Patent ID: 7653735
Filing Date: 2010-01-26
Classification: H04L

Abstract:
1. A method for exchanging media streams between peers of a network, the method comprising: pre-negotiating a common set of a plurality of indexed Quality-of-Service (QoS) contracts and terminal capabilities between peers, before streams are exchanged, wherein the pre-negotiating includes forwarding, from an initiator peer, indexed QoS contracts and terminal capabilities to at least one responder peer; generating, at the at least one responder peer, a common subset of said received indexed QoS contracts and its own QoS contracts and terminal capabilities; and forwarding, from the at least one responder peer, the common subset to the initiator peer; and negotiating, at the peers, QoS contracts on a per stream basis using the prenegotiated QoS contracts and terminal capabilities, at the time of stream establishment, wherein in case of a renegotiation during streaming, one of the peers sends the index of one of the indexed pre-negotiated QoS contracts and terminal capabilities to the other peers.