Time-Frequency Control Method Based on Internet of Vehicles

Abstract

The present invention provides a time-frequency control method based on Internet of Vehicles. The method includes: receiving a set of SCMA resources, wherein the SCMA resources include a first SCMA partition and a second SCMA partition; wherein the first SCMA partition and the first group Time-frequency resources are associated, and a second SCMA partition is associated with a second group of time-frequency resources; determining a plurality of parameters associated with the SCMA transmission, wherein the parameters include reliability, delay, and signal-to-noise ratio; based on the determined Parameters to determine the SCMA partition associated with the SCMA transmission, the SCMA partition includes the first SCMA partition or the second SCMA partition; receive the SCMA signature set; based on the determined SCMA partition, determine the SCMA from the received SCMA signature set Signature; using the determined SCMA signature to send the SCMA transmission in the determined SCMA partition. The present invention proposes a time-frequency control method based on the Internet of Vehicles, and adaptively adjusts the channel according to the complex and changeable environment of V2X, so as to improve the reliability of the entire Internet of Vehicles system while reducing the communication delay.

Description

technical field [0001] The invention relates to the Internet of Vehicles, in particular to a time-frequency control method based on the Internet of Vehicles. Background technique [0002] As an important key technology for environment perception, information interaction and collaborative control in the Internet of Vehicles, V2X enables interactive communication between V2V, V2R, V2P and V2I, and obtains a series of traffic information such as real-time road conditions, road information, and pedestrian information, thereby improving traffic conditions. Driving safety, reducing congestion, and improving traffic efficiency. With the continuous development of V2X technology, especially autonomous vehicles, higher requirements are placed on the communication delay of real-time data. At the same time, the requirements for ultra-low latency and high reliability scenarios in 5G also put forward higher requirements for the air interface latency of data transmission, which generally ...

AI Technical Summary

Problems solved by technology

However, in the existing LTE-based Internet of Vehicles technical solutions, the communication delay is generally more than 50ms

This poses a huge challenge to the safe driving of autonomous vehicles in high-speed moving scenarios

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