Patent ID: 11930008
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 9:
10. A terminal device, wherein the terminal device is a first terminal device, and wherein the first terminal device comprises:
at least one processor; and
a memory storing instructions executable by the at least one processor, wherein the instructions instruct the at least one processor to:
send a first device identifier to a network device in a first access mode; and
send a first random number to the network device;
receive first verification information sent by the network device, wherein the first verification information is generated by the network device based on the first random number and a first key;
generate fourth verification information based on the first random number and a second key, wherein the second key is preconfigured in the first terminal device;
determine whether the first verification information matches the fourth verification information;
in response to determining that the first verification information matches the fourth verification information, send first acknowledgment information to the network device, wherein the first acknowledgment information is used to indicate that the first terminal device successfully verifies the first verification information; and
receive subscription information that is of the first terminal device and that is sent by the network device in the first access mode, wherein the subscription information is sent by the network device after the network device determines that the first device identifier matches a second device identifier, and wherein the second device identifier is sent by a second terminal device to the network device in a second access mode.