Abstract: A method in which a high-quality packet telephony terminal apparatus performing low-latency and lossless packet communication with a counterpart packet telephony terminal apparatus operates in an integrated network structure in which a time sensitive network (TSN) and a packet communication network are combined may be disclosed. The packet telephony terminal apparatus may perform packet telephony call processing, perform a TSN stream reservation procedure when the counterpart packet telephony terminal apparatus is capable of performing a TSN function for lossless packet communication, adjust a size of a dejitter buffer when the TSN stream reservation procedure is successful, and perform low-latency packet telephony communication through the minimized size of the dejitter buffer.

Abstract: A method and apparatus for processing DetNet traffic through the steps of receiving configuration information for configuring a DetNet node from a DetNet controller of a DetNet system and configuring a UPF, a DS-TT, and/or a NW-TT in a mobile communication system as the DetNet node are provided.

Abstract: An apparatus and method for providing an SFC service exposure function in a wireless communication system is proposed. The apparatus and method relates to a wireless communication system in general, and specifically, the method includes a process of requesting a service function chaining (SFC) service from a network exposure function (NEF), wherein, in the process of requesting the SFC service, the SFC service is requested by inputting an SFC policy identifier and a metadata value on a basis of an Nnef_TrafficInfluence service interface, and the SFC policy identifier is mapped to an identifier defined in a policy and charging control (PCC) rule.

Abstract: Provided is a method of creating a QoS flow for a time synchronization protocol in a wireless communication network. A method of creating a QoS flow for a time synchronization protocol in a wireless communication network includes: receiving, by a Session Management Function (SMF), the PTP profile information from the UE, together with at least one of a DNN, a S-NSSAI information and a session ID for a Time Sensitive Communication (TSC) service; setting, by the SMF, a PCCrule of the QoS flow for the time synchronization protocol; providing, by the SMF, the QoS flow and a SDF filter information for the QoS flow to a User Plane Function (UPF); and providing, by the SMF, the QoS flow and a QoS rule filter to an Access and Mobility Management Function (AMF).

Abstract: Provided is an operation method of a user plane function (UPF) apparatus in a wireless communication system, the operation method including: obtaining a subscription request message from either a TSN AF or a TSCTSF or both on the basis of an exposure service for a UPF event, the subscription request message including TSC management information; performing triggering for subscription to the UPF event on the basis of the TSC management information; and providing a notification message to either the TSN AF or the TSCTSF or both, the notification message including the TSC management information.

Abstract: Provided is an operation method of a time sensitive communication and time synchronization function (TSCTSF) in a wireless communication system, the operation method including: obtaining a deterministic networking (DetNet) configuration parameter from a first AF outside a service provider network; generating parameter mapping information on the basis of the DetNet configuration parameter; and providing the parameter mapping information to a second AF inside the service provider network, wherein the TSCTSF is a network function for providing the AF outside or inside the service provider network with time sensitive communication and time synchronization services.

Abstract: Provided is a method of creating a QoS flow for a time synchronization protocol in a wireless communication network. A method of creating a QoS flow for a time synchronization protocol in a wireless communication network includes: receiving, by a Session Management Function (SMF), the PTP profile information from the UE, together with at least one of a DNN, a S-NSSAI information and a session ID for a Time Sensitive Communication (TSC) service; setting, by the SMF, a PCCrule of the QoS flow for the time synchronization protocol; providing, by the SMF, the QoS flow and a SDF filter information for the QoS flow to a User Plane Function (UPF); and providing, by the SMF, the QoS flow and a QoS rule filter to an Access and Mobility Management Function (AMF).

Abstract: An apparatus and method for directly exposing, by user plane function/network side-time sensitive networking translator (UPF/NW-TT), event result information to time sensitive networking (TSN) or time sensitive communication time synchronization function (TSCTSF) through service interface (Nupf) in wireless communication system.

Abstract: Proposed is a wireless communication system and, more particularly, an apparatus and method for providing a N6-LAN service using SFC in a wireless communication system. A method of supporting an N6-LAN traffic steering function using an SFC technology in a wireless communication system, includes a process in which a policy control function (PCF) configures additional information for N6-LAN traffic steering on the basis of a policy and charging control (PCC) rule, a process of transmitting the configured additional information to a session management function (SMF), a process in which the SMF configures a forwarding action rule (FAR) including the additional information for N6-LAN traffic steering, a process in which the SMF transmits the FAR including the additional information to a user plane function (UPF), and a process in which the UPF performs SFC encapsulation on the basis of a predefined SFC policy and the FAR.

Abstract: Provided is an operation method of a user plane function (UPF) in a wireless communication system, the operation method including: obtaining a subscription request message from a network function (NF), the subscription request message including a first identifier; and providing the NF with a subscription response message corresponding to the subscription request message, the subscription response message including a second identifier, wherein the first identifier includes upSeId or a user session identifier that is a session identifier for a user terminal, or both, and the second identifier includes cpSeId or the user session identifier or both.

Abstract: A 5G system operating as a Time Sensitive Network (TSN) bridge and a traffic transmission method are provided. The traffic transmission method includes receiving, by a User Plane Function (UPF), a traffic transmission type information from a Session Management Function (SMF); determining, by the UPF, whether a Time Sensitive Communication (TSC) traffic incoming the TSN bridge is a UE-UE TSC traffic based on the traffic transmission type information; and when it is determined that the TSC traffic incoming the TSN bridge is the UE-UE TSC traffic, performing, by the UPF, local switching between Protocol Data Unit (PDU) sessions for transmitting UE-UE TSC traffic.

Abstract: The present disclosure relates generally to a wireless communication system. More particularly, the present disclosure relates to an apparatus and a method for applying a service-based interface for user traffic processing in a wireless communication system. An operation method of a user plane function (UPF) in a wireless communication system includes: transmitting information on the UPF to a network repository function (NRF) to register a service of the UPF in the NRF, wherein the information on the UPF includes a universally unique identifier (UUID), and information on the service provided by the UPF; and receiving the information on the registered service of the UPF from the NRF.

Abstract: A method and apparatus for processing DetNet traffic through the steps of receiving configuration information for configuring a DetNet node from a DetNet controller of a DetNet system and configuring a UPF, a DS-TT, and/or a NW-TT in a mobile communication system as the DetNet node are provided.

Abstract: A method and a network function of an access network for supporting an initial access of UE through the steps of: receiving a request for a first service operation for initial context setup from an AMF of a core network through an interface of service-based architecture between the AMF and the network function; and establishing a bearer related to a user plane function in the access network based on information included in the first service operation are provided.

Abstract: Provided are a method for performing port configuration of a 5G system (5GS) for providing a time synchronization service, and a network entity performing the same. A method for performing port configuration may include: when a grandmaster (GM) is determined to be a Time Sensitive Networking (TSN) GM outside the 5GS, performing, by a Network Exposure Function (NEF), port configuration of the 5GS in a Best Master Clock Algorithm (BMCA) scheme; and when the GM is determined to be a 5GS GM inside the 5GS, or the TSN GM outside the 5GS that does not support the BMCA, performing, by the NEF, port configuration of the 5GS in an external port configuration scheme.

Abstract: Provided are a time synchronization method using 5G reference time distribution and a network entity performing the same. The time synchronization method may include receiving, by a time sensitive communication time synchronization function (TSCTSF), a 5G reference time distribution request including time synchronization parameter values from an application function (AF); performing, by the TSCTSF, policy modification; and transmitting, by the TSCTSF, a setting of the 5G reference time distribution to the AF.

Abstract: Provided is a method for providing a time synchronization service for an external application service of a 5G system (5GS). A method may include: receiving, by a Network Exposure Function (NEF) from an Application Function (AF), a request for a capability for a 5GS time synchronization service; and in response to the request for the capability, transmitting, by the NEF to the AF, a time synchronization parameter including the capability.

Abstract: Provided is a method of jitter monitoring for time sensitive communication (TSC) in a wireless communication network. The method of jitter monitoring may include: receiving, by a user plane function (UPF), a delay and jitter measurement request from an application function (AF); measuring, by the UPF, a delay and a jitter in response to the delay and jitter measurement request; and transmitting, by the UPF, the measured delay and jitter to the AF.

Abstract: A method for processing a packet in a mobile communication network and a network element for performing the same. A first network element may receive a first data packet to be transmitted to a second network element via a third network element and add a header to the first data packet. The first network element may add time information associated with the first data packet to the header and transmit the first data packet with the header to the third network element.

Abstract: A method in which a high-quality packet telephony terminal apparatus performing low-latency and lossless packet communication with a counterpart packet telephony terminal apparatus operates in an integrated network structure in which a time sensitive network (TSN) and a packet communication network are combined may be disclosed. The packet telephony terminal apparatus may perform packet telephony call processing, perform a TSN stream reservation procedure when the counterpart packet telephony terminal apparatus is capable of performing a TSN function for lossless packet communication, adjust a size of a dejitter buffer when the TSN stream reservation procedure is successful, and perform low-latency packet telephony communication through the minimized size of the dejitter buffer.