Trusted Location Verification for UE Access Control

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Solution Overview

Problem

Existing wireless communication systems face inaccuracies in user equipment (UE) location verification during network registration, leading to erroneous access denials or permissions, paging failures, and inefficient network resource allocation due to untrusted or incorrect location information.

Innovation Solution

The system provides trusted location information of UE obtained through network-based verification, which is used to determine access permissions, registration areas, paging areas, and AMF selection, thereby improving accuracy and efficiency in network operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the UE sends self-declared location information to the network, then the registration process is simple and fast, but the location information may be untrusted or incorrect leading to erroneous access decisions

Engineering Contradiction:

Improveregistration speedVSAvoidlocation information accuracy

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent introduces a location verification function (LVF) as an intermediary component within the network that independently verifies the authenticity of UE-declared location information. The LVF compares the declared location against network-maintained location data and provides a verification result, thereby mediating between the UE's self-declaration and the network's access control decisions without significantly extending the registration timeline.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The network performs preliminary location verification by maintaining and comparing location information before making access control decisions. The AMF retrieves stored location information and compares it with the UE's current location declaration in advance, ensuring location accuracy is verified before access permissions are granted, thus preventing erroneous access denials or permissions.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the network performs location verification using stored location information, then location accuracy improves, but the complexity of the registration process increases

Engineering Contradiction:

Improvelocation information accuracyVSAvoidregistration process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The AMF performs multiple functions within a single entity: it acts as both the access management function and the location verification function. By integrating the LVF within the AMF, the patent eliminates the need for separate verification infrastructure, reducing overall system complexity while maintaining location verification capabilities. The AMF uses its existing stored location information to perform verification without requiring additional specialized components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Loss of energy

If untrusted location information is used for paging, then network resources are saved, but paging failures occur when UE location is incorrect

Engineering Contradiction:

Improvenetwork energy consumptionVSAvoidpaging success rate

Core Design Contradiction:

Loss of energyVSReliability

Solution Approach 1:

The patent replaces the manual or heuristic process of determining paging locations with an automated verification mechanism. The AMF automatically retrieves stored location information and compares it with the UE's current location declaration, substituting intelligent automated verification for simpler but unreliable location assumptions. This ensures paging messages are directed to correct locations without excessive energy consumption.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Reliability

If the network stores and verifies location information, then access control accuracy improves, but the time required for registration increases

Engineering Contradiction:

Improveaccess control accuracyVSAvoidregistration time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250211997A1Method and device for processing information, communication device, and storage medium

Publication Date: 2025.06.26 BEIJING XIAOMI MOBILE SOFTWARE CO LTD

AI summary

A method and device for processing information, a communication device, and a storage medium are provided. The method, performed by a first network element, includes: obtaining trusted location information of a user equipment (UE); and sending the trusted location information to a second network element or the UE.