协作多点传输技术对LTE随机接入过程的影响  

The Impact of Coordinated Multi-point Transmission on LTE Random Access Procedure

作　　者：卢宪祺[1] 周文安[1] 

机构地区：[1]北京邮电大学,北京100876

出　　处：《北京联合大学学报》2011年第2期1-5,共5页Journal of Beijing Union University

基　　金：国家科技重大专项项目(2009ZX03003-003-01);中兴通讯产学研合作项目(2010ZTE01-01-4)

摘　　要：协作多点传输技术通过对多个小区进行联合调度和协作传输,降低小区间干扰,提高小区边缘用户的性能和扇区吞吐量。随机接入过程是移动通信系统中UE与网络建立连接、进行通信的首要过程,必将受到这种新的传输模式的影响。对其接入场景与接入流程、资源请求过程的资源分配问题、部分切换过程及新的接入方式进行探讨,提出这些过程在CoMP环境下的演进方向。Coordinated Multi-point Transmission technology can improve the performance of cell edge users and sector throughput through joint scheduling and cooperative transmission of several cells and reducing the inter-cell interference.Random access procedure is a very important procedure in the mobile communication system,which establishes a connection between UE and network.It will be affected by the new transmission mode.The scenes and process of access,the resource allocation problem in resource request stage,the handoff process in some cases,and a new access pattern are discussed here and the evolution trend of these processes in CoMP environment is put forward.

关 键 词：协作多点传输 随机接入过程 资源分配 切换 

分 类 号：TN914[电子电信—通信与信息系统]