Radio communication apparatus and radio communication method

Telecommunications – Carrier wave repeater or relay system – With frequency conversion

Reexamination Certificate

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C455S063100, C455S065000, C455S067110

Reexamination Certificate

active

07869760

ABSTRACT:
A radio communication device capable of lightening the influence of a frequency selective fading in the wide-band transmission of a single carrier thereby to prevent deterioration of error rate characteristics. In this device, an FFT unit (13) subjects a modulated signal inputted from a modulation unit (12) to a Fourier transformation. A pilot insertion unit (14) inserts a pilot symbol into a plurality of individual frequency components (1-N) of the modulated signal. Weight multiplication units (15-1, 15-2) multiply the individual frequency components (1-N) and the pilot symbols inserted into the individual frequency components (1-N), by weight coefficients (W11-W1N, W21-W2N) set at a weight coefficient setting unit (54). IFFT units (16-1, 16-2) subject the frequency components (1-N) to an inverse Fourier transformation, thereby to convert the frequency components (1-N) into time domains.

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patent: 7392015 (2008-06-01), Farlow et al.
patent: 2000 332723 (2000-11-01), None
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H. Gacanin, et al., “Shuhasu Ryoiki Toka O Mochiiru Ippanka OFDM—Generalized OFDM with Frequency-domain Equalization,” Technical Report of IEICE, MW2003-252, vol. 103, No. 686, Mar. 2004, pp. 19-24.
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