Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-07-18
2006-07-18
Appiah, Charles (Department: 2686)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S277100, C455S278100, C455S279100, C455S303000, C370S342000, C370S335000, C342S378000, C342S164000, C342S164000, C342S164000
Reexamination Certificate
active
07079867
ABSTRACT:
There is provided a transmit antenna array device with at least two antennas and a method thereof in which a transmission beam is appropriately formed based on a weight vector to be transmitted to a specific mobile station in a mobile communication system. For this purpose, a base station device has a reverse processor for processing a reverse signal received through the antenna array, a forward fading information extraction unit for extracting forward fading information from the received reverse signal, a beam formation controller for generating a weight vector for formation of a transmission beam using the forward fading information and the received reverse signal, and a forward processor having a transmission beam generator for generating a transmission beam for a transmission message based on the weight vector. A mobile station device has a forward processor for processing a received forward signal, a forward fading estimator for estimating forward fading information of the forward signal for each path, a forwarding fading encoder for combining the estimated forward fading information and encoding the combined forward fading information, and a reverse processor for multiplexing the encoded forward fading information with a transmission message and feeding back the forward fading information in the multiplexed signal to a base station.
REFERENCES:
patent: 5982327 (1999-11-01), Vook et al.
patent: 6101399 (2000-08-01), Raleigh et al.
patent: 6192256 (2001-02-01), Whinnett
patent: 6219561 (2001-04-01), Raleigh
patent: 6240098 (2001-05-01), Thibault et al.
patent: 6373433 (2002-04-01), Espax et al.
patent: 6411257 (2002-06-01), Sorelius et al.
patent: 6421007 (2002-07-01), Owen et al.
patent: 6463303 (2002-10-01), Zhao
patent: 6477161 (2002-11-01), Hudson et al.
patent: 6590532 (2003-07-01), Ogawa et al.
patent: 6597678 (2003-07-01), Kuwahara et al.
patent: 6600776 (2003-07-01), Alamouti et al.
patent: 6650911 (2003-11-01), Kang et al.
patent: 6658261 (2003-12-01), Winters et al.
patent: 6765969 (2004-07-01), Vook et al.
patent: 2003/0050016 (2003-03-01), Boros et al.
patent: 2003/0072382 (2003-04-01), Raleigh et al.
patent: WO00/79702 (2000-12-01), None
G.G.Raleigh and V.K. Johnes, “Adaptive Antenna Transmission for Frequency Duplex Digital Wireless Communication”, in Proc. IEEE ICC, pp. 641-646, Montreal, Canada, Jun. 1997.
J.S. Thomoson, J.E. Hudson, P.N. Grant and B. Mulgrew, “CDMA Downlink Beamforming for Frequency Selective Cahnnels”, PIMRC '99, B2-3, Osaka, Japan, Sep. 1999.
Choi Jin-Ho
Chun Byung-Jin
Appiah Charles
Dilworth & Barrese LLP
Iqbal Khawar
Samsung Electronics Co,. Ltd.
LandOfFree
Semi-blind transmit antenna array device using feedback... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semi-blind transmit antenna array device using feedback..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semi-blind transmit antenna array device using feedback... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3548167