Vocabulary for 3GPP Specifications : 21.905

2GSecond Generation GSM / EDGE
3GThird Generation UMTS / HS / HS+
3GPP3rd Generation Partnership Project (
4GFourth Generation LTE
5GFifth Generation NR
5G-AN5G Access Network
5G-EIR5G-Equipment Identity Register
5G-GUTI5G Globally Unique Temporary Identifier
5G-S-TMSI5G S-Temporary Mobile Subscription Identifier
5GC5G Core Network (24.301)
5GS5G System
5QI5G QoS Indicator
A-CSIAperiodic CSI
A-MPRAdditional maximum power reduction
AASActive Antenna System
ACBAccess Class Barring
ACLRAdjacent Channel Leakage Ratio
AESAdvanced Encryption Standard
AKAAuthentication and Key Agreement
AMAcknowledged Mode
AMBRAggregate Maximum Bit Rate
AMCAdaptive Modulation and Coding
AMFAccess and Mobility Management Function
ANRAutomatic Neighbour Relation
AoAAngle of Arrival
APAntenna port
ARFCNAbsolute radio-frequency channel number
ARPAllocation and Retention Priority
ASN.1Abstract Syntax Notation One
AUSFAuthentication Server Function (NR)
AWGNAdditive White Gaussian Noise
BCHBroadcast Channel
BDBlind detection
BFDBeam Failure Detection
BFRBeam Failure Recovery
BIBackoff Indicator (38.321)
BLERBlock Error Rate
BPLBeam Pair Link
BPSKBinary Phase Shift Keying
BRRSBeam Refinement Reference Signal
BRSBeam Reference Signal
BSBase Station
BSIBeam state information
BSRbuffer status report
BWPBandwidth part
CACarrier Aggregation
CBGCode Block Group
CBRAContention Based Random Access
CBSRCode Book Subset Restriction
CBWChannel band width
CCComponent carrier
CCConvolutional Code
CCAClear Channel Assessment
CCEControl channel element
CCOCell Change Order
CDMCode division multiplexing
CEChannel Estimation
CFRAContention Free Random Access
CFRAContention Free Random Access
CGICell Global ID
CHOConditional Handover
CIRChannel Impulse Response
CJTCoherent Joint Transmission
CKCipher Key
CLICross Link Interference
CMASCommercial Mobile Alert Service
CMRCodec Mode Request
CoMPCoordinated multi point (tranmission)
CORESETControl Resource Set
COTChannel Occupancy Time
CPCyclic prefix
CPControl Plane
CPECommon phase error
CPECustomer Premise Equipment
CPRICommon Public Radio Interface
CQIChannel Quality Indicator
CRBCommon resource block
CRCCyclic redundancy check
CRICSI-RS resource indicator
CRSCell-specific Reference Signal
CS-RNTIConfigured Scheduling RNTI (38.321)
CSIChannel state information
CSI-IMCSI Interference Measurement
CSI-RSChannel state information reference signal
CSMA/CAChannel Sense Multiple Access with Collision Avoidance
CSSCommon search space
CWSContention Window Size
D2DDevice to device
DAIDownlink Assignment Index
DASDistributed Antenna System
DCDual Connectivity (3x.101)
DCIDownlink control information (PDCCH)
DFSDynamic Frequency Selection
DFT-s-OFDMDiscrete Fourier Transfom spread Orthogonal Frequency Division Multiplexing
DIPDominant Interferer Proportion
DM-RSDemodulation reference signal
DRB(user) Data Radio Bearer
DRSDiscovery Reference Signal
DRXDiscontinuous Reception
DSACDomain Specific ACB
DSSDynamic Spectrum Sharing
DTXDiscontinuous Transmission
DUTDevice Under Test
DwPTSDownlink Pilot Time Slot
E-UTRANEvolved Universal Terrestrial Access Network
EABExtended Access Barring
EAPExtensible Authentication Protocol
EBBEigen based beamforming
EBFElevation Beam Forming
EDEnergy Detection
EIRPEquivalent Isotropic Radiated Power
eLAAEnhanced License Assisted Access
eMBBEnhanced Mobile Broadband
EN-DCE-UTRA - NR Dual Connectivity (37.340)
EPCEvolved Packet Core
ePDGEvolved Packet Data Gateway
EPREEnergy per resource element
EPSEvolved Packet System
ETSIEuropean Telecommunications Standards Institute
ETWSEarthquake and Tsunami Warning System
EVMError Vector Magnitude
FBEFrame Based Equipment
FBWFractional Bandwidth
FDDFrequency Division Duplex
FDRAFrequency domain resource assignment
FeLAAFurther Enhanced LAA
FLFront-Loaded (DMRS)
FOCFrequency offset correction
FOEFrequency offset estimation
FPGAField-Programmable Gate Array
FRFrequency Range
FR1Frequency range 410 MHz - 7125 MHz
FR2Frequency range 24.25 GHz – 52.6 GHz
FRCFixed Reference Channel
FTPFile Transfer Protocol
FWAFixed Wireless Access
gNBnext Generation Node B
gNB-CUgNB Central Unit (RRC, SDAP and PDCP)
gNB-DUgNB Distributed Unit (RLC, MAC and PHY layers)
GNSSGlobal Navigation Satellite System
GoBGrid of beams
GSCNGlobal Synchronization Channel Number
GTPGPRS Tunneling Protocol (29.060)
GUAMIGlobally Unique AMF Identifier (38.413)
GUMMEIGlobally Unique MME Identifier
GUTIGlobally Unique Temporary UE Identity (23.003)
HAPSHigh Altitude Platform Station
HARQHybrid Automatic Repeat Request
HFNHyper Frame Number
HLRHome Location Register
HOHand Over
HRLHandover Restriction List
HSSHome Subscriber Server
IABIntegrated Access and Backhaul
IBBIn-band Blocking
ICIIntercarrier interference
IDFTInverse Discrete Fourier Transformation
IEInformation Element
IKIntegrity Key
ILLAInner Loop Link Adaptation
IMInterference Management
IMEIInternational Mobile Equipment Identity (23.003)
IMRInterference measurement resource
IMSIP Multimedia Subsystem
IMSIInternational Mobile Subscriber Identity (31.102)
IMTInternational Mobile Communication
INT-RNTIInterruption RNTI (38.321)
IoTInternet of Things
IQIn-phase and Quadrature
IRATInter-Radio Access Technology
IRCInterference Rejection Combining (Receiver)
ISCUnified Access Control
ISDInter-sites distance
ITU RRadiocommunication Sector of the International Telecommunication Union
JT CoMPJoint transmission coordinated multipoint
KDFKey Derivation Function
LAALicense Assisted Access
LADNLocal Area Data Network
LBELoad Based Equipment
LBRMlimited buffer rate matching
LBTListen Before Talk
LCIDLogical Channel ID (38.321)
LDPCLow Density Parity Check
LILayer indicator
LMDSLocal Multipoint Distribution Service
LRRLink Recovery Request
LRRLong Range Radar
LTELong Term Evolution
LWALTE-WLAN Aggregation
LWIPLTE WLAN integration with IPSec tunnel
MACMedium Access Control (3x.321)
MAC-IMessage Authentication Code for Integrity
MBMSMultimedia Broadcast Multicast Services
MBSFNMulticast Broadcast Single Frequency Network
MCGMaster cell group
MCLMaximum Coupling Loss
MCOTMaximum Channel Occupancy Time
MCSModulation and coding scheme
MCSMission Critical Service
MECMulti-access Edge Computing
MeNBMaster eNB
MFBIMultiple Frequency Band Indicator
MIBMaster Information Block
MICOMobile Initiated Connection only (no listen to Paging)
MIMOMultiple Input Multiple Output
MMEMobility Management Entity
MMSEMinimum mean square error (Receiver)
mMTCMassive Machine Type Communications
MMTelMultimedia telephony service
MNMaster Node
MNCMobile Network Code
MOMobile Originated
MOPMaximum Output Power
MPCMultimedia Priority Service
MPEMaximum Permissible Exposure
MR-DCMulti-RAT Dual Connectivity
MRCMaximum Radio Combining
MSIMinimum System Information
MTMobile Terminated
MTCMachine Type Communication
NACKNegative Acknowledgment
NASNon Access Stratum (24.301)
NCGINR Cell Global Identifier
NCJTNon-Coherent Joint Transmission
NCRsNeighbour Cell Relations
NOMANon-Orthogonal Multiple Access
NRNew Radio Access
NRFNetwork Repository Function
NSANon Standalone
NSSAINetwork Slice Selection Assistance Information
NSSFNetwork Slice Selection Function (NR)
NTNNon-terrestrial networks
NZP CSI-RSNon-zero power CSI Reference Signal
O&MOperation and Maintenance
OAMOperations, Administration and Maintenance
OCBOccupied Channel Bandwidth
OCCOrthogonal cover code
OCNSOrthogonal Channel Noise Simulator
OEMOriginal Equipment Manufacturer
OFDMOrthogonal Frequency Division Multiplex(ing)
OLLAOuter Loop Link Adaptation
OSIOther System Information
OTAOver The Air
OTDOAObserved Time Difference Of Arrival
PAPRPeak to Average Power Ratio
PBCHPhysical Broadcast CHannel
PBRPrioritised bit rate
PCCHPaging Control Channel
PCellPrimary Cell
PCFPolicy Control Function (NR)
PCHPaging Channel
PCIPhysical Cell Identity (36.331)
PCOProtocol Configuration Options
PCRFPolicy and Charging Rules Function
PDCCHPhysical downlink control channel
PDCPPacket Data Convergence Protocol (3x.323)
PDNPacket Data Network
PDSCHPhysical downlink shared channel
PDUProtocol Data Unit
PHRPower Headroom Report
PLMNPublic Land Mobile Network
PMIPrecoding Matrix Indicator
POPaging Occasion
PPACPaging Permission with Access Control
PPDRPublic Protection and Disaster Relief
PRACHPhysical random access channel
PRBPhysical Resource Block
ProSeProximity-based Services
PRSPositioning Reference Signal
PSAPDU session anchor
PSDPower Spectral Density
PSSPrimary Synchronisation Signal
PT-RSPhase tracking reference signal
PTIPrecoding Type Indicator
PUCCHPhysical uplink control channel
PUSCHPhysical uplink shared channel
PWSPublic Warning System
QAMQuadrature Amplitude Modulation
QCLQuasi Co-Location
QFIQoS Flow Identity
QoSQuality of Service
QPSKQuadrature Phase Shift Keying
RACHRandom Access Channel
RAPIDRandom Access Preamble ID (38.321)
RARRandom Access Response
RATRadio Access Technology
RAURouting Area Update
RBResource Block
RBGResource Block Group
RDIReflective QoS flow to DRB mapping Indication
REResource Element
RedCapReduced Capability
REFSENSReference Sensitivity
REGsResource element groups
RFRadio Frequency
RFSPRAT Frequency Selection Policy
RIRank Indicator
RICRAN Intelligent Controller
RIVResource indicator value
RLCRadio Link Control (3x.322)
RLFRadio Link Failure
RLMRadio Link Monitoring
RMCReference Measurement Channel
RMRRailway Mobile Radio
RMSRoot Mean Square (value)
RMSIRemaining Minimum SI (SystemInformationBlockType1)
RNAURan Notification Area Update
RNTIRadio Network Temporary Identifier
ROHCRObust Header Compression
RQAReflective QoS Attribute
RQIReflective QoS Indication
RRCRadio Resource Control (3x.331)
RRMRadio Resource Management
RSRPReference signal received power
RSRQReference Signal Received Quality
RSSIReceived signal strength indicator
RSTDReference signal time difference
RTTRound Trip Time
RTWPReceived Total Wideband Power
RVRedundancy Version
S1Interface between E-UTRAN and the EPC (36.413)
SAStand alone
SARSegmentation and Reassembly
SARSpecific Absorption Rate
SCCSecondary Component Carrier
SCellSecondary Cell
SCGSecondary cell group
SCSSub-Carrier Spacing
SCTPStream Control Transmission Protocol
SDSlice Differentiator
SDAPService Data Adaptation Protocol
SDLSupplementary Downlink
SDUService Data Unit
SEAFSEcurity Anchor Function
SEMSpectrum Emission Mask
SFBCSpace Frequency Block Code
SFISlot format indication
SFI-RNTISlot Format Indication RNTI (38.321)
SFNSystem Frame Number
SFTDSFN and frame timing difference
SgNBSecondary gNb
SI-RNTISystem Information RNTI
SIBSystem Information Block
SINRSignal to Interference and Noise Ratio
SIPTOSelected IP Traffic Offload
SISOSingle Input Single Output
SLIVStart and length indicator value
SMFSession Management Function
SMOService Management and Orchestration
SMTCSS/PBCH Block Measurement Time Configuration
SNSecondary Node
SNSequence Number
SNRSignal-to-Noise Ratio
SONSelf-Organizing Networks
SP-CSI-RNTISemi-Persistent CSI RNTI (38.321)
SPIDService Profile Identifier
SPSSemi-Persistent Scheduling
SQNSequence Number
SRScheduling Request
SRBSignalling Radio Bearer carrying control plane data
SRIScheduling request indicator
SRISRS resource indicator
SRISatellite Radio Interface
SRRShort Range Radar
SRSSounding Reference Signal (UL)
SRVCCSingle Radio Voice Call Continuity
SSACService Specific Access Control
SSBSynchronization Signal Block
SSCSession and Service Continuity
SSSSecondary Synchronization Signal
SUCISubscription Concealed Identifier
SULSupplementary Uplink
SUPISubscription Permanent Identifier
TACTracking Area Code
TAETime Alignment Error
TAGTiming advance group
TAUTracking Area Update
TBTransport Block
TBSTransport Block Size
TCITransmission configuration indication
TDDTime Division Duplex
TDMTime division multiplexing
TDRATime Domain Resource Allocation
TEIDTunnel Endpoint Identifier
TMSITemporary Mobile Subscriber Identity
TNLTransport Network Layer
TNLATransport Network Layer Association
TOCTime offset correction
TOETime offset estimation
TPCTransmitter Power Control
TPC-CS-RNTITransmit Power Control-Configured Scheduling-RNTI (38.321)
TPC-SRS-RNTITransmit Power Control-Sounding Reference Symbols-RNTI (38.321)
TPMITransmit Precoding Matrix Indicator
TRITransmit Rank Indicator
TRPTotal Received Power
TRPTotal Radiated Power
TRPTransmit-Receive Point
TRSTracking Reference Signal (CSI-RS)
TTITransmission Time Interval
TxDivTransmit diversity
UASUnmanned Aircraft System (38.821)
UCIUplink Control Information (PUCCH)
UDMUnified Data Management (HSS)
UEUser Equipment
UEMUnwanted Emissions Mask
UL-SCHUplink Shared Channel
UMUnacknowledged Mode
UPUser Plane
UPFUser Plane Function
UPTUser Perceived Throughput
uRLLCUltra-reliable low latency communication
URSPUE Route Selection Policy
USIMUniversal Subscriber Identity Module
USSUE specific search space
UTRAUniversal Terrestrial Access Network
UwPTSUplink Pilot Time Slot
V2XVehicle to Everything
VLRVisitor Location Register
VRBVirtual resource block
WAWide Area
WLANWireless Local Area Network
X2APX2 Application Protocol (36.423)
ZFZero Forcing