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

A multi-path transmission and overlapping network technology, applied in the field of communication networks, can solve the problems of unable to meet the needs of multimedia communication and the increasingly high performance requirements of real-time media transmission, and achieve the goal of improving transmission efficiency and service quality, and efficient multi-path transmission Effect

Active Publication Date: 2012-07-04
NORTHEASTERN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0035] The IMS client based on overlay network multipath transmission adopted in this embodiment is as follows: figure 2 As shown, the structure of the IMS client of the initiator of the present embodiment is the same as that of the IMS client of the receiver, and both include a multipath negotiation unit 501, a path selection and switching unit 502, a real-time media data division unit 503, and a media data buffering and reorganization unit 504.

[0036] Wherein, the multipath negotiation unit 501 is configured to complete the entire multipath negotiation establishment process. Confirm with the home domain network (CSCF) whether multipath transmission is supported, send a multipath transmission application to the IMS client of the called party in the session or receive a response to the application, and when a party has a new available netw...

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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...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/26H04L29/06H04L12/725
Inventor 雷为民陈枭张伟刘军戴明珠
Owner NORTHEASTERN UNIV
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