Sidelink Resource Selection Using Interference Cancellation Capability
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing interference in sidelink communications, particularly in environments with multiple devices communicating directly, which can lead to reduced performance and resource inefficiencies.
Innovation Solution
Devices transmit and receive indications of interference cancellation (IC) capabilities and resource information to optimize sidelink communications, allowing for better resource selection and interference management based on IC capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices transmit and receive resource information for sidelink communication without considering IC capability, then the communication process is simple, but interference management is poor and resource utilization is inefficient
Solution Approach 1:
The patent applies preliminary action by having devices indicate their IC capability before actual sidelink communication occurs. This allows the receiving device to know in advance whether interference cancellation should be applied, enabling better resource selection and interference management before the harmful interference actually degrades communication quality.
Solution Approach 2:
The patent implements feedback by transmitting IC capability information from the receiving device to the transmitting device. This feedback loop allows the transmitting device to adapt its transmission strategy based on the receiver's IC capability, improving resource utilization and interference management while maintaining a relatively simple communication framework.
2Productivity
If devices use interference cancellation capability, then resource utilization improves, but the device complexity increases due to additional capability indication and processing
Solution Approach 1:
The patent applies self-service by allowing each device to autonomously indicate its own IC capability and make resource selection decisions based on this capability. The receiving device independently determines its IC capability and communicates it to potential transmitting devices, enabling self-organized interference management without requiring complex centralized coordination, thus improving resource utilization while limiting the increase in processing complexity.
3Reliability
If resource selection is made without IC capability consideration, then the communication protocol is simple, but communication quality deteriorates due to interference
Solution Approach 1:
The patent applies local quality by making resource selection decisions specific to each device's IC capability. Instead of a uniform resource selection approach for all devices, the system allows devices with different IC capabilities to select and use resources differently. IC-capable devices can utilize resources that would be avoided by non-IC devices, thereby improving communication quality without requiring complete redesign of the resource selection process for all devices.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first device may transmit an indication of an interference cancellation (IC) capability of the first device. The first device may receive, from a second device, resource information for a sidelink communication. The first device may receive the sidelink communication based at least in part on the resource information. The first device may perform an action based at least in part on the IC capability. Numerous other aspects are described.