A service bearing method, communication terminal, control network element s-cscf and system

Abstract

Disclosed in an embodiment of the invention is a service carrying method, comprising: performing, by a communication terminal, and according to a service request, media negotiation with a communication peer in a first access network; performing, according to a media negotiation result, a first media resource reservation in the first access network; if a resource reserved in the first access network does not meet a target resource requirement, performing a second media resource reservation in a second access network; after transmitting, by the communication terminal, a first media resource reservation completion message to the communication peer, receiving, by the communication terminal, a second media resource reservation completion message transmitted by the communication peer upon completion of the media resource reservation; and establishing, by the communication terminal, a service connection with the communication peer, and carrying a media stream in the first access network and the second access network, respectively, according to a carrying method for the media stream corresponding to a target service indicated in the first media resource reservation completion message. Also provided in the embodiment of the invention are a communication terminal, a control element S-CSCF and a system capable of effectively sharing network load, increasing service quality, and improving user experience.

Description

technical field [0001] The present invention relates to an IP Multimedia Subsystem (IMS, IP Multimedia Subsystem), in particular to a service bearing method, a communication terminal, a control network element S-CSCF and a system. Background technique [0002] In today's rapid development of communication technology, IP technology and Internet applications across the link layer transmission medium are widely popularized, and a single voice communication mode has developed into a brand-new multimedia communication mode, which more and more meets people's needs for communication development. [0003] IMS (IP Multimedia Subsystem), as an IP Multimedia Subsystem defined in 3GPPR5 phase, is a brand-new multimedia service form. SIP, Session Initiation Protocol), as a service control protocol, utilizes the features of SIP to be simple, easy to expand, and convenient to combine media, and separates service control and bearer control to provide rich multimedia services. Diversified ...

AI Technical Summary

Problems solved by technology

However, for a single service, the quality of service Qos that can be provided by VoLTE or VoWiFi bearer is limited. If a single service is shared through VoLTE or VoWiFi access network, if the VoLTE or VoWiFi access network cannot meet the service requirements demand, then it will not be able to provide better Qos and reduce user experience

For example, when a current user needs to make a multi-party video call, VoLTE or VoWiFi needs to reserve resources for multiple audio streams and video streams. If a single VoLTE or VoWiFi cannot meet the business needs at this time, sufficient audio streams or video streams cannot be reserved. resources, it will not be able to provide better Qos to carry multi-party video calls, thus reducing the user experience

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