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公开(公告)号：US20240275473A1
公开(公告)日：2024-08-15
申请号：US18647056
申请日：2024-04-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yu WANG , Hejia LUO , Yunfei QIAO , Ying CHEN , Ruonan YANG
CPC classification number: H04B7/18519 , H04W36/083
Abstract: A first satellite obtains a parameter for determining an elevation angle for a departure service of the first satellite in a first serving cell. The first satellite sends first indication information to a terminal device, where the first indication information indicates the elevation angle for the departure service of the first satellite in the first serving cell in which the terminal device is located. The terminal device determines an elevation angle of the terminal device relative to the first satellite based on an ephemeris and location information of the terminal device. The terminal device determines the elevation angle for the departure service based on the first indication information, and compares the elevation angle for the departure service with the elevation angle of the terminal device relative to the first satellite, to determine whether to perform satellite reselection or handover.
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公开(公告)号：US20240291557A1
公开(公告)日：2024-08-29
申请号：US18649666
申请日：2024-04-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Feiran ZHAO , Ruonan YANG , Jun WANG , Jianwei ZHOU
IPC: H04B7/185
CPC classification number: H04B7/18539 , H04B7/1855 , H04B7/18589
Abstract: A terminal device receives first information, where the first information is for determining first duration, the first duration indicates duration from a moment at which a first beam stops a service to a moment from which a second beam provides a service, and the first beam and the second beam are beams on satellites. The terminal device communicates with a network device by using the second beam based on the first duration.
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公开(公告)号：US20240155528A1
公开(公告)日：2024-05-09
申请号：US18413122
申请日：2024-01-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Ruonan YANG , Jun WANG
CPC classification number: H04W56/0045 , H04W24/02 , H04W84/06
Abstract: Embodiments of this application provide a communication method and a communication apparatus, to determine a TA between a first communication apparatus and a second communication apparatus based on TA information between the first communication apparatus and a target reference point, so as to determine TAs between different communication apparatuses in a satellite communication system. In the method, the first communication apparatus first determines the target reference point; the first communication apparatus determines information about a first TA, where the information about the first TA indicates the TA information between the first communication apparatus and the target reference point; and then the first communication apparatus sends first information, where the first information includes the information about the first TA.
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公开(公告)号：US20240031012A1
公开(公告)日：2024-01-25
申请号：US18475456
申请日：2023-09-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ruonan YANG , Ying CHEN , Rong LI , Jun WANG , Yinggang DU , Yu WANG , Yunfei QIAO
CPC classification number: H04B7/18513 , H04W74/0833 , H04B7/18519
Abstract: A wireless communication includes determining, by a satellite, at least one first signal, sending the at least one first signal to a terminal based on at least one first beam, and receiving a random access request from the terminal. Each first signal of the at least one first signal corresponds to one first beam of the at least one first beam. Each first signal of the at least one first signal includes information about a first geographical location of a center point of the one first beam of the at least one first beam corresponding to each first signal of the at least one first signal. The information about the first geographical location is useable to determine a second beam from the at least one first beam. The random access request includes an identifier of the second beam.
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