24.501 v20.0.0

Words and abbreviations

201 abbreviations and 117 definitions, exactly as 24.501 declares them in its own terms clause.

Abbreviations 201

(R)AN: (Radio) Access Network
4G-GUTI: 4G-Globally Unique Temporary Identifier
5G-BRG: 5G Broadband Residential Gateway
5G-CRG: 5G Cable Residential Gateway
5G-GUTI: 5G-Globally Unique Temporary Identifier
5G-RG: 5G Residential Gateway
5G-S-TMSI: 5G S-Temporary Mobile Subscription Identifier
5G-TMSI: 5G Temporary Mobile Subscription Identifier
5GCN: 5G Core Network
5GMM: 5GS Mobility Management
5GS: 5G System
5GSM: 5GS Session Management
5QI: 5G QoS Identifier
A-KID: AKMA Key Identifier
A-TID: AKMA Temporary Identifier
ABBA: Anti-Bidding down Between Architectures
ACS: Auto-Configuration Server
AIoT: Ambient Internet of Things
AKA: Authentication and Key Agreement
AKMA: Authentication and Key Management for Applications
AMBR: Aggregate Maximum Bit Rate
AMF: Access and Mobility Management Function
ANDSP: Access Network Discovery and Selection Policy
APN: Access Point Name
AS: Access stratum
ATSSS: Access Traffic Steering, Switching and Splitting
ATSSS-LL: ATSSS Low-Layer
AUN3: Authenticable Non-3GPP
AUSF: Authentication Server Function
AVC: Advanced Video Coding
BH: BackHaul
CAG: Closed access group
CGI: Cell Global Identity
CHAP: Challenge Handshake Authentication Protocol
DDX: Downlink Data Expected
DEI: Drop Eligible Indicator
DL: Downlink
DN: Data Network
DNN: Data Network Name
DNS: Domain Name System
DS-TT: Device-Side TSN Translator
E-UTRAN: Evolved Universal Terrestrial Radio Access Network
EAC: Early Admission Control
EAP-AKA': Improved Extensible Authentication Protocol method for 3rd generation Authentication and Key Agreement
EAS: Edge Application Server
EASDF: Edge Application Server Discovery Function
ECIES: Elliptic Curve Integrated Encryption Scheme
ECN: Explicit Congestion Notification
ECS: Edge Configuration Server
ECSP: Edge Computing Service Provider
EDC: Edge DNS Client
eDRX: Extended DRX cycle
EEC: Edge Enabler Client
EMM: EPS Mobility Management
EPC: Evolved Packet Core Network
EPD: Extended Protocol Discriminator
ePDG: Evolved Packet Data Gateway
EPS: Evolved Packet System
EPS-UPIP: User-plane integrity protection in EPS
ESM: EPS Session Management
EUI: Extended Unique Identifier
FN-BRG: Fixed Network Broadband RG
FN-CRG: Fixed Network Cable RG
FN-RG: Fixed Network RG
FQDN: Fully Qualified Domain Name
GEO: Geostationary Orbit
GFBR: Guaranteed Flow Bit Rate
GUAMI: Globally Unique AMF Identifier
HEVC: High Efficiency Video Coding
HPAEOP: High Priority Access Exemption Operator Policy
IAB: Integrated access and backhaul
IMEI: International Mobile station Equipment Identity
IMEISV: International Mobile station Equipment Identity and Software Version number
IMSI: International Mobile Subscriber Identity
IP-CAN: IP-Connectivity Access Network
KSI: Key Set Identifier
L4S: Low Latency, Low Loss and Scalable Throughput
LADN: Local Area Data Network
LCS: LoCation Services
LCS-UPP: Location Services User Plane Protocol
LEO: Low Earth Orbit
LMF: Location Management Function
LP-WUS: Low Power Wake Up Signal
LP-WUSPS: Low Power Wake Up Signal with Paging Subgrouping
LPP: LTE Positioning Protocol
MA PDU: Multi-Access PDU
MAC: Message Authentication Code
MBS: Multicast/Broadcast Services
MBSR: Mobile Base Station Relay
MCS: Mission Critical Service
MEO: Medium Earth Orbit
MFBR: Maximum Flow Bit Rate
MICO: Mobile Initiated Connection Only
MID: Media Identification
MINT: Minimization of Service Interruption
MPQUIC: Multi-Path QUIC
MPQUIC-E: MPQUIC – Ethernet
MPS: Multimedia Priority Service
MPTCP: Multi-Path TCP
MSK: MBS Service Key
MTK: MBS Traffic Key
MUSIM: Multi-USIM
MWAB: Mobile gNB with Wireless Access Backhauling
N3IWF: Non-3GPP Inter-Working Function
N3QAI: Non-3GPP QoS Assistance Information
N5CW: Non-5G-Capable over WLAN
N5GC: Non-5G Capable
NAI: Network Access Identifier
NAUN3: Non-Authenticable Non-3GPP
ngKSI: Key Set Identifier for Next Generation Radio Access Network
NITZ: Network Identity and Time Zone
NPN: Non-public network
NR: New Radio
NS-AoS: Network slice area of service
NSAC: Network Slice Admission Control
NSACF: Network Slice Admission Control Function
NSAG: Network slice AS group
NSSAA: Network slice-specific authentication and authorization
NSSAAF: Network Slice-Specific and SNPN authentication and authorization Function
NSSAI: Network Slice Selection Assistance Information
NSSRG: Network Slice Simultaneous Registration Group
NTZ: No-Transmit Zone
ON-SNPN: Onboarding Standalone Non-Public Network
OS: Operating System
PAP: Password Authentication Protocol
PCO: Protocol Configuration Option
PCP: Priority Code Point
PEGC: PIN Element with Gateway Capability
PEI: Permanent Equipment Identifier
PEIPS: Paging Early Indication with Paging Subgrouping
PEMC: PIN Element with Management Capability
PG: PLMN Generic
PIN: Personal IoT Network
PINE: PIN Element
PMF: Performance Measurement Function
PNI-NPN: Public Network Integrated Non-Public Network
ProSe: Proximity based Services
ProSeP 5G: ProSe policy
PTI: Procedure Transaction Identity
PTP: Precision Time Protocol
PVS: Provisioning Server
QFI: QoS Flow Identifier
QoS: Quality of Service
QRI: QoS Rule Identifier
RACS: Radio Capability Signalling Optimisation
RFSP: RAT Frequency Selection Priority
RG: Residential Gateway
RPLMN: Registered PLMN
RQA: Reflective QoS Attribute
RQI: Reflective QoS Indication
RSC: Relay Service Code
RSN: Redundancy Sequence Number
RSNPN: Registered SNPN
RTT: Round Trip Time
S-NSSAI: Single NSSAI
SA: Security Association
SDF: Service Data Flow
SDNAEPC: Secondary DN authentication and authorization over EPC
SDT: Small Data Transmission
SGC: Service Gap Control
SLPP: SideLink Positioning Protocol
SMF: Session Management Function
SNN: Serving Network Name
SNPN: Stand-alone Non-Public Network
SOR: Steering of Roaming
SOR-CMCI: Steering of Roaming Connected Mode Control Information
SRTP: Secure Real-time Transport Protocol
SUCI: Subscription Concealed Identifier
SUPI: Subscription Permanent Identifier
TA: Tracking Area
TAC: Tracking Area Code
TAI: Tracking Area Identity
TMGI: Temporary Mobile Group Identity
TNAN: Trusted Non-3GPP Access Network
TNGF: Trusted Non-3GPP Gateway Function
TSC: Time Sensitive Communication
TSCTSF: Time Sensitive Communication and Time Synchronization Function
TSN: Time-Sensitive Networking
TWIF: Trusted WLAN Interworking Function
UAS: Uncrewed Aerial System
UAV: Uncrewed Aerial Vehicle
UAV-C: Uncrewed Aerial Vehicle-Controller
UDM: Unified Data Management
UL: Uplink
UP-PRUK: User Plane ProSe Remote User Key
UPDS: UE policy delivery service
UPF: User Plane Function
UPP-CMI: User Plane Positioning Connection Management Information
UPSC: UE Policy Section Code
UPSI: UE Policy Section Identifier
URN: Uniform Resource Name
URSP: UE Route Selection Policy
USS: UAS Service Supplier
UUAA: USS UAV Authorization/Authentication
V2X: Vehicle-to-Everything
V2XP: V2X policy
VID: VLAN Identifier
VPS: VPLMN Specific
W-AGF: Wireline Access Gateway Function
WLAN: Wireless Local Area Network
WUS: Wake-up signal

Definitions 117

4G-GUTI: A GUTI defined in 3GPP TS 24.301 [15].
5G PLMN/access technology combination with specific satellite features: A PLMN/access technology combination,
5G-EA: 5GS encryption algorithms. The term 5G-EA, 5G-EA0, 128-5G-EA1, 128-5G-EA2, 128-5G-EA3, 5G-EA4, 5G-EA5, 5G-EA6 and 5G-EA7 used in the present document corresponds to the term NEA, NEA0, 128-NEA1, 128-NEA2, 128-NEA3, NEA4, NEA5, NEA6 and NEA7 defined in 3GPP TS 33.501 [24].
5G-IA: 5GS integrity algorithms. The term 5G-IA, 5G-IA0, 128-5G-IA1, 128-5G-IA2, 128-5G-IA3, 5G-IA4, 5G-IA5, 5G-IA6 and 5G-IA7 used in the present document corresponds to the term NIA, NIA0, 128-NIA1, 128-NIA2, 128-NIA3, NIA4, NIA5, NIA6 and NIA7 defined in 3GPP TS 33.501 [24].
5GMM-CONNECTED mode: In this specification, if the term is used standalone, a UE in 5GMM-CONNECTED mode means the UE can be either in 5GMM-CONNECTED mode over 3GPP access or in 5GMM-CONNECTED mode over non-3GPP access.
5GMM-CONNECTED mode over 3GPP access: A UE is in 5GMM-CONNECTED mode over 3GPP access when an N1 NAS signalling connection between the UE and network over 3GPP access exists. The term 5GMM-CONNECTED mode over 3GPP access used in the present document corresponds to the term CM-CONNECTED state for 3GPP access used in 3GPP TS 23.501 [8].
5GMM-CONNECTED mode over non-3GPP access: A UE is in 5GMM-CONNECTED mode over non-3GPP access when an N1 NAS signalling connection between the UE and network over non-3GPP access exists. The term 5GMM-CONNECTED mode over non-3GPP access used in the present document corresponds to the term CM-CONNECTED state for non-3GPP access used in 3GPP TS 23.501 [8].
5GMM-IDLE mode: In this specification, if the term is used standalone, a UE in 5GMM-IDLE mode means the UE can be either in 5GMM-IDLE mode over 3GPP access or in 5GMM-IDLE mode over non-3GPP access.
5GMM-IDLE mode over 3GPP access: A UE is in 5GMM-IDLE mode over 3GPP access when no N1 NAS signalling connection between the UE and network over 3GPP access exists. The term 5GMM-IDLE mode over 3GPP access used in the present document corresponds to the term CM-IDLE state for 3GPP access used in 3GPP TS 23.501 [8].
5GMM-IDLE mode over non-3GPP access: A UE is in 5GMM-IDLE mode over non-3GPP access when no N1 NAS signalling connection between the UE and network over non-3GPP access exists. The term 5GMM-IDLE mode over non-3GPP access used in the present document corresponds to the term CM-IDLE state for non-3GPP access used in 3GPP TS 23.501 [8].
5GS services: Services provided by PS domain. Within the context of this specification, 5GS services is used as a synonym for EPS services.
Access stratum connection: A peer to peer access stratum connection:
Access to SNPN services via a PLMN/To access SNPN services via a PLMN: A UE is accessing SNPN services via a PLMN when the UE is connecting to the 5GCN of the SNPN using the 3GPP access of the PLMN.
Aggregate maximum bit rate: The maximum bit rate that limits the aggregate bit rate of a set of non-GBR bearers of a UE. Definition derived from 3GPP TS 23.501 [8].
Alternative NSSAI: A list of mapping information between the S-NSSAI to be replaced and the alternative S-NSSAI.
Always-on PDU session: A PDU session for which user-plane resources have to be established during every transition from 5GMM-IDLE mode to 5GMM-CONNECTED mode. A UE requests a PDU session to be established as an always-on PDU session based on indication from upper layers and the network decides whether a PDU session is established as an always-on PDU session.
Backhaul PLMN or backhaul SNPN (BH PLMN or BH SNPN): The term backhaul PLMN or backhaul SNPN (BH PLMN or BH SNPN) used in the present document corresponds to the term backhaul PLMN/SNPN (BH PLMN/SNPN) used in 3GPP TS 23.501 [8].
CAG cell: A cell in which only members of the CAG can get normal service. Depending on local regulation, the CAG cell can provide emergency services and emergency services fallback also to subscribers who are not members of the CAG.
CAG restrictions: Restrictions applied to a UE in accessing a PLMN's 5GCN via:
CAG-ID: A CAG-ID is a unique identifier within the scope of one PLMN defined in 3GPP TS 23.003 [4] which identifies a Closed Access Group (CAG) in the PLMN associated with a cell or group of cells to which access is restricted to members of the CAG.
Cleartext IEs: Information elements that can be sent without confidentiality protection in initial NAS messages as specified in clause 4.4.6.
Configuration of SNPN subscription parameters in PLMN via the user plane: Configuration of a UE in a PLMN with one or more entries of the "list of subscriber data” via the user plane.
Control plane CIoT 5GS optimization: Signalling optimizations to enable efficient transport of user data (IP, Ethernet, Unstructured or SMS) over control plane via the AMF including optional header compression of IP data and Ethernet data.
Current TAI: A TAI of a selected PLMN broadcast in the cell on which the UE is camping. If the cell is a satellite NG-RAN cell broadcasting multiple TACs of the selected PLMN, the UE NAS layer selects the current TAI from these multiple TACs of the selected PLMN as specified in clause 4.23.5.
Default S-NSSAI: An S-NSSAI in the subscribed S-NSSAIs marked as default.
DNN based congestion control: Type of congestion control at session management level that is applied to reject session management requests from UEs or release PDU sessions when the associated DNN is congested. DNN based congestion control can be activated at the SMF over session management level and also activated at the AMF over mobility management level.
DNN determined by the AMF: If no DNN requested by the UE is provided, a DNN determined by the AMF based subscription information or local policy. Otherwise DNN determined by the AMF is the DNN requested by the UE.
DNN requested by the UE: A DNN explicitly requested by the UE and included in a NAS request message.
DNN selected by the network: If DNN replacement applies, a DNN selected and indicated to the AMF by PCF. Otherwise DNN selected by the network is the DNN determined by the AMF.
Emergency PDU session: A PDU session established with the request type "initial emergency request" or "existing emergency PDU session".
General NAS level congestion control: Type of congestion control at mobility management level that is applied at a general overload or congestion situation in the network, e.g. lack of processing resources.
Globally-unique SNPN identity: An SNPN identity with an NID whose assignment mode is not set to 1 (see 3GPP TS 23.003 [4]).
Home country: The country of the HPLMN (see 3GPP TS 23.122 [5] for the definition of country).
HPLMN S-NSSAI: An S-NSSAI applicable in the HPLMN without any further mapping by the network. If the UE has an EHPLMN list which is not empty, then the HPLMN S-NSSAIs are applicable without any further mapping in the PLMN whose PLMN code is derived from the IMSI, regardless of whether or not this PLMN is included in the EHPLMN list.
In NB-N1 mode: Indicates this paragraph applies only to a system which operates in NB-N1 mode. For a multi-access system this case applies if the current serving radio access network provides access to network services via E-UTRA connected to 5GCN by NB-IoT (see 3GPP TS 36.300 [25B], 3GPP TS 36.331 [25A], 3GPP TS 36.306 [25D]).
In WB-N1 mode: Indicates this paragraph applies only to a system which operates in WB-N1 mode. For a multi-access system this case applies if the system operates in N1 mode with E-UTRA connected to 5GCN, but not in NB-N1 mode.
In WB-N1/CE mode: Indicates this paragraph applies only when a UE, which is a CE mode B capable UE (see 3GPP TS 36.306 [25D]), is operating in CE mode A or B in WB-N1 mode.
Initial NAS message: A NAS message is considered as an initial NAS message, if this NAS message can trigger the establishment of an N1 NAS signalling connection. For instance, the REGISTRATION REQUEST message is an initial NAS message.
Initial registration for disaster roaming services: A registration performed with 5GS registration type "disaster roaming initial registration" in the REGISTRATION REQUEST message.
Initial registration for emergency services: A registration performed with 5GS registration type "emergency registration" in the REGISTRATION REQUEST message.
Initial registration for onboarding services in SNPN: A registration performed with 5GS registration type "SNPN onboarding registration" in the REGISTRATION REQUEST message.
Initial small data rate control parameters: Parameters that, if received by the UE during the establishment of a PDU session, are used as initial parameters to limit the allowed data for the PDU session according to small data rate control after establishment of a PDU session as described in clause 6.2.13. At expiry of the associated validity period, the initial small data rate control parameters are no longer valid and the small data rate control parameters apply.
Initial small data rate control parameters for exception data: Parameters corresponding to initial small data rate control parameters for small data rate control of exception data.
IP PDU session type: The type of PDU session which can only be IPv4, IPv6 or IPv4v6.
Last visited registered TAI: A TAI which is contained in the registration area that the UE registered to the network and which identifies the tracking area last visited by the UE. If the cell is a satellite NG-RAN cell broadcasting multiple TAIs, a TAI which is contained in the registration area that the UE registered to the network and last selected by the UE as the current TAI.
Local release: Release of a PDU session without peer-to-peer signalling between the network and the UE.
Mapped 5G-GUTI: A 5G-GUTI which is mapped from a 4G-GUTI previously allocated by an MME. Mapping rules are defined in 3GPP TS 23.003 [4].
Mapped S-NSSAI: An S-NSSAI in the subscribed S-NSSAIs for the HPLMN or the subscribed SNPN, to which an S-NSSAI of the registered PLMN (in roaming scenarios and in certain EHPLMNs, as specified in clause 4.6.1) or the registered non-subscribed SNPN is mapped.
MBSR-UE: a UE that is operating as a MBSR and supporting UE NAS functionalities specified in this specification.
Mobility registration for disaster roaming services: A registration performed with 5GS registration type "disaster roaming mobility registration updating" in the REGISTRATION REQUEST message.
MPQUIC functionality: MPQUIC functionality is multi-path QUIC functionality when tunneling bidirectional and unreliable datagrams through an HTTP server acting as a proxy.
MPQUIC-E functionality: MPQUIC functionality if the tunneling is for Ethernet frame communication as defined in draft-ietf-masque-connect-ethernet [77].
MPQUIC-IP functionality: MPQUIC functionality if the tunneling is for IP packet communication as defined in IETF RFC 9484 [76].
MPQUIC-UDP functionality: MPQUIC functionality if the tunneling is for UDP packet communication as defined in IETF RFC 9298 [75].
MUSIM UE: A UE with multiple valid USIMs, capable of initiating and maintaining simultaneous separate registration states over 3GPP access with PLMN(s) using identities and credentials associated with those USIMs and supporting one or more of the N1 NAS signalling connection release, the paging indication for voice services, the reject paging request, the paging restriction and the paging timing collision control (see 3GPP TS 23.501 [8]).
MWAB broadcasted PLMN or MWAB broadcasted SNPN: The term MWAB broadcasted PLMN or MWAB broadcasted SNPN used in the present document corresponds to the term MWAB broadcasted PLMN/SNPN used in 3GPP TS 23.501 [8].
MWAB-UE: a UE that is operating as part of MWAB and supporting UE NAS functionalities specified in this specification.
N1 mode: A mode of a UE allowing access to the 5G core network via the 5G access network.
N1 NAS signalling connection: A peer to peer N1 mode connection between UE, 5G-RG, TWIF acting on behalf of the N5CW device, W-AGF acting on behalf of the FN-RG, or W-AGF acting on behalf of the N5GC device and AMF. An N1 NAS signalling connection is the concatenation of an access stratum connection and an NG connection via the N2 reference point.
N5CW device supporting 3GPP access: An N5CW device which supports acting as a UE in 3GPP access (i.e. which supports NAS over 3GPP access).
N6 PDU session: A PDU session established between the UE and the User Plane Function (UPF) for transmitting the UE's IP data, Ethernet data or Unstructured data related to a specific application.
Native 4G-GUTI: A native GUTI defined in 3GPP TS 24.301 [15].
Native 5G-GUTI: A 5G-GUTI previously allocated by an AMF.
NEF PDU session: A PDU session established between the UE and the Network Exposure Function (NEF) for transmitting the UE's Unstructured data related to a specific application.
Network slicing information: information stored at the UE consisting of one or more of the following:
NG-RAN cell: A cell with NG-RAN access technology or satellite NG-RAN access technology.
NITZ information: Network identity and time zone (NITZ) information includes full name for network, short name for network, local time zone, universal time and local time zone, network daylight saving time.
Non 5G capable over WLAN (N5CW) device: A device that is not capable to operate as a UE supporting NAS signalling with the 5GCN over a WLAN access network. However, this device may be capable to operate as a UE supporting NAS signalling with 5GCN using the N1 reference point as specified in this specification over 3GPP access. An N5CW device may be allowed to access the 5GCN via trusted WLAN access network (TWAN) that supports a trusted WLAN interworking function (TWIF) as specified in 3GPP TS 24.502 [18].
Non-3GPP device: A device that does not support NAS signalling and is not authenticated by 5GC.
Non-CAG Cell: An NR cell which does not broadcast any Closed Access Group identity or an E-UTRA cell connected to 5GCN.
Non-cleartext IEs: Information elements that are not cleartext IEs.
Non-emergency PDU session: Any PDU session which is not an emergency PDU session.
Non-equivalent PLMN: A PLMN which is not an equivalent PLMN.
Non-equivalent SNPN: An SNPN which is not an equivalent SNPN.
Non-globally-unique SNPN identity: An SNPN identity with an NID whose assignment mode is set to 1 (see 3GPP TS 23.003 [4]).
Non-satellite NG-RAN cell: A cell with NG-RAN access technology.
On-demand NSSAI: A list of on-demand S-NSSAI(s) and optionally slice deregistration inactivity timer per on-demand S-NSSAI.
On-demand S-NSSAI: An S-NSSAI included in the configured NSSAI that the UE supporting network slice usage control is allowed to request only when this S-NSSAI is used by the UE to establish a PDU session for user data transmission.
Onboarding SUCI: SUCI derived from onboarding SUPI.
Onboarding SUPI: SUPI with the SUPI format "network specific identifier" containing a network specific identifier or with the SUPI format "IMSI" containing an IMSI, derived by a UE in SNPN access operation mode, from default UE credentials for primary authentication and used to identify the UE during initial registration for onboarding services in SNPN and while registered for onboarding services in SNPN.
Partially rejected NSSAI: Indicating the S-NSSAI(s) is rejected by the network in some TA(s) but not all TAs of the registration area. Each S-NSSAI in the partially rejected NSSAI is associated with a list of TAs where the S-NSSAI is rejected.
PDU address: An IP address assigned to the UE by the packet data network.
PDU session for LADN: A PDU session with a DNN associated with an LADN or a PDU session with a DNN and an S-NSSAI associated with an LADN.
PDU session with suspended user-plane resources: A PDU session for which user-plane resources were established or re-established, and for which data radio bearers were suspended when transition to 5GMM-CONNECTED mode with RRC inactive indication.
Persistent PDU session: Either a non-emergency PDU session contains a GBR QoS flow with QoS equivalent to QoS of teleservice 11 and where there is a radio bearer associated with that PDU session over 3GPP access, or an emergency PDU session where there is a radio bearer associated with that PDU session over 3GPP access.
PLMN ID representing the participating operator: A PLMN ID broadcasted in the area of indirect network sharing deployment to enable the UE of the participating operator to select it based on the existing PLMN selection procedures as specified in 3GPP TS 23.122 [5]. PLMN ID representing the participating operator can be:
Procedure transaction identity: An identity which is dynamically allocated by the UE for the UE-requested 5GSM procedures or allocated by the UE or the PCF for the UE policy delivery procedures. The procedure transaction identity is released when the procedure is completed but it should not be released immediately.
RAT frequency selection priority index: A parameter provided by the AMF to the NG-RAN via the N2 reference point. The AMF selects an RFSP index for a particular UE based on the subscribed RFSP index, the locally configured operator's policies, the allowed NSSAI, the partially allowed NSSAI, the partially rejected NSSAI, the rejected NSSAI for the current registration area, the pending NSSAI and the UE context information, including the UE's usage setting, if received during the registration procedure. Definition derived from 3GPP TS 23.501 [8].
Registered for 5GS services with CIoT 5GS optimization: A UE is registered for 5GS services with control plane CIoT 5GS optimization or registered for 5GS services with user plane CIoT 5GS optimization.
Registered for 5GS services with control plane CIoT 5GS optimization: A UE supporting CIoT 5GS optimizations is registered for 5GS services, and control plane CIoT 5GS optimization along with one or more other CIoT 5GS optimizations have been accepted by the network.
Registered for 5GS services with user plane CIoT 5GS optimization: A UE supporting CIoT 5GS optimizations is registered for 5GS services, and user plane CIoT 5GS optimization along with one or more other CIoT 5GS optimizations have been accepted by the network.
Registered for disaster roaming services: A UE is considered as "registered for disaster roaming services" when it has successfully completed initial registration or mobility registration for disaster roaming services.
Registered for emergency services: A UE is considered as "registered for emergency services" when it has successfully completed initial registration for emergency services, or when the UE receives the CONFIGURATION UPDATE COMMAND message including 5GS registration result IE with emergency registered bit set to "Registered for emergency services".
Registered for onboarding services in SNPN: A UE is considered as "registered for onboarding services in SNPN" when it has successfully completed initial registration for onboarding services in SNPN. While registered for onboarding services in SNPN, services other than the onboarding services are not available.
Registered PLMN: The PLMN on which the UE performed the last successful registration. The identity of the registered PLMN (MCC and MNC) is provided to the UE within the GUAMI field of the 5G-GUTI.
Rejected NSSAI: Rejected NSSAI for the current PLMN or SNPN, rejected NSSAI for the current registration area, rejected NSSAI for the failed or revoked NSSAA or rejected NSSAI for the maximum number of UEs reached.
Rejected NSSAI for the current PLMN or SNPN: A set of S-NSSAI(s) which was included in the requested NSSAI by the UE and is sent by the AMF with the rejection cause "S-NSSAI not available in the current PLMN or SNPN".
Rejected NSSAI for the current registration area: A set of S-NSSAI(s) which was included in the requested NSSAI by the UE and is sent by the AMF with the rejection cause "S-NSSAI not available in the current registration area".
Rejected NSSAI for the failed or revoked NSSAA: A set of S-NSSAI(s) which is sent by the AMF with the rejection cause "S-NSSAI not available due to the failed or revoked network slice-specific authentication and authorization".
Rejected NSSAI for the maximum number of UEs reached: A set of S-NSSAI(s) which was included in the requested NSSAI by the UE and is sent by the AMF with the rejection cause "S-NSSAI not available due to maximum number of UEs reached".
Removal of eCall only mode restriction: All the limitations as described in 3GPP TS 22.101 [2] for the eCall only mode do not apply any more.
S-NSSAI based congestion control: Type of congestion control at session management level that is applied to reject session management requests from UEs or release PDU sessions when the associated S-NSSAI and optionally the associated DNN are congested. S-NSSAI based congestion control can be activated at the SMF over session management level and also activated at the AMF over mobility management level.
Satellite NG-RAN cell: A cell with satellite NG-RAN access technology.
Satellite NG-RAN RAT type: In case of satellite NG-RAN access, RAT types are used to distinguish different types of satellite NG-RAN access, as defined in 3GPP TS 38.413 [31]. In this version of the specification, the defined satellite NG-RAN RAT types are "NR(LEO)", "NR(MEO)" and "NR(GEO)".
Selected core network type information: A type of core network (EPC or 5GCN) selected by the UE NAS layer in case of an E-UTRA cell connected to both EPC and 5GCN.
SNPN access operation mode: A UE operating in SNPN access operation mode only selects SNPNs. This includes the case when the UE is accessing an SNPN over 3GPP access, the case when the UE is accessing an SNPN over non-3GPP access and the case where the UE is accessing SNPN services via a PLMN
UE configured for high priority access in selected PLMN: A UE configured with one or more access identities equal to 1, 2, or 11-15 applicable in the selected PLMN as specified in clause 4.5.2. Definition derived from 3GPP TS 22.261 [3].
UE configured for high priority access in selected SNPN: A UE configured with one or more access identities equal to 1, 2, or 11-15 applicable in the selected SNPN as specified in clause 4.5.2A.
UE operating in single-registration mode in a network supporting N26 interface: A UE, supporting both N1 mode and S1 mode. During the last attach, tracking area update (see 3GPP TS 24.301 [15]) or registration procedures, the UE has received either a 5GS network feature support IE with IWK N26 bit set to "interworking without N26 interface not supported" or an EPS network feature support IE with IWK N26 bit set to "interworking without N26 interface not supported".
UE policy section identifier: A UE policy section identifier (UPSI) is an identifier of a UE policy section, which is composed of the MCC and MNC of:
UE supporting CIoT 5GS optimizations: A UE that supports control plane CIoT 5GS optimization or user plane CIoT 5GS optimization and one or more other CIoT 5GS optimizations when the UE is in N1 mode.
UE supporting UAS services: A UE which supports an aerial vehicle, such as a drone, with an onboard or built-in USIM and is able to perform UE NAS functionalities specified in this specification. Upper layers of the UE supporting UAS services are responsible for UAS related procedures, such as UUAA and C2 authorization, for which the NAS layer of the UE supporting UAS services performs the necessary NAS procedures.
UE using 5GS services with control plane CIoT 5GS optimization: A UE that is registered for 5GS services with the control plane CIOT 5GS optimization accepted by the network.
User plane CIoT 5GS optimization: Signalling optimizations to enable efficient transport of user data (IP, Ethernet or Unstructured) over the user plane.
User Plane Positioning Connection Management Information (UPP-CMI): The messages defined in clause 6 of 3GPP TS 24.572 [64] that are utilized to manage the user plane connection between the UE and the LMF for LCS-UPP.
User-plane resources: Resources established between the UE and the UPF. The user-plane resources consist of one of the following:
W-AGF acting on behalf of the N5GC device: A W-AGF that enables an N5GC device behind a 5G-CRG or an FN-CRG to connect to the 5G Core.