Method and apparatus for optimal rate (PHY mode) control in wireless modems with variable bit rate (VBR) capability
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United States of America Patent
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Issued Date -
Jun 12, 2003
app pub date -
Dec 11, 2001
filing date -
Dec 11, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of rate control between a first and second communication terminal supporting a plurality of data rates, the method including the steps of: receiving, at the second terminal, a signal transmitted at one of the rates from the first terminal via a forward channel; and determining an optimal one of the rates to be used by the first terminal for a subsequent signal to be transmitted to the second terminal based upon a maximization of the throughput to the second terminal given a channel state of the forward channel and a cost associated with a change in rate. In some variations, the method may be performed in the downlink of a system including the first terminal and multiple remote terminals. In some variations, the method is performed at the remote terminals in a distributed fashion.
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