The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 16, 2023
Filed:
Dec. 31, 2020
Huawei Technologies Co., Ltd., Shenzhen, CN;
Donghui Wang, Beijing, CN;
Hongpei Li, Beijing, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A data transmission method, device, and system are provided. The method includes: receiving a first data packet sent by an external network device; verifying an authentication header (AH) packet header of the first data packet by using a first security association (SA); and sending the first data packet to an internet of things (IoT) device if the verification succeeds. According to the embodiments of this application, storage overheads and computational overheads of the IoT device in internet of things can be reduced, to implement end-to-end secure communication between the IoT device and the external network device, and improve security of a communications system.