Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2007-09-25
2007-09-25
Orgad, Edan (Department: 2616)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S334000
Reexamination Certificate
active
10204943
ABSTRACT:
The present invention provides a data transfer method for use in a CDMA system operating in the TDD mode. A data signal is transmitted in the form of a data stream of data bursts of different users between a first station and a second station via a multiplicity of antennas, and a reference signal is transmitted in connection with the specific data burst. In a first step, a reference signal is transmitted from the second station to the first station. In a second step, a channel estimation is performed in the first station based on the reference signal that is received from the second station. In a third step, the first station transmits a data burst to the second station via the multiplicity of antennas, it being possible to modify the transmission signals of various antennas having various amplitude and phase factors in accordance with the channel estimation.
REFERENCES:
patent: 5369670 (1994-11-01), Zagloul et al.
patent: 5615409 (1997-03-01), Forssen et al.
patent: 5886988 (1999-03-01), Yun et al.
patent: 6122260 (2000-09-01), Liu et al.
patent: 6124824 (2000-09-01), Xu et al.
patent: 6452917 (2002-09-01), Leung
patent: 6519478 (2003-02-01), Scherzer et al.
patent: 6615024 (2003-09-01), Boros et al.
patent: 6721299 (2004-04-01), Song
patent: 7020071 (2006-03-01), Mujtaba
patent: WO 98 27669 (1998-06-01), None
patent: WO 99 35764 (1999-07-01), None
J Goldberg et al.: “Downlink Beamforming For Cellular Mobile Communications” Phoenix, May 4-7, 1997, New York, IEEE, US, Bd. CONF.*
A Wittneben: “Analysis and Comparison of Optimal Predictive Transmitter Selection and Combining Diversity For Dect” Singapore, Nov. 14-16, 1995, New York, IEEE, US.*
K.D. Kammeyer: “Message Transmission, ” 2nd edition, Information Technology Series, Teubner, Stuttgart, 1996**.
A. Klein, G.K. Kaleh, and P.W. Baier, “Zero Forcing and Minimum Mean-Square-Error Equalization for Multiuser Detection in Code Division Multiple Access Channels,” IEEE Trans. Vehic. Tech., vol. 45 (1996), 276-287**.
Motorola: “Transmit Diversity Schemes Applied to the TDD mode (II),” 3GPP TSG RAN WGI document TSGR1#5(99)632**+, Jun. 1-4, 1999.
Motorola: “Transmit Diversity Schemes applied to the TDD mode,” 3GPP TSG RAN WGI document TSGR1#3(99)186**+, Mar. 22-26, 1999.
Motorola: “Transmit Diversity Schemes applied to the TDD mode (II),” 3GPP TSG RAN WGI document TSGR1#5(99)632, Jun. 1-4, 1999.
Motorola: “Transmit Diversity Schemes applied to the TDD mode,” 3GPP TSG RAN WGI document TSGR1#3(99)186, Mar. 22-26, 1999.
Baer Siegfried
Beckmann Mark
Hans Martin
Kowalewski Frank
Laumen Josef
Burrowes Lawrence J
Kenyon & Kenyon LLP
Orgad Edan
Robert & Bosch GmbH
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