公开(公告)号：US20230344450A1

公开(公告)日：2023-10-26

申请号：US18138702

申请日：2023-04-24

申请人： ZTE Corporation

发明人： Liguang LI ,  Jun XU ,  Jin XU

IPC分类号： H03M13/11 ,  H03M13/03 ,  H03M13/00 ,  H04L1/00

CPC分类号： H03M13/1168 ,  H03M13/036 ,  H03M13/618 ,  H03M13/6516 ,  H04L1/0003

摘要： A quasi-cyclic LDPC coding and decoding method and apparatus, and an LDPC coder and decoder. The method includes: determining from a mother basis matrix set a basis matrix used for low density parity check (LDPC) coding (S202), wherein the basis matrix used for LDPC coding includes a first-type element and a second-type element, the first-type element corresponds to an all-zero square matrix, the second-type element corresponds to a matrix obtained by means of a cyclic shift of a unit matrix according to a value of the second-type element, and dimensions of the all-zero square matrix and the unit matrix are equal; and performing LDPC coding on an information sequence to be coded according to the basis matrix used for LDPC coding, and/or performing LDPC decoding on a data sequence to be decoded according to the basis matrix used for LDPC coding (S204).

公开(公告)号：US20230283508A1

公开(公告)日：2023-09-07

申请号：US18014936

申请日：2021-07-01

申请人： ZTE CORPORATION

发明人： Yu XIN ,  Tong BAO ,  Jian HUA ,  Guanghui YU ,  Liujun HU ,  Jin XU

IPC分类号： H04L27/26 ,  G06F17/18

CPC分类号： H04L27/2627 ,  G06F17/18

摘要： A data modulation method, a communication device and a storage medium are disclosed. The data modulation method includes, performing a preset modulation operation on B consecutive data blocks, and configuring the B consecutive data blocks to have a same head-end reference signal sequence and/or a same tail-end reference signal sequence, inserting Z zeros between adjacent time domain data of the B consecutive data blocks, performing a filtering operation on the B consecutive data blocks into which Z zeros have been inserted, and transmitting the filtered data on a physical resource, where B is greater than or equal to 2 (i.e., B≥2), and Z is greater than or equal to 0 (i.e., Z≥0).

公开(公告)号：US20230216723A1

公开(公告)日：2023-07-06

申请号：US18008545

申请日：2021-05-27

申请人： ZTE CORPORATION

发明人： Yu XIN ,  Tong BAO ,  Guanghui YU ,  Liujun HU ,  Jin XU

IPC分类号： H04L27/26

CPC分类号： H04L27/2691

摘要： Provided are a data modulation method and apparatus, a device, and a storage medium. The data modulation method includes modulating a data sequence by using N constellation point modulation symbols {S(n)}, where the N constellation point modulation symbols are divided into two groups of modulation symbols, the phase difference between the two groups of modulation symbols is a preset angle, n is an integer from 0 to N−1, and N is an even integer greater than or equal to 4; and transmitting, on a physical resource, data symbols obtained after modulation.

公开(公告)号：US20230216720A1

公开(公告)日：2023-07-06

申请号：US18008543

申请日：2021-05-27

申请人： ZTE CORPORATION

发明人： Yu XIN ,  Tong BAO ,  Jin XU ,  Guanghui YU ,  Liujun HU

IPC分类号： H04L27/26 ,  H04L27/34

CPC分类号： H04L27/2617 ,  H04L27/3411

摘要： Provided are a data modulation method and apparatus, a device, and a storage medium. The data modulation method comprises: modulating data according to a configured constellation point modulation symbol S(n) set, wherein n is an integer between 0 and N - 1, and N is an even integer greater than or equal to 4; and transmitting the modulated data on a physical resource.

公开(公告)号：US20220353127A1

公开(公告)日：2022-11-03

申请号：US17864254

申请日：2022-07-13

申请人： ZTE Corporation

发明人： Yu XIN ,  Tong BAO ,  Jin XU ,  Guanghui YU ,  Liujun HU

IPC分类号： H04L27/26 ,  H04L1/00

摘要： Methods, apparatus, and systems for increasing spectral efficiency for transmissions with different numerologies. In one example aspect, a wireless communication method. The method includes operating, by a communication device, a first transmission band associated with a first numerology. The first transmission band comprises a first subcarrier spacing Δf1 and a first symbol length of T1 in time domain. The method includes operating, by the communication device, a second transmission band associated with a second numerology. The second transmission band comprises a second subcarrier spacing Δf2. The method also includes operating, by the communication device, a third transmission band positioned between the first transmission band and the second transmission band. The third transmission band comprises a subcarrier spacing equal to the second subcarrier spacing Δf2 and a symbol length equal to the first symbol length T1.

公开(公告)号：US20220271981A1

公开(公告)日：2022-08-25

申请号：US17740863

申请日：2022-05-10

申请人： ZTE Corporation

发明人： Yu XIN ,  Tong BAO ,  Jin XU ,  Guanghui YU ,  Liujun HU

IPC分类号： H04L27/26

摘要： This disclosure relates to methods and devices for configuring guard subcarriers in transmission subbands to reduce interband interference in a wireless communication network. In one implementation, the method may include determining that a first subcarrier spacing for a first radio frequency transmission band is less than a second subcarrier spacing for a second radio frequency transmission band, and the first radio frequency transmission band is close to the second radio frequency transmission band in frequency spectrum. The method may further include configuring a subcarrier of the first radio frequency transmission band as a guard subcarrier carrying dummy data when the first radio frequency transmission band and the second radio frequency transmission band are simultaneously used to transmit data loads.

公开(公告)号：US20220158758A1

公开(公告)日：2022-05-19

申请号：US17588056

申请日：2022-01-28

申请人： ZTE Corporation

发明人： Liguang LI ,  Jun XU ,  Jin XU

IPC分类号： H04L1/00

摘要： Provided are a data encoding method and device, a storage medium, and a processor. The method includes: obtaining data to be sent; performing quasi-cyclic low-density parity check (LDPC) encoding on the data to be sent to obtain an LDPC codeword sequence, and interleaving the LDPC codeword sequence to obtain an interleaved LDPC codeword sequence; performing cyclic bit selection on the interleaved LDPC codeword sequence from a starting position to obtain a rate-matched codeword sequence, where the starting position is determined according to a predetermined parameter; and sending the rate-matched codeword sequence. The solution above resolves the problem in the related art of unstable transmission after performing quasi-cyclic LDPC encoding on data to be transmitted, and achieves stable transmission after the quasi-cyclic LDPC encoding.

公开(公告)号：US20220085830A1

公开(公告)日：2022-03-17

申请号：US17486652

申请日：2021-09-27

申请人： ZTE Corporation

发明人： Liguang LI ,  Jun XU ,  Jin XU

IPC分类号： H03M13/11 ,  H03M13/03 ,  H03M13/00 ,  H04L1/00

摘要： A quasi-cyclic LDPC coding and decoding method and apparatus, and an LDPC coder and decoder. The method includes: determining from a mother basis matrix set a basis matrix used for low density parity check (LDPC) coding (S202), wherein the basis matrix used for LDPC coding includes a first-type element and a second-type element, the first-type element corresponds to an all-zero square matrix, the second-type element corresponds to a matrix obtained by means of a cyclic shift of a unit matrix according to a value of the second-type element, and dimensions of the all-zero square matrix and the unit matrix are equal; and performing LDPC coding on an information sequence to be coded according to the basis matrix used for LDPC coding, and/or performing LDPC decoding on a data sequence to be decoded according to the basis matrix used for LDPC coding (S204).

公开(公告)号：US20220069843A1

公开(公告)日：2022-03-03

申请号：US17510216

申请日：2021-10-25

申请人： ZTE Corporation

发明人： Liguang Li ,  Jun XU ,  Jin XU

IPC分类号： H03M13/11 ,  H04L1/00

摘要： Provided is a design method and apparatus for quasi-cyclic low-density parity-check (LDPC) encoding. The method includes: performing LDPC encoding on a K-bit information sequence to be encoded according to a parity check matrix of a quasi-cyclic LDPC code to obtain an N-bit LDPC encoded sequence, where the parity check matrix is determined according to a basic matrix and a lifting size Z, and the basic matrix is determined according to the lifting size Z and a coefficient matrix, where K is a positive integer, N is an integer greater than K, and Z is a positive integer.

公开(公告)号：US20210211222A1

公开(公告)日：2021-07-08

申请号：US17208153

申请日：2021-03-22

申请人： ZTE Corporation

发明人： Focai PENG ,  Jun XU ,  Jin XU ,  Mengzhu CHEN ,  Saijin XIE ,  Xuan MA ,  Cuihong HAN

IPC分类号： H04L1/00 ,  H03M13/00

摘要： Methods, systems, and devices related to wireless communication are described. A method of wireless communication includes determining respective starting points of data, in accordance with Polar encoding, that are associated with each Redundancy Version (RV) of a plurality of RVs and selecting data for transmission in accordance with at least one of the plurality of RVs.