# US 2020/0288343 A1 · Terminal device, data transmission/reception device, and operating method of device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0288343 A1 - Document ID: US20200288343A1 - Status: Published application - Kind: A1 - Application number: 16/758,143 - Filed: 2018-10-18 - Published: 2020-09-10 - Earliest claimed: 2017-10-25 - Assignees: SK Telecom Co., Ltd. - Applicants: SK Telecom Co., Ltd. - Inventors: Dong Jin LEE - Web page: https://patentgrep.com/patent/US20200288343A1 ## CPC - H04L 45/38: {Flow based routing} - H04L 45/02: Topology update or discovery - H04W 28/0263: {involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]} - 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: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Disclosed is a technology for resolving the problems of the conventional 5G ULCL function and efficiently supporting requirements/performance of the URLLC service supported by 5G as the terminal implements a new technology, that is, ULCL of the terminal capable of controlling steering of the transmission path of its own traffic. ## Claims ### Claim 1 An apparatus for transmitting and receiving data, the apparatus comprising: an identification unit configured to identify whether specific information for defining a transmission path is included within a received uplink packet; a path configuration unit configured to generate a transmission path according to the specific information when the specific information is included and configure the generated transmission path as a service flow path of an uplink packet; and a transmission unit configured to transmit an uplink packet corresponding to the service flow among received uplink packets through the transmission packet. ### Claim 2 (depends on 1) The apparatus of claim 1, further comprising a local link unit configured to support generation of at least one transmission path having a destination corresponding to a device within each local network by linking with at least one local network, wherein the path configuration unit is configured to generate the transmission path according to the specific information within a range supported by the local link unit. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the path configuration unit is configured to store mapping information for mapping service flow separation information of the uplink packet and the generated transmission path in a path table and configure the generated transmission path according to the specific information as the service flow path of the uplink packet. ### Claim 4 (depends on 2) The apparatus of claim 2, wherein the transmission unit is configured to transmit an uplink packet which has specific information among the received uplink packets to a default data network, when the path configuration unit fails in generating a transmission path according to the specific information. ### Claim 5 (depends on 3) The apparatus of claim 3, wherein the transmission unit is configured to transmit an uplink packet among the received uplink packets to a default data network, when service flow separation information is not included in the path table. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the path configuration unit is configured to delete the transmission path configured as the service flow path of the uplink packet when an uplink packet including request information for requesting to delete the transmission path is received. ### Claim 7 An apparatus of a terminal comprising: a separate unit configured to separate service flow of uplink packet to be transmitted; an information insertion unit configured to, when a predefined triggering condition is satisfied, insert specific information for defining a transmission path of a service flow into an uplink packet of the service flow according to the satisfied triggering condition among the separated service flows; and a transmission unit configured to transmit the uplink packet to a data node. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the information insertion unit is configured to insert the specific information into a first uplink packet of the service flow. ### Claim 9 (depends on 7) The apparatus of claim 7, wherein policy information for selecting specific information based on the triggering condition is pre-stored in an information table including a plurality of pieces of specific information, and the information insertion unit is configured to select and insert the specific information based on the information table and the policy information. ### Claim 10 (depends on 7) The apparatus of claim 7, wherein the triggering condition is satisfied when a specific service flow that requires configuration of a transmission path based on specific information is generated, when a slice ID of a specific service type that requires configuration of a transmission path based on specific information is used, when a quality of a radio signal becomes equal to or smaller than a specific value that requires configuration of a transmission path based on specific information, when the apparatus of the terminal is located in a specific area that requires configuration of a transmission path based on specific information, when an amount of used traffic is larger than a specific value that requires configuration of a transmission path, or when a control event is received from a core network. ### Claim 11 (depends on 7) The apparatus of claim 7, wherein the specific information comprises a service code for defining at least one of a service type supported by the transmission path, address information of a device corresponding to a destination of the transmission path, service capacity information of the transmission path, and delay information. ### Claim 12 (depends on 7) The apparatus of claim 7, wherein the information insertion unit is configured to insert request information for requesting to delete the transmission path into a last uplink packet of a transmitted service flow to which the specific information is inserted. ### Claim 13 A method of operating a data transmission and reception apparatus, the method comprising: identifying whether specific information for defining a transmission path is included within a received uplink packet; generating a transmission path according to the specific information when the specific information is included and configuring the generated transmission path as a service flow path of an uplink packet; and transmitting an uplink packet corresponding to the service flow among received uplink packets through the transmission packet. ### Claim 14 (depends on 13) The method of claim 13, wherein the generating comprises: storing mapping information for mapping service flow separation information of the uplink packet and the generated transmission path in a path table and configuring the generated transmission path according to the specific information as the service flow path of the uplink packet. ### Claim 15 (depends on 13) The method of claim 13, wherein the transmitting comprises: transmitting an uplink packet among the received uplink packets to a default data network when generation of a transmission path according to specific information included in the uplink packet fails or service flow separation information is not included in the path table. ### Claim 16 A method of operating a terminal apparatus, the method comprising: separating service flow of uplink packet to be transmitted; inserting, when a predefined triggering condition is satisfied, specific information for defining a transmission path of a service flow into an uplink packet of the service flow according to the satisfied triggering condition among the separated service flows; and a transmission step of transmitting the uplink packet to a data node. ### Claim 17 (depends on 16) The method of claim 16, wherein the information insertion step comprises inserting the specific information into a first uplink packet of the service flow for each service flow. ### Claim 18 (depends on 16) The method of claim 16, further comprising: pre-storing policy information for selecting specific information based on the triggering condition in an information table including a plurality of pieces of specific information, and the inserting comprises selecting and inserting the specific information based on the information table and the policy information. ### Claim 19 (depends on 16) The method of claim 16, wherein the specific information comprises a service code for defining at least one of a service type supported by the transmission path, address information of a device corresponding to a destination of the transmission path, service capacity information of the transmission path, and delay information. ### Claim 20 A computer program combined with hardware and stored in a medium to perform the steps of: separating service flow of uplink packet to be transmitted; inserting, when a predefined triggering condition is satisfied, specific information for defining a transmission path of a service flow into an uplink packet of the service flow according to the satisfied triggering condition among the separated service flows; and transmitting the uplink packet.