Site Position Priority Calculation for Wireless Base Station Deployment

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Solution Overview

Problem

The existing methods for determining site position priority orders for new radio base stations are ambiguous, time-consuming, and lack reliability, especially when dealing with a large number of small cell sites, and do not adequately consider business effectiveness or co-siting/RAN sharing scenarios.

Innovation Solution

A site position priority order determination device and method that calculates a weighted sum of nonattainment and estimated attainment degrees of service quality, cell load tightness, cell capacity supply, and competing company dominance, using a radio communication apparatus to measure and transmit data with existing base stations, to determine priority orders based on measurable indicators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual calculation of nonattainment degree and estimated attainment degree by person in charge of site survey is used, then reliability of priority order determination is improved, but time required to create site position priority order list increases

Engineering Contradiction:
Improvereliability of priority order determinationVSAvoidtime required to create site position priority order list
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The determination process is segmented into multiple evaluation indicators (throughput nonattainment degree, cell load tightness degree, capacity supply degree, competing company dominance degree) that are calculated and evaluated separately, then combined through weighted summation. This allows systematic and reliable evaluation while enabling automated processing to reduce time consumption.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transforms subjective manual assessment into objective parameter-based evaluation by defining specific measurable indicators (throughput values, cell load percentages, capacity ratios) with assigned weights. This parameterization enables both reliable determination and automated computation to reduce time requirements.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If comprehensive manual evaluation considering multiple factors is performed, then accuracy of priority order determination is improved, but complexity of determination process increases

Engineering Contradiction:
Improveaccuracy of priority order determinationVSAvoidcomplexity of determination process
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The complex evaluation process is divided into distinct modular indicators: throughput nonattainment degree calculation, cell load tightness degree calculation, capacity supply degree calculation, and competing company dominance degree calculation. Each module handles a specific aspect, improving accuracy while making the overall process more manageable and less complex through structured organization.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple evaluation factors are converted into standardized parameters with defined calculation formulas and weight coefficients. This parameterization maintains comprehensive evaluation accuracy while enabling systematic processing that reduces operational complexity.

Inventive Principle:
Principle #35Parameter changes

3Area of stationary object

If site survey is conducted for large number of small cell sites, then coverage of network design is improved, but time required for site survey increases

Engineering Contradiction:
Improvecoverage of network designVSAvoidtime required for site survey
Core Design Contradiction:
Area of stationary objectVSLoss of time

Solution Approach 1:

The patent establishes a standardized parameter-based evaluation system that can be uniformly applied across numerous small cell sites. By defining measurable indicators (throughput, cell load, capacity ratios) with consistent calculation methods and weight assignments, the system enables efficient processing of large numbers of sites while maintaining comprehensive coverage evaluation.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The evaluation methodology is designed as a replicable framework that can be copied and applied to each small cell site candidate. The standardized indicators and weighted summation approach allow consistent evaluation across multiple sites through systematic replication of the assessment process, reducing time requirements compared to individualized manual surveys.

Inventive Principle:
Principle #26Copying

4Productivity

If automated calculation system is implemented, then productivity of site position priority order list creation is improved, but reliability of determination may deteriorate

Engineering Contradiction:
Improveproductivity of site position priority order list creationVSAvoidreliability of determination
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent defines explicit parameters with standardized calculation formulas (e.g., nonattainment degree = (target throughput - measured throughput) / target throughput × 100%, cell load tightness degree = (cell load - permissible cell load) / permissible cell load × 100%). These parameter definitions ensure automated calculations produce reliable and consistent results while maintaining high productivity through computational efficiency.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3273714B1Site position priority determination device and method
Publication Date: 2020.02.26 NEC CORP
  • EP3273714B1 patent drawingFigure 1
  • EP3273714B1 patent drawingFigure 2
  • EP3273714B1 patent drawingFigure 3

AI summary

[Problem] To provide a site position priority order determination device and associated method with which it is possible to create a high-reliability site position priority order list in a shorter time. [Solution] The present invention has: a radio communication apparatus; a site position priority calculation unit for calculating the degree of nonattainment and the estimated degree of attainment for target service quality at a site position, the degree of tightness of a cell load, the degree of cell capacity supplied in response to demand traffic, and the degree of dominance of competing companies regarding service quality, calculating the weighted sum of these values, and outputting the result as site position priority; a site position priority storage unit for saving the individual site position priority per site position; and a site position priority order determination unit for determining, on the basis of the site position priority per site position, the priority order of a site position at which a new wireless base station is installed, and outputting a site position priority order list indicating the determined priority order of the site position.