IP Addressable Antenna Line Devices Replace Wired AISG
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Solution Overview
Problem
Existing antenna line devices (ALDs) in cellular base station installations rely on hard-wired cables for AISG communication, which poses reliability risks and affects passive intermodulation (PIM) performance, and the AISG standard is limited by slow data rates and inconvenient installation processes.
Innovation Solution
Implementing IP addressable antenna line devices that communicate via wireless protocols such as Z-Wave, 6LowPAN, Thread, WiFi, GSM cellular, 3G/4G/LTE cellular, Sigfox, Neul, and LoRaWAN, allowing for wireless communication and eliminating the need for hard-wired cables, and enabling remote control and data collection through a wireless modem.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hard-wired cables are used for AISG communication between base station and antenna line devices, then reliable physical connection is established, but installation complexity increases and passive intermodulation performance deteriorates
Solution Approach 1:
The patent replaces the mechanical cable connection system with a wireless communication system. Antenna line devices communicate with the base station controller via wireless protocols (Zigbee, Z-Wave, WiFi, cellular) instead of physical cables, eliminating the need for cable installation, connectors, and physical routing while maintaining reliable communication links.
Solution Approach 2:
The patent introduces wireless communication modules as intermediary components between the antenna line devices and the base station controller. These modules enable data transmission without direct physical connection, serving as a mediator that replaces the cable-based communication path while preserving system reliability.
2Reliability
If hard-wired cables are used for AISG communication, then stable connection is maintained, but passive intermodulation performance is affected
Solution Approach 1:
The patent eliminates cable-based mechanical connections that generate passive intermodulation products. By substituting wireless communication protocols for wired connections, the system removes the sources of PIM (connectors, cable interfaces, impedance discontinuities) while maintaining stable and reliable communication between controllers and antenna line devices.
3Adaptability or versatility
If AISG communication protocol is used over dedicated cable, then device compatibility is ensured, but data rate remains limited to 9600 baud
Solution Approach 1:
The patent changes the communication parameter medium from wired electrical signals to wireless electromagnetic signals. This enables the system to utilize higher data rate wireless protocols (WiFi, cellular, Zigbee) while maintaining device compatibility through standardized communication interfaces and protocols, thereby increasing data transmission speed beyond the 9600 baud limitation of wired AISG.
4Ease of operation
If handheld controllers are used for installation and testing of AISG connections, then precise control is achieved, but installation time increases
Solution Approach 1:
The patent enables antenna line devices to automatically establish wireless connections and perform self-configuration during installation. The devices can autonomously register with the base station controller, transmit their identification information, and begin operation without requiring manual cable connection and configuration using handheld controllers, thereby significantly reducing installation time while maintaining operational precision.
Data Source
AI summary
A system includes a base station, an antenna coupled to the base station, and an antenna line device coupled to the antenna. The antenna line device is Internet Protocol (IP) addressable and is configured to receive a control signal from a controller.