V2X Side-Link Resource Management via Network Coordination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing side-link resources, particularly in V2X networks, where existing listen before talk mechanisms cannot guarantee collision-free transmissions and are inefficient in multi-cast scenarios, leading to resource conflicts and reduced spectral efficiency.
Innovation Solution
The implementation of autonomous and network-assisted side-link resource management methods, where wireless devices determine available resources by listening to occupancy messages and broadcast their own schedules, and network nodes coordinate resource assignments based on UE location and mobility, enabling improved spectral efficiency and reduced resource conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If listen before talk mechanisms are used for side-link resource management, then device autonomy is improved, but transmission reliability deteriorates due to inability to guarantee collision-free transmissions
Solution Approach 1:
The patent introduces a network node as an intermediary that coordinates resource allocation between devices. The network node receives resource requests from devices, determines available resources based on location and mobility information, and assigns resources to devices. This mediator approach maintains device autonomy in making requests while ensuring reliable collision-free allocations through centralized coordination.
2Device complexity
If existing resource management mechanisms are used in multi-cast scenarios, then simplicity is maintained, but spectral efficiency deteriorates due to resource conflicts
Solution Approach 1:
The patent applies local quality by making resource allocation decisions based on local device characteristics such as location information and mobility status. The network node considers specific device properties (stationary vs. mobile, location coordinates) to assign appropriate resources, optimizing spectral efficiency for each device's local context rather than applying uniform resource allocation to all devices.
3Adaptability or versatility
If autonomous resource management is implemented, then device independence is improved, but resource allocation efficiency deteriorates due to lack of coordination
Solution Approach 1:
The patent implements dynamics by enabling devices to dynamically request resources based on their current needs and by allowing the network node to dynamically assign resources based on real-time location and mobility information. This dynamic approach maintains device independence in initiating requests while achieving efficient resource allocation through real-time coordinated decision-making.
Data Source
AI summary
Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for performing autonomous and non-autonomous side-link resource management as well as groupcast side-link resource management. A wireless device may perform a method for autonomous (e.g., non-network assisted) side-link resource management, e.g., the wireless device may perform a method to originate a semi-persistent side-link schedule for a side-link resource (e.g., a time domain and/or a frequency domain resource for side-link communications). Additionally, a wireless device may perform a method for groupcast side-link resource management. A network node may perform a method for non-autonomous (e.g., network assisted) side-link resource management, e.g., the network node may perform a method to assist wireless devices to schedule side-link resources.