LTE-A异构网中分流承载技术的设计与实现  

Design and Implementation of Split Bearing Technique in Heterogeneous Networks Based on LTE-A

作　　者：方一鸣[1] 李小文[1] 张涵嫣[1] FANG Yi-ming LI Xiao-wen ZHANG Han-yan(Chongqing Key Lab of Mobile Communications Protocol, Chongqing University of Posts and Telecommunications, Chongqing 400065, Chin)

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：《无线电通信技术》2017年第1期89-93,共5页Radio Communications Technology

基　　金：国家科技重大专项资助项目(2012ZX03001024)

摘　　要：3GPP在LTE-A异构网络中提出了小小区增强策略的分流承载技术,即在MeNB(Master eNB)的覆盖范围内部署SeNB(Secondary eNB),二者共同组成E-UTRAN(Evolved Universal Terrestrial Radio Access Network)系统架构中的接入网,为UE(User Equipment)提供联合的数据传输。通过对分流承载技术的研究,提供了其应用场景,制定了接收实体的重排序规则,并为分流承载设计了建立与去建立流程图,最后用TTCN-3(Testing and Test Control Notation version 3)测试系统的终端无线资源管理(Radio Resource Management,RRM)一致性测试平台对流程设计进行了验证。3GPP has proposed split bearing technique in LTE-A heterogeneous networks for enhanced small cell,in which SeNB is deployed in the coverage of MeNB,and both of them form the access network in E-UTRAN system and support united data transmission for UE.Based on an analysis of split bearing, the scenarios of split bearing technique are provided and the reordering mechanism is designed for the receiving entity.Finally,the radio resource management （RRM） conformance testing platform based on terminal TTCN- 3 （Testing and Test Control Notation version 3） is used to test the process.

关 键 词：分流承载技术 双连接 重排序机制 一致性测试 

分 类 号：TN929.5[电子电信—通信与信息系统]