TRANSMISSION DEVICE, RECEPTION DEVICE, COMMUNICATION SYSTEM, TRANSMITTING METHOD AND RECEIVING METHOD

Title:

TRANSMISSION DEVICE, RECEPTION DEVICE, COMMUNICATION SYSTEM, TRANSMITTING METHOD AND RECEIVING METHOD

Document Type and Number:

Japanese Patent JP2009253548

Kind Code:

A

Abstract:

To obtain desired transmission quality by sufficiently correcting errors in data regardless of large time variation of phasing in a communication system of an HARQ-applied multi-carrier transmission system.

The transmission device 100 applied to the communication system performing automatic retransmission control between the transmission device and a reception device includes a subcarrier interval setting section 111 for setting intervals of subcarriers used upon transmission of a retransmission signal more widely than those of the subcarriers used upon transmission of an initial transmission signal, an IFFT section 112 for performing IFFT (Inverse Fast Fourier Transform) on an input signal based on the intervals of subcarriers set by the subcarrier interval setting section 111 and a transmission section 102 for transmitting the initial transmission signal and at least one retransmission signal.

Inventors:

YOSHIMOTO TAKASHI
YAMADA RYOTA
SHISAWA TOSHIYUKI
OKAMOTO NAOKI

Application Number:

JP2008097464A

Publication Date:

October 29, 2009

Filing Date:

April 03, 2008

Export Citation:

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Assignee:

SHARP KK

International Classes:

H04J11/00; H04L1/18; H04W28/04; H04W72/04

Domestic Patent References:

JP2004104574A	2004-04-02
JP2007159066A	2007-06-21
JPH1022973A	1998-01-23

Foreign References:

WO2007099853A1

2007-09-07

Attorney, Agent or Firm:

Takeo Fukuchi
Yoichi Shirakawa

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