Method and apparatus for network-based admission control using path-coupled quality of service signaling
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United States of America Patent
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Mar 10, 2009
Grant Date -
Jan 11, 2007
app pub date -
Jul 6, 2005
filing date -
Jul 6, 2005
priority date (Note) -
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Abstract
A Resource ReSerVation Protocol (RSVP) proxy is used in combination with a signaling proxy to provide improved admission control, Quality of Service (QoS) reservation, and media path routing. This avoids entangling call signaling with media plane functions as required with Session Border Controllers (SBCs). A QoS access network control scheme, such as Packet Cable Multi-Media (PCMM) and/or Dynamic Quality of Service (DQoS), is conventionally used to set up QoS and other flow states on an access network. However, the gate parameters established during this access operation are also provided to an RSVP proxy in an edge router. The gate parameters trigger the RSVP proxy to attempt to establish a QoS reservation over the packet network toward a media flow destination. If admission control for the QoS reservation is successful, the edge router permits the signaling proxy to complete the media call.
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