	US 12,015,960 B1
	System and method for redirection to optimal antenna arrays
Roopesh Kumar Polaganga, Bothell, WA (US); and Sreekar Marupaduga, Overland Park, KS (US)
Assigned to T-Mobile Innovations LLC, Overland Park, KS (US)
Filed by T-Mobile Innovations LLC, Overland Park, KS (US)
Filed on Sep. 2, 2021, as Appl. No. 17/465,327.
Int. Cl. H04W 36/22 (2009.01); H04B 7/0413 (2017.01); H04W 28/02 (2009.01); H04W 36/00 (2009.01)

CPC H04W 36/22 (2013.01) [H04B 7/0413 (2013.01); H04W 28/0252 (2013.01); H04W 36/0027 (2013.01)]

16 Claims

1. A method for directing a user equipment (UE) connecting to a first network based on evolved packet system fallback (ESPFB) procedures or inter radio access technology handover (IRATHO) procedures from a second network to an optimal antenna array, the method comprising:

determining that the UE is connecting to the first network from the second network, wherein the first network is a long term evolution (LTE) network or a 5G non-standalone (NSA) network and the second network is a 5G standalone (SA) network;

determining, at the second network, whether the UE is in a data session or in a non-data session based on a last-assigned 5G quality of service indicator (5QI) bearer of the UE;

automatically assigning the UE to a first antenna array on the first network having a first multiple input multiple output (MIMO) configuration when the UE is determined to be in the data session; and

automatically assigning the UE to a second antenna array on the first network that is associated with different LTE layers than the first antenna array and that has a second MIMO configuration with fewer layers than the first MIMO configuration when the UE is determined to be in the non-data session.

9. A non-transitory computer-readable media comprising executable instructions that, in response to execution, cause a network device comprising one or more processors to perform operations in a radio access network (RAN) for directing a user equipment (UE) connecting to a first network based on evolved packet system fallback (ESPFB) procedures or inter radio access technology handover (IRATHO) procedures from a second network to an optimal antenna array, the executable instructions comprising the steps of:

determining, at the second network, whether the UE is in a data session or in a non-data session based on a last-assigned 5G quality of service indicator (5QI) bearer of the UE;

14. A system for directing a user equipment (UE) connecting to a first network based on evolved packet system fallback (ESPFB) procedures or inter radio access technology handover (IRATHO) procedures from a second network to an optimal antenna array, the system comprising:

a network device comprising one or more processors; and

a non-transitory computer-readable media comprising executable instructions that, in response to execution, cause the network device to perform operations in a radio access network (RAN), the executable instructions comprising the steps of:

determining, at the second network, whether the UE is in a data session or in a non-data session based on a last-assigned 5G quality of service indicator (5QI) bearer of the UE;