LTE FDD digital cellular mobile telecommunication network technical requirement and test method of repeater
1 Scope
This standard specifies the technical requirements and test methods of the repeater of LTE FDD digital cellular mobile telecommunication network, such as wireless index, operation and maintenance function, power supply adaptability, environmental adaptability and safety.
This standard is applicable to wireless repeater, optical fiber repeater, frequency shift repeater and indoor distribution system amplifier (including host, trunk amplifier and extension amplifier, etc.) in LTE FDD single-mode repeater.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 4943.1-2011 Information technology equipment - Safety - Part 1: General requirements
ITU-R SM.329 Unwanted emissions in the spurious domain
3GPP TS 25.113 Base Station (BS) and repeater Electro Magnetic Compatibility (EMC)
3GPP TS 36.141 Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS) conformance testing (Release 9)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
LTE FDD repeater
full-duplex RF relay amplifier of LTE FDD mobile telecommunication network, including wireless repeater, optical fiber repeater and frequency shift repeater as well as host, extension and trunk amplifier in LTE FDD indoor distribution system
3.1.2
wireless repeater
repeater relaying by wireless transmission
3.1.3
optical fiber repeater
repeater relaying by optical fiber transmission
3.1.4
frequency shift repeater
repeater transmitting by frequency shift relay after converting the operating frequency to a specific relay frequency (microwave relay, short-wave relay, etc.)
3.1.5
broadband repeater
repeater operating with all assigned carriers in all or part of LTE FDD frequency bands
3.1.6
band selective repeater
repeater selecting one or more assigned carriers in all or part of LTE FDD frequency bands
3.1.7
trunk amplifier
relay amplifier that obtains signal by being directly connected with the donor source equipment through transmission line (cable or optical cable), then amplifies the signal and transmits it to an indoor or outdoor coverage area
3.1.8
indoor distribution system
system that distributes signal to various corners of buildings and basements, etc. through repeaters, power splitters, couplers, trunk amplifiers, photoelectric conversion modules, indoor antennas and feeders
3.1.9
downlink
link from base station to mobile station
3.1.10
uplink
link from mobile station to base station
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
ALC Automatic Level Control
BW Band Width
CW Continuous Wave
EVM Error Vector Magnitude
EVMDAT EVM of Test Data
EVMs EVM of Source
MIMO Multiple-Input Multiple-Output
NF Noise Figure
NRB Number of Resource Block
RB Resource Block
RMS Root Mean Square
4 Measurement conditions and judgment basis
4.1 Normal test conditions
Unless otherwise specified, all the tests shall be carried out under the following conditions.
——Temperature: 15℃~35℃.
——Relative humidity: 35%~75%.
4.2 Limit test conditions
For the limit test, measurement shall be conducted under any combination of the following conditions.
——Temperature and humidity.
● Low temperature: -40℃ (outdoor class I), -25℃ (outdoor class II) or +5℃ (indoor unit).
● High temperature: +55℃ (outdoor class I and class II) and +40℃ (indoor unit).
● Relative humidity: 95% (outdoor class I and class II) and 85% (indoor unit).
——Power supply voltage.
● AC 220V: low voltage +176V; high voltage +264V.
● DC -48V: low voltage -57.6V; high voltage -38.4V.
4.3 Requirements for equipment under test
See Annex A.
4.4 Requirements for test mode
See Annex B.
4.5 Test uncertainty
Table 1 lists the requirements for the uncertainty of test system, which shall be evaluated regularly.
Foreword i
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions
3.2 Abbreviations
4 Measurement conditions and judgment basis
4.1 Normal test conditions
4.2 Limit test conditions
4.3 Requirements for equipment under test
4.4 Requirements for test mode
4.5 Test uncertainty
4.6 Test judgment basis
4.7 Test method requirements
5 Operating band
6 Wireless indexes
6.1 Maximum output power
6.2 Automatic level control (ALC)
6.3 Maximum gain and error
6.4 Gain adjustment range
6.5 Gain adjustment step and error
6.6 Frequency error
6.7 Error vector magnitude
6.8 In-band fluctuation
6.9 Standing wave ratio of input voltage to output voltage
6.10 Out-of-band rejection
6.11 Input intermodulation
6.12 Undesirable emission
6.13 Noise figure
6.14 Blocking
6.15 Output intermodulation
6.16 Transmission delay
7 Power supply adaptability
7.1 High voltage test
7.2 Low voltage test
8 Environment test
8.1 Test environment conditions
8.2 Index requirements
8.3 Measurement method
9 Operation and maintenance function
9.1 Query function
9.2 Fault management function
9.3 Control functions
9.4 System safety management function
9.5 Locating information acquisition (optional)
9.6 Scheduling function (optional)
10 Safety requirements
11 Electromagnetic compatibility requirements
Annex A (Normative) Requirements of test equipment
Annex B (Normative) Test mode
Annex C (Informative) Operating band
Bibliography
LTE FDD数字蜂窝移动通信网直放站技术要求和测试方法
1 范围
本标准规定了LTE FDD数字蜂窝移动通信网直放站的无线指标、操作维护功能、电源适应性、环境适应性及安全等技术要求和测试方法。
本标准适用于LTE FDD单模直放站中的无线直放站、光纤直放站、移频直放站、室内分布系统放大器(包括主机、干线放大器、延伸放大器等)。
2 规范性引用文件
下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件,仅注日期的版本适用于本文件。凡是不注日期的引用文件,其最新版本(包括所有的修改单)适用于本文件。
GB 4943.1—2011 信息技术设备 安全 第1部分:通用要求
ITU-R SM.329 杂散辐射域无用辐射(Unwanted emissions in the spurious domain)
3GPP TS 25.113 基站和直放站电磁兼容性(EMC)(Base Station (BS) and repeater Electro Magnetic Compatibility (EMC))
3GPP TS 36.141 演进的通用陆地无线接入(E-UTRA);基站一致性测试(Evolved Universal Terrestrial Radio Access (E-UTRA);Base Station (BS) conformance testing (Release 9))
3 术语、定义和缩略语
3.1 术语和定义
下列术语和定义适用于本文件。
3.1.1
LTE FDD直放站LTE FDD repeater
用于LTE FDD移动通信网的全双工射频中继放大设备,包括无线直放站、光纤直放站、移频直放站和LTE FDD室内分布系统中的主机、分机、干线放大器等。
3.1.2
无线直放站 wireless repeater
以无线传输方式中继的直放站。
3.1.3
光纤直放站 optical fiber repeater
以光纤传输方式中继的直放站。
3.1.4
移频直放站 frequency shift repeater
将工作频率转换为特定中继频率(微波中继、短波中继等)后,采用移频中继方式进行传输的直放站。
3.1.5
宽带直放站 broadband repeater
在LTE FDD频段的全部或部分频段内所有指配载波工作的直放站。
3.1.6
选频直放站 band selective repeater
在LTE FDD频段的全部或部分频段内选择一个或多个指配载波工作的直放站。
3.1.7
干线放大器 trunk amplifier
通过传输线路(电缆或者光缆)直接与施主信源设备相接获得信号,予以放大再发射至一个室内或室外覆盖区域的中继放大器。
3.1.8
室内分布系统 indoor distribution system
通过直放站、功分器、耦合器、干线放大器、光电转换模块、室内天线、馈线等将信号分布到建筑物、地下室等各个角落的系统。
3.1.9
下行链路 downlink
由基站到移动台的链路。
3.1.10
上行链路 uplink
由移动台到基站的链路。
3.2 缩略语
下列缩略语适用于本文件。
ALC Automatic Level Control 自动电平控制
BW Band Width 带宽
CW Continuous Wave 连续波
EVM Error Vector Magnitude 误差矢量幅度
EVMDAT EVM of Test Data 测试数据EVM
EVMs EVM of Source 信源本身EVM
MIM0 Multiple-Input Multiple-Output 多入多出系统
NF Noise Figure 噪声系数
NRB Number of Resource Block 资源块个数
RB Resource Block 资源块
RMS Root Mean Square 均方根
4 测量条件及判决依据
4.1 常规测试条件
除特殊规定外,所有测试均应在下列条件下进行。
——温度:15℃~35℃。
——相对湿度:35%~75%。
4.2 极限测试条件