Multi-band Data Transmission via Synchronized Digital Processing
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Solution Overview
Problem
Existing communication systems face challenges in increasing bandwidth due to frequency variability in communication channels, leading to high costs from the need for multiple filters and complex analog front-end designs, especially in noisy environments like power networks.
Innovation Solution
The system synchronizes multiple frequency bands for simultaneous transmission and reception, reducing the dynamic range and complexity of analog filters, and allowing for optimized analog front-end design, while avoiding noisy frequency ranges and adapting to varying power spectral density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple frequency bands are used to increase transmission capacity, then the system bandwidth increases, but the device complexity increases due to the need for multiple filters and separate transmission/reception chains
Solution Approach 1:
The patent merges multiple frequency band transmissions into a single synchronized transmission channel. By synchronizing the transmission and reception of multiple bands through a common digital processing chain, the system eliminates the need for separate analog front-ends and duplicate transmission/reception chains for each band, thereby reducing device complexity while maintaining increased transmission capacity
Solution Approach 2:
The patent implements a universal digital processing chain that handles multiple frequency bands simultaneously. The same digital transmitter and receiver components process signals across different bands through time-division multiplexing and synchronization, making the system multi-functional without requiring separate dedicated chains for each band, thus reducing overall device complexity
2Productivity
If multiple frequency bands are used to increase transmission capacity, then the system bandwidth increases, but the manufacturing cost increases due to the need for multiple analog filters
Solution Approach 1:
The patent combines multiple band handling functions into a single synchronized transmission channel with shared digital processing components. This merging eliminates the need for multiple expensive analog filters and separate analog front-ends, significantly reducing manufacturing costs while maintaining the ability to transmit across multiple frequency bands simultaneously
3Ease of manufacture
If digital filter banks are used for band separation, then the manufacturing cost is reduced, but the device complexity increases due to complex digital processing requirements
Solution Approach 1:
The patent employs periodic time-division multiplexing where different frequency bands are transmitted in synchronized time slots. This periodic structure allows simple digital switching and processing instead of complex continuous digital filter banks, reducing both manufacturing cost and device complexity by using time-sequential processing rather than simultaneous complex filtering
4Ease of manufacture
If synchronized band transmission is implemented, then the manufacturing cost is reduced, but the device complexity increases due to synchronization requirements
Solution Approach 1:
The patent implements synchronization through feedback mechanisms where the system monitors and adjusts the timing and frequency of transmitted bands to maintain coherent synchronization. This feedback control enables cost-effective implementation by using software-based timing adjustment rather than complex hardware synchronization circuits, ultimately reducing manufacturing cost while managing device complexity
Data Source
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AI summary
The invention relates to a multi-band data transmission method which can be used to transmit data with the simultaneous use of more than one transmission band (9a, 9b) (where a band is a continuous range of frequencies) in order to increase the bandwidth that can be used in the transmission system and, consequently, the overall transmission capacity thereof. The method enables the use of said bandwidth without increasing the difficulty associated with digital implementation, simplifying the specifications of the analog filters (7) for the separation of the different bands (9a, 9b)