Sidelink Positioning Session Setup via Assistance Data Inheritance

Solution Overview

Problem

Current wireless communication systems face inefficiencies in establishing sidelink positioning sessions, particularly in scenarios requiring quick setup and low energy consumption, such as vehicular and industrial IoT applications, where the standard signaling procedures are not optimized for minimal latency and energy usage.

Innovation Solution

The method involves establishing a first positioning session between a first device and a third device, and sending positioning assistance data from the first device to a second device, which allows the second device to inherit the configuration of the first positioning session, thereby enabling a fast-track establishment of a second positioning session with the third device, minimizing initialization time and energy expenditure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If standard signaling procedures are used for establishing sidelink positioning sessions, then positioning sessions can be established with proper protocol compliance, but the setup time and energy consumption increase

Engineering Contradiction:

Improveprotocol complianceVSAvoidsession setup time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The first device performs preliminary actions by determining positioning assistance data from an existing first positioning session and sending it to the second device before the second positioning session is established. This preliminary preparation of positioning assistance data allows the second device to quickly establish positioning without going through complete standard signaling procedures, thus reducing setup time while maintaining protocol compliance.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent applies copying by having the second device inherit positioning assistance data from the first device's existing positioning session. Instead of creating a completely new positioning session from scratch, the system copies relevant positioning configuration and assistance data, allowing rapid session establishment while ensuring proper protocol adherence through validation and permission checks.

Inventive Principle:

Principle #26Copying

2Reliability

If standard signaling procedures are used for establishing sidelink positioning sessions, then positioning sessions can be established with proper protocol compliance, but energy consumption increases

Engineering Contradiction:

Improveprotocol complianceVSAvoiddevice energy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The first device performs preliminary actions by determining positioning assistance data from an existing first positioning session and sending it to the second device before the second positioning session is established. This preliminary preparation eliminates the need for the second device to perform energy-consuming signaling and configuration procedures, significantly reducing overall energy consumption while maintaining protocol compliance through validation mechanisms.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent applies copying by having the second device inherit positioning assistance data from the first device's existing positioning session. Instead of creating a completely new positioning session from scratch, the system copies relevant positioning configuration and assistance data, allowing rapid session establishment while ensuring proper protocol adherence through validation and permission checks.

Inventive Principle:

Principle #26Copying

3Loss of time

If positioning assistance data is shared between devices, then session establishment time is reduced, but system complexity and permission management overhead increase

Engineering Contradiction:

Improvesession establishment timeVSAvoidpermission management complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The first device acts as an intermediary between the positioning system and the second device. It receives permission from the third device (positioning reference unit), determines appropriate positioning assistance data, and selectively provides it to the second device. This intermediary role simplifies permission management compared to direct peer-to-peer permission negotiation, reducing system complexity while enabling fast session establishment.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP4345484A1Method, apparatus and computer program

Publication Date: 2024.04.03 NOKIA TECHNOLOGIES OY

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AI summary

There is provided a first device comprising: means for establishing a first positioning session between the first device and a third device; and means for causing sending, from the first device to a second device, positioning assistance data comprising information associated with a configuration of the first positioning session.