V2X Link Switching Using Directional Sidelink and Network Paths
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Solution Overview
Problem
Existing wireless communication systems, particularly in vehicle-to-everything (V2X) systems, face challenges in ensuring reliable communication through sidelink and network link interfaces, as omnidirectional transmissions can waste resources and fail to meet quality of service requirements for specific UEs.
Innovation Solution
Implementing a method that switches between sidelink (PC5) and network link (Uu) connections based on directional parameters and geographic information to enhance communication reliability, using a V2X application server to identify optimal transmission paths and ensure data delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If omnidirectional transmissions are used in V2X systems, then coverage area is improved, but resource utilization deteriorates and reliability worsens
Solution Approach 1:
The patent applies local quality by transitioning from omnidirectional transmissions to directional transmissions. The system determines geographic information and directional parameters to transmit data in specific directions toward target UEs rather than in all directions. This concentrates transmission resources where needed, improving resource utilization while maintaining coverage through targeted directional beams.
Solution Approach 2:
The patent implements dynamics by dynamically switching between sidelink and network link interfaces based on real-time conditions. The system evaluates geographic information, directional parameters, and link quality to adaptively select the optimal transmission interface, enabling flexible resource allocation that responds to changing environmental conditions and UE positions.
2Area of stationary object
If omnidirectional transmissions are used in V2X systems, then coverage area is improved, but communication reliability deteriorates
Solution Approach 1:
The patent applies local quality by using directional transmissions focused on specific target UEs rather than omnidirectional coverage. By determining geographic information and calculating directional parameters, the system concentrates transmission energy toward intended recipients, improving signal quality and reliability for specific UEs while reducing interference to others.
Solution Approach 2:
The patent implements feedback mechanisms by monitoring link quality, geographic information, and transmission success. The system uses this feedback to dynamically adjust transmission parameters, switch between sidelink and network link interfaces, and optimize directional beams, thereby maintaining high communication reliability adaptively.
3Speed
If sidelink interface is used for V2X communication, then communication directness is improved, but communication reliability deteriorates under certain conditions
Solution Approach 1:
The patent implements dynamics by dynamically selecting between sidelink and network link interfaces based on real-time condition evaluation. The system monitors link quality, geographic information, and transmission success, then adaptively switches interfaces to maintain optimal reliability while preserving the directness benefits of sidelink when conditions are favorable.
Solution Approach 2:
The patent uses the network link as an intermediary when sidelink conditions are poor. Rather than relying solely on direct sidelink communication, the system can route transmissions through the network infrastructure when needed, providing a fallback mechanism that maintains reliability while preserving sidelink directness when conditions permit.
4Loss of energy
If directional transmissions are implemented in V2X systems, then resource utilization is improved, but system complexity increases
Solution Approach 1:
The patent applies local quality by implementing directional transmissions that focus energy toward specific target UEs. The system determines geographic information and calculates directional parameters to create focused transmission beams, improving resource utilization by reducing wasted omnidirectional coverage while managing complexity through targeted rather than universal processing.
Solution Approach 2:
The patent implements self-service by enabling UEs to autonomously determine their own geographic information and calculate directional parameters for transmission. Each UE independently performs location determination and beamforming calculations, reducing the need for centralized control and minimizing system-level complexity while achieving efficient directional resource allocation.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for wireless communications in a vehicle-to-everything (V2X) system. An example method generally includes receiving, from a user equipment (UE) through a serving network entity, a request for information from the V2X application server, wherein the request includes an indication of a type of the requested information and a location of the UE; identifying one or more parameters for transmission of the requested information to the UE via a transmitter UE; and transmitting, to the serving network entity, the requested information for transmission to the UE through the transmitter UE based on the identified parameters.