Wireless Receiver with Decoupled Code Rates for Signal Recovery
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Solution Overview
Problem
Conventional wireless communication receivers face challenges in processing high code rate signals, requiring hardware and software elements to operate at higher speeds, which can strain existing processing resources and increase power consumption and bandwidth requirements.
Innovation Solution
A wireless receiver employing a variable-rate encoding and decoding scheme that decouples the encoding and decoding rates, using an orthogonal coding scheme to encode and decode analog signals, with a signal reconstruction module that segregates and re-encodes signals to accommodate different code rates, reducing hardware and software processing speeds and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high code rate encoding is used to spread data signals across wide bandwidth, then signal reliability and interference resistance are improved, but hardware and software processing speed requirements increase
Solution Approach 1:
The patent segments the high code rate signal processing into two distinct stages: a first encoder operating at a lower first code rate and a second encoder operating at the higher second code rate. This segmentation allows each encoder to operate at optimized speeds, with the first encoder handling bulk signal generation at lower speed and the second encoder refining the signal at higher speed only where necessary, thereby reducing overall processing speed requirements while maintaining signal reliability
Solution Approach 2:
The patent introduces an intermediary signal processing stage between the first and second encoders, where the output of the first encoder serves as input to the second encoder. This intermediary stage allows the system to transition from lower code rate to higher code rate processing, enabling the high reliability benefits of high code rate encoding without requiring the entire processing chain to operate at the high speed necessary for direct high code rate encoding
2Reliability
If high code rate encoding is used to spread data signals, then signal reliability is improved, but power consumption increases
Solution Approach 1:
The patent divides the encoding process into two segments with different code rates, allowing the system to achieve high signal reliability through the second encoder's high code rate operation while the first encoder operates at lower power consumption. This segmentation enables selective application of high-power high-reliability encoding only where most needed, rather than applying it uniformly across the entire signal processing chain
Solution Approach 2:
The patent changes the code rate parameter between two encoding stages, using a lower first code rate for initial signal generation and a higher second code rate for final signal refinement. This parameter change allows the system to optimize power consumption by not maintaining high code rate processing throughout the entire signal path, thereby reducing overall power consumption while still achieving the reliability benefits of high code rate encoding in the final output
3Reliability
If high code rate encoding is used to spread data signals, then signal reliability is improved, but bandwidth requirements increase
Solution Approach 1:
The patent segments the bandwidth utilization across two encoding stages, where the first encoder operates at a lower code rate requiring less bandwidth, and the second encoder operates at a higher code rate requiring more bandwidth only for the final signal refinement. This segmentation allows the system to achieve high signal reliability through high code rate processing while limiting the overall bandwidth requirement to only what is necessary for the final high-reliability output, rather than requiring high bandwidth throughout the entire processing chain
Data Source
AI summary
The disclosed apparatus, structures, and methods are directed to a wireless receiver. The configurations presented herein employ a structure operative to receive a plurality of analog signals, a signal encoder configured to encode the plurality of received analog signals into a single encoded analog composite signal based on a coding scheme operating under a first code rate, a signal reconstruction module configured to segregate and reconstruct the single encoded digital composite signal into a re-encoded digital composite signal in accordance with the coding scheme operating under a second code rate. In addition, a signal decoder configured to decode the digital composite signals based on the coding scheme operating under the second code rate, and to output digital signals, in which each digital signal in the plurality of digital signals corresponds to a respective analog signal of the plurality of received analog signals.