Transport Block Size Calculation for Code Rate Adaptation
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Solution Overview
Problem
In wireless communication systems, determining an optimal transport block size (TBS) is challenging due to variations in code rates and noise levels, which affects data transmission efficiency and reliability, especially in high-data-throughput applications like 5G networks and IoT environments.
Innovation Solution
A method and apparatus for determining TBS by a terminal and base station using control information, where the TBS is identified based on the number of temporary information bits and code rate, ensuring it is a multiple of both 8 and the number of temporary code blocks, with specific formulas applied depending on the code rate and bit count to minimize unnecessary bit addition and optimize resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional TBS determination methods are used, then data transmission can be performed, but unnecessary bits are added and resource allocation is inefficient
Solution Approach 1:
The patent changes the parameter of TBS calculation by introducing a new formula that uses the number of temporary information bits and code rate as key variables. This parameter change allows for more precise TBS determination that adapts to different channel conditions and code rates, thereby reducing unnecessary bit addition while maintaining transmission efficiency
Solution Approach 2:
The patent implements dynamic TBS adjustment based on varying code rates and noise levels. The TBS is not fixed but dynamically determined according to the specific transmission conditions, allowing the system to optimize resource allocation in real-time and minimize waste of transmission resources
2Productivity
If TBS is optimized for high data throughput, then transmission efficiency improves, but transmission reliability deteriorates due to channel noise and fading
Solution Approach 1:
The patent applies partial action by calculating TBS based on the actual number of temporary information bits required rather than allocating maximum resources. This partial allocation approach maintains high data throughput for the necessary information while reducing the impact of channel noise and fading on overall transmission reliability
Solution Approach 2:
The patent performs preliminary determination of the number of temporary information bits before final TBS calculation. This preliminary action allows the system to assess the actual information requirements and allocate resources accordingly, balancing throughput and reliability by avoiding excessive resource allocation that would be more susceptible to channel impairments
3Adaptability or versatility
If code rate variations are accommodated, then adaptability improves, but TBS determination complexity increases
Solution Approach 1:
The patent uses parameter changes to simplify the determination process by expressing TBS as a function of code rate and number of temporary information bits. This parametric approach allows the system to adapt to different code rates through a unified formula rather than requiring complex lookup tables or multiple calculation methods for different code rate scenarios
Data Source
AI summary
The present disclosure relates to a communication technique that combines, with IoT technology, 5G communication system for supporting a higher data transfer rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security and safety related services, etc. on the basis of 5G communication technologies and IoT related technologies. Disclosed, in the present invention, are a method and an apparatus for determining the size of a transport block in a communication or broadcasting system.