18155645. TRANSMITTER AND METHOD FOR GENERATING ADDITIONAL PARITY THEREOF simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)
TRANSMITTER AND METHOD FOR GENERATING ADDITIONAL PARITY THEREOF
Organization Name
Inventor(s)
Hong-sil Jeong of Suwon-si (KR)
TRANSMITTER AND METHOD FOR GENERATING ADDITIONAL PARITY THEREOF - A simplified explanation of the abstract
This abstract first appeared for US patent application 18155645 titled 'TRANSMITTER AND METHOD FOR GENERATING ADDITIONAL PARITY THEREOF
Simplified Explanation
The abstract describes a transmitter that includes various components to encode and transmit data using Low Density Parity Check (LDPC) codes. The transmitter performs group-wise interleaving of parity bits, punctures some of the parity bits, and generates additional parity bits based on specific patterns.
- The transmitter includes a Low Density Parity Check (LDPC) encoder to encode input bits and generate an LDPC codeword.
- A parity permutator is used to perform group-wise interleaving of the parity bits based on a specific pattern.
- Some of the parity bits are punctured, meaning they are intentionally removed from the codeword.
- An additional parity generator selects certain punctured parity bits and generates additional parity bits to be transmitted in a previous frame.
- The selection of punctured parity bits and generation of additional parity bits is based on specific patterns.
Potential Applications
- This technology can be used in wireless communication systems, such as cellular networks, to improve the reliability and efficiency of data transmission.
- It can also be applied in satellite communication systems to enhance the quality and robustness of data transmission.
Problems Solved
- LDPC codes are known for their error correction capabilities, but they require efficient encoding and transmission techniques.
- The transmitter described in the patent application solves the problem of efficiently encoding and transmitting LDPC codewords by performing group-wise interleaving, puncturing, and generating additional parity bits.
Benefits
- The use of LDPC codes and the described transmitter can significantly improve the reliability and accuracy of data transmission.
- By puncturing and generating additional parity bits, the transmitter can enhance the error correction capabilities of LDPC codes.
- The group-wise interleaving pattern allows for efficient transmission and decoding of the LDPC codewords.
Original Abstract Submitted
A transmitter is provided. The transmitter includes: a Low Density Parity Check (LDPC) encoder configured to encode input bits to generate an LDPC codeword including the input bits and parity bits to be transmitted in a current frame; a parity permutator configured to perform by group-wise interleaving a plurality of bit groups configuring the parity bits based on a group-wise interleaving pattern comprising a first pattern and a second pattern; a puncturer configured to puncture some of the parity-permutated parity bits; and an additional parity generator configured to select at least some of the punctured parity bits to generate additional parity bits to be transmitted in a previous frame of the current frame, based on the first pattern and the second pattern.
