US 12,432,624 B2
Techniques for improvement of voice over Wi-Fi to voice over cellular handovers
Vikram Singh, San Diego, CA (US); Yong Xie, San Diego, CA (US); and Carlos Marcelo Dias Pazos, Carlsbad, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on May 1, 2024, as Appl. No. 18/651,772.
Application 18/651,772 is a division of application No. 17/450,018, filed on Oct. 5, 2021, granted, now 12,004,019.
Claims priority of provisional application 63/198,307, filed on Oct. 9, 2020.
Prior Publication US 2024/0284267 A1, Aug. 22, 2024
Int. Cl. H04W 36/00 (2009.01); H04W 36/14 (2009.01); H04W 36/30 (2009.01)
CPC H04W 36/0022 (2013.01) [H04W 36/00224 (2023.05); H04W 36/1446 (2023.05); H04W 36/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a user equipment (UE), comprising:
determining, during an active call on a first radio access technology (RAT), that a signal strength associated with the first RAT is within a particular range above a handover threshold associated with triggering a handover from the first RAT to a second RAT;
determining, based at least in part on a signal strength of the second RAT, that the active call would be moved from the second RAT to a third RAT after the handover from the first RAT to the second RAT;
triggering mobility from the second RAT to the third RAT based at least in part on the determination that the signal strength associated with the first RAT is within the particular range and the determination that the active call would be moved from the second RAT to the third RAT; and
performing a handover from the first RAT to the third RAT based at least in part on the triggering of the mobility from the second RAT to the third RAT.