Smart Antenna Alignment for AFC Coverage Overlap Control
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Solution Overview
Problem
Traditional wireless access point antenna devices are passive components that cannot ensure correct installation, leading to potential interference and non-compliance issues due to inaccurate RF cabling loss measurement and antenna alignment challenges, especially in the 6 GHz band where directional coverage is required for AFC coordination.
Innovation Solution
A wireless device equipped with a Smart Antenna Module (SAM) that includes sensors and a GNSS receiver to automatically report antenna position, orientation, and radiation pattern envelope to an AFC system, allowing for precise RF signal coverage calculation and adjustment to avoid overlap with authorized devices, eliminating the need for professional installers and reducing compliance errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional passive antenna devices are used, then device complexity is low, but installation precision and RF cabling loss measurement accuracy deteriorate
Solution Approach 1:
The antenna device performs self-measurement of RF cabling loss and self-alignment through integrated sensors and processing circuitry, eliminating the need for external measurement equipment and professional installers. The device automatically characterizes its own RF path and reports this information to the AFC system.
Solution Approach 2:
The patent replaces manual mechanical measurement processes with electronic sensing and automated processing. Sensors detect antenna orientation and position, while processing circuitry calculates RF cabling loss and generates alignment instructions, substituting manual installer actions with automated electronic systems.
2Productivity
If manual antenna alignment is performed, then installation flexibility is high, but installation time and error rate increase
Solution Approach 1:
The antenna device pre-characterizes its RF path and calculates optimal alignment parameters before deployment. The processing circuitry determines RF cabling loss and generates alignment instructions in advance, so that when the antenna is installed, the AFC system can immediately execute precise alignment without manual measurement.
Solution Approach 2:
The system uses sensor feedback from the antenna device to continuously monitor and adjust alignment. The processed sensor data provides real-time information about antenna position and orientation, enabling the AFC system to automatically correct alignment issues and ensure accurate RF coverage.
3Adaptability or versatility
If directional antenna coverage is implemented, then spectrum efficiency improves, but installation precision requirements increase
Solution Approach 1:
The antenna device automatically determines its own directional coverage characteristics through self-measurement of RF path and sensor data. This self-characterization enables the AFC system to accurately model the antenna's directional pattern without requiring precise manual installation parameters, as the device self-calibrates its coverage profile.
Solution Approach 2:
The system dynamically adjusts antenna operating parameters based on measured RF characteristics and sensor data. The processing circuitry modifies transmission parameters such as power levels and beam direction based on actual RF path conditions, enabling adaptive directional coverage that compensates for installation variations.
Data Source
AI summary
Implementations of the present disclosure relate to a method implemented at a wireless device. In this method, the wireless device transmits first information related to the position, orientation and a part number of the antenna of the wireless device to an automatic frequency coordination (AFC) system, and the part number is related to the radiation pattern envelope (RPE) of the antenna. Then, the wireless device can receive second information related to the RF signal coverage of the antenna from the AFC system, wherein the RF signal coverage is determined by the AFC system based on the received first information and the transmitting power of the wireless device. Then, the wireless device can adjust at least one angle and/or transmitting power of the antenna based on the second information so that the RF signal coverage of the antenna does not overlap with the RF signal coverage of the adjacent antenna.