UE Conflict Resolution for Overlapping Semi-Persistent Scheduling
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Solution Overview
Problem
Wireless communication systems face inefficiencies in managing multiple active semi-persistent scheduling configurations with overlapping occasions, leading to conflicts that can impact communication efficiency and priority handling.
Innovation Solution
A conflict resolution rule is applied by user equipment (UE) to identify overlaps between scheduled occasions, allowing communication on higher priority occasions and refraining from lower priority ones, based on priority levels and periodicities, to optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple semi-persistent scheduling configurations are applied simultaneously, then communication coverage and service diversity are improved, but resource conflicts and communication efficiency deteriorate due to overlapping occasions
Solution Approach 1:
The patent changes the parameter of occasion selection by introducing a priority level parameter. When occasions overlap, the UE compares priority levels and selects the occasion with the higher priority, thereby resolving the resource conflict while maintaining multiple scheduling configurations for service diversity
Solution Approach 2:
The patent segments the overlapping occasions into distinct priority levels. By dividing the resource allocation into priority-based segments, the system can handle multiple configurations simultaneously while ensuring that higher priority traffic receives the necessary resources without conflict
2Adaptability or versatility
If multiple semi-persistent scheduling configurations with different periodicities are applied, then resource utilization flexibility is improved, but overlap conflicts and scheduling complexity increase
Solution Approach 1:
The patent introduces a priority level parameter associated with each scheduling configuration. This additional parameter enables the UE to resolve overlaps systematically by comparing priority levels, thereby managing the complexity of multiple configurations with different periodicities without increasing scheduling complexity
3Productivity
If conflict resolution rules are applied to overlapping occasions, then resource allocation efficiency is improved, but processing overhead increases due to overlap detection and priority comparison
Solution Approach 1:
The patent applies conflict resolution rules proactively when overlaps are detected. By performing priority comparison and occasion selection at the time of overlap detection rather than waiting for resource allocation, the system minimizes processing overhead and maximizes resource allocation efficiency
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify an overlap in time between at least a first occasion and a second occasion in a slot. In some cases, the first occasion may be semi-persistently scheduled for the UE according to a first configuration associated with a first priority level, and the second occasion may be semi-persistently scheduled for the UE according to a second configuration associated with a second priority level. The UE may apply, based on the identified overlap, a conflict resolution rule to the first occasion and the second occasion based on the first priority level for the first occasion and the second priority level for the second occasion, communicate in the slot using the first occasion, and refrain from communicating in the slot using the second occasion based on applying the conflict resolution rule.