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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.:

US 12794627 B1

PDFFull Text
Date of Patent:
Nov. 10, 2026

Filed:

Jan. 13, 2021

Dynamic adaptation of reference signal transmissions in wireless communications

Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Hong He, Cupertino, CA (US);

Dawei Zhang, Saratoga, CA (US);

Wei Zeng, San Diego, CA (US);

Haitong Sun, Irvine, CA (US);

Chunhai Yao, Beijing, CN;

Yushu Zhang, Beijing, CN;

Seyed Ali Akbar Fakoorian, San Diego, CA (US);

Oghenekome Oteri, San Diego, CA (US);

Weidong Yang, San Diego, CA (US);

Sigen Ye, Whitehouse, NJ (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:

Kowert, Hood, Munyon, Rankin & Goetzel, P.C.

Primary Examiner:

Justin T Van Roie

Int. Cl.
CPC ...
H04L 5/00 (2006.01);
U.S. Cl.
CPC ...
H04L 5/0051 (2013.01); H04L 5/0082 (2013.01);
Abstract

Transmission of uplink demodulation reference signals (DMRSs) may be dynamically adapted for mobile devices. Downlink control information (DCI) that schedules uplink transmission(s) of the mobile device may include an information element (IE) corresponding to a DMRS to be transmitted by the UE during the uplink transmission(s). The IE enables the mobile device to determine when to transmit DMRSs during the scheduled uplink transmission(s). The mobile device may identify a corresponding DMRS pattern indicated by the IE, with the DMRS pattern defining how many DMRSs to transmit during the uplink transmission(s), how many DMRSs to transmit in a given time interval (TTI) bundle in the uplink transmission(s), how many DMRSs to transmit in a given repetition of the TTI bundle, and/or where the relative position(s) of the DMRSs are within the given repetition and the given TTI bundle. The DMRS patterns may be configured for the mobile device via higher layer signaling or may be hard-coded.

Find Patent Forward Citations

Quick Actions:

He, Hong. (2026). Dynamic adaptation of reference signal transmissions in wireless communications (U.S. Patent No. 12794627). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12794627

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