公开(公告)号：US20190394068A1

公开(公告)日：2019-12-26

申请号：US16423056

申请日：2019-05-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuefei SONG ,  Yinben XIA ,  Chao CHEN

IPC: H04L12/64 ,  H04L12/715

Abstract: This application discloses a flow entry generating method and apparatus. The method includes: receiving a service path establishment request, where the service path establishment request includes a constraint, a source device, and a target device; finding, in a data transmission network according to a cross-layer information model, a service path that meets the constraint and is from the source device to the target device, where the cross-layer information model is a model that describes, at a same layer, an overall topology relationship between an IP layer and an optical layer; and generating a respective corresponding flow entry for each forwarding device in the service path, and sending the flow entry to a corresponding forwarding device. This application can greatly reduce time complexity of computing the service path, and improve efficiency of computing the service path, thereby improving efficiency of generating a flow entry.

公开(公告)号：US20230076232A1

公开(公告)日：2023-03-09

申请号：US17985333

申请日：2022-11-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shangbin FAN ,  Pengwei MA ,  Chao CHEN ,  Tao GONG ,  Hongli WANG

IPC: H01B11/10 ,  H04N7/10 ,  H04N5/232

Abstract: A data transmission cable (100) includes: a signal bundle (110), where the signal bundle (110) includes at least three signal cables, the at least three signal cables are disposed at intervals, pairwise signal cables form a differential pair signal cable, and the differential pair signal cable is used to transmit a differential data signal; a ground cable (120), where the ground cable (120) encircles and covers the signal bundle (110), and the ground cable (120) is used to transmit a ground signal and isolate the signal bundle (110) from a signal bundle (110) of another data transmission cable (100); and a filling medium (130), where the filling medium (130) is disposed in space on an inner side of the ground cable (120) except the signal cable ,so that a problem that a MIPI bus has poor transmission quality and a short transmission distance can be resolved.

公开(公告)号：US20210204181A1

公开(公告)日：2021-07-01

申请号：US17201974

申请日：2021-03-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chao CHEN ,  Li HU ,  Zhongli ZHANG

IPC: H04W36/00 ,  H04W36/32 ,  H04W12/041 ,  H04W12/037 ,  H04W76/27

Abstract: Example wireless communication methods and apparatus are described. One example method includes a terminal initiates a reestablishment procedure when a handover procedure of the terminal fails. When a base station reselected by the terminal is a base station (that is, a target base station) to which the terminal is handed over in a handover procedure, and because a key of the base station is updated in the handover procedure, the base station includes key derivation information in a reestablishment message to be sent to the terminal. Therefore, the terminal can update a key of the terminal based on the key derivation information, so that the key of the terminal can be consistent with the key of the base station.