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第1页共39页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共39页信令流程宝典（Ver.1）缩略语清单：Abis接口BTS到BSC之间的接口BTSBaseTranceiverSystem基站BSCBaseStationController基站控制器CDMACodeDivisionMutiAccess码分多址ECAMExtendedChannelAssignmentmessage扩展信道指配消息Ec/IoPilotenergyaccumulatedoveronePNchipperiod（Ec）tothetotalpowerspectraldesity（Io）inthereceivedbandwidth每码片的能量比上所处1.23M带宽内的总功率谱密度其中Io为有效信号+噪声在信号频带内的总功率Ec/IorEC是导频码片功率，IOr为基站前向发射总功率，它们之比表示导频功率占基站总的发射功率的百分比。EIBEraseIndicationBit擦除指示位ESCAMExtendedSupplementalChannelAssignmentMessage扩展补充信道指配消息FCHFundamentalChannel基本信道FERFrameErrorRatio误帧率FMRFrameProcessingBoard帧处理板FWTFCForwardTrifficChannel前向业务信道MSMobileStation移动台NUM_RSCCHNumberofReverseSupplementalCodechannel反向补充编码信道个数OMUOperationMaintenanceUnit操作维护PMRMPowerMeasurementReportMessage功率测量报告消息RCRadioconfiguration无线配置RxReceivedPower接收功率RVTFCReverseTrifficChannel反向业务信道SCHSupplementalChannel补充信道TxTransmitPower发射功率FFERForwardFrameErsureRate前向误帧率一.CDMA信令集合....................................................................................31.保密与识别.....................................................................................32.登记...........................................................................................43.前向链路.......................................................................................4第2页共39页第1页共39页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共39页4.前向链路.......................................................................................4二.系统消息概述和分类...............................................................................51.消息分类（六种必选）...........................................................................52.消息分类（七种可选）...........................................................................53.消息分类（业务态）.............................................................................6三.主叫流程及信令...................................................................................61.空闲态信令讲解及流程...........................................................................61.1.同步信道消息SyncChannelMeg.............................................................61.2.接入信道消息AccessParametersMeg.......................................................71.3.系统参数消息SystemParametersMeg........................................................81.4.邻区列表消息NeighborListMeg...........................................................101.5.CDMA信道列表消息CDMAChannelListMeg...................................................121.6.扩展系统参数消息ExtendedSystemParameterMeg...........................................132.业务态信令讲解及流程..........................................................................152.1.业务在线系统参数消息In-trafficSystemParameterMeg.....................................152.2.邻小区列表更新消息NeighborListUpdateMeg..............................................172.3.扩展邻小区列表更新消息extendedNeighborlistupdatemeg.................................173.主叫流程.........................................................................