Autonomous Wireless Link Interference Control via Coalition Feedback
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Solution Overview
Problem
In autonomous wireless communication systems, decentralized resource selection among devices leads to sub-optimal performance and increased interference due to the lack of centralized supervision, resulting in congestion and reduced data transfer reliability.
Innovation Solution
A method for sidelink communication congestion control is introduced, where devices broadcast cooperation messages with interference information and a cooperation mode indicator, allowing devices to form coalitions and adjust transmission parameters to optimize resource usage and reduce interference, thereby achieving reliable congestion control without central supervision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If decentralized resource selection is used among devices, then device autonomy and ease of operation are improved, but transmission resource efficiency and reliability deteriorate due to lack of coordination
Solution Approach 1:
The patent implements feedback mechanisms where devices measure interference levels and transmit this information to neighboring devices. Each device adjusts its transmission parameters based on feedback received from others, creating a closed-loop system that improves reliability while maintaining decentralization. The feedback includes interference measurements and coordination messages that enable adaptive resource selection.
Solution Approach 2:
The patent introduces coordination messages as an intermediary mechanism between devices. These messages facilitate indirect communication and negotiation about resource usage without requiring direct device-to-device agreements. The coordination messages serve as a mediator that enables decentralized devices to achieve coordinated resource selection, improving reliability while preserving autonomy.
2Productivity
If more devices use transmission resources concurrently, then system capacity and productivity are improved, but interference and congestion increase
Solution Approach 1:
The patent employs parameter changes by dynamically adjusting transmission parameters such as power levels, resource block selections, and modulation schemes based on measured interference conditions. Devices modify these parameters adaptively to maintain high system capacity while keeping interference within acceptable limits. The parameter adjustments are based on real-time interference measurements and coordination with neighboring devices.
3Device complexity
If transmission resources are selected without centralized supervision, then system complexity is reduced and ease of operation is improved, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent implements self-service mechanisms where each device independently selects and adjusts its own transmission resources based on local interference measurements and received coordination messages. Devices autonomously negotiate resource usage with neighbors through standardized coordination protocols, eliminating the need for centralized resource allocation while maintaining efficient resource utilization. This self-organizing approach reduces system complexity while preserving allocation efficiency.
Data Source
AI summary
Methods and related devices for performing congestion control in a decentralized way are provided, particularly for controlling interference among autonomous wireless communication links, such as sidelink communication. According to embodiments of the present disclosure, methods for performing congestion control comprise sending a cooperation message that includes a measured total interference and a cooperation mode indicator. Based on this cooperation message, other devices may voluntarily decide to join a coalition for perform congestion control.