Cellular Sector Coverage Estimation via Mobile Device Data

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Solution Overview

Problem

Current methods for estimating wireless coverage of cellular sectors are limited, as they require private information about cell sites and are not publicly accessible, making it difficult to determine the geographic coverage area for any region of interest, especially for mobile devices without GPS capabilities.

Innovation Solution

A system and method that use data samples from mobile devices to determine the minimum coverage area of a wireless base station, employing coverage area metrics and weight determination to estimate the geographic coverage without relying on private information about the cell site's physical characteristics, using a processor to calculate and store the coverage area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If current methods for estimating wireless coverage are used, then coverage area can be determined, but the methods require private information about cell sites that is not publicly accessible

Engineering Contradiction:
Improveaccess to coverage informationVSAvoidavailability of physical characteristics data
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent uses mobile devices as intermediaries to collect and report coverage information. Instead of directly accessing private cell site physical characteristics, the system gathers data from multiple mobile devices that naturally traverse the coverage area, using these devices as mediators to obtain coverage information without requiring direct access to proprietary network data.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system creates a public copy of coverage information by collecting data from multiple mobile devices and reconstructing the coverage area. Rather than accessing the original private physical characteristics data, the patent creates an equivalent representation of coverage boundaries through aggregated mobile device observations, making the information publicly accessible.

Inventive Principle:
Principle #26Copying

2Measurement precision

If physical characteristics of cell sites are used to determine coverage area, then accurate coverage estimation is achieved, but the information is not made available to the public

Engineering Contradiction:
Improvecoverage area accuracyVSAvoidpublic access to coverage data
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

Mobile devices automatically collect and report their own location and signal reception data without requiring manual intervention or direct access to cell site information. The system leverages the self-service capability of mobile devices to gather coverage data passively as users move through coverage areas, achieving accurate coverage mapping through distributed autonomous data collection.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements feedback loops where mobile devices report coverage observations back to the central system, which then refines the coverage area estimation. This iterative feedback process allows the system to progressively improve coverage accuracy by aggregating observations from multiple devices over time, achieving precision comparable to physical characteristics-based methods while maintaining public accessibility.

Inventive Principle:
Principle #23Feedback

3Loss of information

If data samples from multiple mobile devices are collected, then public access to coverage information is enabled, but the complexity of processing and analyzing the data increases

Engineering Contradiction:
Improveavailability of coverage dataVSAvoiddata processing system complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent divides the coverage determination task into segments performed by individual mobile devices. Each device independently collects and reports its own observations, rather than requiring a centralized system to directly measure coverage. This segmentation distributes the data collection burden across many simple devices, reducing the complexity of any single processing node while enabling comprehensive coverage mapping through aggregation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system collects more data samples than strictly necessary by gathering observations from multiple mobile devices throughout the coverage area. This excessive data collection approach simplifies the processing task by providing redundant information that makes coverage boundaries easier to identify through statistical analysis, trading increased data volume for reduced processing complexity.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS8229442B1Derivation of minimum coverage of cellular sectors with cellular-site spatial density and application specific data
Publication Date: 2012.07.24 GOOGLE LLC
  • US8229442B1 patent drawing
  • US8229442B1 patent drawing
  • US8229442B1 patent drawing

AI summary

Systems and methods for estimating the minimum geographic coverage of a wireless base station. In an embodiment, the present invention estimates coverage by (1) receiving real-time wireless base station information from the mobile device; (2) extracting a set of location points and system specific information based on the real-time wireless base station information; (3) determining a coverage area based on the set of location points and the system specific information; (4) adjusting for errors based on various factors (5) storing the determined coverage area.