V2X Transmission Gap Configuration for Priority-Based Interference Protection
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Solution Overview
Problem
In wireless communication systems, high-priority messages, such as event-triggered messages, require protection from interference by other user equipment (UE) during aperiodic transmission, which existing systems fail to effectively manage, leading to potential resource conflicts and interference.
Innovation Solution
A method where a user equipment (UE) transmits control information in a control information resource pool and data in a data resource pool, with a configurable transmission gap between the two pools based on priority, allowing higher-priority messages to have a larger gap and enabling resource reallocation if overlaps occur, thereby protecting higher-priority messages without additional resource reservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a transmission gap is configured according to priority, then higher-priority messages are protected from interference, but resource utilization efficiency decreases due to larger gaps occupying more time resources
Solution Approach 1:
The patent changes the parameter of transmission gap size dynamically based on message priority. High-priority messages (e.g., DENM) are allocated larger transmission gaps to ensure protection from interference, while low-priority messages use smaller gaps. This parameter adaptation resolves the contradiction by optimizing reliability for critical messages while maintaining reasonable resource efficiency for non-critical traffic.
2Reliability
If resource reallocation is performed when overlaps occur, then resource conflicts are resolved, but system complexity increases due to additional conflict detection and reallocation procedures
Solution Approach 1:
The patent performs preliminary resource overlap detection before transmission occurs. By checking for potential conflicts in advance and proactively reallocating resources, the system prevents interference rather than reacting to it. This preliminary action reduces the need for complex real-time conflict resolution mechanisms, thereby managing system complexity more effectively.
3Reliability
If a larger transmission gap is allocated to high-priority messages, then interference protection is improved, but transmission delay increases for data following the control information
Solution Approach 1:
The patent applies local quality by providing enhanced protection (larger transmission gaps) only to specific high-priority messages that require it, such as DENM messages, while using smaller gaps for low-priority traffic. This localized approach ensures that interference protection is concentrated where most needed, minimizing the overall time loss in the system while maintaining reliability for critical communications.
Data Source
AI summary
One embodiment of the present invention relates to a method for a terminal transmitting control information and data in a wireless communication system, the method for transmitting the control information and the data comprising the steps of: transmitting a first piece of control information from a control information resource pool; and transmitting data through a resource indicated by the first piece of control information from a data resource pool, wherein the size of a transmission gap between the control information resource pool and the data resource pool is configured according to priority.