| CPC H04W 36/0016 (2013.01) [H04W 36/142 (2023.05)] | 10 Claims |
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1. A base station of a mobile communication system, comprising:
one or more processors; and
one or more memories that store computer-readable instructions, which cause, when executed by the one or more processors, the base station to:
receive an instruction for switching a core network based on a communication that a terminal connected to the base station is to perform;
transmit, in response to the received instruction, a connection release request message to a local 5G (fifth generation) core network to which the base station is currently connected;
receive, from the local 5G core network, a message response to the connection release request message;
transmit, to a public 5G core network, a connection request message after receiving the message response to the connection release request message;
receive, from the public 5G core network, a message response to the connection request message; and
connect to the public 5G core network,
wherein the public 5G core network is connected to a server device located in an external network, and the local 5G core network is not connected to any server device located in the external network.
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