LTE系统在ISM频段快速传输的方法  

A method of rapid transmission on ISM band for LTE system

作　　者：卫海燕[1,2] 胡艳军[1] 周斌 徐景 

机构地区：[1]安徽大学电子信息工程学院,安徽合肥230601 [2]上海无线通信研究中心,上海200335

出　　处：《安徽大学学报（自然科学版）》2013年第2期75-80,共6页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(601071168);安徽省科技攻关计划科技强警专项资金资助项目(1101b0403030);安徽大学"211工程"学术创新团队基金资助项目

摘　　要：针对传统LTE(long term evolution)系统开始传输前需要获得相关信息的周期过长问题,提出LTE在占用ISM(industrial scientific medical)频段时的快速传输方法.该方法对MAC(media access control)层的RTS/CTS(request to send/clear to send)帧进行重新定义,使其帧控制字段和地址字段有空闲位来提前交换一些必需的信令,以达到在LTE系统短时间占用ISM频段的情况下,能够快速开始LTE传输.分析表明,该方法可缩短LTE系统开始数据传输的时延.The traditional LTE system took longer periods to obtain necessary information before transmission,so we proposed a rapid transmission method when LTE system was using the ISM bands.The method redefined RTS/CTS frame,it could have free bits in the frame control field and address field in order that LTE transmissions could start quickly when ISM bands were used in the short channel occupancy time.Analysis showed the rapid transmission method could reduce the delay of data transmission in the LTE system.

关 键 词：ISM频段 RTS帧 CTS帧 快速传输 信令 

分 类 号：TN914.1[电子电信—通信与信息系统]