一种无线通信透传以太网数据分片重传方法  

Transparent Ethernet Data Fragment and Retransmission Method in Wireless Communication System

作　　者：闫乐乐 刘小勇 YAN Lele;LIU Xiaoyong(The 54th Research Institute of CETC,Shijiazhuang 050081,China;Military Representative Office of Rocket Force Armament Department Stationed in Langfang Region,Langfang 065000,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]火箭军装备部驻廊坊地区军事代表室,河北廊坊065000

出　　处：《通信电源技术》2022年第14期124-126,共3页Telecom Power Technology

摘　　要：在无线通信系统中以太网业务大都采用透明传输方式。由于无线信道误码率高,点到点的以太网数据包传输难免发生丢包,影响上层业务通信质量。无线信道底层协议帧长与以太网标准帧长不适配,依靠传输设备协议拆组包势必带来很大的协议开销。为解决上述问题,在业务层和信道接入层之间插入一种以太网数据分片重传装置,其工作在数据链路层,在有限带宽开销情况下可极大减小丢包率,提高业务传输质量。The Ethernet service data is transmitted in transparent mode in wireless communication system.Due to the high bit error rate of wireless channel,packet loss is inevitable in point-to-point Ethernet data transmission.Thus the communication quality of upper-layer services is severely affected.And because of the specific frame length supported by wireless channel underlying protocol does not match the standard frame length of Ethernet,depending on the protocol of transmission equipment to do the fragmentation and reassembly work will inevitably bring in large protocol overhead.To solve the above problems,an Ethernet data fragmentation and retransmission device is inserted between the service layer and channel access layer.It works at the data link layer of Ethernet and can greatly reduce the packet error rate and improve the service transmission quality under limited bandwidth cost.

关 键 词：以太网透传 分片和重组 重传 

分 类 号：TN92[电子电信—通信与信息系统]