Enhanced distributed channel access parameter variation within restricted access window
First Claim
1. A wireless access point comprising:
- a medium access control (MAC) circuit configured to generate a first traffic indication map, wherein the first traffic indication map announces a restricted access window; and
a physical layer device configured totransmit a first beacon over a wireless medium, wherein the first beacon includes the first traffic indication map, wherein the restricted access window begins subsequent to transmission of the first beacon, and wherein the restricted access window ends prior to transmission of a second beacon, wherein the second beacon is transmitted subsequent to the first beacon with no intervening beacons,during the restricted access window, access the wireless medium using a first set of channel access parameters, andoutside of the restricted access window, access the wireless medium using a second set of channel access parameters, whereinthe second set of channel access parameters is different than the first set of channel access parameters,the second set of channel access parameters includes a plurality of channel access values respectively corresponding to a plurality of access categories,a first frame is associated with a first access category of the plurality of access categories, andthe first frame is transmitted after waiting for a period of time that is based on a channel access value of the plurality of channel access values corresponding to the first access category.
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Accused Products
Abstract
A wireless access point includes a medium access control circuit that generates a first traffic indication map announcing a restricted access window (RAW). A physical layer device transmits a first beacon, including the first traffic indication map, over a wireless medium. The RAW begins subsequent to the first beacon and ends prior to the next beacon. During the RAW, the physical layer device accesses the wireless medium using a first set of channel access parameters. Outside of the RAW, the physical layer device accesses the wireless medium using a second set of channel access parameters different than the first set. The second set includes channel access values respectively corresponding to access categories. A first frame, associated with a first access category, is transmitted after waiting for a period of time that is based on a channel access value corresponding to the first access category.
90 Citations
33 Claims
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1. A wireless access point comprising:
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a medium access control (MAC) circuit configured to generate a first traffic indication map, wherein the first traffic indication map announces a restricted access window; and a physical layer device configured to transmit a first beacon over a wireless medium, wherein the first beacon includes the first traffic indication map, wherein the restricted access window begins subsequent to transmission of the first beacon, and wherein the restricted access window ends prior to transmission of a second beacon, wherein the second beacon is transmitted subsequent to the first beacon with no intervening beacons, during the restricted access window, access the wireless medium using a first set of channel access parameters, and outside of the restricted access window, access the wireless medium using a second set of channel access parameters, wherein the second set of channel access parameters is different than the first set of channel access parameters, the second set of channel access parameters includes a plurality of channel access values respectively corresponding to a plurality of access categories, a first frame is associated with a first access category of the plurality of access categories, and the first frame is transmitted after waiting for a period of time that is based on a channel access value of the plurality of channel access values corresponding to the first access category. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of operating a wireless access point, the method comprising:
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generating a first traffic indication map, wherein the first traffic indication map announces a restricted access window; transmitting a first beacon over a wireless medium, wherein the first beacon includes the first traffic indication map, wherein the restricted access window begins subsequent to transmission of the first beacon, and wherein the restricted access window ends prior to transmission of a second beacon, wherein the second beacon is transmitted subsequent to the first beacon with no intervening beacons; during the restricted access window, accessing the wireless medium using a first set of channel access parameters; and outside of the restricted access window, accessing the wireless medium using a second set of channel access parameters, wherein the second set of channel access parameters is different than the first set of channel access parameters, the second set of channel access parameters includes a plurality of channel access values respectively corresponding to a plurality of access categories, a first frame is associated with a first access category of the plurality of access categories, and the first frame is transmitted after waiting for a period of time that is based on a channel access value of the plurality of channel access values corresponding to the first access category. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of operating a wireless access point, the method comprising:
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transmitting a first beacon over a wireless medium, wherein the first beacon announces a time period, wherein the time period begins subsequent to transmission of the first beacon, and wherein the time period ends prior to transmission of a second beacon, wherein the second beacon is transmitted subsequent to the first beacon with no intervening beacons; during the time period, accessing the wireless medium using a first set of channel access parameters; and outside of the time period, accessing the wireless medium using a second set of channel access parameters, wherein the second set of channel access parameters is different than the first set of channel access parameters, the second set of channel access parameters includes a plurality of channel access values respectively corresponding to a plurality of access categories, a first frame is associated with a first access category of the plurality of access categories, and the first frame is transmitted after waiting for a period of time that is based on a channel access value of the plurality of channel access values corresponding to the first access category. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification