Methods and apparatus for spectrum sensing of signal features in a wireless channel
First Claim
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1. A method for sensing features of a signal in a wireless communication system, the method comprising:
- determining a plurality of spectral density estimates, each estimate of the plurality being derived based on reception of the signal by a respective antenna of a plurality of antennas;
combining the plurality of spectral density estimates; and
sensing the signal features based on the combination of the plurality of spectral density estimates.
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Abstract
Methods and apparatus for sensing features of a signal in a wireless communication system are disclosed. The disclosed methods and apparatus sense signal features by determining a number of spectral density estimates, where each estimate is derived based on reception of the signal by a respective antenna in a system with multiple sensing antennas. The spectral density estimates are then combined, and the signal features are sensed based on the combination of the spectral density estimates.
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36 Claims
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1. A method for sensing features of a signal in a wireless communication system, the method comprising:
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determining a plurality of spectral density estimates, each estimate of the plurality being derived based on reception of the signal by a respective antenna of a plurality of antennas; combining the plurality of spectral density estimates; and sensing the signal features based on the combination of the plurality of spectral density estimates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus operable for sensing features of a signal in a wireless communication system, the apparatus comprising:
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a memory storing instructions executable by a processor; and at least one processor configured to execute the instructions stored in the memory to; determine a plurality of spectral density estimates, each estimate of the plurality being derived based on reception of the signal by a respective antenna of a plurality of antennas; combine the plurality of spectral density estimates; and sense the signal features based on the combination of the plurality of spectral density estimates. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus operable for sensing features of a signal in a wireless communication system, the apparatus comprising:
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means for determining a plurality of spectral density estimates, each estimate of the plurality being derived based on reception of the signal by a respective antenna of a plurality of antennas; means for combining the plurality of spectral density estimates; and means for sensing the signal features based on the combination of the plurality of spectral density estimates. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A computer program product comprising:
a non-transitory computer-readable medium comprising; code for causing a computer to determine a plurality of spectral density estimates in a wireless device, each estimate of the plurality being derived based on reception of the signal by a respective antenna of a plurality of antennas; code for causing a computer to combine the plurality of spectral density estimates; and code for causing a computer to sense the signal features based on the combination of the plurality of spectral density estimates. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
Specification