Polar Code Repetition Coupling for Higher Channel Throughput
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Solution Overview
Problem
Existing polar code transmission methods for wireless communication, such as in 5G, result in decreased channel utilization due to repeated transmission of coded bits, necessitating improvements in channel throughput performance without altering decoding rates.
Innovation Solution
The method involves encoding m first codewords to obtain m second codewords by repetition, and coupling additional information with these second codewords to form m coupled codes, where each coupled code consists of a first part identical to the first codeword and a second part obtained through an exclusive OR operation with the additional information, enhancing channel throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coded bits are repeatedly transmitted to meet code length requirements, then code length requirement is satisfied, but channel utilization decreases
Solution Approach 1:
The patent merges the repeated transmission of coded bits with additional information (such as control information or data) by multiplexing them in the time-frequency resources. This allows the system to satisfy the code length requirement through repetition while simultaneously transmitting additional information, thereby improving channel utilization and resolving the contradiction between reliability and productivity.
2Reliability
If coded bits are repeatedly transmitted to ensure transmission effect, then transmission reliability is maintained, but channel throughput performance decreases
Solution Approach 1:
The patent makes the repeated transmission resources serve multiple functions: they not only maintain the polar code structure and transmission reliability but also carry additional information. By designing the repetition process to accommodate both the original coded bits and extra information, the system achieves multi-functionality that resolves the contradiction between maintaining transmission effect and improving channel throughput performance.
Data Source
AI summary
A method includes: respectively encoding m first codewords to obtain m second codewords, where the second codeword is obtained by repeating the first codeword, and m is a positive integer; separately coupling additional information with the m second codewords to obtain m coupled codes; and sending the m coupled codes. In this solution, the additional information is coupled with the m second codewords to obtain the m coupled codes, and the m coupled codes are transmitted. After the additional information in the m coupled codes is decoupled, transmission effect that is the same as or similar to that of merely transmitting the m second codewords may be obtained. In this way, more information can be sent additionally without changing a decoding rate of the second codeword, and channel throughput performance is improved.