Patents by Inventor Xianbin Wang

Xianbin Wang 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).

  • Publication number: 20240039777
    Abstract: This application discloses a modulation method, a demodulation method, and a communication apparatus, and relates to the field of communication technologies. The communication apparatus may obtain information bit sequences, divide the information bit sequences into G groups, then separately encode each group of information bit sequences to obtain r encoded bit sequences, map the r encoded bit sequences into a modulation symbol sequence, and output the modulation symbol sequence. The modulation method provided in embodiments of this application may implement a flexible compromise between complexity and robustness, and has a wider range of application.
    Type: Application
    Filed: October 13, 2023
    Publication date: February 1, 2024
    Inventors: Xianhao Meng, Xianbin Wang, Yongtang Shi, Guiying Yan, Zhiming Ma
  • Publication number: 20240040642
    Abstract: According to a first aspect of the disclosure, methods are discussed in which a station (STA) sends a message to an access point, for example an associated access point, about a change in multi-AP coordination parameters. A STA, which may be a mobile STA, can be in a better position than the APs themselves, for detecting changes in conditions which can affect the effectiveness, or even the desirability of the multi-AP coordination. Accordingly the STA can send a message reporting detected conditions related to multi-AP coordination. In some embodiments, such a message can request for initializing multi-AP coordination, such a message can be in response to a triggering event detected by the STA. In response to such a triggering event, the STA can analyze the STA's service needs, and send the message about a change in multi-AP coordination parameters. A second aspect of the disclosure provides an AP-to-AP negotiation process for multi-AP coordination.
    Type: Application
    Filed: July 29, 2022
    Publication date: February 1, 2024
    Applicants: HUAWEI TECHNOLOGIES CANADA CO., LTD., THE UNIVERSITY OF WESTERN ONTARIO
    Inventors: Wudan HAN, Xianbin WANG, Osama ABOUL-MAGD, Yan XIN, Jung Hoon SUH, Kwok Shum AU
  • Publication number: 20240018048
    Abstract: A method for preparing low-background cement includes: uniformly mixing a seed crystal of cement, C4AF whiskers, and high-magnesium raw material to yield a first mixture, calcining the first mixture at 1400-1500° C., to yield a low-background clinker, the first mixture including 1.0-5.0 wt. % of the seed crystal of cement, 1.0-5.0 wt. % of the C4AF whiskers, and the balance is the high-magnesium raw material; and grinding a second mixture of the low-background clinker and gypsum, to yield low-background cement. The seed crystal of cement is a high-magnesium and low hydration heat clinker, has a specific activity of Ra-226 radioactive nuclides within 50 Bq/kg, and the MgO content of the clinker is between 4.0 wt. % and 5.0 wt. %, with 50 wt. % <C3S <55.0 wt. %; and the high-magnesium raw material has a MgO content between 2.5 wt. % and 3.0 wt. %.
    Type: Application
    Filed: May 12, 2023
    Publication date: January 18, 2024
    Inventors: Wen HUANG, Yang YU, Min WANG, Zhaijun WEN, Tingting BAO, Guang YAO, Xin SHEN, Yun LIU, Jing WANG, Xianbin WANG, Zhongcheng MA, Xianshu GAO, Kunyue ZHANG, Guanbao TANG, Suihua GUO, Mingming SUN, Ao LIU
  • Publication number: 20240007222
    Abstract: A coding method and apparatus are provided. The method includes: coding an information bit by using a preset generator matrix of a systematic (U|U+V)-code to obtain a codeword of a systematic code. The preset generator matrix of the systematic (U|U+V)-code includes a first identity sub-matrix of a U code and a second identity sub-matrix of a V code. A plurality of elements in a same column as the first identity sub-matrix are all 0. A plurality of elements in a same column as the second identity sub-matrix are all 0.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 4, 2024
    Inventors: Li Chen, Rong Li, Jinjun Cheng, Xianbin Wang
  • Publication number: 20240007220
    Abstract: Embodiments of this application relate to the field of communications technologies, and provide an encoding and decoding method and apparatus, to reduce encoding/decoding complexity and improve encoding/decoding performance. In the method, a transmit device may obtain N to-be-encoded vectors. The transmit device may encode the N to-be-encoded vectors based on a polar code kernel matrix, to obtain N temporary code blocks. The transmit device may respectively perform a mask operation on target bit sequences in an (n+1)th temporary code block to an (n+M)th temporary code block and a source bit sequence segment of an nth temporary code block, to obtain M mask bit sequences. The transmit device may respectively encode the M mask bit sequences based on the polar kernel matrix, to obtain M encoded mask bit sequences. The transmit device may sum the M encoded mask bit sequences and M temporary code blocks, to obtain M first code blocks.
    Type: Application
    Filed: September 15, 2023
    Publication date: January 4, 2024
    Inventors: Huazi ZHANG, Rong LI, Jiajie TONG, Xianbin WANG, Jun WANG, Wen TONG
  • Publication number: 20230421291
    Abstract: This application provides a polar encoding and modulation method and apparatus, and a demodulation and decoding method and apparatus. In the polar encoding and modulation method, a probability shaping technology is combined with a polar code, to group to-be-encoded bit sequences, and probability shaping is performed on a group of bit sequences. Modulation and mapping are directly performed on all bit sequences obtained through probability shaping, and polar transformation is performed on some bit sequences obtained through probability shaping together with other groups of bit sequences for modulation and mapping. In the demodulation and decoding method, a modulation symbol sequence is demodulated and decoded, a part of obtained bit sequence is directly mapped to obtain a second bit sequence, and the other part is continuously decoded to obtain a first bit sequence.
    Type: Application
    Filed: September 11, 2023
    Publication date: December 28, 2023
    Inventors: Xianbin Wang, Yuan Li, Huazi Zhang, Rong Li, Jun Wang
  • Publication number: 20230387939
    Abstract: A sending device may obtain a first to-be-encoded vector. The sending device may perform first encoding on the first to-be-encoded vector, to obtain a second to-be-encoded vector. The sending device may encode the second to-be-encoded vector based on a first generator matrix, to obtain an encoded codeword. The first generator matrix may include at least N+1 submatrices a, and N of the submatrices a may be located on a main diagonal of the first generator matrix. The first generator matrix may be a block upper triangular matrix, or the first generator matrix may be a block lower triangular matrix. The submatrix a is a polar kernel matrix with a size of 2m*2m, m is a natural number, and N is a natural number. The sending device may send the encoded codeword.
    Type: Application
    Filed: August 8, 2023
    Publication date: November 30, 2023
    Inventors: Huazi Zhang, Wen Tong, Jun Wang, Rong Li, Jiajie Tong, Xianbin Wang
  • Publication number: 20230318739
    Abstract: A method for determining an auxiliary bit of a polar code and an apparatus. At least K sub-channels are determined based on reliability of a first sub-channel set, where the K sub-channels carry information bits. S sub-channel subsets are determined based on the first sub-channel set, an ith sub-channel subset in the S sub-channel subsets includes Ji sub-channels carrying auxiliary bits and Ki sub-channels in the K sub-channels. Sequence numbers of the Ji sub-channels carrying the auxiliary bits are after sequence numbers of the Ki sub-channels. The auxiliary bits are known redundancy check RC bits. Polar encoding is performed on the information bits and the auxiliary bits, to output polar-encoded data.
    Type: Application
    Filed: June 2, 2023
    Publication date: October 5, 2023
    Inventors: Jiajie TONG, Xianbin WANG, Huazi ZHANG, Shengchen DAI, Rong LI, Jun WANG
  • Patent number: 11777532
    Abstract: An encoding method includes, when a first code rate K/Nmax is less than or equal to a code rate threshold Rt, reading a first matrix from a preset code table based on a second matrix. The second matrix includes a matrix that is read from the preset code table and that corresponds to a maximum supported code length Nmax and Rt, where K is an integer and N is an integer. The method also includes reading K rows and (N?K) columns starting from a preset first location in the first matrix to obtain a third matrix. The method further includes adding a unit matrix with K rows and K columns to a left side of the third matrix to obtain a generator matrix of an (N, K) linear block code. K rows and (Nmax?Nmax×Rt) columns of the second matrix in a first direction are consistent with K rows and (Nmax?Nmax×Rt) columns of the first matrix in a second direction.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: October 3, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shengchen Dai, Huazi Zhang, Xianbin Wang, Lingchen Huang, Rong Li, Yunfei Qiao
  • Publication number: 20230308117
    Abstract: An encoding method and apparatus are provided, to propose a construction and encoding scheme of a BCH code. A code length and a code rate of an obtained BCH code are flexible, to satisfy a requirement of flexible channel encoding in wireless communication. The method includes determining a first encoding parameter based on a first BCH code, where the first BCH code is a to-be-coded BCH code, the first encoding parameter is a first code or a generator matrix of a first code, the first code has a code length of n and an information bit length of k, n is greater than o, and k is greater than o, and performing BCH encoding based on the first encoding parameter.
    Type: Application
    Filed: February 28, 2023
    Publication date: September 28, 2023
    Inventors: Huazi Zhang, Xianbin Wang, Jiajie Tong, Shengchen Dai, Rong Li, Jun Wang
  • Publication number: 20230300649
    Abstract: The present disclosure provides for methods and systems for improved channel information gathering mechanism. An aspect of the disclosure provides a method. The method includes sending, to one or more stations (STAs), a request for channel information. The channel information being related to one or more channels between an access point (AP) and the one or more STAs. The method further includes receiving, from the one or more (STA), one or more physical layer (PHY) protocol data units (PPDUs). The PPDUs includes channel feature information (CFI) associated with the one or more channels. In some embodiments, the request includes a beamforming report poll (BFRP) trigger frame having a user information field. The user information subfield indicating one or more thresholds associated with one or more parameters of the channel feature information.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 21, 2023
    Applicants: HUAWEI TECHNOLOGIES CANADA CO., LTD., The University of Western Ontario
    Inventors: Jie MEI, Xianbin WANG, Yan XIN, Kwok Shum AU, Jung Hoon SUH, Osama ABOUL-MAGD
  • Patent number: 11764812
    Abstract: Embodiments disclose an encoding method and a communications device. The method includes: obtaining and encoding a to-be-encoded information bit sequence based on a binary vector P1 of a first code, to obtain and output an encoded bit sequence, where P1 is determined based on a binary vector P2 of a second code and a binary vector P3 of a third code, P1, P2, and P3 indicate an information bit and a frozen bit of the first code, the second code and the third code respectively, a code length of the first code, the second code and the third code is n1, n2 and n3 respectively, a quantity of information bits of the first code, the second code and the third code is k1, k2 and k3 respectively, n1=n2*n3, and k1=k2*k3. Therefore, parallel decoding can be performed, helping reduce a decoding delay.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: September 19, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xianbin Wang, Huazi Zhang, Rong Li, Lingchen Huang, Shengchen Dai, Jiajie Tong
  • Publication number: 20230283406
    Abstract: This application provides a coding method and apparatus.
    Type: Application
    Filed: March 20, 2023
    Publication date: September 7, 2023
    Inventors: Xianbin Wang, Shengchen Dai, Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang
  • Publication number: 20230283299
    Abstract: This application provides a polar encoding method and apparatus. The method can include obtaining a basic sequence, where the basic sequence includes N0 subchannel numbers. The method can also include sequentially reading first subchannel numbers from the basic sequence, and sequentially reading 2m second subchannel numbers from the basic sequence starting from an Mth subchannel number based on the first subchannel number read each time; and adding q*N0 to each of the 2m second subchannel numbers to obtain 2m third subchannel numbers. Furthermore, the method can include constructing a polar code by using subchannels corresponding to the 2m third subchannel numbers as information bits. A polar code with another code length is constructed based on a sequence with a length of N0. A length of a polar code that needs to be stored is therefore reduced, which reduces complexity and is also easy to implement.
    Type: Application
    Filed: May 15, 2023
    Publication date: September 7, 2023
    Inventors: Xianbin WANG, Rong LI, Huazi ZHANG, Shengchen DAI, Jiajie TONG, Yunfei QIAO, Jun WANG
  • Publication number: 20230261676
    Abstract: A decoding method includes: decoding first to-be-decoded information based on a first decoder to obtain a first decoding result that includes first soft information or a first hard output; and correcting the first decoding result based on a first correction model to obtain a corrected first decoding result of the first to-be-decoded information. The first correction model is obtained through training based on training data that includes a training decoding result and a corrected training decoding result. The training decoding result is a decoding result obtained after the first decoder decodes training to-be-decoded information, and the corrected training decoding result is a corrected decoding result corresponding to the training decoding result. In this way, after a decoder performs decoding, a decoding result can be corrected based on a correction model.
    Type: Application
    Filed: April 17, 2023
    Publication date: August 17, 2023
    Inventors: Xianbin Wang, Huazi Zhang, Rong Li, Jiajie Tong, Shengchen Dai, Jun Wang
  • Publication number: 20230239119
    Abstract: The present disclosure provides for methods, systems and apparatus related to Variable High Throughput (HT) Control Field. An aspect of the disclosure provides for a method performed by a station (STA). The method includes sending, to a second STA, a message including a frame, the frame including a variable high throughput (HT) control field. The variable HT further includes a first subfield indicating an N number of control IDs, wherein N is equal to or more than one. The variable HT further includes N additional subfields. Each of the N additional subfield includes: a control identifier (ID) field and a control information field associated with the Control ID field. The method further includes receiving, from the second STA, a response.
    Type: Application
    Filed: January 25, 2022
    Publication date: July 27, 2023
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jiyang BAI, Xianbin WANG, Jung Hoon SUH, Yan XIN, Osama ABOUL-MAGD, Kwok Shum AU
  • Publication number: 20230224082
    Abstract: A retransmission method includes obtaining, by a transmitter, a to-be-coded bit sequence that comprises K to-be-coded bits, where K is a positive integer. The retransmission method further includes performing polar coding on the to-be-coded bit sequence thereby obtaining a coded first bit sequence, and determining an initial transmission version (RV0). A length of the coded first bit sequence is N0. The retransmission method further includes determining a length (E1) of a retransmission version (RV1), determining the RV1 based on an initial transmission bit rate (R0), and sending the RV1.
    Type: Application
    Filed: February 24, 2023
    Publication date: July 13, 2023
    Inventors: Xianbin WANG, Shengchen DAI, Rong LI, Jian WANG, Xingqing CHENG
  • Publication number: 20230208554
    Abstract: Encoding methods and apparatuses are provided. The method includes: obtaining to-be-encoded information including K information bits and a mother code length N; determining, based on K and N, a set I corresponding to subchannels of the information bits, where information bits corresponding to subchannel sequence numbers in I are distributed in X outer-code subcodes including X1 first-type outer-code subcodes, quantities of information bits in the X1 first-type outer-code subcodes are P1, P2, . . . , and PX1, Pi (i=1, 2, . . . , X1) is one of K1, K2, . . . , and Km, which are greater than a first threshold LB and less than a second threshold HB, 1=<m<(HB?LB?1), LB+1<HB, HB<=a length B of an outer-code subcode, X, HB, and B are positive integers, and LB is an integer >=0; and performing encoding based on I.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 29, 2023
    Inventors: Xianbin Wang, Jiajie Tong, Huazi Zhang, Shengchen Dai, Rong Li, Jun Wang
  • Publication number: 20230208442
    Abstract: An encoding method includes obtaining to-be-encoded information and a mother code length N. The to-be-encoded information includes K information bits. The method also includes determining, based on K and N, a set I corresponding to subchannels of the information bits and a set F corresponding to subchannels of frozen bits. Information bits corresponding to subchannel sequence numbers in the set I are distributed in X outer component codes, a code length of each outer component code is B, and the X outer component codes includes a first-type outer component code and a second-type outer component code or the X outer component codes include a first-type outer component code, a second-type outer component code, and one third-type outer component code. Different types of component codes have different code rates. The method additionally includes performing polarization encoding based on the set I and the set F.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 29, 2023
    Inventors: Jiajie TONG, Huazi ZHANG, Xianbin WANG, Shengchen DAI, Rong LI, Jun WANG
  • Patent number: 11690091
    Abstract: A resource mapping method and apparatus and a resource mapping indication method and apparatus are provided to adapt to an interference cancellation function of a receiver. According to the method, a network device obtains a mapping mode used for resource mapping during uplink transmission, and sends, to a terminal, information indicating the mapping mode. The mapping mode is used to indicate mapping locations of a plurality of modulation symbols in a resource mapping block (RMB), the RMB comprises a plurality of resource elements (REs), and at least one of the plurality of REs carries at least two modulation symbols.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: June 27, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Huazi Zhang, Ming Jia, Rong Li, Jian Wang, Xianbin Wang, Shengchen Dai, Jun Wang, Yiqun Ge, Yan Chen, Jianglei Ma