Title of Invention

“ROBUST AND LOW-COMPLEXITY COMBINED SIGNAL POWER ESTIMATION FOR OFDM”

Abstract Ascertaining a signal power of an Orthogonal Frequency Division Multiplexing (OFDM) signal involves ascertaining a plurality of channel estimates from the OFDM signal. Compensating phase shift values for phase aligning the plurality of channel estimates are estimated and used to generate phase corrected channel estimates. The phase corrected channel estimates are coherently combined, thereby ascertaining the signal power of the OFDM signal. The compensating phase shift values may be based on a channel characteristic (e.g., delay spread) or may alternatively be hypothesized.
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Documents:

http://ipindiaonline.gov.in/patentsearch/GrantedSearch/viewdoc.aspx?id=8pEEniQlK1PVr/9gCQ1djA==&loc=vsnutRQWHdTHa1EUofPtPQ==


Patent Number 279545
Indian Patent Application Number 812/MUMNP/2009
PG Journal Number 04/2017
Publication Date 27-Jan-2017
Grant Date 25-Jan-2017
Date of Filing 24-Apr-2009
Name of Patentee TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Applicant Address S-164 83 Stockholm Sweden
Inventors:
# Inventor's Name Inventor's Address
1 WILHELMSSON Leif Lyftvagen 5 SE-240 10 DALBY Sweden
2 LINDOFF Bengt Morkullevagen 45 SE-237 36 BJARRED Sweden
PCT International Classification Number H04L 27/26
PCT International Application Number PCT/EP2007/060468
PCT International Filing date 2007-10-02
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 11/762,382 2007-06-13 U.S.A.
2 60/863,046 2006-10-26 U.S.A.