一种基于CoMP的随机接入方案  

A Random Access Scheme Based on CoMP

作　　者：卢宪祺[1] 周文安[1] 朱超平[1] 宋俊德[1] 

机构地区：[1]北京邮电大学计算机科学与技术学院,北京100876

出　　处：《电讯技术》2012年第5期619-623,共5页Telecommunication Engineering

基　　金：国家重大科技专项项目(2009ZX03003-003-01);中兴产学研项目~~

摘　　要：提出了一种新的基于协作多点传输和接收(CoMP)技术的多发随机接入流程,并根据随机接入的目的和业务类型设计了接入优先级,在此基础上设计了一种新的随机接入方案,对不同类型的随机接入请求提供不同的接入机制,以保证边缘用户的接入性能和满足不同业务的QoS需求。仿真结果表明,与LTE标准随机接入方案相比,该方案对系统整体接入性能略有提高,且大大提高了边缘高优先级用户的接入性能。A new multiple random access process is proposed based on Coordinated Multi - point （CoMP） trans- mission and reception. And the access priority is designed according to the purpose of random access and the type of service. On this basis, a new random access scheme is discussed. This scheme provides different access mechanisms to different types of random access requests, and ensures the edge users＇ access perfonnances and the QoS requirements of different services. Simulation results show that, compared with the LTE standard random access program, the overall system access performances increase slightly, and the edge high - priority access performances increase greatly.

关 键 词：LTE-A 随机接入 COMP 接入优先级 退避算法 

分 类 号：TN92[电子电信—通信与信息系统]