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以GMR-1 3G为标准的MAC层协议,作为空中接口层二的一部分,MAC层位于RLC层和PHY之间,向RLC层提供逻辑信道,并使用PHY提供的信道向PHY发送和接收数据,主要实现信道映射、TBF资源管理、协议数据调度传送等功能,本文主要对MAC层的协议数据流进行分析和实现,其中包含的GMR-13G协议分析、MAC层和其他协议模块的消息原语交互、接口消息交互、MAC消息处理交互等。
As part of the air interface layer 2, the MAC layer, which is based on the GMR-1 3G standard, is located between the RLC layer and the PHY, provides logical channels to the RLC layer, and uses the channels provided by the PHY to send and receive data to the PHY, Mainly to achieve the functions of channel mapping, TBF resource management and protocol data scheduling and transmission. This paper mainly analyzes and realizes protocol data flow of MAC layer, including GMR-13G protocol analysis, message primitive interaction between MAC layer and other protocol modules , Interface message interaction, MAC message processing interaction.