US 12,256,318 B2
Method and apparatus for authentication between core network devices in mobile communication system
Jungje Son, Suwon-si (KR); and Duckey Lee, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Apr. 19, 2022, as Appl. No. 17/659,804.
Claims priority of application No. 10-2021-0051321 (KR), filed on Apr. 20, 2021; and application No. 10-2021-0059580 (KR), filed on May 7, 2021.
Prior Publication US 2022/0338104 A1, Oct. 20, 2022
Int. Cl. H04W 48/16 (2009.01); H04W 4/50 (2018.01); H04W 12/06 (2021.01)
CPC H04W 48/16 (2013.01) [H04W 4/50 (2018.02); H04W 12/06 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of a network function (NF) consumer in a wireless communication system, the method comprising:
receiving, from an NF repository function (NRF), a discovery response message during a discovery procedure, wherein the discovery response message comprises NF set information including NF instance identifiers (IDs) for providing a service;
transmitting, to the NRF, an access token request message comprising an NF producer instance ID and a uniform resource identifier (URI) address of the NF consumer;
receiving, from the NRF, an access token response message comprising an access token;
transmitting, to a service communication proxy (SCP), a service request message for an NF producer instance, the service request message comprising the access token received from the NRF, a client credentials assertion (CCA) of the NF consumer, the URI address of the NF consumer and the NF set information; and
receiving, from the SCP, a service response message comprising a CCA of the NF producer instance.