US 12,108,326 B2
Method and apparatus for selecting core network in mobile communication system
Sangsoo Jeong, Seoul (KR); Jonghan Park, Seoul (KR); and Yong-seok Choi, Seoul (KR)
Assigned to SK TELECOM CO., LTD., Seoul (KR)
Filed by SK TELECOM CO., LTD., Seoul (KR)
Filed on Oct. 13, 2021, as Appl. No. 17/500,071.
Application 17/500,071 is a continuation of application No. 15/981,351, filed on May 16, 2018, granted, now 11,178,600.
Application 15/981,351 is a continuation of application No. PCT/KR2016/012805, filed on Nov. 8, 2016.
Claims priority of application No. 10-2015-0162790 (KR), filed on Nov. 19, 2015; and application No. 10-2016-0140378 (KR), filed on Oct. 26, 2016.
Prior Publication US 2022/0039005 A1, Feb. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 48/18 (2009.01); H04W 4/02 (2018.01); H04W 8/02 (2009.01); H04W 8/04 (2009.01); H04W 8/20 (2009.01); H04W 8/24 (2009.01); H04W 60/04 (2009.01); H04W 64/00 (2009.01); H04W 4/70 (2018.01); H04W 84/04 (2009.01); H04W 92/04 (2009.01)
CPC H04W 48/18 (2013.01) [H04W 4/02 (2013.01); H04W 8/02 (2013.01); H04W 8/04 (2013.01); H04W 8/20 (2013.01); H04W 8/24 (2013.01); H04W 60/04 (2013.01); H04W 64/003 (2013.01); H04W 4/70 (2018.02); H04W 84/042 (2013.01); H04W 92/045 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of operating a base station apparatus in a mobile communication system, the method comprising:
in response to a terminal device attempting to access the mobile communication system, refraining from selecting one of at least two core networks in the mobile communication system to facilitate attachment of the terminal device to the mobile communication system until service information of a service to which a user subscribed is acquired and verified;
acquiring the service information from a service information database, which is included in the mobile communication system, or a terminal device; and
in response to verifying the acquired service information, selecting a dedicated core network among the at least two core networks to be used for providing a type of service to which the user subscribed by using the acquired service information,
wherein the base station is free from a re-routing in the selecting the dedicated core network by using the service information.