# US 11,910,361 B2 · Multi-stage sidelink control information > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,361 B2 - Document ID: US11910361B2 - Status: Granted - Kind: B2 - Application number: 17/672,257 - Filed: 2022-02-15 - Published: 2022-06-02 - Granted: 2024-02-20 - Earliest claimed: 2022-02-15 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Shehzad Ali Ashraf; Ricardo Blasco Serrano; Gabor Fodor; Jingya Li - Web page: https://patentgrep.com/patent/US11910361B2 ## CPC - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 72/02: Selection of wireless resources by user or terminal - H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC] - H04W 72/20: Control channels or signalling for resource management - H04W 72/53: based on regulatory allocation policies - H04W 72/56: based on priority criteria - H04W 76/14: Direct-mode setup - 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 A radio device receives first sidelink control information from a further radio device. Based on assistance information stored in the radio device and the received first sidelink control information, the radio device determines a configuration for transmission of second sidelink control information. Based on the determined configuration for transmission of the second sidelink control information, the radio device receives the second sidelink control information from the further radio device. Based on the received second sidelink control information, the radio device receives a sidelink radio transmission from the further radio device. ## Claims ### Claim 1 A method of controlling sidelink radio transmissions in a wireless communication network, the method comprising: a radio device receiving first sidelink control information from a further radio device, wherein the first sidelink control information comprises information for sensing-based allocation of radio resources for a sidelink radio transmission; based on assistance information stored in the radio device and the received first sidelink control information, the radio device determining a configuration for transmission of second sidelink control information; based on the determined configuration for transmission of the second sidelink control information, the radio device receiving the second sidelink control information from the further radio device; and based on the received second sidelink control information, the radio device receiving a sidelink radio transmission from the further radio device. ### Claim 2 (depends on 1) The method according to claim 1, wherein the assistance information defines multiple candidate configurations for transmission of the second sidelink control information; and wherein the first sidelink control information identifies the configuration for transmission of the second sidelink control information among the candidate configurations. ### Claim 3 (depends on 1) The method according to claim 1, wherein the second sidelink control information comprises information indicating at least one of: radio resources to be used for the sidelink radio transmission a modulation and/or coding scheme to be used for the sidelink radio transmission, one or more retransmission parameters of the sidelink radio transmission, and a priority level of the sidelink radio transmission. ### Claim 4 (depends on 1) The method according to claim 1, wherein a first part of the configuration for transmission of the second sidelink control information is defined by the first sidelink control information and a second part of the configuration for transmission of the second sidelink control information is defined by the assistance information. ### Claim 5 (depends on 2) The method according to claim 2, wherein the first sidelink control information comprises an index identifying the configuration for transmission of the second sidelink control information among the candidate configurations. ### Claim 6 (depends on 1) The method according to claim 1, wherein the radio device comprises a vehicle. ### Claim 7 A method of controlling sidelink radio transmissions in a wireless communication network, the method comprising: based on assistance information stored in a radio device, the radio device determining first sidelink control information, the assistance information relating the first sidelink control information to a configuration for transmission of second sidelink control information, the first sidelink control information comprising information for sensing-based allocation of radio resources for a sidelink radio transmission; the radio device sending the first sidelink control information to a further radio device; based on the configuration, the radio device sending the second sidelink control information to the further radio device; and based on the second sidelink control information, the radio device sending a sidelink radio transmission to the further radio device. ### Claim 8 (depends on 7) The method according to claim 7, wherein the assistance information defines multiple candidate configurations for transmission of the second sidelink control information; and wherein the first sidelink control information identifies the configuration for transmission of the second sidelink control information among the candidate configurations. ### Claim 9 (depends on 7) The method according to claim 7, wherein the second sidelink control information comprises information indicating at least one of: radio resources to be used for the sidelink radio transmission, a modulation and/or coding scheme to be used for the sidelink radio transmission, one or more retransmission parameters of the sidelink radio transmission, and a priority level of the sidelink radio transmission. ### Claim 10 (depends on 7) The method according to claim 7, wherein a first part of the configuration for transmission of the second sidelink control information is defined by the first sidelink control information and a second part of the configuration for transmission of the second sidelink control information is defined by the assistance information. ### Claim 11 (depends on 8) The method according to claim 8, wherein the first sidelink control information comprises an index identifying the configuration for transmission of the second sidelink control information among the candidate configurations. ### Claim 12 (depends on 7) The method according to claim 7, wherein the radio device comprises a vehicle. ### Claim 13 (depends on 1) A computer program product comprising a non-transitory computer readable medium having program code to be executed by at least one processor of a radio device, whereby execution of the program code causes the radio device to perform a method according to claim 1. ### Claim 14 (depends on 7) A computer program product comprising a non-transitory computer readable medium having program code to be executed by at least one processor of a radio device, whereby execution of the program code causes the radio device to perform a method according to claim 7. ### Claim 15 A radio device for a wireless communication network, the radio device comprising: a processor; and a memory coupled with the processor, the memory containing instructions executable by the processor whereby the radio device is operative to: receive first sidelink control information from a further radio device, the first sidelink control information comprising information for sensing-based allocation of radio resources for a sidelink radio transmission; based on assistance information stored in the radio device and the received first sidelink control information, determine a configuration for transmission of second sidelink control information; based on the determined configuration for transmission of the second sidelink control information, receive the second sidelink control information from the further radio device; and based on the received second sidelink control information, receive a sidelink radio transmission from the further radio device. ### Claim 16 (depends on 15) The radio device according to claim 15, wherein the assistance information defines multiple candidate configurations for transmission of the second sidelink control information; and wherein the first sidelink control information identifies the configuration for transmission of the second sidelink control information among the candidate configurations. ### Claim 17 (depends on 15) The radio device according to claim 15, wherein the second sidelink control information comprises information indicating at least one of: radio resources to be used for the sidelink radio transmission a modulation and/or coding scheme to be used for the sidelink radio transmission, one or more retransmission parameters of the sidelink radio transmission, and a priority level of the sidelink radio transmission. ### Claim 18 (depends on 15) The radio device according to claim 15, wherein a first part of the configuration for transmission of the second sidelink control information is defined by the first sidelink control information and a second part of the configuration for transmission of the second sidelink control information is defined by the assistance information. ### Claim 19 (depends on 16) The radio device according to claim 16, wherein the first sidelink control information comprises an index identifying the configuration for transmission of the second sidelink control information among the candidate configurations. ### Claim 20 (depends on 15) The radio device according to claim 15, wherein the radio device comprises a vehicle. ### Claim 21 A radio device for a wireless communication network, the radio device comprising: a processor; and a memory coupled with the processor, the memory containing instructions executable by the processor whereby the radio device is operative to: based on assistance information stored in the radio device, determine first sidelink control information, the assistance information relating the first sidelink control information to a configuration for transmission of second sidelink control information, wherein the first sidelink control information comprises information for sensing-based allocation of radio resources for a sidelink radio transmission; send the first sidelink control information to a further radio device; based on the configuration, send the second sidelink control information to the further radio device; and based on the second sidelink control information, send a sidelink radio transmission to the further radio device. ### Claim 22 (depends on 21) The radio device according to claim 21, wherein the assistance information defines multiple candidate configurations for transmission of the second sidelink control information; and wherein the first sidelink control information identifies the configuration for transmission of the second sidelink control information among the candidate configurations. ### Claim 23 (depends on 21) The radio device according to claim 21, wherein the second sidelink control information comprises information indicating at least one of: radio resources to be used for the sidelink radio transmission, a modulation and/or coding scheme to be used for the sidelink radio transmission, one or more retransmission parameters of the sidelink radio transmission, and a priority level of the sidelink radio transmission. ### Claim 24 (depends on 21) The radio device according to claim 21, wherein a first part of the configuration for transmission of the second sidelink control information is defined by the first sidelink control information and a second part of the configuration for transmission of the second sidelink control information is defined by the assistance information. ### Claim 25 (depends on 22) The radio device according to claim 22, wherein the first sidelink control information comprises an index identifying the configuration for transmission of the second sidelink control information among the candidate configurations. ### Claim 26 (depends on 21) The radio device according to claim 21, wherein the radio device comprises a vehicle.