Title of Invention

DATA DETECTION AND DEMODULATION FOR WIRELESS COMMUNICATION SYSTEMS

Abstract Techniques for detecting and demodulating data transmissions in wireless communication systems. In one aspect, a decision-directed detector detects for data transmissions in a received signal by utilizing received data symbols as well as received pilot symbols. The decision-directed detector may be designed to perform differential detection in the frequency domain or coherent detection in the time domain, and may be used with multi-carrier modulation (e.g., OFDM). In another aspect, an adaptive threshold is used to perform detection of received data transmissions. A threshold may be determined for each data transmission hypothesized to have been received. The threshold may be computed, for example, based on the signal plus noise energy of the hypothesized data transmission.
Full Text

Documents:

720-CHENP-2005 ABSTRACT.pdf

720-CHENP-2005 CLAIMS.pdf

720-CHENP-2005 CORRESPONDENCE OTHERS.pdf

720-CHENP-2005 CORRESPONDENCE PO.pdf

720-CHENP-2005 DESCRIPTION (COMPLETE).pdf

720-CHENP-2005 DRAWINGS.pdf

720-CHENP-2005 FORM 1.pdf

720-CHENP-2005 FORM 18.pdf

720-CHENP-2005 FORM 3.pdf

720-CHENP-2005 FORM 5.pdf

720-CHENP-2005 PCT.pdf

720-CHENP-2005 PETITIONS.pdf

720-CHENP-2005 POWER OF ATTORNEY.pdf


Patent Number 239216
Indian Patent Application Number 720/CHENP/2005
PG Journal Number 12/2010
Publication Date 19-Mar-2010
Grant Date 10-Mar-2010
Date of Filing 25-Apr-2005
Name of Patentee QUALCOMM INCORPORATED
Applicant Address 5775 MOREHOUSE DRIVE, SAN DIEGO, CALIFORNIA 92121
Inventors:
# Inventor's Name Inventor's Address
1 WALTON, J. RODNEY 85 HIGHWOODS LANE, CARLISLE, MA 01741
2 WALLACE, MARK, S 4 MADEL LANE, BEDFORD, MA 01730
PCT International Classification Number H04L1/06
PCT International Application Number PCT/US03/34568
PCT International Filing date 2003-10-24
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 60/421,309 2002-10-25 U.S.A.
2 60/432,626 2002-12-10 U.S.A.
3 10/692,833 2003-10-23 U.S.A.