Patent ID: 7602723
Filing Date: 2009-10-13
Classification: H04L,H04W

Abstract:
1. A method for exchanging media streams between end peers in a network and for supporting an End-to-End Negotiation Protocol (E2ENP), comprising: pre-negotiating a plurality of QoS contracts before an establishment of a media stream; carrying on QoS correlation and time synchronization of multiple streams or of group of streams; negotiating the use of one of the pre-negotiated QoS contract, before or at the time of media stream establishment, and re-negotiating a QoS contract from among said pre-negotiated contracts, after detecting at least one of a QoS change or violation, wherein a Session Description Protocol Next Generation (SDPng) content is used as an input for the E2ENP that is derived from user profile information, and wherein the ones of the plurality of QoS contracts that are not supported by a network provider of the network or an access network of an end peer are indicated as spare contracts.