AMF-LMF Location Replacement for Moving Cell Positioning

The patent applies the copying principle by creating a virtual stationary representation of the moving cell through the concept of a representative fixed cell. The fixed cell ID and location information serve as a copy or proxy for the actual moving cell, allowing positioning systems to treat dynamic cells as if they were stationary. This enables conventional positioning methods to achieve accurate results by operating on the copied fixed cell data rather than the problematic moving cell data directly.

The patent introduces an intermediary mechanism by inserting the network entity (AMF/LMF) as a mediator between the UE and the positioning system. The network entity receives location requests, determines whether the serving cell is moving, and if so, replaces the UE location with the representative fixed cell location before providing the positioning information. This intermediary processing layer simplifies the overall system by centralizing the complexity of handling moving cells within the network infrastructure rather than requiring complex UE-side or external system handling.

The patent applies self-service by enabling the network entity to automatically detect and handle moving cell scenarios without requiring external intervention or complex procedural changes. The AMF/LMF autonomously determines whether the serving cell is moving by checking cell mobility indicators, and automatically performs the location replacement operation when needed. This self-service capability maintains procedural simplicity while improving accuracy, as the system handles the complexity internally without requiring changes to the external positioning workflow.