1. APN(Access Point Name):接入点 ANR(Automatic Neighbor Relation):自动化邻区关系 BBU(Baseband Unit):基带处理单元 BG(Border Gateway):边界网关 BSC(Base Station Controller):基站控制器 RRU(Remote Connection Control):远端射频单元 CMN(Call Mediation Node):呼叫协调节点,负责传递MSS(MSC Server)之间的呼叫控制信令,以及对被叫号码分析 CSFB(Circuit Switch Fall Back):电路域回落 DRA(Diameter Relay Agent):Diameter 信令转接代理 EPC(Evolved Packet Core):演进的分组核心网 ENUM(E.164 Number URI Mapping):电话号码映射机制 eSRVCC(Enhanced Single Radio Voice Call Continuity):增强的单待语音呼叫连续性 IN(Intelligent Network):智能网 P-CSCF(Proxy-Call Session Control Function):代理呼叫会话控制功能 PSI(Public Service Identities):公共业务标识,PSI 可以直接对AS 进行解析 GSM(Global System for Mobile Communication):全球移动通信系统 GMSC(GateWay Mobile Switching Center):网关移动交换中心 HLR(Home Location Register):归属位置寄存器 HSS(Home Subscriber Server):归属签约用户服务器 IMPU(IMS Public User Identities):IMS 公共用户标识 IMPI(IMS Private User Identities):私有用户标识,相当于GSM 中的IMSI; SIP URI 与 TEL URI; IMS(IP Multinational Subsystem):IP 多媒体子系统 IMS-ALG(Application Layer Gateway):IMS 应用层网关 TrGW(Transition Gateway):转换网关 IMSI(International Mobile Subscriber Identification Number):国际移动用户识别码,GSM 中的私有用户标识 IPX (IP exchange):IP 转接 LTE(long term evolution):长期演进 MAR(Multimedia-Auth-Request):多媒体鉴权请求 MAA(Multimedia-Auth-Answer):多媒体鉴权应答 MBSFN(multimedia broadcast multicast service single frequency network):MBMS 单频网 MGCF:媒体网关控制功能 MIMO(multi input multi output):多输入输出 MME(Mobility Management Entity):移动管理 MTP(Media Transfer Protocol):媒体传输协议 SCTP(Stream Control Transmission Protocol):流控传输协议...