L1 Post Signaling Segmentation for LDPC Decoding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional broadcasting/communication systems face challenges in efficiently encoding and decoding control information, particularly L1-post signaling information, which affects the overall performance of data transmission and reception.
Innovation Solution
The method involves segmenting control information into coded blocks, determining the number of bits and encoder input information bits, and strategically arranging L1 configurable and dynamic information within these blocks to improve decoding performance, using techniques such as LDPC encoding and segmentation to enhance transmission and reception efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control information is transmitted using conventional encoding methods, then the transmission process is simple, but the decoding performance of control information is insufficient
Solution Approach 1:
The control information is segmented into multiple coded blocks before encoding. Each coded block is then encoded separately using LDPC encoding. This segmentation allows the receiver to decode each block independently and improve overall decoding performance through iterative decoding processes.
Solution Approach 2:
The patent applies preliminary actions by first segmenting the control information into coded blocks and performing LDPC encoding before transmission. Additionally, CRC encoding is applied to each coded block to provide error detection capability in advance, enabling the receiver to identify and handle decoding errors more effectively.
2Reliability
If control information is encoded without segmentation, then the encoding process is simpler, but the error correction capability is reduced
Solution Approach 1:
Control information is divided into multiple coded blocks, each of which is then encoded separately. This segmentation enables independent error correction for each block, improving overall error correction capability while allowing the system to handle large amounts of control information effectively.
Solution Approach 2:
The patent changes the encoding parameters by applying different encoding schemes (LDPC encoding with specific code rates) to different coded blocks. This allows optimization of error correction capability for each block based on its specific characteristics and importance.
3Productivity
If L1-post signaling information is not strategically arranged, then the transmission structure is simpler, but the synchronization and decoding efficiency are lower
Solution Approach 1:
The patent applies local quality by strategically arranging different types of L1-post signaling information (configurable information and dynamic information) in specific positions within the coded blocks. This arrangement optimizes decoding efficiency by placing information that requires faster decoding in positions that benefit from the LDPC decoding process characteristics.
Data Source
AI summary
A method and an apparatus for encoding, transmitting, and receiving signaling information in a broadcasting/communication system are provided. The method includes generating the signaling information which comprises a plurality of pieces; determining a number of coded blocks to which the signaling information is to be encoded, based on a number of bits of the signaling information and a number of encoder input information bit; segmenting each piece of the signaling information based on the number of the coded blocks; constructing input information bits of each coded block to include segmented parts of each piece of the signaling information; encoding the input information bits to each coded block; and transmitting each coded block.