Transport Block Decoding Using Prior Header Information
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Solution Overview
Problem
Current communication systems experience high error rates and low decoding accuracy when feedback information is encoded into transport blocks due to the combination of header information from various protocol layers, which are decoded based solely on demodulation soft values.
Innovation Solution
A decoding method that extracts and assembles prior information from successfully decoded transport blocks to improve decoding accuracy by using both prior information and demodulation information for decoding subsequent transport blocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If header information from multiple protocol layers is combined and decoded based solely on demodulation soft values, then the decoding process can be simplified, but the error rate increases and decoding accuracy decreases
Solution Approach 1:
The patent extracts and stores header information from successfully decoded transport blocks as prior information before decoding new blocks. This preliminary preparation of reference data enables improved decoding accuracy without significantly increasing process complexity, as the prior information is reused across multiple decoding operations
Solution Approach 2:
The patent implements a feedback mechanism where decoded header information from previously successful transport blocks is fed back as prior information to assist in decoding subsequent blocks. This feedback loop continuously improves decoding accuracy by leveraging historical successful decoding patterns while maintaining a manageable process complexity
2Measurement precision
If prior information from successfully decoded blocks is extracted and assembled into a prior information set, then decoding accuracy improves, but the information processing complexity increases
Solution Approach 1:
The patent extracts only the essential header information from successfully decoded transport blocks and stores it as prior information. This selective extraction approach improves decoding accuracy by providing relevant reference data while avoiding the complexity of processing entire transport blocks, thus balancing accuracy improvement with manageable information processing complexity
Solution Approach 2:
The patent applies different processing strategies to different parts of the transport block structure. Header information that benefits from prior information is processed with enhanced accuracy using extracted reference data, while other parts maintain standard processing. This localized quality enhancement improves overall decoding accuracy without uniformly increasing processing complexity across the entire data structure
Data Source
AI summary
This disclosure provides a decoding method and apparatus in the communications field. The method includes: extracting at least one piece of prior information from at least one first transport block that has been successfully decoded, and assembling the at least one piece of prior information into a prior information set, where one piece of prior information includes header information of a transmission protocol layer of one first transport block; when a to-be-decoded second transport block sent by a transmit end is received, selecting first prior information from the prior information set, where the second transport block is a transport block obtained by the transmit end by coding a third transport block; and decoding the second transport block based on the first prior information and first demodulation information of the second transport block, to obtain the third transport block.