| CPC H04L 65/1073 (2013.01) [H04L 63/0876 (2013.01); H04L 63/126 (2013.01); H04L 67/12 (2013.01)] | 15 Claims |

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1. A method for cross-domain Internet of Things device registration, comprising:
obtaining, by a first server, a user identification, wherein the user identification includes user information;
receiving, by the first server, a registration request carrying a user identification sent by a first Internet of Things device, wherein the first server and the first Internet of Things device are in different domains; and
responding, by the first server, whether registration is successful by verifying whether the user identification is correct,
wherein after the first server receives the registration request of the first Internet of Things device, the first server compares the received user identification sent by the first Internet of Things device with the user identification obtained by the first server, and responds whether the registration is successful according to a comparison result, and
wherein the registration request further includes a device identification and/or a device type, and the first server determines a target device associated with the first Internet of Things device according to the device identification and/or the device type.
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