US 11,889,364 B2
Enhanced make-before-break (MBB) handover failure
Prasad Reddy Kadiri, San Diego, CA (US); Amer Catovic, San Diego, CA (US); Umesh Phuyal, San Diego, CA (US); Karthika Paladugu, San Diego, CA (US); Alberto Rico Alvarino, San Diego, CA (US); and Masato Kitazoe, Tokyo (JP)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jun. 4, 2021, as Appl. No. 17/303,681.
Application 17/303,681 is a continuation of application No. 16/506,996, filed on Jul. 9, 2019, granted, now 11,032,750.
Claims priority of provisional application 62/696,180, filed on Jul. 10, 2018.
Prior Publication US 2021/0306918 A1, Sep. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 36/00 (2009.01); H04W 36/08 (2009.01); H04W 76/18 (2018.01); H04W 76/27 (2018.01); H04W 88/02 (2009.01); H04W 76/30 (2018.01); H04L 1/20 (2006.01); H04W 74/08 (2009.01)
CPC H04W 36/0079 (2018.08) [H04L 1/203 (2013.01); H04W 36/0033 (2013.01); H04W 36/08 (2013.01); H04W 74/0833 (2013.01); H04W 76/18 (2018.02); H04W 76/27 (2018.02); H04W 76/30 (2018.02); H04W 88/023 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a user equipment (UE), comprising:
detecting that a timer has expired prior to completing a handover of the UE from a source base station (BS) to a target BS;
selectively maintaining, based at least in part on detecting that the timer has expired prior to completing the handover and whether a connection between the UE and the source BS satisfies a connection condition, the connection,
wherein the UE maintains the connection without an action associated with a radio link failure being performed based at least in part on the timer having expired prior to completing the handover and the connection satisfying the connection condition; and transmitting, to the source BS, a message when the connection is maintained.