US Patent No. 11,032,866

METHODS AND RELATED DEVICES FOR MULTI-CONNECTIVITY


Patent No. 11,032,866
Issue Date June 08, 2021
Title Methods And Related Devices For Multi-connectivity
Inventorship Mei-Ju Shih, Hsinchu (TW)
Chie-Ming Chou, Hsinchu (TW)
Hung-Chen Chen, Hsinchu (TW)
Yung-Lan Tseng, Hsinchu (TW)
Assignee FG Innovation Company Limited, Tuen Mun (HK)

Claim of US Patent No. 11,032,866

1. A User Equipment (UE) for multi-connectivity, comprising:one or more non-transitory computer-readable media having computer-executable instructions embodied thereon; and
at least one processor coupled to the one or more non-transitory computer-readable media, and configured to execute the computer-executable instructions to:
receive a first Radio Resource Control (RRC) message comprising at least one Secondary Cell Group (SCG) Data Radio Bearer (DRB) configuration from a Master Cell Group (MCG);
start a first timer upon receiving the first RRC message;
report failure information to the MCG via an SCG Failure Information message when the first timer expires, the failure information comprising an SCG failure cause value and at least one first cell identity (ID) indicating at least one suitable cell determined by the UE, the SCG failure cause value indicating a reconfiguration failure of the first RRC message; and
stop the first timer when at least one of the following conditions is satisfied:
initiating an RRC reestablishment procedure by sending an RRC reestablishment request message to the MCG;
sending the SCG Failure Information message to the MCG before the first timer expires; and
successfully adding the SCG DRB configuration.