Nyquist Error Estimation for Power-Efficient Receiver Decoding
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Solution Overview
Problem
Conventional communication systems are inadequate in managing high bandwidth demands for multimedia files and require improved error correction mechanisms to enhance performance and reduce power consumption.
Innovation Solution
A communication system that includes an error correction module with a Nyquist error estimator and decoder, which uses syndrome values to correct errors in received signals, and a receiver device with an equalizer, detector, demapper, and selector to generate and select outputs based on error indicators, thereby activating error correction only when needed to save power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional error correction mechanisms are continuously activated to ensure reliable data transmission, then reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic error correction by using a syndrome calculator to continuously monitor received codewords and activate the error correction module only when syndromes indicate errors are present. This dynamic activation based on real-time channel conditions resolves the contradiction by maintaining reliability when needed while minimizing power consumption during error-free transmission periods
Solution Approach 2:
The system employs self-monitoring through syndrome calculation on received codewords, allowing the receiver to autonomously detect when error correction is necessary without external control signals. This self-service mechanism enables the system to automatically adjust its error correction activity based on actual channel conditions, balancing reliability and power consumption
2Reliability
If full error correction processing is applied to all received signals, then reliability is improved, but processing time increases
Solution Approach 1:
The patent segments the error correction process into two stages: a quick syndrome calculation stage that processes all received signals, and a full error correction stage that is applied only to signals with detected errors. This segmentation allows the system to maintain high reliability while minimizing average processing time by avoiding full correction processing on error-free signals
Solution Approach 2:
The system applies partial error correction action by using syndrome values as a filter to identify only those signals that require full correction processing. This partial action approach ensures that complete error correction is applied only when necessary, reducing overall processing time while maintaining reliability for error-affected signals
Data Source
AI summary
The present invention is directed to communication systems and methods. In a specific embodiment, the present invention provides a receiver that includes an error correction module. A syndrome value, calculated based on received signals, may be used to enable the error correction module. The error correction module includes an error generator, a Nyquist error estimator, and a decoder. The decoder uses error estimation generated by the Nyquist error estimator to correct the decoded data. There are other embodiments as well.