Preliminary Syndrome Routing for Multi-Decoder Latency Reduction
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Solution Overview
Problem
Current decoding techniques in electronic systems often incur unnecessary latency and inefficiency due to the use of multiple decoders tailored for different goals, leading to suboptimal routing of codewords and increased power consumption.
Innovation Solution
Implementing a preliminary syndrome calculation circuitry that performs a simplified syndrome calculation on a portion of the codeword to determine the appropriate decoder for routing, thereby reducing power consumption and latency by avoiding unnecessary decoding attempts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple decoders are used for different decoding goals, then decoding reliability is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent segments the decoding system into two distinct decoders: a first decoder optimized for low-latency applications and a second decoder optimized for high-reliability applications. This segmentation allows each decoder to be specialized for its specific goal, improving overall system reliability while maintaining manageable complexity through functional division.
Solution Approach 2:
The patent implements dynamic routing that adaptively selects which decoder to use based on the characteristics of the incoming codeword and current system state. This dynamic approach allows the system to switch between decoders optimally, achieving high reliability when needed while maintaining low complexity by not always activating all decoders.
2Reliability
If multiple decoders are used for different decoding goals, then decoding reliability is improved, but power consumption increases
Solution Approach 1:
The patent employs dynamic routing that selectively activates only the necessary decoder based on codeword characteristics and system state. This dynamic power management ensures that the high-power second decoder is activated only when high reliability is needed, while the low-power first decoder handles routine operations, thereby improving reliability only when necessary while minimizing overall power consumption.
Solution Approach 2:
The system changes operational parameters by switching between different decoding modes and configurations based on input characteristics. This allows the system to adjust its power consumption profile dynamically, using minimal power for standard operations and allocating additional power to the second decoder only when reliability requirements demand it.
3Productivity
If simplified syndrome calculation is performed on a portion of the codeword, then routing efficiency is improved, but measurement precision deteriorates
Solution Approach 1:
The patent segments the syndrome calculation process into a preliminary simplified calculation performed on a portion of the codeword for rapid routing decisions, followed by a complete syndrome calculation performed by the selected decoder for accurate error correction. This segmentation enables efficient routing while maintaining final decoding accuracy.
Solution Approach 2:
The patent performs a preliminary simplified syndrome calculation on a subset of the codeword before full decoding to quickly determine which decoder should be used. This preliminary action enables rapid routing decisions without compromising the accuracy of the final decoding process, as the complete syndrome calculation is still performed by the selected decoder.
Data Source
AI summary
One or more syndromes can be preliminarily calculated utilizing at least a portion of a codeword and a portion of parity-check matrix can be calculated. The preliminarily calculated syndromes can be utilized to determine where to route the codeword among multiple decoders tailored to various and/or different goals, such as efficiency characteristics, reliability characteristics, etc. of decoding schemes.