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. 14, 2023

Filed:

Apr. 08, 2021
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Ozcan Ozturk, San Diego, CA (US);

Xiaoxia Zhang, San Diego, CA (US);

Arash Mirbagheri, San Diego, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2018.01); H04W 36/24 (2009.01); H04W 74/08 (2009.01); H04W 48/10 (2009.01); H04W 36/00 (2009.01); H04W 24/04 (2009.01);
U.S. Cl.
CPC ...
H04W 36/24 (2013.01); H04W 24/04 (2013.01); H04W 36/0072 (2013.01); H04W 48/10 (2013.01); H04W 74/0816 (2013.01); H04W 74/0833 (2013.01);
Abstract

Handling of listen before talk (LBT) failures during radio resource control (RRC) procedures is disclosed. A user equipment (UE) may be configured to monitor for consistent uplink and downlink LBT failures on a bandwidth part (BWP) configured for a target cell. When the UE determines that consistent LBT failures are occurring with respect to the BWP, the UE may determine an LBT failure state on the BWP. In response, the UE may execute a recovery procedure, which may include selecting a new BWP associated with the target cell and having configured uplink resources, performing a cell reselection procedure, or switching to idle in order to perform cell selection. The UE may then report the LBT failures according to cell identification and BWP.


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