Patents by Inventor Chaolong Zhang

Chaolong Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10992318
    Abstract: This application provides a coding method and apparatus, and a device. The method includes: dividing, by a sending device, a subchannel location sequence number set into at least two mutually exclusive subsets based on an interleaving operation, where a subchannel location in each subset still belongs to the subset and does not belong to another subset after any quantity of interleaving operations are performed; determining, by the sending device, an information bit location set and a frozen bit location set of a to-be-coded polar polar code based on the at least two mutually exclusive subsets; and coding, by the sending device, the to-be-coded polar code based on the information bit location set and the frozen bit location set. The coding method and apparatus, and the device provided in this application can improve communication performance of polar coding.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: April 27, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jian Wang, Gongzheng Zhang, Hejia Luo, Chaolong Zhang, Rong Li
  • Patent number: 10972130
    Abstract: An encoding method, an encoding apparatus, a decoding method, and a decoding apparatus are provided. The encoding method includes: determining a size of a shift matrix based on a length of an information sequence and a length of an identifier sequence; constructing a check matrix based on the size of the shift matrix and a base matrix; and performing low-density parity-check LDPC encoding on the information sequence and the identifier sequence based on the check matrix. The identifier sequence is a non-all-zero sequence. Because the encoded codeword includes information of the identifier sequence, a receive device can identify whether information corresponding to the encoded codeword is addressed to the receive device, thereby improving information processing efficiency in the transmission.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: April 6, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chaolong Zhang, Lingchen Huang, Hejia Luo, Rong Li, Jun Wang
  • Publication number: 20210058095
    Abstract: Embodiments of this application disclose provides a low density parity check (LDPC) channel encoding method for use in a wireless communications system. A communication device encodes an input bit sequence by using a LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. Embodiments of the application provide eight particular designs of the base matrix. The encoding method provided in the embodiments of the application can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.
    Type: Application
    Filed: September 6, 2020
    Publication date: February 25, 2021
    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
    Inventors: Jie Jin, Ivan Leonidovich Mazurenko, Aleksandr Aleksandrovich Petiushko, Chaolong Zhang
  • Patent number: 10880038
    Abstract: Embodiments of this application provide a method and an apparatus for constructing a sequence of polar codes. In an implementation, a construction sequence P? is read from a construction sequence P, where the length of the construction sequence P? is an encoding length M and the length of the construction sequence P is N. The construction sequence P? is demapped to a reliability ranking sequence Q? based on a rate matching rule, and K elements that have largest reliability values is read from the reliability ranking sequence Q?, to obtain an information bit sequence number set A.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: December 29, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lingchen Huang, Gongzheng Zhang, Chen Xu, Chaolong Zhang, Jun Wang
  • Publication number: 20200343912
    Abstract: A low density parity check (LDPC) channel encoding method is used in a wireless communications system. A communication device encodes an input bit sequence by using an LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The base matrix may be one of eight exemplary designs. The encoding method can be used in various communications systems including fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.
    Type: Application
    Filed: July 8, 2020
    Publication date: October 29, 2020
    Inventors: Jie JIN, Wen TONG, Jun WANG, Aleksandr Aleksandrovich PETIUSHKO, Ivan Leonidovich MAZURENKO, Chaolong ZHANG
  • Patent number: 10784900
    Abstract: A rate matching method for a polar code is provided, to improve performance. The method includes: encoding, based on an N*N encoding matrix of a polar code, a sequence including N first bits, to generate a mother code including N second bits, where the N first bits are in a one-to-one correspondence with N rows in the encoding matrix in sequence, and the N second bits are in a one-to-one correspondence with N columns in the encoding matrix in sequence; determining N?M to-be-punctured second bits from the N second bits, where at least one first bit in N?M first bits participating in encoding of the N?M second bits belongs to the first M first bits in the N first bits, and the N?M first bits are fixed bits; and puncturing the N?M second bits, to obtain a target polar code including M second bits.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: September 22, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Gongzheng Zhang, Ying Chen, Rong Li, Chaolong Zhang, Yourui Huangfu, Huazi Zhang
  • Patent number: 10776232
    Abstract: A Deep Belief Network (DBN) feature extraction-based analogue circuit fault diagnosis method comprises the following steps: a time-domain response signal of a tested analogue circuit is acquired, where the acquired time-domain response signal is an output voltage signal of the tested analogue circuit; DBN-based feature extraction is performed on the acquired voltage signal, wherein learning rates of restricted Boltzmann machines in a DBN are optimized and acquired by virtue of a quantum-behaved particle swarm optimization (QPSO); a support vector machine (SVM)-based fault diagnosis model is constructed, wherein a penalty factor and a width factor of an SVM are optimized and acquired by virtue of the QPSO; and feature data of test data are input into the SVM-based fault diagnosis model, and a fault diagnosis result is output, where the feature data of the test data is generated by performing the DBN-based feature extraction on the test data.
    Type: Grant
    Filed: July 4, 2018
    Date of Patent: September 15, 2020
    Assignee: WUHAN UNIVERSITY
    Inventors: Yigang He, Chaolong Zhang, Hui Zhang, Baiqiang Yin, Jinguang Jiang, Liulu He, Jiajun Duan
  • Patent number: 10771092
    Abstract: Embodiments of this application disclose provides a low density parity check (LDPC) channel encoding method for use in a wireless communications system. A communication device encodes an input bit sequence by using a LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. Embodiments of the application provide eight particular designs of the base matrix. The encoding method provided in the embodiments of the application can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: September 8, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jie Jin, Ivan Leonidovich Mazurenko, Aleksandr Aleksandrovich Petiushko, Chaolong Zhang
  • Publication number: 20200271720
    Abstract: A method for diagnosing analog circuit fault based on vector-valued regularized kernel function approximation, includes steps of: step (1) acquiring a fault response voltage signal of an analog circuit; step (2) carrying out wavelet packet transform on the collected signal, and calculating a wavelet packet coefficient energy value as a characteristic parameter; step (3) utilizing a quantum particle swarm optimization algorithm to optimize a regularization parameter and kernel parameter of vector-valued regularized kernel function approximation, and training a fault diagnosis model; and step (4) utilizing the trained diagnosis model to recognize circuit faults.
    Type: Application
    Filed: May 9, 2020
    Publication date: August 27, 2020
    Inventors: Yigang He, Wei He, Baiqiang Yin, Bing Li, Zhigang Li, Lei Zuo, Chaolong Zhang
  • Patent number: 10742235
    Abstract: A low density parity check (LDPC) channel encoding method is used in a wireless communications system. A communication device encodes an input bit sequence by using an LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The base matrix may be one of eight exemplary designs. The encoding method can be used in various communications systems including fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: August 11, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jie Jin, Wen Tong, Jun Wang, Aleksandr Aleksandrovich Petiushko, Ivan Leonidovich Mazurenko, Chaolong Zhang
  • Patent number: 10706332
    Abstract: An analog circuit fault mode classification method comprises the following implementation steps: (1) collecting M groups of voltage signal sample vectors Vij to each of fault modes Fi of the analog circuit by using a data collection board; (2) sequentially extracting fault characteristic vectors VijF of the voltage signal sample vectors Vij by using subspace projection; (3) standardizing the extracted fault characteristic vectors VijF to obtain standardized fault characteristic vectors; (4) constructing a fault mode classifier based on a support vector machine, inputting the standardized fault characteristic vectors, performing learning and training on the classifier, and determining structure parameters of the classifier; and (5) completing determination of fault modes according to fault mode determination rules. The fault mode classifier of the present invention is simple in learning and training and reliable in mode classification accuracy.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: July 7, 2020
    Assignee: HEFEI UNIVERSITY OF TECHNOLOGY
    Inventors: Lifen Yuan, Shuai Luo, Yigang He, Peng Chen, Chaolong Zhang, Ying Long, Zhen Cheng, Zhijie Yuan, Deqin Zhao
  • Publication number: 20200145023
    Abstract: This application provides a polar code encoding and decoding method and apparatus and a device. An example method includes: sequentially configuring, by a sending device, information bits and first check bits on subchannels in a first subchannel set, and configuring frozen bits on subchannels in a second subchannel set, where the subchannels in the first subchannel set are sorted according to a natural order of serial numbers of the subchannels; and performing polarization encoding on bits on the subchannels to obtain an encoded sequence. In this way, encoding efficiency and decoding efficiency are improved.
    Type: Application
    Filed: January 6, 2020
    Publication date: May 7, 2020
    Inventors: Yunfei Qiao, Gongzheng Zhang, Chaolong Zhang, Jian Wang
  • Publication number: 20200127682
    Abstract: This application discloses an encoding method, an apparatus, a communications device, and a communications system. The method includes: encoding an input bit sequence by using a low density parity check LDPC matrix, where the LDPC matrix is obtained based on a lifting factor Z and a base matrix, and the base matrix includes a row 0 to a row 4 and a column 0 to a column 26 in one of matrices shown in FIG. 3b-1A to FIG. 3b-8B, or the base matrix includes a row 0 to a row 4 and some of a column 0 to a column 26 in one of matrices shown in FIG. 3b-1A to FIG. 3b-8B. According to the encoding method, the apparatus, the communications device, and the communications system, channel coding requirements can be met.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Inventors: Jie JIN, Ivan Leonidovich MAZURENKO, Aleksandr Aleksandrovich PETIUSHKO, Chaolong ZHANG
  • Publication number: 20200106458
    Abstract: This application discloses an information processing method and apparatus, a communications device, and a communications system. The method includes: encoding an input sequence by using a low density parity check LDPC matrix to obtain a bit sequence D, where a base matrix of the LDPC matrix is represented by a matrix of m rows and n columns, each column corresponds to a group of Z continuous bits in the bit sequence D, and both n and Z are integers greater than 0; and obtaining an output bit sequence based on a bit sequence V, where the bit sequence V is obtained by permuting groups of bits corresponding to at least two parity check columns in the bit sequence D.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Inventors: Jie JIN, Wen TONG, Ivanov ILYA, Aleksandr Aleksandrovich PETIUSHKO, Chaolong ZHANG
  • Publication number: 20200092039
    Abstract: This application provides a coding and decoding method and apparatus. The method includes: performing polarization coding on first to-be-coded information, to obtain first coded information with a bit sequence length of M, where M is a positive integer; sending the first coded information on a first channel corresponding to the first to-be-coded information; performing polarization coding on second to-be-coded information, to obtain second coded information with a bit sequence length of 2M, where the second to-be-coded information includes the first to-be-coded information, and differences between sequence numbers of information bits corresponding to the first to-be-coded information and sequence numbers of information bits at (M+1)th to 2Mth bit positions in information bits corresponding to the second to-be-coded information are sequentially M in ascending order of sequence numbers.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Inventors: Jian WANG, Yunfei QIAO, Gongzheng ZHANG, Chaolong ZHANG, Guijie WANG
  • Publication number: 20200091935
    Abstract: A coding method, a wireless device, and a chip are described. A coding method may include obtaining, based on a sequence whose length is 2n?, a mother code sequence used for coding, where the sequence whose length is 2n? includes 2n? sequence numbers, a length of the mother code sequence is 2n, the mother code sequence includes 2n sequence numbers, the 2n sequence numbers are some or all of the 2n? sequence numbers, n? is a natural number, and n is a natural number less than or equal to n?. The method may also include coding an input to-be-coded bit by using the mother code sequence. According to this method, a system may store one or more long sequences, and then obtain a required mother code sequence from one of the long sequences according to a coding requirement, thereby reducing storage overheads of the system.
    Type: Application
    Filed: November 20, 2019
    Publication date: March 19, 2020
    Inventors: Aleksei Eduardovich MAEVSKII, Vladimir GRITSENKO, Yunfei QIAO, Jian WANG, Chaolong ZHANG
  • Publication number: 20200067533
    Abstract: This application provides a coding method and apparatus, and a device. The method includes: dividing, by a sending device, a subchannel location sequence number set into at least two mutually exclusive subsets based on an interleaving operation, where a subchannel location in each subset still belongs to the subset and does not belong to another subset after any quantity of interleaving operations are performed; determining, by the sending device, an information bit location set and a frozen bit location set of a to-be-coded polar polar code based on the at least two mutually exclusive subsets; and coding, by the sending device, the to-be-coded polar code based on the information bit location set and the frozen bit location set. The coding method and apparatus, and the device provided in this application can improve communication performance of polar coding.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Inventors: Jian WANG, Gongzheng ZHANG, Hejia LUO, Chaolong ZHANG, Rong LI
  • Publication number: 20200052720
    Abstract: Embodiments of this application disclose provides a low density parity check (LDPC) channel encoding method for use in a wireless communications system. A communication device encodes an input bit sequence by using a LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. Embodiments of the application provide eight particular designs of the base matrix. The encoding method provided in the embodiments of the application can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.
    Type: Application
    Filed: May 28, 2019
    Publication date: February 13, 2020
    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
    Inventors: Jie Jin, Ivan Leonidovich Mazurenko, Aleksandr Aleksandrovich Petiushko, Chaolong Zhang
  • Publication number: 20200052858
    Abstract: The present disclosure relates to information processing methods and apparatus, communications devices, and communications systems. One example method includes adding redundancy check bits to a bit sequence A to obtain a bit sequence C, performing cyclic shift on the bit sequence C based on a shift t and a lifting factor z to obtain a bit sequence Ct, where t is an integer greater than or equal to 0, and the shift t is obtained based on second information, and performing low-density parity-check (LDPC) encoding on the bit sequence Ct to obtain a bit sequence Dt.
    Type: Application
    Filed: October 18, 2019
    Publication date: February 13, 2020
    Inventors: Liang MA, Xin ZENG, Yuejun WEI, Chaolong ZHANG, Gongzheng ZHANG
  • Patent number: 10539613
    Abstract: An analog circuit fault diagnosis method using a single testable node comprises the following steps: (1) obtaining prior sample data vectors under each fault mode; (2) computing a statistical average of the prior sample data vectors under each of the fault modes; (3) decomposing a signal by an orthogonal Haar wavelet filter set; (4) extracting the feature factor of the prior sample fault modes; (5) extracting a fault-mode-to-be-tested feature factor; (6) computing a correlation coefficient matrix and correlation metric parameters between the feature factor of the prior sample fault modes and the feature factor of the fault-mode-to-be-tested; and (7) determining a fault mode according to a maximal correlation principle by comparing the correlation metric parameters.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: January 21, 2020
    Assignee: HEFEI UNIVERSITY OF TECHNOLOGY
    Inventors: Yigang He, Lifen Yuan, Lei Wu, Yesheng Sun, Chaolong Zhang, Ying Long, Zhen Cheng, Zhijie Yuan, Deqin Zhao