公开(公告)号：US20220224947A1

公开(公告)日：2022-07-14

申请号：US17584726

申请日：2022-01-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ling LIU ,  Bin LI ,  Jiaqi GU ,  Hui SHEN

IPC: H04N19/93 ,  H04N19/184 ,  H04N19/91

Abstract: The present disclosure provides example coding method, apparatus, and computer-readable storage medium. One example method includes sorting a plurality of pieces of run-length encoding (RLE) data based on their distribution probabilities. The plurality of pieces of sorted RLE data are mapped onto a plurality of pieces of reassembled data. The plurality of pieces of reassembled data are expanded into a plurality of pieces of binary data. A first matrix is generated based on the plurality of pieces of binary data. A code sequence is determined by processing a source signal, where the code sequence comprises a first set and a second set. A first vector is decoded to output a third set, where the third set includes one or more bits reserved after processing the source signal and one or more locations at which a decoding error occurs in one or more bits discarded after processing the source signal.

公开(公告)号：US20200052818A1

公开(公告)日：2020-02-13

申请号：US16659726

申请日：2019-10-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiaqi GU ,  Hui SHEN ,  Bin LI ,  Wen TONG

IPC: H04L1/00 ,  H04W72/04 ,  H04L29/08 ,  H04W72/12

Abstract: An information adding method and apparatus, to increase a quantity of terminals that can be represented by an identifier sequence. The method includes: performing, by a transmit end, polar code encoding on a first bit sequence to generate an encoded second bit sequence; adding, by the transmit end, a part or all of an identifier sequence to the second bit sequence to generate a third bit sequence, where the identifier sequence is used to identify a terminal; and sending, by the transmit end, the third bit sequence.

公开(公告)号：US20250125821A1

公开(公告)日：2025-04-17

申请号：US18999078

申请日：2024-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei LIN ,  Jiahui LI ,  Mengyao MA ,  Zihan TANG ,  Jiaqi GU ,  Xun YANG ,  Yinggang DU

IPC: H03M13/11

Abstract: An encoding method, a decoding method, and an apparatus are provided. The methods include: A transmit end obtains a first bit sequence, performs LDPC encoding based on the first bit sequence to obtain a second bit sequence, and sends the second bit sequence. The first bit sequence includes K0 information bits, sparsity of the first bit sequence is first sparsity, the second bit sequence includes K1 information bits and N1 parity bits, a value of K1 is determined based on the first sparsity, K1 is less than K0, and K1 is a nonnegative integer. Correspondingly, a receive end obtains the second bit sequence, and then performs LDPC decoding on the second bit sequence based on the first sparsity and a code rate, to obtain the K0 information bits.

公开(公告)号：US20240171311A1

公开(公告)日：2024-05-23

申请号：US18430905

申请日：2024-02-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zihan TANG ,  Mengyao MA ,  Jiaqi GU ,  Jiahui LI ,  Wei LIN ,  Xun YANG

IPC: H04L1/00

CPC classification number: H04L1/0076 ,  H04L1/0061

Abstract: This application discloses a communication method that comprises obtaining first data, where the length of the first data is A; compressing the first data into second data, where the length of the second data is C; and generating third data based on the second data, where the third data includes the second data and (T−C+p) alignment bits. T is a threshold in the J thresholds that is greater than or equal to C and the closest to C. The J thresholds correspond to A and are greater than 0, with J being a positive integer greater than or equal to 2. p is a quantity of auxiliary check bits and is an integer greater than or equal to 0. The communication method further comprises performing channel encoding on the third data to obtain fourth data and sending the fourth data.

公开(公告)号：US20240120939A1

公开(公告)日：2024-04-11

申请号：US18532211

申请日：2023-12-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengfan ZHENG ,  Cong LING ,  Jiaqi GU ,  Mengyao MA

IPC: H03M7/14

CPC classification number: H03M7/14

Abstract: This application discloses a polar encoding method and apparatus and a polar decoding method and apparatus, to apply polar codes to source coding and decoding, to improve source coding and decoding performance. The method may be implemented by using the following steps: obtaining to-be-encoded source bits; performing first polar encoding on the to-be-encoded source bits to obtain encoded source bits, where the first polar encoding includes first transformation and second transformation, the first transformation is polarization transformation, a mother code length corresponding to the first transformation is Ns, the polarization transformation is performed on the to-be-encoded source bits to obtain first source bits, and the second transformation is performed on the first source bits to obtain the encoded source bits; determining assistance information based on the first source bits; and outputting a source coding codeword, where the source coding codeword includes the encoded source bits and the assistance information.

公开(公告)号：US20220174329A1

公开(公告)日：2022-06-02

申请号：US17674676

申请日：2022-02-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： BIN LI ,  Ling LIU ,  Hui SHEN ,  Jiaqi GU

IPC: H04N19/93 ,  H04N19/124 ,  H04N19/91

Abstract: This application discloses an image encoding method and apparatus, an image decoding method and apparatus, and a chip. In the encoding method, first, a run-length value sequence and a level value sequence are obtained by using a quantized sequence of an image; updated distribution probabilities of level values are obtained based on distribution probabilities of run-length values and the level values and according to a mapping rule; finally, entropy encoding is performed based on the level value sequence and the updated distribution probabilities of the level values, to output encoded image data. A decoder side only needs to additionally learn of the mapping rule to complete decoding. The method is simple to implement, and can improve image compression efficiency and effectively reduce an amount of data for representing the image.

公开(公告)号：US20220116141A1

公开(公告)日：2022-04-14

申请号：US17556756

申请日：2021-12-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ling LIU ,  Bin LI ,  Jiaqi GU ,  Hui SHEN

IPC: H04L1/00 ,  H03M13/13

Abstract: Embodiments of the present disclosure disclose a communication method and apparatus, including: obtaining to-be-encoded first information, where the first information includes a first information bit set and a second information bit set, bits included in the first information bit set are able to be obtained through correct decoding by a plurality of terminal devices, and bits included in the second information bit set are able to be obtained through correct decoding by some of the plurality of terminal devices; performing first polar encoding on the first information bit set to obtain first encoded information; performing second polar encoding on the second information bit set based on the first encoded information to obtain second encoded information; and outputting the second encoded information. Resources can be saved by implementing the embodiments of the present disclosure.