23.501 v20.2.0

Words and abbreviations

221 abbreviations and 162 definitions, exactly as 23.501 declares them in its own terms clause.

Abbreviations 221

(R)AN: (Radio) Access Network
5G DDNMF: 5G Direct Discovery Name Management Function
5G GM: 5G Grand Master
5G LAN: 5G Local Area Network
5G NSWO: 5G Non-Seamless WLAN offload
5G VN: 5G Virtual Network
5G-AN: 5G Access Network
5G-AN PDB: 5G Access Network Packet Delay Budget
5G-BRG: 5G Broadband Residential Gateway
5G-CRG: 5G Cable Residential Gateway
5G-EIR: 5G-Equipment Identity Register
5G-GUTI: 5G Globally Unique Temporary Identifier
5G-RG: 5G Residential Gateway
5G-S-TMSI: 5G S-Temporary Mobile Subscription Identifier
5GC: 5G Core Network
5GS: 5G System
5QI: 5G QoS Identifier
ADRF: Analytics Data Repository Function
AF: Application Function
AI/ML: Artificial Intelligence/Machine Learning
AKMA: Authentication and Key Management for Applications
AMF: Access and Mobility Management Function
AnLF: Analytics Logical Function
AoI: Area of Interest
AS: Access Stratum
ATSSS: Access Traffic Steering, Switching, Splitting
ATSSS-LL: ATSSS Low-Layer
AUSF: Authentication Server Function
BMCA: Best Master Clock Algorithm
BSF: Binding Support Function
CAG: Closed Access Group
CAPIF: Common API Framework for 3GPP northbound APIs
CH: Credentials Holder
CHF: Charging Function
CN PDB: Core Network Packet Delay Budget
CP: Control Plane
CQRCI: Clock Quality Reporting Control Information
DAPS: Dual Active Protocol Stacks
DCCF: Data Collection Coordination Function
DCS: Default Credentials Server
DetNet: Deterministic Networking
DL: Downlink
DN: Data Network
DNAI: DN Access Identifier
DNN: Data Network Name
DRX: Discontinuous Reception
DS-TT: Device-side TSN translator
EAC: Early Admission Control
EBI: EPS Bearer Identity
EIF: Energy Information Function
ePDG: evolved Packet Data Gateway
EUI: Extended Unique Identifier
FAR: Forwarding Action Rule
FL: Federated Learning
FN-BRG: Fixed Network Broadband RG
FN-CRG: Fixed Network Cable RG
FN-RG: Fixed Network RG
FQDN: Fully Qualified Domain Name
GBA: Generic Bootstrapping Architecture
GBRSS: Guaranteed Bit Rate Streaming Service
GEO: Geostationary Orbit
GFBR: Guaranteed Flow Bit Rate
GIN: Group ID for Network Selection
GMLC: Gateway Mobile Location Centre
GPSI: Generic Public Subscription Identifier
GUAMI: Globally Unique AMF Identifier
HMTC: High-Performance Machine-Type Communications
HR: Home Routed (roaming)
I-SMF: Intermediate SMF
I-UPF: Intermediate UPF
IAB: Integrated access and backhaul
IMEI/TAC: IMEI Type Allocation Code
IPUPS: Inter PLMN UP Security
L4S: Low Latency, Low Loss and Scalable Throughput
LADN: Local Area Data Network
LBO: Local Break Out (roaming)
LEO: Low Earth Orbit
LMF: Location Management Function
LoA: Level of Automation
LPP: LTE Positioning Protocol
LRF: Location Retrieval Function
MB-SMF: Multicast/Broadcast Session Management Function
MB-UPF: Multicast/Broadcast User Plane Function
MBS: Multicast/Broadcast Service
MBSF: Multicast/Broadcast Service Function
MBSR: Mobile Base Station Relay
MBSTF: Multicast/Broadcast Service Transport Function
MCX: Mission Critical Service
MDBV: Maximum Data Burst Volume
MEO: Medium Earth Orbit
MFAF: Messaging Framework Adaptor Function
MFBR: Maximum Flow Bit Rate
MICO: Mobile Initiated Connection Only
MINT: Minimization of Service Interruption
ML: Machine Learning
MPQUIC: Multi-Path QUIC
MPS: Multimedia Priority Service
MPTCP: Multi-Path TCP Protocol
MTLF: Model Training Logical Function
MWAB: Mobile gNB with wireless access backhauling
N3IWF: Non-3GPP InterWorking Function
N3QAI: Non-3GPP QoS Assistance Information
N5CW: Non-5G-Capable over WLAN
NAI: Network Access Identifier
NAT: Network Address Translation
NCR: Network Controlled Repeater
NCR-MT: NCR Mobile Termination
NEF: Network Exposure Function
NF: Network Function
NGAP: Next Generation Application Protocol
NID: Network identifier
NITZ: Network Identity and Time Zone
NPN: Non-Public Network
NR: New Radio
NRF: Network Repository Function
NS-AoS: Network Slice Area of Service
NSAC: Network Slice Admission Control
NSACF: Network Slice Admission Control Function
NSAG: Network Slice AS Group
NSI ID: Network Slice Instance Identifier
NSSAA: Network Slice-Specific Authentication and Authorization
NSSAAF: Network Slice-specific and SNPN Authentication and Authorization Function
NSSAI: Network Slice Selection Assistance Information
NSSF: Network Slice Selection Function
NSSP: Network Slice Selection Policy
NSSRG: Network Slice Simultaneous Registration Group
NSWO: Non-Seamless WLAN offload
NSWOF: Non-Seamless WLAN offload Function
NW-TT: Network-side TSN translator
NWDAF: Network Data Analytics Function
ON-SNPN: Onboarding Standalone Non-Public Network
ONN: Onboarding Network
PCF: Policy Control Function
PDB: Packet Delay Budget
PDR: Packet Detection Rule
PDU: Protocol Data Unit
PDV: Packet Delay Variation
PEGC: PIN Element with Gateway Capability
PEI: Permanent Equipment Identifier
PEMC: PIN Element with Management Capability
PER: Packet Error Rate
PFD: Packet Flow Description
PIN: Personal IoT Network
PINE: PIN Element
PLR: Packet Loss Rate
PNI-NPN: Public Network Integrated Non-Public Network
PPD: Paging Policy Differentiation
PPF: Paging Proceed Flag
PPI: Paging Policy Indicator
PSA: PDU Session Anchor
PSDB: PDU Set Delay Budget
PSER: PDU Set Error Rate
PSIHI: PDU Set Integrated Handling Information
PTP: Precision Time Protocol
PVS: Provisioning Server
QFI: QoS Flow Identifier
QMC: QoE Measurement Collection
QoE: Quality of Experience
RACS: Radio Capabilities Signalling optimisation
RG: Residential Gateway
RIM: Remote Interference Management
RQA: Reflective QoS Attribute
RQI: Reflective QoS Indication
RSN: Redundancy Sequence Number
RTT: Round Trip Time
S-NSSAI: Single Network Slice Selection Assistance Information
SA NR: Standalone New Radio
SBA: Service Based Architecture
SBI: Service Based Interface
SCP: Service Communication Proxy
SD: Slice Differentiator
SEAF: Security Anchor Functionality
SenF: Sensing Function
SEPP: Security Edge Protection Proxy
SF: Service Function
SFC: Service Function Chain
SMF: Session Management Function
SMSF: Short Message Service Function
SN: Sequence Number
SNPN: Stand-alone Non-Public Network
SO-SNPN: Subscription Owner Standalone Non-Public Network
SSC: Session and Service Continuity
SSCMSP: Session and Service Continuity Mode Selection Policy
SST: Slice/Service Type
SUCI: Subscription Concealed Identifier
SUPI: Subscription Permanent Identifier
SV: Software Version
TA: Tracking Area
TAI: Tracking Area Identity
TNAN: Trusted Non-3GPP Access Network
TNAP: Trusted Non-3GPP Access Point
TNGF: Trusted Non-3GPP Gateway Function
TNL: Transport Network Layer
TNLA: Transport Network Layer Association
TSC: Time Sensitive Communication
TSCAC: TSC Assistance Container
TSCAI: Traffic Assistance Information
TSCTSF: Time Sensitive Communication and Time Synchronization Function
TSN: Time Sensitive Networking
TSN GM: TSN Grand Master
TSP: Traffic Steering Policy
TSS: Timing Synchronization Status
TT: TSN Translator
TWIF: Trusted WLAN Interworking Function
UAS NF: Uncrewed Aerial System Network Function
UCMF: UE radio Capability Management Function
UDM: Unified Data Management
UDR: Unified Data Repository
UDSF: Unstructured Data Storage Function
UL: Uplink
UL CL: Uplink Classifier
UPF: User Plane Function
URLLC: Ultra Reliable Low Latency Communication
URRP-AMF: UE Reachability Request Parameter for AMF
URSP: UE Route Selection Policy
VID: VLAN Identifier
VLAN: Virtual Local Area Network
W-5GAN: Wireline 5G Access Network
W-5GBAN: Wireline BBF Access Network
W-5GCAN: Wireline 5G Cable Access Network
W-AGF: Wireline Access Gateway Function

Definitions 162

(g)PTP-based Time Distribution: a method to distribute timing among entities in a (g)PTP domain using PTP messages generated by a GM (in the case the GM is external to 5GS) or by 5GS (in the case the 5GS acts as a GM for a given (g)PTP domain). Possible dependencies between (g)PTP-based Time Distribution and 5G Access Stratum-based Time Distribution are described in clause 5.27.1. The synchronization process is described in clause 5.27.1 and follows the applicable profiles of IEEE Std 802.1AS [104] or IEEE Std 1588 [126].
(Radio) Access Network: See 5G Access Network.
(S)RTP Multiplexed Media Identification Information: Component of the Packet filter information used to identify different media flows that are transported in (S)RTP, or the (S)RTCP that controls the (S)RTP transmission, when (S)RTP, (S)RTCP and other associated protocols are multiplexed into a single IP traffic flow as specified in IETF RFC 5761 [203], IETF RFC 5764 [204], IETF RFC 7983 [205], IETF RFC 8872 [206], IETF RFC 9143 [207] and IETF RFC 9443 [208].
5G Access Network: An access network comprising a NG-RAN and/or non-3GPP AN connecting to a 5G Core Network.
5G Access Stratum-based Time Distribution: A time synchronization distribution method that is used by an NG-RAN to provide the 5GS time to the UE(s) over the radio interface using procedures specified in TS 38.331 [28].
5G Core Network: The core network specified in the present document. It connects to a 5G Access Network.
5G LAN-Type Service: A service over the 5G system offering private communication using IP and/or non-IP type communications.
5G LAN-Virtual Network: A virtual network over the 5G system capable of supporting 5G LAN-type service.
5G NSWO: The 5G NSWO is the capability provided by 5G system and by UE to enable the connection to a WLAN access network using 5GS credentials without registration to 5GS.
5G QoS Flow or QoS Flow: The finest granularity for QoS forwarding treatment in the 5G System. All traffic mapped to the same 5G QoS Flow receive the same forwarding treatment (e.g. scheduling policy, queue management policy, rate shaping policy, RLC configuration, etc.). Providing different QoS forwarding treatment requires separate 5G QoS Flow.
5G QoS Identifier: A scalar that is used as a reference to a specific QoS forwarding behaviour (e.g. packet loss rate, packet delay budget) to be provided to a 5G QoS Flow. This may be implemented in the access network by the 5QI referencing node specific parameters that control the QoS forwarding treatment (e.g. scheduling weights, admission thresholds, queue management thresholds, link layer protocol configuration, etc.).
5G System: 3GPP system consisting of 5G Access Network (AN), 5G Core Network and UE.
5G VN Group: A set of UEs using private communication for 5G LAN-type service.
5G-BRG: The 5G-BRG is a 5G-RG defined in BBF.
5G-CRG: The 5G-CRG is a 5G-RG specified in DOCSIS MULPI [89].
5G-RG: A 5G-RG is a RG capable of connecting to 5GC playing the role of a UE with regard to the 5G core. It supports secure element and exchanges N1 signalling with 5GC. The 5G-RG can be either a 5G-BRG or 5G-CRG.
Access Traffic Splitting: The procedure that splits the traffic of a service data flow across multiple access networks. When traffic splitting is applied to a service data flow, some traffic of the service data flow is transferred via one access and some other traffic of the same service data flow is transferred via another access. Access traffic splitting is applicable between one 3GPP access and one non-3GPP access.
Access Traffic Steering: The procedure that selects an access network for a new service data flow and transfers the traffic of this service data flow over the selected access network. Access traffic steering is applicable between one 3GPP access and one non-3GPP access.
Access Traffic Switching: The procedure that moves all traffic of an ongoing service data flow from one access network to another access network in a way that maintains the continuity of the service data flow. Access traffic switching is applicable between one 3GPP access and one non-3GPP access.
Allowed Area: Area where the UE is allowed to initiate communication as specified in clause 5.3.2.3.
Allowed NSSAI: Indicating the S-NSSAIs values the UE could use in the Serving PLMN in the current Registration Area.
Alternative S-NSSAI: Indicating a compatible S-NSSAI for an S-NSSAI in the Allowed NSSAI that the AMF uses to replace an S-NSSAI when the S-NSSAI is not available or congested, as specified in clause 5.15.19.
AMF Region: An AMF Region consists of one or multiple AMF Sets.
AMF Set: 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. The AMF instances in the same AMF Set may be geographically distributed but have access to the same context data.
Application Identifier: An identifier that can be mapped to a specific application traffic detection rule.
AUSF Group ID: This refers to one or more AUSF instances managing a specific set of SUPIs. An AUSF Group consists of one or multiple AUSF Sets.
Backhaul PLMN/SNPN (BH PLMN/SNPN): The PLMN or SNPN serving a MWAB-UE. It can be a Terrestrial Network or a Non-Terrestrial Network.
Binding Indication: Information included by a NF service producer to a NF service consumer in request responses or notifications to convey the scope within which selection/reselection of target NF/NF Services may be performed, or information included by the NF service consumer in requests or subscriptions to convey the scope within which selection/reselection of notification targets or the selection of other service(s) that the NF consumer produces for the same data context may be performed. See clause 6.3.1.0.
BSF Group ID: This refers to one or more BSF instances managing a specific set of SUPIs or GPSIs. A BSF Group consists of one or multiple BSF Sets.
CHF Group ID: This refers to one or more CHF instances managing a specific set of SUPIs.
Configured NSSAI: NSSAI provisioned in the UE applicable to one or more PLMNs.
Credentials Holder: Entity which authenticates and authorizes access to an SNPN separate from the Credentials Holder.
Data Burst: A set of multiple PDUs generated and sent by the application in a short period of time.
Default Credentials Server (DCS): An entity that can perform authentication based on the Default UE credentials or provide means for another entity to perform authentication based on the Default UE credentials.
Default UE credentials: Information configured in the UE to make the UE uniquely identifiable and verifiably secure to perform UE onboarding.
Delegated Discovery: This refers to delegating the discovery and associated selection of NF instances or NF service instances to an SCP.
Direct Communication: This refers to the communication between NFs or NF services without using an SCP.
Disaster Condition: See definition in TS 22.261 [2].
Disaster Inbound Roamer: See definition in TS 22.261 [2].
Disaster Roaming: See definition in TS 22.261 [2].
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 registered for emergency services only over this Access Type in this PLMN.
En-gNB: as defined in TS 37.340 [31].
Endpoint Address: An address in the format of an IP address or FQDN, which is used to determine the host/authority part of the target URI. This Target URI is used to access an NF service (i.e. to invoke service operations) of an NF service producer or for notifications to an NF service consumer.
Energy Consumption: As defined in TS 28.310 [197].
Energy Efficiency: As defined in TS 28.310 [197].
Energy State: As defined in TS 22.261 [2].
Expected UE Behaviour: Set of parameters provisioned by an external party to 5G network functions on the foreseen or expected UE behaviour, see clause 5.20.
Feeder link: As defined in TS 38.300 [27].
Fixed Network Broadband Residential Gateway: A Fixed Network RG (FN-BRG) is a FN-RG specified in BBF TR124 [90].
Fixed Network Cable Residential Gateway: A Fixed Network Cable RG (FN-CRG) is a FN-RG with cable modem specified in DOCSIS MULPI [89].
Fixed Network Residential Gateway: A Fixed Network RG (FN-RG) is a RG that it does not support N1 signalling and it is not 5GC capable.
Forbidden Area: An area where the UE is not allowed to initiate communication as specified in clause 5.3.2.3.
GBR QoS Flow: A QoS Flow using the GBR resource type or the Delay-critical GBR resource type and requiring guaranteed flow bit rate.
Group ID for Network Selection (GIN): An identifier used during SNPN selection to enhance the likelihood of selecting a preferred SNPN that supports a Default Credentials Server or a Credentials Holder.
Home Network Public Key Identifier: An identifier used to indicate which public/private key pair is used for SUPI protection and de-concealment of the SUCI as specified in TS 23.003 [19].
IAB-donor: This is a NG-RAN node that supports Integrated access and backhaul (IAB) feature and provides connection to the core network to IAB-nodes. It supports the CU function of the CU/DU architecture for IAB defined in TS 38.401 [42].
IAB-node: A relay node that supports wireless in-band and out-of-band relaying of NR access traffic via NR Uu backhaul links. It supports the UE function and the DU function of the CU/DU architecture for IAB defined in TS 38.401 [42].
Indirect Communication: This refers to the communication between NFs or NF services via an SCP.
Initial Registration: UE registration in RM-DEREGISTERED state as specified in clause 5.3.2.
Intermediate SMF (I-SMF): An SMF that is inserted to support a PDU session as the UE is located in an area which cannot be controlled by the original SMF because the UPF(s) belong to a different SMF Service Area.
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).
LTE-M: a 3GPP RAT type Identifier used in the Core Network only, which is a sub-type of E-UTRA RAT type and defined to identify in the Core Network the E-UTRA when used by a UE indicating Category M.
MA PDU Session: A PDU Session that provides a PDU connectivity service, which can use one access network at a time, or simultaneously one 3GPP access network and one non-3GPP access network.
Master RAN node: A Master node as defined in TS 37.340 [31].
MINT-EPS: As defined in TS 23.122 [17].
Mobile Base Station Relay: A mobile base station acts as a relay between a UE and the 5G network. Such mobile base station relay can for example be mounted on a moving vehicle and serve UEs that can be located inside or outside the vehicle (or entering/leaving the vehicle). See description of TS 22.261 [2]. A mobile Base Station Relay is supported in 5GS with the IAB-architecture with mobility as specified in clause 5.35A and that described in TS 38.401 [42].
Mobile gNB with Wireless Access Backhauling (MWAB): A NG-RAN device comprised of a UE (MWAB-UE) and a gNB (MWAB-gNB). The MWAB provides an NR access link to UEs and connects wirelessly to the 5GC (using NR) of a PLMN or SNPN broadcasted by its cell(s), through an IP/Ethernet connectivity provided by a Backhaul (BH) PDU sessions established by the MWAB-UE via the NG-RAN of a Backhaul(BH) PLMN/SNPN. Such device may be mobile, e.g. it may be mounted on a moving vehicle and serve UEs that can be located inside or outside the vehicle (or entering/leaving the vehicle).
Mobility Pattern: Network concept of determining within the AMF the UE mobility parameters as specified in clause 5.3.2.4.
Mobility Registration Update: UE re-registration when entering new TA outside the TAI List as specified in clause 5.3.2.
MPS-subscribed UE: A UE having a USIM with MPS indication set, and having an MPS subscription in the HPLMN.
Multi-USIM UE: A UE with multiple USIMs, capable of maintaining a separate registration state with a PLMN for each USIM at least over 3GPP Access and supporting one or more of the features described in clause 5.38.
MWAB Broadcasted PLMN/SNPN: A PLMN or SNPN whose identifier a MWAB-gNB cell(s) is(are) configured to broadcast in the system information. This is a PLMN/SNPN the MWAB-gNB provides access to.
NB-IoT UE Priority: Numerical value used by the NG-RAN to prioritise between different UEs accessing via NB-IoT.
Network Function: A 3GPP adopted or 3GPP defined processing function in a network, which has defined functional behaviour and 3GPP defined interfaces.
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 Area of Service (NS-AoS): The area where a network slice is available i.e. the UE can access and get service of a particular network slice as more than zero resources are allocated to the network slice in the NG-RAN cells. This area may be, depending on the specific network slice, the whole PLMN, one or more TAs, or one or more cells when the NS-AoS does not match deployed TAs as defined in clause 5.15.18.
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.
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.
NF Service Set: A group of interchangeable NF service instances of the same service type within an NF instance. The NF service instances in the same NF Service Set have access to the same context data.
NF Set: A group of interchangeable NF instances of the same type, supporting the same services and the same Network Slice(s). The NF instances in the same NF Set may be geographically distributed but have access to the same context data.
NG-RAN: A radio access network that supports one or more of the following options with the common characteristics that it connects to 5GC:
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.
Non-3GPP Device Identifier: The Non-3GPP Device Identifier is a generic string bound to a non-3GPP device connecting behind a UE or 5G-RG enabling QoS differentiation by the 5GC for the traffic that originates from or is directed to the non-3GPP device as defined in clause 5.52.
Non-3GPP QoS Assistance Information: A set of QoS assistance information provided to the UE (e.g. PEGC) to enable the UE to perform QoS differentiation for the connected devices in the non-3GPP network behind the UE.
Non-Allowed Area: Area where the UE is allowed to initiate Registration procedure but no other communication as specified in clause 5.3.2.3.
Non-GBR QoS Flow: A QoS Flow using the Non-GBR resource type and not requiring guaranteed flow bit rate.
Non-Public Network: See definition in TS 22.261 [2].
Non-Seamless Non-3GPP offload: The offload of user plane traffic via non-3GPP access without traversing either N3IWF/TNGF or UPF.
Non-Seamless WLAN offload: Non-Seamless Non-3GPP offload when the non-3GPP access network is WLAN.
NR eRedCap: a 3GPP RAT type Identifier used in the Core Network only, which is a sub-type of NR RAT type and defined to identify in the Core Network the NR when used by a UE indicating NR eRedCap.
NR Femto Hosting Party: An NR Femto Hosting Party has a contractual relationship with the operator, related to the provision of access to the operator's network via one or more NR Femto nodes. An NR Femto Hosting Party plays the role of a CAG owner as specified in clause 5.50.
NR RedCap: a 3GPP RAT type Identifier used in the Core Network only, which is a sub-type of NR RAT type and defined to identify in the Core Network the NR when used by a UE indicating NR RedCap.
NSI ID: an identifier for identifying the Core Network part of a Network Slice instance when multiple Network Slice instances of the same Network Slice are deployed and there is a need to differentiate between them in the 5GC.
Onboarding Network: Either a PLMN enabling Remote Provisioning for a registered UE, or an Onboarding SNPN.
Onboarding Standalone Non-Public Network: An SNPN providing Onboarding access and enabling Remote Provisioning for a UE registered for Onboarding as specified in clause 4.2.2.2.4 of TS 23.502 [3].
Partially Allowed NSSAI: Indicating the S-NSSAIs values the UE could use in the Serving PLMN or SNPN in some of the TAs in the current Registration Area. Each S-NSSAI in the Partially Allowed NSSAI is associated with a list of TAs where the S-NSSAI is supported.
PCF Group ID: This refers to one or more PCF instances managing a specific set of SUPIs. A PCF Group consists of one or multiple PCF Sets.
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.
PDU Set: One or more PDUs carrying the payload of one unit of information generated at the application level (e.g. frame(s) or video slice(s) etc. for eXtended Reality (XR) Services). All the PDUs of a PDU set are transmitted within the same QoS Flow.
Pending NSSAI: NSSAI provided by the Serving PLMN during a Registration procedure, indicating the S-NSSAI(s) for which the network slice-specific authentication and authorization procedure is pending.
Periodic Registration Update: UE re-registration at expiry of periodic registration timer as specified in clause 5.3.2.
Personal IoT Network (PIN): A network with group of elements (i.e. UE or non-3GPP device) that are able to communicate with each other directly, communicate with each other via intermediate element(s), communicate with each other via 5GS, or communicate with external DN via 5GS.
PIN direct communication: The communication without traversing 5G network between two PINEs (e.g. between a PINE and a PEGC, between a PINE and a PEMC, between a PEMC and a PEGC and between two PEGCs). The communication traverses intermediate PINE(s) or not. The communication includes both the data traffic and the PIN management traffic (e.g. the data traffic between 2 PINEs or the PIN management traffic between PINE and PEMC).
PIN Element (PINE): A UE or non-3GPP device that is part of the group of elements in a PIN.
PIN Element with Gateway Capability (PEGC): A PINE with the ability to provide DN connectivity via the 5G network for other PINEs and/or a PINE with the ability to provide relay functionality for communication between PINEs. Only a UE is able to act as a PEGC. A PIN includes at least one PEGC.
PIN Element with Management Capability (PEMC): A PINE with capability to manage the PIN and the management is supported by an AF if deployed. A PIN includes at least one PEMC.
PIN indirect communication: The communication with traversing 5G network between PINEs connected to different PEGCs of the same PIN and between a PINE and a PEMC via PEGC and 5G network. The communication includes both the data traffic and the PIN management traffic (e.g. the data traffic between 2 PINEs or the PIN management traffic between PINE and PEMC).
PIN management traffic: The traffic among PINE, PEGC, PEMC and AF for PIN related to the management of PIN.
PIN-DN communication: The communication between PINE and DN via a PEGC and 5G network, as well as the communication between PEGC and DN via 5G network. The communication includes both the data traffic and the PIN management traffic (e.g. the data traffic towards the internet or the PIN management traffic towards the AF for PIN).
PLMN with Disaster Condition: A PLMN to which a Disaster Condition applies.
Pre-configured 5QI: Pre-defined QoS characteristics configured in the AN and 5GC and referenced via a non-standardized 5QI value. Corresponding to Operator-specific 5QI in TS 24.501 [47].
Primary cell: as defined in TS 36.331 [51].
Primary RAT: RAT of the Master RAN node, when Dual Connectivity is used; otherwise RAT of the RAN node.
Private communication: See definition in TS 22.261 [2].
Provisioning Server: Entity that provisions network credentials and other data in the UE to enable SNPN access.
PTP domain: As defined in IEEE Std 1588 [126].
Public network integrated NPN: A non-public network deployed with the support of a PLMN.
RAT type: Identifies the transmission technology used in the access network for both 3GPP accesses and non-3GPP Accesses, for example, NR, NB-IOT, Untrusted Non-3GPP, Trusted Non-3GPP, Trusted IEEE 802.11 Non-3GPP access, Wireline, Wireline-Cable, Wireline-BBF, etc.
Requested NSSAI: NSSAI provided by the UE to the Serving PLMN during registration.
Residential Gateway: The Residential Gateway (RG) is a device providing, for example voice, data, broadcast video, video on demand, to other devices in customer premises.
Routing Binding Indication: Information included in a request or notification and that can be used by the SCP for discovery and associated selection to of a suitable target. See clauses 6.3.1.0 and 7.1.2
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.
RRC_IDLE, RRC_CONNECTED, RRC_INACTIVE: As defined in TS 38.331 [28] and TS 38.306 [69].
SCP Domain: A configured group of one or more SCP(s) and zero or more NF instances(s). An SCP within the group can communicate with any NF instance or SCP within the same group directly, i.e. without passing through an intermediate SCP.
Secondary RAN node: A Secondary node as defined in TS 37.340 [31].
Secondary RAT: RAT of the secondary RAN node.
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 link: As defined in TS 38.300 [27]
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.
SMF Service Area: The collection of UPF Service Areas of all UPFs which can be controlled by one SMF.
SNPN access mode: A UE operating in SNPN access mode only selects stand-alone Non-Public Networks over Uu, Yt, NWu.
SNPN ID: PLMN ID and NID identifying an SNPN.
SNPN-enabled UE: A UE configured to use stand-alone Non-Public Networks.
Stand-alone Non-Public Network: A non-public network not relying on network functions provided by a PLMN
Subscribed S-NSSAI: S-NSSAI based on subscriber information, which a UE is subscribed to use in a PLMN
Subscription Owner Standalone Non-Public Network: A Standalone Non-Public Network owning the subscription of a UE and providing subscription data to the UE via a Provisioning Server during the onboarding procedure.
Survival Time: The time that an application consuming a communication service may continue without an anticipated message.
Target NSSAI: NSSAI provided by the Serving PLMN to the NG-RAN to cause the NG-RAN to attempt to steer the UE to a cell supporting the Network Slices identified by the S-NSSAIs in this NSSAI. See clause 5.3.4.3.3 for more details.
Throughput Advice: The maximum rate indicated by an intermediate network element (UPF) as specified in the IETF SCONE Protocol (draft-ietf-scone-protocol-04 [224]).
Time Sensitive Communication (TSC): A communication service that supports deterministic communication (i.e. which ensures a maximum delay) and/or isochronous communication with high reliability and availability. It is about providing packet transport with QoS characteristics such as bounds on latency, loss and reliability, where end systems and relay/transmit nodes may or may not be strictly synchronized.
TSN working domain: Synchronization domain for a localized set of devices collaborating on a specific task or work function in a TSN network, corresponding to a gPTP domain defined in IEEE 802.1AS [104].
UDM Group ID: This refers to one or more UDM instances managing a specific set of SUPIs. An UDM Group consists of one or multiple UDM Sets.
UDR Group ID: This refers to one or more UDR instances managing a specific set of SUPIs. An UDR Group consists of one or multiple UDR Sets.
UE-DS-TT Residence Time: The time taken within the UE and DS-TT to forward a packet, i.e. between the ingress of the UE and the DS-TT port in the DL direction, or between the DS-TT port and the egress of the UE in the UL direction. UE-DS-TT Residence Time is provided at the time of PDU Session Establishment by the UE to the network.
UE-Satellite-UE (UE-SAT-UE) communication: It refers to the specific case of communication between UEs under the coverage of the same or different serving satellites, using satellite access where the user traffic is transferred between the UEs without transiting through the ground segment.
UPF Service Area: An area consisting of one or more TA(s) 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.
WB-E-UTRA: In the RAN, WB-E-UTRA is the part of E-UTRA that excludes NB-IoT. In the Core Network, WB-E-UTRA also excludes LTE-M.
Wireline 5G Access Network: The Wireline 5G Access Network (W-5GAN) is a wireline AN that connects to a 5GC via N2 and N3 reference points. The W-5GAN can be either a W-5GBAN or W-5GCAN.
Wireline 5G Cable Access Network: The Wireline 5G Cable Access Network (W-5GCAN) is the Access Network defined in CableLabs.
Wireline Access Gateway Function (W-AGF): The Wireline Access Gateway Function (W-AGF) is a Network function in W-5GAN that provides connectivity to the 5G Core to 5G-RG and FN-RG.
Wireline BBF Access Network: The Wireline 5G BBF Access Network (W-5GBAN) is the Access Network defined in BBF.