V2X Platooning Beam Management via Leader Sweeping
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Solution Overview
Problem
Current beam management techniques for vehicle-to-everything (V2X) communications in platooning scenarios face challenges in efficiently managing beams between vehicles and base stations, particularly in optimizing beam configuration and reducing overhead, especially when vehicles have different antenna configurations or travel on curved roads.
Innovation Solution
An operation method for a first platoon member in a communication system that involves receiving beam configuration information from a platoon leader or base station, allowing vehicles to configure their transmission and reception beams based on geo-location information and quality metrics, with optional schemes for refining beams under specific conditions such as link quality or speed thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam sweeping is performed to manage beams between vehicles and base station, then beam configuration is established, but overhead increases
Solution Approach 1:
The platoon leader performs beam sweeping and determines optimal beams in advance, then shares this pre-determined beam configuration information with platoon members. This preliminary action eliminates the need for each member to perform separate beam sweeping, significantly reducing overhead while ensuring reliable beam configuration.
Solution Approach 2:
Instead of each platoon member independently performing beam management, the platoon leader's beam configuration results are copied and shared with all members. This copying approach reduces the overall system overhead while maintaining the reliability of beam configuration across the platoon.
2Reliability
If individual beam management is performed by each platoon member, then beam configuration is optimized for each vehicle, but device complexity increases
Solution Approach 1:
The patent merges the beam management functions of multiple platoon members into a single centralized operation performed by the platoon leader. The leader conducts beam sweeping and determines optimal beams for the entire platoon, then shares results with members. This combining approach reduces individual device complexity while maintaining overall communication quality.
Solution Approach 2:
The platoon leader performs a universal beam management function that serves all platoon members simultaneously. By conducting single beam sweeping and sharing results universally, the system achieves efficient beam configuration for all vehicles without each device needing complex independent management capabilities.
3Loss of time
If beam configuration is shared among platoon members, then overhead is reduced, but adaptability to different antenna configurations decreases
Solution Approach 1:
The patent applies local quality by allowing platoon members with different antenna configurations to receive and apply beam configuration information appropriately to their specific hardware. Each member adapts the shared beam configuration to its local antenna characteristics, maintaining adaptability while benefiting from reduced overhead through information sharing.
Data Source
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AI summary
An operation method of a PM participating in platooning in a communication system is provided. The method includes receiving, from a PL participating in the platooning, information regarding beam configuration between the PL and a base station and determining a beam reception range based on a first receiving direction of the PL. The first receiving direction is indicated by the information regarding beam configuration. The method further includes measuring a signal quality of a first transmission beam of the base station by changing a receiving direction of the PM within the beam reception range and determining a receiving direction in which the first transmission beam has a best signal quality as a final receiving direction.