UE Transmission Priority for Uplink-Sidelink Resource Conflicts
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Solution Overview
Problem
User equipment (UE) faces challenges in prioritizing uplink and sidelink transmissions when they share the same resources, leading to potential latency issues in latency-sensitive applications.
Innovation Solution
A mechanism for UE to determine and prioritize uplink or sidelink transmissions based on assigned priority values, considering factors like beam failure recovery and application type, ensuring that latency-sensitive sidelink transmissions are prioritized over uplink transmissions when resource conflicts occur.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE transmits both uplink and sidelink data using the same resource at the same time, then resource utilization is maximized, but transmission reliability deteriorates due to conflicts between the two transmissions
Solution Approach 1:
The UE performs preliminary determination of priority values for both uplink and sidelink data before the actual transmission occurs. This advance prioritization allows the UE to pre-establish which transmission should take precedence, preventing conflicts during actual transmission and ensuring reliable delivery of high-priority data while maintaining efficient resource utilization
Solution Approach 2:
The invention introduces priority values as a new parameter to resolve the contradiction. By assigning and comparing priority values between uplink and sidelink data, the UE can dynamically adjust transmission behavior based on data importance, thereby maintaining both high resource utilization and transmission reliability through intelligent parameter-based decision making
2Reliability
If the UE prioritizes uplink transmissions over sidelink transmissions, then network communication reliability is improved, but latency in sidelink communications increases
Solution Approach 1:
The invention changes the priority parameter dynamically based on data type and service requirements. Sidelink data with low latency requirements can be assigned higher priority values than uplink data, allowing the UE to prioritize time-sensitive sidelink transmissions over network communications, thereby reducing sidelink latency while maintaining overall system reliability
Solution Approach 2:
The priority assignment mechanism is dynamic rather than static. The UE can adjust priority values based on current transmission conditions, data characteristics, and service requirements. This dynamic approach allows the system to adaptively balance between uplink reliability and sidelink latency, ensuring optimal performance for different scenarios
3Device complexity
If the UE assigns equal priority to both uplink and sidelink data, then simplicity of prioritization logic is maintained, but transmission efficiency deteriorates due to unresolved conflicts
Solution Approach 1:
The invention introduces a simple yet effective priority value parameter that can be assigned based on predefined rules or data characteristics. This single parameter approach maintains relatively simple prioritization logic while significantly improving transmission efficiency by enabling clear conflict resolution between uplink and sidelink transmissions
Solution Approach 2:
The invention segments data into different priority categories, allowing the UE to handle different types of data with appropriate priority levels. This segmentation approach simplifies the prioritization process by providing clear categorization rules while improving transmission efficiency through differentiated handling of high-priority versus low-priority data
Data Source
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AI summary
A method performed by a user equipment (UE) configured with an uplink and a sidelink. The method includes determining that a first set of data is to be transmitted in the uplink, assigning a priority value to the first set of data, determining that a second set of data is to be transmitted in the sidelink, assigning a priority value to the second set of data, determining that the first and second set of data are to be transmitted using a same resource at a same time, selecting one of the first set of data or the second set of data to be transmitted first based on at least the first priority value and the second priority value and when the first set of data that is to be transmitted in the uplink is selected, transmitting the first set of data prior to transmitting the second set of data.