Cellular Antenna Electrical Tilt Adjustment

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Solution Overview

Problem

Current cellular networks face challenges in optimizing antenna tilt adjustments to effectively manage increasing traffic demand, reduce interference, and enhance coverage, particularly in outdoor and indoor environments, often relying on manual or inefficient methods.

Innovation Solution

A computer-implemented method and system for automatically selecting an electrical tilt angle for cellular antennas based on client resource use parameters, such as Received Total Wideband Power (RTWP), to maintain service quality and minimize interference, using algorithms that iteratively adjust the tilt angle within predefined thresholds and calculate coverage and interference costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual or static RF simulator methods are used to select antenna tilt, then network planning simplicity is maintained, but network optimization efficiency and adaptability to increasing traffic demand deteriorate

Engineering Contradiction:

Improvenetwork optimization efficiencyVSAvoidsystem complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system enables self-service by allowing the network to automatically optimize its own antenna tilt parameters through real-time monitoring of client resource use and automated adjustment mechanisms, eliminating the need for manual intervention while adapting to changing traffic conditions

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system implements feedback loops by continuously monitoring client resource use parameters and using this information to dynamically adjust antenna tilt settings, creating a closed-loop control system that automatically responds to network conditions

Inventive Principle:

Principle #23Feedback

2Area of stationary object

If antenna tilt is adjusted to improve coverage, then coverage extension is achieved, but interference levels increase

Engineering Contradiction:

Improvecoverage areaVSAvoidinterference

Core Design Contradiction:

Area of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The system dynamically changes antenna tilt parameters based on real-time network conditions and client resource use, optimizing the balance between coverage area and interference levels by adjusting the electrical tilt angle according to measured performance metrics

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system transitions from static antenna tilt configurations to dynamic adjustment mechanisms that continuously adapt tilt angles in response to changing traffic patterns and network conditions, allowing the coverage and interference characteristics to evolve over time

Inventive Principle:

Principle #15Dynamics

3Object-generated harmful factors

If antenna tilt is adjusted to reduce interference, then interference levels are reduced, but coverage area decreases

Engineering Contradiction:

ImproveinterferenceVSAvoidcoverage area

Core Design Contradiction:

Object-generated harmful factorsVSArea of stationary object

Solution Approach 1:

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

Inventive Principle:

Principle #15Dynamics

4Reliability

If iterative adjustment of electrical tilt angle is performed to maintain client resource use within thresholds, then service quality is maintained, but computational resources and adjustment time increase

Engineering Contradiction:

Improveservice qualityVSAvoidadjustment time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs iterative adjustments at periodic intervals rather than continuously, monitoring client resource use parameters and making adjustments only when thresholds are approached or exceeded, reducing unnecessary computational overhead while maintaining service quality

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system applies partial adjustments only when and where needed based on measured performance metrics, rather than continuously adjusting all parameters, optimizing the balance between maintaining service quality and minimizing adjustment overhead

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS9491763B2Methods and systems of adjusting antenna electrical tilt

Publication Date: 2016.11.08 QGT INTERNATIONAL INC

AI summary

There is provided a computer-implemented method for selecting an electrical tilt angle for at least one cellular antenna comprising: receiving at least one parameter indicative of mobile client resource use associated with at least one cellular antenna, the at least one cellular antenna being part of a plurality of antennas arranged in at least one cluster as part of a cellular network; and iteratively adjusting an electrical tilt angle of the at least one antenna so that the at least one parameter indicative of client resource use is maintained within at least one predefined threshold, thereby providing users of the mobile clients of the at least one cellular antenna with at least a level of service within the at least one predefined threshold.