LTE-Advanced中继系统基于资源共享的呼叫接纳控制方法  

Call Admission Control Based on Resource Sharing in LTE-Advanced Relay System

作　　者：赵季红[1,2] 韩海芳 曲桦[2] 

机构地区：[1]西安邮电大学通信与信息工程学院,西安710061 [2]西安交通大学电子与信息工程学院,西安710049

出　　处：《电信科学》2014年第2期60-64,共5页Telecommunications Science

基　　金：国家自然科学基金资助项目(No.61071126);国家科技重大专项"新一代宽带无线移动通信网"基金资助项目(No.2011ZX03005-004;No.2012ZX03001029-003;No.2012ZX03001008-003)

摘　　要：针对LTE-Advanced中继系统提出了一种基于资源共享的呼叫接纳控制方法。如果目标站点内新用户和切换用户共享资源已经被使用完,切换用户可以使用目标站点为切换用户预留的资源接入系统,而新用户则可以通过目标站点所在小区内的站点间资源共享接入系统。仿真结果表明,与LTE-Advanced系统固定带宽预留方案和LTE-Advanced中继系统固定带宽预留方案相比较,提出的算法能有效降低小区内新用户阻塞率和切换用户的掉话率,并且能够提高系统的资源利用率。A call admission control based on resource sharing in LTE-Advanced relay system was proposed.If the shared resources of the target site for new users and handover users are used up,handover users can use the reserved resources of the target site for handover users to access system,while new users can access system by resource sharing between the sites in the cell which the target site inside.Simulation results show that compared the proposed algorithm with LTE-Advanced system on fixed bandwidth reservation scheme and LTE-Advanced relay system on fixed bandwidth reservation scheme,the proposed algorithm can effectively reduce the blocking probability of new users and dropping probability of handover users in the cell,and can improve the system resource utilization.

关 键 词：LTE-ADVANCED 呼叫接纳控制 资源共享 中继 

分 类 号：TN915.2[电子电信—通信与信息系统]