增强的CELL_FACH技术研究  

Research on Enhanced CELL-FACH

作　　者：贺琳[1] 张香云[1] 李轶群[1] 

机构地区：[1]中国联通网络技术研究院,北京100048

出　　处：《邮电设计技术》2017年第2期51-54,共4页Designing Techniques of Posts and Telecommunications

摘　　要：随着微博、微信、网页浏览等小数据应用的普及,由于频繁的状态转换所引发的WCDMA网络信令风暴问题越来越严重,为了降低信令风暴问题对网络信令负荷的影响,3GPP在R7/R8版本引入了增强的CELL_FACH技术,以增强CELL_FACH状态的数据传输能力。通过对增强CELL_FACH技术进行详细的研究和分析,阐述了该技术的基本原理及其对网络和终端的影响,并在此基础上对该技术的性能进行分析和评估,以期为运营商技术选择提供依据。With the popularity of small data applications,such as blog,wechat,web browsing and so on,which introduce relatively frequent but small packets to be transmitted between UE and server 3GPP Rel-7/Rel-8 introduce enhanced CELL-FACH,in order to improve the uplink/downlink common channel RACH/FACH can be summarized as ease of initiating the data transmission and frequent state transition of many small packet applications. The technology of enhanced CELL-FACH will be analyzed thoroughly including basic principle,impacts on specifications/network equipments/terminal devices,in addition,it focus on the performance test of this technology in order to provide some useful reference to operators.

关 键 词：信令风暴 CELL_FACH 状态转换 时延 

分 类 号：TN929.5[电子电信—通信与信息系统]