Sidelink Control Information Mode Indication for Resource Pool Sharing
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently coordinating resource allocation among user equipment (UEs) operating with different sidelink resource allocation modes within shared resource pools, leading to reduced throughput and increased delays due to imperfect coordination and complex reporting requirements.
Innovation Solution
The method involves transmitting sidelink control information (SCI) that includes an indication of the sidelink resource allocation mode, allowing UEs to identify and communicate based on the mode, and enabling base stations to coordinate resource allocation and prioritization, thereby improving scheduling efficiency and reducing reporting overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple UEs operate with different sidelink resource allocation modes in shared resource pools, then resource utilization flexibility is improved, but coordination complexity and reporting overhead increase
Solution Approach 1:
The patent introduces an intermediary indication mechanism in SCI messages that mediates between UEs operating in different resource allocation modes. This indication field acts as a common language that allows Mode 1 UEs and Mode 2 UEs to understand each other's resource allocation intentions without requiring complex inter-UE coordination protocols, thereby resolving the contradiction between versatility and coordination complexity.
Solution Approach 2:
The patent modifies the SCI message structure by adding or modifying parameters related to resource allocation mode indications. By changing the parameter set in SCI messages to include mode-specific information, the system enables UEs to adapt their resource allocation behavior based on the indicated mode, achieving multi-mode compatibility without increasing overall system complexity.
2Measurement precision
If detailed reporting requirements are implemented for resource allocation coordination, then resource allocation precision is improved, but reporting overhead and processing delays increase
Solution Approach 1:
The patent extracts only the essential resource allocation mode indication information from the full set of possible reporting data. By taking out only the critical parameters needed for mode identification and basic coordination, the system achieves sufficient allocation precision while minimizing reporting overhead and processing delays, avoiding the need to report all possible resource allocation details.
Solution Approach 2:
The patent implements partial reporting by including only the necessary portion of resource allocation information in SCI messages. Rather than reporting complete resource allocation details, the system provides partial information sufficient for mode identification and basic coordination, reducing reporting overhead while maintaining adequate precision for effective resource management.
3Productivity
If resource pools are shared among different allocation modes, then resource utilization efficiency is improved, but interference and coordination challenges increase
Solution Approach 1:
The patent applies local quality by enabling UEs to identify and adapt to the specific resource allocation mode indicated in SCI messages from other UEs. This allows each UE to adjust its resource selection and transmission parameters locally based on the detected mode, reducing interference between different modes while maintaining efficient resource pool sharing through mode-aware resource allocation.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter user equipment (UE) may identify a sidelink resource allocation mode that indicates a manner in which one or more sidelink resources are allocated for use by the transmitter UE. The UE may transmit, to a receiver UE, sidelink control information (SCI) that includes an indication that is based at least on part on the sidelink resource allocation mode. Numerous other aspects are described.