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121.发明公开公开(公告)号：US20230421291A1
公开(公告)日：2023-12-28
申请号：US18464337
申请日：2023-09-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xianbin Wang , Yuan Li , Huazi Zhang , Rong Li , Jun Wang
IPC: H04L1/00
CPC classification number: H04L1/0057
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.
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公开(公告)号：US11843461B2
公开(公告)日：2023-12-12
申请号：US17716402
申请日：2022-04-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia Luo , Yinggang Du , Rong Li , Lingchen Huang , Ying Chen
IPC: H04L1/00
CPC classification number: H04L1/0057 , H04L1/0071
Abstract: Embodiments of this application provide a method for coding in a wireless communication network. A communication device interleave a first bit sequence to obtain a first interleaved sequence having sequence number starting with a sequence number of 0, wherein the first bit sequence comprises bits for indicating timing, wherein the bits for indicating timing comprises a set of bits for indicating synchronization signal block index (SSBI); wherein the set of bits for indicating SSBI are placed in positions indicated by sequence numbers of 2, 3 and 5 in the first interleaved sequence. The devices add d first CRC bits on the first interleaved sequence to obtain a second bit sequence, interleave on the second bit sequence according to an interleave pattern to obtain a second interleaved sequence, and polar encode the second interleaved sequence to obtain the encoded sequence.
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公开(公告)号：US20230319632A1
公开(公告)日：2023-10-05
申请号：US18308423
申请日：2023-04-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tianhang Yu , Jian Wang , Chen Xu , Gongzheng Zhang , Rong Li , Jun Wang
CPC classification number: H04W28/06 , G06N7/01 , H04L1/0036
Abstract: A data transmission method and apparatus are described. The method includes a receive end receiving a first parameter, where the first parameter includes a parameter of a probability distribution of a hidden variable. The hidden variable is obtained by encoding first data by using an encoder of a variational auto-encoder. The receive end determines the probability distribution based on the first parameter, and samples the probability distribution M times to obtain M pieces of sampled data, where M is a positive integer. The receive end reconstructs the first data based on the M pieces of sampled data. According to the described data transmission method and apparatus, the first parameter is transmitted, so that the receive end can support a plurality of times of sampling, thereby reducing an amount of data transmitted over an air interface, and reducing data transmission overhead.
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124.发明授权公开(公告)号：US11695609B2
公开(公告)日：2023-07-04
申请号：US17514562
申请日：2021-10-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaolu Wang , Hejia Luo , Rong Li , Bin Wang , Jun Wang
IPC: H04L27/26
CPC classification number: H04L27/2621 , H04L27/265 , H04L27/2628
Abstract: A side information transmission method and apparatus, where data to be transmitted by a transmit end includes at least one first data sub-block and at least one second data sub-block. A first modulated signal is obtained based on a first phase rotation factor. A second modulated signal is obtained based on a second phase rotation factor. Side information is generated based on the first phase rotation factor and the second phase rotation factor. The first data sub-block is carried on a first subcarrier, and the side information is also mapped to the first carrier. The first modulated signal corresponding to the at least one first data sub-block, the second modulated signal corresponding to the at least one second data sub-block, and a modulated signal corresponding to the side information are superposed to obtain a to-be-transmitted signal.
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公开(公告)号：US11695435B2
公开(公告)日：2023-07-04
申请号：US16929621
申请日：2020-07-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Hejia Luo , Gongzheng Zhang , Rong Li , Jun Wang
CPC classification number: H03M13/6362 , H03M13/13 , H04L1/0013 , H04L1/0061 , H04L5/0055
Abstract: This application discloses a data transmission method, apparatus, and system. The method includes: generating a to-be-sent bit sequence, where the to-be-sent bit sequence includes one or more bits in a bit sequence having a length of (N−M), where N is a length of a mother code for polar encoding, M is a length of encoded bits obtained after rate matching is performed on a bit sequence having a length of N, N is m raised to the power of an integer, m is a positive integer greater than 1, M is a positive integer, and N>M; and sending the generated bit sequence. A corresponding apparatus and system are further disclosed. In this application, in this data transmission solution, an additional coding gain is generated during decoding, so that a decoding FER is reduced, and decoding performance is improved.
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Patent Agency Ranking
公开(公告)号：US20230171634A1
公开(公告)日：2023-06-01
申请号：US18153606
申请日：2023-01-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jian Wang , Chen Xu , Tianhang Yu , Rong Li , Jun Wang
IPC: H04W24/10 , H04W8/22 , H04W72/20 , H04W72/0446 , H04W72/0453
CPC classification number: H04W24/10 , H04W8/22 , H04W72/20 , H04W72/0446 , H04W72/0453
Abstract: This application provides a communication method and apparatus. The method may include: A first communication apparatus receives configuration information of a first neural network; the first communication apparatus determines the first neural network based on the configuration information of the first neural network; the first communication apparatus obtains first channel information based on channel information obtained through measurement and the first neural network, where a data amount of the first channel information is less than a data amount of the channel information obtained through measurement; and the first communication apparatus sends the first channel information, where the first channel information is used to obtain second channel information by using a second neural network, and the second channel information is used for data transmission.
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公开(公告)号：US20230139924A1
公开(公告)日：2023-05-04
申请号：US18148438
申请日：2022-12-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunfei Qiao , Xiaolu Wang , Rong Li
Abstract: A cell selection method and apparatus. The method includes receiving, by a terminal, a handover command, where the handover command includes indication information indicating a polarization direction of a target cell to be accessed by the terminal, performing, by the terminal, cell handover based on the handover command.
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公开(公告)号：US11569930B2
公开(公告)日：2023-01-31
申请号：US17143665
申请日：2021-01-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian Wang , Lingchen Huang , Yunfei Qiao , Rong Li , Jun Wang , Yinggang Du , Yiqun Ge
IPC: H04L1/00
Abstract: This application provides a method for communicating a modulation and coding scheme (MCS). A terminal device obtains a modulation order, a code rate, or a spectral efficiency, determines an index of a reference MCS from a mapping table based on the obtained modulation order, code rate, or spectral efficiency, and reports the index of the reference MCS to a network device. The mapping table includes one or more mapping relationships between an MCS index and a modulation order, a code rate, or a spectral efficiency. The terminal device may process uplink or downlink data based on the determined MCS, thereby improving data transmission reliability.
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公开(公告)号：US11539457B2
公开(公告)日：2022-12-27
申请号：US17174794
申请日：2021-02-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng Zhang , Hejia Luo , Rong Li , Ying Chen , Yunfei Qiao
Abstract: Embodiments of the application provide a method for rate matching in a wireless communication network. A device obtains K information bits and a target code length M of a polar code, determines, according to a minimum value of a set of values, a mother code length N1, polar encodes the K information bits to obtain an encoded sequence of N1 bits, obtains a target sequence of M bits from the N1 bit encoded sequence, and outputs the M-bit target sequence. When the mother code length N1 is larger than the target code length M, (N1−M) bits of the encoded sequence are punctured or shortened from the N1 bit encoded sequence.
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公开(公告)号：US20220376743A1
公开(公告)日：2022-11-24
申请号：US17882200
申请日：2022-08-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ying Chen , Jianwei Zhou , Hejia Luo , Xiaolu Wang , Rong Li , Jun Wang
Abstract: This application discloses a frequency compensation method and apparatus, to improve performance of frequency compensation. The method includes: determining a change rate of a Doppler frequency shift value based on a weighted change rate of a change rate of a timing advance TA, determining the Doppler frequency shift value based on the change rate of the Doppler frequency shift value, and performing frequency compensation based on the determined Doppler frequency shift value; or determining a frequency offset value based on the Doppler frequency shift value with reference to pre-compensation and based on a reference signal, to further determine a frequency offset value, and performing frequency compensation based on the frequency offset value.
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