V2P Paging Indicator Mechanism for Pedestrian UE Power Management
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Solution Overview
Problem
Current vehicle-to-pedestrian (V2P) communication systems face challenges in efficiently paging pedestrian UEs and optimizing power consumption, as pedestrian UEs have limited battery power and require efficient mechanisms to monitor for V2P communications without excessive energy usage.
Innovation Solution
The implementation of paging indicator-based and non-paging indicator-based schemes that time-division multiplex V2P resources with non-V2P resources, allowing pedestrian UEs to monitor for V2P communications only when necessary, using common, pedestrian UE-specific, or vehicle UE-specific paging resources, and enabling efficient power management by refraining from continuous monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pedestrian UEs continuously monitor for V2P communications, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic monitoring where pedestrian UEs wake up at specific intervals to check for paging messages from vehicle UEs, then return to sleep mode. This periodic action maintains communication reliability by ensuring UEs check for messages at regular intervals while dramatically reducing power consumption compared to continuous monitoring.
Solution Approach 2:
The patent uses paging indicator messages sent before actual V2P communication data. These preliminary paging indicators alert pedestrian UEs to wake up and prepare to receive communication, allowing the system to maintain reliability by ensuring UEs are awake when needed while avoiding unnecessary power consumption by keeping UEs asleep when no communication is imminent.
2Difficulty of detecting and measuring
If pedestrian UEs monitor all V2P resources, then detection capability is improved, but device complexity increases
Solution Approach 1:
The patent segments the V2P resource monitoring into distinct phases: a paging indicator monitoring phase where UEs check for alert messages, and a data reception phase where UEs receive actual communication data. This segmentation reduces monitoring complexity by breaking down the continuous monitoring task into discrete, manageable steps with clear transition points.
Solution Approach 2:
The patent introduces paging indicator messages as intermediary signals between the actual V2P communication data and the pedestrian UE. These indicators act as mediators that trigger the UE to wake up and prepare for data reception, simplifying the detection process by providing a clear, two-stage signal structure rather than requiring direct monitoring of all possible communication channels.
Data Source
AI summary
Aspects are provided of dedicated paging schemes for vehicle UEs to communicate with pedestrian UEs in V2P communication and that also allows pedestrian UEs to power-efficiently monitor for such V2P communications. A vehicle UE provides an indication of a V2P communication to a pedestrian UE in a resource from a plurality of resources. The vehicle UE then transmits a message to the pedestrian UE based on the indication. The pedestrian UE monitors the plurality of resources for the indication of the V2P communication from the vehicle UE. The pedestrian UE receives the indication of the V2P communication. The pedestrian UE then receives the message from the vehicle UE based on the indication.