Wireless Receiver Error Correction Ratio for Mixed Error Types
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Solution Overview
Problem
Existing wireless communication systems face challenges in effectively correcting various types of errors during data transmission, particularly due to the predominance of random errors in broadcast signals, which limits the efficacy of error correction mechanisms.
Innovation Solution
A wireless receiver and transmitter system that dynamically adjusts the amount of first and second error correction information based on the code error rate, prioritizing error correction codes with lower code error rates and adjusting the constituent ratio to optimize error correction capabilities, while maintaining the integrity of the encoded data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large amount of error correction information effective against random errors is included, then random error correction capability is improved, but error correction for other types of errors (such as burst errors) cannot be carried out properly
Solution Approach 1:
The error correction information is segmented into two distinct types: first error correction information (effective against random errors) and second error correction information (effective against burst errors and other error types). This segmentation allows the system to provide dedicated error correction capabilities for different error types rather than using a single type of error correction code for all errors.
Solution Approach 2:
The system dynamically changes the parameter of error correction information composition by adjusting the ratio between first and second error correction information based on the detected error type. When random errors are predominant, more first error correction information is used; when burst errors or other errors occur, the ratio is adjusted to include more second error correction information, thereby adapting the error correction capability to the actual error conditions.
2Device complexity
If the ratio of error correction information is fixed, then system complexity is reduced, but error correction performance varies suboptimally across different error conditions
Solution Approach 1:
The system employs feedback mechanisms where the receiver detects the type and characteristics of errors in received data and sends feedback information to the transmitter. Based on this feedback, the transmitter adjusts the ratio of first and second error correction information in subsequent transmissions. This feedback loop enables dynamic adaptation of error correction strategies without requiring complex manual configuration or prediction of error conditions.
Solution Approach 2:
The composition ratio of error correction information is made dynamic rather than fixed. The system can adjust the proportion of first and second error correction information in real-time based on detected error patterns. This dynamic adjustment allows the system to optimize error correction performance for different error conditions while maintaining a relatively simple overall structure by using established error correction codes with varying ratios.
Data Source
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AI summary
A wireless receiver includes a wireless communication component and a controller. The wireless communication component is configured to receive from a wireless transmitter a wireless signal that includes content data and encoded data having first error correction information and second error correction information of a different type from that of the first error correction information, for correcting errors in the content data. The controller is configured to determine which of the first error correction information and the second error correction information is to be given priority based on the signal quality of the wireless signal.