Communication Terminal Measurement System Frequency Overlap Avoidance
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Solution Overview
Problem
During the transition from 4G to 5G, the overlapping frequency bands of 4G and 5G communication systems lead to interference issues, reducing frequency utilization efficiency, and existing communication terminal measurement systems struggle to test devices compatible with both standards without interference.
Innovation Solution
A communication terminal measurement system comprising a first mobile terminal measurement apparatus for 4G, a second for 5G, and a control apparatus that acquires and utilizes frequency band information to avoid overlapping regions, allowing for the transmission of test signals while preventing interference between the two standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequencies are distributed and operated during the period in which 4G and 5G coexist to avoid interference between systems, then interference between systems is avoided, but frequency utilization efficiency is lowered due to unequal distribution of users
Solution Approach 1:
The control apparatus dynamically adjusts frequency band allocation parameters based on user distribution conditions. When 4G and 5G frequency bands overlap, the system modifies the operating parameters of the first communication standard to avoid transmitting in the overlapping band, while the second communication standard can utilize the overlapping band, thereby preventing interference while optimizing frequency usage based on real-time conditions
Solution Approach 2:
The system implements dynamic frequency band management where the control apparatus continuously monitors user distribution and interference conditions, then adjusts which communication standard transmits in which frequency band. This dynamic allocation allows the system to transition between different frequency usage patterns to balance interference avoidance and frequency utilization efficiency
2Adaptability or versatility
If a communication terminal measurement system tests terminals compatible with both 4G and 5G standards, then multi-standard terminal testing capability is achieved, but interference between the two standards occurs when frequencies overlap
Solution Approach 1:
The control apparatus acts as an intermediary between the first and second mobile terminal measurement apparatus, coordinating their operations to prevent interference. It acquires frequency band information from both apparatus, identifies overlapping regions, and controls the first apparatus to avoid transmitting in the overlapping band while allowing the second apparatus to transmit, thereby enabling multi-standard testing without interference
Solution Approach 2:
Before conducting tests with both communication standards, the control apparatus preliminarily acquires frequency band information from both the first and second mobile terminal measurement apparatus, identifies potential overlapping regions, and pre-configures the first apparatus to avoid transmitting in overlapping bands. This preliminary frequency planning prevents interference before it occurs during actual testing
Data Source
AI summary
An object of the present invention is to provide a communication terminal measurement system capable of testing a mobile communication terminal compatible with a plurality of communication standards having overlapping frequency bands in a state where the frequency bands overlap. In the communication terminal measurement system according to the present invention, the control apparatus 31 acquires the second frequency band information from the second storage unit 21m of the second mobile terminal measurement apparatus 21, and inputs parameters for avoiding all or a part of the frequency band to the storage unit 20m of the first mobile terminal measurement apparatus 20, whereby avoiding the mobile communication terminal 11a from refusing to receive signals due to input of signals of both two communication standards.