Electronics and Telecommunications Research Institute

Changki Kim

Kyung Soo Kim

Jae Ho Kim

Yoo Hwa Kang

Jeoung Lak Ha

Nam Seok Ko

Taesik Cheung

No Ik Park

Jeong-dong Ryoo

Yeoncheol Ryoo

Namseok Ko

Seung Han Choi

Jaewook Lee

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.

Communication in wireless communication network

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.

Apparatus and method for providing N6-LAN using service function chaining in wireless communication system

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.

Method and apparatus for processing DetNet traffic

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).

Method of creating QoS synchronization protocol in wireless communication network

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.

Time synchronization method using 5G reference time distribution and network entity performing the same

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.

Method for providing time synchronization service for 5G system external application service

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. A method of operating event processing for TSN or TSC includes: when policy control function (PCF) performs TSC event subscription, receiving TSC management and control information for direct reporting notification of event result from TSN-application function or TSCTSF and transmitting the TSC management and control information to session management function (SMF); regenerating the TSC management and control information and transmitting the regenerated TSC management and control information to UPF/NW-TT through N4 interface; and receiving the TSC management and control information from SMF, and when a corresponding event occurs, transmitting the TSC management information including the event result to a target in the control information through SBI.

Apparatus and method for providing exposure service of user plane for time sensitive communication in wireless communication system

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.

Apparatus and method for supporting deterministic networking in wireless communication system

Method and apparatus for processing DETNET traffic

Method of creating QoS flow for time synchronization protocol in wireless communication network

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.

5G system operating as TSN bridge and traffic transmission method

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.

Method for performing port configuration of 5G system for providing time synchronization service and network entity performing the same

A steering rule provision method for traffic distribution in a network and a network entity performing the same network. A session management function (SMF) may transmit a first message including a multi-access rule (MAR) to a user plane function (UPF), when establishing or modifying a packet data unit (PDU) session for ATSSS (Access Traffic Steering, Switching, and Splitting). The SMF may receive a second message that is a response message to the first message from the UPF.

Steering rule provision method for traffic distribution in network and network entity performing the same

A packet data unit session establishment method and network entity performing the same is disclosed. User equipment (UE) may establish registration with the core network through a first access network when the UE is registered in a core network through a second access network belonging to the network and a first PDU session is established through the second access network. The UE may transmit a non-access stratum (NAS) message including a PDU session identifier (ID) that is the same as an ID of the first PDU session to an access and mobility management function (AMF).

Packet data unit session establishment method and network entity performing the same

A traffic distribution method through a multi-access network in a network and a network entity performing the same are disclosed. An access and mobility management function (AMF) may receive a PDU session modification request message including an ATSSS (access traffic steering, switching, and splitting) preference, which is a preference for an ATSSS rule, from an user equipment (UE) when a multi-access PDU session (MA PDU session) is established and the UE desires to change the ATSSS rule corresponding to the established MA PDU session. The AMF may transmit a first message including the ATSSS preference to a session management function (SMF).

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Daejeon, South Korea

Changki Kim