Sidelink Resource Selection Window Timeline Coordination
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Solution Overview
Problem
Current wireless communication technologies face challenges in efficient sidelink resource utilization due to ambiguities in resource selection windows between user equipment (UEs), leading to improper selection and inefficient use of resources.
Innovation Solution
The introduction of timelines for selection windows and inter-UE coordination messages allows for independent selection window lengths, eliminating ambiguity and ensuring proper resource mapping, thereby improving sidelink resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a common resource selection window length is used for all UEs, then resource selection simplicity is maintained, but resource utilization efficiency deteriorates due to ambiguities in resource mapping between UEs
Solution Approach 1:
The patent applies local quality by allowing different UEs to have different resource selection window lengths tailored to their specific communication requirements. Each UE can configure its selection window length based on factors such as traffic type, QoS requirements, and channel conditions, thereby optimizing resource utilization for each UE's specific needs while maintaining a standardized coordination mechanism through inter-UE coordination messages.
2Productivity
If independent selection window lengths are used for different UEs, then resource utilization efficiency is improved, but system complexity increases due to coordination requirements
Solution Approach 1:
The patent introduces inter-UE coordination messages as an intermediary mechanism that enables UEs with independent selection window lengths to coordinate their resource selections. These messages allow UEs to share information about their selected resources and window configurations, resolving potential conflicts and ambiguities without requiring complex centralized control, thus managing system complexity through decentralized peer-to-peer coordination.
Solution Approach 2:
The patent applies preliminary action by having UEs perform resource selection and exchange coordination messages before actual sidelink communication occurs. This advance coordination allows UEs to resolve potential resource conflicts and align their independent selection window lengths beforehand, ensuring efficient resource utilization without real-time complexity during actual data transmission.
3Loss of energy
If resource selection is performed without inter-UE coordination messages, then signaling overhead is reduced, but resource selection accuracy deteriorates due to ambiguities in selection window interpretation
Solution Approach 1:
The patent applies partial action by implementing selective inter-UE coordination messaging that is triggered only when specific conditions are met, such as when UEs have significantly different selection window lengths or when resource conflicts are detected. This approach avoids unnecessary signaling overhead for cases where coordination is not needed, while still ensuring accurate resource selection when ambiguities exist, thus balancing signaling overhead and selection accuracy.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may select a set of available sidelink resources in a selection window for communication by a second UE. The first UE may transmit, to the second UE, an inter-UE coordination message that indicates inter-UE coordination information identifying the set of available sidelink resources, wherein the selection window is of a length different than a length of a resource selection window of the first UE. Numerous other aspects are provided.