Method for clear channel assessment optimization in a wireless local area network
AssigneeInterDigital Technology Corporation
InventorsChristopher Cave, Vincent Roy, Paul Marinier, Angelo Cuffaro
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Abstract
A method for optimizing clear channel assessment (CCA) parameters in a wireless local area network having an access point (AP) and at least one station begins by receiving a trigger condition. An upper bound and a lower bound for an energy detect threshold (EDT) parameter are determined. A value of the EDT parameter is calculated and is bound by the upper bound and the lower bound. Lastly, the EDT parameter is updated. The method can be performed at each station or at the AP, with the updated CCA parameters being signaled to each station associated with the AP.
Claims21
A method for optimizing clear channel assessment parameters comprising:
- receiving a trigger condition;
- determining an upper bound and a lower bound for an energy detection threshold (EDT) parameter in response to the trigger condition;
- calculating a value of the EDT parameter by adding a current value of the EDT parameter and a product of a step size value multiplied by a weighted sum of:
- a received packet error rate divided by a target maximum received packet error rate,
- a transmitted packet error rate divided by a target maximum transmitted packet error rate, and
- a deferral rate divided by a target maximum deferral rate;
- bounding the EDT parameter by the upper bound and the lower bound;
- and
- updating the EDT parameter.
A method for optimizing clear channel assessment parameters comprising:
- receiving a trigger condition;
- determining an upper bound and a lower bound for an energy detection threshold (EDT) parameter in response to the trigger condition;
- calculating a value of the EDT parameter, including calculating an EDT transmission value and an EDT reception value, wherein the EDT transmission value is calculated by adding a current value of the EDT transmission value and a product of a step size value multiplied by a weighted sum of:
- a deferral rate divided by a target maximum deferral rate, and
- a transmitted packet error rate divided by a target maximum transmitted packet error rate;
- bounding the EDT parameter by the upper bound and the lower bound;
- and
- updating the EDT parameter.
Dependencies are inferred from the claim text.