Method and apparatus for searching for network

A method for searching for a network, comprising:

• in a user equipment (UE) camping on a cell of a current public land mobile network (PLMN):
• determining whether the UE is in an access barred state in the camped cell;
• in response to the UE being in the access barred state in the camped cell, determining whether the current PLMN is a home public land mobile network HPLMN of the UE, whether the PLMN is an equivalent home public land mobile network EHPLMN of the UE, and whether the UE is in a normal state;
• switching to a limited service state and performing a PLMN search if the current PLMN is neither the HPLMN of the UE nor the EHPLMN of the UE, and the UE is not in the normal roaming state;
• and
• reselecting a cell in the current PLMN if the current PLMN is the HPLMN or current PLMN is the EHPLMN, or the UE is in the normal roaming state.

A terminal device for searching for a network, comprising a processor and a memory storing instructions, the instructions being executable by the processor to cause the terminal device to:

• camp on a cell of a current public land mobile network (PLMN);
• determine whether the current PLMN is a normal PLMN in response to determining that the terminal device is in an access barred state in the camped cell, and that the terminal device cannot be successfully registered with the current PLMN, wherein the normal PLMN comprises:
• a registered public land mobile network (RPLMN) with which the terminal device is previously successfully registered, a home public land mobile network (HPLMN) of the terminal device or an equivalent home public land mobile network (EHPLMN) of the terminal device;
• perform a PLMN search in response to the terminal device determining that the current PLMN is not the normal PLMN;
• and
• reselect a cell in the current PLMN if the terminal device determines that the current PLMN is the normal PLMN.

A terminal device for searching for a network, comprising a processor and a memory storing instructions, the instructions being executable by the processor to cause the terminal device to:

• camp on a cell of a current public land mobile network (PLMN);
• determine whether the terminal device is in an access barred state in the camped cell;
• in response to the terminal device being in the access barred state in the camped cell, determine whether the current PLMN is a home public land mobile network HPLMN of the terminal device, whether the PLMN is an equivalent home public land mobile network EHPLMN of the terminal device, and whether the terminal device is in a normal state;
• switch to a limited service state and perform a PLMN search if the current PLMN is neither the HPLMN of the terminal device nor the EHPLMN of the terminal device, and the terminal device is not in the normal roaming state;
• and
• reselect a cell in the current PLMN if the current PLMN is the HPLMN or current PLMN is the EHPLMN, or the terminal device is in the normal roaming state.