Network access method and terminal

A terminal, wherein the terminal is configured with a first subscriber identity module (SIM) card and a second SIM card, the terminal is simultaneously connected to primary access network equipment of a first network using a first protocol through the first SIM card and secondary access network equipment of a second network using a second protocol through the first SIM card, and the terminal is connected to the secondary access network equipment with assistance of the primary access network equipment;

• the terminal comprises a processor, a memory, and a transceiver, wherein
• the memory is configured to store a computer instruction;
• and
• when the terminal operates, the processor executes the computer instruction, so that the terminal performs:
• based on that the terminal executes a first service via the first network through the second SIM card, disconnecting a second radio resource control (RRC) connection between the terminal and the secondary access network equipment while remaining connected to the primary access network equipment through the first SIM card;
• determining that the first service through the second SIM card ends;
• actively disconnecting a first RRC connection between the terminal and the primary access network equipment through the first SIM card;
• and
• sending an RRC connection re-establishment request to the primary access network equipment, so that the terminal is reconnected to the primary access network equipment of the first network through the first SIM card and the secondary access network equipment of the second network through the first SIM card with assistance of the primary access network equipment.