Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2005-03-02
2010-11-30
Bocure, Tesfaldet (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C455S101000
Reexamination Certificate
active
07844010
ABSTRACT:
A method includes receiving at least two space-time coded signals from an antenna system associated with a first station, determining complex channel state information based on the received space-time coded signals, and sending the complex channel state information to the first station. In an alternative embodiment, a method includes transmitting at least two space-time coded signals in respective beams of a multi-beam antenna array, measuring a channel impulse response for each space-time coded signal at a second station, and sending an indicia of a selected set of least attenuated signals from the second station to the first station. The multi-beam antenna array is associated with a first station. The beams transmit a signature code embedded in each respective space-time coded signal, and the signature codes are orthogonal so that the second station can separate and measure the channel impulse response corresponding to each space-time coded signal.
REFERENCES:
patent: 5274844 (1993-12-01), Harrison et al.
patent: 5613219 (1997-03-01), Vogel et al.
patent: 5825807 (1998-10-01), Dumar
patent: 5848103 (1998-12-01), Weerackody
patent: 5856804 (1999-01-01), Turcotte et al.
patent: 5936569 (1999-08-01), Ståhle et al.
patent: 5999826 (1999-12-01), Whinnett
patent: 6067290 (2000-05-01), Paulraj et al.
patent: 6128330 (2000-10-01), Schilling
patent: 6131016 (2000-10-01), Greenstein et al.
patent: 6185440 (2001-02-01), Barratt et al.
patent: 6198775 (2001-03-01), Khayrallah et al.
patent: 6232921 (2001-05-01), Aiken et al.
patent: 6298035 (2001-10-01), Heiskala
patent: 6307882 (2001-10-01), Marzetta
patent: 6314305 (2001-11-01), Solondz et al.
patent: 6317411 (2001-11-01), Whinnett et al.
patent: 6348389 (2002-02-01), Chou et al.
patent: 6351499 (2002-02-01), Paulraj et al.
patent: 8351499 (2002-02-01), Paulraj et al.
patent: 6377632 (2002-04-01), Paulraj et al.
patent: 6377819 (2002-04-01), Gesbert et al.
patent: 6385181 (2002-05-01), Tsutsui et al.
patent: 6400780 (2002-06-01), Rashid-Farrokhi et al.
patent: 6438389 (2002-08-01), Sandhu et al.
patent: 6473393 (2002-10-01), Ariyavisitakul et al.
patent: 6501803 (2002-12-01), Alamouti et al.
patent: 6515978 (2003-02-01), Buehrer et al.
patent: 6542556 (2003-04-01), Kuchi et al.
patent: 6542736 (2003-04-01), Parkvall et al.
patent: 6546236 (2003-04-01), Canada et al.
patent: 6549544 (2003-04-01), Kroeger et al.
patent: 6584302 (2003-06-01), Hottinen et al.
patent: 6584593 (2003-06-01), Seshadri et al.
patent: 6594473 (2003-07-01), Dabak et al.
patent: 6615024 (2003-09-01), Boros et al.
patent: 6621877 (2003-09-01), Arviv et al.
patent: 6724828 (2004-04-01), Dabak
patent: 6778507 (2004-08-01), Jalali
patent: 6788661 (2004-09-01), Ylitalo et al.
patent: 6977910 (2005-12-01), Hosur et al.
patent: 7139324 (2006-11-01), Ylitalo et al.
patent: 7200368 (2007-04-01), Hottinen et al.
patent: 7403748 (2008-07-01), Keskitalo et al.
patent: 2003/0228850 (2003-12-01), Hwang
patent: 2004/0116077 (2004-06-01), Lee et al.
patent: 2005/0037718 (2005-02-01), Kim et al.
patent: 2005/0157683 (2005-07-01), Ylitalo et al.
patent: 2006/0234789 (2006-10-01), Tarokh et al.
patent: 0795970 (1997-09-01), None
patent: 0969610 (2000-01-01), None
patent: 1003297 (2000-05-01), None
Heath, R.W., Jr.; Paulraj, A.; Multiple Antenna Arrays for Transmitter Diversity and Space-Time Coding; Jun. 6-10, 1999, Communications, 1999. ICC '99. 1999 IEEE International Conference on, vol. 1, pp. 36-40.
3G TS 25.214 , Mar. 2000, v3.2.0, pp. 27-31.
Von Ramm, Olaf T. and Smith, Stephen W., “Beam Steering with Linear Arrays,” IEEE Transactions on Biomedical Engineering, Aug. 1983, pp. 438-452, vol. BME-30, No. 8.
Katz, Marcos and Ylitalo, Juha, “Beamspace-Time Coding Method for Downlink Performance Enhancement of CDMA Micro/Pico-cell Base Stations,” Proceedings of Finnish Signal Processing Symposium, University of Oulu, Finland, May 31, 1999, pp. 25-29.
“3GPP RAN S1.14 V2.0.0, UTRA FDD; Physical layer procedures”, Apr. 1999, pp. 1-32.
Wichman, et al: Paper entitled: “Transmit Diversity in the WCDMA System”, International Journal of Wireless Information Networks, vol. 6, No. 3, 1999, pp. 171-180.
Jongren, et al: Paper entitled: Combining Transmit Antenna Weights and Orthogonal Space-Time Block Codes by Utilizing Side Information, Signals, Systems, and Computers, IEEE, 1999, pp. 1562-1566.
Heath, Jr., et al: Paper entitled: “Multiple Antenna Arrays for Transmitter Diversity and Space-Time Coding”, 1999, IEEE, pp. 36-40.
Hottinen, et al: Paper entitled: “Transmit Diversity Using Filtered Feedback Weights in the FDD/WCDMA System”, IEEE, Feb. 15, 2000, pp. 15-21.
Katz et al., “Extension of Space-Time Coding to Beam-forming WCDMA Base Stations”, Vehicular Technology Conference Proceedings, V. 2, May 15, 2000, Tokyo, Japan, pp. 1230-1234, XP000968066.
Rhee, Sang-Bin, “Vehicle Location in Angular Sectors Based on Signal Strength”,IEEE Trans. Veh. Technol., V. VT-27 (Nov. 1978), pp. 244-258.
International Search Report for PCT/IB2001/00967 mailed on Jun. 21, 2002.
Notice of Allowance for U.S. Appl. No. 11/068,856 mailed Jan. 13, 2010.
Notice of Allowance for U.S. Appl. No. 11/068,856 mailed Feb. 23, 2010.
Office Action for U.S. Appl. No. 11/068,856, mailed Sep. 17, 2009.
Official Action from Canadian Patent Office for Canadian Application 2,526,118, dated Mar. 11, 2009.
Official Action from Canadian Patent Office for Canadian Application 2,525,146 dated Mar. 11, 2009.
Katz Marcos
Ylitalo Juha
Bocure Tesfaldet
Williams Lawrence B
LandOfFree
Closed loop feedback system for improved down link performance does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Closed loop feedback system for improved down link performance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closed loop feedback system for improved down link performance will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4219900