# US 2021/0243754 A1 · Parameter set acquisition method and device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243754 A1 - Document ID: US20210243754A1 - Status: Published application - Kind: A1 - Application number: 17/265,404 - Filed: 2018-08-03 - Published: 2021-08-05 - Earliest claimed: 2018-08-03 - Assignees: Beijing Xiaomi Mobile Software Co., Ltd. - Applicants: Beijing Xiaomi Mobile Software Co., Ltd. - Inventors: Qun ZHAO - Web page: https://patentgrep.com/patent/US20210243754A1 ## CPC - H04W 56/002: {Mutual synchronization} - H04W 72/51: based on terminal or device properties - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0092: {Indication of how the channel is divided} - H04W 72/044: based on the type of the allocated resource - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 27/261: {Details of reference signals} - H04W 76/14: Direct-mode setup - H04W 88/04: adapted for relaying to or from another terminal or user - 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) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Aspects of the disclosure can provide a parameter set acquisition method and device. The method can include acquiring a target parameter set corresponding to information to be transmitted. The information to be transmitted can have at least one of the following information types: synchronization signal, direct link broadcast information, physical layer control information or user data. The method can further include using the target parameter set to transmit the information to be transmitted. ## Claims ### Claim 1 A method for acquiring a parameter set that is applicable to user equipment for a side-link communication, comprising: acquiring a target parameter set corresponding to information to be transmitted, the information to be transmitted having an information type that is at least one of a synchronization signal, side-link broadcast information, physical layer control information or user data; and transmitting the information to be transmitted by using the target parameter set. ### Claim 2 (depends on 1) The method according to claim 1, wherein acquiring the target parameter set further comprises: receiving configuration information sent by a base station, the configuration information including the target parameter set for the user equipment to transmit the information to be transmitted; and parsing the configuration information to obtain the target parameter set corresponding to the information to be transmitted. ### Claim 3 (depends on 1) The method according to claim 1, wherein acquiring the target parameter set further comprises: receiving downlink control information sent by a base station, wherein the downlink control information including the target parameter set for the user equipment to transmit the information to be transmitted; and parsing the downlink control information to obtain the target parameter set corresponding to the information to be transmitted. ### Claim 4 (depends on 1) The method according to claim 1, wherein acquiring the target parameter set further comprises: acquiring a target carrier frequency band for transmitting the information to be transmitted; and acquiring the target parameter set corresponding to the target carrier frequency band based on a preset correspondence between carrier frequency bands and parameter sets. ### Claim 5 (depends on 1) The method according to claim 1, wherein acquiring the target parameter set further comprises: acquiring the target parameter set corresponding to the information to be transmitted based on a preset correspondence between information types and parameter sets. ### Claim 6 (depends on 1) The method according to claim 1, wherein acquiring the target parameter set further comprises: acquiring a time-frequency resource set for transmitting the information to be transmitted; and acquiring the target parameter set corresponding to the time-frequency resource set based on a preset correspondence between time-frequency resource sets and parameter sets. ### Claim 7 (depends on 1) The method according to claim 1, wherein acquiring the target parameter set further comprises: receiving a synchronization signal or side-link broadcast information sent by a peer-end device; determining a parameter set used by the peer-end device to transmit at least one of physical layer control information or user data based on the synchronization signal or the side-link broadcast information; and determining the parameter set as the target parameter set for the user equipment to transmit the information to be transmitted. ### Claim 8 (depends on 7) The method according to claim 7, wherein determining the parameter set used by the peer-end device further comprises: detecting a parameter set used by the peer-end device when sending the synchronization signal or the side-link broadcast information; and determining the parameter set used by the peer-end device to transmit the at least one of the physical layer control information or the user data based on the parameter set used by the peer-end device when sending the synchronization signal or the side-link broadcast information. ### Claim 9 (depends on 7) The method according to claim 7, wherein determining the parameter set used by the peer-end device further comprises: acquiring a synchronization signal sequence or a reference sequence of side-link broadcast information used by the peer-end device based on the synchronization signal or the side-link broadcast information; and determining the parameter set used by the peer-end device to transmit the at least one of the physical layer control information or the user data based on a preset correspondence between the synchronization signal sequence or the reference sequence of side-link broadcast information and the parameter set. ### Claim 10 (depends on 7) The method according to claim 7, wherein the synchronization signal or the side-link broadcast information sent by the peer-end device includes first indication information indicating the parameter set used by the peer-end device to transmit the at least one of the physical layer control information or the user data, and the determining the parameter set used by the peer-end device to transmit the at least one of the physical layer control information or the user data based on the synchronization signal or the side-link broadcast information further comprises: parsing the synchronization signal or the side-link broadcast information sent by the peer-end device to obtain the parameter set used by the peer-end device to transmit the at least one of the physical layer control information or the user data based on the first indication information. ### Claim 11 (depends on 1) The method according to claim 1, wherein acquiring the target parameter set corresponding to the information to be transmitted further comprises: receiving a synchronization signal or side-link broadcast information sent by a peer-end device; and determining the parameter set used by the peer-end device to send the synchronization signal or the side-link broadcast information as the target parameter set used by the user equipment to send the synchronization signal or the side-link broadcast information when the synchronization signal sent by the peer-end device is determined as a synchronization reference signal for the user equipment to send signals. ### Claim 12 (depends on 1) The method according to claim 1, wherein acquiring the target parameter set corresponding to the information to be transmitted comprises: receiving physical layer control information sent by a peer-end device, the physical layer control information carrying second indication information indicating a parameter set used when transmitting at least one of user data or feedback information; and parsing the physical layer control information to obtain the target parameter set used by the user equipment when transmitting the at least one of the user data or the feedback information. ### Claim at position 13 13-24. (canceled) ### Claim 25 A device for acquiring a parameter set, comprising: a processor; a memory configured to store instructions executable by the processor, wherein the processor is configured to: acquire a target parameter set corresponding to information to be transmitted, the information to be transmitted having an information type that is at least one of a synchronization signal, side-link broadcast information, physical layer control information, or user data; and transmit the information to be transmitted by using the target parameter set. ### Claim 26 A non-transitory computer-readable storage medium having computer instructions stored thereon that, when executed by a processor, cause the processor to perform operations comprising: acquiring a target parameter set corresponding to information to be transmitted, the information to be transmitted having an information type that is at least one of a synchronization signal, side-link broadcast information, physical layer control information or user data; and transmitting the information to be transmitted by using the target parameter set. ### Claim 27 (depends on 25) The device according to claim 25, wherein the processor is further configured to acquire the target parameter set corresponding to the information to be transmitted by: receiving configuration information sent by a base station, wherein the configuration information comprises including the target parameter set for the user equipment to transmit the information to be transmitted; and parsing the configuration information to obtain the target parameter set corresponding to the information to be transmitted. ### Claim 28 (depends on 25) The device according to claim 25, wherein the processor is further configured to acquire the target parameter set corresponding to the information to be transmitted by: receiving downlink control information sent by a base station, wherein the downlink control information comprises including the target parameter set for the user equipment to transmit the information to be transmitted; and parsing the downlink control information to obtain the target parameter set corresponding to the information to be transmitted. ### Claim 29 (depends on 25) The device according to claim 25, wherein the processor is further configured to acquire the target parameter set corresponding to the information to be transmitted by: acquiring a target carrier frequency band for transmitting the information to be transmitted; and acquiring the target parameter set corresponding to the target carrier frequency band based on a preset correspondence between carrier frequency bands and parameter sets. ### Claim 30 (depends on 25) The device according to claim 25, wherein the processor is further configured to acquire the target parameter set corresponding to the information to be transmitted by: acquiring the target parameter set corresponding to the information to be transmitted based on a preset correspondence between information types and parameter sets. ### Claim 31 (depends on 25) The device according to claim 25, wherein the processor is further configured to acquire the target parameter set corresponding to the information to be transmitted by: acquiring a time-frequency resource set for transmitting the information to be transmitted; and acquiring the target parameter set corresponding to the time-frequency resource set based on a preset correspondence between time-frequency resource sets and parameter sets. ### Claim 32 (depends on 25) The device according to claim 25, wherein the processor is further configured to acquire the target parameter set corresponding to the information to be transmitted by: receiving a synchronization signal or side-link broadcast information sent by a peer-end device; determining a parameter set used by the peer-end device to transmit at least one of physical layer control information and/or user data based on the synchronization signal or the side-link broadcast information; and determining the parameter set as the target parameter set for the user equipment to transmit the information to be transmitted.