3GPP 如何查询及常用规范列表！（下载方法）

wangl408

3GPP规范的文件很多，查阅规范时，如何才能够快速找到相关的内容？从3GPP的接口和协议栈的结构入手，可以让我们在遇到问题，能够快速找到相关的规范。总体的原则是按照分接口、分层、分功能方式进行查询。首先要分清楚出现问题时是在哪个接口的哪一层出现了问题，这样再顺藤摸瓜的方式去查阅规范。3GPP规范的文件组织也是以这样的方式来组织的。
举个例子，如手机在ATTACH的过程中出现了问题，那么我们就查看信令流程是在与MME交互的过程中出现了问题还是在与ENB交互的过程中出现了问题，如果是遇MME交互的过程中出现了问题，那么就需要查阅手机与MME交互的NAS层流程，对应的规范就是24.301。如果是遇ENB交互的过程中出现了问题，那么假如是RRC层交互过程中出现了问题，那么就需要查阅36.331。
打开某个协议后，如果是要查询某个流程的信令交互过程描述，找到相应的流程描述章节，查阅相关内容即可。如果是针对某条信令中携带的信元查阅，一般在协议的针对特定信令的信元构成中查询。
下表列出了我们日常工作中经常会用到的规范列表，底色标黄的是最经常用到的。
Number        Title        说明
23.003        Numbering, addressing and identification        　
23.203        Policy and charging control architecture        策略和计费相关协议
23.216        Single Radio Voice Call Continuity (SRVCC); Stage 2        SRVCC协议
23.272        Circuit Switched (CS) fallback in Evolved Packet System (EPS); Stage 2        CSFB相关的协议
23.401        General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access        通用流程的描述
24.008        Mobile radio interface Layer 3 specification; Core network protocols; Stage 3        2/3G网络UE与核心网交互的NAS层协议
24.301        Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3        UE与MME交互的NAS层协议
29.118        Mobility Management Entity (MME) - Visitor Location Register (VLR) SGs interface specification        SGs接口协议
33.401        3GPP System Architecture Evolution (SAE); Security architecture        安全架构相关的协议
36.201        Evolved Universal Terrestrial Radio Access (E-UTRA); Long Term Evolution (LTE) physical layer; General description        LTE-UU 物理层规范描述
36.211        Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation       
36.212        Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel coding       
36.213        Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures       
36.214        Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer - Measurements       
36.302        Evolved Universal Terrestrial Radio Access (E-UTRA); Services provided by the physical layer       
36.300        Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2        E-UTRAN总体描述
36.304        Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) procedures in idle mode        UE空闲模式行为
36.306        Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) radio access capabilities        UE无线接入能力
36.321        Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification        MAC层协议
36.322        Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Link Control (RLC) protocol specification        RLC层协议
36.323        Evolved Universal Terrestrial Radio Access (E-UTRA); Packet Data Convergence Protocol (PDCP) specification        PDCP层协议
36.331        Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification        RRC层协议
36.401        Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Architecture description        E-UTRAN结构描述
36.410        Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 layer 1 general aspects and principles        S1接口协议
36.411        Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 layer 1       
36.412        Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 signalling transport       
36.413        Evolved Universal Terrestrial Radio Access (E-UTRA) ; S1 Application Protocol (S1AP)       
36.414        Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 data transport       
36.420        Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 general aspects and principles        X2口协议
36.421        Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 layer 1       
36.422        Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 signalling transport       
36.423        Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 Application Protocol (X2AP)       
36.424        Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 data transport