Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2007-01-23
2007-01-23
Pham, Chi (Department: 2616)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S342000
Reexamination Certificate
active
10164209
ABSTRACT:
Apparatus employed by a remote unit wherein a plurality of channels are received as a received signal. Each channel is associated with a code. For each of the plurality of channels, others of the plurality of channels are subtracted from the received signal and a result of that subtracting is despread as data for that channel.
REFERENCES:
patent: 4470138 (1984-09-01), Gutleber
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 4928274 (1990-05-01), Gilhousen et al.
patent: 5028887 (1991-07-01), Gilmore
patent: 5099493 (1992-03-01), Zeger et al.
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5151919 (1992-09-01), Dent
patent: 5218619 (1993-06-01), Dent
patent: 5224122 (1993-06-01), Bruckert
patent: 5235612 (1993-08-01), Stilwell et al.
patent: 5237586 (1993-08-01), Bottomley
patent: 5276704 (1994-01-01), Dixon
patent: 5343494 (1994-08-01), Averst et al.
patent: 5343496 (1994-08-01), Honig et al.
patent: 5345468 (1994-09-01), Bi
patent: 5353304 (1994-10-01), Mochizuki
patent: 5377225 (1994-12-01), Davis
patent: 5418814 (1995-05-01), Hulbert
patent: 5467368 (1995-11-01), Takeuchi et al.
patent: 5579304 (1996-11-01), Sugimoto et al.
patent: 6868076 (2005-03-01), Schilling et al.
patent: 6868078 (2005-03-01), Schilling et al.
patent: S54-83579 (1979-07-01), None
patent: S5732107 (1981-01-01), None
patent: S57-32107 (1982-02-01), None
patent: S5483579 (1983-09-01), None
patent: 93/06550 (1993-04-01), None
patent: 9306550 (1993-04-01), None
Moshavi et al., “Multistage Linear Receivers for DS-CDMA Systems”, Unpublished Ph.D. dissertation, City University of New York, 1994.
Poor et al., “Single-User Detectors for Multiuser Channels”, IEEE Trans. on Commun., vol. 36, No. 1, pp. 50-60, Jan. 1988.
Monk et al., “A Noise-Whitening Approach to Multiple Access Noise Rejection—Part I: Theory and Background”, IEEE J. Select. Areas Commun., vol. 12, No. 5, Jun. 1994, pp. 817-827.
Rupf et al., “User-Separating Demodulation for Code-Division Multiple-Access Systems”, IEEE J. Select. Areas Commun., vol. 12, No. 5, Jun. 1994, pp. 786-795.
Verdu, “Minimum Probability of Error for Asynchronous Gaussian Multiple-Access Channels”, IEEE Trans. Inform. Theory, vol. IT-32, No. 1, Jan. 1986, pp. 85-96.
Xie et al., “Multiuser Signal Detection Using Sequential Decoding,” IEEE Trans. Commun., vol. 38, No. 5, May 1990, pp. 578-583.
Viterbi, “Very Low Rate Convolution Codes for Maximum Theoretical Performance of Spread-Spectrum Multiple-Access Channels”, IEEE J. on Selected Areas in Communications, vol. 8, No. 4, May 1990, p. 641-649.
Patel et al., “Analysis of a Simple Successive Interference Cancellation Scheme in a DS/CDMA System”, IEEE Journal on Selected Areas in Communication, vol. 12, No. 5, Jun. 1994, pp. 796-807.
Kubota et al., “Inter-Channel Interference Cancellation Technique for CDMA Mobile/Personal Communication Base Station”, IEEE Second International Symposium on Spread Spectrum Techniques and Applications, ISSTA 92, Nov. 29-Dec. 2, 1992, pp. 91-94.
Dent et al., “CDMA-IC: A Novel Code Division Multiple Access Scheme Based on Interference Cancellation”, Proc. PIMRC, Boston, MA, Oct. 1992, 98-102.
Varanasi et al., “Multistage Detection in Asynchronous Code-Division Multiple-Access Communications”, IEEE Transactions on Communications, vol. 38, Issue 4, Apr. 1990, pp. 509-519.
Kohno et al., “An Adaptive Canceller of Cochannel Interference for Spread-Spectrum Multiple Access Communication Networks in a Power Line”, IEEE Journal on Selected Areas in Communications, vol. 8, No. 4, May 1990, pp. 691-699.
Yoon et al., “A Spread-Spectrum Multiaccess System with Cochannel Interference Cancellation for Multipath Fading Channels”, IEEE Journal on Selected Areas in Communication, vol. 11, No. 7, Sep. 1993, pp. 1067-1075.
Varanasi et al., “Near-Optimum Detection in Synchronous Code-Division Multiple-Access Systems”, IEEE Transactions on Communications, vol. 39, No. 5, May 1991, pp. 725-739.
Divsalar et al., “Improved CDMA Performance Using Parallel Interference Cancellation”, MILCOM '94, Fort Monmouth, NJ, Oct. 1994.
Schneider, “Optimum Detection of Code Division Multiplexed Signals”, IEEE Transaction on Aerospace Electronics Systems, vol. AES-15, No. 1, Jan. 1979, pp. 181-185.
Lupas et al., “Linear Multiuser Detectors for Synchronous Code-Division Multiple-Access Channels”, IEEE Transactions on Information Theory, vol. 35, No. 1, Jan. 1989, pp. 123-136.
Lupas et al., “Near-Far Resistance of Multiuser Detectors in Asynchronous Channels”, IEEE Transactions on Communications, vol. 38, No. 4, Apr. 1990, pp. 496-508.
Zvonar et al., “Coherent and Differentially Coherent Multiuser Detectors For Asynchronous CDMA Frequency-Selective Channels”, Military Communications Conference 1992, Conference Record, ‘Communications—Fusing Command, Control and Intelligence’, IEEE MILCOM '92, pp. 442-446.
Xie et al., “A Family of Suboptimum Detectors for Coherent Multiuser Communications”, IEEE Journal Selected Areas in Communications, vol. 8, No. 4, May 1990, pp. 683-690.
Kajiwara et al., “Microcellular CDMA System with a Linear Multiuser Interference Canceller”, IEEE Journal on Selected Areas in Communications, vol. 12, No. 4, May 1994, pp. 1994.
Aazhang et al., “Neural Networks for Multiuser Detection in Code-Division Multiple Access Communications”, IEEE Transactions on Communications, vol. 40, No. 7, Jul. 1992, pp. 1212-1222.
Iltis et al., “An Adaptive Multiuser Detector with Joint Amplitude and Delay Estimation”, IEEE Journal on Selected Areas in Communications, vol. 12, No. 5, Jun. 1994, pp. 774-785.
Chen et al., “An Adaptive Multiuser Receiver for CDMA System”, IEEE Journal on Selected Areas in Communication, vol. 12, No. 5, Jun. 1994, pp. 808-816.
Duel-Wallen, “Decorrelating Decision-Feedback Multiuser Detector for Synchronous Code-Division Multiple-Access Channel”, IEEE Transactions on Communications, vol. 41, No. 2, Feb. 1993, pp. 285-290.
Wei et al., “Synchronous DS-SSMA System with Improved Decorrelating Decision-Feedback Multiuser Detection”, IEEE Transactions on Vehicular Technology, vol. 43, No. 3, Aug. 1994, pp. 767-772.
Jalloul et al., “Performance Analysis of DS/CDMA with Noncoherent M-ary Orthogonal Modulation in Multipath Fading Channels”, WINLAB, Dept. Of Electrical Engineering Rutgers The State University of New Jersey.
Patel et al., “Analysis of a Simple Successive Interference Cancellation Scheme in DS/CDMA System”, WINLAB, Dept. of Electrical Engineering Rutgers, The State University of New Jersey.
Kawabe et al., “Advanced CDMA Scheme Based on Interference Cancellation”.
Tachikawa, “Characteristics of M-ary/Spread Spectrum Multiple Access Communication Systems Using Co-Channel Interference Cancellation Techniques”.
S. Moshavi, E. Kanterakis, and D. Schilling, “Multistage Linear Receivers for DS-CDMA Systems,” (1994), (unpublished Ph.D. dissertation, City University of New York).
H.V. Poor and S. Verdu, “Single-User Detectors for Multiuser Channels,” IEEE Tans. Commun., vol. 36, No. 1, pp. 50-60, Jan. 1988.
A.M. Monk, M. Davis, L.B. Milstein, and C.W. Helstrom, “A Noise-Whitening Approach to Multiple Access Noise Rejection-Part I: Theory and Background,” IEEE J. Select. Areas Commun., vol. 12, No. 5, pp. 817-827, Jun. 1994.
M. Rupf, F. Tarkoy, and J.L. Massey, “User-Separating Demodulation for Code-Divisoin Multiple-Access Systems,” IEEE J. Select. Aras Commun., vol. 12, No. 5, pp. 786-795, Jun. 1994.
S. Verdu, “Minimum Probability of Error for Asynchronous Gaussian Multiple-Access Channels,” IEEE Trans. Inform. Theory, vol. IT-32, No. 1, pp. 85-96, Jan. 1986.
Z. Xie, C.K. Rushforth, and R
Kowalski John
Schilling Donald L.
Boakye Alexander O.
InterDigital Technologies Corporation
Volpe and Koenig P.C.
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