UE Assistance Information for Flight Path Updates

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Solution Overview

Problem

Current wireless communication standards, such as 3GPP TS Release 15, rely on RRC reconfiguration for updating flight path information in aerial vehicles, which is inflexible and does not allow the network to promptly recognize changes in the UE's flight path plan unless the UE performs an RRC reconfiguration.

Innovation Solution

Modifying the UE assistance information IE to include indicators for updated flight path information, such as availability, changes, and specific details about waypoints and timestamps, enabling the network to receive timely updates without requiring RRC reconfiguration, and allowing the base station to control when the UE sends these updates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the network relies on RRC reconfiguration for updating flight path information, then the signaling procedure is standardized and structured, but the network cannot promptly recognize changes in the UE's flight path plan

Engineering Contradiction:
Improvestructured signaling procedureVSAvoidtime to recognize flight path changes
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent segments the flight path information update process into two parts: (1) periodic RRC reconfiguration for comprehensive updates, and (2) event-triggered assistance information for immediate changes. This allows the network to receive timely notifications through the assistance information message while maintaining structured updates through RRC reconfiguration, resolving the contradiction between structured signaling and prompt recognition of changes.

Inventive Principle:
Principle #1Segmentation

2Loss of information

If the UE performs RRC reconfiguration to notify the network of updated flight path information, then the network receives complete flight path data, but the process is inflexible and not timely

Engineering Contradiction:
Improvecompleteness of flight path dataVSAvoidflexibility of update timing
Core Design Contradiction:
Loss of informationVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamic triggering mechanisms for flight path information updates. The UE can dynamically decide when to send assistance information based on events such as receiving new flight path data from application layer, entering/leaving geofences, or altitude changes. This dynamic approach provides flexibility in update timing while maintaining information completeness through selective reporting of relevant changes.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of information update frequency from fixed (RRC reconfiguration intervals) to variable (event-triggered). The UE monitors various parameters (application layer data reception, geofence status, altitude) and triggers updates when these parameters change, providing both flexibility in timing and completeness of information through condition-based reporting.

Inventive Principle:
Principle #35Parameter changes

3Loss of time

If the UE sends flight path updates frequently, then the network receives timely information, but the signaling overhead increases

Engineering Contradiction:
Improvetimeliness of flight path informationVSAvoidsignaling overhead
Core Design Contradiction:
Loss of timeVSLoss of energy

Solution Approach 1:

The patent implements feedback mechanisms where the network can configure the UE with specific triggering conditions and thresholds for sending assistance information. The network receives feedback about flight path changes only when predefined events occur (such as entering geofences, altitude changes, or receiving application layer data), rather than continuous updates. This reduces signaling overhead while maintaining timeliness through event-driven feedback.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent changes the update frequency parameter from constant to variable based on event occurrence. Instead of periodic updates, the system uses event-triggered updates where the transmission parameter changes from idle to active only when specific conditions are met (geofence entry/exit, altitude thresholds, application layer data reception). This maintains timeliness when needed while minimizing signaling overhead during normal operation.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3804395B1Flight path information availability and change indication
Publication Date: 2025.01.08 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • EP3804395B1 patent drawingFigure 1
  • EP3804395B1 patent drawingFigure 2
  • EP3804395B1 patent drawingFigure 3~4

AI summary

A method, system and apparatus are disclosed. A base station configured to communicate with a wireless device (UE) is provided. The base station is configured to, and/or comprise a radio interface and/or comprising processing circuitry configured to configure the UE to transmit an indicator associated with flight information in a predefined message associated with UE assistance information, and receive the predefined message, the predefined message including the indicator associated with the flight information.