# US 12,015,960 B1 · System and method for redirection to optimal antenna arrays > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,015,960 B1 - Document ID: US12015960B1 - Status: Granted - Kind: B1 - Application number: 17/465,327 - Filed: 2021-09-02 - Granted: 2024-06-18 - Earliest claimed: 2021-09-02 - Assignees: T-Mobile Innovations LLC - Applicants: T-Mobile Innovations LLC - Inventors: Roopesh Kumar Polaganga; Sreekar Marupaduga - Web page: https://patentgrep.com/patent/US12015960B1 ## CPC - H04W 36/22: for handling the traffic - H04B 7/0413: MIMO systems - H04W 28/0252: {per individual bearer or channel (dynamic wireless traffic scheduling H04W72/12)} - H04W 36/0027: {for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION ## Abstract Systems and methods for directing a user equipment (UE) to optimal antenna arrays during fallback procedures or handover procedures. The method can include the steps of determining that the UE is connecting to a first network and automatically assigning the UE to a first antenna array having a first multiple input multiple output (MIMO) configuration when the UE is in a data session. Furthermore, the method can include the step of automatically assigning the UE to a second antenna array having a second MIMO configuration when the UE is in a non-data session, such as a voice session. The first MIMO configuration can have a higher number of channels or antennas than the second MIMO configuration. ## Claims ### Claim 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. ### Claim 2 (depends on 1) The method of claim 1, further comprising determining that at least two antenna arrays having different MIMO configurations are available to the UE on the first network. ### Claim 3 (depends on 2) The method of claim 2, wherein the UE is determined to be in the non-data session when the last-assigned 5QI bearer equals one, wherein the UE is determined to be in the data session when the last-assigned 5QI bearer does not equal one. ### Claim 4 (depends on 1) The method of claim 1, wherein the first antenna array has a MIMO configuration with a higher number of channels than the second antenna array. ### Claim 5 (depends on 1) The method of claim 1, wherein the first antenna array has a four by four MIMO configuration. ### Claim 6 (depends on 1) The method of claim 1, wherein the second antenna array has a two by two MIMO configuration. ### Claim 7 (depends on 1) The method of claim 1, wherein the non-data session is a voice session. ### Claim 8 (depends on 1) The method of claim 1, wherein the first antenna array corresponds to a first node and the second antenna array corresponds to the first node or to a second node. ### Claim 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 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. ### Claim 10 (depends on 9) The computer-readable media of claim 9, the executable instructions further comprising a step of determining determining that at least two antenna arrays having different MIMO configurations are available to the UE on the first network. ### Claim 11 (depends on 10) The computer-readable media of claim 10, wherein the UE is determined to be in the non-data session when the last-assigned 5QI bearer equals one, wherein the UE is determined to be in the data session when the last-assigned 5QI bearer does not equal one. ### Claim 12 (depends on 9) The computer-readable media of claim 9, wherein the first antenna array has a four by four MIMO configuration and the second antenna array has a two by two MIMO configuration. ### Claim 13 (depends on 9) The computer-readable media of claim 9, wherein the non-data session is a voice session. ### Claim 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 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. ### Claim 15 (depends on 14) The system of claim 14, wherein the first antenna array has a MIMO configuration with a higher number of channels than the second antenna array. ### Claim 16 (depends on 14) The system of claim 14, the executable instructions further comprising a step of determining that at least two antenna arrays having different MIMO configurations are available to the UE on the first network.