US 12,284,140 B2
TDD-to-FDD handover based on service type and uplink quality
Mochamad Mirza, Bothell, WA (US)
Assigned to T-Mobile USA, Inc., Bellevue, WA (US)
Filed by T-Mobile USA, Inc., Bellevue, WA (US)
Filed on Dec. 28, 2022, as Appl. No. 18/090,318.
Application 18/090,318 is a continuation of application No. 17/187,495, filed on Feb. 26, 2021, granted, now 11,641,609.
Prior Publication US 2023/0142031 A1, May 11, 2023
Int. Cl. H04L 5/14 (2006.01); H04W 36/08 (2009.01); H04W 36/14 (2009.01); H04W 36/24 (2009.01); H04W 36/30 (2009.01)
CPC H04L 5/14 (2013.01) [H04W 36/24 (2013.01); H04W 36/08 (2013.01); H04W 36/144 (2023.05); H04W 36/304 (2023.05)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method comprising:
determining, by a serving base station, and during setup of a communication session for a user equipment (UE) using time-division duplexing (TDD), a Quality of Service Class Identifier (QCI) value associated with the communication session;
determining, by the serving base station, that the QCI value matches a predefined value of a set of predefined values;
measuring, by the serving base station, a signal-to-interference-plus-noise ratio (SINR) value associated with an uplink connection established by the UE;
determining, by the serving base station, that the SINR value fails to satisfy a threshold SINR value; and
transitioning, based at least in part on the SINR value failing to satisfy the threshold SINR value and the QCI value matching the predefined value of the set of predefined values, the communication session from the serving base station to a target base station to finish the setup using frequency-division duplexing (FDD).