Terminal Flight Path Reporting in 5G Mobility Management

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Solution Overview

Problem

There is a need for an efficient method to report flight path updates in mobile communication systems, particularly for aerial units like unmanned aerial vehicles (UAVs), to optimize mobility management and reduce signaling load on base stations.

Innovation Solution

A method where a terminal in a wireless communication system receives a flight path update notification from a base station and transmits an update indication, allowing the base station to request and receive updated flight path information, including waypoints and time information, using specific RRC messages to manage mobility and handovers efficiently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal continuously reports flight path information to the base station, then the base station can maintain accurate mobility management, but the signaling load increases

Engineering Contradiction:
Improvemobility management accuracyVSAvoidsignaling load
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The terminal periodically reports flight path information to the base station at predetermined intervals rather than continuously. The base station configures the reporting interval through RRC messaging, and the terminal sends flight path information (waypoints, altitude, speed) only at these periodic intervals, reducing signaling load while maintaining adequate mobility management

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The reporting behavior changes based on flight status parameters. When the terminal detects a change in flight path parameters (such as entering a new geographic area or changing flight direction), it triggers an immediate report regardless of the periodic interval, ensuring accurate mobility management during critical transitions

Inventive Principle:
Principle #35Parameter changes

2Speed

If the terminal reports flight path updates immediately upon change, then the base station can respond quickly to mobility changes, but the signaling frequency increases

Engineering Contradiction:
Improveresponse speed to flight path changesVSAvoidsignaling frequency
Core Design Contradiction:
SpeedVSQuantity of substance

Solution Approach 1:

The base station pre-configures the terminal with reporting parameters including geographic area information and reporting thresholds before the terminal begins flight. When the terminal enters a configured geographic area or detects a significant flight path change, it immediately reports, ensuring quick base station response without requiring continuous monitoring

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The base station receives flight path information from the terminal and provides feedback by updating mobility management decisions, handover configurations, and reporting parameters. This closed-loop feedback ensures the base station responds appropriately to flight changes while optimizing future reporting requirements

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20240096223A1Method and apparatus for reporting flight path of terminal in mobile communication system
Publication Date: 2024.03.21 SAMSUNG ELECTRONICS CO LTD
  • US20240096223A1 patent drawing
  • US20240096223A1 patent drawing
  • US20240096223A1 patent drawing

AI summary

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A UE in a 5G or 6G communication system for supporting a higher data transmission rate that may efficiently report a flight path of the UE is disclosed. The UE may include a transceiver; and at least one processor configured to receive, from a base station via the transceiver, a first message for configuring a flight path update notification, identify that a flight path is updated, and transmit, to the base station via the transceiver, a second message including a flight path update indication for indicating that the flight path is updated based on the first message and the identification.