Radio transmitting apparatus and radio receiving apparatus

Details Radio transmitting apparatus and radio receiving apparatus Radio transmitting apparatus and radio receiving apparatus

2007-08-13

2010-11-30

Kim, Kevin Y (Department: 2611)

Pulse or digital communications

Transmitters

Plural diversity

Reexamination Certificate

active

07844016

ABSTRACT:
A radio transmitting apparatus includes a calibration reference signal generator for generating a calibration reference signal for each of the subcarriers to be calibrated, a subcarrier modulator for modulating the calibration reference signal with the subcarrier, a radio transmitter for frequency-converting a baseband signal, which is the modulated signal, into a transmission signal in a radio frequency band, a radio receiver for frequency-converting the transmission signal in the radio frequency band supplied from the radio transmitter, into a baseband signal, a calibration coefficient measurer for calculating a calibration coefficient from the baseband signal output from the radio receiver, and a calibration coefficient multiplier for multiplying a transmission signal for each of the subcarriers and each of the antenna elements, by the calculated calibration coefficient.

REFERENCES:
patent: 2006/0111050 (2006-05-01), Choi et al.
patent: 10-215235 (1998-08-01), None
patent: 2004-153498 (2004-05-01), None
patent: 2005-348235 (2005-12-01), None
patent: 2005-348236 (2005-12-01), None

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