Signalling channel and radio system for power saving in wireless devices
AssigneeMicrosoft Corporation
InventorsShiquan Wu, Wen Tong, Claude Royer, Edward Sich
Life of this patent
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Abstract
Wireless devices, transmitters, systems and methods are provided that have a narrow band signalling channel and a wide band channel, for example an OFDM channel. In order to save power, the wireless device is nominally powered down with the exception of a receiver specific to the narrow band signalling channel. Once instructed to do so over the narrow band signalling channel, the wireless device wakes up the rest of its wide band receive circuitry.
Claims20
A method comprising:
- generating a narrow band signal at an edge of a CDMA bandwidth of a wide band CDMA signal, the narrow band signal comprising information configured to indicate whether or not to wake up a wide band receiver;
- and
- transmitting the wide band CDMA signal and the narrow band signal.
One or more computer-readable storage memories comprising processor-executable instructions which, responsive to execution by at least one processor, enable a device to:
- generate a narrow band signal at an edge of a CDMA bandwidth of a wide band CDMA signal, the narrow band signal comprising information configured to indicate whether or not to wake up a particular wide band receiver;
- and
- transmit the wide band CDMA signal and the narrow band signal.
An apparatus comprising:
- at least one processor;
- and
- one or more computer-readable storage memories comprising processor-executable instructions which, responsive to execution by the at least one processor, enable the apparatus to:
- generate a narrow band signal at an edge of a CDMA bandwidth of a wide band CDMA signal, the narrow band signal comprising information configured to indicate whether or not to wake up a particular wide band receiver;
- and
- transmit the wide band CDMA signal and the narrow band signal.
Dependencies are inferred from the claim text.