The BBU is composed of the following modules:
 Control and Clock Module (CC)
BBU
BBU

 Channel Handling Module (CH)
 Channel Processing Voice & RF Interface Module (CVI)
 Site Alarm Module (SA)
 Site Alarm Extender (SE)
 Fan Array Module (FA)
 Power Module (PM)
The RSU module consists of four parts:
 Duplex Filter & LNA (DFL)
 Transceiver and Receiver (RTR)
 Power Amplifier (PA)
 RRU DC Power (RPDC)
The ZXSDR BS8800 structure is shown in Figure 2.
CRU
CRU
BBU
GPS
Antenna
ECCM
SA
E1/T1
IP Transfer to BSC
IP Cloud
Fiber
Abis FE/GE
Clock
CH
CC
GE
SW
CVI
IQ
SW
SE
IQ
GE
RSU PA
RTR
TX
RX0
DFL
ant1 ant0
RX1
Figure 2 ZXSDR BS8800 Structure
ZXSDR BS8800 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. T
4.2 ZXSDR BS8800 Position in CDMA Network
The position of ZXSDR BS8800 in CDMA mobile communication network is shown in
Figure 3.
BS8800
BSC
BSC
RSU BBU
RRU
MSC
AGW
/PDSN
BSC
MSC
MSC
MGW
PCF
BSC
PCF
MS
MS
MS
MS
MS
MS
BS8800
RSU
......
BBU
Um
Air
Interface
Baseband-RF
interface
CPRI
ABIS
interface A3/A7
interface
A InterfaceA8/A9
interface
Figure 3 ZXSDR BS8800 Position in CDMA Network
The ZXSDR BS8800 consists of Baseband Unit (BBU) and RF System Unit (RSU). As a
Base Transceiver Station (BTS), The ZXSDR BS8800 is located between the BSC and
the MS in the CDMA2000 network.

Connecting with the BSC through the Abis interface, the BTS helps the Base Station
Controller (BSC) manage radio resources, radio parameters and interfaces. Over the
Um interface, it also transmits and receives radio signals to enable the communication
between the radio network system and the Mobile Station/Access Terminal (MS/AT), as
well as implements related control functions.
ZXSDR BS8800 provides the following interfaces:
 Abis interface
The ZXSDR BS8800 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
CUDPPPPMUXMPHDLC.
 Based on the IP Over Ethernet.
 Um interface
Um interface is the interface between the Mobile Station (MS) and the BTS. It
conforms to the standards IS-2000 Release A and IS-856-A standards.
4.3 Modules of BBU
4.3.1 Control and Clock Module (CC)
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: 1 Ethernet port (optic or RJ45 port)
 One local operation and maintenance port - FE port.
 Supporting active/standby working mode
4.3.2 Channel Handling Module (CH)
Channel processing module (CH) mainly completes baseband forward modulation and
reverse demodulation, and implements CDMA key technologies like diversity technology,
RAKE receiver, softer handoff, and power control.
CH includes CHV (based on CSM6700 chip) and CHD (based on CSM6800 chip). CHV
supports CDMA2000 1x and CHD supports 1x EV-DO.
The ZXSDR BS8800 system supports mixed configuration of CHD and CHV for both 1x
and EV-DO services.
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.
Note: It is necessary to configure CHs only when the system's 1X voice capacity
exceeds 2C3S or the system provides EV-DO services.
4.3.3 Channel Processing Voice & RF Interface Module (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.
4.3.4 Site Alarm Module (SA)
Site alarm module (SA) has the following functions of:

 Control and alarm for the fans
 Monitoring interfaces
 External RS485/RS232 environment monitoring ports
 Dry contacts: 8 inputs; or 6 inputs and 2 outputs
 Abis interface: 8 E1/T1 interface
4.3.5 Site Alarm Extender (SE)
Site alarm extender (SE) has the following functions:
 Monitoring interfaces
 External RS485/RS232 environment monitoring ports.
 Dry contacts: 8 inputs; or 6 inputs and 2 outputs.
 Abis interface: up to 8 E1s/T1s
4.3.6 Fan Array Module (FA)
The Fan Array Module (FA) provides speed control for the fans and temperature
detection for the air inlet.
4.3.7 Power Module (PM)
The Power Module (PM) is the power module in ZXSDR BS8800, which performs
processing and distribution for the -48 V DC power source input.
4.4 RSU Module
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.
4.4.1 Duplex Filter & LNA (DFL)
The 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 RTR.
 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).

4.4.2 Transceiver and Receiver (RTR)
The RTR is the main control module of the RSU. It performs communication, control,
and alarm and version management for the RSU.
The RTR 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 RTR 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
RTR 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 RTR reports the relevant alarm and controls the PA through the
PA output enable/disable signal.
 PA output enable/disable
 RTR 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
4.4.3 Power Amplifier (PA)
The PA has the following functions:
 Amplifies downlink RF signal input via the RTR and then sends the signal to the
DFL.
 Provides digital pre-distortion feedback signals for the RTR.
 Provides a PA output enable/disable interface.
4.4.4 RRU DC Power Supply (RPDC)
The RPDC converts –48 V DC input power supply to DC power supply required by the
PA, RTR, or DFL.
4.5 Power Distribute Module (PDM)
The PDM Module provides independent power switch for every RSU.
4.6 Software System
The software system of ZXSDR BS8800 consists of five parts:
 Operating System Subsystem (OSS)
 Service Processing Subsystem (SPS)
 Operation and Maintenance Center (OMC)
 Database Subsystem (DBS)
 Channel Element Subsystem (CES)
The functions of each software module are shown as below:
 OSS
 Provides the dispatching and management of the processes and the external
interfaces which comply with the SDL standards
 Provides communication between the processes located in different positions.
 Implements the control for running status and running order of each hardware
subsystem.
 Provides drivers for lower layer’s hardware and communication ports.
 Provides the management for the foreground file system.

 SPS
 Call processing
 Mobility management
 Radio resource management
 PCF function
 DBS
 Maintenance functions for data table, queue and index.
 Provides different data view for application layer and various dispatching
interfaces for data query.
 Consistency verification and validation for data.
 Data configuration management.
 Synchronization functions for background and foreground data.
 Resources assignment and release functions.
 SCH channel dispatching, fast resource assignment and release.
 CES subsystem
 CSM chipset driver, implements IS-2000 physical layer
modulation/demodulation, coding/decoding functions.
 Functions of IS-2000 MAC layer and partial functions of SAR sub-layer in LAC
layer for Control Channel.
 OMC subsystem
 Provides the statistics for the performance index of the software and hardware
subsystems.
 Diagnosis and testing
 Alarm collection and management
 Software downloading function
 Signaling tracing for SPS subsystem
 Service observation for SPS subsystem
 Local maintenance

5 Technical Specifications
5.1 Physical Indices
5.1.1 Outer View
The ZXSDR BS8800 outer view is shown in Figure 4.
Figure 4 ZXSDR BS8800 Outer View
5.1.2 Dimentions
Dimensions of single cabinet (H*W*D): 950mm*600mm*450mm
5.1.3 Gross Weight
Weight: < =144 kg (for six sectors)
5.2 Power
5.2.1 Power System Range
Power supply: -48 V DC
Voltage range: -18 V to -62 V
5.2.2 Power Comsumption
The normal power consumption with -48 V DC power supply is shown in Table 2 and
Table 3.

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 560 W
S333 20W/C/S 740 W
S444 20W/C/S 920 W
S555 20W/C/S 1190 W
S666 20W/C/S 1370 W
S777 20W/C/S 1540 W
S888 20W/C/S 1720 W
Table 3 Normal Power Consumption with -48 V DC Power Supply (RSU:105W)
Typical Configuration Power
Typical Power
Consumption
S111 20W/C/S 390 W
S222 20W/C/S 560 W
S333 20W/C/S 740 W
S444 20W/C/S 920 W
S555 15W/C/S 850 W
S666 15W/C/S 950 W
S777 15W/C/S 1050 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 Requirement
Table 4 Temperature Requirement
Items Requirement
Operating Temperature -5C to +55C
Operating Humidity 5%RH to 95%RH
5.4 Interface Indices
The interface indices are listed in Table 4.
Table 5 Interface Indices

Items Description Indices
Abis Interface E1/T1 8
Number of Ethernet
interface
1 (optic or RJ45 port)
E1/T1 daisy chain levels 8
Baseband-radio Interface CVI number supported by
single baseband
2
Number of optic port
supported by single CVI
4
Interface protocol between
BBU and RRU
CPRI
Medium for BBU and RRU
interface
Optical port/high-speed
cable interface
Maximum RSUs/RRUs
supported by a single BBU
32
Length of single fabric link
supported by RRU
< 80 km
Environment Monitoring
Interface
Dry contact BBU supports 8 dry
contacts: 8 inputs; or 6
inputs and 2 outputs;
RSU supports 4 dry
contacts: 4 inputs.
Serial port 1 RS485/RS232
5.5 Capacity Indices
Maximum baseband capacity: 48 carrier-sectors，26.38 Erl per sector/carrier.
5.6 Environmental Classes
5.6.1 Grade Of Protection
IP20
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
Availability: > 99.999%
5.8 RF Indices
RF indices of ZXSDR BS8800 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), Band Class 5 (450MHz))
Table 6 Transmitter indices (Band Class 0 (800MHz), Band Class 5 (450MHz))
Name Index
Operating band 800MHz (Band Class 0)
450MHz (Band Class 5)
TransMHzitter output
frequency tolerance
±0.05 ppm
Occupied channel
bandwidth
1.23 MHz (Band Class 0)
1.25 MHz (Band Class 5)
Output power at the Top of
Cabinet (TOC)
40W/60W/80W/105W (800MHz)
60W (450MHz)
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
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

Name Index
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 (1.9GHz,2.1GHz and AWS)
Table 7 Transmitter indices (1.9GHz,2.1GHz and AWS)
Name Index
Operating band 1.9GHz (Band Class 1)
2.1GHz (Band Class 6)
AWS (Band Class 15)
Transmitter output
frequency tolerance
±0.05 ppm
Occupied channel
bandwidth
1.25 MHz
Output power at the Top of
Cabinet (TOC)
60W
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

Name Index
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
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
RFE
 1.50

 Receiver indices (Band Class 0 (800MHz), Band Class 5 (450MHz))
Table 8 Receiver indices (Band Class 0 (800MHz), Band Class 5 (450MHz))
Name Index
Operating band 800MHz (Band Class 0)
450MHz (Band Class 5)
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 = 10dB1dB), 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
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
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
RFE
 1.50
 Receiver indices (1.9GHz,2.1GHz and AWS)
Table 9 Receiver indices (1.9GHz,2.1GHz and AWS)
Name Index
Operating band 1.9GHz (Band Class 1)
2.1GHz (Band Class 6)
AWS (Band Class 15)
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 = 10dB1dB), the Frame Error Rate (FER) is
lower than 1%.
Noise figure < 3
Adjacent Channel Band Class 6:>-53dBm(±2.5M)

Name Index
Selectivity
Single tone desensitization In the presence of a single tone that is 50 dB above
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
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
RFE
 1.50
5.9 BTS Clock Indices
 BTS 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 BTS 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 BTS 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
ZTE’s BSC and ZXSDR BS8800 are connected through Abis interface, physically which
can be E1/T1 or Ethernet. Abis interface networking mode is shown in Figure 5.
IP
BSCBSC
BS880
0
....
BS880
0
BS880
0
BS880
0
BS880
0....
Abis
E1/T1
Abis Star
Abis Chain
BS880
0
....
IP
BS880
0
Ethernet based
Abis
Figure 5 Abis Interface Networking Mode
 BSC is connected with ZXSDR BS8800 by E1/T1, and the networking mode can be
star or chain.
 Star networking mode: each BTS is connected to BSC point to point, that is,
directly (by E1/T1) or indirectly (by external transmission equipment). It is
simple and reliable.
 Chain networking mode: several BTSs are connected in one chain and the last
BTS is connected to BSC. It is suitable for zonary area.
 The combination of star and chain modes can be adopted.
 BSC is connected with ZXSDR BS8800 through GE port, which provides many
flexible networking modes for customers:
 BSC is connected with BTS through Ethernet cable.
 BSC is connected with BTS through Hub or Switch.
 BSC is connected with several BTSs through router.
 BSC is connected with one BTS through router.

6.1.2 Baseband-RF Networking Mode
BBU and RSU/RRU adopt optic interface and support CPRI protocol.
BBU
……
……
……
……
……
……
chain
star
Figure 6 Baseband-Fiber Remote Interface Networking
As shown in the Figure 6, BBU and RRU support star and chain networking mode, or
combination of the above two modes.
 Star networking mode: the fiber number from baseband equals to the total number
of radio stations. The number of fiber is high, but the reliability of this mode also is
high.
 Chain networking mode: the number of fiber is low, but the reliability of this mode
also is low.
6.2 Applications
The ZXSDR BS8800 features flexible installation and wide applications due to large
capacity and small size.
 Suitable for indoor mid and high capacity, wide coverage and multi-band
applications
 It is the smallest outdoor 48CS BTS in the industry with the footprint of 0.27 m
2
.
 The RSU supports a larger number of carriers and has a higher expansion
capability. It supports at most eight carriers, which is the largest number in the
industry.
 The BS8800 supports multi-band.
 Installation against the Wall

6.3 Multi-Band Application
All BS8800 RF links are independent from each other. Each RSU can operate in a
different band to share the baseband resource. The BS8800 supports sharing of up to
S888 + S888 baseband resources.
Sharing of antenna feeder
BBU
R
S
U
R
S
U
R
S
U
R
S
U
R
S
U
R
S
U
For Band B
For Band A
For Common
Figure 7 Dual-band BS8800
The BS8800 supports at most six bands, as shown in Figure 8.
BBU
R
S
U
R
S
U
R
S
U
R
S
U
R
S
U
R
S
U
For Band F
For Band E
For Common
For Band D
For Band C
For Band B
For Band A
Sec 1 Sec 2 Sec 5Sec 3 Sec 6Sec 4
Figure 8 Multi-band BS8800
Through external RRUs and cascading of RRUs, the BS8800 can support more bands.
The number of bands supported by the system is only limited by the baseband resource.

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 10 Abbreviations
ARIR Adaptive Reverse Interference Resistance
BBU Base Band Unit
BSC Base Station Controller
CAPEX Capital Expenditure
CC Control and Clock module
CDMA Code Division Multiple Access
CES Channel Element Subsystem
CH Channel Handling module
CPRI Common Public Radio Interface
CVI
Channel Processing Voice Interface
Module
DBS Database Subsystem
DFL uplex Filter & LNA
FA Fan Array module
GE Gigabit Ethernet
GPS Global Position System
MS/AT Mobile Station/Access Terminal
MTBF Mean Time Between Failures
OMC Operation and Maintenance Center
OPEX Operation Expenditure
OSS Operating System Subsystem
PA Power Amplifier
PDM Power Distribute Module
PM Power Module
RPDC RRU DC Power
RRU Remote RF Unit
RSU RF System Unit
RTR Transceiver and Receiver
RTR RRU Transceiver and Receiver
SA Site Alarm module
SDR Software Defined Radio
SPS Service Processing Subsystem
uTCA micro-Telecom Computing Architecture

ZXSDR BS8800 Technical Specifications

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ZXSDR BS8800 Technical Specifications