ICS 33.060.99 M 36 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 空中接口 Technical requirement of Uu-T interface of LTE based Broadband Trunking Communication（B-TrunC） system (Phase 2) （报批稿） 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 .......................................................................................................................................................... III 1 范围 ................................................................................................................................................................. 1 2 规范性引用文件 .............................................................................................................................................. 1 3 缩略语 ............................................................................................................................................................. 1 4 物理层概述 ...................................................................................................................................................... 2 5 物理信道和调制 .............................................................................................................................................. 3 6 物理层复用和信道编码 ................................................................................................................................... 3 6.1 传输信道到物理信道的映射 ............................................................................................................................ 3 6.2 信道编码、复用和交织 .................................................................................................................................... 3 7 物理层过程 ...................................................................................................................................................... 4 7.1 UE接收物理下行共享信道过程 ........................................................................................................................ 4 7.2 CQI/PMI/RI 上报 ................................................................................................................................................. 5 7.3 ACK/NACK 上报 ................................................................................................................................................... 5 7.4 物理上行共享信道相关过程 ............................................................................................................................ 5 7.5 物理下行控制信道过程 .................................................................................................................................... 5 7.6 物理上行控制信道过程 .................................................................................................................................... 7 8 物理层测量 ...................................................................................................................................................... 7 9 层二 MAC协议 ................................................................................................................................................ 7 9.1 MAC结构 ............................................................................................................................................................ 7 9.2 信道和信道映射 ................................................................................................................................................ 7 9.3 MAC PDU设计 .................................................................................................................................................... 9 9.4 RNTI的取值和用途 .......................................................................................................................................... 10 9.5 DL-SCH数据传输的下行分配接收 .................................................................................................................. 11 9.6 TPCH接收 ......................................................................