For the purposes of the present document, the following terms and definitions apply:
Allowed CAG list:
A cell that satisfies certain conditions as specified in clause 4.5
A per-PLMN list of CAG Identifiers the UE is allowed to access (see TS 23.501
One or more PLMN(s) for which the UE has found at least one cell and read its PLMN identity(ies).
One or more SNPN(s) for which the UE has found at least one cell and read its SNPN identity(ies).
A cell a UE is not allowed to camp on.
A cell broadcasting at least one Closed Access Group Identifier.
Camped on a cell:
UE has completed the cell selection/reselection process and has chosen a cell. The UE monitors system information and (in most cases) paging information.
Camped on any cell:
UE is in idle mode and has completed the cell selection/reselection process and has chosen a cell irrespective of PLMN identity.
Closed Access Group Identifier:
Identifier of a CAG within a PLMN.
Commercial Mobile Alert System:
Public Warning System that delivers Warning Notifications provided by Warning Notification Providers to CMAS capable UEs.
eCall Only Mode:
A UE configuration option that allows the UE to register at 5GC and register in IMS to perform only eCall Over IMS, and a non-emergency IMS call for test and/or terminal reconfiguration services.
Equivalent PLMN list:
Any of the PLMN entries contained in the Equivalent HPLMN list TS 23.122
List of PLMNs considered as equivalent by the UE for cell selection, cell reselection, and handover according to the information provided by the NAS.
A PLMN where the Mobile Country Code (MCC) and Mobile Network Code (MNC) of the PLMN identity are the same as the MCC and MNC of the IMSI.
A cell that has higher priority than other cells for cell reselection for HSDN capable UE in a High-mobility state.
Identifier of an SNPN in combination with a PLMN ID (TS 23.501
A network deployed for non-public use, as defined in TS 22.261
An NG-RAN consisting of gNBs, which provides non-terrestrial NR access to UEs by means of an NTN payload embarked on an airborne or space-borne NTN vehicle and an NTN Gateway.
NR sidelink communication:
NR sidelink discovery:
AS functionality enabling at least V2X Communication as defined in TS 23.287
, and ProSe communication (including ProSe non-Relay and UE-to-Network Relay communication) as defined in TS 23.304
, between two or more nearby UEs, using NR technology but not traversing any network node.
AS functionality enabling ProSe non-Relay Discovery and ProSe UE-to-Network Relay discovery for Proximity based Services as defined in TS 23.304
between two or more nearby UEs, using NR technology but not traversing any network node.
A local action in the UE invoked by an RRC procedure or an RRC_IDLE or RRC_INACTIVE state procedure.
Quasi-earth fixed cell:
An NTN cell fixed with respect to a certain geographic area on the earth during a certain time duration. This can be provisioned by beam(s) covering one geographic area for a limited period and a different geographic area during another period (e.g., the case of NGSO satellites generating steerable beams).
Radio Access Technology:
Type of technology used for radio access, for instance NR or E-UTRA.
(NAS) registration area is an area in which the UE may roam without a need to perform location registration, which is a NAS procedure.
This is the PLMN on which certain Location Registration outcomes have occurred, as specified in TS 23.122
This is the SNPN on which certain Location Registration outcomes have occurred, as specified in TS 23.122
A cell on which camping is not allowed, except for particular UEs, if so indicated in the system information.
This is the PLMN that has been selected by the NAS, either manually or automatically.
This is the SNPN that has been selected by the NAS, either manually or automatically.
The cell on which the UE is camped.
SNPN Access Mode:
UE to UE interface for V2X sidelink communication defined in TS 23.287
Mode of operation wherein UE only selects SNPNs (as defined in TS 23.501
An identifier of an SNPN comprising of a PLMN ID and an NID combination.
The cell on a particular frequency that is considered strongest according to the layer 1 cell search procedure (TS 38.213
, TS 38.215
U2N Relay UE:
This is a cell on which a UE may camp. For NR cell, the criteria are defined in clause 4.5
, for E-UTRA cell in TS 36.304
a UE that provides functionality to support connectivity to the network for U2N Remote UE(s).
U2N Remote UE:
a UE that communicates with the network via a U2N Relay UE.
V2X sidelink communication:
AS functionality enabling V2X Communication as defined in TS 23.285
, between nearby UEs, using E-UTRA technology but not traversing any network node.
For the purposes of the present document, the abbreviations given in TR 21.905
and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905
Closed Access Group
Closed Access Group Identifier
Commercial Mobile Alert System
Downlink Control Information
Earthquake and Tsunami Warning System
Evolved UMTS Terrestrial Radio Access
Evolved UMTS Terrestrial Radio Access Network
Group ID for Network selection
Hyper System Frame Number
Human-Readable Network Name
High Speed Dedicated Network
Integrated Access and Backhaul
International Mobile Subscriber Identity
MBS Frequency Selection Area Identity
Mobile Country Code
MBS Control Channel
Mobile Initiated Connection Only
MBS Radio Bearer
MBS Traffic Channel
NR Radio Access
Network Slice AS Group
Paging Early Indication
Paging Early Indication-Occasion
Public Land Mobile Network
Paging Time Window
Radio Access Technology
RAN-based Notification Area
RAN-based Notification Area Update
Radio Resource Control
Small Data Transmission
Stand-alone Non-Public Network
Tracking Reference Signal
Unified Access Control
Universal Mobile Telecommunications System
Vehicle to Everything