Resource Occupancy Detection for Variable Traffic Periodicity
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Solution Overview
Problem
In a Long Term Evolution (LTE) system with varying traffic transmission periodicity, determining resource occupancy state becomes complex, making it difficult to maintain and select resources effectively for internet-of-vehicles communication.
Innovation Solution
A method and apparatus that receive SA information from second nodes to determine resource occupancy state in a state maintenance periodicity, using traffic transmission periodicity and SA information to calculate time and frequency domain positions, and perform modulus operations to determine equivalent positions, allowing for effective detection of resource occupancy state across multiple periodicities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the occupancy situation of resources is determined using the least common multiple of respective integral periodicities to accommodate varying traffic transmission periodicities, then the system can support flexible periodicity changes, but the complexity of maintaining the resource occupancy state increases significantly
Solution Approach 1:
The patent segments the resource occupancy detection into multiple state maintenance instances, each corresponding to a specific traffic transmission periodicity. Instead of maintaining one large LCM-based state, the system divides it into smaller periodicity-specific states (e.g., 100ms, 200ms, 500ms instances), reducing the complexity of tracking resource occupancy while supporting flexible periodicity changes.
Solution Approach 2:
The patent implements dynamic state maintenance where the system can flexibly adjust which state maintenance instances are active based on the current traffic transmission periodicity. When periodicity changes, the system dynamically selects or switches between different state maintenance instances rather than maintaining all possible LCM-based states, adapting to varying conditions without excessive complexity.
2Productivity
If the traffic transmission periodicity is configured to be variable to alleviate congestion, then the system can flexibly respond to changing network conditions, but the complexity of determining resource occupancy state increases
Solution Approach 1:
The patent performs preliminary action by pre-establishing multiple state maintenance instances corresponding to different traffic transmission periodicities before actual transmission occurs. When congestion conditions change and periodicity needs adjustment, the system can immediately switch to the appropriate pre-configured state maintenance instance, avoiding complex real-time calculations while maintaining flexible congestion management.
Solution Approach 2:
The patent changes the parameter of state maintenance periodicity to match the traffic transmission periodicity. By adjusting the state maintenance periodicity parameter dynamically (e.g., switching between 100ms, 200ms, 500ms instances), the system responds to congestion conditions and periodicity changes without requiring complex LCM-based calculations, simplifying resource occupancy determination.
Data Source
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AI summary
Disclosed in the present invention are a method and an apparatus for determining resource occupation state, for solving the problem that, in the cases where the service transmission cycle is variable, the complexity of maintenance is high and the complexity of resource selection is high if the current resource occupation sensing method is still being used. The method comprises: a first node receiving SA information sent by at least one second node, the SA information being used for indicating resource occupation state of the second node; at each state maintenance moment, the first node determining, according to the service transmission cycle of the first node itself and the SA i nformation, the resource occupation state within the state maintenance cycle which has a length of the service transmission cycle of the first node The solutions provided in the embodiments of the present invention can effectively support the sensing of the resource occupation state in various service transmission cycles, and reduce the complexity of resource occupation state maintenance and resource selection.