Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-12-19
2006-12-19
Eng, George (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S101000, C455S025000, C455S063400, C455S272000, C342S377000, C370S317000
Reexamination Certificate
active
07151951
ABSTRACT:
In controlling a multi-beam antenna system for downlink wireless communication, beamforming and closed loop transmit diversity signaling are combined. Each beam signal is adjusted at the transmitter based on feedback from a wireless mobile communication station such that the signals received at the wireless mobile communication station can be coherently combined.
REFERENCES:
patent: 5434578 (1995-07-01), Stehlik
patent: 5634199 (1997-05-01), Gerlach et al.
patent: 6075484 (2000-06-01), Daniel et al.
patent: 6091788 (2000-07-01), Keskitalo et al.
patent: 6094165 (2000-07-01), Smith
patent: 6108323 (2000-08-01), Gray
patent: 6192256 (2001-02-01), Whinnett
patent: 6320540 (2001-11-01), Meredith
patent: 6480524 (2002-11-01), Smith et al.
patent: 6647276 (2003-11-01), Kuwahara et al.
patent: 6665545 (2003-12-01), Raleigh et al.
patent: 6694155 (2004-02-01), Chin et al.
patent: 6778507 (2004-08-01), Jalali
patent: 6788250 (2004-09-01), Howell
patent: 2002/0060993 (2002-05-01), Dent
patent: 2002/0093922 (2002-07-01), Grilli et al.
patent: 2002/0168974 (2002-11-01), Rosen et al.
patent: 2003/0142731 (2003-07-01), Bergel
patent: 2003/0231606 (2003-12-01), Wu et al.
patent: 0 999 658 (2000-05-01), None
patent: 0 999 658 (2000-10-01), None
patent: 01 69814 (2001-09-01), None
patent: WO 01/69814 (2001-09-01), None
Anderson, et al., Adaptive Antennas for GSM and TDMA Systems, IEEE Personal Communications, vol. 6, pp. 74-86, Jun. 1999.
Goransson, et al., Adaptive Antennas in WCDMA Systems—Link Level Simulation Results Based on Typical User Scenarios, IEEE VTC 2000 Fall, pp. 157-164, vol. 1.
Soni, et al., Transmit Beamforming Combined With Diversity Techniques for CDMA 2000 Systems, IEEE ICASSP 2001, pp. 1029-1032.
Pedersen, et al., A Simple Downlink Antenna Array Algorithm Based on a Hybrid Scheme of Transmit Diversity and Conventional Beamforing, IEEE VTC 2001, pp.58-62.
Katz, et al., Extension of Space-Time Coding to Beamforming WCDMA Base Stations, IEEE VTC 2000 Spring, pp. 1230-1234, vol. 2.
Hottinen, et al., Closed-loop Transmit Diversity Techniques for Multi-Element Transceivers, IEEE VTC 2000 Fall, pp. 70-73, vol. 1.
Enhance the Beamforming Feature of the Multiple Antenna Tx Diversity, TSGR1#15(00)-1065, Aug. 22-25, 2000 (8 pages).
Description of the Eigenbeamformer Concept (update) and Performance Evaluation, TSGR1#19(01)-0203, Feb.27-Mar. 2, 2001 (9 pages).
Derek Gerlach et al., “Base Station Transmitter Antenna Arrays with Mobile to Base Feedback”, 1993 IEEE, 5 pgs.
Gerlach D, et al., “Base Station Transmitter Antenna Arrays with Mobile to Base Feedback”, Signals, Systems and Computers, 1993, 1993 Conference Record of the Twenty-Seventh Asilomar Conference on Pacific Grove, CA, USA Nov. 1-3, 1993, Los Alamitos, CA, USA, IEEE Comput. Soc., Nov. 1, 1993, pp. 1432-1436, XP010096455, ISBN: 0-8186-4120-7.
Goransson Bo
Hagerman Bo
Logothetis Andrew
Burleigh Roger S.
Doan Kiet
Eng George
Telefonktiebolaget LM Ericsson (publ)
LandOfFree
Using beamforming and closed loop transmit diversity in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Using beamforming and closed loop transmit diversity in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using beamforming and closed loop transmit diversity in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3680675