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公开(公告)号：US11374682B2
公开(公告)日：2022-06-28
申请号：US16693865
申请日：2019-11-25
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 allocating, from a set of sub-channels, one or more sub-channels for one or more parity bits based on row weights for sub-channels in a subset of sub-channels within the set of sub-channels, mapping information bits to remaining sub-channels in the set of sub-channels based on a reliability of the remaining sub-channels without mapping any of the information bits to the one or more sub-channels allocated for the one or more parity bits, polar encoding the information bits and the one or more parity bits based on at least the mapping of the information bits to the remaining sub-channels to obtain encoded bits, and transmitting the encoded bits to another device.
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公开(公告)号：US11362676B2
公开(公告)日：2022-06-14
申请号：US16505200
申请日：2019-07-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guijie Wang , Gongzheng Zhang , Yunfei Qiao , Jian Wang , Chaolong Zhang , Rong Li
Abstract: Embodiments of the application provides a method for encoding. The method includes: receiving a to-be-encoded data block; encoding the data block at an aggregation level of 2L, where a formula used during the encoding is as follows: [ u . 2 L u . L ] [ G LN 0 G LN G LN ] = ⌊ C . 2 L C . L ⌋ ( I ) u . L = { u L u L - 1 … u 1 } , u . 2 L = { u 2 L u 2 L - 1 … u L + 1 } , c . L = { c L c L - 1 … c 1 } , c . 2 L = { c 2 L c 2 L - 1 … c L + 1 } , G LN = G N ⊗ log 2 ( L ) ( II ) L=2n, and n is a natural number greater than or equal to 0; and outputting an encoded data block.
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公开(公告)号：US11303298B2
公开(公告)日：2022-04-12
申请号：US16914775
申请日：2020-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yue Zhou , Rong Li , Hejia Luo , Huazi Zhang , Ying Chen
Abstract: Embodiments of this application disclose encoding and decoding methods and apparatus related to the communications. One of the methods includes: obtaining, based on polar code rate matching, a subchannel corresponding to a punctured bit or a shortened bit; determine subchannels corresponding to an information bit and a check frozen bit that are different from the subchannel corresponding to the punctured bit or the shortened bit; determining that a subchannel corresponding to a frozen bit that is different from the subchannels corresponding to the information bit and the check frozen bit and the subchannel corresponding to the punctured bit or the shortened bit; performing, according to the subchannels corresponding to the information bit and the check frozen bit and the subchannel corresponding to the frozen bit, parity check encoding and polar encoding based on the information bit to obtain encoded information; and sending the encoded information.
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公开(公告)号：US11296724B2
公开(公告)日：2022-04-05
申请号：US16811934
申请日：2020-03-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shengchen Dai , Lingchen Huang , Gongzheng Zhang , Yunfei Qiao , Chen Xu , Jun Wang , Rong Li
Abstract: This application provides an encoding method and apparatus in a wireless communications system. The method includes: performing cyclic redundancy check (CRC) encoding on A to-be-encoded information bits based on a CRC polynomial, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and the A information bits; and performing polar encoding on the first bit sequence, where L has a value of one of 3, 4, 5, 8, and 16. Based on an improved CRC polynomial, coding satisfying a false alarm rate (FAR) requirement is implemented.
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公开(公告)号：US20220103189A9
公开(公告)日：2022-03-31
申请号：US17135061
申请日：2020-12-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaocheng Liu , Ying Chen , Rong Li
Abstract: The present disclosure relates to encoding method and devices. One example method includes determining N to-be-encoded bits, where the N to-be-encoded bits include information bits and frozen bits, obtaining a first polarization weight vector including polarization weights of N polarized channels, where the N to-be-encoded bits correspond to the N polarized channels, determining positions of the information bits based on the first polarization weight vector, and performing polar encoding on the N to-be-encoded bits to obtain polar-encoded bits.
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Patent Agency Ranking
公开(公告)号：US20220085914A1
公开(公告)日：2022-03-17
申请号：US17535532
申请日：2021-11-24
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Tianhang Yu , Gongzheng Zhang , Rong Li
IPC: H04L1/00
Abstract: Embodiments of this application provide a coding and modulation method, a demodulation and decoding method, an apparatus, and a device. The coding and modulation method includes obtaining K to-be-encoded bits and a modulation scheme, and coding the K to-be-encoded bits, based on M bit levels of the modulation scheme, to obtain M′ code blocks, where M′
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公开(公告)号：US11251903B2
公开(公告)日：2022-02-15
申请号：US16817626
申请日：2020-03-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chen Xu , Rong Li , Gongzheng Zhang , Yue Zhou , Lingchen Huang
Abstract: Embodiments of this application provide an information processing method and a coding apparatus. An information bit sequence includes a K-bit information block. The information bit sequence is to be processed into an encoded bit sequence with a target code length M. For a given code rate R, when the length K of the information block is greater than a preset threshold, the information bit sequence is segmented into two or more segments. Each segment is polar encoded into an encoded subsequence. The encoded subsequence has a length that equals to a mother code length Ni, and i=1, 2, . . . , p. Each of the p encoded subsequences is rate matched to obtain a rate-matched encoded subsequence. A rate-matched encoded subsequence i of the p rate-matched encoded subsequences has a code length Mi. The p rate-matched encoded subsequences are concatenated into an encoded bit sequence which has a code length M.
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公开(公告)号：US11197281B2
公开(公告)日：2021-12-07
申请号：US16503607
申请日：2019-07-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD
Inventor： Jian Wang , Jun Wang , Rong Li , Huazi Zhang , Chaolong Zhang
Abstract: Embodiments of the present invention provide a control information transmission method and apparatus. The control information transmission method includes: determining, by a network device, N pieces of to-be-jointly-coded downlink control information DCI, where N is an integer greater than or equal to 2; coding, by the network device, the N pieces of DCI in a polar coding manner, to obtain one codeword; and mapping, by the network device, the codeword to a time-frequency resource of a downlink control channel for sending. According to the embodiments of the present invention, not only a relatively high coding gain can be obtained, but a relatively low average processing latency on a decoder side can also be obtained.
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公开(公告)号：US11190215B2
公开(公告)日：2021-11-30
申请号：US16683594
申请日：2019-11-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen Dai , Huazi Zhang , Rong Li , Gongzheng Zhang , Lingchen Huang
Abstract: The present disclosure relates to data transmission methods. One example method includes obtaining K information bits, determining to-be-encoded bits, where the to-be-encoded bits include (K+P) bits, the (K+P) bits include the K information bits and P check bits, the K information bits correspond to K polarization channels, the P check bits include T first-type check bits, all the T first-type check bits are PC bits, and reliability of a polarization channel corresponding to each of the T first-type check bits is greater than a minimum value of reliability of the K polarization channels, and performing polar coding on the to-be-encoded bits to obtain encoded bits, where the (K+P) bits are in a one-to-one correspondence with (K+P) rows in a generator matrix of the encoded bits, a maximum row weight corresponding to the T first-type check bits is less than or equal to W2.
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公开(公告)号：US20210320748A1
公开(公告)日：2021-10-14
申请号：US17356837
申请日：2021-06-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ying Chen , Rongdao Yu , Yunfei Qiao , Hejia Luo , Rong Li
Abstract: A data transmission method and a communications device, the method including: determining, by a first communications device, a target data transmission mode, where the target data transmission mode is used to indicate a quantity of times that the first communications device transmits an encoded-bit combination to a second communications device and an encoded-bit combination transmitted each time, the encoded-bit combination transmitted each time may include one encoded bit sequence or a plurality of encoded bit sequences, where the encoded bit sequence is obtained by encoding all or some of K information bits, and K is a positive integer, and sending, by the first communications device, the encoded-bit combination to the second communications device in the target data transmission mode, and receiving, by the second communications device, the encoded-bit combination sent by the first communications device, and decoding the encoded bit sequence included in the encoded-bit combination.
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