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. 20, 2026

Filed:

Apr. 24, 2024
Applicant:

Nec Corporation, Tokyo, JP;

Inventors:

Yukai Gao, Beijing, CN;

Chuangxin Jiang, Beijing, CN;

Gang Wang, Beijing, CN;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 72/21 (2023.01); H04L 1/1607 (2023.01); H04L 1/1829 (2023.01); H04L 5/00 (2006.01); H04W 72/23 (2023.01);
U.S. Cl.
CPC ...
H04W 72/21 (2023.01); H04L 5/0051 (2013.01); H04L 5/0055 (2013.01); H04L 5/0094 (2013.01); H04W 72/23 (2023.01); H04L 1/1671 (2013.01); H04L 1/1854 (2013.01);
Abstract

Embodiments of the present disclosure relate to the communication processes in a wireless communication system based on short TTIs. According to one embodiment of the present disclosure, there provide a method for communication by a base station. The method comprise: receiving, from a user equipment, an uplink demodulation reference signal, DMRS, in an uplink transmission time interval, TTI, of an uplink subframe, which supports two or more uplink TTIs. At least one uplink TTI supported by the uplink subframe is configured to only transmit uplink control information and/or uplink data without any uplink DMRS. In the other aspects of the present disclosure, there also provides methods for communication by a user equipment and corresponding apparatuses.


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