US 11,711,746 B2
Apparatus and method for providing operator specific service
Sujung Kang, Suwon-si (KR); Duckey Lee, Seoul (KR); Jonghan Park, Bucheon-si (KR); Youngsun Ryu, Seongnam-si (KR); Kangjin Yoon, Seoul (KR); and Hyewon Lee, Seoul (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Sep. 3, 2021, as Appl. No. 17/466,852.
Application 17/466,852 is a continuation of application No. 17/013,475, filed on Sep. 4, 2020, granted, now 11,115,900.
Application 17/013,475 is a continuation of application No. 16/687,463, filed on Nov. 18, 2019, granted, now 10,772,029, issued on Sep. 8, 2020.
Application 16/687,463 is a continuation of application No. 15/969,669, filed on May 2, 2018, granted, now 10,484,928, issued on Nov. 19, 2019.
Claims priority of application No. 10-2017-0056484 (KR), filed on May 2, 2017.
Prior Publication US 2021/0400562 A1, Dec. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 48/02 (2009.01); H04W 4/50 (2018.01); H04W 12/06 (2021.01); H04W 12/37 (2021.01); H04W 4/60 (2018.01); H04W 8/20 (2009.01); H04W 4/70 (2018.01); H04W 48/12 (2009.01); H04W 48/18 (2009.01); H04W 8/18 (2009.01)
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
OG exemplary drawing
 
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.