A data transmission method, related equipment and system

Abstract

The embodiment of the present application discloses a data transmission method, related equipment, and system, involving vehicle-to-vehicle communication technology, V2X, smart cars, automatic driving, intelligent networked cars and other fields, wherein the method includes: the first communication device determines the N time-frequency resources, any two time-frequency resources in the N time-frequency resources are discontinuous in at least one of the time domain and the frequency domain, and each time-frequency resource in the N time-frequency resources is smaller than the time-frequency resource for transmitting the data to be transmitted required time-frequency resources, and the sum of N time-frequency resources is greater than or equal to the time-frequency resources required to transmit the data to be transmitted, N is a positive integer greater than or equal to 2; the first communication device M in the N time-frequency resources The first indication information is sent on the time-frequency resource, and the first indication information is used to indicate that N time-frequency resources are used for the first communication device to send data to be transmitted, and M is a positive integer less than or equal to N; Send the data to be transmitted on the frequency resource. By implementing the present application, the utilization rate of time-frequency resources can be improved.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a data transmission method, related equipment and system. Background technique [0002] Vehicle to everything (V2X) communication system includes vehicle to vehicle (Vehicle to Vehicle, V2V) intelligent transportation services, vehicle to people (Vehicle to Pedestrian, V2P), vehicle to infrastructure (Vehicle to Infrastructure, V2I) and vehicle Intelligent transportation services such as Vehicle to Network (V2N). Taking V2V as an example, V2V services use sidelinks (Sidelink, SL) for communication, that is, vehicles can communicate directly with each other, and the data communication between the two does not need to rely on base station forwarding. [0003] In the prior art, the sidelink only supports continuous resource allocation and does not support discontinuous resource allocation. That is, during V2V communication, the control information and data sent...

AI Technical Summary

Problems solved by technology

Since the current standard does not support discontinuous time-frequency resource allocation, when the user has business data arriving, if there are not enough continuous available transmission resources, the time-frequency resource 1 is not enough to transmit a data packet, and the time-frequency resource 2 is not enough to transmit a data packet However, the current sidelink transmission does not support the segmentation of data packets, which will cause untimely data transmission and increase the delay in waiting for transmission. At the same time, the fragmented discontinuous time-frequency resources have not been effectively utilized.

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