Wireless Router Antenna Control System Bandwidth Optimization

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Solution Overview

Problem

Existing antenna control systems in wireless routers are inefficient as they often power all antennas, even when not all are necessary, leading to resource wastage when terminal devices are close by.

Innovation Solution

An antenna control system that includes a bandwidth detecting module, computing module, and control module, which detects the current bandwidth of terminal devices, computes a weighted sum of their bandwidths, and adjusts the number of active antennas based on preset values to optimize resource usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If all antennas are powered on in wireless router, then communication coverage and capacity are improved, but energy consumption and resource waste increase when terminal devices are close by

Engineering Contradiction:
Improvecommunication coverageVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent implements dynamic antenna control by continuously monitoring the number of connected terminal devices and adjusting the number of active antennas accordingly. When few devices are connected, fewer antennas are activated; when more devices connect, additional antennas are powered on. This dynamic adjustment resolves the contradiction by making the antenna system adaptable to real-time communication demands rather than operating in a static all-or-nothing mode.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameter of antenna count based on the number of terminal devices. By establishing a correspondence relationship between device count and active antenna count, the system optimizes energy consumption while maintaining sufficient communication coverage. This parameter adjustment strategy allows the router to scale resource allocation according to actual usage patterns.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If all antennas are powered on in wireless router, then communication capacity is improved, but resource allocation efficiency deteriorates

Engineering Contradiction:
Improvecommunication capacityVSAvoidresource allocation efficiency
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent applies partial action by activating only the necessary number of antennas required to serve the current load of terminal devices, rather than powering on all antennas unnecessarily. This selective activation maintains adequate communication capacity while avoiding the waste of energizing excess antennas that would not contribute meaningfully to current communication demands.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The antenna control system operates autonomously by automatically detecting the number of connected terminal devices and independently deciding which antennas to activate. This self-service mechanism eliminates the need for manual intervention and ensures that resource allocation efficiently matches actual communication needs, improving overall system productivity while reducing energy waste.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9544900B2Antenna control system and method
Publication Date: 2017.01.10 SHENZHEN FULIAN FUGUI PRECISION INDUSTRY CO LTD
  • US9544900B2 patent drawing
  • US9544900B2 patent drawing
  • US9544900B2 patent drawing

AI summary

A wireless router applying an antenna control method includes a number of antennas and communicates with a number of terminal devices via the antennas. The antenna control method includes detecting a current bandwidth Bcur of each terminal device communicating with the wireless router and determining a maximum bandwidth Bmax of each of the terminal devices, computing a weighted sum SUMB of the bandwidths of the terminal devices according to the detected current bandwidth Bcur and the maximum bandwidth Bmax of each terminal device, comparing the weighted sum SUMB of the bandwidths with a first preset value, and turning on or turning off at least one of the antennas according to the compared result. A wireless router is also provided.