2G2nd Generation
3G3rd Generation
3GPPThird Generation Partnership Project
8-PSK8-state Phase Shift Keying
A-SGWAccess Signalling Gateway
A3Authentication algorithm A3
A38A single algorithm performing the functions of A3 and A8
A5/1Encryption algorithm A5/1
A5/2Encryption algorithm A5/2
A5/XEncryption algorithm A5/0-7
A8Ciphering key generating algorithm A8
AALATM Adaptation Layer
AAL2ATM Adaptation Layer type 2
AAL5ATM Adaptation Layer type 5
ABAccess Burst
ACAccess Class (C0 to C15)
Access Condition
Application Context
Authentication Centre
ACCAutomatic Congestion Control
ACELPAlgebraic Code Excited Linear Prediction
ACCHAssociated Control Channel
ACIRAdjacent Channel Interference Ratio
ACLRAdjacent Channel Leakage Power Ratio
ACMAccumulated Call Meter
Address Complete Message
ACMmaxACM (Accumulated Call Meter) maximal value
ACSAdjacent Channel Selectivity
ACUAntenna Combining Unit
ADCAdministration Centre
Analogue to Digital Converter
ADFApplication Dedicated File
ADMAccess condition to an EF which is under the control of the authority which creates this file
ADNAbbreviated Dialling Numbers
ADPCMAdaptive Differential Pulse Code Modulation
AEApplication Entity
AECAcoustic Echo Control
AEFAdditional Elementary Functions
AESAATM End System Address
AFCAutomatic Frequency Control
AGCHAccess Grant CHannel
AiAction indicator
AIAcquisition Indicator
AICHAcquisition Indicator Channel
AIDApplication IDentifier
AIURAir Interface User Rate
AKAnonymity key
ALCAPAccess Link Control Application Protocol
ALSIApplication Level Subscriber Identity
AMAcknowledged Mode
AMFAuthentication Management Field
AMRAdaptive Multi Rate
AMR-WBAdaptive Multi Rate Wide Band
ANAccess Network
AoCAdvice of Charge
AoCCAdvice of Charge Charging
AoCIAdvice of Charge Information
APAccess preamble
APDUApplication Protocol Data Unit
APIApplication Programming Interface
APNAccess Point Name
ARFCNAbsolute Radio Frequency Channel Number
ARPAddress Resolution Protocol
ARQAutomatic Repeat Request
ASAccess Stratum
ASCAccess Service Class
ASCIAdvanced Speech Call Items
ASEApplication Service Element
ASN.1Abstract Syntax Notation One
ATcommand ATtention Command
ATMAsynchronous Transfer Mode
ATRAnswer To Reset
ATT(flag) Attach
AUAccess Unit
AuCAuthentication Centre
AUTNAuthentication token
AWGNAdditive White Gaussian Noise
B-ISDNBroadband ISDN
BABCCH Allocation
BAICBarring of All Incoming Calls
BAOCBarring of All Outgoing Calls
BCCBase Transceiver Station (BTS) Colour Code
BCCHBroadcast Control Channel
BCDBinary Coded Decimal
BCFBase station Control Function
BCFEBroadcast Control Functional Entity
BCHBroadcast Channel
BCIEBearer Capability Information Element
BERBit Error Ratio
BFIBad Frame Indication
BGBorder Gateway
BGTBlock Guard Time
BIall Barring of Incoming call
BICBaseline Implementation Capabilities
BIC-RoamBarring of Incoming Calls when Roaming outside the home PLMN country
BIDBinding Identity
BLERBlock Error Ratio
BmFull-rate traffic channel
BMCBroadcast/Multicast Control
BNBit Number
BOall Barring of Outgoing call
BOCBell Operating Company
BOICBarring of Outgoing International Calls
BOIC-exHCBarring of Outgoing International Calls except those directed to the Home PLMN Country
BPSKBinary Phase Shift Keying
BSBase Station
Basic Service (group)
Bearer Service
BSGBasic Service Group
BSCBase Station Controller
BSICBase transceiver Station Identity Code
BSIC-NCELLBSIC of an adjacent cell
BSSBase Station Subsystem
BSSAPBase Station Subsystem Application Part
BSSGPBase Station Subsystem GPRS Protocol
BSSMAPBase Station Subsystem Management Application Part
BSSOMAPBase Station Subsystem Operation and Maintenance Application Part
BTFDBlind Transport Format Detection
BTSBase Transceiver Station
BVCBSS GPRS Protocol Virtual Connection
BVCIBSS GPRS Protocol Virtual Connection Identifier
BWTBlock Waiting Time
C-RNTICell Radio Network Temporary Identity
CACapacity Allocation
Cell Allocation
Certification Authority
CAACapacity Allocation Acknowledgement
CAICharge Advice Information
CAMELCustomised Application for Mobile network Enhanced Logic
CAPCAMEL Application Part
CBCell Broadcast
CBCCell Broadcast Centre
Cipher Block Chaining
CBCHCell Broadcast CHannel
CBMICell Broadcast Message Identifier
CBRConstant Bit Rate
CBSCell Broadcast Service
CCCall Control
Country Code
CC/PPComposite Capability/Preference Profiles
CCBSCompletion of Calls to Busy Subscriber
CCCHCommon Control Channel
CCFCall Control Function
CCHControl Channel
CCICapability / Configuration Identifier
CCITTComité Consultatif International Télégraphique et Téléphonique (The International Telegraph and Telephone Consultative Committee)
CCKCorporate Control Key
CCMCertificate Configuration Message
Current Call Meter
CCPCapability/Configuration Parameter
CCPCHCommon Control Physical Channel
CCTrCHCoded Composite Transport Channel
CDCapacity Deallocation
Collision Detection
CDACapacity Deallocation Acknowledgement
CDCHControl-plane Dedicated CHannel
CDMACode Division Multiple Access
CDRCharging Data Record
CDURChargeable DURation
CEDcalled station identifier
CEIRCentral Equipment Identity Register
CENDend of charge point
CEPTConférence des administrations Européennes des Postes et Telecommunications
CFConversion Facility
all Call Forwarding services
CFBCall Forwarding on mobile subscriber Busy
CFNConnection Frame Number
CFNRcCall Forwarding on mobile subscriber Not Reachable
CFNRyCall Forwarding on No Reply
CFUCall Forwarding Unconditional
CGICommon Gateway Interface
Cell Global Identifier
CHAPChallenge Handshake Authentication Protocol
CHPCHarging Point
CHVCard Holder Verification information
CICell Identity
CUG index
CIMCommon Information Model
CIRCarrier to Interference Ratio
CKCipher Key
CKSNCiphering Key Sequence Number
CLICalling Line Identity
CLIPCalling Line Identification Presentation
CLIRCalling Line Identification Restriction
CMConnection Management
CMIPCommon Management Information Protocol
CMISECommon Management Information Service
CMMChannel Mode Modify
CNCore Network
Comfort Noise
CNAPCalling Name Presentation
CNGCalling Tone
CNLCo-operative Network List
CLNPConnectionless network protocol
CLNSConnectionless network service
COLICOnnected Line Identity
COLPCOnnected Line identification Presentation
COLRCOnnected Line identification Restriction
CONNACKConnect Acknowledgement
CONSConnection-oriented network service
CORBACommon Object Request Broker Architecture
CP-AdminCertificate Present (in the MExE SIM)-Administrator
CP-TPCertificate Present (in the MExE SIM)-Third Party
CPICHCommon Pilot Channel
CPCHCommon Packet Channel
CPCSCommon Part Convergence Sublayer
CPSCommon Part Sublayer
CPUCentral Processing Unit
C/RCommand/Response field bit
CRCCyclic Redundancy Check
CRECall Ree-establishment procedure
CRNCControlling Radio Network Controller
CS-GWCircuit Switched Gateway
CSCircuit Switched
Coding Scheme
CSCFCall Server Control Function
CSDCircuit Switched Data
CSECamel Service Environment
CSPDNCircuit Switched Public Data Network
CTCall Transfer supplementary service
Channel Tester
Channel Type
CTCHCommon Traffic Channel
CTDMACode Time Division Multiple Access
CTMCellular Text telephone Modem
CTRCommon Technical Regulation
CTSCordless Telephony System
CUGClosed User Group
CWCall Waiting
Continuous Wave (unmodulated signal)
CWICharacter Waiting Integer
CWTCharacter Waiting Time

DACDigital to Analog Converter
DADDestination ADress
DAMDECT Authentication Module
DBDummy Burst
DCDedicated Control (SAP)
DCADynamic Channel Allocation
DCCHDedicated Control Channel
DCEData Circuit terminating Equipment
DCFData Communication Function
DCHDedicated Channel
DCNData Communication Network
DCS1800Digital Cellular Network at 1800MHz
DDIDirect Dial In
DECTDigital Enhanced Cordless Telecommunications
DFDedicated File
DHCPDynamic Host Configuration Protocol
DHODiversity Handover
diff-servDifferentiated services
DLData Layer
Downlink (Forward Link)
DLCIData Link Connection Identifier
DLDData Link Discriminator
DmControl channel (ISDN terminology applied to mobile service)
DMRDigital Mobile Radio
DMTFDistributed Management Task Force
DNDestination Network
DNICData Network Identifier
DNSDirectory Name Service
DOData Object
DPDial/Dialled Pulse
DPCCHDedicated Physical Control Channel
DPCHDedicated Physical Channel
DPDCHDedicated Physical Data Channel
DRACDynamic Resource Allocation Control
DRNCDrift Radio Network Controller
DRXDiscontinuous Reception
DS-CDMADirect-Sequence Code Division Multiple Access
DSCHDownlink Shared Channel
DSEData Switching Exchange
DSIDigital Speech Interpolation
DSS1Digital Subscriber Signalling No1
DTAPDirect Transfer Application Part
DTCHDedicated Traffic Channel
DTEData Terminal Equipment
DTMFDual Tone Multiple Frequency
DTXDiscontinuous Transmission
E-HLREnhanced HLR
EAExternal Alarms
EBSGElementary Basic Service Group
ECMError Correction Mode (facsimile)
Ec/NoRatio of energy per modulating bit to the noise spectral density
ECSDEnhanced CSD
ECTExplicit Call Transfer supplementary service
ECTRAEuropean Committee of Telecommunications Regulatory Affairs
EDCError Detection Code byte
EDGEEnhanced Data rates for GSM Evolution
EELElectric Echo Loss
EFREnhanced Full Rate
EFSError free seconds
EIREquipment Identity Centre
Equipment Identity Register
EIRPEquivalent Isotropic Radiated Power
ELEcho Loss
EFElementary File
EMElement Manager
EMCElectroMagnetic Compatibility
eMLPPenhanced Multi-Level Precedence and Pre-emption
EMMIElectrical Man Machine Interface
EPCEnhanced Power Control
EPCCHEnhanced Power Control Channel
EPROMErasable Programmable Read Only Memory
ERPEar Reference Point
Equivalent Radiated Power
ETNSEuropean Telecommunications Numbering Space
ETRETSI Technical Report
ETSEuropean Telecommunication Standard
ETSIEuropean Telecommunications Standards Institute
etuelementary time unit
FAFull Allocation
Fax Adaptor
FACFinal Assembly Code
FACCHFast Associated Control CHannel
FACCH/FFast Associated Control Channel/Full rate
FACCH/HFast Associated Control Channel/Half rate
FACHForward Access Channel
FAUSCHFast Uplink Signalling Channel
FBFrequency correction Burst
FBIFeedback Information
FCCHFrequency Correction CHannel
FCIFile Control Information
FCSFrame Check Sequence
FDDFrequency Division Duplex
FDMFrequency Division Multiplex
FDMAFrequency Division Multiple Access
FDNFixed Dialling Number
FDRFalse transmit format Detection Ratio
FECForward Error Correction
FERFrame Erasure Rate, Frame Error Rate
FFSFor Further Study
FHFrequency Hopping
FMFault Management
FNFrame Number
FNURFixed Network User Rate
FPFrame Protocol
FRFull Rate
FTAMFile Transfer Access and Management
ftnforwarded-to number
G-RNTIGERAN Radio Network Temporary Identity
GCGeneral Control (SAP)
GCRGroup Call Register
GERANGSM EDGE Radio Access Network
GGSNGateway GPRS Support Node
GID1Group Identifier (level 1)
GID2Group Identifier (level 2)
GMLCGateway Mobile Location Centre
GMMGPRS Mobility Management
GMSKGaussian Minimum Shift Keying
GPGuard Period
GPRSGeneral Packet Radio Service
GRAGERAN Registration Area
GSAGSM System Area
GSIMGSM Service Identity Module
GSMGlobal System for Mobile communications
GSNGPRS Support Nodes
GTGlobal Title
GTPGPRS Tunneling Protocol
GTP-UGPRS Tunnelling Protocol for User Plane
GTTGlobal Text Telephony
HCSHierarchical Cell Structure
HDLCHigh Level Data Link Control
HE-VASPHome Environment Value Added Service Provider
HFHuman Factors
HFNHyperFrame Number
HHOHard Handover
HLCHigh Layer Compatibility
HLRHome Location Register
HNHome Network
HOLDCall hold
HPLMNHome Public Land Mobile Network
HPSHandover Path Switching
HPUHand Portable Unit
HRHalf Rate
HRRHandover Resource Reservation
HSCSDHigh Speed Circuit Switched Data
HSNHopping Sequence Number
HSSHome Subscriber Server
HTTPHyper Text Transfer Protocol
HTTPSHyper Text Transfer Protocol Secure (https is http/1.1 over SSL, i.e. port 443)
HUHome Units
I-BlockInformation Block
I-ETSInterim European Telecommunications Standard
IInformation frames (RLP)
IAIncoming Access (closed user group SS)
IAMInitial Address Message
ICIntegrated Circuit
Interlock Code (CUG SS)
IC(pref)Interlock Code of the preferential CUG
ICBIncoming Calls Barred (within the CUG)
ICCIntegrated Circuit Card
ICGWIncoming Call Gateway
ICMIn-Call Modification
ICMPInternet Control Message Protocol
IDLInterface Definition Language
IDNIntegrated Digital Network
IDNNSIntra Domain NAS Node Selector
IEInformation Element
IECInternational Electrotechnical Commission
IEIInformation Element Identifier
IETFInternet Engineering Task Force
IFSInformation Field Sizes
IFSCInformation Field Size for the UICC
IFSDInformation Field Size for the Terminal
IHOSSInternet Hosted Octet Stream Service
IIOPInternet Inter-ORB Protocol
IKIntegrity key
IMAInverse Multiplexing on ATM
IMEIInternational Mobile Equipment Identity
IMGIInternational mobile group identity
IMSIInternational Mobile Subscriber Identity
IMT-2000International Mobile Telecommunications 2000
IMUNInternational Mobile User Number
INIntelligent Network
Interrogating Node
INAPIntelligent Network Application Part
INFINFormation field
IPInternet Protocol
IP-MIP Multicast
IPv4Internet Protocol Version 4
IPv6Internet Protocol Version 6
IRPIntegration Reference Point
ISCInternational Switching Centre
ISCPInterference Signal Code Power
ISDNIntegrated Services Digital Network
ISOInternational Organisation for Standardisation
ISPInternet Service Provider
ITCInformation Transfer Capability
ITUInternational Telecommunication Union
IUIInternational USIM Identifier
IWFInterWorking Function
IWMSCInterWorking MSC
IWUInter Working Unit
JAR fileJava Archive File
JDJoint Detection
JNDIJava Naming Directory Interface
JPJoint Predistortion
JPEGJoint Photographic Experts Group
JTAPIJava Telephony Application Programming Interface
kWindows size
KConstraint length of the convolutional code
kbpskilo-bits per second
KcCiphering key
KiIndividual subscriber authentication key
kspskilo-symbols per second
L1Layer 1 (physical layer)
L2Layer 2 (data link layer)
L2MLLayer 2 Management Link
L2RLayer 2 Relay
L2RBOP L2R Bit Orientated Protocol
L2RCOP L2R Character Orientated Protocol
L3Layer 3 (network layer)
LALocation Area
LACLink Access Control
Location Area Code
LAILocation Area Identity
LANLocal Area Network
LAPBLink Access Protocol Balanced
LAPDmLink Access Protocol on the Dm channel
LATALocal Access and Transport Area
LAULocation Area Update
LCDLow Constrained Delay
LCNLocal Communication Network
LCPLink Control Protocol
LCSLocation Services
LELocal Exchange
LILength Indicator
Line Identity
LLCLogical Link Control
Low Layer Compatibility
LmTraffic channel with capacity lower than a Bm
LMSILocal Mobile Station Identity
LMULocation Measurement Unit
LNLogical Name
LNDLast Number Dialled
LNSL2TP Network Server
LRLocation Register
Location Registration
LSALocalised Service Area
LSBLeast Significant Bit
LSTRListener SideTone Rating
LTELocal Terminal Emulator
LTZLocal Time Zone
LULocal Units
Location Update
LVLength and Value
MAMobile Allocation
Multiple Access
MAC-AMAC used for authentication and key agreement (TSG T WG3 context)
MAC-IMAC used for data integrity of signalling messages (TSG T WG3 context)
MACMedium Access Control (protocol layering context)
Message authentication code (encryption context)
MACNMobile Allocation Channel Number
MAFMobile Additional Function
MAHMobile Access Hunting supplementary service
MAHOMobile Assisted Handover
MAIMobile Allocation Index
MAIOMobile Allocation Index Offset
MAPMobile Application Part
MCCMobile Country Code
MCIMalicious Call Identification supplementary service
MCMLMulti-Class Multi-Link PPP
McpsMega-chips per second
MCSModulation and Coding Scheme
MCUMedia Control Unit
MDMediation Device
MDL(mobile) Management (entity) - Data Link (layer)
MDSMultimedia Distribution Service
MEMaintenance Entity
Mobile Equipment
MEFMaintenance Entity Function
MEHOMobile evaluated handover
MERMessage Error Ratio
MExEMobile Execution Environment
MFMaster File
MGCFMedia Gateway Control Function
MGCPMedia Gateway Control Part
MGTMobile Global Title
MGWMedia GateWay
MHEGMultimedia and Hypermedia Information Coding Expert Group
MHSMessage Handling System
MICMobile Interface Controller
MIBManagement Information Base
MIMManagement Information Model
MIPMobile IP
MIPSMillion Instructions Per Second
MLCMobile Location Centre
MMMan Machine
Mobility Management
MMEMobile Management Entity
MMIMan Machine Interface
MNCMobile Network Code
MNPMobile Number Portability
MOMobile Originated
MO-LRMobile Originating Location Request
MOHOMobile Originated Handover
MOSMean Opinion Score
MoUMemorandum of Understanding
MPMulti-link PPP
MPEGMoving Pictures Experts Group
MPH(mobile) Management (entity) - PHysical (layer) [primitive]
MRFMedia Resource Function
MRPMouth Reference Point
MSMobile Station
MSBMost Significant Bit
MSCMobile Switching Centre
MSCMMobile Station Class Mark
MSCUMobile Station Control Unit
MSEMExE Service Environment
MSIDMobile Station Identifier
MSINMobile Station Identification Number
MSISDNMobile Subscriber ISDN Number
MSPMultiple Subscriber Profile
MSRNMobile Station Roaming Number
MTMobile Terminated
Mobile Termination
MT-LRMobile Terminating Location Request
MTMMobile-To-Mobile (call)
MTPMessage Transfer Part
MTP3-BMessage Transfer Part level 3
MTUMaximum Transfer Unit
MUMark Up
MUIMobile User Identifier
MUMSMulti User Mobile Station
MVNOMobile Virtual Network Operator
NACCNetwork Assisted Cell Change
NADNode Address byte
NAINetwork Access Identifier
NASNon-Access Stratum
NBAPNode B Application Part
NBNormal Burst
NCELLNeighbouring (of current serving) Cell
NBAPNode B Application Part
NBINA parameter in the hopping sequence
NCCNetwork (PLMN) Colour Code
NCHNotification CHannel
NCKNetwork Control Key
NCPNetwork Control Protocol
NDCNational Destination Code
NDUBNetwork Determined User Busy
NENetwork Element
NEFNetwork Element Function
NEHONetwork evaluated handover
NETNorme Europeenne de Télécommunications
NFNetwork Function
NI-LRNetwork Induced Location Request
NICNetwork Independent Clocking
NITZNetwork Identity and Time Zone
NMNetwork Manager
NMCNetwork Management Centre
NMONetwork Mode of Operation
NMSNetwork Management Subsystem
NMSINational Mobile Station Identifier
NNINetwork-Node Interface
NONetwork Operator
NPNetwork Performance
NPANumbering Plan Area
NPINumbering Plan Identifier
NRINetwork Resource Identifier
NRMNetwork Resource Model
NRTNon-Real Time
NSAPNetwork Service Access Point
NSAPINetwork Service Access Point Identifier
NSCKNetwork Subset Control Key
NSDUNetwork service data unit
NSSNetwork Sub System
NtNotification (SAP)
NTNetwork Termination
Non Transparent
NTAABNew Type Approval Advisory Board
NTDDNarrow-band Time Division Duplexing
NUANetwork User Access
NUINational User / USIM Identifier
Network User Identification
NUPNational User Part (SS7)
O&MOperations & Maintenance
OAOutgoing Access (CUG SS)
OCBOutgoing Calls Barred within the CUG
OCCCHODMA Common Control Channel
OCFOpen Card Framework
OCNSOrthogonal Channel Noise Simulator
ODOptional for operators to implement for their aim
ODBOperator Determined Barring
ODCCHODMA Dedicated Control Channel
ODCHODMA Dedicated Channel
OLROverall Loudness Rating
ODMAOpportunity Driven Multiple Access
ODTCHODMA Dedicated Traffic Channel
OMCOperation and Maintenance Centre
OMLOperations and Maintenance Link
OROptimal Routeing
ORACHODMA Random Access CHannel
ORLCFOptimal Routeing for Late Call Forwarding
OSOperations System
OSAOpen Service Access
OSIOpen System Interconnection
OSIRM OSI Reference Model
OSPOctet Stream Protocol
OSP:IHOSSOctet Stream Protocol for Internet Hosted Octet Stream Service
OVSFOrthogonal Variable Spreading Factor
P-CCPCHPrimary Common Control Physical Channel
P-CPIHPrimary Common Pilot Channel
PABXPrivate Automatic Branch eXchange
PACCHPacket Associated Control Channel
PADPacket Assember/Disassembler
PAGCHPacket Access Grant Channel
PAPPassword Authentication Protocol
PARPeak to Average Ratio
PBCCHPacket Broadcast Control Channel
PBPPaging Block Periodicity
PBXPrivate Branch eXchange
PCPower Control
Personal Computer
PCBProtocol Control Byte
PCCCParallel Concatenated Convolutional Code
PCCCHPacket Common Control Channel
PCCHPaging Control Channel
PCDEPeak Code Domain Error
PCGProject Co-ordination Group
PCHPaging Channel
PCKPersonalisation Control Key
PCMPulse Code Modulation
PCMCIAPersonal Computer Memory Card International Association
PCPCHPhysical Common Packet Channel
PCSPersonal Communication System
PCUPacket Control Unit
PDProtocol Discriminator
Public Data
PDCPPacket Data Convergence Protocol
PDCHPacket Data Channel
PDHPlesiochronous Digital Hierarchy
PDNPublic Data Network
Packet Data Network
PDPPacket Data Protocol
PDSCHPhysical Downlink Shared Channel
PDTCHPacket Data Traffic Channel
PDUProtocol Data Unit
PGProcessing Gain
PHPacket Handler
PHysical (layer)
PHFPacket Handler Function
PHIPacket Handler Interface
PHSPersonal Handyphone System
PHYPhysical layer
PhyCHPhysical Channel
PIPage Indicator
Presentation Indicator
PICHPage Indicator Channel
PICSProtocol Implementation Conformance Statement
PIDPacket Identification
PINPersonal Identification Number
PIXTProtocol Implementation eXtra information for Testing
PLMNPublic Land Mobile Network
PMDPhysical Media Dependent
PNPseudo Noise
PNEPrésentation des Normes Européennes
PNPPrivate Numbering Plan
POIPoint Of Interconnection (with PSTN)
POTSPlain Old Telephony Service
PPCHPacket Paging Channel
PPEPrimative Procedure Entity
PPFPaging Proceed Flag
PPMParts Per Million
PPPPoint-to-Point Protocol
PPSProtocol and Parameter Select (response to the ATR)
PRACHPhysical Random Access Channel
Packet Random Access Channel
PrefCUG Preferential CUG
PSPacket Switched
Location Probability
PSCPrimary Synchronisation Code
PSCHPhysical Shared Channel
PSEPersonal Service Environment
PSPDNPacket Switched Public Data Network
PSTNPublic Switched Telephone Network
PTCCHPacket Timing advance Control Channel
PTM-GPTM Group Call
PTM-MPTM Multicast
PTPPoint to point
PUPayload Unit
PUCTPrice per Unit Currency Table
PUSCHPhysical Uplink Shared Channel
PVCPermanent Virtual Circuit
PWPass Word

QAQ (Interface) - Adapter
QAFQ - Adapter Function
QoSQuality of Service
QPSKQuadrature (Quaternary) Phase Shift Keying
RValue of Reduction of the MS transmitted RF power relative to the maximum allowed output power of the highest power class of MS (A)
R-BlockReceive-ready Block
R-SGWRoaming Signalling Gateway
R99Release 1999
RARouting Area
Random mode request information field
RABRadio Access Bearer
Random Access Burst
RACRouting Area Code
RACHRandom Access Channel
RADIUSRemote Authentication Dial In User Service
RAIRouting Area Identity
RANRadio Access Network
RANAPRadio Access Network Application Part
RANDRANDom number (used for authentication)
RATRadio Access Technology
RAURouting Area Update
RBRadio Bearer
RBERResidual Bit Error Ratio
RDFResource Description Format
RDIRestricted Digital Information
Rel-4Release 4
Rel-5Release 5
RFRadio Frequency
RFCRequest For Comments
Radio Frequency Channel
RFCHRadio Frequency CHannel
RFERouting Functional Identity
RFNReduced TDMA Frame Number
RFUReserved for Future Use
RLRadio Link
RLCRadio Link Control
RLCPRadio Link Control Protocol
RLPRadio Link Protocol
RLRReceiver Loudness Rating
RLSRadio Link Set
RMSRoot Mean Square (value)
RNCRadio Network Controller
RNSRadio Network Subsystem
RNSAPRadio Network Subsystem Application Part
RNTABLETable of 128 integers in the hopping sequence
RNTIRadio Network Temporary Identity
RPLMNRegistered Public Land Mobile Network
RPOARecognised Private Operating Agency
RRRadio Resources
RRCRadio Resource Control
RRMRadio Resource Management
RSCPReceived Signal Code Power
RSERadio System Entity
RSLRadio Signalling Link
RSSIReceived Signal Strength Indicator
RSVPResource ReserVation Protocol
RSZIRegional Subscription Zone Identity
RTReal Time
RTERemote Terminal Emulator
RTPReal Time Protocol
RUResource Unit
RWBResolution Bandwidth
RXLEVReceived signal level
RXQUALReceived Signal Quality
S-BlockSupervisory Block
S-CCPCHSecondary Common Control Physical Channel
S-CPICHSecondary Common Pilot Channel
S-RNTISRNC Radio Network Temporary Identity
SAALSignalling ATM Adaptation Layer
SABMSet Asynchronous Balanced Mode
SACCHSlow Associated Control Channel
SACCH/C4Slow Associated Control CHannel/SDCCH/4
SACCH/C8Slow Associated Control CHannel/SDCCH/8
SACCH/TSlow Associated Control CHannel/Traffic channel
SACCH/TFSlow Associated Control CHannel/Traffic channel Full rate
SACCH/THSlow Associated Control CHannel/Traffic channel Half rate
SADSource ADdress
SAPService Access Point
SAPIService Access Point Identifier
SARSegmentation and Reassembly
SATSIM Application Toolkit
SBSynchronization Burst
SBSCServing Base Station Controller
SBSSServing Base Station Subsystem
SCService Centre (used for SMS)
Service Code
SCCHSynchronisation Control Channel
SCCPSignalling Connection Control Part
SCFService Control Function (IN context), Service Capability Feature (VHE/OSA context)
SCHSynchronisation Channel
SCISubscriber Controlled Input
SCNSub-Channel Number
SCPService Control Point
SCTPS Common Transport Protocol CHECK WITH wg3
SDCCHStand-Alone Dedicated Control Channel
SDHSynchronous Digital Hierarchy
SDLSpecification Description Language
SDTSDL Development Tool
SDUService Data Unit
SESecurity Environment
Support Entity
SEFSupport Entity Function
SFSpreading Factor
SFHSlow Frequency Hopping
SFIShort EF Identifier
SFNSystem Frame Number
SGSNServing GPRS Support Node
SHCCHShared Channel Control Channel
SIScreening Indicator
Service Interworking
Supplementary Information (SIA=Supplemenatary Information A)
SICService Implementation Capabilities
SIDSIlence Descriptor
SIMGSM Subscriber Identity Module
SIPSession Initiated Protocol
SIRSignal-to-Interference Ratio
SLAService Level Agreement
SLPPSubscriber LCS Privacy Profile
SLRSend Loudness Rating
SLTMSignalling Link Test Message
SMSession Management
Short Message
SMDSSwitched Multimegabit Data Service
SMEShort Message Entity
SMGSpecial Mobile Group
SMIStructure of Management Information (RFC 1155)
SMLCServing Mobile Location Centre
SMSShort Message Service
SMS-CBSMS Cell Broadcast
SMS-SCShort Message Service - Service Centre
SMS/PPShort Message Service/Point-to-Point
SmtShort message terminal
SNServing Network
Subscriber Number
SNDCPSub-Network Dependent Convergence Protocol
SNMPSimple Network Management Protocol
SNRSerial NumbeR
SOASuppress Outgoing Access (CUG SS)
SoLSASupport of Localised Service Area
SPSwitching Point
Service Provider
SPCSignalling Point Code
Suppress Preferential CUG
SPCKService Provider Control Key
SQNSequence number
SRBSignalling Radio Bearer
SRESSigned RESponse (authentication)
SRNCServing Radio Network Controller
SSSupplementary Service
System Simulator
SS7Signalling System No. 7
SSCSecondary Synchronisation Code
Supplementary Service Control string
SSCOPService Specific Connection Oriented Protocol
SSCFService Specific Co-ordination Function
SSCF-NNIService Specific Coordination Function – Network Node Interface
SSCSService Specific Convergence Sublayer
SSDTSite Selection Diversity Transmission
SSEService Specific Entities
SSFService Switching Function
SSNSub-System Number
SSSARService Specific Segmentation and Re-assembly sublayer
STCSignalling Transport Converter
STMRSideTone Masking Rating
STPSignalling Transfer Point
STTDSpace Time Transmit Diversity
SVCSwitched virtual circuit
SVNSoftware Version Number
SWStatus Word
T-SGWTransport Signalling Gateway
Type only
TATerminal Adaptation
Timing Advance
TACType Approval Code
TAFTerminal Adaptation Function
TBFTemporary Block Flow
TBRTechnical Basis for Regulation
TCTransaction Capabilities
Transmission Convergence
TCHTraffic Channel
TCH/FA full rate TCH
TCH/F2,4A full rate data TCH (=2,4kbit/s)
TCH/F4,8A full rate date TCH (4,8kbit/s)
TCH/F9,6A full rate data TCH (9,6kbit/s)
TCH/FSA full rate Speech TCH
TCH/HA half rate TCH
TCH/H2,4A half rate data TCH (=2,4kbit/s)
TCH/H4,8A half rate data TCH (4,8kbit/s)
TCH/HSA half rate Speech TCH
TC-TRTechnical Committee Technical Report
TCITransceiver Control Interface
TCPTransmission Control Protocol
TD-CDMATime Division-Code Division Multiple Access
TDDTime Division Duplex
TDMATime Division Multiple Access
TDocTemporary Document
TETerminal Equipment
TE9Terminal Equipment 9 (ETSI sub-technical committee)
TeiTerminal endpoint identifier
TEIDTunnel End Point Identifier
TFTransport Format
TFATransFer Allowed
TFCTransport Format Combination
TFCITransport Format Combination Indicator
TFCSTransport Format Combination Set
TFITransport Format Indicator
Temporary Flow Identity
TFPTransFer Prohibited
TFSTransport Format Set
TFTTraffic Flow Template
TITransaction Identifier
TLLITemporary Logical Link Identity
TLSTransport Layer Security
TLVTag Length Value
TMTelecom Management
TMFTelecom Management Forum
TMNTelecom Management Network
TMSITemporary Mobile Subscriber Identity
TNTermination Node
Timeslot Number
TOTelecom Operations Map
TOATime of Arrival
TONType Of Number
TPThird Party
TPCTransmit Power Control
TPDUTransfer Protocol Data Unit
TRTechnical Report
TRAUTranscoder and Rate Adapter Unit
TrCHTransport Channel
TSTechnical Specification
Time Slot
TSCTraining Sequence Code
TSDITransceiver Speech & Data Interface
TSGTechnical Specification Group
TSTDTime Switched Transmit Diversity
TTCNTree and Tabular Combined Notation
TTITransmission Timing Interval
TUPTelephone User Part (SS7)
TVType and Value
TXPWRTransmit PoWeR; Tx power level in the MS_TXPWR_REQUEST and MS_TXPWR_CONF parameters
U-RNTIUTRAN Radio Network Temporary Identity
UARFCNUTRA Absolute Radio Frequency Channel Number
UARFNUTRA Absolute Radio Frequency Number
UARTUniversal Asynchronous Receiver and Transmitter
UCS2Universal Character Set 2
UDDUnconstrained Delay Data
UDIUnrestricted Digital Information
UDPUser Datagram Protocol
UDUBUser Determined User Busy
UEUser Equipment
UERUser Equipment with ODMA relay operation enabled
UIUser Interface
Unnumbered Information (Frame)
UICUnion Internationale des Chemins de Fer
UICCUniversal Integrated Circuit Card
ULUplink (Reverse Link)
UMUnacknowledged Mode
UMLUnified Modelling Language
UMSUser Mobility Server
UMSCUMTS Mobile Services Switching Centre
UMTSUniversal Mobile Telecommunications System
UNIUser-Network Interface
UPUser Plane
UPCMIUniform PCM Interface (13-bit)
UPDUp to date
UPTUniversal Personal Telecommunication
URAUser Registration Area
UTRAN Registration Area
URANUMTS Radio Access Network
URBUser Radio Bearer
URIUniform Resource Identifier
URLUniform Resource Locator
USBUniversal Serial Bus
USCUE Service Capabilities
USCHUplink Shared Channel
USFUplink State Flag
USIMUniversal Subscriber Identity Module
USSDUnstructured Supplementary Service Data
UTUniversal Time
UTRAUniversal Terrestrial Radio Access
UTRANUniversal Terrestrial Radio Access Network
UUIUser-to-User Information
UUSUu Stratum
User-to-User Signalling
VValue only
VAVoice Activity factor
VADVoice Activity Detection
VAPVideotex Access Point
VASPValue Added Service Provider
VBRVariable Bit Rate
VBSVoice Broadcast Service
VCVirtual Circuit
VGCSVoice Group Call Service
VHEVirtual Home Environment
VLRVisitor Location Register
VoIPVoice Over IP
VPLMNVisited Public Land Mobile Network
VPNVirtual Private Network
VSCVideotex Service Centre
V(SD)Send state variable
VTX hostThe components dedicated to Videotex service
WAEWireless Application Environment
WAPWireless Application Protocol
WBEMWeb Based Enterprise Management
WCDMAWideband Code Division Multiple Access
WDPWireless Datagram Protocol
WGWorking Group
WINWireless Intelligent Network
WPAWrong Password Attempts (counter)
WSWork Station
WSPWireless Session Protocol
WTAWireless Telephony Applications
WTAIWireless Telephony Applications Interface
WTDDWideband Time Division Duplexing
WTLSWireless Transport Layer Security
WTPWireless Transaction Protocol
WTXWaiting Time eXtenstion
WWTWork Waiting Time
WWWWorld Wide Web
XRESEXpected user RESponse
XIDeXchange IDentifier
ZCZone Code

[1] 3GPP TR 21.905 - Vocabulary for 3GPP Specifications