Sidelink Control Information Positioning for V2X Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing techniques fail to determine a specific time domain transmission position for sidelink control information on time-frequency resources in V2X communication, leading to increased complexity and power consumption for receiving terminals due to blind detection requirements.
Innovation Solution
A sidelink transmission method that prescribes a preset position on the time-frequency resource as the time domain transmission position for sidelink control information, allowing terminals to determine a specific position based on the time of successful resource acquisition, thereby reducing blind detection complexity and improving reception efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blind detection is used to determine transmission position of sidelink control information, then receiving terminals can receive control information, but detection complexity and power consumption increase
Solution Approach 1:
The patent applies preliminary action by pre-defining preset positions for sidelink control information transmission on time-frequency resources. The transmitting terminal transmits control information at these predetermined positions without requiring the receiving terminal to perform blind detection across multiple possible positions. This resolves the contradiction by eliminating the need for complex blind detection while ensuring reliable control information reception.
2Reliability
If blind detection is used to determine transmission position of sidelink control information, then receiving terminals can receive control information, but power consumption increases
Solution Approach 1:
The patent applies preliminary action by pre-defining preset positions for sidelink control information transmission on time-frequency resources. The transmitting terminal transmits control information at these predetermined positions without requiring the receiving terminal to perform blind detection across multiple possible positions. This resolves the contradiction by eliminating the need for complex blind detection while ensuring reliable control information reception.
3Ease of operation
If preset position is selected based on resource acquisition time, then transmission position is determined, but time domain positioning flexibility is reduced
Solution Approach 1:
The patent applies dynamics by establishing a dynamic selection mechanism for preset positions based on the time when time-frequency resources are successfully acquired. The system can switch between different preset positions (first preset position or second preset position) depending on the acquisition time relative to predefined thresholds. This resolves the contradiction by providing adaptive positioning that responds to timing conditions while maintaining operational simplicity.
Data Source
Figure 1~2
Figure 3~6
Figure 7~9
AI summary
Disclosed are a sidelink transmission method, and a terminal and a computer-readable storage medium. The method comprises: acquiring a time domain resource, on a sidelink, for transmission; and taking a preset position on the time domain resource as a time domain sending position of sidelink control information, and sending the sidelink control information on the sidelink. The application of the above-mentioned solution enables a receiving terminal to determine the specific sending position, on the time domain resource, of the sidelink control information, and can reduce the complexity of a blind test of the receiving terminal, improve receiving efficiency and reduce the power consumption of the receiving terminal.