User Equipment Inter-UE Coordination Resource Priority
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Solution Overview
Problem
In SL communication, existing technologies face challenges in managing resource conflicts and improving resource utilization efficiency due to the lack of effective methods for inter-UE coordination, particularly in defining and transmitting inter-UE coordination messages.
Innovation Solution
A method where user equipment determines and transmits inter-UE coordination messages with indicated coordination resource priorities, allowing UEs to assess whether to drop resources and improve resource allocation efficiency by comparing priorities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If distributed resource reservation mechanism is used without priority indication, then resource allocation autonomy is improved, but resource conflict increases
Solution Approach 1:
The patent introduces priority values as a new parameter in resource reservation messages. Each UE includes a priority indicator when reserving resources, allowing other UEs to compare and resolve conflicts by dropping lower priority reservations. This parameter addition transforms the autonomous but conflict-prone distributed mechanism into one that maintains autonomy while providing conflict resolution capability through priority-based decisions.
2Productivity
If inter-UE coordination messages are introduced, then resource utilization efficiency is improved, but message definition and transmission complexity increases
Solution Approach 1:
The patent extracts only the essential coordination information needed for conflict resolution - specifically the resource identification and priority value - from complex inter-UE coordination messages. By taking out only these critical elements rather than implementing comprehensive coordination protocols, the solution improves resource utilization through conflict awareness while keeping message structures simple and transmission overhead minimal.
3Reliability
If priority values are indicated in coordination messages, then resource conflict resolution is improved, but information overhead increases
Solution Approach 1:
The patent applies local quality by adding priority information only where needed - specifically in resource reservation messages and coordination messages related to conflicting resources - rather than increasing overhead in all communications. The priority value is included locally at the point of resource allocation and conflict resolution, keeping information overhead minimal while providing sufficient data for reliable conflict management.
Data Source
AI summary
Provided in the present invention are a method performed by user equipment and user equipment. The method performed by user equipment includes: receiving a coordination request in a first resource pool, determining a coordination resource set in a second resource pool, and transmitting, in a third resource pool, a coordination message as a response to the coordination request, wherein the coordination message includes an indication for the coordination resource set, and the first resource pool, the second resource pool, and the third resource pool are the same resource pool.