Title:
METHOD AND DEVICE FOR OFDM TRANSMISSION AND OFDM RECEPTION EQUIPMENT
Document Type and Number:
Japanese Patent JP3514811
Kind Code:
B2
Abstract:
PURPOSE: To suppress the degradation of a demodulated symbol due to multipath.
CONSTITUTION: A null symbol is transmitted in the first time slot of a transmission frame, and a reference symbol is transmitted in the second time slot, and the reference symbol is transmitted in the third time slot. Information symbols are transmitted in fourth and following time slots. Waveforms of two adjacent reference symbols are made continuous to equivalently extend the guard period, thus suppressing the influence of inter-code interference due to multipath.
Inventors:
Seki, Takashi
Ishikawa, Tatsuya
Ishikawa, Tatsuya
Application Number:
JP8788594A
Publication Date:
March 31, 2004
Filing Date:
March 31, 1994
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
H04L27/34; H04J11/00; H04L27/26; (IPC1-7): H04J11/00; H04L27/34
Attorney, Agent or Firm:
伊藤 進
Previous Patent: RESISTOR NONLINEAR IN VOLTAGE AND ITS MANUFACTURE
Next Patent: ENERGY ABSORBING TYPE STEERING COLUMN
Next Patent: ENERGY ABSORBING TYPE STEERING COLUMN