# US 12,604,328 B2 · Concurrent connectivity with both 4G and 5G networks for mobile devices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,604,328 B2 - Document ID: US12604328B2 - Status: Granted - Kind: B2 - Application number: 17/668,754 - Filed: 2022-02-10 - Published: 2022-05-26 - Granted: 2026-04-14 - Earliest claimed: 2020-03-06 - Assignees: T-Mobile USA, Inc. - Applicants: T-Mobile USA, Inc. - Inventors: Gaviphat Lekutai; Venson Shaw - Web page: https://patentgrep.com/patent/US12604328B2 ## CPC - H04W 72/51: based on terminal or device properties - H04W 4/029: Location-based management or tracking services - H04W 48/04: based on user or terminal location or mobility data, e.g. moving direction, speed - H04W 48/20: Selecting an access point - H04W 72/56: based on priority criteria - H04W 76/15: Setup of multiple wireless link connections - H04W 72/0457: Variable allocation of band or rate - H04W 76/16: Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract In 5G Non-Standalone (NSA), to balance the load on 5G users and 4G users effectively, the disclosed technology selects the proper secondary cell group (SCG), when the master cell group (MCG) is provided by 4G infrastructure. E-UTRAN New Radio-Dual Connectivity (ENDC) allows users to connect to a 4G MCG and a 5G SCG (SCG). The technology selects the SCG based on each user's application's attributes such as UL/DL data volume, speed or bandwidth. ## Claims ### Claim 1 At least one non-transitory computer-readable medium, carrying instructions that, when executed by at least one data processor, performs a method comprising: obtaining at least two attributes associated with a UE operating within a wireless cellular network having multiple 4G and 5G sites, wherein the at least two attributes include a battery power remaining in the UE, a latency associated with an application running on the UE, upload (UL) or download (DL) requirements of the UE, a mobility or speed of the UE, a UE thermal indicator, or a device type of the UE; selecting a secondary cell group in an E-UTRAN New Radio-Dual Connectivity (ENDC) group, wherein the ENDC group includes a primary cell group and the secondary cell group, wherein the primary cell group associated with the ENDC group provides a 4G cellular network connection via a 4G site, wherein the secondary cell group includes at least two 5G sites managed by the 4G site in the ENDC group, and wherein the selecting includes: obtaining at least two priorities associated with the at least two attributes to determine a high priority attribute, wherein the device type of the UE is an attribute of the at least two attributes, wherein the device type of the UE indicates a capability of the UE to connect to a 5G site, and selecting one 5G site in the secondary cell group to provide a 5G cellular network connection to the UE based at least in part on the least one high priority attribute. ### Claim 2 (depends on 1) The at least one non-transitory computer-readable medium of claim 1, wherein two attributes indicate disparate bandwidth requirements, and wherein selecting the secondary cell group further comprises: determining a higher bandwidth requirement between the disparate bandwidth requirements; and selecting the one 5G site in the secondary cell group as capable of providing a higher bandwidth cellular network connection. ### Claim 3 (depends on 1) The at least one non-transitory computer-readable medium of claim 1, wherein the at least two attributes comprise a power associated with the UE, and wherein selecting the secondary cell group further comprises: determining that the power associated with the UE is below a power threshold; and selecting the one 5G site in the secondary cell group as capable of providing a low-band cellular network connection, thereby preserving the power associated with the UE. ### Claim 4 (depends on 1) The at least one non-transitory computer-readable medium of claim 1, wherein the at least two attributes further comprise a location associated with the UE, and wherein selecting the secondary cell group further comprises: categorizing the location into an urban location, a suburban location, or a rural location; and selecting the one 5G site in the secondary cell group based on the location by: selecting the 5G site capable of providing millimeter wave connection when the location is the urban location, selecting the 5G site capable of providing mid-band connection when the location is the suburban location, and selecting the 5G site capable of providing low-band connection when the location is the rural location. ### Claim 5 (depends on 1) The at least one non-transitory computer-readable medium of claim 1, wherein the at least attributes further comprise a cellular network subscription associated with the UE, and wherein selecting the secondary cell group further comprises: determining a maximum bandwidth allowed under the cellular network subscription; and selecting one site in the secondary cell group as capable of providing the maximum bandwidth. ### Claim 6 (depends on 1) The at least one non-transitory computer-readable medium of claim 1, wherein two attributes indicate disparate bandwidth requirements, and wherein selecting the secondary cell group further comprises: selecting the one 5G site in the secondary cell group as capable of providing the 5G cellular network connection indicated by the high priority attribute. ### Claim 7 (depends on 1) The at least one non-transitory computer-readable medium of claim 1, further comprising dynamically configuring upload (UL) and download (DL) bandwidth associated with the secondary cell group based on the UL and DL requirements associated with the UE. ### Claim 8 (depends on 6) The at least one non-transitory computer-readable medium of claim 6, wherein the at least two attributes comprise an upload (UL) requirement of an application associated with the UE and a download (DL) requirement of the application associated with the UE, and wherein selecting the secondary cell group further comprises selecting the one site in the secondary cell group as capable of satisfying the UL requirement and the DL requirement of the application. ### Claim 9 A system comprising: at least one hardware processor; and at least one non-transitory memory storing instructions, which, when executed by the at least one hardware processor, cause the system to: obtain at least two attributes associated with a UE operating within a wireless cellular network having multiple 4G and 5G sites,, wherein the at least two attributes include at least two of: a battery power remaining in the UE, a latency associated with an application running on the UE, upload (UL) or download (DL) requirements of the UE, a mobility or speed of the UE, a UE thermal indicator, or a device type of the UE select a secondary cell group in an E-UTRAN New Radio-Dual Connectivity (ENDC) group, wherein the ENDC group includes a primary cell group and the secondary cell group, wherein the primary cell group associated with the ENDC group provides a 4G cellular network connection via a 4G site, wherein the secondary cell group includes at least two 5G sites managed by the 4G site in the ENDC group, and wherein the selecting includes: obtaining at least two priorities associated with the at least two attributes to determine a high priority attribute, wherein the device type of the UE is an attribute of the at least two attributes, wherein the device type of the UE indicates a capability of the UE to connect to a 5G site, and selecting one 5G site in the secondary cell group to provide a 5G cellular network connection to the UE based at least in part on the high priority attribute. ### Claim 10 (depends on 9) The system of claim 9, wherein two attributes of the at least two attributes indicate disparate bandwidth requirements, and wherein selecting the secondary cell group further comprises: determining a higher bandwidth requirement between the disparate bandwidth requirements; and selecting the one 5G site in the secondary cell group as capable of providing a higher bandwidth cellular network connection. ### Claim 11 (depends on 9) The system of claim 9, wherein the at least two attributes comprise a power associated with the UE, and wherein selecting the secondary cell group further comprises: determining that the power associated with the UE is below a power threshold; and selecting the one 5G site in the secondary cell group as capable of providing a low-band cellular network connection, thereby preserving the power associated with the UE. ### Claim 12 (depends on 9) The system of claim 9, wherein the at least two attributes further comprise a location associated with the UE, and wherein selecting the secondary cell group further comprises: categorizing the location into an urban location, a suburban location, or a rural location; and selecting the one 5G site in the secondary cell group based on the location by: selecting the 5G site capable of providing millimeter wave connection when the location is the urban location, selecting the 5G site capable of providing mid-band connection when the location is the suburban location, and selecting the 5G site capable of providing low-band connection when the location is the rural location. ### Claim 13 (depends on 9) The system of claim 9, wherein the at least two attributes further comprise a cellular network subscription associated with the UE, and wherein selecting the secondary cell group further comprises: determining a maximum bandwidth allowed under the cellular network subscription; and selecting one site in the secondary cell group as capable of providing the maximum bandwidth. ### Claim 14 (depends on 9) The system of claim 9, wherein two attributes of the at least two attributes indicate disparate bandwidth requirements, and wherein selecting the secondary cell group further comprises: selecting the one 5G site in the secondary cell group as capable of providing the 5G cellular network connection indicated by the high priority attribute. ### Claim 15 (depends on 9) The system of claim 9, further comprising dynamically configuring upload (UL) and download (DL) bandwidth associated with the secondary cell group based on the UL and DL requirements associated with the UE. ### Claim 16 (depends on 9) The system of claim 9, wherein the at least two attributes comprise an upload (UL) requirement of an application associated with the UE and a download (DL) requirement of the application associated with the UE, and wherein selecting the secondary cell group further comprises selecting the one site in the secondary cell group as capable of satisfying the UL requirement and the DL requirement of the application. ### Claim 17 A computer-implemented method comprising: obtaining at least two attributes associated with a UE operating within a wireless cellular network having multiple 4G and 5G sites, wherein the at least two attributes include a battery power remaining in the UE, a latency associated with an application running on the UE, upload (UL) or download (DL) requirements of the UE, a mobility or speed of the UE, a UE thermal indicator, or a device type of the UE; selecting a secondary cell group in an E-UTRAN New Radio-Dual Connectivity (ENDC) group, wherein the ENDC group includes a primary cell group and the secondary cell group, wherein the primary cell group associated with the ENDC group provides a 4G cellular network connection via a 4G site, wherein the secondary cell group includes at least two 5G sites managed by the 4G site in the ENDC group, and wherein the selecting includes: obtaining at least two priorities associated with the at least two attributes to determine a high priority attribute, wherein the device type of the UE is an attribute of the at least two attributes, wherein the device type of the UE indicates a capability of the UE to connect to a 5G site, and selecting one 5G site in the secondary cell group to provide a 5G cellular network connection to the UE based at least in part on the high priority attribute. ### Claim 18 (depends on 17) The computer-implemented method of claim 17, wherein two attributes of the at least two attributes indicate disparate bandwidth requirements, and wherein selecting the secondary cell group further comprises: determining a higher bandwidth requirement between the disparate bandwidth requirements; and selecting the one 5G site in the secondary cell group as capable of providing a higher bandwidth cellular network connection. ### Claim 19 (depends on 17) The computer-implemented method of claim 17, wherein the at least two attributes further comprise a cellular network subscription associated with the UE, and wherein selecting the secondary cell group further comprises: determining a maximum bandwidth allowed under the cellular network subscription; and selecting one site in the secondary cell group as capable of providing the maximum bandwidth. ### Claim 20 (depends on 17) The computer-implemented method of claim 17, further comprising dynamically configuring upload (UL) and download (DL) bandwidth associated with the secondary cell group based on the UL and DL requirements associated with the UE.