Transport Block Size Quantization for NR Adaptability
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Solution Overview
Problem
The existing methods for determining transport block size in LTE are not adaptable to the flexible resource allocation in NR, leading to arbitrary byte quantities and performance issues in NR systems.
Innovation Solution
A method that determines an initial transport block size based on scheduling information, compares it with a threshold, and quantizes it using specific equations to ensure consistent block lengths, minimizing encoding and decoding complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a dynamic calculation method for TBS is used based on scheduling information, then flexibility in calculating TBS is improved, but the byte quantity becomes arbitrary and does not adapt to code block verification requirements
Solution Approach 1:
The patent introduces quantization parameters (set K, threshold Y) to transform the continuous TBS calculation into a discrete process. By changing the parameter representation from arbitrary byte values to quantized levels, the system maintains flexibility while ensuring precise byte quantities that meet code block verification requirements.
Solution Approach 2:
The patent implements a dynamic quantization process where the TBS is first calculated dynamically based on scheduling information, then quantized to the nearest valid code block length. This two-stage approach preserves the dynamic adaptability of resource allocation while ensuring the final TBS meets precision requirements for code block processing.
2Ease of operation
If TBS is determined using LTE look-up table method, then determination simplicity is improved, but adaptability to flexible NR resource allocation deteriorates
Solution Approach 1:
The patent segments the TBS determination process into distinct stages: initial TBS calculation based on scheduling information, comparison with threshold, quantization to valid code block lengths, and final determination. This segmentation replaces the monolithic LTE look-up table approach with a modular process that adapts to NR's flexible resource allocation while maintaining operational simplicity through structured steps.
Solution Approach 2:
The patent changes the fundamental parameter approach from fixed look-up table indices to dynamic parameters including scheduling information, threshold Y, and quantization sets. This parameter transformation enables the system to adapt to variable NR resource allocations while maintaining deterministic outcomes through the quantization process.
3Adaptability or versatility
If arbitrary byte quantity TBS is used, then resource allocation flexibility is improved, but encoding and decoding performance deteriorates
Solution Approach 1:
The patent transforms the TBS parameter from arbitrary byte values to quantized values that correspond to valid code block lengths. By changing the parameter domain to discrete, validated lengths, the system maintains resource allocation flexibility while ensuring that each TBS value guarantees reliable encoding and decoding performance.
Solution Approach 2:
The patent implements a feedback mechanism where the calculated TBS is compared against valid code block lengths (set K), and adjustments are made through quantization to ensure performance requirements are met. This feedback loop guarantees that resource allocation flexibility does not compromise transport block reliability.
Data Source
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AI summary
A method, an apparatus and an equipment for determining a transport block size are provided. The method for determining a transport block size includes: determining an initial transport block size; comparing the initial transport block size with a threshold to obtain a comparison result; quantizing the initial transport block size based on the comparison result to obtain a quantized initial transport block size; and determining a final transport block size based on the quantized initial transport block size.