东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (11): 1548-1553.DOI: 10.12068/j.issn.1005-3026.2015.11.007

• 信息与控制 • 上一篇    下一篇

支持媒体多径中继传输的IMS会话协商机制

张伟， 雷为民， 李广野， 关云冲   

  1. (东北大学 信息科学与工程学院， 辽宁 沈阳110819)
  • 收稿日期:2014-11-05 修回日期:2014-11-05 出版日期:2015-11-15 发布日期:2015-11-10
  • 通讯作者: 张伟
  • 作者简介:张伟(1980-)，女，山东济宁人，东北大学讲师，博士; 雷为民(1969-)，男，山西平遥人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(61401081).

A Session Negotiation Mechanism in IMS Supporting Relay-based Media Multipath Transport

ZHANG Wei， LEI Wei-min， LI Guang-ye， GUAN Yun-chong   

  1. School of Information Science & Engineering， Northeastern University， Shenyang 110819， China.
  • Received:2014-11-05 Revised:2014-11-05 Online:2015-11-15 Published:2015-11-10
  • Contact: ZHANG Wei
  • About author:-
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摘要： 针对IMS(IP multimedia subsystem)目前尚不支持媒体多径中继传输模式，提出一种支持媒体多径中继传输的IMS会话协商管控机制.将多径传输功能以一种业务形式引入至IMS系统，将基于应用层中继的多径传输框架MPTS-AR与IMS系统相结合，使得IMS网络侧能够对媒体传输进行多径管理.结果表明，所提方法不仅最大程度地重用IMS现有的网络架构，保护IMS系统的已有资金投入，提高方案可实施性；而且使得IMS网络侧有能力为用户提供差异化的媒体传输服务质量.

关键词: 多径传输, IP多媒体子系统, 会话协商, 应用层中继, 中继传输

Abstract: Due to IMS(IP multimedia subsystem) does not support media relay-based multipath transmission mode at present， a session negotiation mechanism in IMS supporting media relay-based multipath transport was presented. Multipath transmission function was introduced to IMS system in a form of service. The multipath transport framework based on application-layer relay was combined with IMS system seamlessly. The network side of IMS was enabled to manage media multipath transmission process. The proposed mechanism not only maximize the reuse of existing IMS network infrastructure to protect the early capital investment and improve the scheme’s practicability， but also enable the network side of IMS to have the ability to provide users with differentiated media transmission quality.

Key words: multipath transport, IP multimedia subsystem(IMS), session negotiation, application-layer relay, relay-based transport

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