Idle connection state power consumption reduction in a wireless local area network using beacon delay advertisement
First Claim
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1. A method for use in a station in a wireless local area network (WLAN) system, said method comprising the steps of:
- receiving a message containing beacon transmission delay information transmitted by an access point; and
calculating a wake for beacon time value as a sum of said beacon transmission delay and a Target Beacon Transmission Time (TBTT) advertised by said access point.
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Abstract
A novel and useful apparatus for and method of Improving idle connection state power consumption in wireless local area network (WLAN) system. Beacon transmission delay information is determined by the access points and advertised to the stations via a Beacon Transmission Delay Information Element. In response, the stations adjust their Wake For Beacon Reception time accordingly to wake up at a time much closer to the actual receipt of the Beacon, thereby reducing power consumption due to the reduced time the receive circuits need to be powered on.
16 Citations
15 Claims
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1. A method for use in a station in a wireless local area network (WLAN) system, said method comprising the steps of:
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receiving a message containing beacon transmission delay information transmitted by an access point; and calculating a wake for beacon time value as a sum of said beacon transmission delay and a Target Beacon Transmission Time (TBTT) advertised by said access point. - View Dependent Claims (2, 3, 4, 5)
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6. A mobile communication device, comprising:
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a cellular radio; a WLAN radio; a processor communicatively coupled to said WLAN radio and said cellular radio, said processor operative to; receive a message containing beacon transmission delay information transmitted by an access point; and adjust a wake for beacon reception time value by calculating said wake for beacon reception time value as a sum of said beacon transmission delay and a Target Beacon Transmission Time (TBTT) advertised by said access point. - View Dependent Claims (7, 8)
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9. An apparatus, comprising:
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circuitry for receiving a message containing beacon transmission delay information transmitted by a wireless local area network (WLAN) access point; and circuitry for updating a wake for beacon reception time value in accordance with said beacon transmission delay information, wherein said updating comprises the calculating a wake for beacon time value as a sum of said beacon transmission delay and a Target Beacon Transmission Time (TBTT) advertised by said WLAN access point. - View Dependent Claims (10, 11, 12)
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13. A method, comprising:
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receiving a message containing beacon transmission delay information transmitted by an Wireless Local Area Network (WLAN) access point; and adjusting a wake for beacon reception time value in an apparatus enabled to receive the message in accordance with said beacon transmission delay information, wherein said wake for beacon reception time value is adjustable by calculating said wake for beacon time value as a sum of said beacon transmission delay and a Target Beacon Transmission Time (TBTT) advertised by said WLAN access point. - View Dependent Claims (14, 15)
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Specification