Sidelink Bearer Mode Selection via Dynamic QoS and RSSI Thresholds
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing sidelink communications between wireless devices, particularly in determining the optimal mode for sidelink communications to minimize interference and latency while maximizing efficiency.
Innovation Solution
Wireless devices are configured to dynamically select a sidelink communication mode based on parameters such as quality of service (QoS), channel occupancy ratio (CR), and received signal strength indication (RSSI), with a base station indicating conditions and thresholds to facilitate this selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed sidelink communication mode is used, then device complexity is reduced, but efficiency and interference management deteriorate
Solution Approach 1:
The patent implements dynamic mode selection where wireless devices can switch between sidelink communication modes (mode 1 and mode 2) based on real-time channel conditions, QoS requirements, and base station configurations. This dynamic adaptation resolves the contradiction by allowing the system to optimize efficiency through mode changes while the base station manages the complexity of selection criteria.
Solution Approach 2:
The base station acts as an intermediary that provides configuration parameters, thresholds, and selection criteria to wireless devices. This intermediary approach transfers the complexity of mode selection logic from individual devices to the network controller, enabling efficient device operation while centralizing the complex decision-making process.
2Loss of time
If dynamic mode selection is implemented, then interference and latency are reduced, but device complexity increases
Solution Approach 1:
The base station pre-configures threshold values, QoS parameters, and mode selection criteria before sidelink communication begins. This preliminary configuration allows devices to make rapid mode decisions based on pre-established rules, reducing latency while managing complexity through advance preparation of decision parameters.
3Adaptability or versatility
If multiple communication modes are supported, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent utilizes parameter changes (QoS thresholds, channel occupancy ratios, RSSI levels) to enable mode adaptation. By monitoring and comparing these parameters against base station-configured thresholds, devices can adapt to different communication conditions without requiring complex configuration management, as the base station handles parameter optimization.
Data Source
AI summary
Wireless devices may communicate with each other via a sidelink. At least two wireless devices may communicate via a sidelink using a resource allocation mode that may be determined with or without assistance from a base station. A wireless device may select, based on one or more conditions, from at least two resource allocation modes of operation for the sidelink.