Multi-Antenna Line Order Detection via Downtilt Signal Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The complexity of connections between antenna ports and remote radio unit ports in multi-antenna networks leads to manual detection errors, resulting in increased costs for secondary installations due to incorrect line orders.
Innovation Solution
A method involving signal strength analysis and correlation coefficient calculations is employed to quickly and accurately determine correct connections by adjusting downtilt angles and analyzing signal strength changes and polarization correlations in multi-antenna networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual detection is used to check line order consistency between antenna ports and RRU ports, then connection correctness can be verified, but detection errors occur leading to increased secondary installation costs
Solution Approach 1:
The patent replaces manual mechanical detection with automated electronic detection using signal transmission and processing. The system transmits test signals through antenna cables to RRUs and automatically analyzes received signals to determine line order, eliminating human error in manual verification processes.
Solution Approach 2:
The system performs self-detection by automatically transmitting test signals, receiving responses, and analyzing results without requiring external manual intervention. The automated detection system identifies line order mismatches and generates alerts independently, reducing reliance on human operators.
2Adaptability or versatility
If the quantity of antennas in a network device increases to improve communication performance, then system capability is enhanced, but connection complexity between antenna ports and RRU ports increases
Solution Approach 1:
The patent segments the detection process into distinct stages: signal transmission phase, signal reception phase, and analysis phase. By dividing the complex multi-antenna detection into manageable segments, the system can efficiently handle increased antenna quantities without proportionally increasing overall system complexity.
Solution Approach 2:
The patent creates a universal detection mechanism that can handle any quantity of antennas through a standardized process. The same signal transmission and analysis methodology applies whether detecting 2 antennas or 64 antennas, making the system scalable and adaptable to different antenna configurations without requiring different detection approaches.
3Measurement precision
If automated detection methods are implemented to improve detection accuracy, then detection precision increases, but system complexity and implementation difficulty increase
Solution Approach 1:
The patent introduces test signals as intermediaries to facilitate detection. These standardized test signals serve as mediators between the transmission system and analysis system, enabling automated detection without requiring complex direct measurement mechanisms. The test signals carry information about line order that can be easily extracted through correlation analysis.
Solution Approach 2:
The system implements feedback mechanisms where received signals are compared against expected patterns, and detection results feed back into the system for verification and alert generation. This feedback loop ensures high detection precision through iterative verification while maintaining manageable system complexity through structured information flow.
Data Source
Figure 1A
Figure 1B
Figure 2A~2B
AI summary
A line order detection method applied to a multi-antenna network device includes: when a target antenna group is configured with a first downtilt angle, determining a first uplink received signal strength sequence of each antenna channel based on a first uplink reference signal sequence sent by a terminal; after an antenna downtilt angle of the target antenna group is adjusted to a second downtilt angle, determining a second uplink received signal strength sequence of each antenna channel based on a second uplink reference signal sequence sent by the terminal; determining a signal strength change amplitude based on the first uplink received signal strength sequence and the second uplink received signal strength sequence of each antenna channel; determining actual antenna numbers of the target antenna group based on N maximum values in all signal strength change amplitudes; and when there are different antenna numbers in the preset antenna numbers and the actual antenna numbers, determining that a line order is incorrect. This method can improve detection accuracy and detection efficiency. This application further provides a multi-antenna network device, to implement the foregoing line order detection method.