Turbo Equalization Execution Control for Repetition Decisions
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Solution Overview
Problem
The turbo equalization scheme in radio communication systems experiences increased time and power consumption due to repeated signal detection processes, which can lead to deteriorating signal detection accuracy.
Innovation Solution
An execution decision apparatus that determines whether to execute a detection process in the turbo equalization apparatus based on the I/O characteristics of the equalization and decoding units, deciding not to perform the process when a stack is likely to occur, thereby reducing the number of repetition cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the detection process is repeated multiple times in the turbo equalization apparatus, then the signal detection accuracy is improved, but the time and power consumption increase
Solution Approach 1:
The invention performs preliminary evaluation of I/O characteristics before executing the detection process. By calculating and comparing the I/O characteristics of the equalization unit and decoding unit in advance, the system determines whether repeating the detection process will be effective, thereby avoiding unnecessary time consumption from redundant repetitions
Solution Approach 2:
The invention uses feedback from I/O characteristic evaluation to control the detection process. The system continuously monitors the I/O characteristics and uses this feedback information to decide whether to continue or stop the repetition, creating a closed-loop control mechanism that optimizes both accuracy and time efficiency
2Measurement precision
If the detection process is repeated multiple times in the turbo equalization apparatus, then the signal detection accuracy is improved, but the power consumption increases
Solution Approach 1:
The system performs preliminary evaluation of I/O characteristics to determine the optimal number of repetitions before actually executing the detection process. This preliminary analysis prevents unnecessary power consumption from redundant repetitions while ensuring sufficient accuracy is achieved
Solution Approach 2:
The I/O characteristic evaluation provides feedback that controls power consumption by determining when to stop the detection process. The system uses this feedback mechanism to balance accuracy requirements with power consumption constraints, stopping repetitions when further iterations would yield diminishing returns
3Measurement precision
If the I/O characteristics are evaluated to prevent stack occurrence, then the signal detection accuracy is maintained, but the device complexity increases
Solution Approach 1:
The invention introduces an intermediary evaluation mechanism that assesses I/O characteristics to predict stack occurrence. This intermediary layer acts as a mediator between the equalization and decoding units, providing guidance on whether to continue repetitions without requiring complex structural modifications to the core turbo equalization apparatus
Data Source
AI summary
An execution decision apparatus decides whether to execute a detection process for a turbo equalization apparatus which detects data before coding, by repeating processes performed on transmission data coded by error correction coding, by an equalization unit for compensating distortion by a propagation path and a decoding unit for performing an error correction process, and includes an equalization unit I/O characteristic acquisition unit which acquires an I/O characteristic of the equalization unit; a decoding unit I/O characteristic acquisition unit which acquires an I/O characteristic of the decoding unit; and a decision unit which decides whether to execute the detection process in the turbo equalization apparatus based on the I/O characteristic acquired for each of the equalization unit and the decoding unit.