摘要
结合3GPP的E-UTRAN二层技术规范和二层商用协议栈架构,系统研究了二层协议栈整体分层布局和各层功能划分。从横向对二层协议的分组数据汇聚协议(PDCP)、无线链路控制(RLC)和媒质接入控制(MAC)3个子层的服务和功能进行详细介绍,然后从纵向对二层协议上行和下行数据流处理流程、控制面和业务面数据分类及逻辑信道到传输信道的映射关系等方面分别介绍,给出了二层协议栈软件的主要数据结构和接口函数的程序代码。
This paper studies the whole hierarchical layout and function division of L2 protocol stack based on the framework of 3GPP E-UTRAN 3GPP L2 specification and commercial 12 protocol stack framework. The service and fimction of such three sublayers as of L2 protocol as PDCP, RLC and MAC are introduced in detail. The uplmk and downlink data stream processing flow, control plane and service plane data classification, mapping relationship from logic channel to transmission channel of L2 protocol are described in detail. Finally, the main data structure of L2 protocol stack and program code of interface fucntion are introduced.
出处
《计算机与网络》
2017年第5期71-74,共4页
Computer & Network
