# US 2026/0101233 A1 · Communication method and device for xr service 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 2026/0101233 A1 - Document ID: US20260101233A1 - Status: Published application - Kind: A1 - Application number: 19/404,575 - Filed: 2025-12-01 - Published: 2026-04-09 - Earliest claimed: 2022-01-27 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Youngkyo BAEK; Jicheol LEE - Web page: https://patentgrep.com/patent/US20260101233A1 ## CPC - H04W 28/02: Traffic management, e.g. flow control or congestion control - H04W 28/0268: {using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] (negotiating SLA or negotiating QoS H04W28/24)} - H04L 67/131: Protocols for games, networked simulations or virtual reality - H04W 76/11: Allocation or use of connection identifiers - H04W 88/18: Service support devices; Network management devices - 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 disclosure relates to a communication method and device for an extended reality (XR) service in a wireless communication system. A method performed by an application server for the XR service in the wireless communication system includes allocating, to at least one UE, identification information for identifying the at least one UE using a same XR service or identifying at least one service flow for transferring XR data to each of the at least one UE and providing XR service-related information including the identification information and information about a delay time allowable for the XR service to the wireless communication system accessed by the at least one UE. ## Claims ### Claim 1 A method performed by an application function (AF) in a wireless communication system supporting a multi-modal service, the method comprising: transmitting, to a policy control function (PCF), via a network exposure function (NEF), a request related to the multi-modal service, the request including a multi-modal service identifier (ID) for identifying at least two data for providing a same multi-modal service, and quality of service (QoS) related information for each data flow identified by the multi-modal service ID to be applied to each service data flow associated with the at least two data; and receiving, from the PCF, via the NEF, a response for the request. ### Claim 2 (depends on 1) The method of claim 1, wherein the multi-modal service provides different types of data to one or more user equipments (UEs) through service data flows, the different types of data including at least one of audio data, video data, or haptic data. ### Claim 3 (depends on 1) The method of claim 1, wherein the QoS related information includes delay information associated with the multi-modal service. ### Claim 4 (depends on 1) The method of claim 1, wherein the QoS related information includes information about a delay difference representing an allowable delay time for the multi-modal service. ### Claim 5 An application function (AF) in a wireless communication system supporting a multi-modal service, the AF comprising: a transceiver; and a processor configured to: identify a multi-modal service identifier related to the multi-modal service, provide, to a policy control function (PCF), via a network exposure function (NEF), a request related to the multi-modal service, the request including a multi-modal service identifier (ID) for identifying at least two data for providing a same multi-modal service and quality of service (QoS) related information for each data flow identified by the multi-modal service ID to be applied to each service data flow associated with the at least two data, and receive, from the PCF, via the NEF, a response for the request. ### Claim 6 (depends on 5) The AF of claim 5, wherein the multi-modal service provides different types of data to one or more user equipments (UEs) through service data flows, the different types of data including at least one of audio data, video data, or haptic data. ### Claim 7 (depends on 5) The AF of claim 5, wherein the QoS related information includes delay information associated with the multi-modal service. ### Claim 8 (depends on 5) The AF of claim 5, wherein the QoS related information includes information about a delay difference representing an allowable delay time for the multi-modal service. ### Claim 9 A method performed by a policy control function (PCF) in a wireless communication system supporting a multi-modal service, the method comprising: receiving, from an application function (AF) through a network exposure function (NEF), a request related to the multi-modal service, the request including a multi-modal service identifier (ID) for identifying at least two data for providing a same multi-modal service and quality-of-service (QoS) related information for each data flow identified by the multi-modal service ID to be applied to each service data flow associated with the at least two data; and transmitting, to the AF through the NEF, a response for the request. ### Claim 10 (depends on 9) The method of claim 9, wherein the multi-modal service provides different types of data to one or more user equipments (UEs) through service data flows, the different types of data including at least one of audio data, video data, or haptic data. ### Claim 11 (depends on 9) The method of claim 9, wherein the QoS related information includes delay information associated with the multi-modal service. ### Claim 12 (depends on 9) The method of claim 9, wherein the QoS related information includes information about a delay difference representing an allowable delay time for the multi-modal service. ### Claim 13 A policy control function (PCF) in a wireless communication system supporting a multi-modal service, comprising: a transceiver; and a processor coupled to the transceiver and configured to: receive, from an application function (AF) through a network exposure function (NEF), a request related to the multi-modal service, the request including a multi-modal service identifier (ID) for identifying at least two data for providing a same multi-modal service and quality-of-service (QoS) related information related for each data flow identified by the multi-modal service ID to be applied to each service data flow associated with the at least two data, and transmit, to the AF through the NEF, a response for the request. ### Claim 14 (depends on 13) The PCF of claim 13, wherein the multi-modal service provides different types of data to one or more user equipments (UEs) through service data flows, the different types of data including at least one of audio data, video data, or haptic data. ### Claim 15 (depends on 13) The PCF of claim 13, wherein the QoS related information includes delay information associated with the multi-modal service. ### Claim 16 (depends on 13) The PCF of claim 13, wherein the QoS related information includes information about a delay difference representing an allowable delay time for the multi-modal service.