US 11,871,469 B2
Techniques for triggering radio access technology (RAT) fall back at a user equipment (EU) based on data traffic information
Nikhil Challa, San Diego, CA (US); Mahesh Kommi, San Diego, CA (US); Anil Rao, San Diego, CA (US); Nishith Chaubey, San Diego, CA (US); Heekab Shin, San Diego, CA (US); and Brian Danque, Escondido, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Aug. 10, 2020, as Appl. No. 16/989,694.
Prior Publication US 2022/0046738 A1, Feb. 10, 2022
Int. Cl. H04W 76/18 (2018.01); H04L 41/0668 (2022.01); H04W 24/08 (2009.01); H04W 24/10 (2009.01); H04W 56/00 (2009.01); H04W 76/16 (2018.01); H04W 72/20 (2023.01); H04W 88/06 (2009.01); G06N 20/00 (2019.01); G06N 5/04 (2023.01)
CPC H04W 76/18 (2018.02) [G06N 5/04 (2013.01); G06N 20/00 (2019.01); H04L 41/0668 (2013.01); H04W 24/08 (2013.01); H04W 24/10 (2013.01); H04W 56/001 (2013.01); H04W 72/20 (2023.01); H04W 76/16 (2018.02); H04W 88/06 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method for wireless communications at a user equipment (UE), comprising:
establishing a first connection with a first cell using a first radio access technology (RAT);
receiving a first request message to add a second connection with a second cell using a second RAT different from the first RAT;
determining to perform data transfer via the first connection using the first RAT based at least in part on data traffic information for the UE;
delaying establishing the second connection with the second cell using the second RAT for at least a time duration based at least in part on determining to perform the data transfer via the first connection using the first RAT, wherein delaying establishing the second connection includes:
transmitting, in response to the first request message, a failure message indicating a failure to add the second connection with the second cell using the second RAT;
receiving one or more second request messages to add the second connection with the second cell using the second RAT based at least in part on the failure message;
establishing, after the time duration, the second connection with the second RAT; and
operating in a dual connectivity mode for the first RAT and the second RAT based at least in part on the data traffic information, the established first connection, and the established second connection.