Reducing idle power consumption in a networked battery operated device
AssigneeMicrosoft Corporation
InventorsParamvir Bahl, Eugene Shih, Michael J. Sinclair
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AssigneeMicrosoft Corporation
InventorsParamvir Bahl, Eugene Shih, Michael J. Sinclair
Estimating the term…
An improved method and system for reducing the power consumption of computing devices capable of communicating over a wireless network allows longer device operation and/or the use of smaller batteries. The wireless computing device supports a low power channel for receiving control signals during idle periods of operation. When the computing device is idle, the device is configured to power down all of its components with the exception of the circuitry required to power the low power channel. As such, the channel is maintained in an active state for receiving signals during both idle and non-idle periods, or in an embodiment, only during idle periods. When another device wishes to communicate with the wireless computing device, the low power channel passes a “wake-up” signal to the device indicating that the device be powered up from the idle mode of operation. A host RF component that is coupled to the network via a host computer generates this wake-up signal in an embodiment of the invention.
A method for reducing the power consumption of a wireless computing device capable of accessing a network, the method comprising:
A method for reducing the power consumption of a wireless computing device capable of accessing a network, the method comprising:
A method for communicating with a wireless computing device over a network comprising a secondary communication channel, the secondary communication channel being a radio frequency channel operable by the wireless computing device and requiring less power usage by the wireless computing device than a primary communication channel also operable by the wireless computing device, the method comprising:
A system for communicating with a wireless computing device via a secondary communication channel, the secondary communication channel being a radio frequency channel operable by the wireless computing device and requiring less power usage by the wireless computing device than a primary communication channel also operable by the wireless computing device, the system comprising:
A method for enabling a first wireless computing device operating a first low power transceiver to connect to a network when it is not within direct range of a host transceiver that is connected to the network, the method comprising:
A method for enabling a first wireless computing device operating a first low power transceiver to communicably link to a network when it is not within direct low power radio range of a low power host transceiver that is communicably linked to the network, the method comprising:
The method of claim 21 wherein establishing a direct communication link via a first low power channel between the first low power transceiver and a second low power transceiver further comprises placing the second wireless computing device within a physical range suitable for enabling a direct radio link between the second low power transceiver and the host transceiver.
A wireless network system for activating a high power communication channel operable by a wireless computing device from a low power state of operation, the system comprising:
The wireless network system according to claim 23 wherein a first one of the plurality of wireless computing devices is out of direct radio range of the host computer with respect to the low power radio channel and wherein a second one of the plurality of wireless computing devices is within direct radio range of the host computer with respect to the low power radio channel, and whereby the second one of the plurality of wireless computing devices facilitates communication of control information over the low power radio channel between the out of range wireless computing device and the host computer.
A power efficient hand-held device for use in a wireless network, comprising:
The method according to claim 25 wherein the secondary channel is a low frequency channel having a carrier frequency less than that of the primary channel.
The method according to claim 26 wherein the primary channel comprises an 802.11 based communication channel.
An access point for interfacing a plurality of wireless devices to a network comprising;
The access point according to claim 28, wherein the interface to the first wireless channel consumes more power to transmit a bit over the first channel than the interface to the second channel consumes to transmit a bit over the second channel.
The access point according to claim 30, wherein the first channel has a carrier frequency that differs from a carrier frequency of the second channel.
An operating system embodied in a computer-readable medium in the form of computer-readable instructions for performing a method comprising:
A method for enabling a target wireless computing device operating a target low power transceiver to communicably link to a network when it is not within direct low power radio range of a low power host transceiver that is communicably linked to the network, the method comprising:
Dependencies are inferred from the claim text.