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:
Feb. 24, 2026
Filed:
Jun. 01, 2023
Nec Corporation, Tokyo, JP;
Norifumi Kamiya, Tokyo, JP;
Mamoru Sawahashi, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
In a radio transmission device, an orthogonal frequency division multiplexing (OFDM) signal forming unit forms an OFDM signal by arranging pilot signals according to a pilot arrangement pattern. According to the pilot arrangement pattern, among a plurality of pilot arrangement subcarriers with an N-subcarrier interval, in a plurality of first pilot arrangement subcarriers with an N-subcarrier interval, pilot signals for phase noise estimation are arranged in all resource elements. An information symbol and a pilot symbol are mapped to different resource elements. Among the plurality of pilot arrangement subcarriers with the N-subcarrier interval, in a plurality of second pilot arrangement subcarriers excluding the plurality of first pilot arrangement subcarriers, the pilot signals for phase noise estimation are arranged in a cycle of Nresource elements in the time domain.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile