ICS  35.100.30 CCS L79 YD 中华人民共和国通信行业标准 YD/Txxxx —XXXX 差异化保障业务技术要求 Technical Specification of Differentiated Network Guarantee Service （报批稿） XXXX - XX - XX发布 XXXX - XX - XX实施 中华人民共和国工业和信息化部   发 布 YD/T XXXX—XXXX I目  次 前  言 ................................................................................ 1 差异化保障业务技术要求 .................................................................. 1 1 范围 ................................................................................. 1 2 规范性引用文件 ........................................................................ 1 3 术语和定义 ............................................................................ 1 3.1 能力开放 Capability Exposure ........................................................ 1 3.2 业务服务器 Application Function ...................................................... 1 3.3 应用接入控制 Application Access Control .............................................. 1 4 缩略语 ................................................................................ 2 5 业务综述 .............................................................................. 3 5.1 业务定义 .......................................................................... 3 5.2 业务功能 .......................................................................... 3 5.3 应用场景 .......................................................................... 3 6 业务特征 .............................................................................. 4 6.1 QoS资源申请 ...................................................................... 4 6.2 QoS资源修改 ...................................................................... 4 6.3 QoS资源删除 ...................................................................... 4 7 业务流程 .............................................................................. 4 7.1 QoS资源申请流程 .................................................................. 4 7.2 QoS资源修改流程 .................................................................. 5 7.3 QoS资源删除流程 .................................................................. 6 8 系统架构 .............................................................................. 6 8.1 主要功能实体 ...................................................................... 7 8.1.1 AF ........................................................................... 7 8.1.2 AAC ......................................................................... 8 8.1.3 PCRF ......................................................................... 9 8.1.4 SPR .......................................................................... 9 8.1.5 OCS/OFCS .................................................................... 9 8.1.6 DRA ......................................................................... 9 8.1.7 PCEF ........................................................................ 11 8.1.8 BBERF ...................................................................... 11 8.2 接口描述 ......................................................................... 11 8.2.1 Rx’接口 ...................................................................... 11 8.2.2 Rx接口 ...................................................................... 11 YD/T XXXX—XXXX I8.2.3 Gx接口 ...................................................................... 12 9 业务对网络的要求 ..................................................................... 12 9.1 差异化 QoS机制要求 .............................................................. 12 9.1.1 E2E QoS机制 ................................................................. 12 9.1.2 网络状态信息上报 ............................................................. 13 9.2 路由要求 ......................................................................... 13 9.3 计费要求 ......................................................................... 14 9.4 会话管理 ......................................................................... 14 YD/T XXXX—XXXX II前  言 本文件按照 GB/T 1.1-2020《标准