HAP Service Cell Selection via Listening Cells

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Solution Overview

Problem

Conventional methods for providing wireless communication using high altitude platforms (HAPs) face inefficiencies in resource utilization and capacity management, particularly in associating user equipment with service cells, leading to limitations in power and capacity.

Innovation Solution

A method and apparatus that utilize directional antennas on HAPs to provide listening cells, determine qualifying cells based on user equipment density or priority, and dynamically create service cells with optimized coverage areas using clustering algorithms to maximize capacity and resource efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional cell association procedures are used to associate user equipment with service cells provided by HAPs, then user equipment can be connected to the network, but resource utilization becomes inefficient and power and capacity limits are reached

Engineering Contradiction:
Improvenetwork connectivityVSAvoidresource utilization efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system performs preliminary actions by first providing listening cells across the service area before actually establishing full service cells. User equipment associates with listening cells, and only after determining that a listening cell meets predetermined conditions (such as minimum user equipment count) does the system activate it as a full service cell. This preliminary association phase allows the system to gather information about user distribution and demand patterns before committing resources to establish permanent service cells, thereby improving resource utilization efficiency while maintaining network connectivity.

Inventive Principle:
Principle #10Preliminary action

2Area of stationary object

If service cells are provided across the entire service area, then coverage is maximized, but resource utilization decreases due to providing service in low-density areas

Engineering Contradiction:
Improveservice coverage areaVSAvoidresource utilization
Core Design Contradiction:
Area of stationary objectVSProductivity

Solution Approach 1:

The system implements dynamic cell activation where listening cells are initially provided across the entire service area to ensure potential coverage, but full service cell activation is dynamic and conditional. The system continuously monitors predetermined conditions such as user equipment density, and only activates service cells in areas where demand thresholds are met. This dynamic approach allows the service coverage area to be maximized in terms of potential reach, while actual resource allocation is optimized by activating service functionality only where needed, thus improving resource utilization without sacrificing potential coverage.

Inventive Principle:
Principle #15Dynamics

3Quantity of substance

If directional antennas are used to create cells, then capacity and capacity density can be increased, but the complexity of determining where to point beams increases

Engineering Contradiction:
Improvecommunication capacityVSAvoidbeam pointing control complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The system implements self-service through automated algorithms that determine optimal beam pointing locations based on user equipment association data. Instead of requiring complex manual configuration or centralized control, the system allows listening cells to self-organize as user equipment associates with them, and the predetermined conditions for service cell activation are automatically evaluated and executed. This self-organizing approach increases communication capacity through directional antennas while reducing the operational complexity of beam pointing control, as the system autonomously adapts to user distribution patterns.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12088397B2Service cell selection
Publication Date: 2024.09.10 THE UNIV OF YORK
  • US12088397B2 patent drawing
  • US12088397B2 patent drawing
  • US12088397B2 patent drawing

AI summary

Service cells are provided for wireless communication between user equipment and a core network. An aerial vehicle provides service cells for wireless communication between user equipment (UE) and a core network. A plurality of listening cells are provided across a service area associated with an aerial vehicle, and user equipment located in the service area are associated with at least one listening cell. It is determined which listening cells are qualifying listening cells that are listening cells that satisfy at least one predetermined condition, and subsequently at least one service cell in the service area is provided for each qualifying listening cell.