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US 2010/0134699 A1Published application
Detection of signals contianing sine-wave components through measurment of the power spectral density (psd) and cyclic spectrum
AssigneeThomson Licensing
InventorsWen Gao, Hou-Shin Chen
Life of this patent
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Abstract
A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and a signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an Advanced Television Systems Committee (ATSC) DTV (digital television) broadcast signal was not detected. The signal detector performs spectrum sensing as a function of power spectral density (PSD) and cyclic spectrum.
Claims18
A method for use in a wireless endpoint, the method comprising:
- selecting one of a number of channels;
- downconverting a received signal on the selected channel for providing a downconverted signal;
- decimating the downconverted signal for providing a decimated signal;
- and
- detecting energy peaks in the decimated signal for detecting the presence of an incumbent signal on the selected channel.
2 more elements
Apparatus comprising:
- a downconverter for providing a downconverted signal from a selected channel;
- a decimator for decimating the downconverted signal for providing a decimated signal;
- and
- a processor for detecting energy peaks in the decimated signal for detecting the presence of an incumbent signal on the selected channel.
1 more element
Dependencies are inferred from the claim text.