The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2015
Filed:
Nov. 06, 2012
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Daisuke Ogawa, Yokosuka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A communication system, etc. are provided that can prevent the accuracy of propagation channel estimation from degrading when performing radio communications based on orthogonal frequency division multiplexing (OFDM) by using a plurality of carriers each with a predetermined bandwidth. Radio communications based on an OFDM scheme are performed between a transmitter and a receiver by using a carrier with a prescribed bandwidth in which first signals such as reference signals, for example, are arranged at constant subcarrier intervals. The transmitter, when performing communications with the receiver by using a plurality of such carriers, transmits to the receiver an OFDM signal in which the first signals are arranged at predetermined subcarrier intervals across the plurality of carriers. The receiver extracts the first signals from the OFDM signal received from the transmitter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile