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公开(公告)号：US20220264417A1
公开(公告)日：2022-08-18
申请号：US17738810
申请日：2022-05-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei ZHOU , Hejia LUO , Chenlei XU , Xiaolu WANG , Jun WANG
Abstract: The present disclosure relates to network switching methods and apparatuses. in one example method, a beam that currently provides a service for a terminal device is a first beam. The first beam is generated by a first network device. The first network device obtains user information of the terminal device, and obtains switching information based on the user information. After the first network device sends the switching information to the terminal device, the terminal device can perform beam switching based on the switching information.
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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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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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Patent Agency Ranking
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：US20220174610A1
公开(公告)日：2022-06-02
申请号：US17673539
申请日：2022-02-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yunfei QIAO , Yinggang DU , Chenlei XU
Abstract: This application discloses an uplink power control method and an apparatus that are applicable to a non-terrestrial network. The uplink power control method includes: A ground terminal device receives uplink power control information that includes power adjustment information, where the power adjustment information is used to compensate for a power deviation caused by a transmission delay of a satellite communication link; and then, the terminal device determines uplink transmit power based on the uplink power control information, and transmits a signal based on the power. This method is easy to implement. An existing mechanism is adaptively adjusted based on a feature of a satellite link to meet an actual transmit power requirement of the terminal device in this scenario.
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公开(公告)号：US20230247576A1
公开(公告)日：2023-08-03
申请号：US18191591
申请日：2023-03-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia LUO , Xiaolu WANG , Jianwei ZHOU , Ying CHEN , Chenlei XU , Jun WANG
IPC: H04W56/00 , H04W72/0453 , H04W72/1268
CPC classification number: H04W56/0035 , H04W72/0453 , H04W72/1268
Abstract: Example frequency compensation methods and apparatus are described. One example method includes determining first information and sending the first information by a network device to a terminal device, where the first information indicates a frequency compensation manner of an uplink signal of the terminal device or the first information indicates a configuration parameter of the terminal device. The terminal device receives the first information, and determines, based on the first information, the frequency compensation manner to be used to send the uplink signal. The terminal device performs frequency compensation for the uplink signal based on the frequency compensation manner.
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公开(公告)号：US20220330350A1
公开(公告)日：2022-10-13
申请号：US17832880
申请日：2022-06-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Hejia LUO , Jianwei ZHOU , Chenlei XU , Bin WANG , Rong LI
Abstract: The present disclosure relates to random access preamble transmission methods, apparatuses, and storage mediums. In one example method, a terminal device determines, based on a target sub-coverage area to which the terminal device belongs in a preset coverage area of a network device, target random access preamble format information corresponding to the target sub-coverage area. Then, the terminal device sends, to the network device on a target time-frequency resource indicated by target random access preamble time-frequency resource information corresponding to the target random access preamble format information, a random access preamble corresponding to the target random access preamble format information.
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