Detecting in-phase and quadrature-phase amplitudes of MIMO...

Pulse or digital communications – Receivers – Particular pulse demodulator or detector

Reexamination Certificate

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Reexamination Certificate

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08059761

ABSTRACT:
Circuits detect communications from multiple transmitting antennas to multiple receiving antennas. A respective first block for each non-initial transmitting antenna determines partial distances for pairings of a first candidate and a quadrature-phase amplitude. A respective second block for the initial transmitting antenna determines partial distances for combinations of phase amplitudes. A respective second block for each non-initial transmitting antenna determines partial distances for pairings of a second candidate and an in-phase amplitude. A respective first selector for each non-initial transmitting antenna selects the first candidates from the pairings for the respective second block having smaller partial distances. A respective second selector for each non-initial transmitting antenna selects the second candidates from the pairings for the respective first block having smaller partial distances. An identifier circuit selects a final candidate with a smaller partial distance from the pairings of the respective second block for the last transmitting antenna.

REFERENCES:
patent: 7245666 (2007-07-01), Gardner et al.
patent: 7529307 (2009-05-01), Sandhu et al.
patent: 7720169 (2010-05-01), Reuven et al.
patent: 2006/0148506 (2006-07-01), Hoo
patent: 2006/0171483 (2006-08-01), Jia et al.
patent: 2007/0162827 (2007-07-01), Walton et al.
patent: 2008/0089446 (2008-04-01), Lee et al.
patent: 2008/0095281 (2008-04-01), Hosur et al.
patent: 2008/0107196 (2008-05-01), Won
patent: 2008/0144746 (2008-06-01), Waters et al.
patent: 2008/0279298 (2008-11-01), Ben-Yishai et al.
patent: 2008/0279299 (2008-11-01), Reuven et al.
patent: 2009/0003499 (2009-01-01), Chiu et al.
patent: 2009/0060079 (2009-03-01), Choi et al.
patent: 2009/0154600 (2009-06-01), Kim et al.
patent: 2009/0196379 (2009-08-01), Gan et al.
patent: WO 2008/027554 (2008-03-01), None
Chin, W. H., “QRD Based Tree Search Data Detection for MIMO Communication System,”Proc. of the IEEE 61stSemiannual Vehicular Technology Conference, May 30-Jun. 1, 2005, pp. 1624-1627, vol. 3, Stockholm, Sweden.
Detert, Thorben, “An Efficient Fixed Complexity QRD-M Algorithm for MIMO-OFDM using Per-Survivor Slicing,”Proc. of the 4th IEEE Int'l. Symposium on Wireless Communication Systems, Oct. 16-19, 2007, pp. 572-576, Trondheim, Norway.
Amiri, Kiarash et al., “Novel Sort-Free Detector with Modified Real-Valued Decomposition (M-RVD) Ordering in MIMO Systems,”Proc. of the 2008 IEEE Global Telecommunications Conference, Nov. 30, 2008, pp. 1-5, Piscataway, New Jersey, USA.
Azzam, Luay et al., “Reduced Complexity Sphere Decoding for Square QAM via a New Lattice Representation,”Proc. of the 2007 IEEE Global Telecommunications Conference, Nov. 1, 2007, pp. 4242-4246, Piscataway, New Jersey, USA.
Azzam, Luay et al., “Reduction of ML Decoding Complexity for MIMO Sphere Decoding, QOSTBC, and OSTBC,”Proc. of the 2008 Information Theory and Applications Workshop, Jan. 27, 2008, pp. 18-25, Piscataway, New Jersey, USA.
Chen, Sizhong et al., “Relaxed K-Best MIMO Signal Detector Design and VLSI Implementation,”IEEE Transactions on Very Large Scale Integration(VLSI)Systems, Mar. 2007, pp. 328-337, vol. 15, No. 3.
Kawai, Hiroyuki et al., “Independent Adaptive Control of Surviving Symbol Replica Candidates at Each Stage Based on Minimum Branch Metric in QRM-MLD for OFCDM MIMO Multiplexing,”Proc. of the 2004 IEEE 60thVehicular Technology Conference, Sep. 26, 2004, pp. 1558-1564, vol. 3, Piscataway, New Jersey, USA.
Lin, Hsin-Lei et al., “A High-Speed SDM-MIMO Decoder Using Efficient Candidate Searching for Wireless Communication,”IEEE Transactions on Circuits and Systems—II: Express Briefs, Mar. 2008, pp. 289-293, vol. 55, No. 3.
Mondal, Sudip, “A Novel Approach for K-Best MIMO Detection and its VLSI Implementation,”Proc. of the 2008 IEEE International Symposium on Circuits and Systems, May 18, 2008, pp. 936-939, Piscataway, New Jersey, USA.
Myllylä, Markus et al., “Implementation Aspects of List Sphere Detector Algorithms,”Proc. of the 2007 IEEE Global Telecommunications Conference, Nov. 1, 2007, pp. 3915-3920, Piscataway, New Jersey, USA.
Myllylä, Markus et al., “A List Sphere Detector Based on Dijkstra's Algorithm for MIMO-OFDM Systems,”Proc. of the 2007 IEEE 18thAnnual Symposium on Personal, Indoor and Mobile Radio Communications, Sep. 1, 2007, pp. 1-5, Piscataway, New Jersey, USA.
Wu, Yi Hsuan, “Early-Pruned K-Best Sphere Decoding Algorithm Based on Radius Constrains,”Proc. of the 2008 IEEE International Conference on Communications, May 19, 2008, pp. 4496-4500, Piscataway, New Jersey, USA.
Huang, Liang et al.; “Better k-best Parsing”; Proceedings of the Ninth International Workshop on Parsing Technologies (IWPT); Oct. 2005; Copyright 2005 Association for Computational Linguistic; pp. 53-64.
Guo, Zhan et al.; “A Low Complexity Soft-Output MIMO Decoding Algorithm”; Advances in Wired and Wireless Communication; IEEE/Sarnoff Symposium; 2005 IEEE; pp. 90-93.
Wong, Kwan-wei et al.; “A VLSI Architecture of a K-Best Lattice Decoding Algorithm for MIMO Channels”; Circuits and Systems; 2002; ISCA 2002; IEEE International Symposium; Copyright 2002 IEEE; pp. III-273-III-276.
Damen, Mohamed Oussama et al.; “On Maximum-Likelihood Detection and the Search for the closest Lattice Point”; IEEE Transactions on Information Theory; vol. 49, No. 10; Oct. 2003; pp. 2389-2402.
Burg, Andreas et al.; “VLSI Implementation of MIMO Detection Using the Sphere Decoding Algorithm”; IEEE Journal of Solid-State Circuits; vol. 40, No. 7; Jul. 2005; Copyright 2005 IEEE; pp. 1566-1577.
Amiri, Kiarash et al.; “FPGA Implementation of Dynamic Threshold Sphere Detection for MIMO Systems”; 40th Asilomar Conference on Signals, Systems, and Computers; Nov. 2006; pp. 94-98.
Guo, Zhan et al.; A 53.3 Mb/s 4X4 16-QAM MIMO Decoder in 0.35-μm CMOS; IEEE International Symposium on Circuits and Systems; vol. 5; Copyright 2005 IEEE; May 2005; pp. 4947-4950.
Bengough, Peter A. et al.; “Sorting-Based VLSI Architectures for theM-Algorithm andT-Algorithm Trellis Decoders”; Copyright 1995 IEEE; IEEE Transactions on Communications, vol. 43, No. 2/3/4, Feb. / Mar. / Apr. 1995; pp. 514-522.
Xilinx, Inc.; U.S. Appl. No. 12/170,468; by Kiarash Amiri et al.; filed on Jul. 10, 2008.
Xilinx, Inc.; U.S. Appl. No. 12/045,786; by Kiarash Amiri et al.; filed on Mar. 11, 2008.
Xilinx, Inc.; U.S. Appl. No. 12/025,971; by Kiarash Amiri et al.; filed on Feb. 5, 2008.
Xilinx, Inc.; U.S. Appl. No. 12/193,106; by Christopher H. Dick et al.; filed on Aug. 18, 2008.

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