Power management of radio transceiver elements
First Claim
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1. A radio receiver, comprising:
- a plurality of radio receiver circuit elements; and
a power control module for;
identifying a receiver inactivity time corresponding to a time period between received RF signals in an established communication link;
identifying one or more elements of the plurality of radio receiver circuit elements that can be powered down and back up within the receiver inactivity time to reduce power consumption; and
identifying a restoration time for at least one element of the one or more elements, wherein the restoration time is a time at which the at least one element should automatically be powered on in order to achieve an operational mode steady state prior to the expiration of the receiver inactivity time.
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Abstract
A radio receiver includes a power control module for selectively powering down and powering up radio receiver elements in between known communication periods according to one aspect of the present invention. According to a second aspect of the invention, the radio receiver operates in a low power mode of operation and periodically “sniffs” to determine whether an access point has messages or communication signals to transmit to it.
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Citations
20 Claims
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1. A radio receiver, comprising:
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a plurality of radio receiver circuit elements; and a power control module for; identifying a receiver inactivity time corresponding to a time period between received RF signals in an established communication link; identifying one or more elements of the plurality of radio receiver circuit elements that can be powered down and back up within the receiver inactivity time to reduce power consumption; and identifying a restoration time for at least one element of the one or more elements, wherein the restoration time is a time at which the at least one element should automatically be powered on in order to achieve an operational mode steady state prior to the expiration of the receiver inactivity time. - View Dependent Claims (2, 3, 4, 5)
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6. A radio receiver, comprising:
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a plurality of radio receiver circuit elements; and a power control module for; identifying a radio receiver element inactivity time for at least one element of the radio receiver circuit elements; powering down, based upon the determined radio receiver element inactivity time, the at least one element; identifying a restoration time for the at least one element, wherein the restoration time is a time at which the at least one element should automatically be powered on in order to achieve an operational mode steady state prior to the expiration of the radio receiver element inactivity time; and powering the at least one element to an operational mode based solely on the restoration time. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A radio receiver, comprising:
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a plurality of radio receiver circuit elements; and a power control module for; identifying a radio receiver element inactivity time for at least one element of the plurality of radio receiver circuit elements in an established communication link; identifying a restoration time for the at least one element, wherein the restoration time is a time at which the at least one element should automatically be powered on in order to achieve an operational mode steady state prior to the expiration of the radio receiver element inactivity time; determining whether to place the at least one element into a power reduction mode based on the radio receiver element inactivity time; determining what type of a plurality of types of power reduction modes should be selected for the at least one element if it is to be placed into the power reduction mode; placing the at least one element into the selected power reduction mode; and powering the at least one element to an operational mode based solely on the restoration time. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification