Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2005-03-01
2009-06-30
Pérez-Gutiérrez, Rafael (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C455S562100
Reexamination Certificate
active
07554944
ABSTRACT:
Method and apparatus of data transmission in a cellular communication system which can increase the efficiency of the information signal transmission in the downlink and, thus, maximize the information signal reception quality at the mobile station. The solution can also reduce the feedback channel (from mobile to base station) load. The apparatus operates along with the base station and provides M diversity groups of transmission channels, each group having K transmission channels. Each group of transmission channels is an independent adaptive antenna array with multiple antenna elements, each connected with the respective signal control components, which can ensure correction of the spectrum of the transmitted information signal copies, transmitting the information signal copies from each adaptive antenna array in each efficient transmission direction for transmit diversity, a combination of these two estimates and estimation of efficient transmission directions in the downlink using the received feedback signal.
REFERENCES:
patent: 4933952 (1990-06-01), Albrieux et al.
patent: 5539832 (1996-07-01), Weinstein et al.
patent: 6907270 (2005-06-01), Blanz
patent: 6952459 (2005-10-01), Voyer
patent: 2003/0020651 (2003-01-01), Crilly et al.
patent: 2003/0036359 (2003-02-01), Dent et al.
patent: 2005/0117660 (2005-06-01), Vialle et al.
patent: 2 145 152 (2000-01-01), None
patent: 2 192 094 (2002-10-01), None
patent: 2 208 911 (2003-07-01), None
patent: 92/00639 (1992-01-01), None
patent: 99/07090 (1999-02-01), None
patent: 99/63692 (1999-12-01), None
English Translation of RU 2 192 094 dated Oct. 27, 2002.
Baskakov, S. I. “Radio Circuits and Signals”Moscow “Vysshaya Skola” (1988) Second Edition, pp. 211-212.
Kostie, Z. et al. “Estimation of the Parameters of a Multipath Channel Using Set-Theoretic Deconvolution”IEEE Transactions on Communications(1992) vol. 40, No. 6, pp. 1006-1011.
Gonorovsky, I. S. “Radio Circuits and Signals”Moscow “Soviet Radio” (1977) Third Edition, p. 177.
Ehrenberg, J. E. et al. “Signal-Processing Techniques for Resolving Individual Pulses in a Multipath Signal”Journal Acoustical Society of America(1978) vol. 63, No. 6, pp. 1861-1865.
Fujitsu “Enhance the Beamfoming Feature of the Mutliple Antenna Tx Diversity”TSG-RAN(2000) 1065, Working Group 1, No. 15, pp. 1-8.
Siemens “Advanced Closed Loop Tx Diversity Concept (eigenbeamformer)”TSG-RAN(2000) 0853, Working Group 1, No. 14, pp. 1-12.
Hewitt, A. et al. “An Autoregressive Approach to the Identification of Multipath Ray Parameters from Field Measurements”IEEE Transactions on Communications(1989) vol. 37, No. 11, pp. 1136-1143.
Liberti, J. C. et al. “Smart Antennas for Wireless Communications—IS-95 and Third Generation CDMA Applications”Prentice Hall PTR(1999) Chapter 3, pp. 81-116.
Dighe, P. A. et al. “Analysis of Transmit-Receive Diversity in Rayleigh Fading”IEEE Transactions on Communications(2003) vol. 51, No. 4, pp. 694-703.
Jakes, J.C. “Microwave Mobile Communications”IEEE Communications Society(1974) pp. 312-317.
Luo, J. et al. “Error Probability Performance for W-CDMA Systems with Multiple Transmit and Receive Antennas in Correlated Nakagami Fading Channels”IEEE Transactions on Vehicular Technology(2002) vol. 51, No. 6, pp. 1502-1516.
Filin Stanislav Anatolievich
Garmonov Alexandr Vasilievich
Savinkov Andrew Yurievich
Avage Inc.
Donado Frank
Ladas & Parry LLP
Perez-Gutierrez Rafael
LandOfFree
Signal transmitting method and device for carrying out said... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal transmitting method and device for carrying out said..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal transmitting method and device for carrying out said... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4144505