Rotating Directional Antenna Control for Wireless Router Coverage

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Solution Overview

Problem

Existing wireless routers with omnidirectional antennas have limited application due to low gain, short communication distance, and low signal forwarding speed, making them unsuitable for medium/long-distance weak field devices and high-speed devices.

Innovation Solution

Incorporating a directional antenna with an adjustable beam direction and a driving apparatus to rotate the antenna, allowing it to coincide with target beams in a beam lookup table, enhancing coverage for both common and medium/long-distance weak field devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If omnidirectional antenna is used, then 360° coverage is achieved, but gain is small and communication distance is short

Engineering Contradiction:

Improvecoverage rangeVSAvoidsignal strength

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent divides the antenna system into two independent parts: an omnidirectional antenna for 360° coverage and a directional antenna for high-gain focused transmission. This segmentation allows each antenna to specialize in its strength, resolving the contradiction between wide coverage and strong signal.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The wireless router is designed to support both omnidirectional and directional transmission modes, making it universally applicable to different device types (common devices, medium/long-distance weak field devices, and high-speed devices).

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If directional antenna with adjustable beam is used, then gain and communication distance are improved, but device complexity increases

Engineering Contradiction:

Improvesignal strengthVSAvoidantenna control system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent pre-establishes a beam lookup table containing optimal beam directions for different device types before actual operation. This preliminary preparation eliminates the need for complex real-time beam searching, reducing control complexity while maintaining high signal strength.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces complex mechanical beam steering mechanisms with a simpler system that selects from pre-defined beam directions stored in the lookup table, reducing mechanical complexity while achieving the same directional focusing effect.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If all orientations are traversed to find target beam, then complete coverage is achieved, but control difficulty and power consumption increase

Engineering Contradiction:

Improvebeam coverageVSAvoidpower consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The beam lookup table is pre-computed and stored, containing the optimal beam direction for each device type. This eliminates the need to traverse all orientations during operation, significantly reducing power consumption and control difficulty.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Instead of traversing all possible orientations, the system only checks the specific beam directions stored in the lookup table that are sufficient to cover all device types. This partial action approach achieves complete coverage with minimal effort.

Inventive Principle:

Principle #16Partial or excessive action

4Measurement precision

If beam lookup table with many beams is used, then coverage precision is improved, but control difficulty increases

Engineering Contradiction:

Improvebeam direction precisionVSAvoidcontrol system

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent creates different beam subsets tailored to specific device types (common devices, medium/long-distance weak field devices, high-speed devices). Each subset contains only the beams needed for that device type, optimizing precision without unnecessary complexity.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12438287B2Wireless router and control method thereof

Publication Date: 2025.10.07 HONOR DEVICE CO LTD

AI summary

A wireless router and a control method thereof, to improve application universality of the wireless router. The wireless router includes an omnidirectional antenna, a directional antenna, and a driving apparatus. The driving apparatus is connected to the directional antenna, the driving apparatus is configured to drive the directional antenna to rotate, so that a beam direction of the directional antenna coincides with a direction of a target beam in a beam lookup table, and the target beam is capable of covering a target device. The beam lookup table includes a set formed by beams when the directional antenna rotates to a plurality of different orientations under driving by the driving apparatus.