# US 2023/0422101 A1 · Method and apparatus for controlling sidelink qos > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0422101 A1 - Document ID: US20230422101A1 - Status: Published application - Kind: A1 - Application number: 18/456,034 - Filed: 2023-08-25 - Published: 2023-12-28 - Earliest claimed: 2018-08-10 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Congchi ZHANG; Marco BELLESCHI; Zhang ZHANG; Yunxi LI - Web page: https://patentgrep.com/patent/US20230422101A1 ## CPC - H04W 28/24: Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service] - H04W 76/00: Connection management - 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)} - H04W 76/14: Direct-mode setup - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 92/18: between terminal devices - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present application generally relates to wireless communication technology. More particularly, it relates to a method and apparatus for controlling sidelink (SL) Quality of Service (QoS). According to one or more embodiments, a method for controlling sidelink (SL) Quality of Service (QoS) comprising the following steps carried out at a User Equipment (UE): a) generating QoS requirement from characteristics for one or more packets to be transmitted via a sidelink; b) determining bearer configuration corresponding to the QoS requirement; and c) performing SL transmission on the basis of the bearer configuration. ## Claims ### Claim 1 A method for controlling sidelink (SL) Quality of Service (QoS), be characterized by comprising the following steps carried out at a User Equipment (UE): a) generating QoS requirement from characteristics for one or more packets to be transmitted via a sidelink; b) determining bearer configuration corresponding to the QoS requirement; and c) performing SL transmission on the basis of the bearer configuration. ### Claim 2 (depends on 1) The method according to claim 1, wherein the UE is out of coverage of a cellular network. ### Claim 3 (depends on 2) The method according to claim 2, wherein a mapping relationship between the QoS requirement and the bearer configuration is received from a network node and stored at the UE while the UE is in-coverage of the cellular network, or preconfigured at the UE. ### Claim 4 (depends on 1) The method according to claim 1, wherein the characteristics are defined in a packet header complying with a protocol layer above Access Stratum (AS). ### Claim 5 (depends on 1) The method according to claim 1, the step a) comprising converting the characteristics into corresponding QoS requirement on the basis of a mapping relationship between the characteristics and the QoS requirement. ### Claim 6 (depends on 5) The method according to claim 5, the mapping relationship between the characteristics and the QoS requirement is received from network node and stored at the UE while the UE is in-coverage of the cellular network, or preconfigured at the UE. ### Claim 7 (depends on 5) The method according to claim 5, wherein one or more candidate mapping relationships between the characteristics and the QoS requirement are received from the network node while the UE is in-coverage of the cellular network and stored at the UE, each of which corresponds to one or more operational modes, and the operational mode comprises a Radio Resource Control (RRC) connected mode, an RRC idle mode and Out of coverage (OoC) mode. ### Claim 8 (depends on 7) The method according to claim 7, the mapping relationship between the characteristics and the QoS requirement is selected from the one or more candidate mapping relationships depending on which operational mode the UE operates in. ### Claim 9 (depends on 3) The method according to claim 3, wherein the mapping relationship between the QoS requirement and the bearer configuration is received via broadcast from the network node. ### Claim 10 (depends on 7) The method according to claim 7, wherein the candidate mapping relationships between the characteristics and the QoS requirement are received via broadcast from the network node. ### Claim 11 (depends on 7) The method according to claim 7, wherein at least two of the candidate mapping relationships are received from the network node while the UE is in-coverage of the cellular network and stored at the UE. ### Claim 12 A User Equipment (UE) with sidelink (SL) Quality of Service (QoS) controlling function be characterized by comprising: a storage device configured to store a computer program comprising computer instructions; and a processor coupled to the storage device and configured to execute the computer instructions to: a) generating QoS requirement from characteristics for one or more packets to be transmitted via a sidelink; b) determining bearer configuration corresponding to the QoS requirement; and c) performing SL transmission on the basis of the bearer configuration. ### Claim 13 (depends on 12) The UE according to claim 12, wherein the UE is out of coverage of a cellular network. ### Claim 14 (depends on 13) The UE according to claim 13, wherein a mapping relationship between the QoS requirement and the bearer configuration is received from a network node and stored at the UE while the UE is in-coverage of the cellular network, or preconfigured at the UE. ### Claim 15 (depends on 12) The UE according to claim 12, wherein the characteristics are defined in a packet header complying with a protocol layer above Access Stratum (AS). ### Claim 16 (depends on 12) The UE according to claim 12, the step a) comprising converting the characteristics into corresponding QoS requirement on the basis of a mapping relationship between the characteristics and the QoS requirement. ### Claim 17 (depends on 16) The UE according to claim 16, the mapping relationship between the characteristics and the QoS requirement is received from network node and stored at the UE while the UE is in-coverage of the cellular network, or preconfigured at the UE. ### Claim 18 (depends on 16) The UE according to claim 16, wherein one or more candidate mapping relationships between the characteristics and the QoS requirement are received from the network node while the UE is in-coverage of the cellular network and stored at the UE, each of which corresponds to one or more operational modes, and the operational mode comprises a Radio Resource Control (RRC) connected mode, an RRC idle mode and Out of coverage (OoC) mode. ### Claim 19 (depends on 18) The UE according to claim 18, the mapping relationship between the characteristics and the QoS requirement is selected from the one or more candidate mapping relationships depending on which operational mode the UE operates in. ### Claim 20 (depends on 14) The UE according to claim 14, wherein the mapping relationship between the QoS requirement and the bearer configuration is received via broadcast from the network node. ### Claim 21 (depends on 18) The UE according to claim 18, wherein the candidate mapping relationships between the characteristics and the QoS requirement are received via broadcast from the network node. ### Claim 22 (depends on 18) The UE according to claim 18, wherein at least two of the candidate mapping relationships are received from the network node while the UE is in-coverage of the cellular network and stored at the UE. ### Claim 23 A computer program product for controlling sidelink (SL) Quality of Service (QoS) in a cellular network, the computer program product comprising: a non-transitory computer readable medium storing program code configured for execution by processing circuitry of a terminal device to cause the processing circuitry to perform operations, the operations comprising: a) generating QoS requirement from characteristics for one or more packets to be transmitted via a sidelink; b) determining bearer configuration corresponding to the QoS requirement; and c) performing SL transmission on the basis of the bearer configuration.