Wireless Communication system with feedback and method therefor

Details Wireless Communication system with feedback and method therefor Wireless Communication system with feedback and method therefor

2005-05-24

2005-05-24

Ghebretinsae, Temesghen (Department: 2637)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S221000

Reexamination Certificate

active

06898250

ABSTRACT:
A wireless communication system with feedback and a method therefore, wherein the wireless communication system, which has a plurality of transmitting antennas and a plurality of receiving antennas through which signals are transmitted and received, respectively, includes: a transmitter that restores feedback information from a predetermined feedback signal, weights an information signal with the restored feedback information, and converts the weighted information signal to a radio frequency signal in order to transmit the radio frequency signal; and a receiver that receives the radio frequency signal to estimate the state of a channel, through which the radio frequency signal is transmitted, calculates a weight of a dimensionality corresponding to the number of the transmitting antennas, approximates the weight as lower-dimensional one to extract feedback information, and converts the feedback information into a radio frequency signal to send the radio frequency signal to the transmitter.

REFERENCES:
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patent: 6636495 (2003-10-01), Tangemann
“Base station transmitting antenna arrays for multipath environments,” Gerlach et al., Signal Processing, Europrean Journal Devoted to the Methods and Applications of Signal Processing, Elsevier Science Publishers B.V. Amsterdam, NL, vol. 54, No. 1, Oct. 1, 1996, pp. 59-73.
3GPP, Technical Specification Group Radio Access Network, etc. 3GTS 25214 V3.0.0 (Oct. 1999) pp. 1-39.
IEE Journal on Select Areas in Comminications, vol. 16, No. 8, Oct. 1988, pp. 1451-1458.

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