Sidelink Resource Selection Using Reference Sets to Avoid Interference
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Solution Overview
Problem
The reliability of sidelink data transmission between terminals in V2X and D2D systems is low due to issues such as resource selection conflicts, energy consumption, and interference, particularly in scenarios where terminals are outside network coverage.
Innovation Solution
A method for resource determination involves a terminal receiving indication information to determine a reference resource set, which is used to select a candidate resource set for sidelink data transmission, thereby improving transmission reliability by avoiding interference and reducing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If terminals autonomously select resources for sidelink data transmission, then resource allocation flexibility is improved, but transmission reliability deteriorates due to resource selection conflicts and interference
Solution Approach 1:
The network device acts as an intermediary by providing reference resource set indication information to terminals. This mediator role helps terminals make more reliable resource selections by referencing the network's perspective on suitable resources, thereby resolving the contradiction between autonomous flexibility and transmission reliability.
Solution Approach 2:
The network device provides feedback to terminals through reference resource set indication information, guiding terminal resource selections. This feedback mechanism enables terminals to adjust their resource selection strategy based on network conditions, improving transmission reliability while maintaining allocation flexibility.
2Reliability
If terminals perform extensive resource selection procedures, then transmission reliability is improved by avoiding interference, but energy consumption increases
Solution Approach 1:
The network device performs preliminary action by pre-evaluating and providing reference resource set indication information to terminals. This preliminary resource assessment by the network reduces the need for terminals to perform extensive energy-consuming resource selection procedures, while still ensuring reliable transmission through informed resource choices.
Data Source
AI summary
A method for resource determination, including: receiving, by a first terminal, indication information indicating a reference resource set; determining a candidate resource set based on the reference resource set; and determining resources used for sending sidelink data based on the candidate resource set.