Receiving apparatus in a radio communication system using at...

Pulse or digital communications – Receivers – Interference or noise reduction

Reexamination Certificate

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Reexamination Certificate

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10692896

ABSTRACT:
A receiver for receiving complex symbols in a radio communication system, in which a symbol arranger collects signals from at least three transmitter antennas through at least one receiver antenna over four time intervals; a channel estimator estimates at least three channel gains from the three transmitter antennas to the receiver antenna; first and second decoders each compute metrics for all possible pairs of symbols using the received signals and channel gains, and detect two symbols having a minimum metric; And a P/S (Parallel to Serial) converter arranges the detected symbols in the right order. Each decoder linearly operates the received signals and channel gains, pre-detects two symbols using threshold detection, and outputs the pre-detected symbols as final symbols if the product of the product of the pre-detected symbols and a constant determined by the channel gains is a minimum.

REFERENCES:
patent: 6678263 (2004-01-01), Hammons et al.
patent: 2002/0044591 (2002-04-01), Lee et al.
patent: 2002/0101908 (2002-08-01), Kim et al.
patent: 2003/0021355 (2003-01-01), You
patent: 2003/0086479 (2003-05-01), Naguib
patent: 2004/0120411 (2004-06-01), Walton et al.
Hamid Jafarkhani, “A Quasi-Orthogonal Space-Time Block Code”, IEEE Transactions on Communications, vol. 49, No. 1, pp. 1-4, Jan. 2001.
Vahid Tarokh et al. “Space Time Block Coding from Orthogonal Design”, IEEE Trans. On Info., Theory, vol. 45, pp. 1456-1467, Jul. 1999.
Siavash M. Alamouti “A Simple Transmitter Diversity Scheme for Wireless Communications”, IEEE Journal on Selected Area in Communications, vol. 16, pp. 1451-1458, Oct. 1998.
Olav Tirkkonen et al., Minimal Non-Orthogonality Rate 1 Space-Time Block Code for 3+ Tx Antennas, IEEE 6thSymp. On Spread-Spectrum Tech. & Appli., NJIT, New Jersey, USA, Sep. 6-8, 2000.
Naresh Sharma et al., Improved Quasi-Orthogonal Codes Through Constellation Rotation, 2002.
Weifeng Su et al., Quasi-Orthogonal Space-Time Block Codes with Full Diversity, 2002.

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