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|1. (WO2018196786) RATE MATCHING METHOD AND APPARATUS FOR POLAR CODES|
|Applicants:||HUAWEI TECHNOLOGIES CO., LTD.
|Title:||RATE MATCHING METHOD AND APPARATUS FOR POLAR CODES|
The present application provides a rate matching method and apparatus for polar codes. The method comprises: a communication device obtains information to be encoded or information to be decoded; the communication device determines code rate R; the communication device determines a rate matching mode to be used according to the code rate and a code rate threshold as well as information bit number and an information bit number threshold, or the communication device determines the rate matching mode to be used according to the the code rate and the code rate threshold as well as a target code length and a target code length threshold, or the communication device determines the rate matching mode to be used according to the code rate and two code rate thresholds, the rate matching mode being a punching mode or a shortening mode; and the communication performs Polar code rate matching on the information to be encoded according to the determined rate matching mode, or performs Polar code rate de-matching on the information to be decoded. Therefore, the punching/shortening mode can be flexibly selected so that different encoding parameters have better performance to overcome performance loss caused in the punching/shortening process.