Patent · US Active

Radio communication system, transmission device, reception device, radio communication method, transmission method, reception method

US8644766B2 · kind B2 · utility

1Cited by
3References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 21, 2009
Grant dateFeb 4, 2014
Priority date
Expiry dateMay 22, 2031

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L2027/0095
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A radio communication system includes a transmission device which transmits a plurality of radio signals, and a reception device which receives the plurality of radio signals from the transmission device and estimates, as a carrier frequency offset, a difference between a carrier frequency transmitted by the transmission device and a reference reception frequency used for reception. The system includes the transmission device which branches a first previously determined sequence of training signals, and transmits the radio signals modulated with frequencies by the carrier frequency offsets having regularity for a first sequence of a plurality of branched training signals, and the reception device which estimates the carrier frequency offset with the transmission device according to the first sequence of training signals included in the radio signals transmitted from the transmission device and phase shift amounts obtained from the first previously determined sequence of training signals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.