Power efficient signal acquisition with multiple receive antennas
First Claim
Patent Images
1. An apparatus comprising:
- a plurality of analog receive chains to process signals received from a wireless medium; and
a controller to activate M receive chains within said plurality of analog receive chains during data receive operations and less than M receive chains within said plurality of analog receive chains during medium sensing operations, wherein M is a positive integer greater than 1.
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Abstract
In a wireless device having multiple receive antennas, wireless medium sensing operations are performed using a reduced number of receive antennas. Receive chains associated with unused receive antennas are deactivated to reduce power consumption within the device.
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Citations
22 Claims
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1. An apparatus comprising:
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a plurality of analog receive chains to process signals received from a wireless medium; and
a controller to activate M receive chains within said plurality of analog receive chains during data receive operations and less than M receive chains within said plurality of analog receive chains during medium sensing operations, wherein M is a positive integer greater than 1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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providing a wireless device having multiple receive antennas, each of said multiple receive antennas having a corresponding receive chain, said wireless device to perform both data receive operations and medium sensing operations;
activating M receive chains within said wireless device during data receive operations, wherein M is a positive integer greater than 1; and
activating less than M receive chains within said wireless device during medium sensing operations to conserve energy. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus comprising:
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a plurality of antennas including at least one dipole antenna;
a plurality of receive chains to process signals received from a wireless medium, each receive chain in said plurality of receive chains being coupled to an antenna in said plurality of antennas; and
a controller to activate M receive chains within said plurality of receive chains during data receive operations and less than M receive chains within said plurality of receive chains during medium sensing operations, wherein M is a positive integer greater than 1. - View Dependent Claims (18, 19)
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20. An article comprising a storage medium having instructions stored thereon that, when executed by a computing platform, operate to:
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activate M receive chains within a wireless device during data receive operations, wherein M is a positive integer greater than 1, wherein said wireless device includes multiple receive antennas, each of said multiple receive antennas having a corresponding receive chain; and
activate less than M receive chains within said wireless device during medium sensing operations to conserve energy. - View Dependent Claims (21, 22)
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Specification