INDEPENDENT MEDIUM ACCESS CONTROL FOR DISCOVERING WIRELESS NETWORKS
First Claim
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1. An apparatus, comprising:
- a wireless transceiver operable to transmit and receive wireless signals; and
a medium access controller operable to independently initiate transitions from a scanning state to a power conserving state and from the power conserving state to the scanning state, wherein in the scanning state the medium access controller directs the wireless transceiver to receive frames on at least one wireless channel and the medium access controller scans the received frames for identifiers of one or more respective target access points, and in the power conserving state the medium access controller places at least one of the wireless transceiver and the medium access controller in a low-power mode of operation.
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Abstract
In one aspect, a wireless transceiver transmits and receives wireless signals, and medium access controller independently initiates transitions from a scanning state to a power conserving state and from the power conserving state to the scanning state. In the scanning state, the medium access controller directs the wireless transceiver to receive frames on at least one wireless channel and the medium access controller scans the received frames for identifiers of one or more respective target access points. In the power conserving state, the medium access controller places at least one of the wireless transceiver and the medium access controller in a low-power mode of operation.
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Citations
22 Claims
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1. An apparatus, comprising:
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a wireless transceiver operable to transmit and receive wireless signals; and a medium access controller operable to independently initiate transitions from a scanning state to a power conserving state and from the power conserving state to the scanning state, wherein in the scanning state the medium access controller directs the wireless transceiver to receive frames on at least one wireless channel and the medium access controller scans the received frames for identifiers of one or more respective target access points, and in the power conserving state the medium access controller places at least one of the wireless transceiver and the medium access controller in a low-power mode of operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A machine readable medium storing machine-readable instructions causing a medium access controller to perform operations comprising:
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in a scanning state, outputting at least one transceiver control signal specifying at least one wireless channel from which to receive frames and scanning received frames for identifiers of one or more respective target access points; in a power conserving state, outputting at least one medium access control signal dictating a low-power mode of operation; and independently initiating transitions from the scanning state to the power conserving state and from the power conserving state to the scanning state. - View Dependent Claims (13, 14, 15, 16)
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17. A medium access control method, comprising:
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in a scanning state, outputting at least one transceiver control signal specifying at least one wireless channel and scanning received frames for identifiers of one or more respective target access points; in a power conserving state, outputting at least one medium access control signal dictating a low-power mode of operation; and independently initiating transitions from the scanning state to the power conserving state and from the power conserving state to the scanning state. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification