摘要
A method and an apparatus for decoding polar codes, the method comprising: determining a starting level for processing an overflow according to a number of encoded bits of a received polar encoded codeword, an input bit-width, and an internal bit-width of a decoder; multiplying an output Log-Likelihood Ratio (LLR) value and two input LLR values of the G function by a first coefficient and a second coefficient respectively; and finally, the LLR values corresponding to the received codeword are decoded to obtain decoded bits.