Method and apparatus for controlling the quality of service...

Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network

Reexamination Certificate

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C370S414000, C370S493000

Reexamination Certificate

active

07545745

ABSTRACT:
A terminal adapter for guaranteeing the quality of service of both voice and data packets is disclosed. Such quality is ensured by inserting gaps between successive data packets in a stream of multiplexed data and/or voice packets. A gap after a particular data packet is proportional to the size of that particular data packet. In this way, bandwidth is preserved for any voice packets that may have arrived during the transfer of the data packet as well as for any voice packets that arrive during the gap. The unconstrained upstream data bandwidth and the bandwidth used by voice calls may each be estimated by taking a plurality of instantaneous measurements of the available bandwidth and/or taking individual direct measurements. The size of data packets may be limited to a maximum size in order to ensure that time-sensitive voice packets experience only an acceptable delay in queue for transmission.

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U.S. Appl. No. 10/873,579, “Establishing Traffic Priorities in a Voice Over IP Network”, filed Jun. 22, 2004.

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