YD-T 4194-2023 5G终端基于NR的语音解决方案 VoNR 技术要求

ICS 33.060.99 CCS M36 中华人民共和国通信行业标准 YD/T XXXX—XXXX 5G终端基于NR的语音解决方案（VoNR）技术要求 Technical requirement for 5G User Equipment of voice over NR（VoNR） (报批稿) ××××-××-××发布 ××××-××-××实施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 术语、定义和缩略语 ................................................................... 4 3.1 术语和定义 ....................................................................... 4 3.2 缩略语 ........................................................................... 4 4 终端功能要求 ......................................................................... 5 4.1 基本要求 ......................................................................... 5 4.2 卡槽功能要求 ..................................................................... 6 4.3 无线功能要求 ..................................................................... 6 4.3.1 无线增强要求 ................................................................. 6 4.3.2 无线承载 ..................................................................... 6 4.3.3 5GC承载 QoS要求 ............................................................. 6 4.3.4 RoHC头压缩 .................................................................. 7 4.4 高层要求 ......................................................................... 7 4.4.1 PDU会话建立 ................................................................. 7 4.4.2 IP版本要求 .................................................................. 7 4.5 终端语音选择方案 ................................................................. 7 4.5.1 基本要求 ..................................................................... 7 4.5.2 开机注册过程 ................................................................. 7 4.5.3 语音呼叫时的方案选择 ......................................................... 8 4.6 IMS控制面要求 ................................................................... 8 4.6.1 P-CSCF发现 .................................................................. 8 4.6.2 IMS注册 ..................................................................... 8 4.6.3 IMS注销 ..................................................................... 9 4.6.4 IMS鉴权和安全 ............................................................... 9 4.6.5 IMS呼叫建立 ................................................................. 9 4.6.6 IMS呼叫释放 ................................................................ 10 4.7 IMS媒体面要求 .................................................................. 10 4.7.1 语音编解码 .................................................................. 10 4.7.2 视频编解码 .................................................................. 11 4.7.3 RTP描述和SDP考虑 .......................................................... 11 4.7.4 RTP数据传输 ................................................................ 11 4.7.5 RTCP用法 ................................................................... 11 4.7.6 有效负载格式方面 ............................................................ 12 4.7.7 DTMF事件 ................................................................... 12 4.7.8 早媒体功能 .................................................................. 12 4.8 移动性管理 ...................................................................... 12 5 业务功能要求 ........................................................................ 12 5.1 语音通话业务 .................................................................... 12 5.1.1 语音通话业务建立 ............................................................ 12 5.1.2 语音通话业务连续性 .......................................................... 12 5.2 视频通话业务 .................................................................... 13 YD/T XXXX—XXXX II5.2.1 视频通话业务建立 ............................................................ 13 5.2.2 视频通话业务连续性 ....................