WCDMA/GSM异系统切换中RAB信道转换优化研究  

Research of RAB channel switching with IRAT handover in WCDMA/GSM network

作　　者：刘月阳[1] 蔡凯[1] 

机构地区：[1]中国联通北京分公司,北京100038

出　　处：《电信工程技术与标准化》2011年第1期59-62,共4页Telecom Engineering Technics and Standardization

摘　　要：异系统切换是2/3G互操作优化的关键点,针对3G数据业务突出的特点,PS域的异系统切换优化更具挑战性。PS异系统切换时,UE在不同RAB信道和压缩模式间进行转换,要对相关参数进行缜密的优化,否则会严重影响异系统切换的效果和性能指标。本文基于PS异系统切换原理和信令流程,通过分析和统计,得出优化的合理结论,对实际优化工作具有指导性意义。IRAT handover is key point in 2/3G interaction optimizing.Packet data service is very important,therefore IRAT handover in PS domain is challenging.UE will switch between multi-RAB channels;also switch from idle mode to compressed mode in IRAT handover procedure.Parameter optimizing is very careful job;otherwise it will affect performance and effect of IRAT handover.This paper analyzes IRAT handover in 2/3G network based on fundamental and signaling procedure.From analysis we get a reasonable conclusion and guide the future optimizing work.

关 键 词：WCDMA GSM 异系统 RAB 

分 类 号：TN929.533[电子电信—通信与信息系统]