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公开(公告)号：US11133828B2
公开(公告)日：2021-09-28
申请号：US16459008
申请日：2019-07-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huazi Zhang , Jun Wang , Rong Li , Lingchen Huang , Jian Wang , Shengchen Dai , Jiajie Tong , Vladimir Gritsenko , Oleg Feat'evich Kurmaev , Aleksei Eduardovich Maevskii
Abstract: A method comprises: obtaining a coded bit sequence by performing PC-polar coding on information bits based on first constructor parameters; and sending the coded bit sequence. A check equation of the first constructor parameters includes a first element representing a check-required information bit position and a second element representing a check bit position, the first element corresponds to a first vector (V1) in a generator matrix for PC-polar codes, the second element corresponds to a second vector (V2) in the generator matrix, and if a first Hamming weight (HW1) of V1 is the same as a second Hamming weight (HW2) of V2, then a third Hamming weight (HW3) of an addition modulo 2 vector is greater than HW1 and greater than HW2, or if HW1 is different from HW2, then HW3 is greater than a smaller one of the HW1 and HW2.
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公开(公告)号：US11088708B2
公开(公告)日：2021-08-10
申请号：US16728594
申请日：2019-12-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lingchen Huang , Rong Li , Huazi Zhang , Chen Xu , Shengchen Dai , Gongzheng Zhang , Yunfei Qiao
Abstract: The present disclosure relates to polar code encoding methods and apparatus. One example method includes separately performing check encoding on the at least two to-be-checked first bit sequences to obtain at least two check bit sequences, where a union set of the at least two to-be-checked first bit sequences includes the K information bits, and K is a positive integer, interleaving the K information bits and the at least two check bit sequences, or interleaving a first part of information bit sequence and a first check bit sequence to obtain an interleaved third bit sequence, where a second check bit sequence, a third check bit sequence, and a second part of information bit sequence in a sequence of all information bits except the first part of information bit sequence form a second bit sequence, and performing polar encoding on the second bit sequence.
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公开(公告)号：US11076408B2
公开(公告)日：2021-07-27
申请号：US16579598
申请日：2019-09-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yourui Huangfu , Hejia Luo , Jian Wang , Huazi Zhang , Rong Li
Abstract: This application provides an information transmission method, a network device, and a terminal device. The method includes: generating, by a network device, downlink control information DCI; determining, by the network device, a corresponding processing manner based on a format of the DCI; performing, by the network device, processing in the processing manner in an encoding process of the DCI; and sending, by the network device, the processed DCI over a physical downlink control channel PDCCH. The information transmission method provided in this application can resolve a problem of a failure in blind detection on DCI caused by a nested encoding feature of polar encoding. When a terminal device cannot determine the format of the DCI sent by the network device, the network device may use a mapping relationship, and the network device processes DCI of a format in a processing manner.
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公开(公告)号：US11057052B2
公开(公告)日：2021-07-06
申请号：US16564774
申请日：2019-09-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng Zhang , Rong Li , Jun Wang , Ying Chen , Huazi Zhang
Abstract: A data processing method is disclosed, and the method includes: receiving, by an encoding end, a to-be-encoded data block; obtaining, by the encoding end, a first mother code element for each first indication element in a first indication sequence based on an association relationship in which S=Q+B*N0 when B>0, and S=Q when B=0; and placing the first mother code element at a location of the first indication element in the first indication sequence to obtain a first mother code sequence.
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公开(公告)号：US20210184696A1
公开(公告)日：2021-06-17
申请号：US17188588
申请日：2021-03-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jian Wang , Huazi Zhang , Rong Li
Abstract: A polar code encoding method and apparatus, the method including determining a sorted sequence to encode to-be-encoded bits, where the sorted sequence represents reliability sorting of N polar channels, where N is a mother code length of a polar code, where N is a positive integer, where N is a power of two, and where a minimum sequence number of polar channels in the sorted sequence is 1, obtaining encoded bits by the apparatus by performing polar code encoding on the to-be-encoded bits using the sorted sequence, and outputting, by the apparatus, the encoded bits.
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Patent Agency Ranking
公开(公告)号：US11025278B2
公开(公告)日：2021-06-01
申请号：US16519988
申请日：2019-07-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng Zhang , Huazi Zhang , Yunfei Qiao , Rong Li , Jun Wang , Guijie Wang
Abstract: The present disclosure relates to polar encoding methods and apparatus. One example method includes obtaining locations of information bits and frozen bits based on a reliability order of polar channels, where reliability of a polar channel corresponding to the information bits is higher than reliability of a polar channel corresponding to the frozen bits, performing cyclic redundancy check (CRC) encoding on an information block, mapping bits obtained after the CRC encoding to the information bits, determining at least one bit of the frozen bits as a check frozen bit, where a value of the check frozen bit is determined based on values of P information bits that are in information bits prior to the check frozen bit and that meet a preset condition, and performing polar encoding on the information bits, the check frozen bit, and a frozen bit other than the check frozen bit.
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公开(公告)号：US10965322B2
公开(公告)日：2021-03-30
申请号：US16689816
申请日：2019-11-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jian Wang , Huazi Zhang , Rong Li
Abstract: A polar code encoding method and apparatus are provided, to improve accuracy of reliability sorting of polar channels. The method is: determining a sorted sequence used to encode to-be-encoded bits, where the sorted sequence is used to represent reliability sorting of N polar channels, N is a mother code length of a polar code, and N is a positive integer power of 2; and performing polar code encoding on the to-be-encoded bits by using the sorted sequence, to obtain encoded bits.
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公开(公告)号：US10951356B2
公开(公告)日：2021-03-16
申请号：US16586385
申请日：2019-09-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen Dai , Huazi Zhang , Rong Li , Yunfei Qiao , Yue Zhou
Abstract: Embodiments of this application provide a method for processing information bits. A communication device obtains K information bits and a code length M. The code length M is a length of an output sequence resulting from processing the information bits. The communication device generates an N-bit bit sequence that includes the K information bits and one or more parity check bits, encodes the bit sequence using a polar encoding formula to obtain an N-bit encoded sequence, rate matches the encoded sequence to obtain the output sequence, modulates the rate matched sequence to obtain output sequence and outputs the output sequence. When M−K>192, in the bit sequence, one of the parity check bits is placed in a bit position that is determined according to reliabilities of the bit positions in the bit sequence for placing the K information bits and the one or more parity check bits.
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公开(公告)号：US10924210B2
公开(公告)日：2021-02-16
申请号：US16558285
申请日：2019-09-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Rong Li , Huazi Zhang , Hejia Luo , Gongzheng Zhang
Abstract: Embodiments provide a polar code encoding and decoding method in a communications system. Under the method, a basic quantized sequence can be obtained. The basic quantized sequence includes a quantized value used to represent reliability corresponding to a polarized subchannel. A target quantized sequence based on the basic quantized sequence can also be obtained. A relative magnitude relationship between elements in the target quantized sequence is nested with a relative magnitude relationship between elements in the basic quantized sequence. K largest quantized values in the target quantized sequence can be determined based on a non-fixed bit length K and polarized subchannels corresponding to the K largest quantized values can be used as a non-fixed bit position set. Polar code encoding or decoding can be performed based on the non-fixed bit position set.
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公开(公告)号：US20200295867A1
公开(公告)日：2020-09-17
申请号：US16892731
申请日：2020-06-04
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huazi Zhang , Jiajie Tong , Rong Li , Jun Wang , Wen Tong , Yiqun Ge , Xiaocheng Liu
Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. In one example, an embodiment technique includes polar encoding, with an encoder of the device, information bits and at least one parity bit using the polar code to obtain encoded data, and transmitting the encoded data to another device. The polar code comprises a plurality of sub-channels. The at least one parity bit being placed in at least one of the plurality of sub-channels. The at least one sub-channel is selected from the plurality of sub-channels based on a weight parameter.
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