Location Triggering for V2X Resource Allocation
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Solution Overview
Problem
In wireless communication networks, especially for V2X transmissions, frequent transmission of geographical information to manage resource allocation can consume significant radio resources, and existing methods either risk resource collisions or incur high signaling overhead.
Innovation Solution
An apparatus and method that determine reference and current location information to trigger transmissions only when specific conditions are met, such as distance thresholds or region changes, allowing for efficient resource pool selection and DMRS density adjustment to optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If frequent transmission of location information is performed to manage resource allocation, then resource allocation efficiency is improved, but radio resource consumption increases
Solution Approach 1:
The patent implements periodic transmission of location information at predetermined intervals rather than continuous transmission. The UE transmits its second location information to the gNB only at scheduled periodic moments, reducing radio resource consumption while maintaining adequate resource allocation management capability.
Solution Approach 2:
The UE autonomously determines its own location information and self-manages the transmission timing based on pre-configured parameters from the gNB. The UE calculates whether to transmit based on movement thresholds and periodic timing without requiring continuous gNB intervention, reducing signaling overhead and radio resource usage.
2Device complexity
If UE autonomous resource selection is used to save signaling overhead, then signaling overhead is reduced, but resource collision risk increases
Solution Approach 1:
The UE provides periodic feedback to the gNB about its location information and resource usage status. The gNB receives this feedback and can adjust resource allocations accordingly, enabling collision avoidance through information exchange without requiring continuous high-overhead signaling for every resource selection decision.
Solution Approach 2:
The gNB pre-configures the UE with resource pool parameters, transmission periodicity, and movement thresholds before the UE begins autonomous resource selection. This preliminary configuration enables the UE to make informed autonomous decisions that reduce collisions while minimizing ongoing signaling overhead.
3Reliability
If eNB scheduling is used to avoid resource collision, then resource collision is avoided, but signaling overhead increases
Solution Approach 1:
Instead of continuous eNB scheduling decisions, the system uses periodic location information transmission combined with pre-configured resource allocation rules. The gNB schedules resources based on periodic updates rather than continuous interaction, reducing signaling overhead while maintaining collision avoidance capability.
Solution Approach 2:
The patent introduces movement thresholds and periodic transmission timing as intermediary mechanisms between full eNB scheduling and completely autonomous UE selection. These intermediaries enable semi-autonomous operation where the UE makes local decisions within gNB-defined parameters, reducing signaling overhead while preventing collisions.
Data Source
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AI summary
Apparatuses, methods, and systems are disclosed for triggering transmissions using a location. One apparatus includes a processor that determines reference location information. The processor also determines current location information. The processor determines whether a trigger is satisfied using the reference location information and the current location information. The apparatus also includes a transmitter that transmits the current location information in response to the trigger being satisfied.