Wireless LAN device and corrsponding method for power saving in wireless local area networks (WLAN) supporting peer to peer communications
First Claim
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1. A wireless device supporting peer to peer communications, comprising:
- a transceiver configured to receive and transmit data over a wireless link;
a network activity sensor coupled to the transceiver and configured to sense peer to peer activity by the transceiver and generate a network activity sensor signal; and
a controller coupled to the network activity sensor and transceiver, and configured to selectively deactivate a portion of the wireless device based at least in part on the network activity sensor signal, wherein the deactivated portion comprises a portion of device electronics other than the transceiver;
wherein the wireless device operates on battery power from a battery, and the controller is configured to selectively deactivate the portion of device electronics based at least in part on a battery charge condition of the battery by applying a change to a power duty cycle of the portion of device electronics based at least in part on a battery charge level of the battery.
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Abstract
A wireless device (110) is provided for supporting peer to peer communications. A transceiver (132) is configured to receive and transmit data over a wireless link. A network activity sensor (136) is coupled to the transceiver and configured to sense peer to peer activity by the transceiver and generate a network activity sensor signal. A controller (140) is coupled to the network activity sensor (136) and the transceiver (132), and configured to selectively deactivate a portion of the wireless device based at least in part on the network activity sensor signal. Advantages of the invention include the ability to prolong battery life in wireless devices.
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Citations
16 Claims
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1. A wireless device supporting peer to peer communications, comprising:
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a transceiver configured to receive and transmit data over a wireless link; a network activity sensor coupled to the transceiver and configured to sense peer to peer activity by the transceiver and generate a network activity sensor signal; and a controller coupled to the network activity sensor and transceiver, and configured to selectively deactivate a portion of the wireless device based at least in part on the network activity sensor signal, wherein the deactivated portion comprises a portion of device electronics other than the transceiver; wherein the wireless device operates on battery power from a battery, and the controller is configured to selectively deactivate the portion of device electronics based at least in part on a battery charge condition of the battery by applying a change to a power duty cycle of the portion of device electronics based at least in part on a battery charge level of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for improving battery life in a wireless device having a transceiver for use in a peer to peer network, comprising the steps of:
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receiving and transmitting data over a wireless link; sensing peer to peer activity by the transceiver and generating a network activity sensor signal; selectively deactivating a portion of the wireless device based at least in part on the network activity sensor signal, wherein the deactivated portion comprises a portion of device electronics other than the transceiver; and operating the wireless device on battery power from a battery; wherein the selectively deactivating step includes selectively deactivating the portion of device electronics based at least in part on a battery charge condition of the battery by applying a change to a power duty cycle of the portion of device electronics based at least in part on a battery charge level of the battery. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A wireless device using battery power to support peer to peer communications, comprising:
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a transceiver configured to receive and transmit data over a wireless link; a network activity sensor coupled to the transceiver and configured to sense peer to peer activity by the transceiver and generate a network activity sensor signal; and a controller coupled to the network activity sensor and transceiver, and configured to selectively deactivate a portion of the wireless device based at least in part on a combination of the network activity sensor signal and a battery condition indicative of a battery charge level of a battery of the wireless device, wherein selectively deactivating the portion of device comprises applying a change to a power duty cycle of the portion of the device. - View Dependent Claims (15, 16)
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Specification