Predictive method and apparatus for antenna selection in a wireless communication system
First Claim
1. A wireless communication device, comprising:
- a plurality of antennas; and
a predictive antenna selector that evaluates a signal quality of each of said plurality of antennas and selects an antenna to communicate one or more frames based on said signal quality evaluation.
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Accused Products
Abstract
A predictive method and apparatus are disclosed for selecting an antenna to use in a multi-antenna wireless device. A predictive antenna selector predicts the best antenna (for both receiving and transmitting signals) based on the signal quality of the antenna for prior received frames. The quality of each antenna is evaluated, for example, in a random order, round robin fashion or according to some equal or weighted schedule. The signal quality can be evaluated for a given antenna during a preamble portion of a frame or for any frame up to an entire frame duration. A given antenna can be removed from the signal quality evaluation (for example, to a bad antenna list) if the given antenna fails to satisfy one or more predefined criteria, such as whether a signal quality of a given antenna is below a signal quality of a remainder of the plurality of antennas by a predefined amount. The signal quality of antennas on the bad antenna list can be reevaluated to determine when to return a removed antenna to the plurality of antennas that are evaluated.
169 Citations
25 Claims
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1. A wireless communication device, comprising:
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a plurality of antennas; and
a predictive antenna selector that evaluates a signal quality of each of said plurality of antennas and selects an antenna to communicate one or more frames based on said signal quality evaluation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for wireless communication on one of a plurality of antennas, comprising the steps of:
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evaluating a signal quality of each of said plurality of antennas; and
selecting an antenna to communicate one or more frames based on said signal quality evaluation for at least one prior frame. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A predictive antenna selector for use in a wireless communication device, comprising:
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means for evaluating a signal quality of a plurality of antennas; and
means for selecting an antenna to communicate one or more frames based on said signal quality evaluation for at least one prior frame. - View Dependent Claims (24, 25)
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Specification