Sidelink data transmission method and apparatus, and terminal

A sidelink data transmission method, applied to a first terminal, comprising:

• determining a time-frequency resource location of each of a first transmission resource and a second transmission resource for data transmission;
• transmitting data on the first transmission resource, wherein the data that is transmitted comprises at least sidelink control information (SCI) used to indicate the time-frequency resource location of the second transmission resource;
• and the second transmission resource is transmitted after the first transmission resource;
• and
• determining a target transmission resource of a resource conflict indication channel used to receive resource conflict indication information, wherein the resource conflict indication information is used to indicate that a resource conflict occurs on the second transmission resource,
• wherein there is at least a minimum interval time between the first transmission resource and the second transmission resource, and the minimum interval time comprises a first interval time and a second interval time;
• and
• there is at least a first interval time between the first transmission resource and the target transmission resource, and there is at least a second interval time between the target transmission resource and the second transmission resource.