US 12,143,463 B2
Method and apparatus for guaranteeing quality of service between a public network and a non- public network
Jihoon Sung, Daejeon (KR); Soohwan Lee, Daejeon (KR); and Myung Ki Shin, Seoul (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed on Apr. 5, 2022, as Appl. No. 17/714,018.
Claims priority of application No. 10-2021-0044263 (KR), filed on Apr. 5, 2021; application No. 10-2021-0044264 (KR), filed on Apr. 5, 2021; application No. 10-2021-0044265 (KR), filed on Apr. 5, 2021; application No. 10-2021-0060164 (KR), filed on May 10, 2021; application No. 10-2021-0105627 (KR), filed on Aug. 10, 2021; application No. 10-2021-0172375 (KR), filed on Dec. 3, 2021; application No. 10-2022-0042457 (KR), filed on Apr. 5, 2022; application No. 10-2022-0042458 (KR), filed on Apr. 5, 2022; and application No. 10-2022-0042459 (KR), filed on Apr. 5, 2022.
Prior Publication US 2022/0321674 A1, Oct. 6, 2022
Int. Cl. H04L 67/61 (2022.01); H04L 41/5003 (2022.01); H04L 67/52 (2022.01)
CPC H04L 67/61 (2022.05) [H04L 41/5003 (2013.01); H04L 67/52 (2022.05)] 13 Claims
OG exemplary drawing
 
1. An application function (AF) in a first network, the AF comprising a processor, a memory, and a communication device, wherein the processor executes a program stored in the memory to perform:
requesting quality of service (QOS) related information to a network exposure function (NEF) of a second network different from the first network in which the AF is located by invoking a service operation for a network exposure service to the NEF, wherein the QoS related information includes QoS sustainabilities and is used to guarantee the QoS of a service to be provided to a terminal; and
receiving the QoS related information from the NEF of the second network,
wherein the requesting comprises inputting location information of the terminal and QoS requirements required for network-initiated QoS modification of the second network, wherein the QoS requirements include a 5G QoS Identifier (5QI) and QoS characteristics,
wherein the QoS related information is determined, based on a service level agreement (SLA) between the first network and the second network, using the 5QI and the QoS characteristics,
wherein the first network comprises a network that provides a service required by the terminal and the second network comprises a network to which the terminal is directly connected,
wherein the terminal establishes protocol data unit (PDU) sessions with the first network based on non-3GPP access and PDU sessions with the second network based on 3GPP access,
wherein one of the first network and the second network comprises a public land mobile network (PLMN), and another comprises a stand-alone non-public network (SNPN),
wherein when the processor performs the inputting location information of the terminal and QoS requirements when invoking the service operation, the processor performs obtaining the location information of the terminal by invoking a service operation for a location-related service for the terminal to the NEF of the second network.