Discovery-phase power conservation
First Claim
Patent Images
1. A System-on-Chip (SoC) comprising:
- a processor; and
a computer-readable storage memory device embodying computer-executable instructions, that, when executed by the processor, implement a power conserver configured to conserve power during a discovery phase of a wireless local area network (WLAN) by;
reducing power at an access point of the WLAN for a reduced-power-usage period, the access point operating in a geographical region and at a frequency in which client stations operating in the geographical region and at the frequency are required to passively search for radar transmissions prior to transmitting at the frequency, the reduced power being insufficient to enable the access point to receive communication from a client station within a communication region of the access point, the reduced-power-usage period at the access point being configured to vary according to information received by the access point from one of the client stations indicating a radar search period for the client station; and
increasing power at the access point subsequent to expiration of the reduced-power-usage period, the power being increased for a reception period in which communication from the client station or another client station within the communication region of the access point can be received.
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Accused Products
Abstract
The present specification describes techniques and apparatuses that enable power conservation in a wireless network. In some cases these techniques and apparatuses enable power conservation during a discovery phase and for a wireless network subject to a government mandate requiring a device of the network to passively search for radar transmission prior to establishing communication with another device of the network.
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Citations
20 Claims
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1. A System-on-Chip (SoC) comprising:
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a processor; and a computer-readable storage memory device embodying computer-executable instructions, that, when executed by the processor, implement a power conserver configured to conserve power during a discovery phase of a wireless local area network (WLAN) by; reducing power at an access point of the WLAN for a reduced-power-usage period, the access point operating in a geographical region and at a frequency in which client stations operating in the geographical region and at the frequency are required to passively search for radar transmissions prior to transmitting at the frequency, the reduced power being insufficient to enable the access point to receive communication from a client station within a communication region of the access point, the reduced-power-usage period at the access point being configured to vary according to information received by the access point from one of the client stations indicating a radar search period for the client station; and increasing power at the access point subsequent to expiration of the reduced-power-usage period, the power being increased for a reception period in which communication from the client station or another client station within the communication region of the access point can be received. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A System-on-Chip (SoC) comprising:
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a processor; and a computer-readable storage memory device embodying computer-executable instructions, that, when executed by the processor, implement a power conserver configured to conserve power during a discovery phase of a wireless local area network (WLAN) by; transmitting, from an access point of the WLAN, a first beacon, the first beacon to discover a client station with which to establish communication; maintaining power usage at the access point for a first reception period, the power usage sufficient to enable receiving a probe request from the client station; responsive to not receiving the probe request from the client station during the first reception period and prior to establishing a communication with the client station, reducing power usage at the access point after the first reception period ends and for a reduced-power-usage period, the reduced-power-usage period insufficient to enable receiving the probe request from the client station, the reduced-power-usage period at the access point being configured to vary according to information received by the access point from the client station indicating a radar search period for the client station; transmitting, from the access point, a second beacon, the second beacon to discover the client station; maintaining power usage at the access point for a second reception period, the power usage sufficient to enable receiving the probe request from the client station; and responsive to receiving the probe request from the client station during the second reception period, responding to the probe request with a probe response, the probe response part of establishing the communication with the client station. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A wireless communication device comprising:
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a wireless transmitter; a wireless receiver; and a power conserver configured to conserve power during operation of the wireless communication device by; causing the wireless transmitter to transmit a first beacon, the first beacon to discover a client station with which to establish communication; maintaining power usage of the wireless communication device for a first reception period, the power usage sufficient to enable the wireless receiver to receive a probe request from the client station; responsive to the wireless receiver not receiving the probe request from the client station during the first reception period and prior to establishing a communication with the client station, reducing power usage of the wireless communication device after the first reception period ends and for a reduced-power-usage period, the reduced-power-usage period insufficient to enable receiving the probe request from the client station, the reduced-power-usage period at the wireless communication device being configured to vary according to information received by the wireless receiver from the client station indicating a radar search period for the client station; causing the wireless transmitter to transmit a second beacon, the second beacon to discover the client station; maintaining power usage of the wireless communication device for a second reception period, the power usage sufficient to enable receiving the probe request from the client station; and responsive to the wireless receiver receiving the probe request from the client station during the second reception period, causing the wireless transmitter to respond to the probe request with a probe response, the probe response part of establishing the communication with the client station. - View Dependent Claims (20)
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Specification