APPARATUS AND METHOD FOR ADAPTIVE SLEEP OF WIRELESSLY NETWORKED DEVICES
First Claim
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1. A method of power saving in a wireless network for transmitting uncompressed audio/video (A/V) data, the method comprising:
- detecting a low or no channel activity in the wireless network by a station;
entering into a deep sleep mode by the station, wherein the deep sleep mode includes one or more periods of inactive state during which the station does not transmit a beacon;
computing a current sleep period for a current sleep window cycle based at least partly on one or more previous sleep periods by the station; and
remaining in the deep sleep mode by the station for the duration of the computed current sleep period or until a new channel activity is detected in the wireless network.
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Abstract
A system and method for power saving in a wireless network for transmitting uncompressed audio/video (A/V) data disclosed. The method includes an adaptive sleep period scheme in which the current sleep period is computed based at least partly on one or more previous sleep periods. The method also includes entering an inactive state by a coordinator as well as non-coordinator stations in the wireless network in which no beacons are transmitted.
138 Citations
25 Claims
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1. A method of power saving in a wireless network for transmitting uncompressed audio/video (A/V) data, the method comprising:
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detecting a low or no channel activity in the wireless network by a station; entering into a deep sleep mode by the station, wherein the deep sleep mode includes one or more periods of inactive state during which the station does not transmit a beacon; computing a current sleep period for a current sleep window cycle based at least partly on one or more previous sleep periods by the station; and remaining in the deep sleep mode by the station for the duration of the computed current sleep period or until a new channel activity is detected in the wireless network. - View Dependent Claims (2, 3, 4)
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5. A method of power saving in a wireless network for transmitting uncompressed audio/video (A/V) data having a coordinator station, the method comprising:
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detecting a low or no channel activity in the wireless network by the coordinator station; and entering into a deep sleep mode status for a new sleep window, wherein the deep sleep mode includes a power-saving inactive state during which the coordinator station does not transmit a beacon. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus for power saving in a wireless network for transmitting uncompressed audio/video (A/V) data, the apparatus comprising:
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a processor configured to; cause the station to enter into a deep sleep mode when a low or no channel activity is detected within a preset duration, wherein the deep sleep mode includes one or more periods of inactive state during which the station does not transmit a beacon, and compute a current sleep period for a current sleep window cycle using an adaptive sleep period algorithm based at least partly on one or more previous sleep periods; and a memory in communication with the processor and configured to store the computed current sleep period. - View Dependent Claims (17, 18, 19)
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20. An apparatus for power saving in a wireless network for transmitting uncompressed audio/video (A/V) data, the apparatus comprising:
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a processor configured to; compute a current sleep period, and cause a coordinator station to enter into a deep sleep mode status for the duration of the current sleep period when a low or no channel activity is detected, wherein the deep sleep mode includes a power-saving inactive state during which the coordinator station does not transmit a beacon; and a memory in data communication with the processor and configured to store the current sleep period. - View Dependent Claims (21, 22, 23, 24)
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25. An apparatus for power saving in a wireless network for transmitting uncompressed audio/video (A/V) data, the apparatus comprising:
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means for detecting a low or no channel activity in the wireless network; means for computing a current sleep period based at least partly on one or more previous sleep periods; and means for entering a deep sleep mode, wherein the deep sleep mode includes one or more periods of inactive state during which the station does not transmit a beacon.
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Specification