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公开(公告)号：US20190173491A1
公开(公告)日：2019-06-06
申请号：US16272937
申请日：2019-02-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Gongzheng Zhang , Ying Chen , Rong Li , Chaolong Zhang , Yourui Huangfu , Huazi Zhang
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.
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公开(公告)号：US20190044655A1
公开(公告)日：2019-02-07
申请号：US16145850
申请日：2018-09-28
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jun Wang , Gongzheng Zhang , Huazi Zhang , Chen Xu , Lingchen Huang , Shengchen Dai , Hejia Luo , Yunfei Qiao , Rong Li , Jian Wang , Ying Chen , NIKITA POLIANSKII , MIKHAIL KAMENEV , Zukang Shen , Yourui HuangFu , Yinggang Du
IPC: H04L1/00
Abstract: This application relates to the field of wireless communications technologies, and discloses a polar code encoding method and apparatus, to improve accuracy of reliability calculation and ordering for polarized channels. The method includes: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the sequence numbers of the N polarized channels are arranged in the first sequence based on reliability of the N polarized channels, K is a positive integer, N is a mother code length of a polar code, N is a positive integer power of 2, and K≤N; selecting sequence numbers of K polarized channels from the first sequence in descending order of reliability; and placing the to-be-encoded bits based on the selected sequence numbers of the K polarized channels, and performing polar code encoding on the to-be-encoded bits.
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公开(公告)号：US12278702B2
公开(公告)日：2025-04-15
申请号：US18485303
申请日：2023-10-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jun Wang , Gongzheng Zhang , Huazi Zhang , Chen Xu , Lingchen Huang , Shengchen Dai , Hejia Luo , Yunfei Qiao , Rong Li , Jian Wang , Ying Chen , Nikita Andreevich Polianskii , Mikhail Sergeevich Kamenev , Zukang Shen , Yourui HuangFu , Yinggang Du
Abstract: This application relates to the field of wireless communications technologies, and discloses an encoding method and apparatus, to improve accuracy of reliability calculation and ordering for polarized channels. The method includes: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the first sequence is same as a second sequence or a subset of the second sequence, the second sequence comprises sequence numbers of Nmax polarized channels, and the second sequence is the sequence shown in Sequence Q11 or Table Q11, K is a positive integer, N is a positive integer power of 2, n is equal to or greater than 5, K≤N, Nmax=1024; selecting sequence numbers of K polarized channels from the first sequence; and performing polar code encoding on K the to-be-encoded bits based on the selected sequence numbers of the K polarized channels.
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公开(公告)号：US12218816B2
公开(公告)日：2025-02-04
申请号：US17886739
申请日：2022-08-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu Wang , Hejia Luo , Ying Chen , Rong Li , Bin Wang
IPC: H04W4/00 , H04L43/0864
Abstract: Embodiments of this application provide a timing advance determining method and a communication apparatus, to improve precision of calculating a timing advance (TA) by a terminal, and reduce inter-symbol interference (ISI). The method includes: A first network device determines a first parameter based on a first delay compensation value, where the first delay compensation value is a delay compensation made by the first network device for receiving a signal sent by a terminal, the first parameter indicates a difference between a round-trip delay of a feeder link in a non-terrestrial network NTN and the first delay compensation value, and the difference is used to determine a TA used by the terminal for signal sending; and the first network device sends the first parameter.
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公开(公告)号：US20240276473A1
公开(公告)日：2024-08-15
申请号：US18644885
申请日：2024-04-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ying Chen , Jianwei Zhou , Rong Li , Jun Wang
IPC: H04W72/0453 , H04B7/06 , H04W56/00 , H04W72/231 , H04W72/51
CPC classification number: H04W72/0453 , H04B7/0626 , H04W56/0015 , H04W72/231 , H04W72/51
Abstract: A terminal device receives first information from an access network device. The first information indicates that at least two frequency resources in a plurality of frequency resources are activated, and the plurality of frequency resources are preconfigured. Then, the terminal device performs a data transmission with the access network device on a first frequency resource. The at least two frequency resources indicated by the first information include the first frequency resource.
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Patent Agency Ranking
公开(公告)号：US20240196348A1
公开(公告)日：2024-06-13
申请号：US18424710
申请日：2024-01-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Yunfei Qiao , Jun Wang , Xinghua Song
IPC: H04W56/00 , H04W74/0833 , H04W84/06
CPC classification number: H04W56/0015 , H04W56/0035 , H04W74/0833 , H04W84/06
Abstract: This application provides an uplink signal synchronization method and a communication apparatus. A terminal device receives first indication information, where the first indication information indicates first duration, the first duration is validity duration of synchronization information, and the synchronization information is used for uplink signal synchronization. The terminal device performs the uplink signal synchronization based on second indication information within the first duration that is after reception of the second indication information, where the uplink signal synchronization includes time domain offset compensation and/or frequency domain offset compensation, and the second indication information indicates the synchronization information. This can improve communication reliability.
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公开(公告)号：US20230403069A1
公开(公告)日：2023-12-14
申请号：US18458161
申请日：2023-08-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yu Wang , Hejia Luo , Yunfei Qiao , Ying Chen , Xiaolu Wang , Rong Li
IPC: H04B7/185 , H04W64/00 , H04W72/0446
CPC classification number: H04B7/18513 , H04B7/18519 , H04W64/00 , H04W72/0446
Abstract: In a communication method, to meet a requirement of a positioning service, a first communication apparatus obtains data to be processed, and determines a first frame structure that includes a communication time period and a positioning time period. A first switching time period is included between the communication time period and the positioning time period, a 1st time-domain symbol occupied by the first switching time period is consecutive to a last time-domain symbol occupied by the communication time period, and a last time-domain symbol occupied by the first switching time is consecutive to a 1st time-domain symbol occupied by the positioning time period. The first communication apparatus then processes the data based on the first frame structure.
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公开(公告)号：US11770159B2
公开(公告)日：2023-09-26
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
CPC classification number: H04B7/01 , H04L5/0051 , H04W56/0035 , H04W56/0045
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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公开(公告)号：US20230262677A1
公开(公告)日：2023-08-17
申请号：US18301521
申请日：2023-04-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianwei Zhou , Yu Wang , Ying Chen , Hejia Luo , Chenlei Xu , Jun Wang
IPC: H04W72/044 , H04W48/08
CPC classification number: H04W72/046 , H04W48/08
Abstract: A bandwidth part switching method, is applicable to a non-terrestrial network (NTN) to implement BWP switching based on multi-color frequency-division multiplexing. In the method, a terminal device may report, in a second BWP to a network device, an index of a first SSB whose signal quality is greater than or equal to a first threshold in one or more SSBs in a first BWP, and switch from the second BWP to a third BWP. The one or more SSBs correspond to at least one BWP other than the first BWP, and the third BWP is in the at least one BWP and corresponds to the first SSB. After receiving the index of the first SSB in the second BWP, the network device determines the third BWP, and performs service data transmission with the terminal device in the third BWP.
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公开(公告)号：US11496238B2
公开(公告)日：2022-11-08
申请号：US17356837
申请日：2021-06-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ying Chen , Rongdao Yu , Yunfei Qiao , Hejia Luo , Rong Li
Abstract: A data transmission method and a communications device, the method including: determining, by a first communications device, a target data transmission mode, where the target data transmission mode is used to indicate a quantity of times that the first communications device transmits an encoded-bit combination to a second communications device and an encoded-bit combination transmitted each time, the encoded-bit combination transmitted each time may include one encoded bit sequence or a plurality of encoded bit sequences, where the encoded bit sequence is obtained by encoding all or some of K information bits, and K is a positive integer, and sending, by the first communications device, the encoded-bit combination to the second communications device in the target data transmission mode, and receiving, by the second communications device, the encoded-bit combination sent by the first communications device, and decoding the encoded bit sequence included in the encoded-bit combination.
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