Slater Matsil, LLP
Method and apparatus for encoding data using a polar code
Embodiment techniques map parity bits to sub-channels based on their row weights. The row weight for a sub-channel may be viewed as the number of “ones” in the corresponding row of the Kronecker matrix or as a power of 2 with the exponent (i.e. the hamming weight) being the number of “ones” in the binary representation of the sub-channel index (further described below). In one embodiment, candidate sub-channels that have certain row weight values are reserved for parity bit(s). Thereafter, K information bits may be mapped to the K most reliable remaining sub-channels, and a number of frozen bits (e.g. N−K) may be mapped to the least reliable remaining sub-channels. Parity bits may then mapped to the candidate sub-channels, and parity bit values are determined based on a function of the information bits.
Huawei Technologies Co., Ltd.
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Qifan Jiajie Jun Huazi Rong Jian Xiaocheng Wen Gongzheng Nan Yiqun
Zhang Tong Wang Zhang Li Wang Liu Tong Zhang Cheng Ge