Lists of mobile phone technology abbreviations and acronyms

1G - first generation
2G - second generation
3G - third generation
3G - MSC/VLR third generation mobile switching centre/visitor location register
3GPP - third generation partnership project
3G - SGSN third generation serving GPRS support node
AC - access class
ACK - acknowledgement
ACLR - adjacent channel leakage ratio
ACS - adjacent channel selectivity
ADC - analogue to digital converter
ADF - application dedicated files
AGC - automatic gain control
AI - acquisition indicator
AICH - acquisition indication channel
AID - application identifier
AK - anonymity key
AM - acknowledged mode
AMD - acknowledged mode data
AMF - authentication and key management field
AMR - adaptive multirate
AP - access preamble
APN - access point name
ARQ - automatic repeat request
AS - access stratum
ASC - access service class
ASIC - application specific integrated circuit
ATM - asynchronous transfer mode
ATT - AICH transmission timing
ATT - attach flag
AUTN - authentication token
AV - authentication vector
AWGN - additive white Gaussian noise
BBF - baseband filter
BC - broadcast control
BCCH - broadcast control channel
BCD - binary coded decimal
BCFE - broadcast channel functional entity
BCH - groadcast channel
BER - bit error rate
BGCF - breakout gateway control function
BLER - block error rate
BMC - broadcast and multicast control protocol
BO - buffer occupancy
BPF - band pass filter
BPSK - binary phase shift keyed
BS - base station
BSC - base station controller
BSS - base station system
BTS - base transceiver station
C/I - carrier to interference ratio
C/T - control/traffic
CA - channel assignment
CAI - channel assignment indicator
CAMEL - customised application for mobile network enhanced logic
CBC - cell broadcast centre
CBS - cell broadcast service
CC - call control
CCC - CPCH control channel
CCCH - common control channel
CCDF - complementary cumulative distribution function
CCTrCH - coded composite transport channel
CD - collision detection
CD/CA-ICH - collision detection/channel assignment indicator channel
CDMA - code division multiple access
CFN - connection frame number
CID - context identifier
CK - cipher key
CKSN - cipher key sequence number
CLI - calling line identification
CLIR - calling line identification restriction
CM - connection management
CN - core network
CP - control protocol
CPBCCH - compact packet BCCH
CPCH - common packet channel
CPICH - common pilot channel
CRC - cyclic redundancy check
CRNC - controlling radio network controller
c-RNTI - cell radio network temporary identifier
CS - circuit switched
CSCF - call session control function
CSICH - CPCH status indication channel
CTCH - common traffic channel
CTFC - calculated transport format combination
CTS - cordless telephony system
CW - continuous wave
D/C - data control
DAC - digital to analogue converter
DC - dedicated control
DCCH - dedicated control channel
DCF - digital channel filter
DCFE - dedicated control functional entity
DCH - dedicated transport channel
DCS1800 - digital cellular network at 1800 MHz
DC-SAP - dedicated control SAP
DECT - digital enhanced cordless telecommunications
DF - dedicated files
DPCCH - dedicated physical control channel
DPCH - dedicated physical channel
DPDCH - dedicated physical data channel
DRAC - dynamic resource allocation controller
DRNC - drift radio network controller
DRNS - drift radio network subsystem
DRX - discontinuous reception
DSCH - downlink shared transport channel
DSP - digital signal processor
DTCH - dedicated traffic channel
DTX - discontinuous transmission
EDGE - enhanced data rates for GSM evolution
EF - elementary file
EGC - efficient Golay correlator
EIR - equipment identity register
e-MLPP - enhanced multilevel precedence and preemption
EMS - extended message service
EOT - end of transmission
EPC - estimated PDU counter
ETSI - European Telecommunications Standards Institute
EVM - error vector magnitude
FACH - forward access channel
FBI - feedback mode indicator
FCT - frame count transmitted
FDD - frequency division duplex
FDMA - frequency division multiple access
FER - frame error rate
FFT - fast Fourier transform
FHT - fast Hadamard transform
FIR - finite impulse response
G3 - Group 3
GC - general control
GERAN - GSM/EDGE radio access network
GGSN - gateway GPRS support node
GMM - GPRS mobility management
GMMAS-SAP - GPRS mobility management SAP
GMSC - gateway mobile switching centre
GPRS - general packet radio service
GSM - global system for mobile communications
GSMS - GPRS short message service
GTP - GPRS tunnelling protocol
HC - header compression
HCS - hierarchical cell structures
HE/AuC - home environment/authentication centre
HFN - hyper frame number
HLR - home location register
HPLMN - home PLMN
HPSK - hybrid PSK
HSDPA - high speed download packet access
HSS - home subscriber service
HTTP - hypertext transfer protocol
I-CSCF - interrogating call session control function
IE - information element
IK - integrity key
IMEI - international mobile equipment identity
IMS - internet protocol multimedia subsystem
IMSI - international mobile subscriber identity
IMT2000 - International Mobile Telecommunications 2000
IP - internet protocol
IPDL - idle period on the downlink
ISDN - integrated services digital network
ITU - International Telecommunications Union
KSI - key set identifier
LA - location area
LAC - location area code
LAI - location area identifier
LAPP - log a-posteriori probability
LAU - location area update
LI - length indicator
LLC - logical link control
LLR - log likelihood ratio
LNA - low noise amplifier
LO - local oscillator
LR - location registration
LSB - least significant bit
MAC - message authentication code
MAC - medium access control
MAC b - MAC - broadcast
MAC c/sh - MAC common or shared
MAC d - MAC - dedicated
MAC hs - MAC - high speed
MAP - maximum a-posteriori probability
MASF - minimum available spreading factor
MCC - mobile country code
ME - mobile equipment
MF - master file
MCGF - media gateway control function
MGW - media gateway
MIB - master information block
MLSE - maximum likelihood sequence estimation
MM - mobilitiy management
MNC - mobile network code
MO - mobile originated
MRC - maximum ratio combining
MRF - media resource function
MRFC - media resource function controller
MRFP - media resource function processor
MRW - move receive window
MS - mobile station
MSB - most significant bit
MSC - mobile switching centre
MSE - mean square error
MSIN - mobile subscriber identifier number
MT - mobile terminated
MUX - multiplex
NACK - negative acknowledgement
NAS - non-access stratum
NSAPI - network service access point identifier
NW - network
OCQPSK - orthogonal complex QPSK
OK-QPSK - offset keyed quadrature phase shift keying
OSI - open systems interconnection
OTDOA - observed time difference of arrival
OVSF - orthogonal variable spreading factor
PCCC - parallel concatenated convolutional code
PCCH - paging control channel
PCCPCH - primary common control physical channel
PCDE - peak code domain error
PCF - policy control function
PCH - paging channel
PCPCH - physical common packet channel
P-CPICH - primary common pilot channel
PCs - personal communication system
P-CSCF - proxy call session control function
PD - protocol discriminator
PDC - personal digital cellular
PDCP - packet data convergence protocol
PDN - packet data network
PDP - packet data protocol
PDSCH - physical downlink shared channel
PDU - protocol data unit
PI - paging indicator
PIN - personal identification number
PLMN - public land mobile network
PN - pseudo-noise
PNFE - paging and notification functional entity
PRA - PCPCH resource availability
PRACH - physical random access channel
PS - packet switched
PSC - primary synchronisation code
P-SCH - primary synchronisation channel
PSK - phase shift keying
PSTN - public switched telephone network
PTM - point to multipont
P-TMSI - packet temporary mobile subscriber identity
PTP - point to point
QoS - quality of service
QPSK - quadrature phase shift keying
R4 - release 4
R5 - release 5
R6 - release 6
R99 - release 99
RA - routing area
RAB - radio access bearer
RABM - radio access bearer manager
RAC - radio access capability
RACH - random access channel
RAI - routing area identifier
RAT - radio access technology
RAU - routing area update
RB - radio bearer
RES - response
RL - radio link
RLC - radio link control
RLS - radio link set
RM - rate match
RNC - radio network controller
RNS - radio network subsystem
RNTI - radio network temporary identifier
ROHC - robust header compression
RPLMN - registered PLMN
RRC - radio resource control
RRC - root raised cosine
RR-SAP - radio resource SAP
RSCP - receive signal code power
RTT - round trip time
S/P - serial to parallel
SAP - service access point
SCCPCH - secondary common control physical channel
SCH - synchronisation channel
S-CPICH - secondary common pilot channel
SCR - source controlled rate
S-CSCF - serving call session control function
SDP - session description protocol
SDU - service data unit
SF - spreading factor
SFN - system frame number
SGSN - serving GPRS support node
SHCCH - shared channel control channel
SI - status indicator
SI - stream identifier
SIB - system information block
SIBn - system identification broadcast type n (n=1,....18)
SID - silence descriptor
SIP - session initiation protocol
SIR - signal to interference ratio
SISO - soft in soft out
SLF - subscription location function
SM - session management
SMC-CS - short message control - circuit switched
SMC-GP - short message control - GPRS protocol
SM-RL - short message relay layer
SMS - short message service
SMSMM - SMS mobility management
SM-TL - short message transfer layer
SNR - signal to noise ratio
SOVA - soft output Viterbi algorithm
SQN - sequence number
SRB - signalling radio bearer
SRNS - serving radio network subsystem
s-RNTI - serving radio network temporary identifier
SS - supplementary service
S-SCH - secondary synchronisation channel
SSDT - site selection diversity transmission
STTD - space time transmit diversity
SUFI - super fields
TACS - total access communications system
TAF - terminal adaptation function
TCP - transmission control protocol
TCTF - target channel type field
TCTV - traffic channel transport volume
TDD - time division duplex
TDMA - time division multiple access
TE - terminal equipment
TF - transport format
TFC - transport format combination
TFCI - transport format combination indicator
TFCS - transport format combination set
TFS - transport format selection
TFT - traffic flow template
TG8/1 - Task Group 8/1
TGMP - transmission gap sequence measurement purpose
TI - transaction identifier
TIA - Telecommunications Industry Association
TM - transparent mode
TMD - transparent mode data
TMSI - temporary mobile subscriber identity
ToS - type of service
TPC - transmit power control
TTI - transmission time interval
TVM - traffic volume measurement
Tx - transmit
UARFCN - ULTRA absolute radio frequency channel number
UDP - user datagram protocol
UE - user equipment
UICC - universal integrated circuit card
UM - unacknowledged mode
UMTS - Universal Mobile Telecommunications System C304
URA - UTAN registration area
URL - uniform resource locator
u-RNTI - UTRAN radio network temporary identifier
US - update status
USAT - USIM application toolkit
USCH - uplink shared channel
USIM - universal sibscriber identity module
UTRAN - UMTS terrestrial radio access network
VAD - voice activity detection
VCAM - versatile channel assignment mode
VGCS - voice group call service
VLR - visitor location register
WCDMA - wideband code division multiple access
XMAC - expected message authentication code
XRES - expected response