Service switching method in 3G mobile communication system

Abstract

A method for switching service in the third generation of mobile communication system includes using MSCe to inform MGW to derive off IWF entity on old T and using new T to it take over when switch is occurred for ensuring to use one and the same IWF entity resource before and after switch in order not to interrupt service; enabling MSCe to inform MGW object and time transferred by IWF indirectly by changing variation of topology relation of new and old T to service opposite T; setting up a virtual T to be used as opposite T for QNC service.

Description

technical field [0001] The invention relates to the third-generation mobile communication technology, in particular to a service switching method in the third-generation mobile communication system. Background technique [0002] With the rapid development of communication technology, people's expectations and requirements for personal communication are getting higher and higher, so mobile operators need to pay special attention to aspects such as user interface and service quality that directly affect the effect of users using mobile services. The characteristics of the third generation (3rd Generation, referred to as "3G") mobile communication system, such as high bandwidth, multiple services, and high quality, have greatly attracted the mobile consumer market. To a certain extent, it restricts market expansion and affects the development of mobile operation affairs. [0003] During the evolution of the 3rd Generation Partnership Project 2 (3GPP2) system from the circuit-s...

AI Technical Summary

Problems solved by technology

The characteristics of the third generation (3rd Generation, referred to as "3G") mobile communication system, such as high bandwidth, multiple services, and high quality, have greatly attracted the mobile consumer market. Restrict market expansion to a certain extent and affect the development of mobile operations

However, when the handover occurs, the MGW deletes the original IWF and replaces it with a new IWF entity. The IWF needs to negotiate with the mobile station on the wireless side, resulting in the interruption of the original data communication. If handover occurs many times, the QNC service will be greatly reduced. The advantages

[0020] In practical application, the above scheme has the following problems: when the mobile station is handed over between cells, the service will inevitably be interrupted, especially for the QNC service, which will seriously reduce the service quality

[0021] The main reason for this situation is that when a handover occurs, a new T is added to replace the old T in the context, and new IWF resources are introduced, which requires renegotiation, resulting in service interruption and reduced service quality.

Images