ADC Peak-Based Gain Control for TDD Interference Handling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current gain control methods for wireless base stations struggle to effectively handle time division interference and are not universally applicable across different systems and specifications, leading to difficulties in determining optimal gain control thresholds and managing signal strength.
Innovation Solution
A signal gain control method that detects peaks of output signals in both rapid and slow attenuation peak search windows, compares them with pre-defined thresholds, and adjusts gain accordingly, allowing for flexible control strategies and pre-stored parameters tailored to specific systems, thereby enhancing anti-jamming capabilities and handling time division interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If average power is used as the basis for gain adjustment, then the gain control can be implemented, but it is difficult to determine the gain control threshold for TDD systems and cannot effectively handle time division interference
Solution Approach 1:
The patent changes the parameter basis from average power to peak power detection. By detecting peak values of sampled signals and comparing them with pre-set thresholds, the system can effectively determine gain control thresholds for TDD systems and handle time division interference, resolving the threshold determination difficulty while maintaining gain control effectiveness
Solution Approach 2:
The patent introduces dynamic peak detection mechanisms with different time constants (rapid control with 1ms, slow control with 100ms). This dynamic approach allows the system to adapt to changing signal conditions and interference patterns, enabling effective threshold determination and interference handling in TDD systems
2Speed
If rapid control method is used for gain adjustment, then the response speed is improved, but the complexity of determining appropriate thresholds increases
Solution Approach 1:
The patent segments the gain control process into two distinct parts: rapid control (1ms time constant) for quick response to signal changes, and slow control (100ms time constant) for stable threshold determination. This segmentation allows the system to achieve fast response while managing threshold complexity through dedicated slow control mechanisms
Solution Approach 2:
The patent introduces an intermediary slow control mechanism that operates with a longer time constant to determine stable thresholds. This intermediary layer provides reliable threshold values to the rapid control system, reducing the complexity of threshold determination while maintaining fast response capability
3Stability of the object's composition
If slow control method is used for gain adjustment, then the stability is improved, but the response time to signal changes increases
Solution Approach 1:
The patent segments the control system into slow control (100ms time constant) for stability and rapid control (1ms time constant) for fast response. The slow control provides stable threshold determination while the rapid control component eliminates response time delays by using these stable thresholds for quick gain adjustments
4Reliability
If gain control is optimized for a specific system or specification, then the performance is improved, but the universality decreases
Solution Approach 1:
The patent creates a universal gain control method that works across different wireless communication systems and specifications. By using peak power detection with configurable time constants and thresholds that can be adapted to different system requirements, the method achieves both optimized performance for specific systems and broad universality across multiple applications
Data Source
Figure 1~3
Figure 4~5
Figure 6
AI summary
The disclosure discloses a signal gain control method, which includes that: gain control parameters are determined; peaks of output signals of an Analogue to Digital Converter (ADC) are detected in a rapid attenuation peak search window and a slow control peak search window respectively; the detected peaks are compared with a threshold in the gain control parameters, and gain control is performed on the signals according to the comparison results. The disclosure also discloses a signal gain control device and a storage medium.