Data transmission method for sidelink communication, device, and system

A data transmission method for sidelink communication, the method being applied to a second Internet-of-vehicle device and comprising:

• receiving physical layer data on a target time-frequency resource;
• decoding and demodulating the physical layer data in order to obtain a (media access control packet data unit (MAC PDU);
• obtaining a destination reception geographical location from the MAC PDU;
• and
• transferring a user data packet in the MAC PDU to an application layer for processing when the destination reception geographical location and a geographical location of the second Internet-of-vehicle device satisfy a preset condition.

A data transmission method for sidelink communication, the method being applied to a first Internet-of-vehicle device and comprising:

• determining a destination reception geographical location of a user data packet;
• transmitting control information to a second Internet-of-vehicle device, wherein the control information is configured to indicate reception related information of physical layer data and carry the destination reception geographical location;
• and
• transmitting the physical layer data.

A data transmission method for sidelink communication, the method being applied to a second Internet-of-vehicle device and comprising:

• receiving control information sent by a first Internet-of-vehicle device, where the control information is configured to indicate reception related information of physical layer data;
• obtaining a destination reception geographical location from the control information;
• and
• receiving the physical layer data based on the control information when the destination reception geographical location and a geographical location of the second Internet-of-vehicle device satisfying a preset condition.