Adjustable Beam Direction Antenna for Dynamic Microcell Coverage

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Solution Overview

Problem

Existing mobile communication networks require selection of new sites for micro base stations when hotspot areas change, leading to inflexibility and increased network maintenance costs.

Innovation Solution

A microcell creating method that adjusts the beam width and direction of highly directional antennas based on location information to generate microcell coverage without changing the micro base station's location, using either hotspot area or relay station location information to establish microcell coverage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a micro base station is set up in a hotspot area to provide high system capacity, then the communication traffic handling capability is improved, but when the hotspot area changes, a new site needs to be selected which increases network maintenance costs and reduces flexibility

Engineering Contradiction:
Improvenetworking flexibilityVSAvoidnetwork maintenance cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent applies the Dynamics principle by making the antenna beam direction adjustable rather than fixed. The micro base station uses an antenna with adjustable beam direction that can be dynamically changed to track and serve moving hotspot areas, eliminating the need to relocate the base station itself. This dynamic adjustment capability provides networking flexibility while avoiding the costs associated with physical relocation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies the Parameter changes principle by changing the beam direction parameter of the antenna to adapt to different hotspot locations. Instead of moving the entire base station infrastructure, the system adjusts the directional parameter of the antenna beam to point toward the current hotspot area, thereby maintaining service capability with minimal cost and maximum flexibility.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the micro base station location is changed to follow the hotspot area, then the coverage is maintained, but the networking flexibility is reduced and maintenance costs increase

Engineering Contradiction:
Improvecoverage continuityVSAvoidnetworking flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent resolves this contradiction by implementing a dynamic beam steering mechanism. The antenna beam direction is continuously adjusted to track the hotspot area, ensuring coverage continuity without requiring physical relocation of the base station. This dynamic tracking approach maintains reliable coverage while preserving networking flexibility, as the base station remains in a fixed location with adjustable radiation patterns.

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach enhances networking flexibility and reduces network maintenance costs by allowing microcell coverage adjustments without relocating micro base stations, even as hotspot areas change.

Implementation Method 1

setting a beam width and a beam direction of a highly directional antenna according to location information of a hotspot area; and generating microcell coverage for the hotspot area by using beams generated by the highly directional antenna

Methodology Applied
Scientific EffectBeam forming:

Data Source

PatentUS8750890B2Microcell creating method based on macrocell network coverage
Publication Date: 2014.06.10 APEX NET LLC
  • US8750890B2 patent drawing
  • US8750890B2 patent drawing
  • US8750890B2 patent drawing

AI summary

A microcell creating method based on macrocell network coverage and a base station are disclosed. The method may include setting a beam width and a beam direction of a highly directional antenna according to location information of a hotspot area, and generating microcell coverage or the hotspot area by using beams generated by the highly directional antenna. Embodiments of the present invention may keep the micro base station location unchanged when the hotspot area changes, and may implement microcell coverage for the hotspot area simply by adjusting the beam width and the beam direction of the highly directional antenna.