Wireless Mode Switching by Packet Priority in V2X Terminals
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Solution Overview
Problem
Existing communication methods for Vehicle to Everything (V2X) terminals face inefficiencies in wireless mode switching, leading to degraded transmission quality due to fixed switching periods and failure to account for dynamic priorities, resulting in additional signaling overhead and inconsistent priority handling.
Innovation Solution
A method for determining dynamic priorities between LTE Sidelink and NR Sidelink modes, configuring the time domain position of the switching period within the transmission period of the target wireless mode based on these priorities, and aligning the switching period with the transmission period to improve reliability and effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed switching period is used for wireless mode switching, then the switching process is simple to implement, but the transmission quality is degraded and signaling overhead increases
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed switching period to a dynamic switching period that adapts based on priority levels. The switching period is no longer static but varies according to the importance of information packets, allowing the system to optimize transmission quality for high-priority data while maintaining operational simplicity through automated priority-based adjustment.
Solution Approach 2:
The patent changes the parameter of switching period from a fixed value to a variable parameter determined by priority levels. By introducing priority-based parameter adjustment, the system can modify the switching period duration according to information packet importance, thereby improving transmission quality without significantly complicating the switching mechanism.
2Device complexity
If a fixed switching period is used, then the system is easy to manage, but signaling overhead increases and transmission quality degrades
Solution Approach 1:
The patent modifies the switching period parameter based on priority levels, transforming it from a fixed system-wide constant to a dynamic parameter that adjusts according to information packet importance. This parameter change reduces signaling overhead by eliminating unnecessary switching for low-priority data while maintaining easy system management through automated priority-based control.
3Ease of operation
If wireless mode switching is performed without priority consideration, then the switching process is straightforward, but important information packets may be delayed or lost
Solution Approach 1:
The patent applies local quality by differentiating the switching behavior based on the priority level of individual information packets. Instead of applying a uniform switching approach to all data, the system tailors the switching period and timing to the specific priority requirements of each packet type, ensuring that high-priority information receives preferential treatment while maintaining overall process simplicity.
Solution Approach 2:
The patent introduces priority-based parameter adjustment where the switching period and timing parameters are dynamically modified according to information packet priority. This ensures that important packets are transmitted with appropriate timing and resources, improving delivery reliability without significantly complicating the switching process through automated priority evaluation.
Data Source
AI summary
A communication method for wireless mode switching, performed by a terminal, includes: determining a first priority associated with an information packet of a first wireless mode and a second priority associated with an information packet of a second wireless mode; determining a target wireless mode based on the first priority and the second priority; and configuring a time domain position of a switching period within a transmission period of the target wireless mode.