Access network device selection method and apparatus

A communication apparatus, comprising at least one processor and an interface circuit, wherein the interface circuit is configured to receive a first signal from another communication apparatus and transmit the first signal to the at least one processor, or send a second signal from the at least one processor to the other communication apparatus, and the at least one processor is configured to perform, through a logic circuit or by executing code instructions, operations comprising:

• sending one or more identifiers of at least one non-public network;
• setting up a connection to a terminal device;
• receiving a registration request message from the terminal device, wherein the registration request message comprises an identifier of a first non-public network;
• and the identifier of the first non-public network is one of the one or more identifiers of the at least one non-public network;
• and
• sending the registration request message to a mobility management device, wherein the mobility management device is configured to perform access management on the terminal device, and the mobility management device is determined based on the identifier of the first non-public network.

A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program or instructions;

• and when the computer program or the instructions are executed by a communication apparatus, the communication apparatus is enabled to perform operations comprising:
• sending one or more identifiers of at least one non-public network;
• setting up a connection to a terminal device;
• receiving a registration request message from the terminal device, wherein the registration request message comprises an identifier of a first non-public network;
• and the identifier of the first non-public network is one of the one or more identifiers of the at least one non-public network;
• and
• sending the registration request message to a mobility management device, wherein the mobility management device is configured to perform access management on the terminal device, and the mobility management device is determined based on the identifier of the first non-public network.