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 12389443 B1

Date of Patent:

Aug. 12, 2025

Filed:

Jun. 04, 2024

Triggering of aperiodic channel state information reference signals with mixed numerology

Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Sebastian Faxér, Stockholm, SE;

Sorour Falahati, Stockholm, SE;

Robert Baldemair, Solna, SE;

Assignee:

TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;

Attorney:

Primary Examiner:

Dang T Ton

Int. Cl.

CPC ...

H04W 72/23 (2023.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 72/0446 (2023.01); H04W 72/542 (2023.01);

U.S. Cl.

CPC ...

H04W 72/542 (2023.01); H04L 5/0051 (2013.01); H04L 27/26025 (2021.01); H04W 72/0446 (2013.01); H04W 72/23 (2023.01);

Abstract

Devices, systems, and methods described herein may improve aperiodic CSI-RS handling in mixed numerology environments. An exemplary method includes operations of receiving a downlink control information (DCI) message carried by a Physical Downlink Control Channel (PDCCH) on a second carrier, wherein the second carrier uses a second OFDM numerology, obtaining an aperiodic CSI-RS slot offset from the DCI message, determining a reference slot in the first numerology, determining the slot of the aperiodic CSI-RS based on the reference slot and the aperiodic CSI-RS slot offset, and receiving or transmitting the aperiodic CSI-RS in the determined slot.

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