CPC H04W 48/02 (2013.01) [H04W 4/50 (2018.02); H04W 12/06 (2013.01); H04W 12/37 (2021.01); H04W 4/60 (2018.02); H04W 4/70 (2018.02); H04W 8/183 (2013.01); H04W 8/205 (2013.01); H04W 48/12 (2013.01); H04W 48/18 (2013.01)] | 20 Claims |
1. A method performed by a terminal in a communication system, the method comprising:
receiving, from a base station, system information including information on a restricted operator service associated with a cell of the base station;
in case that the information is included in the system information and the restricted operator service is required, transmitting, to the base station, a first radio resource control (RRC) message including first information indicating to the base station that the terminal is initiating the restricted operator service and a first message associated with an attach request, the first message including an international mobile station equipment identity (IMEI) of the terminal and second information indicating to a core network entity that the terminal is accessing for the restricted operator service; and
receiving, from the base station, a second RRC message including a second message associated with an attach accept, the second message including information for a bearer associated with the restricted operator service,
wherein the terminal has no subscriber identity module (SIM) information.
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