Title:
帰還機能を持つ無線受信装置及び無線通信方法
Document Type and Number:
Japanese Patent JP4608124
Kind Code:
B2
Abstract:
A wireless communication system with feedback and a method therefor are provided. The wireless communication system, which has a plurality of transmitting antennas (120, 180) and a plurality of receiving antennas (140, 160) through which signals are transmitted and received, respectively, includes: a transmitter (100) 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 (150) 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.(100) Thus, the amount of feedback information is reduced in a communication system with feedback having multiple transmitting/receiving antennas, thereby using a channel required for the feedback more effectively and reducing a delay time caused by the feedback.
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Inventors:
Lee Gwang
Yellow aerial
Yellow aerial
Application Number:
JP2001108412A
Publication Date:
January 05, 2011
Filing Date:
April 06, 2001
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO.,LTD.
International Classes:
H04B7/08; H04B7/06; H04J99/00
Foreign References:
| US5634199 | ||||
| WO2000001078A1 |
Attorney, Agent or Firm:
Isono Dozo