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 12665718 B1

Date of Patent:

Jun. 23, 2026

Filed:

Dec. 15, 2021

Method and apparatus for controlling use of tracking reference signals by user equipments in a wireless communication network

Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Mattias Frenne, Uppsala, SE;

George Jöngren, Sundbyberg, SE;

Siva Muruganathan, Stittsville, CA;

Shiwei Gao, Nepean, CA;

Assignee:

Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;

Attorney:

Murphy, Bilak & Homiller, PLLC

Primary Examiner:

Habte Mered

Int. Cl.

CPC ...

H04L 5/00 (2006.01); H04W 72/1273 (2023.01); H04W 72/23 (2023.01);

U.S. Cl.

CPC ...

H04L 5/0051 (2013.01); H04W 72/1273 (2013.01); H04W 72/23 (2023.01);

Abstract

Techniques disclosed herein provide for prohibiting use by a User Equipment (UE) () of configured Tracking Reference Signals (TRSs) (). For example, under certain conditions or circumstances, the UE () is prohibited from using any configured TRS () for time or frequency tracking, for reception by the UE () of a physical downlink channel (). For example, when TRS usage is prohibited for time or frequency tracking for reception of a physical downlink channel (), the UE () uses Demodulation Reference Symbols (DMRS) transmitted for the physical downlink channel (), for such time or frequency tracking.

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