Dynamic Location Reporting for NTN Core Network Selection
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Solution Overview
Problem
In Non-Terrestrial Networks (NTN), the inability to determine the country location of a User Equipment (UE) based on Tracking Area Code (TAC) and Global Cell Identity (GCI) reported by the UE leads to inappropriate attach strategies, necessitating additional location information reporting, which increases power consumption and signaling overhead unnecessarily.
Innovation Solution
A method where the UE acquires indication information to determine if it should report location information, and if so, reports it to the network, allowing the network to select an appropriate core network and form a Cell ID using the location information, thereby reducing unnecessary reporting and optimizing resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE reports location information (TAC and GCI) in all NTN attach scenarios, then the network can determine country location for core network selection, but power consumption and signaling overhead increase unnecessarily when location determination is not needed
Solution Approach 1:
The patent makes the location information reporting dynamic by introducing indication information that adapts the reporting behavior to specific scenarios. The UE dynamically adjusts whether to report location information based on the value of the indication information received from the network, allowing the system to optimize between reliability and energy consumption depending on whether NTN-specific core network selection is required.
2Reliability
If the UE reports location information in all NTN attach scenarios, then the network can determine country location for core network selection, but signaling overhead increases unnecessarily when location determination is not needed
Solution Approach 1:
The patent makes the location information reporting dynamic by introducing indication information that adapts the reporting behavior to specific scenarios. The UE dynamically adjusts whether to report location information based on the value of the indication information received from the network, allowing the system to optimize between reliability and signaling overhead depending on whether NTN-specific core network selection is required.
3Measurement precision
If the network configures multiple TAI lists for different scenarios, then location determination accuracy improves, but device complexity and configuration overhead increase
Solution Approach 1:
The patent extracts the location determination function from the TAC/GCI reporting mechanism by introducing a separate indication information element. This allows the network to selectively enable location reporting only when needed for NTN-specific core network selection, rather than requiring complex multi-scenario TAI list configurations. The indication information acts as a simple switch that extracts the essential function without the complexity of multiple configuration sets.
Data Source
AI summary
A location information sending method and apparatus, a device, and a storage medium. The method comprises: acquiring indication information that indicates an operation of a user terminal reporting location information; and reporting the location information of the user terminal in response to the indication information. In the method, after the indication information that indicates the operation of the user terminal reporting the location information is acquired, the location information is reported in response to the indication information. The location information is used by a base station to select a core network according to the location information, and/or the location information is used by the base station to form a Cell ID and sends the Cell ID to the core network.