Aerial UE Flight Status Reporting for Interference Management

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Solution Overview

Problem

Current wireless communication systems are not optimally designed to handle airborne wireless devices, leading to inefficiencies in interference management and handover processes, as airborne UEs can cause increased interference and require different radio propagation management compared to terrestrial UEs.

Innovation Solution

The system introduces new flight statuses and methods for airborne UEs to report their status to the base station, including hovering, high-speed flight, and altitude changes, allowing for more precise interference mitigation and mobility management, decoupling flight status reporting from RRM measurement reports and enabling better network configuration based on the UE's aerial status.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If terrestrial communication protocols are used for airborne UEs, then system compatibility is maintained, but interference management and handover efficiency deteriorate

Engineering Contradiction:

Improvesystem compatibilityVSAvoidinterference management

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements dynamic flight status reporting where airborne UEs transmit status information (hovering, cruising, taking off, landing) to the network. This enables the network to dynamically adjust communication parameters, power control settings, and handover strategies based on the UE's current flight phase, thereby improving interference management and connection reliability while maintaining protocol compatibility

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent introduces flight status as a new parameter that changes the network's behavior. Different flight statuses trigger different parameter configurations for power control, resource allocation, and mobility management. This parameter-based approach allows the system to adapt to airborne UE characteristics without requiring fundamental protocol changes

Inventive Principle:

Principle #35Parameter changes

2Loss of energy

If flight status reporting is integrated into RRM measurement reports, then signaling overhead is reduced, but measurement report complexity increases

Engineering Contradiction:

Improvesignaling overheadVSAvoidmeasurement report complexity

Core Design Contradiction:

Loss of energyVSDevice complexity

Solution Approach 1:

The patent segments the status reporting by introducing distinct flight status indicators for different operational phases (hovering, cruising, taking off, landing). This segmentation allows the network to process specific status information independently within the RRM measurement report structure, reducing overall complexity while maintaining comprehensive monitoring

Inventive Principle:

Principle #1Segmentation

3Measurement precision

If detailed flight status information is transmitted, then network configuration accuracy improves, but uplink signaling overhead increases

Engineering Contradiction:

Improveflight status detectionVSAvoiduplink signaling overhead

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent implements partial reporting where UEs transmit flight status information selectively based on status changes or network requests. Rather than continuously reporting all possible parameters, the system uses targeted status indicators that provide sufficient precision for network configuration while minimizing uplink signaling overhead

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS11051185B2Configuration for flight status indication of an aerial UE

Publication Date: 2021.06.29 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

A base station (300a) transmits, to a wireless device (100), a criteria for determining that the wireless device (100) has a status. The criteria comprises a height threshold. The wireless device (100) receives the criteria for determining that the wireless device (100) has the status from the base station (300a). The wireless device (100) transmits an indication of the status of the wireless device (100) to the base station (300a). The base station (300a) receives the indication of the status of the wireless device (100).