Method and apparatus for stopping wireless access network-based notification area update for mobile integrated access and backhaul node in wireless communication system

A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

• receiving, from a mobile integrated access and backhaul (mIAB) node configured to provide a first cell, first system information including a radio access network (RAN)-based notification area (RNA) update suspension indicator and first RNA information;
• camping on the first cell;
• performing a first RNA update, based on the first RNA information;
• and
• receiving, from the mIAB node configured to provide a second cell, second system information including second RNA information,
• wherein, based receiving the RNA update suspension indicator, a second RNA update based on the second RNA information is not performed.

A method performed by a mobile integrated access and backhaul (mIAB) node in a wireless communication system, the method comprising:

• transmitting, to a user equipment (UE), via a first cell, first system information including first radio access network (RAN)-based notification area (RNA) information and an RNA update suspension indicator;
• generating a second cell, based on a movement of the mIAB node;
• and
• transmitting, to the UE, via the second cell, second system information including second RNA information,
• wherein a first RNA update is performed based on the first RNA information, and
• wherein, based on the UE receiving the RNA update suspension indicator, a second RNA update based on the second RNA information is not performed.

A user equipment (UE) comprising:

• at least one transceiver;
• at least one processor communicatively coupled to the at least one transceiver;
• and
• at least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the UE to:
• receive, from a mobile integrated access and backhaul (mIAB) node configured to provide a first cell, first system information including a radio access network (RAN)-based notification area (RNA) update suspension indicator and first RNA information;
• camp on the first cell;
• perform a first RNA update, based on first RNA information;
• and
• receive, from the mIAB node configured to provide a second cell, second system information including second RNA information,
• wherein, based on receiving the RNA update suspension indicator, a second RNA update based on the second RNA information is not performed.

A mobile integrated access and backhaul (mIAB) node comprising:

• at least one transceiver;
• at least one processor communicatively coupled to the at least one transceiver;
• and
• at least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the mIAB node to:
• transmit, to a user equipment (UE) via a first cell, first system information comprising first RAN-based notification area (RNA) information and an RNA update suspension indicator;
• generate a second cell, based on a movement of the mIAB node;
• and
• transmit, to the UE via the second cell, second system information comprising second RNA information,
• wherein a first RNA update is performed based on the first RNA information, and
• wherein, based on reception of the RNA update suspension, a second RNA update based on the second RNA information is not performed