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.:
Date of Patent:
Jul. 28, 2026
Filed:
Sep. 30, 2021
Lenovo (Beijing) Limited, Beijing, CN;
Le Yan, Shanghai, CN;
Lianhai Wu, Shanghai, CN;
Mingzeng Dai, Shanghai, CN;
Congchi Zhang, Shanghai, CN;
Yibin Zhuo, Shanghai, CN;
LENOVO (BEIJING) LIMITED, Beijing, CN;
Abstract
The present application relates to methods and apparatuses for handling failure. According to some embodiments of the present application, a user equipment (UE), includes a processor; and a receiver coupled to the processor, the receiver being configured to receive a radio resource control (RRC) reconfiguration message from a source node which manages a source cell, the RRC reconfiguration message including both conditional handover (CHO) configurations and per data radio bearer (DRB) dual active protocol stack (DAPS) HO indication for each candidate cell of one or more candidate cells; wherein the processor configured to: perform a first handover procedure to a first target cell selected from the one or more candidate cells; and in response to a failure of the first handover procedure, perform fallback to the source cell when at least one of the following conditions is met: a cell quality of the source cell is higher than or equal to that of each candidate cell of the one or more candidate cells, and there is no radio link failure (RLF) in the source cell; the source cell is selected by a cell selection procedure with configurations of the source cell maintained; the cell quality of the source cell is higher than a threshold; or an indication indicating that the UE is to perform fallback to the source cell is received.