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缩写 全称 翻译

1xRTT CDMA2000 1x Radio Transmission Technology CDMA2000 1X无线传输技术

AC Alternating Current 交流电

AC Access Class (of the USIM) 访问类（ USIM ） ACI Adjacent Channel Interference 邻道干扰

ACIR Adjacent Channel Interference Ratio 邻道干扰比

ACK Acknowledgement (in HARQ protocols) 确认（ HARQ协议） ACL Adjacent Channel Leakage 邻道泄漏

ACLR Adjacent Channel Leakage power Ratio 相邻信道泄漏功率比 ACP Adjacent Channel Power 邻道功率

ACRR Adjacent Channel Rejection Ratio 邻道抑制比 ACS Adjacent Channel Selectivity 邻道选择性

aGW E-UTRAN Access Gateway E - UTRAN接入网关 AM Acknowledged Mode 确认模式

AMBR Aggregate Maximum Bit Rate 总计最大比特率 AMC Adaptive Modulation and Coding 自适应调制和编码 AMD AM Data AM数据

AMN Artificial Mains Network 人工电源网络

A-MPR Additional Maximum Power Reduction 附加的最大功率减少量 ANR Automatic Neighbour Relation 自动邻区关系 AP Application Protocol 应用协议

ARQ Automatic Repeat Request 自动重复请求 AS Access Stratum 接入层

ASN.1 Abstract Syntax Notation One 抽象语法符号 ATT Attenuator 衰减器

AWGN Additive White Gaussian Noise 加性高斯白噪声 B Bottom RF channel (for testing purposes) 底部的RF信道（用于测试目的） BCCH Broadcast Control Channel 广播控制信道 BCD Binary Coded Decimal 二进制编码的十进制 BCH Broadcast Channel 广播信道

BPSK Binary Phase Shift Keying 二进制相移键控 BS Base Station 基站

BSIC Base transceiver Station Identity Code 基站收发信机站识别码 BSR Buffer Status Report 缓冲区状态报告 BSS Base Station System 基站系统

BTS Base Transceiver Station 基站收发信台 BW Bandwidth 带宽

C/I Carrier-to-Interference Power Ratio 载波 - 干扰功率比 CA Carrier Aggregation 载波聚合 CACLR Cumulative ACLR 累积的ACLR

CAZAC Constant Amplitude Zero Auto-Correlation 幅度恒定零相关 CCCH Common Control CHannel 公共控制信道

CCCH SDU Common Control Channel SDU 公共控制信道SDU

CCE Control Channel Element 控制信道单元 CCO Cell Change Order 小区更改命令

CCTrCH Coded Composite Transport Channel 编码组合传输信道 CDD Cyclic delay diversity 循环延迟分集

CDF Cumulative Distribution Function 累积分布函数 CDMA Code Division Multiple Access 码分多址 CDN Coupling/Decoupling Network 耦合/去耦网络

CEPT European Conference of Postal and Telecommunications Administrations 欧洲邮政和电信主管部门会议

CFI Control Format Indicator 控制格式指示 CFN Connection Frame Number 连接帧号

CID Cell-ID (positioning method) 小区ID （定位方法） CID Context Identifier 上下文标识符 CIF Carrier Indicator Field 载波指示区

CMAS Commercial Mobile Alert Service 商业移动警报服务 CMC Connection Mobility Control 连接移动性控制 CN Core Network 核心网 CP Control Plane 控制平面 CP Cyclic Prefix 循环前缀

CPICH Common Pilot Channel 公共导频信道

CPICH Ec/No CPICH received energy per chip divided by the power density in the band CPICH的每码片接收能量除以频带内的功率密度 C-plane Control Plane 控制平面

CQI Channel Quality Indicator 信道质量指示 CRC Cyclic Redundancy Check 循环冗余校验 C-RNTI Cell RNTI 小区无线网络临时标识

CRS Cell-specific Reference Signal 小区固有的参考信号 CS Circuit Switched 电路交换域 CSFB CS fallback CS回退、语音回落

CSG Closed Subscriber Group 封闭用户组 CSI Channel-State Information 通道状态信息

CSI-IM CSI-interference measurement CSI干扰测量

CW Continuous Wave (unmodulated carrier wave) 连续波（未调制载波） DAI Downlink Assignment Index 下行分配索引 DC Direct Current 直流

DCCH Dedicated Control Channel 专用控制信道 DCI Downlink Control Information 下行链路控制信息 DFT Discrete Fourier Transformation 离散傅立叶变换 DFTS DFT Spread OFDM DFT扩频OFDM DiffServ Differentiated Service 区分服务

DL Down Link (From BTS to UE) 下行链路（从基站到UE ） DL Downlink (Forward Link) 下行（前向链路） DL-SCH Downlink Shared Channel 下行共享信道 DM-RS Demodulation reference signal 解调参考信号

DPCCH Dedicated Physical Control Channel 专用物理控制信道 DPCH Dedicated Physical Channel 专用物理信道 DRB (user) Data Radio Bearer （用户）数据无线承载 DRX Discontinuous Reception 不连续接收

DTCH Dedicated Traffic Channel 专用业务信道 DTT Digital Terrestrial Television 地面数字电视 DTX Discontinuous Transmission 不连续发射 DUT Device Under Test 被测设备

DwPTS Downlink Pilot Time Slot 下行导频时隙 E Extension bit 扩展位

EAB Extended Access Barring 扩展访问限制

EARFCN E-UTRA Absolute Radio Frequency Channel Number E-UTRA绝对无线电频道号码

ECC Electronic Communications Committee 电子通信委员会 ECCE Enhanced control channel element 增强的控制信道单元 ECEF Earth-Centered Earth-Fixed 地心地球固定

ECGI E-UTRAN Cell Global Identifier E-UTRAN小区全球标识 ECI Earth-Centered-Inertial 地心惯性

E-CID Enhanced Cell-ID (positioning method) 增强小区的ID （定位法） ECM EPS Connection Management EPS连接管理 EEC Ethernet Equipment Clock 以太网设备时钟

EGNOS European Geostationary Navigation Overlay Service 欧洲地球同步导航覆盖服务

EHPLMN Equivalent Home PLMN 等效归属PLMN EMC Electromagnetic Compatibility 电磁兼容性 EMM EPS Mobility Management EPS移动性管理 ENB Evolved Node B 演进基站

eNB E-UTRAN NodeB E - UTRAN基站 EP Elementary Procedure 基本过程

EPA Extended Pedestrian A model 扩展行人模型 EPC Evolved Packet Core 分组核心演进

EPDCCH Enhanced Physical Downlink Control Channel 增强的物理下行链路控制信道

EPRE Energy Per Resource Element 每资源粒子携带能源 EPS Evolved Packet System 演进分组系统

EPS Bearer Evolved Packet System Bearer 演进分组系统承载 E-RAB E-UTRAN Radio Access Bearer E-UTRAN无线接入承载

ERC European Radiocommunications Committee 欧洲无线电通讯委员会 EREG Enhanced resource-element group 增强资源元素组 ESD ElectroStatic Discharge 静电放电

ESM EPS Session Management EPS会话管理

E-SMLC Enhanced Serving Mobile Location Centre 增强服务移动定位中心 E-TM E-UTRA Test Model E- UTRA试验模型

ETU Extended Typical Urban model 扩展城市典型模型