Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2007-01-23
2007-01-23
Tran, Khai (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S148000, C455S069000
Reexamination Certificate
active
10054543
ABSTRACT:
A method and apparatus for achieving combined beamforming and transmit diversity for frequency selective fading channels in a communication system having a base station with multiple transmit antennae and a mobile terminal with at least a single receive antenna, the method comprising the steps of: providing a signal to be transmitted; space-time encoding the signal to produce at least two separate signals, each on a respective output; feeding each output signal to a multiple access transmit processor to produce an output signal; applying respective selected transmit beamforming weights to each output signal; feeding the respective weighted signals to a signal combiner to perform a summing function of the signals and produce a signal for transmission; feeding the summed signal to each of the multiple transmit antennae for transmission; transmitting the signals over respective physical channels; receiving the transmitted signal at at least a single receive antenna; feeding the transmitted signal to a multiple access receive processor to produce an output signal; and space-time decoding the received signal.
REFERENCES:
patent: 5642353 (1997-06-01), Roy et al.
patent: 5828658 (1998-10-01), Ottersten et al.
patent: 6351499 (2002-02-01), Paulraj et al.
patent: 6650881 (2003-11-01), Dogan
patent: 6754286 (2004-06-01), Hottinen et al.
patent: 6839379 (2005-01-01), Horng et al.
patent: 2003/0026349 (2003-02-01), Onggosanusi et al.
patent: 2003/0035490 (2003-02-01), Gollamudi
patent: 2004/0147227 (2004-07-01), Hamalainen et al.
Pre-equalization technique for interference cancellation in the UMTS-TDD downlink channel;Morgado, A.; Pinho, P.; Gameiro, A.; Fernandes, J.;Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th , vol. 2, 7-11;2001 pp. 878-881.
Sampath, H.; Bolcskei, H.; Paulraj, A.J.;Vehicular Technology Conference, 2000. IEEE VTS-Fall VTC 2000. 52nd , vol. 3, Sep. 24-28, 2000;pp. 1175-1178 vol. 3.
Chin Francois Po Shin
Liang Ying-Chang
ipsolon llp
National Univ. of Singapore
Tran Khai
Ware Cicely
LandOfFree
Wireless communication apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wireless communication apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wireless communication apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3808701