US 11,792,728 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 Jan. 26, 2022, as Appl. No. 17/584,458.
Application 17/584,458 is a continuation of application No. 16/793,882, filed on Feb. 18, 2020, granted, now 11,265,809.
Application 16/793,882 is a continuation of application No. 15/985,110, filed on May 21, 2018, granted, now 10,609,636, issued on Mar. 31, 2020.
Application 15/985,110 is a continuation of application No. PCT/KR2016/012814, 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 2022/0150814 A1, May 12, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 48/18 (2009.01); H04W 4/02 (2018.01); H04W 60/04 (2009.01); H04W 64/00 (2009.01); H04W 8/02 (2009.01); H04W 8/04 (2009.01); H04W 8/20 (2009.01); H04W 8/24 (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)] 5 Claims
OG exemplary drawing
 
1. A terminal device for selecting a core network in a mobile communication system, the terminal device comprising:
a service information acquisition unit configured to acquire, when a location registration of the terminal device is successful, a service information of a service to which a user subscribed for a specific type of service from a node of a dedicated core network dedicated to a specific service, and to store the service information;
a service information determining unit configured to determine whether the stored service information is valid; and
a service information transmission unit configured to transmit, when the stored service information is determined to be valid, the stored service information to a base station apparatus,
wherein the dedicated core network sends a request message to a home subscriber server when the dedicated core network receives the service information from the base station apparatus, and
wherein the dedicated core network receives an answer message including the service information which the user subscribed from the home subscriber server when the home subscriber server receives the request message from the dedicated core network.