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:
Sep. 16, 2025

Filed:

Nov. 15, 2019
Applicant:

Lenovo (Beijing) Ltd., Beijing, CN;

Inventors:

Lianhai Wu, Chaoyang, CN;

Bingchao Liu, Changping District, CN;

Jing Han, Chaoyang District, CN;

Haiming Wang, Xicheng District, CN;

Jie Shi, Haidian District, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2018.01); H04W 36/00 (2009.01); H04W 76/19 (2018.01); H04W 36/36 (2009.01);
U.S. Cl.
CPC ...
H04W 36/0079 (2018.08); H04W 36/0058 (2018.08); H04W 76/19 (2018.02); H04W 36/362 (2023.05);
Abstract

The present application is related to a method and apparatus for performing a mobility robustness optimization (MRO) mechanism in a handover procedure of a user equipment (UE). Upon a failure associated with a serving cell of a base station (BS), the UE performs a cell selection procedure to select a cell of a second BS, wherein the failure is one of a radio link failure (RLF), a handover (HO) failure, or a first conditional handover (CHO) failure. The selected cell is associated with a CHO configuration. The UE performs a CHO procedure and, upon a second CHO failure during the CHO procedure, performs a RRC re-establishment procedure. After entering into a connected state with the second BS, the UE transmits, to the second BS, an RLF report that includes both information related to the failure and information related to the second CHO failure.


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