Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2006-03-15
2010-06-08
Payne, David C (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S260000, C375S343000, C375S152000, C375S150000, C375S143000
Reexamination Certificate
active
07733989
ABSTRACT:
Channel estimation is performed using side information. A signal transmitted over a radio channel includes side information corresponding to a first predetermined signal and a second predetermined signal. The first predetermined signal is different from the second predetermined signal. An estimate of the radio channel is determined using both the first predetermined signal and the second predetermined signal. Using multiple sources of side information improves the accuracy and the efficiency of the channel estimation. One example application is Orthogonal Frequency Division Multiplexing based communications systems.
REFERENCES:
patent: 7463691 (2008-12-01), Tao et al.
patent: 7471932 (2008-12-01), Wu et al.
patent: 2004/0125863 (2004-07-01), Ghosh
patent: 2005/0141626 (2005-06-01), Lee et al.
patent: 2 247 812 (1992-11-01), None
Meng-Han Hsieh et al. “channel estimation for OFDM systems based on comb-type pilot arrangement in frequency selective fading channels”, Feb. 1998, IEEE transactions on consumer electronics, vol. 44 issue 1, pp. 217-225.
Edfors et al.,Analysis of DFT-Based Channel Estimators for OFDM, Wireless Personal Communications, 12, pp. 55-70, 2000.
Yang et al.,Analysis of Low-Complexity Windowed DFT-Based MMSE Channel Estimator for OFDM Systems, IEEE Transactions on Communications, vol. 49, No. 11, Nov. 2001, pp. 1977-1987.
Meng-Han Hsieh et al., “Channel Estimation for OFDM systems based on comb-type pilot arrangement in frequency selective fading channels”, Feb. 1, 1998 IEEE Transactions on Consumer Electronics, vol. 44, Issue 1, pp. 217-225.
Andersson, T. W., An Introduction to Multivariate Statistical Analysis, Third Edition, Wiley, 2003; see pp. 33-34.
Wei Wu et al. “Optimal Channel Estimation for Capacity Maximization in OFDM Systems”.
Ove Edfors et al. “OFDM Channel Estimation by Singular Value Decomposition”; In IEEE Transactions on Communications, vol. 46 No. 7, pp. 931-939, Jul. 1998.
Sinem Coleri et al. “Channel Estimation Techniques Based on Pilot Arrangement in OFDM Systems”; IEEE Transactions on Broadcasting, vol. 48, No. 3, Sep. 2002.
Rohit Negi and John Cioffi; “Pilot Tone Selection for Channel Estimation in a Mobile OFDM System”; IEEE Transactions on Consumer Electronics, vol. 44, No. 3, Aug. 1998.
Wei Wu et al. Wireless Communication Project (EE381K-11) Technical Report Optimal Channel Estimation for Capacity Maximization in OFDM Systems; pp. 1-24; May 6, 2003.
International Preliminary Report on Patentability for International Application No. PCT/SE2006/050480 dated May 9, 2008.
Guarino Rahel
Nixon & Vanderhye P.C.
Payne David C
Telefonaktiebolaget LM Ericsson (publ)
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