LOS Channel Coefficient Ordering for MIMO Antenna Connection Checks
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Solution Overview
Problem
In multi-input multi-output (MIMO) systems, incorrect connections between antennas and radio units due to human error lead to mismatches in channel coefficients, causing loss of air interface transmission performance, and existing methods for ensuring correct connections are inaccurate due to environmental factors affecting air interface channel measurements.
Innovation Solution
An antenna ordering determining method that utilizes channel coefficients of line-of-sight (LOS) channels to detect correct antenna connections by determining a target coefficient combination with improved accuracy, reducing the impact of environmental factors and enhancing detection precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If air interface channel measurement and feedback methods are used to determine antenna connection correctness, then the method can be implemented with existing systems, but measurement accuracy is poor due to environmental factors such as line-of-sight and non-line-of-sight types, interference from neighboring cells, and terminal angle direction
Solution Approach 1:
The patent introduces an intermediary measurement approach by using reference signals transmitted through the air interface channel as a mediator to indirectly determine antenna connection correctness. Instead of directly measuring physical connection status, the system measures the characteristics of reference signals (such as reference signal received power and signal quality) that are affected by the antenna connection state, thereby obtaining ordering information through this intermediary measurement channel
Solution Approach 2:
The patent replaces the traditional mechanical/physical connection verification method with an electromagnetic field-based measurement approach. Instead of physically checking antenna connections, the system uses electromagnetic reference signals to infer connection status through signal characteristic analysis, substituting physical measurement with electromagnetic field measurement
2Reliability
If manual connection verification is performed to ensure correct antenna ordering, then connection correctness can be verified, but labor costs increase and repeated manual adjustments are required
Solution Approach 1:
The patent implements self-service by enabling the communication system to automatically detect and report antenna ordering information through reference signal measurements. The system performs self-verification of connection correctness without requiring manual intervention, automatically generating ordering information that indicates whether antenna connections are correct or need adjustment
Solution Approach 2:
The patent establishes a feedback mechanism where the system continuously monitors reference signal characteristics and provides feedback information about antenna ordering status. This feedback loop allows the system to automatically detect connection issues and report them, eliminating the need for repeated manual verification and adjustment
Data Source
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AI summary
This application provides an antenna ordering determining method and a related apparatus, to improve accuracy of antenna ordering detection. The method includes: obtaining a plurality of channel coefficients, where the plurality of channel coefficients include N channel coefficients corresponding to a first terminal, the N channel coefficients include channel coefficients of LOS channels between one antenna of the first terminal and N antennas of a network device, and N is an integer greater than 1; determining a target coefficient combination in M coefficient combinations corresponding to the first terminal, where a utility value of the target coefficient combination is greater than a utility value of another coefficient combination in the M coefficient combinations, each coefficient combination includes the N channel coefficients, channel coefficients included in any two of the M coefficient combinations are arranged in different manners, M=N! or M=(N!)/(2k), N! represents a factorial of N, and M and k are positive integers; and determining, based on a sequence of channel coefficients in the target coefficient combination, whether an antenna ordering is correct.