Title:
DATA TRANSMISSION METHOD AND DATA TRANSMISSION DEVICE
Document Type and Number:
Japanese Patent JP3396815
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a data transmission method and a data transmission device, that stably transmit data by a multi-carrier system by being subjected to a two-dimensional interleave.
SOLUTION: The data transmission method and the data transmission device adopting the multi-carrier system are configured such that a time/frequency interleave section 6 is placed between first and second high-speed inverse Fourier transform sections (IFFT) 4, 8 at a transmitter side to apply two-dimensional interleaving of time base and frequency base to data and the transmitter side transmits the resulting data, and a time/frequency inverse interleave section 28 is placed between first and second high-speed Fourier transform sections (FFT) 25, 30 at a receiver side to provide a uniform noise characteristic to an ununiform noise characteristic generated in the line with respect to the time base and the frequency base thereby realizing secure data transmission.
Inventors:
Hisashi Kaku
Kyoko Hirao
Kyoko Hirao
Application Number:
JP2001186274A
Publication Date:
April 14, 2003
Filing Date:
June 20, 2001
Export Citation:
Assignee:
富士通株式会社
International Classes:
H04J11/00; H04L27/26; H04L1/00; (IPC1-7): H04J11/00
Domestic Patent References:
| JP10247889A | ||||
| JP1075227A |
Other References:
【文献】国際公開00/54445(WO,A1)
Attorney, Agent or Firm:
Kiyoshi Manabe (3 people outside)