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.

Date of Patent:
Jan. 21, 2025

Filed:

Feb. 27, 2020
Applicant:

Nippon Telegraph and Telephone Corporation, Tokyo, JP;

Inventors:

Daisuke Goto, Musashino, JP;

Fumihiro Yamashita, Musashino, JP;

Kiyohiko Itokawa, Musashino, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 11/00 (2006.01); H04B 7/0413 (2017.01); H04J 3/06 (2006.01); H04L 25/02 (2006.01); H04L 27/26 (2006.01); H04W 56/00 (2009.01); H04W 72/04 (2023.01);
U.S. Cl.
CPC ...
H04W 56/001 (2013.01); H04B 7/0413 (2013.01); H04L 25/0204 (2013.01);
Abstract

A plurality of control signals transmitted in individual frequency bands by a moving transmission station via a plurality of transmission antennas and a plurality of data signals transmitted in a common frequency band by the transmission station via the plurality of transmission antennas in synchronization with the control signals are received by each of a plurality of antennas disposed at different positions. Based on symbol timings of the control signals received by the antenna, a sampling rate error between the plurality of control signals transmitted by the plurality of transmission antennas, respectively, is compensated for. Based on the control signals subjected to the sampling rate error compensation, frame timings of the plurality of data signals transmitted by the transmission station via the plurality of transmission antennas are synchronized. Based on the control signals subjected to the sampling rate error compensation, channels for the plurality of data signals transmitted by the transmission station via the plurality of transmission antennas are estimated. The plurality of data signals with the frame timings synchronized, for the estimated channels are equalized.


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