Transmitter apparatus, communication system, and...

Details Transmitter apparatus, communication system, and... Transmitter apparatus, communication system, and...

2011-03-08

2011-03-08

Fan, Chieh M (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S259000

Reexamination Certificate

active

07903748

ABSTRACT:
A communication technology for allowing a mobile communication system to accommodate variable rate users, while obtaining a frequency diversity effect. A transmitter apparatus using, for transmission, transmission signals produced based on data symbols of a predetermined transmission method, comprising an FFT processing part for converting the data symbols to frequency domain data; an interleaver for sorting the frequency domain data; and an IFFT processing part for converting the sorted frequency domain data to a time domain signal; wherein the FFT processing part subjects Q received data symbols to Q-point FFT processing, the interleaver produces N data from Q data outputted from the FFT processing part (where N>Q), and the IFFT processing part subjects the N data outputted from the interleaver to N-point IFFT processing.

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Koichi Okada, Hiroyuki Uesugi, Shinya Hatayama, Makoto Itami, Koji Ito, “Data Henkan ni yoru OFDM Shingo no Ayamariritsu Tokusei no Kaizen”, ITE Technical Report, Feb. 20, 1997, vol. 21, No. 12, pp. 85 to 90.

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