The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2011
Filed:
Nov. 10, 2004
Seong-rag Kim, Daejeon, KR;
In-kyeong Choi, Daejeon, KR;
Dong-seung Kwon, Daejeon, KR;
Seung-ku Hwang, Seoul, KR;
Seong-Rag Kim, Daejeon, KR;
In-Kyeong Choi, Daejeon, KR;
Dong-Seung Kwon, Daejeon, KR;
Seung-Ku Hwang, Seoul, KR;
Electronics and Telecommunications Research Institute, , KR;
Samsung Electronics Co., Ltd., , KR;
KT Corporation, , KR;
SK Telecom Co., Ltd., , KR;
KTFreetel Co., Ltd., , KR;
Hanaro Telecom., Inc., , KR;
Abstract
A mobile station transmitting and receiving method and a corresponding mobile station transmitter and receiver of a smart antenna system for forming uplink eigenbeams of the OFDM/TDD (orthogonal frequency division multiplex/time division duplex), wherein OFDM symbols are received from a base station through a downlink via multiple antennas () and an FFT (fast Fourier transform) is performed on the received OFDM symbols by the FFT units (). By means of a channel estimator () the channels are estimated and a beam weight generator () generates respective beam weights from the channels of the respective pilot tones of the respective subcarriers according to the channel estimation result. A beam weight multiplier () forms the uplink beam by multiplying the respective beam weights with the output of the signal repeater () and IFFT units () generate respective OFDM symbols which are transmitted via multiple antennas () through an uplink.