Wireless Data Block Segmentation With CRC-Aware Code Sizing
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Solution Overview
Problem
Existing data transmission methods in wireless access systems are inefficient in error detection and correction, as they do not accurately consider the size of error detection codes when segmenting data blocks, leading to delayed error detection and complex restoration processes.
Innovation Solution
A method for segmenting data blocks in wireless access systems that takes into account the size of error detection codes, calculating the number of code blocks, and allocating data efficiently, allowing for rapid error detection and correction by attaching error detection codes to each code block.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If data blocks are segmented without considering error detection code size, then segmentation is simple, but error detection is delayed and restoration becomes complex
Solution Approach 1:
The patent divides a transport block into multiple code blocks, with each code block independently processed and equipped with its own CRC code. This segmentation allows parallel error detection across multiple smaller units rather than waiting for complete data restoration, thereby improving error detection efficiency while maintaining operational simplicity through standardized segmentation procedures
Solution Approach 2:
The patent attaches CRC error detection codes to each code block before transmission. This preliminary action enables the receiving end to perform error detection on individual code blocks as they are received, rather than waiting for complete data restoration, thus improving error detection timing and efficiency
2Measurement precision
If error detection codes are attached to each code block, then error detection accuracy improves, but data processing overhead increases
Solution Approach 1:
By segmenting data into smaller code blocks with individual CRC codes, the patent improves error detection accuracy for each block. The standardized segmentation process and efficient CRC calculation methods minimize the additional processing overhead, making the improved accuracy worthwhile
Solution Approach 2:
The patent optimizes CRC code parameters (such as polynomial selection and code length) to achieve high error detection accuracy with minimal overhead. By carefully selecting CRC parameters that provide sufficient error detection capability without excessive redundancy, the system balances accuracy improvement against processing overhead
3Quantity of substance
If code block size is increased to reduce number of blocks, then transmission overhead decreases, but error detection and restoration complexity increases
Solution Approach 1:
The patent segments data into multiple manageable code blocks rather than using fewer larger blocks. This segmentation reduces restoration complexity because errors in one code block do not affect others, and each block can be independently processed and restored using standardized procedures
Solution Approach 2:
The patent introduces CRC codes as intermediary elements that facilitate error detection and restoration. These intermediary error detection codes enable the system to identify and handle errors efficiently, reducing the overall complexity of the restoration process by providing clear error indicators and structured restoration pathways
Data Source
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AI summary
A method of transmitting data in a wireless access system is disclosed. The method includes various processes of obtaining the number of code blocks in consideration of an error detection code which is to be attached to each code block, calculating the size of the code blocks, segmenting input data, and channel-coding the code blocks, thereby efficiently transmitting data.