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公开(公告)号：US20230283350A1
公开(公告)日：2023-09-07
申请号：US18315431
申请日：2023-05-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Jianwei ZHOU , Hejia LUO , Yu WANG , Jun WANG
IPC: H04B7/06 , H04L5/00 , H04B17/318
CPC classification number: H04B7/0639 , H04L5/0051 , H04B17/328
Abstract: Embodiments of this application provide a channel matrix determining method, an apparatus, and a system, relating to the field of communication technologies, to resolve a technical problem that a manner in which a network device determines a precoding matrix based on an existing PMI indicator is not applicable to long-distance communication. The method includes: A terminal device obtains a plurality of reference signals, determines a first channel matrix based on the plurality of reference signals, and feeds back, to a network device, first information indicating some channel elements in the first channel matrix. The terminal device may further receive a downlink signal determined based on the first information and sent by the network device. A channel element in the some channel elements is determined based on signal strength and/or a time-frequency resource of the reference signal.
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公开(公告)号：US20230156822A1
公开(公告)日：2023-05-18
申请号：US18156941
申请日：2023-01-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei ZHOU , Hejia LUO , Chenlei XU , Zhenjun JIANG
IPC: H04W74/08
CPC classification number: H04W74/0841 , H04W74/0891
Abstract: This application discloses random access methods and communication apparatuses, and relates to the field of communication technologies. In an example method, after determining a correspondence between scanning periods of different scanning areas within coverage of a synchronization signal block (SSB) beam and random access occasions (ROs), a second communication apparatus sends, through broadcasting, a first message including information about the correspondence. A first communication apparatus receives the first message, determines an RO based on a scanning area in which the first communication apparatus is located and the first message, and initiates random access.
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公开(公告)号：US20240236899A1
公开(公告)日：2024-07-11
申请号：US18430323
申请日：2024-02-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenlei XU , Jianwei ZHOU , Zhenjun JIANG , Hejia LUO
CPC classification number: H04W56/005 , H04W56/0035 , H04W56/009 , H04W84/06
Abstract: This application provides a timing advance update method, a terminal, and a base station. One example method includes receiving, a TA value; obtaining, a common TA change rate, and compensating for the TA value based on the common TA change rate; and sending an uplink signal based on a TA value obtained after compensation is performed.
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公开(公告)号：US20220286948A1
公开(公告)日：2022-09-08
申请号：US17825787
申请日：2022-05-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia LUO , Xiaolu WANG , Jianwei ZHOU , Chenlei XU , Ying CHEN , Rong LI
Abstract: The present disclosure relates to access methods and apparatuses. In one example method, a terminal device determines, based on whether a first frequency offset parameter is in a frequency offset parameter range, whether to access a first cell. If the first frequency offset parameter is in the frequency offset parameter range, a current location of the terminal device is not at an edge of the cell. Otherwise, the current location of the terminal device may be at the edge of the cell.
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公开(公告)号：US20220263701A1
公开(公告)日：2022-08-18
申请号：US17738863
申请日：2022-05-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianwei ZHOU , Chenlei XU , Hejia LUO , Xiaolu WANG
Abstract: This application discloses a beam establishment method. A terminal apparatus obtains synchronization signal and 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. According to embodiments of this application, the first random access preamble is determined based on the cyclic shift and/or the order of symbols.
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Patent Agency Ranking
公开(公告)号：US20220263570A1
公开(公告)日：2022-08-18
申请号：US17737840
申请日：2022-05-05
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Hejia LUO , Chenlei XU , Jianwei ZHOU , Xueliang SHI
Abstract: The disclosure provides satellite communication methods and related devices. One example method includes that a device receives a first common timing advance (TA) parameter and a first common TA change amount calculation parameter, where the first common TA parameter is used to obtain a first common TA, and the first common TA change amount calculation parameter is used to update the first common TA to obtain an updated common TA. The device sends a random access preamble by using the updated common TA.
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公开(公告)号：US20220224405A1
公开(公告)日：2022-07-14
申请号：US17707642
申请日：2022-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei ZHOU , Yunfei QIAO , Hejia LUO , Chenlei XU
IPC: H04B7/185
Abstract: The present disclosure relates to beam handover methods, apparatuses, and communications devices. In one example method, a terminal device receives first indication information sent by a network device, where the first indication information includes a first parameter value of a first beam, and the first parameter value is a compensation amount of a frequency offset of the first beam generated by relative motion between the terminal device and the network device. The terminal device calculates a receive frequency or a transmit frequency of the first beam based on the first parameter value.
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公开(公告)号：US20220217600A1
公开(公告)日：2022-07-07
申请号：US17704733
申请日：2022-03-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei ZHOU , Hejia LUO , Chenlei XU , Xiaolu WANG
Abstract: This application provides a satellite communication method and an apparatus. The method includes: receiving, by a terminal device, first information sent by a satellite, where the first information is used to indicate a first timing change rate range; measuring and obtaining, by the terminal device, a first downlink timing change rate; determining a first uplink timing change rate based on the first downlink timing change rate and the first timing change rate range; and performing uplink communication with the satellite based on the first uplink timing change rate. The method can effectively resolve a problem of uplink timing drift and improve uplink performance.
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公开(公告)号：US20220217589A1
公开(公告)日：2022-07-07
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
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：US20250062887A1
公开(公告)日：2025-02-20
申请号：US18939007
申请日：2024-11-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Jianwei ZHOU , Jun WANG , Dali QIN , Yinggang DU
IPC: H04L5/14 , H04W72/0446
Abstract: This application provides a resource configuration method and a related apparatus. The method includes: A first terminal device receives first configuration information used to configure a first time division duplex frame structure. Because an interval between adjacent uplink time domain resources in the first time division duplex frame structure is determined based on a largest timing advance and a smallest timing advance in a terminal device that uses the first time division duplex frame structure, and the terminal device that uses the first time division duplex frame structure includes the first terminal device, after the first terminal device sends uplink data on a first uplink time domain resource in the first time division duplex frame structure by using a first timing advance, when the uplink data arrives at a network device, a time domain resource that can be used by the network device is an uplink time domain resource.
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