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:
Nov. 01, 2022

Filed:

Sep. 09, 2016
Applicant:

Ntt Docomo, Inc., Tokyo, JP;

Inventors:

Hiroki Harada, Tokyo, JP;

Satoshi Nagata, Tokyo, JP;

Jing Wang, Beijing, CN;

Liu Liu, Beijing, CN;

Huiling Jiang, Beijing, CN;

Assignee:

NTT DOCOMO, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 74/08 (2009.01); H04W 72/04 (2009.01); H04W 72/12 (2009.01); H04W 16/14 (2009.01);
U.S. Cl.
CPC ...
H04W 74/0808 (2013.01); H04W 72/0446 (2013.01); H04W 72/121 (2013.01); H04W 72/1268 (2013.01); H04W 16/14 (2013.01);
Abstract

The present invention is designed so that UL signals of a plurality of user terminals can be multiplexed and communicated in cells where listening is employed (for example, unlicensed bands). According to the present invention, a user terminal communicates with a radio base station in a cell where listening is executed before uplink (UL) signals are transmitted, and has a transmission section that transmits UL signals, and a control section that controls the transmission of UL signals based on the result of listening. The control section makes the listening period for executing listening and the transmission period for transmitting UL signals the same among a plurality of user terminals that are scheduled in the same subframe.


Find Patent Forward Citations

Loading…