V2X Location Tracking via Paging Control Plane
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Solution Overview
Problem
Current mobile communication systems face challenges in providing efficient location tracking services, especially in scenarios with high traffic load or limited data channel availability, which can lead to reliability and delay issues, making real-time tracking unreliable.
Innovation Solution
A transport layer-based method for vehicle-to-X (V2X) communication that enables location tracking by transmitting control information related to vehicle identification and tracking service requests, using paging messages to locate vehicles even when they are not served by a cellular network, and storing location information for later transmission when power is available.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data channel-based location tracking is used, then location information can be transmitted, but reliability deteriorates under high traffic load and limited data channel availability
Solution Approach 1:
The patent introduces a paging message as an intermediary carrier to transmit location tracking control information. Instead of relying solely on data channels, the location tracking request and response are embedded within paging messages, which are part of the control plane signaling. This intermediary approach allows location tracking to function independently of data channel availability, resolving the contradiction between reliability and productivity.
2Measurement precision
If location tracking is performed in real-time, then tracking accuracy is improved, but delay increases due to network congestion
Solution Approach 1:
The patent implements periodic location tracking by utilizing periodic paging opportunities. The network entity can send paging messages at regular intervals to request location information, and the UE responds during these periodic opportunities. This periodic approach ensures location tracking accuracy is maintained through regular updates while avoiding continuous data channel occupation, thus reducing delays caused by network congestion.
3Adaptability or versatility
If V2X communication is used for location tracking, then service coverage is extended to unserved areas, but device complexity increases
Solution Approach 1:
The patent makes the paging message multi-functional by embedding both traditional paging information and location tracking control information within the same message structure. The UE's response message similarly serves dual purposes: acknowledging the paging and providing location information. This universal approach allows the existing paging mechanism to handle both conventional paging functions and location tracking, extending service coverage to unserved areas without adding significant device complexity.
Data Source
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AI summary
Disclosed herein is a method for tracking a location in vehicle-to-X (V2X) communication in a wireless communication system. The method includes receiving a second message from a second network entity, checking whether the second vehicle UE is served by a cellular network, identifying its own ID included in the received second message, and transmitting a third message including second control information related to the location of the second vehicle UE to the second network entity if the second vehicle UE is served by the cellular network.