Smart Terminal Coupling Sensitivity Deviation Reduction
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Solution Overview
Problem
Coupling sensitivity deterioration in mobile terminals due to external interference sources, particularly signal scattering effects, leads to audio quality deterioration and dropped calls under weak signal conditions, which conventional solutions cannot fully address.
Innovation Solution
A method and terminal for reducing coupling sensitivity deviations by determining whether the cause of sensitivity deviation includes signal scattering or radiation effects, and producing a smart terminal with specific design modifications, such as coating flexible circuit boards with electromagnetic shielding films and grounding motors, to mitigate these effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional solutions (grounding, shielding films, cable wrapping) are applied to reduce coupling sensitivity deterioration, then radiation-induced sensitivity deviations are reduced, but signal scattering effect-induced sensitivity deviations remain unaffected
Solution Approach 1:
The patent applies preliminary action by measuring and identifying sensitivity deviations in different channels before final terminal assembly, and by pre-determining which channels require sensitivity enhancement through comparison with reference channels. This allows the system to proactively compensate for both radiation and scattering effects rather than relying solely on post-assembly conventional shielding methods.
Solution Approach 2:
The patent changes physical parameters of the antenna system by adjusting antenna element positions, orientations, or electrical characteristics (such as impedance matching) to optimize sensitivity across different channels. This parameter optimization addresses both radiation patterns and scattering effects by tailoring the antenna system's electromagnetic characteristics to minimize interference from multiple sources.
2Productivity
If channel quality feedback is used to refrain from assigning deteriorated channels to users, then overall system resource allocation is maintained, but individual user connection quality deteriorates under busy conditions
Solution Approach 1:
The patent performs preliminary sensitivity measurements and channel identifications during terminal manufacturing or initial setup, creating a database of channel-specific sensitivity characteristics for each terminal. This preliminary characterization allows the base station to proactively allocate users to channels with optimal sensitivity matches, rather than reactively managing allocations under busy conditions, thereby maintaining both system productivity and individual user reliability.
Solution Approach 2:
The patent implements feedback mechanisms where measured sensitivity deviations from actual terminal performance are fed back to the base station resource allocation system. This feedback loop enables dynamic channel assignment decisions that consider individual terminal characteristics, allowing the system to maintain high productivity while improving individual user connection quality through informed allocation decisions.
3Measurement precision
If sensitivity measurements are performed on each channel individually, then accurate sensitivity deviation detection is achieved, but testing time increases significantly
Solution Approach 1:
The patent merges the measurement process by using a reference channel to indirectly characterize sensitivity deviations in other channels. Instead of performing independent absolute measurements on each channel, the system combines the reference channel measurement with relative comparison measurements, reducing the total number of independent measurement operations while maintaining detection accuracy through differential measurement techniques.
Solution Approach 2:
The patent introduces a reference channel as an intermediary element that mediates the sensitivity measurement process. By measuring deviations relative to this reference channel, the system avoids the need for time-consuming absolute sensitivity measurements on each channel individually. The reference channel serves as a common reference point that enables efficient relative measurements across multiple channels, maintaining precision while reducing testing time.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed solution effectively reduces coupling sensitivity deterioration caused by signal scattering effects, improving the overall performance of mobile terminals by optimizing channel sensitivity and reducing interference.
Implementation Method 1
coating the flexible circuit board with an electromagnetic shielding film
Implementation Method 2
grounding the motor at the interference path
Data Source
Figure 1~2
Figure 3~4
AI summary
A method and terminal for reducing coupling sensitivity deviations, and an apparatus having a storage function are provided. Sensitivities of different channels are collected to obtain sensitivity deviations between adjacent channels when a sample smart terminal is at a first predetermined position. It is determined whether one of the sensitivity deviations is greater than a predetermined deviation threshold. If one of the sensitivity deviations is greater than the predetermined deviation threshold, it is determined whether a cause of the sensitivity deviation comprises a signal scattering effect and/or a signal radiation effect. A smart terminal is then produced according to determination of the cause.