Differentiated Positioning via Time-Limited High Accuracy Data

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Solution Overview

Problem

Current wireless communication networks face challenges in providing high accuracy positioning services while protecting user integrity and preventing third-party actors from monetizing positioning information without compensating network operators, as existing systems often require large bandwidth and energy consumption, and allow third-party tracking of device movements.

Innovation Solution

Implementing a method where wireless devices can request and obtain high accuracy positioning information for a predefined period, using a time-varying parameter to decode selected PRS signals, and providing additional PRS resources only upon request, thereby enabling differentiated positioning accuracy while limiting access to third parties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If high accuracy positioning information is continuously provided to all devices, then positioning accuracy is improved, but bandwidth consumption and energy usage increase

Engineering Contradiction:

Improvepositioning accuracyVSAvoidbandwidth and energy consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic positioning information provision where the network selectively provides high accuracy positioning information based on device requests and mobility states. The positioning information validity period is dynamically adjusted, and the network transitions between providing basic and high accuracy information based on service requirements, resolving the contradiction between continuous high accuracy provision and resource conservation

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of positioning information availability by introducing a validity period for high accuracy positioning information. The network provides high accuracy information only during specific time windows when requested, rather than continuously. This temporal parameter change allows high accuracy positioning on demand while conserving bandwidth and energy during periods when such information is not required

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If network fingerprinting is freely accessible to third party actors, then positioning service availability is improved, but user integrity protection and operator control deteriorate

Engineering Contradiction:

Improvepositioning service availabilityVSAvoiduser integrity protection

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces the network as an intermediary between positioning information sources and devices. The network controls and filters positioning information distribution, acting as a mediator that prevents direct third-party access to raw network fingerprinting data. This intermediary role protects user integrity while still enabling positioning services through controlled information provision

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent extracts high accuracy positioning information from the general network fingerprinting data and provides it selectively through controlled mechanisms. By separating high accuracy information from basic positioning data and providing it only upon authenticated requests with time limits, the system maintains service availability while protecting against unauthorized third-party monetization and tracking

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of operation

If basic positioning information is provided to all devices, then positioning accessibility is improved, but positioning accuracy deteriorates

Engineering Contradiction:

Improvepositioning accessibilityVSAvoidpositioning accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent segments positioning information into two distinct levels: basic positioning information available to all devices for general accessibility, and high accuracy positioning information available upon request for enhanced precision. This segmentation allows the system to serve both broad accessibility requirements and high accuracy needs without compromising either aspect

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11388545B2Differentiated positioning

Publication Date: 2022.07.12 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

A solution for providing differentiated positioning services in a wireless communication system is provided. For example, a method to be performed by a wireless device is provided, which includes requesting a high accuracy positioning information from the network, e.g. from a network node. The method further includes obtaining information from the network in response to the request, which is valid for a predefined period of time, and which enables the wireless device to obtain the high accuracy positioning information during the predefined period of time. The method further includes performing positioning or assisting performance of positioning based on the obtained high accuracy positioning information.