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| Research on IMS Handover |
| Lv Xin-rong; Liao Jian-xin; Wang Chun; Zhu Xiao-min |
| State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China;EB Information Technology Co. Ltd., Beijing 100083, China |
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Abstract The multi-layers handover in communication based on IMS(IP Multimedia Subsystem)results in the long interruption time of application, which reduces the Quality of Service (QoS) of the system. The process of handover signaling in R6 adopts the handover between SGSNs when one MS moves from one network to another, which will lead to the bypass of the data among the networks and will aspect the efficient of the handover and add the network traffic. The process of handover is improved by a hander between GGSN. It can fast the handover process and reduce the end-to-end delay for the roaming MS and the traffic of the network.
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Received: 22 December 2005
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2007, Vol. 29 
