摘要
综合考虑了无线基站通信系统高可靠性、高吞吐量、数据链路相对稳定的应用需求,在数据链路层实现Q.922标准协议的基础上,提出了消息发送时的大包分片和滑窗机制,消息确认时的捎带确认机制。前者扩充了Q.922协议发送大消息包的应用场景,提高系统的稳定性和发送速率;后者提高可靠消息的确认效率。通过Wimax网络基站通信板进行优化性能测试,结果表明了优化的有效性和可行性。
To meet the application requirements of high reliability,high throughput,comparatively data link stabilization in wireless base-station communication system,based on the implementation of Q9.22 standard protocol in data link layer,the optimization approaches of large frame fragmentation and sliding window mechanism in sending frame situation,and piggybacking acknowledgement mechanism in frame acknowledgment situation are proposed.The former method is to extend the range of sending large frame by Q.922 protocol,improve the system stability and transmission rate,while the later method is to improve the acknowledgement efficiency of reliable frame.Finally,by the experiment based on communication boards in Wimax network base-station,the validity and feasibility of the optimization approaches are demonstrated.
出处
《计算机工程与设计》
CSCD
北大核心
2010年第13期2972-2975,共4页
Computer Engineering and Design
关键词
Q.922协议
数据链路层
基站通信
大包分片
捎带确认
Q.922 protocol
data link layer
base-station communication
large frame fragmentation
piggybacking acknowledgement
