Terminal Signal Drive Regulation for Communication Interference
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Solution Overview
Problem
Mobile devices experience issues such as call interruptions, freezing screens, and blurry displays due to signal interference between communication and functional modules, leading to poor user experience.
Innovation Solution
A signal processing method that regulates the drive voltage or drive current of signal lines in terminal devices based on communication states to reduce interference and enhance immunity, using methods like down-regulating or up-regulating drive parameters when specific frequency ranges or electromagnetic wave amplitudes are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive voltage or drive current of functional modules is increased to improve signal transmission quality, then the interference immunity of functional modules is improved, but the interference generated to communication modules increases
Solution Approach 1:
The patent applies dynamics by making the drive voltage or drive current of functional modules adjustable rather than fixed. The terminal device dynamically changes the drive parameters based on the communication state, switching between different voltage/current levels to balance interference immunity and interference generation in different operating conditions
Solution Approach 2:
The patent changes the electrical parameters (drive voltage or drive current) of functional modules based on communication state. By monitoring communication quality and adjusting the drive parameters accordingly, the system optimizes the balance between maintaining functional module performance and reducing interference to communication modules
2Object-generated harmful factors
If the drive voltage or drive current of functional modules is decreased to reduce interference to communication modules, then the interference to communication modules is reduced, but the interference immunity of functional modules deteriorates
Solution Approach 1:
The system dynamically adjusts drive parameters based on real-time communication state monitoring. When communication quality is good, the system reduces drive voltage/current to minimize interference. When communication quality deteriorates, the system increases drive parameters to maintain functional module performance, creating a dynamic balance between the two objectives
Solution Approach 2:
The patent implements feedback control by monitoring the communication state and using this information to adjust the drive parameters of functional modules. The system continuously monitors communication quality and adjusts drive voltage or current accordingly, creating a closed-loop control system that balances interference reduction with maintaining functional performance
3Adaptability or versatility
If the drive parameters of functional modules are adjusted frequently to adapt to changing communication states, then the adaptability to communication conditions is improved, but the system complexity increases
Solution Approach 1:
The patent applies universality by using a single control mechanism that serves multiple functions: monitoring communication state, determining adjustment needs, and controlling drive parameter changes. This multi-functional approach reduces the need for separate specialized components for each function, thereby reducing overall system complexity while maintaining high adaptability
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
This approach effectively reduces interference, optimizes receiving sensitivity, and improves user experience by minimizing call interruptions and display issues in mobile devices.
Implementation Method 1
when a voltage amplitude of an electromagnetic wave component that is of an electromagnetic wave radiated by a communication module working in a working frequency range and at a transmit parameter and that is coupled to a signal line corresponding to the functional module is greater than a threshold
Data Source
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Figure 2a~2c
Figure 3a~3b
AI summary
Embodiments of this application provide a signal processing method for regulating interference and interference immunity in a terminal device and a related apparatus. The signal processing method includes: obtaining, by a terminal device, a state factor used for reflecting a communication state of a communication module and a usage state of a functional module. The state factor includes a communication parameter of the communication module and a source drive voltage or source drive current of a signal line corresponding to the functional module. The terminal device down-regulates the source drive voltage or the source drive current when a frequency division frequency or frequency multiplication frequency of a signal transmitted on the signal line falls within a working frequency range, to reduce interference of the functional module to the communication module. The terminal device up-regulates the source drive voltage or source drive current when a voltage amplitude of an electromagnetic wave component that is of an electromagnetic wave radiated by the communication module and that is coupled to the signal line is greater than a threshold, to increase interference immunity of the functional module against the communication module. In this way, the drive voltage or drive current of the signal line is regulated according to the communication state, to regulate interference and interference immunity, to alleviate phenomena such as call interruption and blurry screens, thereby optimizing user experience.