5G Tutorial
5G Introduction
5G Network Function
5G Network Function Service
5G Definitions
5G Concepts
Architecture Reference
Data Storage Architectures
Non-3GPP Access
Non-3GPP Access Reference Points
Network Analytics architecture
Network Access Control
Http Status Codes
Http Custom Headers
Common Data Types
Service Based Architecture
Network Functions
Reference Points
Reference Points
Protocol Errors
Http Mandatory Headers
AMF Function
AMF Functional Description
AMF Specifications
AMF Services
SMF Function
SMF Functional Description
SMF Specifications
SMF Services
UPF Function
UPF Functional Description
PCF Function
PCF Functional Description
PCF Specifications
NEF Function
NEF Functional Description
NEF Specifications
NRF Function
NRF Functional Description
NRF Specifications
UDM Function
UDM Functional Description
UDM Specifications
AUSF Function
AUSF Functional Description
AUSF Specifications
N3IWF Function
N3IWF Function Description
Application Function
Application Functional Description
UDR Function
UDR Functional Description
UDR Specifications
UDSF Function
UDSF Functional Description
SMSF Function
SMSF Functional Description
SMSF Specifications
NSSF Function
NSSF Functional Description
NSSF Specifications
5G-EIR Function
5G-EIR Functional Description
5G-EIR Specifications
LMF Function
LMF Functional Description
LMF Specifications
SEPP Function
SEPP Functional Description
NWDAF Function
NWDAF Functional Description
NWDAF Specifications
Data Types

5G Definitions

5G Access Network

An access network comprising a NG-RAN and/or non-3GPP AN connecting to a 5G Core Network.

5G Core Network

The core network specified in the present document. It connects to a 5G Access Network.

5G System

3GPP system consisting of 5G Access Network (AN), 5G Core Network and UE.

Allowed NSSAI

NSSAI provided by the Serving PLMN during e.g. a Registration procedure, indicating the S-NSSAIs values the UE could use in the Serving PLMN for the current registration area.

Allowed Area

Area where the UE is allowed to initiate communication

AMF Region

An AMF Region consists of one or multiple AMF Sets


An AMF Set consists of some AMFs that serve a given area and Network Slice(s). AMF Set is unique within an AMF Region and it comprises of AMFs that support the same Network Slice(s). Multiple AMF Sets may be defined per AMF Region.

Application identifier

An identifier that can be mapped to a specific application traffic detection rule.


This refers to one or more AUSF instances managing a specific set of SUPIs.

Configured NSSAI

NSSAI provisioned in the UE applicable to one or more PLMNs.

DN Access Identifier (DNAI)

Identifier of a user plane access to one or more DN(s) where applications are deployed.

Emergency Registered

A UE is considered Emergency Registered over an Access Type in a PLMN when in limited service state and registered for emergency services only over this Access Type in this PLMN

Endpoint Address

An address used by a NF service consumer to access the NF service (i.e. to invoke service operations) provided by a NF service provider. An Endpoint Address is represented in the syntax of Uniform Resource Identifier (e.g. part of Resource URI of the NF service API)

Expected UE Behaviour

Set of parameters provisioned by an external party to 5G network functions on the foreseen or expected UE behavior, see clause 5.20

Forbidden Area

An area where the UE is not allowed to initiate communication.

GBR QoS Flow

A QoS Flow using the GBR resource type or the Delay-critical GBR resource type and requiring guaranteed flow bit rate.

Initial Registration

UE registration in RM-DEREGISTERED state as specified

Local Area Data Network

a DN that is accessible by the UE only in specific locations, that provides connectivity to a specific DNN, and whose availability is provided to the UE

Local Break Out (LBO)

Roaming scenario for a PDU Session where the PDU Session Anchor and its controlling SMF are located in the serving PLMN (VPLMN).

Mobility Pattern

Network concept of determining within the AMF the UE mobility parameters as specified

Mobility Registration Update

UE re-registration when entering new TA outside the TAI List as specified

MPS-subscribed UE

A UE having a USIM with MPS subscription

NGAP UE association

The logical per UE association between a 5G-AN node and an AMF

NGAP UE-TNLA-binding

The binding between a NGAP UE association and a specific TNL association for a given UE.

Network Function

A 3GPP adopted or 3GPP defined processing function in a network, which has defined functional behaviour and 3GPP defined interfaces.

A network function can be implemented either as a network element on a dedicated hardware, as a software instance running on a dedicated hardware, or as a virtualised function instantiated on an appropriate platform, e.g. on a cloud infrastructure.

Network Instance

Information identifying a domain. Used by the UPF for traffic detection and routing.

Network Slice

A logical network that provides specific network capabilities and network characteristics.

Network Slice instance

A set of Network Function instances and the required resources (e.g. compute, storage and networking resources) which form a deployed Network Slice.

Non-GBR QoS Flow

A QoS Flow using the Non-GBR resource type and not requiring guaranteed flow bit rate.


An identifier for a Network Slice instance.

NF Instance

An identifiable instance of the NF.

NF Service

A functionality exposed by a NF through a service based interface and consumed by other authorized NFs.

NF service instance

an identifiable instance of the NF service.

NF service operation

An elementary unit a NF service is composed of.


A radio access network that supports one or more of the following options with the common characteristics that it connects to 5GC:
1) Standalone New Radio.
2) New Radio is the anchor with E-UTRA extensions.
3) Standalone E-UTRA.
4) E-UTRA is the anchor with New Radio extensions.

Non-Allowed area

Area where the UE is allowed to initiate Registration procedure but no other communication as specified

Non-Seamless Non-3GPP offload

The offload of user plane traffic via non-3GPP access without traversing either N3IWF or UPF.

PDU Connectivity Service

A service that provides exchange of PDUs between a UE and a Data Network.

PDU Session

Association between the UE and a Data Network that provides a PDU connectivity service.

PDU Session Type

The type of PDU Session which can be IPv4, IPv6, IPv4v6, Ethernet or Unstructured.

Periodic Registration Update

UE re-registration at expiry of periodic registration timer as specified

(Radio) Access Network

See 5G Access Network.

Requested NSSAI

NSSAI provided by the UE to the Serving PLMN during registration.

Routing Indicator

Indicator that allows together with SUCI/SUPI Home Network Identifier to route network signalling to AUSF and UDM instances capable to serve the subscriber.

Service based interface

It represents how a set of services is provided/exposed by a given NF.

Service Continuity

The uninterrupted user experience of a service, including the cases where the IP address and/or anchoring point change.

Service Data Flow Filter

A set of packet flow header parameter values/ranges used to identify one or more of the packet (IP or Ethernet) flows constituting a Service Data Flow.

Service Data Flow Template

The set of Service Data Flow filters in a policy rule or an application identifier in a policy rule referring to an application detection filter, required for defining a Service Data Flow.

Session Continuity

The continuity of a PDU Session. For PDU Session of IPv4 or IPv6 or IPv4v6 type "session continuity" implies that the IP address is preserved for the lifetime of the PDU Session.

Subscribed S-NSSAI

S-NSSAI based on subscriber information, which a UE is subscribed to use in a PLMN.

UDM Group ID

This refers to one or more UDM instances managing a specific set of SUPIs.

UDR Group ID

This refers to one or more UDR instances managing a specific set of SUPIs.

UPF Service Area

The area within which PDU Session associated with the UPF can be served by (R)AN nodes via a N3 interface between the (R)AN and the UPF without need to add a new UPF in between or to remove/re-allocate the UPF.

Uplink Classifier

UPF functionality that aims at diverting Uplink traffic, based on filter rules provided by SMF, towards Data Network.


5G UE Route Selection Policy

posted on 2019-04-08 07:35:20 - 5G Tutorial Tutorials


5G UE Reachability Request Parameter for AMF

posted on 2019-04-08 07:35:04 - 5G Tutorial Tutorials


5G Uniform Resource Identifier

posted on 2019-04-08 07:34:48 - 5G Tutorial Tutorials

Prompt Examples

ChatGPT Prompt Examples

posted on 2023-06-21 22:37:19 - ChatGPT Tutorials

Use Cases

Chat GPT Key Use Cases

posted on 2023-06-21 21:03:17 - ChatGPT Tutorials

Prompt Frameworks

Prompt Frameworks

posted on 2023-06-21 19:33:06 - ChatGPT Tutorials