# US 12,010,566 B2 · AMF based handover decision > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,566 B2 - Document ID: US12010566B2 - Status: Granted - Kind: B2 - Application number: 18/094,210 - Filed: 2023-01-06 - Published: 2023-05-11 - Granted: 2024-06-11 - Earliest claimed: 2020-06-26 - Assignees: T-Mobile USA, Inc. - Applicants: T-Mobile USA, Inc. - Inventors: Adnan Rahat; Shujaur Mufti - Web page: https://patentgrep.com/patent/US12010566B2 ## CPC - H04W 36/0058: {Transmission of hand-off measurement information, e.g. measurement reports} - H04W 36/385: {of the core network} - H04W 36/00226: {wherein the core network technologies comprise IP multimedia system [IMS], e.g. single radio voice call continuity [SRVCC]} - H04W 36/144: {over a different radio air interface technology} - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The techniques include receiving a handover request from a user device connected to a first access network and identifying a Non-3GPP Interworking Function (N3IWF) serving the user device. The user device provides to the N3IWF, measurement report indicating network conditions. The techniques further include receiving the measurement report from the N3IWF and determining whether a measurement in the measurement report is above a predetermined threshold. If the measurement is above the predetermined threshold, the handover request is accepted to enable the user device to connect to a second access network. ## Claims ### Claim 1 A system, comprising: one or more non-transitory storage mediums configured to provide stored computer-readable instructions, the one or more non-transitory storage mediums coupled to one or more processors, the one or more processors configured to execute the computer-readable instructions to cause the one or more processors to: receive a handover request from a user device connected to a first access network; identify a Non-3GPP Interworking Function (N3IWF) serving the user device, the user device providing to the N3IWF, measurement report indicating network conditions; receive the measurement report from the N3IWF; determine whether a measurement in the measurement report is above a predetermined threshold; and in response to determine that the measurement is above the predetermined threshold, accepting the handover request to enable the user device to connect to a second access network. ### Claim 2 (depends on 1) The system of claim 1, wherein the first access network comprises a Wi-Fi network. ### Claim 3 (depends on 1) The system of claim 1, wherein the second access network comprises a 5G network. ### Claim 4 (depends on 1) The system of claim 1, wherein the measurement indicates radio frequency (RF) conditions. ### Claim 5 (depends on 1) The system of claim 1, wherein the one or more processors are further configured to: store an N3IWF address associated with the N3IWF, wherein the N3IWF is identified based at least on the N3IWF address. ### Claim 6 (depends on 1) The system of claim 1, wherein the system comprises an Access and Management Mobility Function (AMF) server that receives the measurement reports from the N3IWF and determines whether the measurement in the measurement report is above the predetermined threshold. ### Claim 7 One or more non-transitory computer-readable media storing computer-executable instructions that upon execution cause one or more processors to perform acts comprising: receiving a handover request from a user device connected to a first access network; identifying a Non-3GPP Interworking Function (N3IWF) serving the user device, the user device providing to the N3IWF, measurement report indicating network conditions; receiving the measurement report from the N3IWF; determining whether a measurement in the measurement report is above a predetermined threshold; and in response to determining that the measurement is above the predetermined threshold, accepting the handover request to enable the user device to connect to a second access network. ### Claim 8 (depends on 7) The one or more non-transitory computer-readable media of claim 7, wherein the first access network comprises a Wi-Fi network. ### Claim 9 (depends on 7) The one or more non-transitory computer-readable media of claim 7, wherein the second access network comprises a 5G network. ### Claim 10 (depends on 7) The one or more non-transitory computer-readable media of claim 7, wherein the measurement indicates radio frequency (RF) conditions. ### Claim 11 (depends on 7) The one or more non-transitory computer-readable media of claim 7, wherein the acts further comprise: storing an N3IWF address associated with the N3IWF, wherein the N3IWF is identified based at least on the N3IWF address. ### Claim 12 (depends on 7) The one or more non-transitory computer-readable media of claim 7, wherein the receiving includes receiving the measurement report from the N3IWF at an Access and Management Mobility Function (AMF) server. ### Claim 13 (depends on 12) The one or more non-transitory computer-readable media of claim 12, wherein the determining includes determining whether the measurement in the measurement report is above the predetermined threshold at the AMF server. ### Claim 14 A computer-implemented method, comprising: receiving a handover request from a user device connected to a first access network; identifying a Non-3GPP Interworking Function (N3IWF) serving the user device, the user device providing to the N3IWF, measurement report indicating network conditions; receiving the measurement report from the N3IWF; determining whether a measurement in the measurement report is above a predetermined threshold; and in response to determining that the measurement is above the predetermined threshold, accepting the handover request to enable the user device to connect to a second access network. ### Claim 15 (depends on 14) The computer-implemented method of claim 14, wherein the first access network comprises a Wi-Fi network. ### Claim 16 (depends on 14) The computer-implemented method of claim 14, wherein the second access network comprises a 5G network. ### Claim 17 (depends on 14) The computer-implemented method of claim 14, wherein the measurement indicates radio frequency (RF) conditions. ### Claim 18 (depends on 14) The computer-implemented method of claim 14, further comprising: storing an N3IWF address associated with the N3IWF, wherein the N3IWF is identified based at least on the N3IWF address. ### Claim 19 (depends on 14) The computer-implemented method of claim 14, wherein the receiving includes receiving the measurement report from the N3IWF at an Access and Management Mobility Function (AMF) server. ### Claim 20 (depends on 19) The computer-implemented method of claim 19, wherein the determining includes determining whether the measurement in the measurement report is above the predetermined threshold at the AMF server.