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公开(公告)号：US20240365200A1
公开(公告)日：2024-10-31
申请号：US18767646
申请日：2024-07-09
CPC分类号： H04W36/322 , H04W36/083
摘要： A communication method and apparatus are provided. The method includes: A terminal device obtains first information, where the first information is used for mobility management of ascending-orbit and descending-orbit cells, and the first information is related to a latitude location. The terminal device performs the mobility management based on the first information. According to the method, in a scenario of ascending-orbit and descending-orbit cells in a satellite network, mobility management does not need to be frequently performed with frequency switching of ascending and descending orbits. In this way, efficiency of the mobility management of the terminal device can be improved, and system signaling overheads can also be reduced.
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公开(公告)号：US20240333576A1
公开(公告)日：2024-10-03
申请号：US18732486
申请日：2024-06-03
发明人： Jiajie Tong , Xianbin Wang , Huazi Zhang , Rong Li , Jun Wang
CPC分类号： H04L27/366 , H04L27/3444 , H04L27/361
摘要： A communication method and apparatus is provided so that a fading channel can implement a good error correction capability. This helps improve information transmission reliability. The method includes: a transmit end device determines, based on N bit sets, a first sequence and a second sequence that are obtained through quadrature amplitude modulation QAM. The first sequence includes N in-phase components, and the second sequence includes N quadrature components; or the first sequence includes N quadrature components, and the second sequence includes N in-phase components, where N is an integer greater than or equal to 2. Then, the transmit end device performs interleaving processing on the first sequence, to obtain a third sequence. Then, the transmit end device sends, to a receive end device, a symbol sequence determined based on the second sequence and the third sequence. The symbol sequence includes N QAM symbols.
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公开(公告)号：US20240333427A1
公开(公告)日：2024-10-03
申请号：US18741363
申请日：2024-06-12
发明人： Shengchen Dai , Huazi Zhang , Xianbin Wang , Rong Li , Jun Wang
IPC分类号： H04L1/00 , H03M13/13 , H04L1/1812
CPC分类号： H04L1/0067 , H03M13/13 , H04L1/1812
摘要： This application provides a rate matching method, including: A transmitter obtains a to-be-coded bit sequence; the transmitter performs polar coding on the to-be-coded bit sequence, to obtain a first bit sequence, where a length of the first bit sequence is N; the transmitter performs first rate matching on the first bit sequence, to obtain a second bit sequence, where a length of the second bit sequence is E1; the transmitter sends the second bit sequence; the transmitter performs polar coding based on the to-be-coded bit sequence, to obtain a third bit sequence, where a length of the third bit sequence is 2*N; the transmitter performs second rate matching on the third bit sequence, to obtain a fourth bit sequence, and the transmitter sends the fourth bit sequence, where N, E1 are positive integers.
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公开(公告)号：US20240214329A1
公开(公告)日：2024-06-27
申请号：US18431054
申请日：2024-02-02
发明人： Gongzheng Zhang , Chen Xu , Jian Wang , Rong Li , Jun Wang
IPC分类号： H04L49/552 , H04L25/02
CPC分类号： H04L49/552 , H04L25/0254
摘要： This application discloses a data processing method and an apparatus. The method includes: after obtaining first data, a first communication apparatus processes the first data based on a first parameter, to obtain a first transmission symbol, and sends the first transmission symbol to a second communication apparatus. Correspondingly, the second communication apparatus receives the first transmission symbol. The second communication apparatus processes the first transmission symbol based on the first parameter to obtain an input of a neural network, and processes the input by using the neural network to obtain a processing result. The first parameter is determined based on first accuracy and first channel information, the first channel information is information about a channel between the first communication apparatus and the second communication apparatus, and the first accuracy indicates accuracy of processing data by the neural network.
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公开(公告)号：US20240137111A1
公开(公告)日：2024-04-25
申请号：US18400101
申请日：2023-12-29
发明人： Jingwei Zhang , Tianhang Yu , Hejia Luo , Shengchen Dai , Yunfei Qiao , Rong Li , Jun Wang
IPC分类号： H04B7/185
CPC分类号： H04B7/18532
摘要： This application discloses a NB-IoT-based communication method and an apparatus, to evolve a NB-IoT communication technology into an NTN. The method is as follows: A terminal device generates an uplink signal, including a superframe which includes a synchronization sequence located in first duration of the superframe and a data frame located in second duration which is after the first duration, the synchronization sequence successively includes a first sequence repeated Ni times and a second sequence repeated N2 times, the second sequence is obtained by multiplying the first sequence by −1, a part of consecutive sequences of the synchronization sequence are used as a first synchronization reference sequence that is obtained based on the second sequence repeated N2 times and one or more first sequences that are sorted from back to front in the first sequence repeated N1 times. The terminal device sends the uplink signal to a network device.
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公开(公告)号：US20230387939A1
公开(公告)日：2023-11-30
申请号：US18366757
申请日：2023-08-08
发明人： Huazi Zhang , Wen Tong , Jun Wang , Rong Li , Jiajie Tong , Xianbin Wang
IPC分类号： H03M13/11
CPC分类号： H03M13/118 , H03M13/1174
摘要： 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.
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公开(公告)号：US20230370148A1
公开(公告)日：2023-11-16
申请号：US18360842
申请日：2023-07-28
发明人： Bin Hu , Jian Wang , Chuili Kong , Rong Li
IPC分类号： H04B7/06
CPC分类号： H04B7/06952 , H04B7/0632
摘要： This disclosure provides a beam management method and apparatus, to quickly implement beam alignment. The beam management method is applied to a first device and includes: obtaining a first reference signal sent by a second device based on a first set beam, and determining a first beam based thereon such that a signal quality of the first reference signal obtained by the first device based on the first beam is the best; and sending a second reference signal to the second device based on the first beam, where the second reference signal is used to determine a second beam of the second device, and a signal quality of the second reference signal obtained by the second device based on the second beam is the same as that of the first reference signal obtained by the first device based on the first beam.
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公开(公告)号：US11777532B2
公开(公告)日：2023-10-03
申请号：US17587425
申请日：2022-01-28
发明人： Shengchen Dai , Huazi Zhang , Xianbin Wang , Lingchen Huang , Rong Li , Yunfei Qiao
IPC分类号： H03M13/00
CPC分类号： H03M13/616
摘要： 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.
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公开(公告)号：US20230308219A1
公开(公告)日：2023-09-28
申请号：US18041780
申请日：2021-02-08
发明人： Ying Chen , Hejia Luo , Yunfei Qiao , Rong Li , Jun Wang
IPC分类号： H04L1/1812
CPC分类号： H04L1/1812
摘要： Embodiments of this application disclose a data transmission method, apparatus, and system, and relate to the communication field. This can flexibly configure a HARQ process to improve a data transmission throughput. A specific solution is: A network device sends a first transport block and a first identifier to a terminal. The first identifier is used to indicate whether to switch, from non-hybrid automatic repeat request HARQ transmission to HARQ transmission, a HARQ process in which the first transport block is located. The first identifier is occupied when the HARQ process uses the HARQ transmission. The terminal receives the first transport block and the first identifier from the network device. The first identifier is used to indicate whether to switch, from the non-hybrid automatic repeat request HARQ transmission to the HARQ transmission, the HARQ process in which the first transport block is located.
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公开(公告)号：US20230308117A1
公开(公告)日：2023-09-28
申请号：US18176217
申请日：2023-02-28
发明人： Huazi Zhang , Xianbin Wang , Jiajie Tong , Shengchen Dai , Rong Li , Jun Wang
CPC分类号： H03M13/152 , H03M13/616 , H03M13/6362
摘要： 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.
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