Network access method, network device, and terminal

A network access method comprising:

• obtaining, by a network device, indication information, wherein the indication information indicates whether a terminal supports air communication;
• wherein a space domain location area and a ground location area have different location area identities;
• the obtaining, by a network device, indication information comprises:
• when the terminal performs cell handover, obtaining, by the network device, a location area identity of a source cell before the terminal performs cell handover;
• and
• the method further comprises:
• when the location area identity of the source cell indicates that the source cell is the space domain location area, determining, by the network device, that the terminal supports the air communication, and when the indication information indicates that the terminal supports the air communication, determining, by the network device, that the terminal is allowed to access a network in which the network device is located.

A network access method, comprising:

• sending, by a terminal, indication information to a network device, wherein the indication information is used to indicate whether the terminal supports air communication;
• requesting, by the terminal, to access a network in which the network device is located;
• and
• sending, by the terminal, a location area identity of a location of the terminal to the network device, wherein
• when the location area identity indicates that the location of the terminal is in a space domain location area, and the indication information indicates that the terminal does not support the air communication, the terminal is prohibited from accessing the network in which the network device is located.

An apparatus, comprising:

• a processor and a memory, wherein
• the memory stores instructions to be executed on the processor, to cause a terminal to perform:
• sending indication information to a network device, wherein the indication information indicates whether the terminal supports air communication;
• sending a location area identity of a location of the terminal to the network device;
• and
• requesting to access a network in which the network device is located, and when the location area identity indicates that the location of the terminal is in a space domain location area, and the indication information indicates that the terminal does not support the air communication, the terminal is prohibited from accessing the network in which the network device is located.