07889805 is referenced by 2 patents and cites 10 patents.

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 (250) and an FFT (fast Fourier transform) is performed on the received OFDM symbols by the FFT units (270). By means of a channel estimator (290) the channels are estimated and a beam weight generator (310) 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 (230) forms the uplink beam by multiplying the respective beam weights with the output of the signal repeater (220) and IFFT units (240) generate respective OFDM symbols which are transmitted via multiple antennas (250) through an uplink.

Title
Smart antenna system and method thereof for forming uplink eigenbeam of OFDM/TDD
Application Number
11/579722
Publication Number
7889805 (B2)
Application Date
November 10, 2004
Publication Date
February 15, 2011
Inventor
Seung Ku Hwang
Seoul
KR
Dong Seung Kwon
Daejeon
KR
In Kyeong Choi
Daejeon
KR
Seong Rag Kim
Daejeon
KR
Agent
The Farrell Law Firm
Assignee
Hanaro Telecom
KR
KTFreetel
KR
SK Telecom
KR
KT Corporation
KR
Samsung Electronics
KR
Electronics and Telecommunications Research Institute
KR
IPC
H04B 7/02
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