V2X Sidelink Resource Control Assisted Transfer
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Solution Overview
Problem
Current LTE-V2X systems face significant degradation and interruption in V2X services due to abrupt switching between operation modes during unicast and groupcast communications in 5G-NR V2X, leading to unreliable sidelink resource management and potential collisions, especially in challenging radio environments.
Innovation Solution
Implementing an assisted transfer of sidelink resource control and management from a centralized base station to a localized header, allowing for unified management and ensuring continuous V2X service even when the radio connection with the serving base station deteriorates, thereby maintaining quality of service and preventing resource collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If abrupt switching between operation modes is implemented in LTE-V2X systems, then operational flexibility is improved, but service reliability deteriorates due to significant degradation and interruption in V2X services
Solution Approach 1:
The patent implements preliminary actions by establishing assistance information transfer mechanisms and localized header configurations before mode switching occurs. The base station pre-configures multiple localized headers and prepares assistance information that enables seamless transition, preventing service interruption before it can occur.
Solution Approach 2:
The patent introduces an intermediary mechanism through the base station's assistance information and localized header structure. This intermediary enables coordinated resource management during mode transitions, allowing UEs to switch operations while maintaining service continuity through the base station's mediating control.
2Productivity
If unicast and groupcast communications are implemented in 5G-NR V2X, then spectral efficiency is improved, but resource management complexity increases leading to potential collisions
Solution Approach 1:
The patent segments resource management by introducing localized headers that divide the network into manageable sections. Each localized header manages resources for specific UE groups, breaking down the complex overall resource management into smaller, coordinated segments that reduce collision potential while maintaining high spectral efficiency.
Solution Approach 2:
The patent implements feedback mechanisms where UEs report channel conditions and resource usage to the base station, which then adjusts assistance information and localized header configurations accordingly. This continuous feedback loop enables dynamic resource allocation that maintains spectral efficiency while preventing collisions through real-time coordination.
Data Source
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AI summary
A user equipment (UE), a base station (BS), and a method of vehicle-to-everything (V2X) communication of same are provided. The method of V2X communication of the UE includes participating with at least another UE in a group of UEs in a unicast session or a groupcast session, receiving at least one cellular downlink (DL) signal and channel from the BS, monitoring at least one DL radio condition by measuring at least one first received signal strength and/or power, reporting, to the BS, at least one measurement result of the at least one DL radio condition, and receiving assisted transfer configuration details from the BS. The assisted transfer configuration details include the BS assigning a local header for an on-going unicast session or an on-going groupcast session based on the at least one measurement result of the at least one DL radio condition.