UE Ranging Service Exposure via LCS Mediation
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Solution Overview
Problem
The control over UE ranging capabilities in 3GPP systems is limited to the core network, restricting its applicability and use cases.
Innovation Solution
A ranging service exposure framework is introduced to increase the exposure of UE ranging capabilities to entities outside the core network, enabling enhanced use cases by allowing entities such as application servers to initiate and control ranging services through the core network entities like GMLC and LMF.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If control over UE ranging capabilities is limited to the core network, then network security and management are maintained, but the applicability and use cases are restricted
Solution Approach 1:
The patent introduces an LCS server as an intermediary entity between external entities and the core network's LMF. This mediator enables external entities to access and control UE ranging capabilities without direct core network involvement, thereby expanding applicability while maintaining network security. The LCS server handles service requests from external entities and translates them into appropriate core network commands.
Solution Approach 2:
The patent segments the ranging control functionality by introducing a new LCS server layer that handles external entity interactions separately from the core network's LMF. This segmentation allows independent management of external service access while preserving core network security and control mechanisms, effectively resolving the contradiction between expanded versatility and maintained security.
2Adaptability or versatility
If ranging service is exposed to external entities, then more use cases become available, but control and management complexity increases
Solution Approach 1:
The LCS server acts as a mediator that simplifies service control for external entities by providing a standardized interface. External entities interact with the LCS server rather than directly with complex core network functions, making service initiation and management easier while maintaining comprehensive control capabilities.
Solution Approach 2:
The system enables external entities to autonomously initiate and manage ranging services through the exposed LCS server interface. This self-service capability allows external entities to independently configure and control ranging operations without requiring direct core network intervention, thereby improving ease of operation while expanding use cases.
Data Source
AI summary
A method of a reference user equipment (UE) for performing ranging with a target UE in a wireless communications system. The method comprises receiving from a requesting entity, a request for a ranging service with the target UE; performing ranging with the target UE; and transmitting to the requesting entity, a report of a result of the ranging, wherein the request is received from the requesting entity via one or more of a Gateway Mobile Location Centre (GMLC) and a Location Management Function (LMF) of the wireless communications system and the report is transmitted to the requesting entity via one or more of the GMLM and LMF.