Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels
Reexamination Certificate
2007-05-21
2010-10-26
Nguyen, Brian D (Department: 2472)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via frequency channels
C370S338000
Reexamination Certificate
active
07822069
ABSTRACT:
Techniques for performing phase correction for wireless communication are described. Received pilot symbols and received data symbols may be obtained from an orthogonal frequency division multiplexing (OFDM) and/or multiple-input multiple-output (MIMO) transmission. First phase information is obtained based upon the received pilot symbols. Second phase information is obtained based upon the received data symbols. The phase of the received data symbols is corrected based upon the first and second phase information (directly and/or indirectly). For example, the phase of the received data symbols may be corrected based upon the first phase information, detection may be performed on the phase corrected data symbols to obtain estimated data symbols, the second phase information may be obtained based upon the estimated data symbols, and the phase of the estimated data symbols may be corrected based upon the second phase information. The phase correction may also be performed in other manners.
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Howard Steven J.
Medvedev Irina
Wallace Mark S.
Walton Jay Rodney
Dehaemer, Jr. Michael J.
Nguyen Brian D
QUALCOMM Incorporated
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