Network Side Device Valid Positioning Assistance Information

Solution Overview

Problem

In wireless communication systems, pre-configured positioning assistance information for user equipment (UE) may become invalid due to movement, leading to reduced positioning accuracy as the distance between the UE and transmission-reception points (TRPs) changes, making existing methods ineffective in ensuring accurate positioning.

Innovation Solution

A method where a network side device sends a location information request message to the UE, including valid positioning assistance information such as measurement priority information of position reference signal (PRS) resources and reference PRS resource information, ensuring that the UE performs accurate PRS measurements based on current conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If pre-configured positioning assistance information is used, then positioning efficiency is improved, but positioning accuracy deteriorates due to UE movement

Engineering Contradiction:

Improvepositioning efficiencyVSAvoidpositioning accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The network side device performs preliminary action by pre-configuring positioning assistance information including measurement priority information and reference PRS resource information before the UE needs positioning. This allows the UE to quickly access and use the pre-configured information without delay, improving positioning efficiency while maintaining accuracy through subsequent validation mechanisms.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback by having the UE report its location information back to the network side device. The network side device uses this feedback to determine whether the pre-configured positioning assistance information is still valid and to update the measurement priority information accordingly, ensuring positioning accuracy while maintaining efficiency.

Inventive Principle:

Principle #23Feedback

2Speed

If measurement priority information is pre-configured, then positioning speed is improved, but reliability deteriorates when UE moves to different locations

Engineering Contradiction:

Improvepositioning speedVSAvoidpositioning reliability

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The patent applies dynamics by making the measurement priority information adjustable rather than fixed. The network side device can dynamically update the measurement priority information based on the UE's current location and movement status, allowing the system to adapt to changing conditions while maintaining both speed and reliability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes parameters by updating the measurement priority information and valid area information based on the UE's location. When the UE moves to a different location, the network side device modifies the priority parameters and validity parameters to reflect the current situation, ensuring reliable positioning while maintaining fast processing.

Inventive Principle:

Principle #35Parameter changes

3Measurement precision

If positioning assistance information is updated frequently, then positioning accuracy is improved, but device complexity increases

Engineering Contradiction:

Improvepositioning accuracyVSAvoidinformation management complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The network side device performs preliminary action by pre-configuring positioning assistance information including measurement priority information and reference PRS resource information before the UE needs positioning. This allows the UE to quickly access and use the pre-configured information without delay, improving positioning efficiency while maintaining accuracy through subsequent validation mechanisms.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback by having the UE report its location information back to the network side device. The network side device uses this feedback to determine whether the pre-configured positioning assistance information is still valid and to update the measurement priority information accordingly, ensuring positioning accuracy while maintaining efficiency.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20250012890A1Valid information indication method, and user equipment

Publication Date: 2025.01.09 BEIJING XIAOMI MOBILE SOFTWARE CO LTD

AI summary

A method for indicating valid information is performed by a network side device. The method includes sending a location information request message to a UE, wherein the location information request message comprises valid information of positioning assistance information, and the valid information comprises at least one of: measurement priority information of a positioning reference signal (PRS) resource and information of a reference PRS resource in the positioning assistance information, or valid area information of the positioning assistance information.