LTE常见缩略词总汇

<1>RAN 无线接入网<2>RNC 无线网络控制器负责对基站进行整体管理, 包括对无线资源、本地移动用户和接入情况进行管理和控制, 并对传输情况进行优化; RNC的主要功能为无线资源管理, 网络相关功能、无线资源控制(RRC)的维护和运行, 网管系统的接口等。

RNC的主要缺点为与空中接口相关的许多功能都在RNC中, 导致资源分配和业务不能适配信道, 协议结构过于复杂, 不利于系统优化。

<3>HSDPA 高速下行链路分组接入，是一种移动通信协议，亦称为3.5G(3&frac12;G)。

该协议在WCDMA下行链路中提供分组数据业务，在一个5MHz载波上的传输速率可达8-10 Mbit/s（如采用MIMO技术，则可达20 Mbit/s）。

在具体实现中，采用了自适应调制和编码（AMC）、多输入多输出（MIMO）、混合自动重传请求（HARQ）、快速调度、快速小区选择等技术。

<4>SGSN 服务支持节点负责管理分组交换数据流量的控制和管理。

<5>GGSN 网关支持节点负责与核心网的连接。

GGSN 是本地网与外部分组交换网之间的网关, 因此也被称为GPRS路由器<6>ACGW 核心接入网关AGW 接入网关<7>RRC 无线资源控制子层<8>RLC 无线链路控制<9> PDU 协议数据单元<10>ACK 确认应答<11>FEC 前向纠错<12>ACK命令正确应答<13>OFDMA 正交频分多址<14>OFDM 正交频分复用实际上OFDM是MCM Multi-CarrierModulation，多载波调制的一种。

其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。

正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰ICI 。

<1>RAN 无线接入网<2>RNC 无线网络控制器负责对基站进行整体管理, 包括对无线资源、本地移动用户和接入情况进行管理和控制, 并对传输情况进行优化; RNC的主要功能为无线资源管理, 网络相关功能、无线资源控制(RRC)的维护和运行, 网管系统的接口等。

RNC的主要缺点为与空中接口相关的许多功能都在RNC中, 导致资源分配和业务不能适配信道, 协议结构过于复杂, 不利于系统优化。

<3>HSDPA 高速下行链路分组接入，是一种移动通信协议，亦称为3.5G(3&frac12;G)。

该协议在WCDMA下行链路中提供分组数据业务，在一个5MHz载波上的传输速率可达8-10 Mbit/s（如采用MIMO技术，则可达20 Mbit/s）。

在具体实现中，采用了自适应调制和编码（AMC）、多输入多输出（MIMO）、混合自动重传请求（HARQ）、快速调度、快速小区选择等技术。

<4>SGSN 服务支持节点负责管理分组交换数据流量的控制和管理。

<5>GGSN 网关支持节点负责与核心网的连接。

GGSN 是本地网与外部分组交换网之间的网关, 因此也被称为GPRS路由器<6>ACGW 核心接入网关AGW 接入网关<7>RRC 无线资源控制子层<8>RLC 无线链路控制<9> PDU 协议数据单元<10>ACK 确认应答<11>FEC 前向纠错<12>ACK命令正确应答<13>OFDMA 正交频分多址<14>OFDM 正交频分复用实际上OFDM是MCM Multi-CarrierModulation，多载波调制的一种。

其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。

正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰ICI 。

作用及含义下行链路自适应：主要指自适应调制编码（AMC：adaptive modulation and coding），通过各种不同的调制方式（QPSK、16QAM和64QAM）和不同的信道编码率来实现。

上行链路自适应：包括有三种链路自适应方法：1. 自适应发射带宽；2. 发射功率控制；3. 自适应调制和信道编码率。

ARQ功能由 RLC子层完成，具有如下特性：ARQ 重传RLC PDU 或RLC PDU 分段；ARQ 重传基于RLC 状态报告触发，也可以基于HARQ/ARQ 的交互情况来触发。

RLC 根据需要轮询RLC 状态报告；状态报告可由上层触发。

如果HARQ 发送端检测到一个传输块（TB）失败传输次数达到了最大重传限制，相关的ARQ 实体将收到通知并可能启动重传或重分段操作。

该信道为传输广播系统控制信息传输使用的下行信道。

该信道采用固定的预定义传输格式，并且能够在整个小区覆盖区域内广播经过信源编码含有信息的数据称为比特从驻留状态到激活状态，也就是类似于从 Release 6 的空闲模式到 CELL_DCH 状态，控制面的传输延迟时间小于100ms，这个时间不包括寻呼延迟时间和NAS 延迟时间；当终端和网络侧没有RRC连接时，终端级别控制信息的传输使用该信道，该信道使用上行和下行。

CCE：Control Channel Element。

CCE = 9 REG经过最终扩频得到的数据称为码片连接移动性管理（CMC）主要用于空闲（idle）模式或连接（connected）模式下移动性相关无线资源的管理。

在空闲模式下，通过设置相关参数（如门限值和迟滞值）来控制小区重选算法，这些参数定义了最好小区和/或确定UE 何时应该选择一个新小区。

同时，EUTRAN 广播 UE 测量配置和报告配置的相关参数。

在连接模式下，必须支持无线连接的移动性。

切换判决可以基于UE 和eNB 的测量结果。

另外，切换判决可以考虑其它因素，如邻小区负载，业务分布，传输和硬件资源以及只要CP的长度大于信道的时延扩展，就完全可以消除码间干扰。

MR频率使用（1）宏站注：D（2）室分E频段作为本期TD-LTE室内分布系统的主要使用频段，使用2320-2370MHz共50MHz 频率，在有特殊需求的场景可以使用F频段（1880-1900MHz）共20MHz频率。

E频段原则上使用2320-2340MHz（频点号38950）频率，在室内小区间异频组网场景，容量需求较高时相邻小区可分别使用2320-2340MHz（频点号38950）和2340-2360MHz（频点号39150）频率。

1.业务时隙及特殊子帧配比2.PCI使用原则1)同一站点的PCI分配在同一个PCI组内，相邻站点的PCI分配在不同的PCI组内,对于三扇区eNB，三个小区按照顺时针方向从正北方向开始，组内ID 分别配置为0,1,2；相邻eNB分配不同的小区组ID并在整网复用；2)避免冲突，即对于存在覆盖交叠的相邻小区避免分配相同的PCI；3)避免混淆，避免每个小区的邻区列表中小区的PCI相同；4)避免模3相同的PCI分配给邻区，规避相邻小区的PSS序列相同，或规避双端口小区RS0和相邻另一双端口小区RS1信号之间的频域位置相同；5)避免模6相同的PCI分配给邻区，规避相邻小区RS0信号的频域位置相同；6)室外用F/D频段，室内用E频段，不同频点可以复用PCI；7)室外PCI总数为504个，预留20％作为后期新增站点使用，建议402-503预留，目前开站使用0~401即可；室分无影响，不需要预留；8)室外密集城区/一般城区按2.5km覆盖半径进行规划，郊区/农村按5km覆盖半径进行规划。

3.TAC（1）LTE TAC与2G LAC保持一致，即TAC值= 2G的LAC值，按照4G站点所在地理位置，从属于相应的2G LAC区。

（2）TA区尽量和2G的LA区对齐，各地在后期的日常维护中可能对2G的LA 进行调整，需同步对TA和LA进行联合调整及优化。

（3）对于2G、4G室外共站的，TA与LA应严格保持一致；（4）对于室内分布系统，TA与LA应严格保持一致。

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读者对象本文档主要适用于以下工程师：l网络规划工程师l eNodeB安装员l现场工程师l系统工程师l网络值班员l站点维护员l网络操作员l网管工程师内容简介1 数字2 A3 B4 C5 D6 E7 F8 G9 H10 I11 J12 K13 L14 M15 N16 O17 P18 Q19 R20 S21 T22 U23 V24 W25 X26 Y27 Z约定符号约定在本文中可能出现下列标志，它们所代表的含义如下。

通用格式约定命令行格式约定图形界面元素引用约定键盘操作约定鼠标操作约定目录前言 (ii)1 数字 (1)2 A (2)3 B (4)4 C (5)5 D (8)6 E (10)7 F (12)8 G (14)9 H (16)10 I (17)11 J (19)12 K (21)13 L (22)14 M (24)15 N (26)16 O (27)17 P (28)18 Q (30)19 R (31)20 S (33)21 T (36)22 U (38)23 V (39)24 W (40)25 X (42)26 Y (44)27 Z (46)术语 1 数字1数字1xCS IWS3GPP2 1xCS 电路域交换回落网络方案(Circuit Switched Fallback InterworkingSolution Function for 3GPP2 1xCS)3倍数据加密标准3DES（即Triple DES）是DES向AES过渡的加密算法（1999年，NIST将3-DES指定为过渡的加密标准），是DES的一个更安全的变形。

LTE-各种英文缩写解释<1>RAN 无线接入网<2>RNC 无线网络控制器负责对基站进行整体管理, 包括对无线资源、本地移动用户和接入情况进行管理和控制, 并对传输情况进行优化; RNC的主要功能为无线资源管理, 网络相关功能、无线资源控制(RRC)的维护和运行, 网管系统的接口等。

RNC的主要缺点为与空中接口相关的许多功能都在RNC中, 导致资源分配和业务不能适配信道, 协议结构过于复杂, 不利于系统优化。

<3>HSDPA 高速下行链路分组接入，是一种移动通信协议，亦称为 3.5G(3&frac12;G)。

该协议在WCDMA下行链路中提供分组数据业务，在一个5MHz载波上的传输速率可达8-10 Mbit/s（如采用MIMO技术，则可达20 Mbit/s）。

在具体实现中，采用了自适应调制和编码（AMC）、多输入多输出（MIMO）、混合自动重传请求（HARQ）、快速调度、快速小区选择等技术。

<4>SGSN 服务支持节点负责管理分组交换数据流量的控制和管理。

<5>GGSN 网关支持节点负责与核心网的连接。

GGSN 是本地网与外部分组交换网之活状态的连接移动性控制。

<26>MAC 媒体访问控制<27> PDU 协议数据单元<28> PDCP 包数据汇聚协议<29>SAE 系统结构演变<30>ARQ 自动重发请求<31>HARQ 混合自动重发请求<32>TCP 传输控制协议<33>3GPP LTE物理层(层1)在传输技术[1]、空中接口协议结构层(层2)和网络结构[2]<34>3GPP LTE的层2 协议支持属于同一终端的多个无线承载在MAC层的复接<35>MBMS 多媒体广播及多播业务<36>MCH 多播信道<37>DL-SCH 下行共享信道<38> MIMO 多输入多输出MIMO 的优点是能够增加无线范围并提高性能。

<1>RAN 无线接入网<2>RNC 无线网络控制器负责对基站进行整体管理, 包括对无线资源、本地移动用户和接入情况进行管理和控制, 并对传输情况进行优化; RNC的主要功能为无线资源管理, 网络相关功能、无线资源控制(RRC)的维护和运行, 网管系统的接口等。

RNC的主要缺点为与空中接口相关的许多功能都在RNC中, 导致资源分配和业务不能适配信道, 协议结构过于复杂, 不利于系统优化。

<3>HSDPA 高速下行链路分组接入，是一种移动通信协议，亦称为3.5G(3&frac12;G)。

该协议在WCDMA下行链路中提供分组数据业务，在一个5MHz载波上的传输速率可达8-10 Mbit/s（如采用MIMO技术，则可达20 Mbit/s）。

在具体实现中，采用了自适应调制和编码（AMC）、多输入多输出（MIMO）、混合自动重传请求（HARQ）、快速调度、快速小区选择等技术。

<4>SGSN 服务支持节点负责管理分组交换数据流量的控制和管理。

<5>GGSN 网关支持节点负责与核心网的连接。

GGSN 是本地网与外部分组交换网之间的网关,因此也被称为GPRS路由器<6>ACGW 核心接入网关 AGW 接入网关<7>RRC 无线资源控制子层<8>RLC 无线链路控制<9> PDU 协议数据单元<10>ACK 确认应答<11>FEC 前向纠错<12>ACK命令正确应答<13>OFDMA 正交频分多址<14>OFDM 正交频分复用实际上OFDM是MCM Multi-CarrierModulation，多载波调制的一种。

其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。

正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰 ICI 。

字段CellID UARFCN PCI Azimuth LongitudeLatitudeeNodeBID eNodeBName eNodeBType SectorID CellName DownTiltE-DownTilt M-DownTilt GroudHeight Altitude AntennaType AntennaGain H-Beamwidth V-Beamwidth FeederType FeederLengthActiveStatusOutdoor TMA说明小区标识载波频点主小区标识方位角（度）经度纬度基站标识基站名称基站类型扇区标识小区名称下倾角（度）内置电下倾角（度）机械下倾角（度）天线地面高度天线海拔高度天线型号天线增益水平半功率波束宽度垂直半功率波束宽度馈线型号馈线长度小区是否可用是否为室外站是否有塔放取值是否必选数据类型：整型，取值范围：0～533是数据类型：整型，取值范围：0～20000是数据类型：整型，取值范围：0～503是数据类型：float，取值范围：0～360是数据类型：double，取值范围：-180.0～180.0是数据类型：double，取值范围：-90.0～90.0是数据类型：字符串是数据类型：字符串是数据类型：字符串是数据类型：字符串是数据类型：字符串是数据类型：float，取值范围：0～90否数据类型：float，取值范围：0～90否数据类型：float，取值范围：0～90否数据类型：float否数据类型：float否数据类型：字符串否数据类型：float否数据类型：float，取值范围：0～90否数据类型：float，取值范围：0～90否数据类型：字符串否数据类型：float否数据类型：（Yes,No）否数据类型：（Yes,No）否数据类型：字符串否。

<1>RAN 无线接入网<2>RNC 无线网络控制器负责对基站进行整体管理, 包括对无线资源、本地移动用户和接入情况进行管理和控制, 并对传输情况进行优化; RNC的主要功能为无线资源管理, 网络相关功能、无线资源控制(RRC)的维护和运行, 网管系统的接口等。

RNC的主要缺点为与空中接口相关的许多功能都在RNC中, 导致资源分配和业务不能适配信道, 协议结构过于复杂, 不利于系统优化。

<3>HSDPA 高速下行链路分组接入，是一种移动通信协议，亦称为3.5G(3&frac12;G)。

该协议在WCDMA下行链路中提供分组数据业务，在一个5MHz载波上的传输速率可达8-10 Mbit/s（如采用MIMO技术，则可达20 Mbit/s）。

在具体实现中，采用了自适应调制和编码（AMC）、多输入多输出（MIMO）、混合自动重传请求（HARQ）、快速调度、快速小区选择等技术。

<4>SGSN 服务支持节点负责管理分组交换数据流量的控制和管理。

<5>GGSN 网关支持节点负责与核心网的连接。

GGSN 是本地网与外部分组交换网之间的网关, 因此也被称为GPRS路由器<6>ACGW 核心接入网关AGW 接入网关<7>RRC 无线资源控制子层<8>RLC 无线链路控制<9> PDU 协议数据单元<10>ACK 确认应答<11>FEC 前向纠错<12>ACK命令正确应答<13>OFDMA 正交频分多址<14>OFDM 正交频分复用实际上OFDM是MCM Multi-CarrierModulation，多载波调制的一种。

其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。

正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰ICI 。

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ACLRCAZAC 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SDUCCE 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OFDMDiffServ 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PLMNEMC 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ETWS Earthquake and Tsunami Warning System 地震和海啸预警系统EUT Equipment Under Test (UE or UE with ancillaries) 被测设备（UE或UE与辅助设备）E-UTRAN Evolved Universal Terrestrial Radio Access Network 演进的通用陆地无线接入网络EVA Extended Vehicular A model 增强的车辆模型EVM Error Vector Magnitude 误差矢量幅度FCC Federal Communications Commission 美国联邦通信委员会FDD Frequency Division Duplex 频分双工FDM Frequency Division Multiplexing 频分复用FFS For Further Study 为进一步研究FFT Fast Fourier Transformation 快速傅立叶变换FI Framing Info 帧信息FIR Finite Impulse Response 有限冲激响应FLOOR Mathematical function used to ‘round down’i.e. to the nearest integer having a lower value 使用数学函数“向下取整”，即具有一个较低的值最接近的整数FMS First missing PDCP SN 最初缺少的PDCP SNFRC Fixed Reference Channel 固定参考信道FSTD Frequency-Shift Time Diversity 频移时间多样性GAGAN GPS Aided Geo Augmented Navigation GPS辅助地理增强导航GBR Guaranteed Bit Rate 保证比特率GERAN GSM/EDGE Radio Access Network GSM/ EDGE无线接入网络GLONASS GLObal'naya NAvigatsionnaya Sputnikovaya Sistema (Engl.: Global Navigation Satellite System) （Engl. ：全球导航卫星系统）GMSK Gaussian Minimum Shift Keying 高斯最小频移键控GNSS Global Navigation Satellite System 全球导航卫星系统GP Guard Period (for TDD operation) 卫队周期（TDD的操作）GPS Global Positioning System 全球定位系统GSM Global System for Mobile communication 全球移动通信系统GSM-R GSM for Railways 铁路GSMGTP GPRS Tunnelling Protocol GPRS隧道协议GUMMEI Globally Unique MME Identifier 全球唯一MME标识HARQ Hybrid Automatic Repeat Request 混合自动重复请求HD-FDD Half- Duplex FDD 半双工FDDHFN Hyper Frame Number 超帧号HI HARQ indicator HARQ指示符HO Handover 交接HPLMN Home PLMN 归属PLMNHRPD CDMA2000 High Rate Packet Data CDMA2000高速分组数据HSDPA High Speed Downlink Packet Access 高速下行分组接入IANA Internet Assigned Number Authority 互联网编号分配机构ICIC Inter-Cell Interference Coordination 小区间干扰协调ICS In-Channel Selectivity 信道选择性ID Identity 标号IDC In-Device Coexistence 设备共存IDFT Inverse Discrete Fourier Transform 离散傅立叶逆变换IE Information element 信息单元IETF Internet Engineering Task Force 互联网工程任务组IMSI International Mobile Subscriber Identity 国际移动用户识别码IoT Interference rise over thermal noise 热噪声的干扰上升超过IP Internet Protocol 互联网协议IQ In-phase - Quadrature phase 同相- 正交相位ISM Industrial, Scientific and Medical 工业，科学和医疗ITU International Telecommunications Union 国际电信联盟ITU R Radiocommunication Sector of the ITU 国际电联无线电通信部门Iuant E-Node B internal logical interface between the implementation specific O&M function and the RET antennas and TMAs control unit function of the E-Node B E- Node B的内部执行特定的O＆M功能的RET天线的TMA控制单元的E - Node B的功能之间的逻辑接口IXIT Implementation eXtra Information for Testing 实现额外的测试信息kB Kilobyte (1000 bytes) 千字节（1000字节）L1 Layer 1 (physical layer) 第1层（物理层）L2 Layer 2 (data link layer) 第2层（数据链路层）L3 Layer 3 (network layer) 第3层（网络层）LA Local Area 位置区LB Load Balancing 负载平衡LB Loop Back 环回LCG Logical Channel Group 逻辑信道组LCR Low Chip Rate 低码片速率LCS LoCation Services 位置服务LCS-AP LCS Application Protocol LCS应用协议LI Length Indicator 长度指示LISN Line Impedance Stabilizing Network 线路阻抗稳定网络LMU Location Measurement Unit 位置测量单元LNA Low Noise Amplifier 低噪声放大器LPP LTE Positioning Protocol LTE定位协议LPPa LTE Positioning Protocol Annex LTE定位协议附件LSF Last Segment Flag 最后一节标志LTE Long Term Evolution 长期演进M Middle RF channel (for testing purposes) 中心RF信道（用于测试目的）MAC Media Access Control 媒体访问控制MAC-I Message Authentication Code for Integrity 完整性的消息认证码MBMS Multimedia Broadcast Multicast Service 多媒体广播组播服务MBMS Multimedia Broadcast and Multicast Service 多媒体广播和多播服务MBR Maximum Bit Rate 最大比特率MBSFN Multimedia Broadcast multicast service Single Frequency Network 多媒体广播多播服务单频网MC Monte-Carlo 蒙特卡洛MCC Mobile Country Code 移动国家代码MCCH Multicast Control Channel 多播控制信道MCE Multi-cell/multicast Coordination Entity Multi-cell/multicast协调实体MCH Multicast channel 多播信道MCL Minimum Coupling Loss 最小耦合损耗MCS Modulation and Coding Scheme 调制和编码方案MDT Minimization of Drive Tests 小型路测MIB Master Information Block 主信息块MIMO Multiple Input Multiple Output 多输入多输出MM Mobility Management 移动性管理MME Mobility Management Entity 移动性管理实体MNC Mobile Network Code 移动网络代码MO Mobile Originating 移动发起MO-LR Mobile Originated Location Request 移动发起定位请求MOP Maximum Output Power 最大输出功率MPR Maximum Power Reduction 最大功率减少MR Medium Range 中等范围MRB MBMS Point to Multipoint Radio Bearer MBMS点对多点无线承载M-RNTI MBMS RNTI MBMS RNTIMRO Mobility Robustness Optimisation 移动健全优化MRP Mouth Reference Point (artificial head) 参考点（人工头）MSAP MCH Subframe Allocation Pattern MCH子帧分配模式MSI MCH Scheduling Information MCH调度信息MSR Maximum Sensitivity Reduction 最大灵敏度降低MT Mobile Terminating 移动终端MTCH MBMS Traffic Channel MBMS业务信道MT-LR Mobile Terminated Location Request 移动终端的位置请求N/A Not Applicable 是否适用NACC Network Assisted Cell Change 网络辅助小区变化NACK Non-Acknowledgement 非确认NAS Non Access Stratum 非接入层NCC Next Hop Chaining Counter 下一跳链接计数器NDS Network Domain Security 网络域安全NH Next Hop key 下一跳键NI-LR Network Induced Location Request 网络引导位置请求NNSF NAS Node Selection Function NAS节点选择功能NR Neighbour cell Relation 邻区关系NRT Neighbour Relation Table 邻居关系表OBW Occupied Band Width 占用带宽OCNG OFDMA Channel Noise Generator OFDMA信道噪声发生器OFDM Orthogonal Frequency Division Multiplex 正交频分复OFDMA Orthogonal Frequency Division Multiple Access 正交频分多址接入OOB Out-Of-Band 输出波段OOB Out-of-band 带外PA Power Amplifier 功率放大器PAPR Peak-to-Average Power Ratio 峰- 均功率比PB Pass Band 通带PBCH Physical Broadcast Channel 物理广播信道PBR Prioritised Bit Rate 优先速率PC Power Control 功率控制PCCH Paging Control Channel 寻呼控制信道P-CCPCH Primary Common Control Physical Channel 主公共控制物理信道PCell Primary Cell 主小区PCFICH Physical Control Format Indicator Channel 物理控制格式指示信道PCH Paging channel 寻呼信道PCI Physical Cell Identifier 物理小区标识PDCCH Physical Downlink Control Channel 物理下行链路控制信道PDCP Packet Data Convergence Protocol 分组数据汇聚协议PDSCH Physical Downlink Shared Channel 物理下行链路共享信道PDU Protocol Data Unit 协议数据单元P-GW PDN Gateway PDN网关PHICH Physical Hybrid ARQ Indicator Channel 物理混合ARQ指示信道PHR Power Headroom Report 功率余量报告PHY Physical layer 物理层PICS Protocol Implementation Conformance Statement 协议实现一致性声明PIXIT Protocol Implementation eXtra Information for Testing 协议实现附加测试信息PLMN Public Land Mobile Network 公用陆地移动网PMCH Physical Multicast channel 物理多播信道PMI Precoding Matrix Indicator 预编码矩阵指示灯PPP Point to Point Protocol 点对点协议PRACH Physical Random Access channel 物理随机接入信道PRB Physical Resource Block 物理资源块P-RNTI Paging RNTI 寻呼RNTIPRS Positioning Reference Signal 定位参考信号PS Packet Switched 分组交换PS Physical Slot 物理插槽PSC Packet Scheduling 分组调度PSD Power Spectral Density 功率谱密度PSS Primary Synchronization Signal 主同步信号PSS_RA PSS-to-EPRE ratio for the channel PSS 信道PSS的PSS - EPRE比率PTAG Primary Timing Advance Group 首要时序组PTI Precoding Type Indicator 预编码类型指标PUCCH Physical Uplink Control Channel 物理上行链路控制信道PUSCH Physical Uplink Shared Channel 物理上行链路共享信道QAM Quadrature Amplitude Modulation 正交幅度调制QCI Quality of service Class Identifier. 服务质量等级标识。

<1>RAN 无线接入网<2>RNC 无线网络控制器负责对基站进行整体管理, 包括对无线资源、本地移动用户和接入情况进行管理和控制, 并对传输情况进行优化; RNC的主要功能为无线资源管理, 网络相关功能、无线资源控制(RRC)的维护和运行, 网管系统的接口等。

RNC的主要缺点为与空中接口相关的许多功能都在RNC中, 导致资源分配和业务不能适配信道, 协议结构过于复杂, 不利于系统优化。

<3>HSDPA 高速下行链路分组接入，是一种移动通信协议，亦称为3.5G(3&frac12;G)。

该协议在WCDMA下行链路中提供分组数据业务，在一个5MHz载波上的传输速率可达8-10 Mbit/s（如采用MIMO技术，则可达20 Mbit/s）。

在具体实现中，采用了自适应调制和编码（AMC）、多输入多输出（MIMO）、混合自动重传请求（HARQ）、快速调度、快速小区选择等技术。

<4>SGSN 服务支持节点负责管理分组交换数据流量的控制和管理。

<5>GGSN 网关支持节点负责与核心网的连接。

GGSN 是本地网与外部分组交换网之间的网关, 因此也被称为GPRS路由器<6>ACGW 核心接入网关AGW 接入网关<7>RRC 无线资源控制子层<8>RLC 无线链路控制<9> PDU 协议数据单元<10>ACK 确认应答<11>FEC 前向纠错<12>ACK命令正确应答<13>OFDMA 正交频分多址<14>OFDM 正交频分复用实际上OFDM是MCM Multi-CarrierModulation，多载波调制的一种。

其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。

正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰ICI 。

这两天在看MDCN网络系统的时候，碰到很多很多的术语，为了对这个MDCN 系统有进一步的了解，于是每碰到一个术语就百度一下，再一次让我感觉到，百度真是好东西，因为不只是百度到我直接想要的东西，还间接百度到我更加想要的知识。

现在把这两天我看到的、我学到的和我暂时没有用到的一些移动通信术语跟大家分享一下，也许你现在用不着，但只要你身在移动，你还是有可能碰到的。

这些术语肯定不是很全面的，欢迎大家补充啊！AAAA：鉴权、认证、计费AAS：自适应天线系统AIE：增强互联演进AMR：自适应多速率API：应用程序接口AR：接入路由器ASON：自动交换光网络AUC：鉴权中心BB3G：后3GBG：边界网关BGP（Border Gateway Protocol，边界网关协议）BHSM：忙时短消息BICC：承载独立的呼叫控制BITS：大楼综合时钟系统BPSK：二进制相移键控BSC：基站控制器BSS：基站子系统BTS：基站CCAMEL：移动增强逻辑的客户化应用CDMA：码分多址接入CMPP：中国移动点对点短消息CG：计费网关CGI：小区全球标识号CMIP：公共管理信息协议CN：核心网络CORBA：公共对象请求代理体系结构COTS：使用现货CRBT（Coloring Ring Back Tone）多彩回铃音业务（彩铃）CSS：核心网子系统CR：提交报告CS：电路交换CSD：电路交换数据DDCS（Data Center System）数据缓存中心DHCP：动态主机配置协议DSMP：数据业务管理平台DWDM：密集波分复用DXC：数字交叉连接EEAI：企业应用集成EDGE：GPRS演进的增强数据E-OTD：增强型观测时间差分ETOM：增强电信运营视图FFCAPS：故障、配置、计费、性能、安全FDD：频分双工FDMA：频分多址接入FR(Frame Relay): 帧中继GGIS：地理信息系统GGSN：网关GPRS支持节点GMLC：网关移动位置中心GMSK：高斯调制相移键控GMSC：网关移动交换中心8PSK：8进制相移键控GPRS：通用分组无线业务GRE:通用路由封装(Generic Routing Encapsulation)HHA High Availability 高可用HDR：高数据速率HLR：本地位置登记器HSDPA：高速下行分组接入HSTP：高级信令转换点HSUPA：高速上行分组接入IIDS Intrusion Detection Systems 入侵检测系统IN：智能网IMS：多媒体子系统IRP：综合参考点ISMG 短信网关ISMG全称Internet Short Message Gateway IP：智能外设ISIS分级的链接状态路由协议ISO：互联网标准化组织IVR：交互式语音响应ITU；国际电信联盟JKKVM：Kjava虚拟机LLB Load Balance 负载均衡LCS：位置业务LLC：逻辑链路控制LMDS：Local Multipoint Distribution Services本地多点分配系统LSTP：低级信令转换点LTE：长期演进MMDCN移动数据通讯网Mesh：无线网状网络multicast组播MGCP：MGW：媒体网关MIDP：移动信息设备描述MIMO：多入多出MMS：多媒体消息业务MMDS：Multichannel Muitipoint Distribution Service城域多点分配系统MPLS(Multi-Protocol Label Switching) 多协议标记交换MSC：移动交换中心MSTP：多业务传送平台NNAS：网络接入服务器NC2：网络操作模式2NEF：网元功能NGOSS：下一代运营支撑系统NTP：网络授时服务NodeB ：节点B（3G基站）OOAM -- Operation Administration and Maintenance OADM：光分插复用OFDM：正交频分复用OMA：运营商融合组织OSA：开放业务架构OSI：开放标准互联OTA：空中下载OTN：光传送网络OXC：光交叉连接PPBCCH：分组广播公共信道PCCCH：分组公共控制信道PCU：分组控制单元PDTCH：分组数据业务信道PIM：号码管家PON：无源光网络PS：分组交换QQOS：业务质量QPSK：四进制相移键控RRADIUS：用户认证服务器RANAP：无线接入网络应用协议RNC：无线网络控制器RNS：无线网络子系统SSAE：业务架构环境SCE：业务生成环境SCP：业务控制平台SDH：同步数字结构SGSN：服务GPRS支持节点SID：共享信息数据SIGTRAN：信令转换SIP：会话发起协议SLA：服务等级协议SMLC：服务移动位置中心SMAP：业务管理接入平台SMD：业务管理平台SMP：业务管理平台SMPP：短消息点对点协议SMSC：短消息交换中心SNMP：简单网络管理协议SONET：同步光网络SOG：业务运营网关SRF：辅助资源功能Sso Single sign-on单点登陆SSP：业务交换平台STK：SIM卡工具包TTCC：发射合成单元TDD：时分双工TDMA：时分多址接入TD－SCDMA：时分－同步码分多址接入TMSC：二级业务汇接中心（移动）汇接移动交换中心，主要就是省局之间的交换（中国的省较大，如果是一些小的国家的话，那TMSC就是国家与国家之间的交换局了）TMN：电信管理网络TR：二级业务汇接中心（移动）UUAP：统一应用平台UE：用户设备UL-TOA：上行链路－到达时间UMTS：通用移动通信系统UniCast 单播USSD：非结构化业务数据UTRAN：UMTS陆地无线接入网络Uu接口：空中接口VVC：充值中心VLR：拜访位置登记器VPMN：虚拟专用移动网络VPN：虚拟专用网VMSC：当前移动交换中心WWAP：无线应用协议WCDMA：宽带码分多址接入WDM：波分复用WiMAX：无线互联微波接入WLAN：无线本地接入网络WMAN：无线城域网WSP：无线会话层协议WTBS：移动WAP类第三方业务(简称WAP业务)支撑系统WTCP：无线事务控制协议XXDSL：扩展数字用户线。

Abbreviations0-91x RTT CDMA2000 1x Radio TransmissionTechnology2G 2nd Generation3G 3rd Generation3GPP Third Generation Partnership Project 8-PSK 8-state Phase Shift KeyingAA-SGW Access Signalling GatewayA3 Authentication algorithm A3A38 A single algorithm performing thefunctions of A3 and A8A5/1 Encryption algorithm A5/1A5/2 Encryption algorithm A5/2A5/X Encryption algorithm A5/0-7A8 Ciphering key generating algorithmA8AAL ATM Adaptation LayerAAL2 ATM Adaptation Layer type 2AAL5 ATM Adaptation Layer type 5AB Access BurstAC Access Class (C0 to C15)Access ConditionApplication ContextAuthentication CentreACC Automatic Congestion ControlACELP Algebraic Code Excited LinearPredictionACCH Associated Control ChannelACIR Adjacent Channel Interference Ratio ACK AcknowledgementACL APN Control ListACLR Adjacent Channel Leakage PowerRatioACM Accumulated Call MeterAddress Complete Message ACMmax ACM (Accumulated Call Meter)maximal valueACRR Adjacent Channel Rejection RatioACS Adjacent Channel SelectivityACU Antenna Combining Unit ADC Administration CentreAnalogue to Digital Converter ADCH Associated Dedicated ChannelADF Application Dedicated FileADM Access condition to an EF which isunder the control of the authoritywhich creates this fileADN Abbreviated Dialling Numbers ADPCM Adaptive Differential Pulse CodeModulationAE Application EntityAEC Acoustic Echo ControlAEF Additional Elementary Functions AESA ATM End System AddressAFC Automatic Frequency Control AGCH Access Grant CHannelAi Action indicatorAI Acquisition IndicatorAICH Acquisition Indicator ChannelAID Application IDentifierAIUR Air Interface User RateAK Anonymity KeyAKA Authentication and Key Agreement AKI Asymmetric Key IndexALCAP Access Link Control ApplicationProtocolALSI Application Level Subscriber Identity ALW ALWaysAM Acknowledged ModeAMF Authentication Management Field AMN Artificial Mains NetworkAMR Adaptive Multi RateAMR-WB Adaptive Multi Rate Wide BandAN Access NetworkANP Access Network ProviderAoC Advice of ChargeAoCC Advice of Charge ChargingAoCI Advice of Charge InformationAP Access preambleAPDU Application Protocol Data UnitAPI Application Programming Interface APN Access Point NameARFCN Absolute Radio Frequency ChannelNumberARP Address Resolution ProtocolARQ Automatic Repeat ReQuestARR Access Rule ReferenceAS Access StratumASC Access Service ClassASCI Advanced Speech Call ItemsASE Application Service ElementASN.1 Abstract Syntax Notation OneAT command ATtention CommandATM Asynchronous Transfer ModeATR Answer To ResetATT (flag) AttachAU Access UnitAuC Authentication CentreAUT(H) AuthenticationAUTN Authentication tokenAWGN Additive White Gaussian NoiseBB-ISDN Broadband ISDNBA BCCH AllocationBAIC Barring of All Incoming CallsBAOC Barring of All Outgoing CallsBC Band CategoryBCC Base Transceiver Station (BTS)Colour CodeBCCH Broadcast Control ChannelBCD Binary Coded DecimalBCF Base station Control FunctionBCFE Broadcast Control Functional Entity BCH Broadcast ChannelBCIE Bearer Capability InformationElementBDN Barred Dialling NumberBER Bit Error RatioBasic Encoding Rules (of ASN.1) BFI Bad Frame IndicationBG Border GatewayBGT Block Guard TimeBI all Barring of Incoming callBIC Baseline Implementation Capabilities BIC-Roam Barring of Incoming Calls whenRoaming outside the home PLMNcountryBID Binding IdentityBLER Block Error RatioBm Full-rate traffic channelBMC Broadcast/Multicast ControlBN Bit NumberBO all Barring of Outgoing callBOC Bell Operating CompanyBOIC Barring of Outgoing InternationalCallsBOIC-exHC Barring of Outgoing InternationalCalls except those directed to theHome PLMN CountryBPSK Binary Phase Shift KeyingBS Base StationBasic Service (group)Bearer ServiceBSG Basic Service GroupBSC Base Station ControllerBSIC Base transceiver Station Identity Code BSIC-NCELL BSIC of an adjacent cellBSR Buffer Status ReportBSS Base Station SubsystemBSSAP Base Station Subsystem ApplicationPartBSSGP Base Station Subsystem GPRSProtocolBSSMAP Base Station Subsystem ManagementApplication PartBSSOMAP Base Station Subsystem Operation andMaintenance Application Part BTFD Blind Transport Format DetectionBTS Base Transceiver StationBVC BSS GPRS Protocol VirtualConnectionBVCI BSS GPRS Protocol VirtualConnection IdentifierBW BandwidthBWT Block Waiting TimeCC ConditionalC- Control-C/I Carrier-to-Interference Power RatioCA Carrier AggregationC-APDU Command APDUC-RNTI Cell Radio Network TemporaryIdentityC-TPDU Command TPDUCA Capacity AllocationCell AllocationCertification AuthorityCAA Capacity AllocationAcknowledgementCAD Card Acceptance DeviceCAI Charge Advice InformationCAMEL Customised Application for Mobilenetwork Enhanced LogicCAP CAMEL Application PartCAZAC Constant Amplitude ZeroAuto-CorrelationCB Cell BroadcastCBC Cell Broadcast CentreCipher Block ChainingCBCH Cell Broadcast CHannelCBMI Cell Broadcast Message Identifier CBR Constant Bit RateCBS Cell Broadcast ServiceCC Call ControlCountry CodeCryptographic ChecksumComponent CarrierCC/PP Composite Capability/PreferenceProfilesCCBS Completion of Calls to BusySubscriberCCCH Common Control ChannelCCE Control Channel ElementCCF Call Control FunctionCCH Control ChannelCCI Capability / Configuration Identifier CCITT Comité Consultatif InternationalTélégraphique et Téléphonique (TheInternational Telegraph and TelephoneConsultative Committee)CCK Corporate Control KeyCCM Certificate Configuration MessageCurrent Call MeterCCO Cell Change OrderCCP Capability/Configuration Parameter CCPCH Common Control Physical Channel Cct CircuitCCTrCH Coded Composite Transport Channel CD Capacity DeallocationCollision Detection CDA Capacity DeallocationAcknowledgementCDCH Control-plane Dedicated CHannel CDMA Code Division Multiple Access CDN Coupling/Decoupling NetworkCDR Charging Data RecordCDUR Chargeable DURationCED called station identifierCEIR Central Equipment Identity Register CEND end of charge pointCEPT Conférence des administrationsEuropéennes des Postes etTelecommunicationsCF Conversion Facilityall Call Forwarding servicesCFB Call Forwarding on mobile subscriberBusyCFN Connection Frame NumberCFNRc Call Forwarding on mobile subscriberNot ReachableCFNRy Call Forwarding on No ReplyCFU Call Forwarding UnconditionalCGI Common Gateway InterfaceCell Global IdentifierCHAP Challenge Handshake AuthenticationProtocolCHP CHarging PointCHV Card Holder Verification information CI Cell IdentityCUG indexCID Cell-ID (positioning method)CIM Common Information ModelCIR Carrier to Interference RatioCK Cipher KeyCKSN Ciphering Key Sequence Number CLA CLAssCLI Calling Line IdentityCLIP Calling Line IdentificationPresentationCLIR Calling Line Identification Restriction CLK ClockCM Connection ManagementCMAS Commercial Mobile Alert Service CMC Connection Mobility ControlCMD CommandCMIP Common Management InformationProtocolCMISE Common Management InformationServiceCMM Channel Mode ModifyCN Core NetworkComfort NoiseCNAP Calling Name PresentationCNG Calling ToneCNL Co-operative Network ListCNTR CounterCLNP Connectionless network protocol CLNS Connectionless network service COLI COnnected Line IdentityCOLP COnnected Line identificationPresentationCOLR COnnected Line identificationRestrictionCOM COMpleteCONNACK Connect AcknowledgementCONS Connection-oriented network service CORBA Common Object Request BrokerArchitectureCP Cyclic prefixCP-Admin Certificate Present (in the MExESIM)-AdministratorCP-TP Certificate Present (in the MExESIM)-Third PartyCPBCCH COMPACT Packet BCCHCPICH Common Pilot ChannelCPCH Common Packet ChannelCPCS Common Part Convergence Sublayer CPS Common Part SublayerCPU Central Processing UnitC-plane Control PlaneC/R Command/Response field bitCQI Channel Quality IndicatorCRC Cyclic Redundancy CheckCRE Call Ree-establishment procedure CRNC Controlling Radio Network Controller CS-GW Circuit Switched GatewayCS Circuit SwitchedCoding SchemeCSCF Call Server Control FunctionCSD Circuit Switched DataCSE Camel Service EnvironmentCSG Closed Subscriber GroupCSGID Closed Subscriber Group IdentityCSI Channel State InformationCSPDN Circuit Switched Public Data Network CT Call Transfer supplementary serviceChannel TesterChannel TypeCTCH Common Traffic ChannelCTDMA Code Time Division Multiple Access CTFC Calculated Transport FormatCombinationCTM Cellular Text telephone ModemCTR Common Technical RegulationCTS Cordless Telephony SystemCUG Closed User GroupCW Call WaitingContinuous Wave (unmodulatedsignal)CWI Character Waiting IntegerCWT Character Waiting TimeC-RNTI Cell RNTIDDAC Digital to Analog ConverterDAD Destination ADressDAM DECT Authentication ModuleDB Dummy BurstDC Dedicated Control (SAP)Direct CurrentDCA Dynamic Channel AllocationDCCH Dedicated Control ChannelDCE Data Circuit terminating EquipmentDCF Data Communication FunctionDCH Dedicated ChannelDCI Downlink Control InformationDCK Depersonalisation Control KeyDCN Data Communication NetworkDCS Data Coding SchemeDCS1800 Digital Cellular Network at 1800MHz DC-HSDPA Dual Cell HSDPADDI Direct Dial InDECT Digital Enhanced CordlessTelecommunicationsDET DetachDES Data Encryption StandardDF Dedicated FileDFT Discrete Fourier Transformation DHCP Dynamic Host Configuration Protocol DHO Diversity Handoverdiff-serv Differentiated servicesDISC DisconnectDL Data LayerDownlink (Forward Link)DLCI Data Link Connection IdentifierDLD Data Link DiscriminatorDL-SCH Downlink Shared channelDm Control channel (ISDN terminologyapplied to mobile service)DMR Digital Mobile RadioDMTF Distributed Management Task Force DN Destination NetworkDNIC Data Network IdentifierDNS Directory Name ServiceDO Data ObjectDP Dial/Dialled PulseDPCCH Dedicated Physical Control Channel DPCH Dedicated Physical Channel DPDCH Dedicated Physical Data Channel DRAC Dynamic Resource Allocation Control DRB Data Radio BearerDRNC Drift Radio Network Controller DRNS Drift RNSDRX Discontinuous ReceptionDS-CDMA Direct-Sequence Code DivisionMultiple AccessDSAC Domain Specific Access Control DSCH Downlink Shared ChannelDSE Data Switching ExchangeDSI Digital Speech InterpolationDSS1 Digital Subscriber Signalling No1 DTAP Direct Transfer Application Part DTCH Dedicated Traffic ChannelDTE Data Terminal EquipmentDTMF Dual Tone Multiple FrequencyDTT Digital Terrestrial TelevisionDTX Discontinuous TransmissionDUT Device Under TestDwPTS Downlink Pilot Timeslot EE-CID Enhanced Cell-ID (positioningmethod)E-GGSN Enhanced GGSNE-HLR Enhanced HLRE-RAB E-UTRAN Radio Access BearerE-SMLC Enhanced Serving Mobile LocationCentreE-TM E-UTRA Test ModelEA External AlarmsEARFCN E-UTRA Absolute Radio FrequencyChannel NumberEBSG Elementary Basic Service GroupECB Electronic Code-bookECC Emergency Call CodeElliptic Curve Cryptography ECEF Earth Centred, Earth FixedECGI E-UTRAN Cell Global IdentifierECI Earth-Centered-InertialECM Error Correction Mode (facsimile)EPS Connection Management Ec/No Ratio of energy per modulating bit tothe noise spectral densityECSD Enhanced CSDECT Explicit Call Transfer supplementaryserviceECTRA European Committee ofTelecommunications RegulatoryAffairsEDC Error Detection Code byteEDGE Enhanced Data rates for GSMEvolutionEEL Electric Echo LossEF Elementary File (on the UICC)EFR Enhanced Full RateEFS Error free secondsEGPRS Enhanced GPRSEHPLMN Equivalent Home PLMNEIR Equipment Identity CentreEquipment Identity Register EIRP Equivalent Isotropic Radiated Power EL Echo LossEF Elementary FileEM Element ManagerEMC ElectroMagnetic CompatibilityeMLPP enhanced Multi-Level Precedence andPre-emptionEMMI Electrical Man Machine InterfaceeNB E-UTRAN Node Bevolved Node BEP Elementary ProcedureEPA Extended Pedestrian A modelEPC Enhanced Power ControlEvolved Packet CoreEPRE Energy Per Resource ElementE-UTRA Evolved UTRAEvolved Universal Terrestrial RadioAccessE-UTRAN Evolved UTRANEvolved Universal Terrestrial RadioAccess NetworkEPS Evolved Packet SystemEPCCH Enhanced Power Control ChannelEPROM Erasable Programmable Read OnlyMemoryERP Ear Reference PointEquivalent Radiated Power ERR ErrorESD Electrostatic dischargeETNS European TelecommunicationsNumbering SpaceETR ETSI Technical ReportETS European TelecommunicationStandardETSI European TelecommunicationsStandards Instituteetu elementary time unitETU Extended Typical Urban modelETWS Earthquake and Tsunami WarningSystemEUI End-User IdentityEVA Extended Vehicular A modelEVM Error Vector MagnitudeFFA Full AllocationFax AdaptorFAC Final Assembly CodeFACCH Fast Associated Control CHannelFACCH/F Fast Associated Control Channel/FullrateFACCH/H Fast Associated Control Channel/HalfrateFACH Forward Access ChannelFAUSCH Fast Uplink Signalling ChannelFAX FacsimileFB Frequency correction BurstFBI Feedback InformationFCC Federal Communications Commission FCCH Frequency Correction CHannelFCI File Control InformationFCP File Control ParameterFCS Frame Check SequenceFDD Frequency Division DuplexFDM Frequency Division MultiplexFDMA Frequency Division Multiple Access FDN Fixed Dialling NumberFDR False transmit format Detection Ratio FEC Forward Error CorrectionFER Frame Erasure Rate, Frame Error Rate FFS For Further StudyFFT Fast Fourier TransformationFH Frequency HoppingFLO Flexible Layer OneFM Fault ManagementFMC Fixed Mobile ConvergenceFN Frame NumberFNUR Fixed Network User RateFP Frame ProtocolFPLMN Forbidden PLMNFR Full RateFRC Fixed Reference ChannelFTAM File Transfer Access and Management ftn forwarded-to numberGG-RNTI GERAN Radio Network TemporaryIdentityGAGAN GPS Aided Geo AugmentedNavigationGBR Guaranteed Bit RateGC General Control (SAP)GCR Group Call RegisterGERAN GSM EDGE Radio Access NetworkGGSN Gateway GPRS Support NodeGID1 Group Identifier (level 1)GID2 Group Identifier (level 2)GLONASS GLObal'naya NAvigatsionnayaSputnikovaya Sistema (Engl.: GlobalNavigation Satellite System) GMLC Gateway Mobile Location CentreGMM GPRS Mobility ManagementGMSC Gateway MSCGMSK Gaussian Minimum Shift KeyingGP Guard PeriodGPA GSM PLMN AreaGPRS General Packet Radio ServiceGPS Global Positioning SystemGRA GERAN Registration AreaGSA GSM System AreaGSIM GSM Service Identity ModuleGSM Global System for MobilecommunicationsGSN GPRS Support NodesGT Global TitleGTP GPRS Tunneling ProtocolGTP-U GPRS Tunnelling Protocol for UserPlaneGTT Global Text TelephonyGUMMEI Globally Unique MME IdentifierGUP 3GPP Generic User ProfileHH-CSCF Home CSCFHANDO HandoverHARQ Hybrid ARQ, Hybrid AutomaticRepeat RequestHCS Hierarchical Cell StructureHDLC High Level Data Link ControlHE Home EnvironmentHE-VASP Home Environment Value AddedService ProviderHF Human FactorsHFN HyperFrame NumberHHO Hard HandoverHLC High Layer CompatibilityHLR Home Location RegisterHN Home NetworkHO HandoverHOLD Call holdHPLMN Home Public Land Mobile Network HPS Handover Path SwitchingHPU Hand Portable UnitHR Half RateHRPD CDMA2000 High Rate Packet Data HRR Handover Resource ReservationHSCSD High Speed Circuit Switched DataHSDPA High Speed Downlink Packet Access HSN Hopping Sequence NumberHSPA High Speed Packet AccessHSS Home Subscriber ServerHSUPA High Speed Uplink Packet AccessHTTP Hyper Text Transfer ProtocolHTTPS Hyper Text Transfer Protocol Secure(https is http/1.1 over SSL, i.e. port443)HU Home UnitsII-Block Information BlockI-ETS Interim EuropeanTelecommunications Standard I/O Input/OutputI Information frames (RLP)IA Incoming Access (closed user groupSS)IAM Initial Address MessageIC Integrated CircuitInterlock Code (CUG SS) IC(pref) Interlock Code of the preferentialCUGICB Incoming Calls Barred (within theCUG)ICC Integrated Circuit CardICCID Integrated Circuit Card Identification ICD Interface Control DocumentICGW Incoming Call GatewayICI Incoming Call InformationICIC Inter-Cell Interference Coordination ICM In-Call ModificationICMP Internet Control Message ProtocolICS In-Channel SelectivityICT Incoming Call TimerID IdentifierIDFT Inverse Discrete Fourier Transform IDL Interface Definition LanguageIDN Integrated Digital NetworkIDNNS Intra Domain NAS Node SelectorIE Information ElementIEC International ElectrotechnicalCommissionIED Information Element DataIEI Information Element Identifier IEIDL Information Element Identifier DataLengthIETF Internet Engineering Task ForceIF InfrastructureIFD Interface DeviceIFOM IP FlOw MobilityIFS Information Field SizesIFSC Information Field Size for the UICC IFSD Information Field Size for theTerminalIHOSS Internet Hosted Octet Stream Service IIOP Internet Inter-ORB ProtocolIK Integrity keyIM IntermodulationIP MultimediaIMA Inverse Multiplexing on ATMIMC IMS CredentialsIMEI International Mobile EquipmentIdentityIMGI International mobile group identity IMPI IP Multimedia Private Identity IMPU IP Multimedia PUblic identityIMS IP Multimedia SubsystemIMSI International Mobile SubscriberIdentityIMT-2000 International MobileTelecommunications 2000IMUN International Mobile User Number IN Intelligent NetworkInterrogating NodeINAP Intelligent Network Application Part INF INFormation fieldIP Internet ProtocolIP-CAN IP-Connectivity Access NetworkIP-M IP MulticastIPv4 Internet Protocol Version 4IPv6 Internet Protocol Version 6IR InfraredIRP Integration Reference PointIS Interface SpecificationISC International Switching Centre ISCP Interference Signal Code PowerISDN Integrated Services Digital Network ISIM IM Services Identity ModuleISO International Organisation forStandardisationISP Internet Service ProviderISUP ISDN User PartITC Information Transfer CapabilityITU International TelecommunicationUnionITU-R Radiocommunication Sector of theITUIUI International USIM IdentifierIUT Implementation Under TestIWF InterWorking FunctionI-WLAN Interworking WLANIWMSC InterWorking MSCIWU Inter Working UnitJJAR file Java Archive FileJCRE Java Card™ Run Time Environment JD Joint DetectionJNDI Java Naming Directory InterfaceJP Joint PredistortionJPEG Joint Photographic Experts GroupJTAPI Java Telephony ApplicationProgramming InterfaceJVM Java™ Virtual MachineKk Windows sizeK Constraint length of the convolutionalcodeUSIM Individual keykbps kilo-bits per secondKc Ciphering keyKi Individual subscriber authenticationkeyKSI Key Set Identifierksps kilo-symbols per secondLL1 Layer 1 (physical layer)L2 Layer 2 (data link layer)L2ML Layer 2 Management LinkL2R Layer 2 RelayL2R BOP L2R Bit Orientated ProtocolL2R COP L2R Character Orientated Protocol L3 Layer 3 (network layer)LA Location AreaLAC Link Access ControlLocation Area CodeLAI Location Area IdentityLAN Local Area NetworkLAPB Link Access Protocol Balanced LAPDm Link Access Protocol on the DmchannelLATA Local Access and Transport Area LAU Location Area UpdateLB Load BalancingLCD Low Constrained DelayLCG Logical Channel GroupLCN Local Communication Network LCP Link Control ProtocolLCR Low Chip RateLCS Location ServicesLCSC LCS ClientLCSS LCS ServerLE Local ExchangeLEN LENgthLI Language IndicationLength IndicatorLine IdentityLIPA Local IP AccessLLC Logical Link ControlLow Layer CompatibilityLm Traffic channel with capacity lowerthan a BmLMSI Local Mobile Station Identity LMU Location Measurement UnitLN Logical NameLNA Low Noise AmplifierLND Last Number DialledLNS L2TP Network ServerLPLMN Local PLMNLPP LTE Positioning ProtocolLPPa LTE Positioning Protocol Annex LR Location RegisterLocation RegistrationLSA Localised Service AreaLSB Least Significant BitLSTR Listener SideTone RatingLTE Local Terminal EmulatorLong Term EvolutionLTZ Local Time ZoneLU Local UnitsLocation UpdateLV Length and ValueMM MandatoryM MandatoryMA Mobile AllocationMultiple AccessMAC Medium Access Control (protocollayering context)Message authentication code(encryption context)MAC-A MAC used for authentication and keyagreement (TSG T WG3 context) MAC-I MAC used for data integrity ofsignalling messages (TSG T WG3context)MACN Mobile Allocation Channel Number MAF Mobile Additional FunctionMAH Mobile Access Huntingsupplementary serviceMAHO Mobile Assisted HandoverMAI Mobile Allocation IndexMAIO Mobile Allocation Index OffsetMAP Mobile Application PartMBMS Multimedia Broadcast and MulticastServiceMBSFNMultimedia Broadcast multicastservice Single Frequency Network MCC Mobile Country CodeMCCH Multicast Control ChannelMCE Multi-cell/multicast CoordinationEntityMCH Multicast channelMCI Malicious Call Identificationsupplementary serviceMCML Multi-Class Multi-Link PPPMcps Mega-chips per secondMCS Modulation and Coding SchemeMCU Media Control UnitMD Mediation DeviceMDL (mobile) Management (entity) - DataLink (layer)MDS Multimedia Distribution Service MDT Minimization of Drive TestsME Maintenance EntityMobile EquipmentMEF Maintenance Entity Function MEHO Mobile evaluated handoverMER Message Error RatioMExE Mobile Execution EnvironmentMF Master FileMultiFrameMGCF Media Gateway Control Function MGCP Media Gateway Control PartMGT Mobile Global TitleMGW Media GateWayMHEG Multimedia and HypermediaInformation Coding Expert Group MHS Message Handling SystemMIB Management Information BaseMaster Information BlockMIC Mobile Interface ControllerMIM Management Information Model MIMO Multiple Input Multiple OutputMIP Mobile IPMIPS Million Instructions Per Second MLC Mobile Location CentreMM Man MachineMobility ManagementMultimediaMME Mobile Management EntityMMI Man Machine InterfaceMNC Mobile Network CodeMNP Mobile Number PortabilityMO Mobile OriginatedMO-LR Mobile Originating Location Request MO-SMS Mobile Originated Short MessageServiceMOHO Mobile Originated HandoverMOS Mean Opinion ScoreMoU Memorandum of UnderstandingMP Multi-link PPPMPEG Moving Pictures Experts Group MPH (mobile) Management (entity) -PHysical (layer) [primitive]MPTY MultiParTYMRF Media Resource FunctionMRP Mouth Reference PointMS Mobile StationMSA MCH Subframe AllocationMSB Most Significant BitMSC Mobile Switching CentreMSCM Mobile Station Class MarkMSCU Mobile Station Control UnitMSD Maximum Sensitivity DegradationMSE MExE Service EnvironmentMSID Mobile Station IdentifierMSD Maximum Sensitivity DegradationMSI MCH Scheduling InformationMSIN Mobile Station Identification Number MSISDN Mobile Subscriber ISDN NumberMSP Multiple Subscriber ProfileMSR Multi-Standard RadioMSRN Mobile Station Roaming NumberMT Mobile TerminatedMobile TerminationMTCH Multicast Traffic ChannelMT-LR Mobile Terminating Location Request MT-SMS Mobile Terminated Short MessageServiceMTM Mobile-To-Mobile (call)MTP Message Transfer PartMTP3-B Message Transfer Part level 3MTU Maximum Transfer UnitMU Mark UpMUI Mobile User IdentifierMUMS Multi User Mobile StationMVNO Mobile Virtual Network OperatorNNACC Network Assisted Cell ChangeNACK Negative AcknowledgementNAD Node Address byteNAI Network Access IdentifierNAS Non-Access StratumNBAP Node B Application PartNB Normal BurstNCELL Neighbouring (of current serving) Cell NBAP Node B Application PartNBIN A parameter in the hopping sequence NCC Network (PLMN) Colour CodeNCH Notification CHannelNCK Network Control KeyNCP Network Control ProtocolNDC National Destination CodeNDUB Network Determined User BusyNE Network ElementNEF Network Element FunctionNEHO Network evaluated handoverNET NETworkNorme Europeenne deTélécommunicationsNEV NEVerNF Network FunctionNI-LR Network Induced Location Request NIC Network Independent Clocking NITZ Network Identity and Time Zone NM Network ManagerNMC Network Management CentreNMR Network Measurement Results NMO Network Mode of OperationNMS Network Management Subsystem NMSI National Mobile Station Identifier NNI Network-Node InterfaceNO Network OperatorNP Network PerformanceNPA Numbering Plan AreaNPI Numbering Plan IdentifierNRI Network Resource IdentifierNRM Network Resource ModelNRT Non-Real TimeNSAP Network Service Access Point NSAPI Network Service Access PointIdentifierNSCK Network Subset Control Key NSDU Network service data unitNSS Network Sub SystemNt Notification (SAP)NT Network TerminationNon TransparentNTAAB New Type Approval Advisory Board NTDD Narrow-band Time DivisionDuplexingNUA Network User AccessNUI National User / USIM IdentifierNetwork User IdentificationNUP National User Part (SS7)NW NetworkOO OptionalO&M Operations & MaintenanceOA Outgoing Access (CUG SS)OACSU Off-Air-Call-Set-UpOCB Outgoing Calls Barred within theCUGOCCCH ODMA Common Control ChannelOCF Open Card FrameworkOCI Outgoing Call InformationOCNG OFDMA Channel Noise GeneratorOCNS Orthogonal Channel Noise Simulator OCT Outgoing Call TimerOD Optional for operators to implementfor their aimODB Operator Determined BarringODCCH ODMA Dedicated Control Channel ODCH ODMA Dedicated ChannelOLR Overall Loudness RatingODMA Opportunity Driven Multiple Access ODTCH ODMA Dedicated Traffic ChannelOID Object IdentifierOFDM Orthogonal Frequency DivisionMultiplexOrthogonal Frequency DivisionMultiplexingOFDMA Orthogonal Frequency DivisionMultiple AccessOFM Operational Feature MonitorOMC Operation and Maintenance CentreOML Operations and Maintenance LinkOOB Out-of-bandOPLMN Operator Controlled PLMN (SelectorList)OR Optimal RouteingORACH ODMA Random Access CHannelORLCF Optimal Routeing for Late CallForwardingOS Operations SystemOSA Open Service AccessOSI Open System InterconnectionOSI RM OSI Reference ModelOSP Octet Stream Protocol。

ACK AcknowledgementACLR Adjacent Channel Leakage RatioAM Acknowledge ModeAMBR Aggregate Maximu m Bit RateANR Automatic Neighbour RelationARQ Automatic Repeat RequestAS Access StratumBCCH Broadcast Control ChannelBCH Broadcast ChannelBSR Buffer Status ReportsC/I Carrier-to-Interference Power Ratio CAZAC Constant Amplitude Zero Auto-Correlation CMAS Commercia l Mobile Alert ServiceCMC Connection Mobility ControlCP Cyclic PrefixC-plane Control PlaneC-RNTI Cell RNTICQI Channel Quality IndicatorCRC Cyclic Redundancy CheckCSG Closed Subscriber GroupDCCH Dedicated Control ChannelDL DownlinkDFTS DFT Spread OFDMDRB Data Radio BearerDRX Discontinuous ReceptionDTCH Dedicated Traffic ChannelDTX Discontinuous TransmissionDwPTS Downlink Pilot Time SlotECGI E-UTRAN Cell Global IdentifierECM EPS Connection ManagementEMM EPS Mobility ManagementeNB E-UTRAN NodeBEPC Evolved Packet CoreEPS Evolved Packet SystemE-RAB E-UTRAN Radio Access BearerETWS Earthquake and Tsunami Warning SystemE-UTRA Evolved UTRAE-UTRAN Evolved UTRANFDD Frequency Div ision DuplexFDM Frequency Div ision MultiplexingGERAN GSM EDGE Radio Access NetworkGNSS Global Navigation Satellite SystemGSM Global System for Mobile communication GBR Guaranteed Bit RateGP Guard PeriodHARQ Hybrid ARQHO HandoverHRPD High Rate Packet DataHSDPA High Speed Downlink Packet AccessICIC Inter-Cell Interference CoordinationIP Internet ProtocolLB Load BalancingLCR Low Chip RateLTE Long Term EvolutionMAC Medium Access ControlMBMS Multimedia Broadcast Multicast ServiceMBR Maximu m Bit RateMBSFN Multimedia Broadcast multicast service Single Frequency Network MCCH Multicast Control ChannelMCE Multi-cell/mu lticast Coordination EntityMCH Multicast ChannelMCS Modulation and Coding SchemeMIB Master Information BlockMIMO Multiple Input Multiple OutputMME Mobility Management EntityMTCH Multicast Traffic ChannelMSAP MCH Subframe Allocation PatternNACK Negative AcknowledgementNAS Non-Access StratumNCC Next Hop Chain ing CounterNH Next Hop keyNNSF NAS Node Selection FunctionNR Neighbour cell RelationNRT Neighbour Relation TableOFDM Orthogonal Frequency Div ision MultiplexingOFDMA Orthogonal Frequency Div ision Multiple AccessP-GW PDN GatewayP-RNTI Paging RNTIPA Power AmplifierPAPR Peak-to-Average Power RatioPBCH Physical Broadcast CHannelPBR Prioritised Bit RatePCCH Paging Control ChannelPCFICH Physical Control Format Indicator CHannelPCH Paging ChannelPCI Physical Cell IdentifierPDCCH Physical Downlin k Control CHannelPDSCH Physical Downlink Shared CHannelPDCP Packet Data Convergence ProtocolPDU Protocol Data UnitPHICH Physical Hybrid ARQ Indicator CHannelPHY Physical layerPLMN Public Land Mobile NetworkPMCH Physical Multicast CHannelPRACH Physical Random Access CHannelPRB Physical Resource BlockPSC Packet SchedulingPUCCH Physical Uplin k Control CHannelPUSCH Physical Uplink Shared CHannelPWS Public Warning SystemQAM Quadrature Amplitude ModulationQCI QoS Class IdentifierQoS Quality of ServiceRA-RNTI Random Access RNTIRAC Radio Admission ControlRACH Random Access ChannelRAT Radio Access TechnologyRB Radio BearerRBC Radio Bearer ControlRBG Radio Bearer GroupRF Radio FrequencyRIM RAN Information ManagementRLC Radio Link ControlRNC Radio Network ControllerRNL Radio Network LayerRNTI Radio Network Temporary IdentifierROHC Robust Header CompressionRRC Radio Resource ControlRRM Radio Resource ManagementRU Resource UnitS-GW Serving GatewayS1-MME S1 for the control planeSI System InformationSIB System Information BlockSI-RNTI System Information RNTIS1-U S1 for the user planeSAE System Architecture EvolutionSAP Service Access PointSC-FDMA Single Carrier – Frequency Div ision Multiple Access SCH Synchronization ChannelSDF Service Data FlowSDMA Spatial Div ision Multiple AccessSDU Service Data UnitSeGW Security GatewaySFN System Frame NumberSPID Subscriber Profile ID for RAT/Frequency Priority SR Scheduling RequestSRB Signalling Radio BearerSU Scheduling UnitTA Tracking AreaTB Transport BlockTCP Transmission Control ProtocolTDD Time Div ision DuplexTFT Traffic Flow TemplateTM Transparent ModeTNL Transport Network LayerTTI Transmission Time IntervalUE User Equipmen tUL UplinkUM Un-acknowledge ModeUMTS Universal Mobile Telecommunication SystemU-plane User planeUTRA Universal Terrestrial Radio AccessUTRAN Universal Terrestrial Radio Access Network UpPTS Uplink Pilot Time SlotVRB Virtual Resource BlockX2-C X2-Control planeX2-U X2-User plane。