# US 11,310,794 B2 · Data transmission method in internet of vehicles and terminal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,310,794 B2 - Document ID: US11310794B2 - Status: Granted - Kind: B2 - Application number: 16/864,647 - Filed: 2020-05-01 - Published: 2020-08-13 - Granted: 2022-04-19 - Earliest claimed: 2017-11-02 - Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Inventors: Hai Tang - Web page: https://patentgrep.com/patent/US11310794B2 ## CPC - H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04L 1/0001: {Systems modifying transmission characteristics according to link quality, e.g. power backoff (adaptive data allocation for multicarrier modulation H04L5/0044; controlling transmission power for radio systems H04W52/04)} - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 4/46: for vehicle-to-vehicle communication [V2V] - H04W 72/02: Selection of wireless resources by user or terminal - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/0473: {the resource being transmission power} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - 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 The disclosure provides a data transmission method and a terminal in an Internet of Vehicles (IoV) system. In the embodiment of the present disclosure, the terminal may implement the data transmission method in the IoV system by determining a data transmission mode of a first carrier, then obtaining the multi-carrier transmission parameter of the first carrier if the data transmission mode of the first carrier is a multi-carrier transmission mode, and transmitting data on the first carrier using the multi-carrier transmission parameter. ## Claims ### Claim 1 A data transmission method performed by a terminal in an Internet of Vehicles (IoV) system, comprising: determining a data transmission mode of a first carrier; obtaining a multi-carrier transmission parameter of the first carrier, if the data transmission mode of the first carrier is a multi-carrier transmission mode; and performing data transmission on the first carrier by using the multi-carrier transmission parameter, wherein, the obtaining the multi-carrier transmission parameter of the first carrier comprises: obtaining a carrier state parameter of the first carrier; and obtaining the multi-carrier transmission parameter according to the carrier state parameter, and wherein, before obtaining the multi-carrier transmission parameter according to the carrier state parameter, the method further comprises: obtaining a correspondence relationship between the carrier state parameter and the multi-carrier transmission parameter; and obtaining the multi-carrier transmission parameter of the first carrier according to the carrier state parameter and the correspondence relationship. ### Claim 2 (depends on 1) The data transmission method according to claim 1, wherein, the multi-carrier transmission parameter comprises at least one of transmission power limit, coding and modulation mode limit, subchannel number limit, and physical resource block (PRB) number limit. ### Claim 3 (depends on 1) The data transmission method according to claim 1, wherein, the determining the data transmission mode of the first carrier comprises: determining whether the first carrier is used to carry one first transmission entity together with at least one second carrier; and determining that the data transmission mode of the first carrier is the multi-carrier transmission mode, if the first carrier is used to carry the one first transmission entity together with the at least one second carrier. ### Claim 4 (depends on 3) The data transmission method according to claim 3, wherein, the one first transmission entity is using the at least one second carrier to transmit data. ### Claim 5 (depends on 1) The data transmission method according to claim 1, wherein, the determining the data transmission mode of the first carrier comprises: determining whether at least one third carrier within a first carrier set to which the first carrier belongs is currently being used; and determining that the data transmission mode of the first carrier is the multi-carrier transmission mode, if the at least one third carrier in the first carrier set to which the first carrier belongs is currently being used. ### Claim 6 (depends on 1) The data transmission method according to claim 1, wherein, the multi-carrier transmission mode comprises a data repetition-based multi-carrier transmission mode. ### Claim 7 (depends on 6) The data transmission method according to claim 6, wherein, the determining the data transmission mode of the first carrier comprises: determining whether the first carrier is used to carry repeated data; and determining that the data transmission mode of the first carrier is the data repetition based multi-carrier transmission mode, if the first carrier is used to carry the repeated data. ### Claim 8 (depends on 7) The data transmission method according to claim 7, wherein, the repeated data comprises a repeated data unit of a Packet Data Convergence Protocol (PDCP) layer. ### Claim 9 (depends on 6) The data transmission method according to claim 6, wherein, the determining the data transmission mode of the first carrier comprises: determining whether the first carrier is used to carry a second transmission entity that transmits repeated data; and determining that the data transmission mode of the first carrier is the data repetition based multi-carrier transmission mode, if the first carrier is used to carry the second transmission entity that transmits the repeated data. ### Claim 10 (depends on 9) The data transmission method according to claim 9, wherein, the repeated data comprises a repeated data unit of a Packet Data Convergence Protocol (PDCP) layer. ### Claim 11 (depends on 9) The data transmission method according to claim 9, wherein, the repeated data comprises repeated data of a first Packet Data Convergence Protocol (PDCP) entity; data of the first PDCP entity is being transmitted by a third transmission entity, and the second transmission entity is used to transmit the repeated data of the first PDCP entity. ### Claim 12 (depends on 9) The data transmission method according to claim 9, wherein, the second transmission entity comprises a Radio Link Control (RLC) entity; the RLC entity corresponds to a logical channel. ### Claim 13 (depends on 1) The data transmission method according to claim 1, wherein, the carrier state parameter comprises at least one of a Channel Busy Ratio (CBR), a Received Signal Strength Indicator (RSSI), a service type, and a priority. ### Claim 14 (depends on 1) The data transmission method according to claim 1, wherein, the obtaining the correspondence relationship between the carrier state parameter and the multi-carrier transmission parameter comprises: obtaining the correspondence relationship between the carrier state parameter and the multi-carrier transmission parameter from a network device. ### Claim 15 (depends on 1) The data transmission method according to claim 1, wherein, the obtaining the correspondence relationship between the carrier state parameter and the multi-carrier transmission parameter comprises: obtaining the correspondence relationship between the carrier state parameter and the multi-carrier transmission parameter from a user card of the terminal. ### Claim 16 (depends on 1) The data transmission method according to claim 1, wherein, the obtaining the correspondence relationship between the carrier state parameter and the multi-carrier transmission parameter comprises: obtaining the correspondence relationship between the carrier state parameter and the multi-carrier transmission parameter from device information of the terminal. ### Claim 17 A terminal in an Internet of Vehicles (IoV) system, comprising: a determining unit, configured to determine a data transmission mode of a first carrier; an obtaining unit, configured to obtain a multi-carrier transmission parameter of the first carrier, if the data transmission mode of the first carrier is a multi-carrier transmission mode; and a transmission unit, configured to transmit data on the first carrier by using the multi-carrier transmission parameter, wherein, the obtaining unit is further configured to: before obtaining the multi-carrier transmission parameter of the first carrier, obtain a carrier state parameter of the first carrier; obtain a correspondence relationship between the carrier state parameter and the multi-carrier transmission parameter of the first carrier; and obtain the multi-carrier transmission parameter of the first carrier according to the carrier state parameter and the correspondence relationship. ### Claim 18 A non-transitory computer-readable storage medium having stored thereon computer instructions that, when executed by a processor of a terminal in an Internet of Vehicles (IoV) system, cause the terminal to: determine a data transmission mode of a first carrier; obtain a multi-carrier transmission parameter of the first carrier, if the data transmission mode of the first carrier is a multi-carrier transmission mode; and perform data transmission on the first carrier by using the multi-carrier transmission parameter, wherein, obtaining the multi-carrier transmission parameter of the first carrier comprises: obtaining a carrier state parameter of the first carrier; and obtaining the multi-carrier transmission parameter according to the carrier state parameter, and wherein, before obtaining the multi-carrier transmission parameter according to the carrier state parameter, terminal is further caused to: obtain a correspondence relationship between the carrier state parameter and the multi-carrier transmission parameter; and obtain the multi-carrier transmission parameter of the first carrier according to the carrier state parameter and the correspondence relationship.