List of Acronyms

3GPP	Third-Generation Partnership Project
AB	access burst
ABM	asynchronous balanced mode
ADM	asynchronous disconnected mode
AC	address control
ACK	acknowledgment
ADC	analog-to-digital converter
AGC	automatic gain control
AGCH	access grant channel
AM	amplitude modulation
AoCC	advice of charge-charging
AoCI	advice of charge-Information
APN	Access Point Network
ARFC	absolute radio frequency channel
ARFCN	absolute radio frequency channel number
ARIB	Association of Radio Industries and Businesses
ARQ	automatic repeat request
AuC	authentication center
BC	bearer channel
BCCH	broadcast control channel
BCS	block check sequence
BDP	bandwidth delay product
BECN	backward explicit congestion notification
BER	bit error rate
BEP	bit error probability
BGIWP	barring of GPRS interworking profile
BH	block header
BLER	block error rate
BSC	base station controller
BSIC	base station identity code
BSN	block sequence number
BSS	base station system
BSSAP+	base station system application part+
BSSGP	base station system GPRS protocol
BTS	base transceiver station
BVC	BSSGP virtual connection
BVCI	BSSGP virtual connection identifier
CA	certification authority
CA	cell allocation
CBCH	cell broadcast channel
CCCH	common control channels
CDMA	code-division multiple access
CDPD	cellular digital packet data
CHAP	challenge handshake authentication protocol
CI	cell identifier
C/I	carrier-to-interference ratio
CIR	channel impulse response
CKSN	ciphering key sequence number
CLNP	connectionless network protocol
CLNS	connectionless network service
CN	core network
CONS	connection-oriented network service
CPM	continuous phase modulation
CQC	client query capability
CRC	cyclic redundancy check
CS	coding scheme
CU	cell update
CUG	closed user group
CV	countdown value
CWTS	China Wireless Telecommunication Standard Group
D	direction
DAC	digital-to-analog converter
dc	direct current
DCS1800	Digital Cellular System, GSM based on 1,800 MHz band
DISC	disconnect
DL	downlink
DLCI	data link connection identifier
DM	disconnected mode
DNS	domain name server
DRX	discontinuous reception
DSC	downlink signaling counter
DTE	data terminal equipment
DTM	dual transfer mode
E	extention
EDGE	Enhanced Data rates for Global Evolution
EGPRS	Enhanced General Packet Radio Service
EIR	equipment identity register
EMS	enhanced message service
ES/P	EGPRS supplementary/polling
ETSI	European Telecommunication Standards Institute
FACCH	fast associated control channel
FB	frequency correction burst
FBI	final block indicator
FCCH	frequency correction channel
FCS	frame check sequence
FDD	frequency-division duplex
FDMA	frequency-division multiple access
FECN	forward explicit congestion notification
FH	frame header
FH	frequency hopping
FN	frame number
FR	frame relay
FRMR	frame reject
FS	final segment
GERAN	GSM EDGE radio access network
GGSN	gateway GPRS support node
GMM	GPRS mobility management
GMSC	gateway mobile-service switching center
GMSK	Gaussian minimum shift keying
GPRS	General Packet Radio Service
GSM	Global System for Mobile Communications
GSMS	GPRS Short Message Service
GSN	GPRS support node
GT	global title
GTP	GPRS tunnelling protocol
HCS	header check sequence
HDLC	high-level data link control
HLR	home location register
HPLMN	home public land mobile network
HSCSD	high-speed circuit-switched data
HSN	hopping sequence number
HTML	HyperText Markup Language
HTx	hilly terrain propagation channel, with speed x km/hr
I	information
IF	intermediate frequency
IM	implementation margin
IMAP	Internet Message Access Protocol
IMC	Internet Mail Consortium
IMEI	international mobile equipment identity
IMGI	international mobile group identity
IMSI	international mobile subscriber identity
IN	intelligent network
IP	Internet Protocol
IP3	third-order intercept point
IPCP	Internet Protocol Control Protocol
IPLMN	interrogating PLMN
IP-M	Internet Protocol multicast
ISDN	Integrated Services Digital Network
ISI	intersymbol interference
ISL	input signal level
ISP	Internet service provider
LA	location area
LAC	location area code
LAI	location area identifier
LAPD	link access procedure on the D-channel
LCP	link control protocol
LI	length indicator
L2TP	layer-two tunneling protocol
LLC	logical link control
LLE	logical link entity
LMI	link management interface
LO	local oscillator
LSP	link selector parameter
M	more
MA	mobile allocation
MAC	medium access control
MAC	message authentication code
MAIO	mobile allocation index offset
MAP	mobile application part
ME	mobile equipment
MM	Mobility Management
MMS	multimedia messaging service
MS	mobile station
MSC	mobile-services switching center
MSK	minimum shift keying
MSISDN	mobile station ISDN number
MT	mobile terminal
MTP	message transfer part
MTU	maximum transmission unit
NAP	network access point
NB	normal burst
NCP	network control protocol
NER	nominal error rate
NF	noise factor
NM	network management
NMC	network management center
NNI	network-network interface
N-PDU	network protocol data unit
NS	network service
NSAPI	network service access point identifier
NSC	network service control
NSDU	network service data unit
NSE	network service entity
NSEI	network service entity identifier
NSS	network subsystem
NS-VC	network service virtual connection
NS-VCI	network service virtual connection identifier
NS-VL	network service virtual link
NS-VLI	network service virtual link identifier
NZIF	near-zero intermediate frequency
O&M	operation and maintenaince
OOS	origin offset suppression
OSR	oversampling ratio
OSS	operator-specific services
OTA	over the air
PA	power amplifier
PACCH	packet associate control channel
PAGCH	packet access grant channel
PAP	PPP authentication protocol
PAP	push access protocol
PBCCH	packet broadcast control channel
PC	power control
PCH	paging channel
PCCCH	packet common control channel
PCS1900	Personal Communication System, GSM based on 1,900- MHz band
PCU	packet control unit
PDA	personal digital assistant
PDC	Personal Digital Cellular
PDCH	packet data channel
PDTCH	packet data traffic channel
PDN	packet data network
PDP	packet data protocol
PDU	protocol data unit
PFI	packet flow identifier
PFM	packet flow management
PI	push initiator
PIM	personal information manager
PKI	public key infrastructure
PLL	phase locked loop
PLL	physical link layer
PLMN	public land mobile network
PNCH	packet notification channel
POP	Post Office Protocol
PO-TCP	PPG-originated TCP connection establishment method
PPCH	packet paging channel
PPG	push proxy gateway
ppm	parts per million
PPP	point-to-point protocol
PR	power reduction
PRACH	packet random access channel
PSI	packet system information
PSTN	Public Switched Telephone Network
PT	payload type
PTCCH	packet timing advance control channel
P-TMSI	packet-temporary mobile station identity
PTP	point-to-point
PVC	permanent virtual circuit
QoS	quality of service
R	retry
RA	routing area
RAC	Routing Area Code
RADIUS	Remote Authentication Dial-In User Service
RAx	rural area propagation channel, with speed x km/hr
RACH	random access channel
RAI	routing area identity
RAN	radio access network
RAS	remote access server
RBSN	reduced block sequence number
RDF	resource description framework
RF	radio frequency
RFL	reference frequency list
RLC	radio link control
RMS	root mean square
RNR	receiver not ready
RR	receiver ready
RR	radio resource
RRBP	relative reserved block period
RRM	radio resource management
RT	real time
RTI	radio transaction identifier
Rx	reception
RXLEV	received signal level measurement
RXQUAL	receive signal quality measurement
SA	service architecture
SABM	set asynchronous balanced mode
SACCH	slow associated control channel
SACK	selective acknowledgment
SAP	service access point
SAPI	service access point identifier
SATK	SIM application toolkit
SB	synchronization burst
SCCP	signaling connection control part
SCH	synchronization channel
SCP	service control point
SDCCH	stand-alone dedicated control channel
SDU	service data unit
SGSN	serving GPRS support node
SI	service indication
SI	stall indicator
SI	system information
SIM	subscriber identity module
SL	service loading
SM	session management
SMG	special mobile group
SMS	Short Message Service
SMS-GMSC	Short Message Service-gateway MSC
SMS-IWMSC	Short Message Service-Interworking MSC
SMTP	Simple Mail Transfer Protocol
SNDCP	subnetwork dependent convergence protocol
SN-PDU	SNDCP PDU
SNR	signal-to-noise ratio
SNS	subnetwork service
S/P	supplementary/polling
SRES	signed result
SS7	Signaling System No. 7
SVC	switched virtual circuit
T	terminal
TA	timing advance
TBF	temporary block flow
TCAP	transaction capabilities application part
TCH	traffic channel
TCP	Transmission Control Protocol
TDD	time-division duplex
TDMA	time-division multiple access
TE	terminal equipment
TEID	Tunnel Endpoint Identifier
TFI	temporary flow identity
TFT	traffic flow template
TI	TLLI indicator
TLLI	temporary link level identity
TLS	transport layer security
TMSI	temporary mobile subscriber identity
TOS	type of service
TPI	transport information items
TRAU	Transcoding and Adaptation Unit
TRX	tansceiver
TS	training sequence
TSC	training sequence code
TSG	technical specification group
TTA	Telecommunications Technology Association
TTC	Telecommunication Technology Committee
Tx	transmission
TUx	typical urban propagation channel, with speed x km/h
UDP	User Datagram Protocol
UI	unconfirmed information
UL	uplink
UNI	user-network interface
URL	Uniform Resource Locator
USF	uplink state flag
USIM	User Service Identity Module
USSD	unstructured supplementary service data
UWCC	Universal Wireless Communications Corporation
VC	virtual circuit
VLR	visitor location register
VPLMN	visited public land mobile network
WIM	wireless identity module
WWW	World Wide Web
XID	exchange identification
ZIF	zero intermediate frequency