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|1. (WO2018045849) POLAR CODE RETRANSMISSION METHOD AND DEVICE|
|Applicants:||HUAWEI TECHNOLOGIES CO., LTD.
|Title:||POLAR CODE RETRANSMISSION METHOD AND DEVICE|
Provided in an embodiment of the present application are a Polar code retransmission method and device, which can reduce retransmission complexity and improve transmission performance. The method comprises: determining a first polar channel sequence consisting of N polar channels and a reliability of each polar channel in the N polar channels; according to a coding parameter of the mth data transmission, determining the number of information bits Km required by the mth data transmission, wherein the coding parameter comprises at least one of the number of information bits and a code rate; determining Km polar channels with the highest reliability in the first polar channel sequence; determining Km information bits according to positions of the information bits transmitted in the previous m-1 data transmissions, in the first polar channel sequence; and mapping the Km information bits onto the Km polar channels for transmission.