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公开(公告)号：US12149396B2
公开(公告)日：2024-11-19
申请号：US17738863
申请日：2022-05-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianwei Zhou , Chenlei Xu , Hejia Luo , Xiaolu Wang
IPC: H04L27/26 , H04W56/00 , H04W74/0833
Abstract: A terminal apparatus is provided. The terminal apparatus obtains synchronization signal and physical broadcast channel (PBCH) blocks (SSBs) in a plurality of beams; then determines a target beam in the plurality of beams based on an association relationship between an SSB index and a first random access preamble, where the first random access preamble is determined based on a cyclic shift and/or an order of symbols; and finally sends the random access preamble by using the target beam to initiate a random access request. A communication device receives the first random access preamble in the random access request sent by the terminal apparatus, and then, determines, based on the association relationship, the target beam accessed by the terminal apparatus. The first random access preamble is determined based on the cyclic shift and/or the order of symbols.
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公开(公告)号：US12101669B2
公开(公告)日：2024-09-24
申请号：US17702958
申请日：2022-03-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yu Wang , Yunfei Qiao , Rong Li , Jianwei Zhou , Hejia Luo
CPC classification number: H04W36/0055 , H04B7/18513 , H04W36/0061 , H04W48/12
Abstract: The technology of this application relates to an information transmission method, an apparatus, and a system. The method includes user equipment receives first indication information sent by a first network device, where the first indication information includes a polarization method of a target cell, and the user equipment performs cell measurement on the target cell based on the polarization method of the target cell. According to the method, the user equipment can obtain the polarization method of the target cell before entering the target cell. In this way, when performing cell handover and reselection, the user equipment can enable, based on the polarization method of the target cell, only a port corresponding to the polarization method of the target cell, to receive a satellite signal, and perform cell measurement on the target cell, to complete cell handover and reselection procedures.
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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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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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Patent Agency Ranking
公开(公告)号：US12120566B2
公开(公告)日：2024-10-15
申请号：US17704733
申请日：2022-03-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei Zhou , Hejia Luo , Chenlei Xu , Xiaolu Wang
IPC: H04W36/06 , H04W56/00 , H04W72/0446 , H04W72/21
CPC classification number: H04W36/06 , H04W56/003 , H04W72/0446 , H04W72/21
Abstract: This application provides example satellite communication methods and example apparatuses. One example method includes receiving, by a terminal device, first information sent by a satellite, where the first information indicates a first timing change rate range. The terminal device can then measure a downlink timing change rate to obtain a first downlink timing change rate. The terminal device can then determine a first uplink timing change rate based on the first downlink timing change rate and the first timing change rate range. The terminal device can then perform uplink communication with the satellite based on the first uplink timing change rate.
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公开(公告)号：US20230217397A1
公开(公告)日：2023-07-06
申请号：US18182164
申请日：2023-03-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei Zhou , Ying Chen , Xiaolu Wang , Chenlei Xu , Hejia Luo , Yunfei Qiao
IPC: H04W56/00
CPC classification number: H04W56/0045
Abstract: Embodiments of this application relate to the field of communication technologies, and provide a timing offset parameter update method, a device, and a system, to help reduce signaling overheads when a terminal device updates a value of a timing offset parameter. The method includes: A terminal device obtains a timing advance adjustment variation corresponding to the terminal device, where the timing advance adjustment variation is a difference between a timing advance adjustment amount currently used by the terminal device and a timing advance adjustment amount used at a previous moment. The terminal device determines whether an absolute value of the timing advance adjustment variation is greater than or equal to a first threshold. If the absolute value is greater than or equal to the first threshold, the terminal device sends, to a network device, first indication information used to indicate an update regularity of a timing offset parameter.
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公开(公告)号：US20230156640A1
公开(公告)日：2023-05-18
申请号：US18156606
申请日：2023-01-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhenjun JIANG , Hejia Luo , Yunfei Qiao , Jianwei Zhou , Chenlei Xu
CPC classification number: H04W56/001 , H04L27/2605
Abstract: This application provides a communication method and apparatus and a computer-readable storage medium. The method includes: receiving one or more synchronization information blocks SSBs; determining, based on a first SSB and/or a second SSB, a network type corresponding to the one or more SSBs; and determining an access network based on the network type. According to technical solutions provided in this application, a network type of an access network can be accurately identified in a frequency sweep stage.
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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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公开(公告)号：US12119972B2
公开(公告)日：2024-10-15
申请号：US17706291
申请日：2022-03-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei Zhou , Chenlei Xu , Hejia Luo , Jun Wang
CPC classification number: H04L27/26025 , H04L27/2607 , H04W16/28 , H04W84/06
Abstract: Example signal transmission methods based on satellite communication and apparatus are described. One example method includes: obtaining, by a communication device, carrier attribute information corresponding to a target carrier used to transmit an orthogonal frequency division multiplexing (OFDM) symbol. The carrier attribute information of the target carrier includes subcarrier spacing. The communications device determines a cyclic prefix (CP) length of the OFDM symbol based on the carrier attribute information of the target carrier and a preset correspondence between carrier attribute information and the OFDM symbol. The CP is used to carry first data. The first data is data in the OFDM symbol.
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