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公开(公告)号：US20230199487A1
公开(公告)日：2023-06-22
申请号：US17925580
申请日：2021-04-23
Inventor： Rui SHI , Xibo Yu , Wei Zhou , Tianyan Wang
IPC: H04W12/0433 , H04W12/0431
CPC classification number: H04W12/0433 , H04W12/0431
Abstract: A key update method, a network device, a system, and a storage medium, applied to a Bluetooth mesh network. The Bluetooth mesh network includes at least two mesh nodes. A configuration node is a mesh node in the Bluetooth mesh network, and the configuration node is configured to configure a network key of the Bluetooth mesh network. The configuration node determines a first mesh node from mesh nodes in the Bluetooth mesh network, where a network key locally maintained by the first mesh node is inconsistent with a current network key of the Bluetooth mesh network. Therefore, the configuration node encrypts the first network key by using a device key of the first mesh node, to obtain a first ciphertext, and sends a first message that carries the first ciphertext, so that the first mesh node obtains the first network key.
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公开(公告)号：US20200303832A1
公开(公告)日：2020-09-24
申请号：US16898671
申请日：2020-06-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qingming XIE , Long LI , Guoliang CAO , Rui SHI , Yang GENG
Abstract: An antenna unit and an antenna array. The antenna unit includes M layers of cross metal patches, M layers of dielectric substrates, and a metal ground layer, where M is an integer greater than 1. In addition, an ith-layer dielectric substrate is disposed between an ith-layer cross metal patch and an (i+1)th-layer cross metal patch. The ith-layer cross metal patch, the ith-layer dielectric substrate, and the (i+1)th-layer cross metal patch are sequentially stacked, and i is an integer ranging from 1 to M−1. An Mth-layer cross metal patch, an Mth-layer dielectric substrate, and the metal ground layer are sequentially stacked. The antenna unit and the antenna array formed by units may have a good polarization feature, a relatively wide operating bandwidth, and a relatively good phase shift feature.
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公开(公告)号：US20240007851A1
公开(公告)日：2024-01-04
申请号：US18255059
申请日：2021-11-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04W12/037 , H04L12/28 , H04L9/14 , H04L9/08
CPC classification number: H04W12/037 , H04L12/282 , H04L9/14 , H04L9/088 , H04L2012/2841 , H04L2012/2849
Abstract: This disclosure provides methods and apparatuses relating to device control right obtaining. One method is applied to a system including a first device and a second device. The first device detects that the second device approaches the first device, the first device sends a first key to the second device. After receiving the first key, the second device encrypts a control instruction by using the first key, where the control instruction is used to control the first device. The second device sends the encrypted control instruction to the first device, and the first device decrypts the encrypted control instruction to obtain the control instruction and executes the control instruction.
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公开(公告)号：US20230093016A1
公开(公告)日：2023-03-23
申请号：US17801069
申请日：2021-02-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Rui SHI , Lianxiang SONG , Yule LIANG , Tao HAO , Liangliang MA , Chengbiao LAO , De LIU , Jirui WANG , Yuyan LIANG
Abstract: A discovery and provisioning method. The method includes: A first device in an unprovisioned state sends a first message through a first antenna, where the first message is used by a second device to discover the first device, and the first message includes a device identifier of the first device; when a distance between the second device and the first device is less than or equal to a preset distance, the second device receives the device identifier sent by the first device; and after being discovered by the second device, the first device performs provisioning by using a second antenna.
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