Methods and apparatus for spectrum sensing of signal features in a wireless channel
AssigneeQUALCOMM Incorporated
InventorStephen J. Shellhammer
Life of this patent
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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.
Claims36
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.
An apparatus operable for sensing features of a signal in a wireless communication system, the apparatus comprising:
- 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.
An apparatus operable for sensing features of a signal in a wireless communication system, the apparatus comprising:
- 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.
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.
Dependencies are inferred from the claim text.