WLAN Router Transmit Power Adjustment for Coverage Portability
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Solution Overview
Problem
Conventional wireless routing devices for WLANs fail to meet the requirements for both wide coverage and portability, as they either consume high power and are non-portable for household coverage or are limited in range due to low power transmission for portability.
Innovation Solution
A WLAN routing device with a radio frequency transmitting module that adjusts transmit power based on power indication information, using a dual-link system where one link is amplified for wide coverage and the other is not, allowing for adaptable power output depending on power source (external or battery) to balance portability and coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the wireless routing device transmits radio network signals at high power to achieve wide coverage, then the coverage area is improved, but the power consumption increases and portability is compromised
Solution Approach 1:
The patent implements dynamic transmit power adjustment by detecting whether the device is portable or fixed through acceleration sensors and other detection means. The system dynamically switches between low-power mode for portable use and high-power mode for fixed installation, resolving the contradiction between coverage area and power consumption based on actual usage scenarios
Solution Approach 2:
The patent changes the transmit power parameter based on detected portability status. When portable mode is detected, the system reduces transmit power to conserve battery energy. When fixed installation is detected, the system increases transmit power to maximize coverage area, thus adapting the power consumption and coverage area parameters to different operational contexts
2Use of energy by moving object
If the wireless routing device reduces transmit power to meet portability requirements, then power consumption is reduced, but the coverage area becomes limited
Solution Approach 1:
The system dynamically adjusts transmit power based on real-time detection of portability status. When the device is determined to be in fixed installation mode through acceleration sensor detection and other means, the system automatically increases transmit power to achieve wide coverage, thus resolving the coverage limitation while maintaining portability benefits when actually portable
3Area of stationary object
If the wireless routing device is designed for household coverage with wall penetration capability, then the coverage area is improved, but the device requires external power supply and loses portability
Solution Approach 1:
The patent makes the wireless routing device universal by enabling it to function in both portable and fixed installation modes. Through portability detection and adaptive power adjustment, the single device can serve as either a portable router with limited range or a fixed household router with extended coverage, thus achieving multi-functionality that resolves the contradiction between coverage area and portability
Solution Approach 2:
The system changes operational parameters including transmit power and working mode based on detected installation type. When fixed installation is detected, the device activates high-power transmission and wall-penetration capabilities for household coverage. When portable mode is detected, it switches to low-power mode, thus adapting parameters to achieve both wide coverage and portability in different scenarios
Data Source
AI summary
A routing device and a signal transmitting method for a Wireless Local Area Network (WLAN) are provided. The device includes: a radio frequency transmitting module, adapted to: generate radio network signals of the WLAN, and adjust the transmit power of the radio network signals according to power indication information; and an antenna module, adapted to transmit the radio network signals according to the adjusted transmit power. The method includes: generating radio network signals of the WLAN, and adjusting the transmit power of the radio network signals according to power indication information; and transmitting the radio network signals according to the adjusted transmit power. Through the routing device and the signal transmitting method, the radio network signals may be transmitted according to different transmit powers. Therefore, the routing device can meet the requirement for portability, fixed installation, and wide coverage.