# US 12,010,558 B2 · Data transmission method and related apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,558 B2 - Document ID: US12010558B2 - Status: Granted - Kind: B2 - Application number: 17/512,742 - Filed: 2021-10-28 - Published: 2022-02-17 - Granted: 2024-06-11 - Earliest claimed: 2019-11-13 - Assignees: Tencent Technology (Shenzhen) Company Limited - Applicants: Tencent Technology (Shenzhen) Company Limited - Inventors: Chunshan Xiong - Web page: https://patentgrep.com/patent/US12010558B2 ## CPC - H04W 28/24: Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service] - H04L 47/2416: Real-time traffic - H04L 47/2425: for supporting services specification, e.g. SLA - H04L 47/2491: Mapping quality of service [QoS] requirements between different networks - H04L 47/28: in relation to timing considerations - H04L 47/283: in response to processing delays, e.g. caused by jitter or round trip time [RTT] - H04W 28/0236: {radio quality, e.g. interference, losses or delay} - 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)} - H04W 76/10: Connection setup - 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 A data transmission method in which a UE initiates a TSC communication request to establish a TSC transmission channel between a first UE and a second UE is provided. The method includes receiving a TSC communication request that is transmitted by a first UE and that carries a first TSC session requirement parameter, determining a QoS requirement of a first service flow and a QoS requirement of a second service flow according to the first TSC session requirement parameter, and transmitting the QoS requirement of the first service flow to a first PCF, the QoS requirement of the first service flow being for being mapped to a QoS policy of the first service flow by using the first PCF, and transmitting the QoS requirement of the second service flow to a second PCF, the QoS requirement of the second service flow being mapped to a QoS policy of the second service flow by using the second PCF, and the QoS policy of the first service flow and the QoS policy of the second service flow being respectively used for establishing a first QoS flow and a second QoS flow by a first SMF and a second SMF. Apparatus and non-transitory computer-readable medium counterpart embodiments are also provided. ## Claims ### Claim 1 A data transmission method, comprising: receiving, by a first network device, a time sensitive communication (TSC) communication request transmitted by a first user equipment (UE), the TSC communication request including a first TSC session requirement parameter comprising an identifier of a second UE and a quality of service (QOS) requirement of a TSC session; determining, by the first network device based on the first TSC session requirement parameter included in the TSC communication request, a QoS requirement of a first service flow, a QoS requirement of a second service flow, first information to be transmitted to a first policy control function (PCF) corresponding to the first UE, and second information to be transmitted to a second PCF corresponding to the second UE; transmitting, by the first network device, the determined QoS requirement of the first service flow and the determined first information to the first PCF corresponding to the first UE; and transmitting, by the first network device, the determined QoS requirement of the second service flow and the determined second information to the second PCF corresponding to the second UE according to the identifier of the second UE. ### Claim 2 (depends on 1) The method according to claim 1, wherein the determining further comprises: determining, by the first network device, a latency requirement in the QoS requirement of the first service flow and a latency requirement in the QoS requirement of the second service flow. ### Claim 3 (depends on 2) The method according to claim 2, wherein the determining further comprises: determining, by the first network device when the first UE and the second UE are connected to different UPF network elements, the latency requirement in the determined QoS requirement of the first service flow according to a latency in the first TSC session requirement parameter, a latency between the first UE and a device-side TSN translator (DS-TT), a transmission latency of a network-side TSN translator (NW-TT) of the first UE, a latency between the second UE and the DS-TT, and a transmission latency of an NW-TT of the second UE; and determining the latency requirement in the determined QoS requirement of the second service flow according to the latency in the first TSC session requirement parameter, the latency between the first UE and the DS-TT, the transmission latency of the NW-TT of the first UE, the latency between the second UE and the DS-TT, and the transmission latency of the NW-TT of the second UE. ### Claim 4 (depends on 2) The method according to claim 2, wherein the determining further comprises: determining, by the first network device when the first UE and the second UE are connected to a same UPF network element, the latency requirement in the determined QoS requirement of the first service flow according to a latency in the first TSC session requirement parameter, a latency between the first UE and a DS-TT, and a latency between the second UE and the DS-TT; and determining the latency requirement in the determined QoS requirement of the second service flow according to the latency in the first TSC session requirement parameter, the latency between the first UE and the DS-TT, and the latency between the second UE and the DS-TT. ### Claim 5 (depends on 2) The method according to claim 2, wherein the transmitting the determined QoS requirement of the first service flow includes transmitting, by the first network device, the latency requirement in the determined QoS requirement of the first service flow to the first PCF, so that a first session management function (SMF) sets a PDB value of the first QoS flow to be less than or equal to a latency value in the QoS policy of the first service flow, the latency value in the QoS policy of the first service flow being obtained by the first PCF according to a value corresponding to the latency requirement in the determined QoS requirement of the first service flow; and the transmitting the determined QoS requirement of the second service flow includes transmitting, by the first network device, the latency requirement in the determined QoS requirement of the second service flow to the second PCF, so that a second SMF sets a PDB value of the second QoS flow to be less than or equal to a latency value in the QoS policy of the second service flow, the latency value in the QoS policy of the second service flow being obtained by the second PCF according to a value corresponding to the latency requirement in the determined QoS requirement of the second service flow. ### Claim 6 (depends on 1) The method according to claim 1, further comprising: determining, by the first network device, the first PCF according to an identifier of the first UE. ### Claim 7 (depends on 1) The method according to claim 1, wherein the transmitting the determined QoS requirement of the second service flow and the determined second information to the second PCF further comprises: determining, by the first network device, the second PCF corresponding to the second UE according to the identifier of the second UE; and transmitting, by the first network device, the determined QoS requirement of the second service flow and the determined second information to the determined second PCF. ### Claim 8 (depends on 1) The method according to claim 1, wherein the determined first information comprises port configuration information of a DS-TT and a first UPF of the first UE, and the determined second information comprises port configuration information of a DS-TT and a second UPF of the second UE. ### Claim 9 A first network device, comprising: processing circuitry configured to: receive a time sensitive communication (TSC) communication request transmitted by a first user equipment (UE), the TSC communication request including a first TSC session requirement parameter comprising an identifier of a second UE and a quality of service (QOS) requirement of a TSC session; determine, based on the first TSC session requirement parameter included in the TSC communication request, a QoS requirement of a first service flow, a QoS requirement of a second service flow, first information to be transmitted to a first policy control function (PCF) corresponding to the first UE, and second information to be transmitted to a second PCF corresponding to the second UE; transmit the determined QoS requirement of the first service flow and the determined first information to the first PCF corresponding to the first UE; and transmit the determined QoS requirement of the second service flow and the determined second information to the second PCF corresponding to the second UE according to the identifier of the second UE. ### Claim 10 (depends on 9) The first network device according to claim 9, wherein the processing circuitry is configured to: determine a latency requirement in the QoS requirement of the first service flow and a latency requirement in the QoS requirement of the second service flow. ### Claim 11 (depends on 10) The first network device according to claim 10, wherein the processing circuitry is configured to: determine, when the first UE and the second UE are connected to different UPF network elements, the latency requirement in the determined QoS requirement of the first service flow according to a latency in the first TSC session requirement parameter, a latency between the first UE and a device-side TSN translator (DS-TT), a transmission latency of a network-side TSN translator (NW-TT) of the first UE, a latency between the second UE and the DS-TT, and a transmission latency of an NW-TT of the second UE; and determine the latency requirement in the determined QoS requirement of the second service flow according to the latency in the first TSC session requirement parameter, the latency between the first UE and the DS-TT, the transmission latency of the NW-TT of the first UE, the latency between the second UE and the DS-TT, and the transmission latency of the NW-TT of the second UE. ### Claim 12 (depends on 10) The first network device according to claim 10, wherein the processing circuitry is configured to: determine, when the first UE and the second UE are connected to a same UPF network element, the latency requirement in the determined QoS requirement of the first service flow according to a latency in the first TSC session requirement parameter, a latency between the first UE and a DS-TT, and a latency between the second UE and the DS-TT; and determine the latency requirement in the determined QoS requirement of the second service flow according to the latency in the first TSC session requirement parameter, the latency between the first UE and the DS-TT, and the latency between the second UE and the DS-TT. ### Claim 13 (depends on 10) The first network device according to claim 10, wherein the processing circuitry is configured to: transmit the latency requirement in the determined QOS requirement of the first service flow to the first PCF, so that a first session management function (SMF) sets a PDB value of the first QoS flow to be less than or equal to a latency value in the QoS policy of the first service flow, the latency value in the QoS policy of the first service flow being obtained by the first PCF according to a value corresponding to the latency requirement in the determined QoS requirement of the first service flow; and transmit the latency requirement in the determined QoS requirement of the second service flow to the second PCF, so that a second SMF sets a PDB value of the second QoS flow to be less than or equal to a latency value in the QoS policy of the second service flow, the latency value in the QoS policy of the second service flow being obtained by the second PCF according to a value corresponding to the latency requirement in the determined QoS requirement of the second service flow. ### Claim 14 (depends on 9) The first network device according to claim 9, wherein the processing circuitry is configured to: determine the first PCF according to an identifier of the first UE. ### Claim 15 (depends on 9) The first network device according to claim 9, wherein the processing circuitry is configured to: determine the second PCF corresponding to the second UE according to the identifier of the second UE; and transmit the determined QoS requirement of the second service flow and the determined second information to the determined second PCF. ### Claim 16 (depends on 9) The first network device according to claim 9, wherein the determined first information comprises port configuration information of a DS-TT and a first UPF of the first UE, and the determined second information comprises port configuration information of a DS-TT and a second UPF of the second UE. ### Claim 17 A non-transitory computer-readable storage medium storing instructions which when executed by a processor of a first network device, cause the processor to perform: receiving a time sensitive communication (TSC) communication request transmitted by a first user equipment (UE), the TSC communication request including a first TSC session requirement parameter comprising an identifier of a second UE and a quality of service (QOS) requirement of a TSC session; determining, based on the first TSC session requirement parameter included in the TSC communication request, a QOS requirement of a first service flow, a QoS requirement of a second service flow, first information to be transmitted to a first policy control function (PCF) corresponding to the first UE, and second information to be transmitted to a second PCF corresponding to the second UE; transmitting, by the first network device, the determined QoS requirement of the first service flow and the determined first information to the first PCF corresponding to the first UE; and transmitting, by the first network device, the determined QoS requirement of the second service flow and the determined second information to the second PCF corresponding to the second UE according to the identifier of the second UE. ### Claim 18 (depends on 17) The non-transitory computer-readable storage medium according to claim 17, wherein the determining further comprises: determining, by the first network device, a latency requirement in the QoS requirement of the first service flow and a latency requirement in the QoS requirement of the second service flow. ### Claim 19 (depends on 18) The non-transitory computer-readable storage medium according to claim 18, wherein the determining further comprises: determining, by the first network device when the first UE and the second UE are connected to different UPF network elements, the latency requirement in the determined QoS requirement of the first service flow according to a latency in the first TSC session requirement parameter, a latency between the first UE and a device-side TSN translator (DS-TT), a transmission latency of a network-side TSN translator (NW-TT) of the first UE, a latency between the second UE and the DS-TT, and a transmission latency of an NW-TT of the second UE; and determining the latency requirement in the determined QoS requirement of the second service flow according to the latency in the first TSC session requirement parameter, the latency between the first UE and the DS-TT, the transmission latency of the NW-TT of the first UE, the latency between the second UE and the DS-TT, and the transmission latency of the NW-TT of the second UE. ### Claim 20 (depends on 18) The non-transitory computer-readable storage medium according to claim 18, wherein the determining further comprises: determining, by the first network device when the first UE and the second UE are connected to a same UPF network element, the latency requirement in the determined QoS requirement of the first service flow according to a latency in the first TSC session requirement parameter, a latency between the first UE and a DS-TT, and a latency between the second UE and the DS-TT; and determining the latency requirement in the determined QoS requirement of the second service flow according to the latency in the first TSC session requirement parameter, the latency between the first UE and the DS-TT, and the latency between the second UE and the DS-TT.