Signal Processing Device Frequency Band Adjustment
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Solution Overview
Problem
Current wireless communication systems require a large number of radio-frequency link components to handle high-frequency and large-bandwidth signals, leading to increased system size and complexity, especially with the transition to next-generation 5G systems which operate across a wide frequency range.
Innovation Solution
A signal processing apparatus that adjusts and processes signals in a lowest common frequency band, using techniques such as down-conversion and analog-to-digital conversion, to reduce the number of required radio-frequency link components, thereby minimizing system size and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate antennas and radio-frequency links are used for multiple frequency bands, then data transmission capability is improved, but system size and complexity increase
Solution Approach 1:
The patent merges multiple frequency band processing functions into a single antenna and radio-frequency link system. The base station equipment integrates receivers and transmitters that can simultaneously handle multiple frequency bands (first frequency band and second frequency band) through a shared antenna interface, eliminating the need for separate antennas and radio-frequency links for each frequency band.
Solution Approach 2:
The antenna and radio-frequency link are designed with universal functionality to operate across multiple frequency bands. The receiver and transmitter components are configured to process signals in different frequency bands through frequency conversion means, allowing a single system to perform multiple frequency-specific functions without requiring dedicated hardware for each band.
2Productivity
If more radio-frequency link components are added to support high-frequency large-bandwidth transmission, then communication capacity is improved, but link size increases
Solution Approach 1:
The patent segments the signal processing function into frequency conversion stages. The receiver divides incoming signals into different frequency bands and converts them to baseband or intermediate frequencies, allowing parallel processing of multiple bands through a single radio-frequency link. This segmentation enables high communication capacity without proportionally increasing link size.
Solution Approach 2:
The system uses frequency conversion means to change the frequency parameter of signals dynamically. By converting high-frequency signals to lower intermediate or baseband frequencies, the radio-frequency link can handle high-frequency large-bandwidth transmissions using components designed for lower frequencies, thereby maintaining compact link size while supporting high communication capacity.
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 allows for efficient data transmission in high-frequency large-bandwidth communications systems with a reduced number of radio-frequency link components, enhancing system compactness and reducing power consumption without the need for high-voltage power sources.
Implementation Method 1
a frequency band adjustment unit, configured to adjust a frequency band of the analog signal to a lowest frequency band
Data Source
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AI summary
The present invention discloses a signal processing apparatus, including: a receiving unit, configured to receive an analog signal; a frequency band adjustment unit, configured to adjust the analog signal to a lowest frequency band when a frequency band of the analog signal received by the receiving unit falls outside the lowest frequency band in multiple preconfigured frequency bands; and a processing unit, configured to process, by using a signal processing channel in the lowest frequency band, the analog signal that has been adjusted to the lowest frequency band by the frequency band adjustment unit. The apparatus provided in the embodiments of the present invention processes signals of different frequency bands by using a processing channel in a lowest frequency band. In this way, only a relatively small quantity of radio-frequency link components are required to implement processing of the signals of the different frequency bands, which reduces a link size of a communications system.