XXXX - XX - XX实施 ICS 33.060 M36 中 华 人 民 共 和 国 通 信 行 业 标 准 YD/T ××××—×××× YD/T 基于LTE技术的宽带集群通信（B-TrunC）系统 （第二阶段）接口技术要求 终端到集群核心网接 口 Technical requirements for interface between UE and trunking core network of LTE based Broadband Trunking Communication (B-TrunC) system (Phase 2) (报批稿) ××××-××-××发布 中华人民共和国工业和信息化部 发 布YDYD/T XXXX-XXXX I目 次 前言 ................................................................................. IV 1 范围 ................................................................................. 1 2 规范性引用文件 ....................................................................... 1 3 术语、定义和缩略语 ................................................................... 1 3.1 术语和定义 ....................................................................... 1 3.2 缩略语 ........................................................................... 1 4 接口模型 ............................................................................. 2 4.1 NAS架构 ......................................................................... 2 4.2 接口协议栈 ....................................................................... 3 5 TSM状态机 ........................................................................... 3 5.1 注册状态机 ....................................................................... 3 5.2 全双工单呼呼叫状态机 ............................................................. 6 5.3 半双工单呼呼叫状态机 ............................................................ 10 5.4 组呼呼叫状态机 .................................................................. 12 5.5 话权状态机 ...................................................................... 15 5.6 多媒体集群业务状态机 ............................................................ 17 6 EMM集群增强 ........................................................................ 18 6.1 EMM过程 ........................................................................ 18 6.2 EMM消息 ........................................................................ 19 6.3 EMM信息单元 .................................................................... 22 7 TSM过程 ............................................................................ 24 7.1 注册和注销 ...................................................................... 24 7.2 全双工单呼 ...................................................................... 27 7.3 半双工单呼 -无应答 ............................................................... 32 7.4 语音组呼和可视组呼 .............................................................. 34 7.5 话权管理 ........................................................................ 37 7.6 视频源指示 ...................................................................... 41 7.7 上行直传 ........................................................................ 41 7.8 下行直传 ........................................................................ 41 7.9 组信息更新 ...................................................................... 42 7.10 遥毙遥晕复活 ................................................................... 43 7.11 呼叫过程中改变媒体 ............................................................. 43 8 TSM信令消息 ........................................................................ 45 8.1 概述 ............................................................................ 45 8.2 TRUNKING REGISTER REQUEST ....................................................... 45 8.3 TRUNKING REGISTER ACCEPT ........................................................ 46 8.4 TRUNKING REGISTER REJECT ........................................................ 47 8.5 TRUNKING REGISTER COMPLETE ...................................................... 48 YD/T XXXX-XXXX II8.6 TRUNKING DEREGISTER REQUEST ..................................................... 48 8.7 TRUNKING DEREGISTER ACCEPT ...................................................... 49 8.8 CALL REQUEST .................................................................... 50 8.9 CALL ACCEPT ...............................................................