UE Position Integrity Requirements for Reliable Location Estimates

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Solution Overview

Problem

Current wireless communication systems lack support for providing integrity requirements for UE-based position estimate reliability determination, which is crucial for high-precision positioning applications requiring high integrity and reliability, especially in use-cases like autonomous driving and emergency services.

Innovation Solution

A method where wireless devices can indicate support for or request integrity requirements for position estimate reliability determination, obtaining these requirements from network nodes, and using them for determining position estimate reliability, while refraining from using preconfigured values.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If integrity requirements are not provided for position estimate reliability determination, then positioning systems can operate with simpler procedures, but the reliability and integrity of positioning for critical applications cannot be ensured

Engineering Contradiction:

Improveposition estimate reliabilityVSAvoidpositioning system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The network node provides integrity requirements in advance to the wireless device before positioning operations. These pre-provided requirements include parameters such as protection level, alert limit, and time to alert, which the device uses to determine position estimate reliability without needing complex real-time calculations or additional network involvement during the positioning process.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The wireless device autonomously determines position estimate reliability by using the integrity requirements received from the network node. The device independently evaluates whether positioning integrity requirements are met without requiring continuous network intervention or complex external validation mechanisms, enabling self-service reliability assessment.

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If preconfigured integrity values are used, then positioning operations can proceed without network involvement, but the ability to adapt to specific integrity requirements for different applications is lost

Engineering Contradiction:

Improveadaptability to integrity requirementsVSAvoidtime for integrity requirement acquisition

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The wireless device indicates its capability to determine position estimate reliability based on integrity requirements to the network node. This capability indication enables the network to provide appropriate integrity requirements tailored to the specific application and device, creating a feedback loop that ensures adaptability while minimizing acquisition time through efficient capability negotiation.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20260046824A1Methods for UE-based location integrity reliability determination

Publication Date: 2026.02.12 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

Systems and methods for using integrity requirements to determine position estimate reliability are provided herein. If a device indicates a capability to support integrity reliability determination and/or has requested integrity requirements, then the device shall use the provided integrity requirements for integrity reliability determination. If a device does not indicate a capability support and/or does not request integrity requirements, then the device can use other available integrity requirements for integrity reliability determination.