D2D Resource Allocation with COT Sharing on Unlicensed Carriers
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently utilizing unlicensed carriers for device-to-device (D2D) communications, particularly in managing channel access and resource allocation.
Innovation Solution
The proposed solution involves a system and method for determining resource allocation for D2D communications, including channel occupancy time (COT) sharing information to optimize channel access on unlicensed carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If device-to-device communications use unlicensed carriers, then data transmission rates increase, but channel access efficiency deteriorates
Solution Approach 1:
The patent applies preliminary action by having the first wireless communication device determine channel occupancy time (COT) sharing information before performing Sidelink communications. This allows the device to pre-negotiate and reserve channel access rights with the second device, ensuring efficient channel utilization before actual data transmission begins, thereby resolving the contradiction between high transmission rates and channel access efficiency
2Productivity
If multiple devices share unlicensed carriers for D2D communications, then resource utilization improves, but interference increases
Solution Approach 1:
The patent uses COT sharing information as an intermediary mechanism to coordinate channel access between multiple devices. The first wireless communication device determines and shares COT information with the second device, acting as a mediator that allows multiple devices to share unlicensed carriers efficiently while maintaining controlled interference levels through coordinated resource allocation
Data Source
AI summary
The present disclosure relates to determining, by a first wireless communication device, at least one first resource for performing Sidelink (SL) communications with a second wireless communication device; and performing, by the first wireless communication device with the second wireless communication device, the SL communications. The present disclosure relates to receiving, by a first wireless communication device from a second wireless communication device, Channel Occupy Time (COT) sharing information indicating sharing a COT of the second wireless communication device and determining, by the first wireless communication device, at least one resource for the COT. The second wireless communication device occupies the COT in response to performing a channel access procedure for a carrier.