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:
Aug. 04, 2020

Filed:

Jan. 22, 2019
Applicants:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki-shi, JP;

Inventors:

Toshihiro Tango, Kawasaki, JP;

Katsumi Kusama, Minato-ku, JP;

Yasutaka Iida, Minato-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/14 (2006.01); H04L 27/26 (2006.01); H04W 24/02 (2009.01); H04L 5/14 (2006.01); H04B 7/155 (2006.01);
U.S. Cl.
CPC ...
H04B 7/14 (2013.01); H04B 7/15542 (2013.01); H04L 5/14 (2013.01); H04L 27/2605 (2013.01); H04L 27/2666 (2013.01); H04L 27/2678 (2013.01); H04W 24/02 (2013.01);
Abstract

According to an embodiment, a communication repeater device includes storage and a controller which detects, upon receiving a radio frame including pairs of orthogonal frequency division multiplexing symbols and cyclic prefixes from the radio base station, switching timing between uplink and downlink according to similarity between certain sections of an original radio frame and a time-shifted radio frame. The controller estimates the subsequent switching timing between the uplink and the downlink from the detected switching timing and frame information stored in the storage.


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