LTE-TD双模终端切换过程的ERRC研究与实现  

RRC research and implementation of LTE in handover procedure of TD-LTE to TD-SCDMA dual-mode terminals

作　　者：彭大芹[1] 张文英[1] 邓江 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065 [2]重庆重邮信科通信技术有限公司,重庆400065

出　　处：《重庆邮电大学学报（自然科学版）》2012年第2期169-173,247,共6页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：重庆市科委科技功关项目(CSTC;2009AA2037)~~

摘　　要：从研究时分双工(time division duplex,TDD)模式的长期演进(long term evolution,LTE)技术(TD-LTE)和时分同步码分多址(time division-synchronous code division multiple access,TD-SCDMA)双模系统的必要性出发,对TD-SCDMA和TD-LTE的系统结构及LTE协议栈架构中的无线资源控制(radio resource control,RRC)子层进行了研究;通过对LTE系统间切换原理及LTE-TD系统间切换和测量过程的LTE侧RRC(称为ERRC)子层的研究,设计了ERRC模块的有限状态机和层间交互接口原语,以及LTE-TD的系统间切换过程;通过规范和描述语言(specifi-cation and description language,SDL)/树表结合表示法(tree and tabular combined notation,TTCN)。仿真测试验证平台验证了双模切换的ERRC的设计与实现符合第三代合作伙伴计划(3rd generation partnership project,3GPP)一致性协议规范。Based on the necessity of the TD-LTE/TD-SCDMA Dual-mode terminals research,the structure of TD-LTE and TD-SCDMA systems and LTE protocol are introduced.The finite state machine and interface of ERRC sub-layer,the handover procedure of TD-LTE to TD-SCDMA are designed through the research of the inter-RAT principle in LTE system and ERRC in handover and measure procedure of TD-LTE to TD-SCDMA.The design and implementation of ERRC is verified through the SDL/TTCN test and verification platform,and it meets the 3GPP protocol specifications.

关 键 词：LTE协议栈 TD-SCDMA 双模终端 系统间切换 无线资源控制协议 树表结合表示法 

分 类 号：TN929.5[电子电信—通信与信息系统]