Method and apparatus for processing radio signals to...

Details Method and apparatus for processing radio signals to... Method and apparatus for processing radio signals to...

2011-08-30

2011-08-30

Pierre, Peguy Jean (Department: 2819)

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

C455S067140

Reexamination Certificate

active

08010069

ABSTRACT:
The present invention discloses a method of multiple systems sensing for coexisting radio networks, including: performing energy detection and carrier locking; detecting the fundamental frequencies; and identifying the corresponding active systems from the detected fundamental frequencies and the evaluation of the estimated power spectrum density vector or the estimated trispectrum matrix. Based on the method, an apparatus capable of multiple systems sensing is presented. Furthermore, the present invention also provides an apparatus of multiple systems sensing for coexisting radio networks.

REFERENCES:
patent: 5487178 (1996-01-01), Hanninen
patent: 6574491 (2003-06-01), Elghazzawi
patent: 7676205 (2010-03-01), Moffatt et al.
patent: 2008/0267416 (2008-10-01), Goldstein et al.
patent: 2010/0173586 (2010-07-01), McHenry et al.

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