小区切换中随机接入过程的研究与验证  

Research on and verification of random access procedure in cell handovers

作　　者：李小文[1] 皮定杰 

机构地区：[1]重庆邮电大学重庆市移动通信技术重点实验室,重庆400065

出　　处：《光通信研究》2015年第4期72-75,共4页Study on Optical Communications

基　　金：国家科技重大专项基金资助项目(2012ZX03001-009-004;2011ZX03001-003-01)

摘　　要：介绍了TD-LTE(时分-长期演进)系统所规范的小区切换过程,并重点研究了切换执行过程中的随机接入过程。结合TD-LTE协议一致性测试的特点和实际开发经验,通过执行无线资源管理异频切换测试例,对测试仿真图进行了分析,最后从仿真数据可以看到终端按源小区的前导配置向目标小区发起随机接入,有效验证了切换中的随机接入过程的协议一致性。This paper introduces the cell handover procedure specified in the TD-LTE (TD-SCDMA Long Term Evolution)sys-tem,and focuses on the random access procedure in handover execution.In line with the features of the TD-LTE protocol con-formance test and the practical development experience,this paper analyzes the handover test simulation diagrams by perform-ing the Radio Resource Management (RRM)different frequency handover test cases and can see from the simulation data the random access initiated by the terminal to the target cell according to the preamble configuration of the source cell,effectively verifying the protocol conformance of the random access procedure in the handover.

关 键 词：时分-长期演进 小区切换 随机接入 无线资源管理 测试例 

分 类 号：TN929.5[电子电信—通信与信息系统]