Overlay-network-multipath-transmission-based Internet protocol multimedia subsystem (IMS) client and media exchange method

Abstract

The invention discloses an overlay-network-multipath-transmission based Internet protocol multimedia subsystem (IMS) client and a media exchange method. The IMS client can perform multi-path real-time media transmission negotiation on the basis of an overlay network and establish a plurality of paths to transmit real-time media, and the paths can be switched according to a path quality monitoring result in a transmission process. The multi-path transmission of the real-time media can be realized by the IMS client, and real-time media network transmission performance in IMS communication can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of communication networks, in particular to an IMS client and a media exchange method based on overlapping network multipath transmission. Background technique [0002] Traditional network sessions have always used a single path selected before the session for data transmission, but with the continuous development of communication networks, there are more and more types of network access methods, and personal computers or mobile phones already have or can be expanded to have both More than two network connections, for example, a personal computer can choose multiple network service providers at the same time, and access the network through multiple network addresses; mobile phones have both WIFI and 3G Internet access conditions, which are used by both communication parties to transmit data through multiple paths at the same time Convenience provided. Many research organizations and scholars at home and abr...

AI Technical Summary

Problems solved by technology

Many research organizations and scholars at home and abroad have done a lot of work on the use of multi-path data transmission, but the current research is still in a blank stage for real-time media multi-path transmission, and with the development of Interactive Personality TV (Interactive Personality TV, IPTV) With the popularization of applications such as network audio and video conversations, real-time media has higher and higher requirements for transmission performance.

In the current IMS (IP Multimedia Subsystem, IMS, IP Multimedia Subsystem) architecture, IMS client media exchange still mainly uses the traditional routing and switching technology that only supports single-path transmission. Under the constraints of network transmission quality of service (Qos) , the existing network conditions cannot meet the ever-increasing demand for multimedia communications. In addition to the need for operators to continuously expand and update network infrastructure, there is an urgent need to study and improve media transmission mechanisms that improve network resource utilization efficiency.

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