This document has been composed to provide an authoritative reference on acronyms and abbreviations used in Powertec documentation. The definitions have been compiled with reference to IEEE and ETSI documents, where applicable.

Acronyms & Abbreviations

6LOWPANIPv6 over Low power Wireless Personal Area NetworksIoT concept
8PSKEight Phase Shift KeyingDigital modulation technique
16PSK16 Phase Shift KeyingDigital modulation technique
16QAM16 Quadrature Amplitude ModulationDigital modulation technique
3GPP3rd Generation Partnership ProjectSee:
64QAM64 Quadrature Amplitude ModulationDigital modulation technique
256QAM256 Quadrature Amplitude ModulationDigital modulation technique
AASAdaptive Antenna System 
acalternating currentMust be written lowercase. Can be combined with other units, e.g. Vac. 
ACIRAdjacent Channel Interference Ratio Signal measurement
ACLRAdjacent Channel Leakage Ratio Signal measurement
ACSAdjacent Channel SelectivitySignal measurement
ADSLAsymmetric Digital Subscriber LineCopper broadband access technology, speeds up to 12 Mbps
ADSL2+Asymmetric Digital Subscriber Line 2+Copper broadband access technology, speeds up to 24 Mbps
AGCAutomatic Gain ControlWireless communication technology
AIPNAll-IP Network 
AMAmplitude ModulationDigital modulation technique
AMCAdaptive Modulation and CodingWireless communication technology
APAccess Point 
APCAutomatic Power ControlCan also refer to Adaptive Power Control (Synonymous)
APIApplication Programming Interface 
APNAccess Point NameUsed in E-/UTRA data communications as an identifier
ARFCNAbsolute Radio Frequency Channel Number 
ARPUAverage Revenue Per UserTotal revenue divided by total users, typically on a monthly basis
ARQAutomatic Repeat and reQuestWireless communication technology
ASCIAmerican Standards Compliance Institute 
ASKAmplitude Shift KeyingDigital modulation technique
ATPCAutomatic Transmit Power Control Wireless communication technology
AWGAmerican Wire Gauge 
BCCHBroadcast Control ChannelE-/UTRA logical channel
BCHBroadcast ChannelE-/UTRA transport Channel
BDCbinary coded decimal 
BERBit Error RateSignal measurement
BLEBluetooth Low EnergyWPAN technology
BLERBlock Error RateSignal measurement
BPFBand-Pass FilterElectronic filter
bpsbits per secondData rate, abbreviation of b/s or bit/s
BPSKBinary Phase Shift KeyingDigital modulation technique
BSOBroadband Service Obligation 
BTSBase Transceiver Station 
CACarrier AggregationSee:
CCCHCommon Control ChannelE-/UTRA logical channel
CCHControl Channel 
CCICo-Channel Interference 
CDFCumulative Distribution Function 
CDMCode Division MultiplexingRadio multiplexing technique
CDMACode Division Multiple AccessRadio channel access method
CDNContent Delivery NetworkDistributed servers that host content, accessible via the internet.
ChSChannel Separation 
CIPCommon Industrial ProtocolIndustrial networking messaging protocol
CNASChina National Accrediation ServiceCertification body. See:
COConnected Object 
CoAPConstrained Application ProtocolIoT transfer protocol
CPECustomer Premises Equipment 
CPICHCommon Pilot ChannelUTRA downlink pilot channel
CSSChirp Spread SpectrumSpread spectrum technique
dcdirect currentMust be written lowercase. Can be combined with other units, e.g. Vdc.
DC-HSPA+Dual Carrier High Speed Packet Access Evolution3G data service providing up to 42 Mbps DL data rates
DCCHDedicated Control ChannelE-/UTRA logical channel 
DL-SCHDownink Shared ChannelE-/UTRA transport channel
DPCH(DL)Dedicated Physical Channel in the DownlinkUTRA physical channel
DPCH(UL)Dedicated Physical Channel in the UplinkUTRA physical channel
DRXDiscontinuous ReceptionPower conservation technique
DS-CDMADirect-Sequence Code Division Multiple AccessRadio multiple access method
DSSSDirect Sequence Spread SpectrumDigital modulation technique
DTCHDedicated Traffic ChannelE-/UTRA logical channel
EAPExtensible Authentication ProtocolMethod of authentication
Eb/NoBit Energy-to-Noise Density 
Ec/IoChip Energy-to-Noise Density plus Interference 
ECCEnvelope Correlation CoefficientAntenna characteristic
EDGEEnhanced Data rates for GSM EvolutionSee:
eDRXExtended Discontinuous ReceptionPower conservation technique
EHFExtremely High FrequencyFrequency band
EIAElectronic Industry Association 
EIRPEffective Isotropically Radiated Power  
ELFExtremely Low FrequencyFrequency band
EMIElectromagnetic Interference 
eNodeBEvolved Node BE-UTRA access node
EPCEvolved Packet CoreCore of the EPS network.
EPSEvolved Packet SystemComprises of EPC and E-UTRAN.
ERPEffective Radiated Power 
etc.Et cetera 
ETSIEuropean Telecommunications Standard Institute See:
E-UTRAEvolved Universal Terrestrial Radio AccessAlso known as LTE or 4G
E-UTRANEvolved Universal Terrestrial Radio Access Network 
EV-DOEvolution Data Only3G cellular technology. Also known as 1xEV-DO
FACHForward Access ChannelUTRA transport channel
FDDFrequency Division Duplex 
FDMFrequency Division MultiplexingRadio multiplexing technique
FDMAFrequency Division Multiple AccessRadio multiple access method
FECForward Error Correction 
FERFrame Erasure Rate 
FH-CDMAFrequency Hopping-Code Division Multiple AccessRadio multiple access method
FMFrequency ModulationDigital modulation technique
FSKFrequency Shift KeyingDigital modulation technique
FTTCFiber To The CabinetTermination to cabinet near customer premises
FTTPFiber To The PremiseTermination at the customer premises
GEOGeostationary Earth OrbitSatellite orbital period equal to the Earth's rotational period
GISGeographic Information System 
GLONASSGlobal Navigation SystemRussian technology similar to GPS
GPSGlobal Positioning System 
GPRSGeneral Packet Radio ServiceSee:
GSMGlobal System for Mobile communicationsAlso known as 2G
GUIGraphical User Interface 
HFHigh FrequencyFrequency band
HPBWHalf Power BeamWidthAntenna characteristic
HPFHigh Pass FilterElectronic filter
HSPAHigh Speed Packet Access3G data service comprising HSDPA and Enhanced Uplink technologies
HSPA+High Speed Packet Access Evolution3G data service providing up to 21 Mbps DL data rates
HTMLHyperText Markup Language 
IDInner Diameter 
IECInternational Electrotechnical CommissionStandards body. See:
IEEEInstitute of Electrical and Electronics EngineersProfessional body. See: 
IETFInternet Engineering Task ForceStandards body. See:
IFIntermediate Frequency 
IIoTIndustrial Internet of Things 
IMDInterModulation DistortionPerformance characteristic
IMEIInternational Mobile Equipment Identity 
IMSIP Multimedia core network SubsystemArchitectural framework for delivering IP multimedia services
IMSIInternational Mobile Subscriber Identity 
IoTInternet of Things 
IPInternet ProtocolNetworking protocol
IPv4Internet Protocol version 4Networking protocol
IPv6Internet Protocol version 6Networking protocol
IPSOInternet Protocol for Smart Objects 
ISOInternational Organization for StandardizationStandards body. See:
ISPInternet Service Provider 
L1Layer-1Physical layer of OSI model
L2Layer-2Data-Link layer of OSI model
L3Layer-3Network layer of OSI model
L4Layer-4Transport layer of OSI model
LFLow FrequencyFrequency band
lnlogarithm, naturalMathematical operation
LNALow Noise AmplifierComponent of RF transmitter
LOLocal OscillatorComponent of RF transmitter
logLogarithmMathematical operation
LoRaWANLong Range Wide Area NetworkType of wireless telecommunication network
LPFLow Pass FilterElectronic filter
LPDALog Periodic Dipole ArrayType of antenna design
LPWANLow Power Wide Area NetworkType of wireless telecommunication network
LTELong Term EvolutionAlso known as E-UTRA. See:
LTE-ALong Term Evolution - AdvancedExtension of E-UTRA. See:
LTE-MLong Term Evolution - MachineAbbreviation of LTE-MTC
LTE-MTCLong Term Evolution - Machine-Type CommunicationType of wireless telecommunication network
LWM2MLight Weight Machine-to-MachineIoT device management protocol
MACMedia Access Control (OSI layer 2 sublayer)As defined in: IEEE Std 802-2001
MCHMulticast ChannelLTE transport channel
MCCHMulticast Control ChannelLTE logical channel
MMEMobility Management EntityControl-node for LTE access network
MNOMobile Network Operator 
MQTTMQ Telemetry TransportISO Standard messaging protocol
MVNOMobile Virtual Network Operator 
MTBFMean Time Between FailureMechanical performance metric
MTCHMulticast Traffic ChannelLTE logical channel
NATNetwork Address Translation 
NB-FiNarrowband FidelityLPWAN IoT technology
NB-LTE-MNarrow Band Long Term Evolution MachineLTE-based IoT technology
NB-IoTNarrow Band Internet of ThingsDSSS-based IoT technology
NFCNear Field Communication 
ODOuter Diameter 
ODMOriginal Equipment Manufacturer 
OEMOriginal Design Manufacturer 
OFDMOrthogonal Frequency Division MultiplexingRadio multiplexing technique
OFDMAOrthogonal Frequency Division Multiple AccessRadio channel access method
OMAOpen Mobile AllianceStandards developer. See: 
OSIOpen Systems InterconnectCommunications model
OTAOver The Air 
OVSFOrthogonal Variable Spreading FactorUsed in spread spectrum technologies
PAMPuse-Amplitude ModulationAnalog modulation technique
PANPersonal Area Network 
PBCHPhysical Broadcast ChannelLTE physical data channel
P-CCPCHPrimary Common Control Physical ChannelUTRA physical channel
PCFICHPhysical Control Format Indicator ChannelLTE physical control channel
PCHPaging ChannelE-/UTRA transport channel
PCCHPaging Control ChannelE-/UTRA logical channel
PCMPulse Code ModulationAnalog-over-digital modulation technique
PCPICHPrimary Common Pilot ChannelUTRA downlink pilot channel
PDCCHPhysical Downlink Control ChannelLTE physical control channel
PDNPacket Data Network 
PDSCHPhysical Downlink Shared ChannelE-/UTRA physical data channel
PFPaging FrameLTE frame
PHICHPhysical Hybrid ARQ Indicator ChannelLTE physical control channel
PHYPHYsical (OSI layer 1)As defined in: ISO/IEC 7498-1:1994
PMCHPhysical Multicast ChannelLTE physical data channel
PNPseudo-random NoiseSpread-spectrum encoding.
PNBSCHPhysical Node B Synchronization ChannelUTRA physical channel
POPaging OccasionLTE subframe
POPPoint Of Presence 
PPPPoint-to-Point ProtocolL2 protocol
PRACHPhysical Random Access ChannelE-/UTRA physical data channel
PSKPhase Shift KeyingDigital modulation technique
PSKPre-Shared KeyMethod of authentication
PSMPower Saving ModeLTE-M1 power conservation technique
PUCCHPhysical Uplink Control ChannelLTE physical control channel
PUSCHPhysical Uplink Shared ChannelLTE physical data channel
QAMQuadrature Amplitude ModulationDigital modulation technique
QoSQuality of Service 
RANRadio Access Network 
RACHRandom Access ChannelE-/UTRA transport channel
RFRadio Frequency 
RFIDRadio Frequency IDentification 
RLReturn LossAntenna/ancillary electrical characteristic
RLANRadio Local Area Network 
R-PDCCHRelay Physical Downlink Control ChannelLTE physical control channel
RPERadiation Pattern EnvelopeAntenna characteristic
RPMARandom Phase Multiple AccessIoT channel access method
RS232Recommended Standard 232Refers to serial communication
RSCPReceived Signal Code PowerSignal measurement
RSLReceive Signal LevelSignal measurement
RSRPReference Signal Received PowerSignal measurement
RSSIReceived Signal Strength IndicatorSignal measurement
RxReceiveInbound, to device
SAESystem Architecture EvolutionCore network architecture of LTE
SAFStore And Forward 
SAWSurface Acoustic Wave 
S-CCPCHSecondary Common Control Physical ChannelUTRA physical channel
SHCCHShared Control ChannelUTRA logical channel
SINRSignal to Interference plus Noise RatioSignal measurement
SIMSubscriber Identity Module 
SLAService Level Agreement 
SLLSide Lobe LevelAntenna parameter
SLRSide Lobe RatioAntenna parameter
SNRSignal to Noise RatioSignal measurement
TCMTrellis Coded ModulationDigital modulation technique
TCPTransmission Control ProtocolNetworking protocol
TDMTime Division MultiplexingRadio multiplexing technique
TDMATime Division Multiple AccessRadio channel access method
TIATelecommunications Industry AssociationStandards body. See:
TxTransmitOutbound, from device
U-NIIUnlicensed National Information Infrastructure (UNII)Radio frequency band
UDPUser Datagram ProtocolNetworking protocol
UEUser Equipment 
UHFUltra High FrequencyFrequency band
UMTSUniversal Mobile Telecommunication SystemAlso known as UTRA
UNBUltra Narrow BandModulation technology
UL-SCHUplink Shared ChannelLTE transport channel
USOUniversal Service ObligationMandated requirement to provide service to entire population
VHFVery High FrequencyFrequency band
VMVirtual Machine 
VoIPVoice over Internet ProtocolVoice communications protocol
VPNVirtual Private NetworkPrivate over public network protocol
VSATVery Small Aperture TerminalCompact satellite terminal
VSWRVoltage Standing Wave Ratio 
WANWide Area Network 
WiMAXWorldwide Interoperability for Microwave AccessFixed wireless access technology
WISPWireless Internet Service Provider 
WLANWireless Local Area Network 
WSNWireless Sensor Network 
XPDCross-Polar DiscriminationAntenna performance characteristic


  1. ETSI, TErms and Definitions Database Interactive (TEDDI), [Online], Available:
  2. IEC TC 25, "IEC 60027-2:2005 Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics", Intl. Electr. Comm., Geneva, Switzerland, 25/298/FDIS, Aug. 2005.
  3. 3GPP SP-72, "Vocabulary for 3GPP Specifications (Release 13)", 3GPP, Valbonne, France, 3GPP TR 21.905 V13.1.0, Jun. 2016.
  4. oneM2M Partners Type 1, "Technical Report - Protocol Analysis", oneM2M, TR-0009 v0.7.0, Jun. 2014.