# US 12,764,594 B2 · Method and device for mapping UE routing selection policy in wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,764,594 B2 - Document ID: US12764594B2 - Status: Granted - Kind: B2 - Application number: 18/730,132 - Filed: 2023-01-20 - Published: 2025-05-08 - Granted: 2026-10-13 - Earliest claimed: 2022-01-21 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Dongyeon Kim; Jicheol Lee - Web page: https://patentgrep.com/patent/US12764594B2 ## CPC - H04W 28/0263: {involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]} - H04L 47/20: Traffic policing - H04W 40/246: {Connectivity information discovery} - H04W 60/00: Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates, and pertains to an operation method of a user equipment (UE). The operation method comprises the steps of transmitting a registration request message including a traffic category support indication to an access and mobility management function (AMF) via an access node, receiving, from the AMF via the access node, a UE configuration update message including UE route selection policy (URSP) rules determined on the basis of the traffic category support indication and first traffic category mapping information, and determining a protocol data unit (PDU) session for application traffic on the basis of the URSP rules and pre-stored second traffic category mapping information. ## Claims ### Claim 1 An operation method of a user equipment (UE) in a wireless communication system, the method comprising: transmitting a registration request message comprising a traffic category support indication to an access and mobility management function (AMF) via an access node; receiving, from the AMF via the access node, a UE configuration update message comprising UE route selection policy (URSP) rules determined based on the traffic category support indication and first traffic category mapping information; and determining a protocol data unit (PDU) session for application traffic, based on the URSP rules and pre-stored second traffic category mapping information. ### Claim 2 (depends on 1) The method of claim 1, wherein, in response to the registration request message, a UE policy associate create request message comprising the traffic category support indication is transmitted from the AMF to a PCF. ### Claim 3 (depends on 2) The method of claim 2, wherein, in response to the UE policy associate create request message, a DM query request message is transmitted from the PCF to a UDR, and wherein, in response to the DM query request message, a DM query response message comprising the first traffic category mapping information is transmitted from the UDR to the PCF. ### Claim 4 (depends on 3) The method of claim 3, wherein, in response to the DM query response message, a DM subscription message comprising the traffic category support indication and the first traffic category mapping information is transmitted from the PCF to the UDR. ### Claim 5 (depends on 4) The method of claim 4, wherein the URSP rules are determined by the PCF, based on the first traffic category mapping information. ### Claim 6 (depends on 5) The method of claim 5, wherein an N1N2message transfer message comprising the URSP rules is transmitted from the PCF to the AMF. ### Claim 7 (depends on 6) The method of claim 6, wherein the UE configuration update message is received from the AMF via the access node in response to the N1N2message transfer message. ### Claim 8 (depends on 1) The method of claim 1, wherein the determining of the PDU session comprises: storing the URSP rules; and detecting the application traffic. ### Claim 9 (depends on 8) The method of claim 8, wherein the determining of the PDU session further comprises determining a traffic category corresponding to the detected application traffic, based on the pre-stored second traffic category mapping information. ### Claim 10 (depends on 9) The method of claim 9, wherein the determining of the PDU session further comprises: determining at least one URSP rule corresponding to the determined traffic category, based on the URSP rules; and determining an internal connection interface and the PDU session for the application traffic, based on the at least one URSP rule. ### Claim 11 (depends on 1) The method of claim 1, further comprising: transmitting, to the AMF via the access node, a request message for requesting establishment of the PDU session; and receiving a response message to the request message from the AMF via the access node. ### Claim 12 (depends on 1) The method of claim 1, wherein the traffic category support indication indicates that the UE detects at least one application traffic, based on a traffic category indicated by at least one of the first traffic category mapping information and the pre-stored second traffic category mapping information. ### Claim 13 (depends on 1) The method of claim 1, wherein the first traffic category mapping information is determined by a PCF based on network configuration information, is transmitted from the PCF to the AMF, and indicates a route selection component (RSC) and an application corresponding to each of multiple traffic categories. ### Claim 14 (depends on 1) The method of claim 1, wherein the pre-stored second traffic category mapping information is determined by the UE, based on UE configuration information received from the AMF via the access node, and indicates a route selection component and an application corresponding to each of multiple traffic categories. ### Claim 15 An operation method of a user equipment (UE) in a wireless communication system, the method comprising: transmitting a registration request message comprising a traffic category support indication to an access and mobility management function (AMF) via an access node; receiving, from the AMF via the access node, a UE configuration update message comprising traffic category mapping information and UE route selection policy (URSP) rules determined based on the traffic category support indication; and determining a protocol data unit (PDU) session for application traffic, based on the URSP rules and the traffic category mapping information.