Wireless Glossary and Acronyms

This page has a glossary of common wireless technology terms, followed by a comprehensive list of wireless acronyms that spans over a decade of wireless technology developments.

Wireless Glossary

1G. First generation cellular based on analog technology.

2G. Second generation cellular using digital methods.

2.5G. Unofficial enhanced 2G technologies.

3G. Third generation cellular technology that is officially accepted by the International Telecommunications Union and that meets the following performance requirements for data: 144 kbps at mobile/driving speeds, 384 kbps at pedestrian speeds and 2 Mbps indoors or with very small cells.

3.5G. Unofficial enhanced 3G technologies.

4G. Undefined at this time, but expected to be fully IP-based, support peak throughputs to 1 Gbps, and be agile in supporting multiple types of radio interfaces.

Bluetooth. Wireless network standard for communication up to 10 meters. Commonly used with mobile telephones and PDAs.

CCK. Complementary Code Keying. Specific form of spread spectrum used in IEEE 802.11b.

CDMA. Code Division Multiple Access. A direct-sequence spread-spectrum radio technology, used in cellular networks. Qualcomm was the primary company that applied CDMA to cellular. Direct-sequence spread spectrum is also in the IEEE 802.11b standard.

CDMA2000. One of the official 3G specifications. Technology family includes 1xRTT and 1xEV-DO.

CDMA2000 1xRTT. CDMA2000 One Carrier Radio Transmission Technology. First version of CDMA2000. Typical data throughput rates are 50 to 70 kbps.

CDMA2000 1xEV-DO. CDMA2000 One Carrier Evolved Data Optimized. Advanced version of CDMA2000 that supports higher data rates. Typical data throughput rates are 300 to 500 kbps.

EDGE. Enhanced Data Rates for GSM Evolution. An enhancement to GPRS that increases throughput speeds. Typical data throughput rates are up to 130 kbps.

GPRS. General Packet Radio Service. IP-based packet data service for GSM networks. Typical data throughput rates are 30 to 40 kbps.

GSM. Global System for Mobile Telecommunications. The most widely deployed 2G cellular technology on a global basis.

HIPERACCESS. Higher Performance Radio Access. A point-to-point radio system supporting microwave types of applications.

HiperLAN. High Performance Radio LAN. WLAN specification developed by the European Standards Institute. Little market acceptance.

HiperMAN. Higher Performance Radio MAN. Wireless metropolitan area network specified by the European Standards Institute. Developed to be compatible with WiMAX.

HSDPA. High Speed Downlink Packet Access. An enhancement to WCDMA for higher speeds and lower latency. Typical data throughput rates are up to 1 Mbps.

IEEE. Institute of Electrical and Electronic Engineers. One of the accredited standards organizations in the US.

IRDA. Infrared Data Association. Specification for IR short-range, point-to-point communications.

Mbps. Megabits per second.

MIMO. Multiple Input Multiple Output. Technique using multiple transmit and multiple receive antennas and radios to take advantage of multipath and to increase throughput, range and spectral efficiency.

OFDM. Orthogonal Frequency Division Multiplexing. An alternative to CDMA for high-speed radio transmission. Used by WiMAX, IEEE 802.11a, IEEE 802.11g and leading candidate technology for next-generation cellular systems.

SSL. Secure Sockets Layer. Security layer associated with web browsers. Found above the TCP layer. Includes support for authentication and multiple encryption methods.

Ultra Wideband. High speed networking over short distances. Radio signal spread across multiple GHz of frequency.

UMTS. Universal Mobile Telecommunications System. One of the official 3G technologies. Evolution path for GSM operators. Uses a WCDMA radio interface.

VPN. Virtual Private Network. Secure communications over public networks.

WCDMA. Wideband CDMA. A CDMA radio interfaced used in UMTS systems with 5 MHz radio channel bandwidths. Not compatible with CDMA2000.

Wi-Fi. Wireless Fidelity. A product certified for interoperability by the Wi-Fi Alliance.

WiMAX. Worldwide Interoperability for Microwave Access. Industry group that promotes and certifies broadband wireless technology based on IEEE 802.16.

WLAN. Wireless local area network.

Wireless Acronyms

3G - Third Generation Cellular Technology
3GPP - Third Generation Partnership Project
3GPP2- Third Generation Partnership Project 2
AAA - Authentication Authorization Accounting
AAS - Adaptive Antenna System
AC - Authentication Center
ACK – Acknowledgment
ADC – Analog to Digital Converter
ADPCM - Adaptive Differential Pulse Code Modulation
AES - Advanced Encryption Standard
AIFS – Arbitration Interframe Spacing
AIN - Advanced Intelligent Network (US - Bellcore)
ALT - Alternate Link Transfer (Handoff)
AM - Access Manager
AMPS - Advanced Mobile Phone Service
AMR - Adaptive Multi Rate (GSM vocoder)
AOA - Angle of Arrival
AP - Access Point (IEEE 802.11)
API - Application Programming Interface
APN - Access Point Name
ARQ - Automatic Repeat Request
ASCII - American Standard Code for Information Interchange
ASP - Application Server Provider
AT - Attention
ATIS - Alliance for Telecommunications Industry Solutions
ATM - Asynchronous Transfer Mode
BCCH - Broadcast Control Channel
BFSK - Binary Frequency Shift Keying (modulation)
BG - Border Gateway
BGCF – Breakout Gateway Control Function
B-O-QAM - Binary Offset QAM
BPSK - Binary Phase Shift Keying (modulation)
BREW - Binary Runtime Environment for Wireless
BSC - Base Station Controller
BSS - Basic Service Set (IEEE 802.11)
BSS - Base Station Subsystem (GSM, BTS+BSC)
BSSGP - Base Station Subsystem GPRS Protocol
BTA - Basic Trading Area
BTS - Base Transceiving Station
CAI - Common Air Interface
CALEA - Communications Assistance for Law Enforcement Act
CAMEL - Customised Application for Mobile networks Enhanced Logic
CAPWAP – Control and Provisioning of Wireless Access Points
CATV - Community Antenna Television
CC - Country Code
CC/T - Combined CDMA/TDMA (Omnipoint’s PCS Technology)
CCF - Call Control Function
CCITT - The International Telegraph and Telephone Consultative Committee (now ITU)
CCK - Complementary Code Keying
CCX – Cisco Compatible Extensions
CDC - Connected Device Configuration
CDMA - Code Division Multiple Access
cdma2000 - Wideband CDMA (IS-95 Based 3G Cellular)
CDPD - Cellular Digital Packet Data
CGF - Charging Gateway Function
CHAP - Challenge Handshake Authentication Protocol
CID – Connection ID (IEEE 802.16)
CLDC- Connected Limited Device Configuration (Java)
CLNP - Connectionless Network Protocol (OSI standard)
CO - Telephone Central Office
CPE - Customer Premises Equipment
CRC - Cyclic Redundancy Checksum
CS - Coding Scheme
CSCF - Call Session Control Function
CSMA - Carrier Sense Multiple Access
CSMA/CA - Carrier Sense Multiple Access / Collision Avoidance
CSMA/CD - Carrier Sense Multiple Access / Collision Detect
CSU/DSU Customer Service Unit, Data Service Unit
CT2 - Cordless Telephone version 2
CT2+ - Cordless Telephone version 2 with handoff (Canadian Standard)
CT3 - Cordless Telephone version 3
CTM - Cellular Text Modem
CTS - Clear to Send
DAC – Digital to Analog Converter
DARS - Digital Audio Radio Service
DBMS - Database Management System
DCE - Data Communications Equipment
DFSC - Diffserv Code Point
DCH - Dedicated Channel
DCS 1800 - Digital Cellular System 1800 (Europe)
DCT - Digital Cordless Telephone
DECT - Digital European Cordless Telecommunications
DEMS - Digital Electronic Messaging Services
DHCP - Dynamic Host Control Protocol
DIFS - Distributed Interframe Spacing (IEEE 802.11)
DN - Directory Number
DNS - Domain Name Service
DQPSK - Differential Quaternary Phase Shift Keying
DS - Distribution System (IEEE 802.11)
DS0 – Standard 64 kb/s Voice Channel
DS1 - ANSI Standard Trunk of 24 Voice Channels
DSL – Digital Subscriber Line
DSMA/CD - Digital Sense Multiple Access / Collision Detection
DSSS - Direct Sequence Spread Spectrum
DTE - Data Terminal Equipment
DTR - Data Terminal Ready
DVCC - Digital Verification Color Code (Cellular)
E1 - ITU Standard Trunk of 32 Voice Channels
EAP - Extended Authentication Protocol
Eb - Bit Energy
EC2 - Enhanced Cellular Control
EDACS - Enhanced Digital Access Communications System (Ericsson)
EDCF – Enhanced Distributed Control Function
EDGE - Enhanced Data Rates for GSM Evolution
EFR - Enhanced Full Rate (GSM vocoder)
EGGSN: Enhanced Gateway GPRS Support Node
EGSNN: Enhanced Serving GPRS Support Node
EIR - Equipment Identity Register
EIRP - Effective Isotropic Radiated Power
EMBARC - Electronic Mail Broadcast to a Roaming Computer
ERAN - EDGE Radio Access Network
ERMES - European Radio Message System
ESMR - Enhanced Specialized Mobile Radio
ESS - Extended Service Set (IEEE 802.11)
ETC - Enhanced Throughput Cellular (AT&T)
E-TDMA - Enhanced TDMA
ETSI - European Telecommunications Standards Institute
EV-DO – Evolution Data Optimized
FACH - Forward Access Channel
FCC - Federal Communications Commission
FCH – Frame Control Header
FDD – Frequency Division Duplex
FDM - Frequency Division Multiplexing
FDMA - Frequency Division Multiple Access
FEC - Forward Error Correction
FES - Fixed End System (CDPD)
FHSS - Frequency Hopping Spread Spectrum
FLEX - One-way Paging Protocol
FM - Frequency Modulation
FPLMTS - Future Public Land Mobile Telecommunications Systems
FSK - Frequency Shift Keying (modulation)
FTP - File Transfer Protocol
G3G - Global 3G (CDMA)
GAP - Generic Address Parameter (number portability)
GERAN - GSM EDGE Radio Access Network
GFSK - Gaussian Filtered FSK (modulation)
GGSN - Gateway GPRS Support Node
GMSK - Gaussian Minimum Shift Keying (modulation)
GNATT - Generic Enhanced Teleservice Transport (IS-136)
GPRS - General Packet Radio Service (GSM)
GPS - Global Positioning System
GSM - Global System for Mobile Communications
GTP - GPRS Tunnel Protocol (GSM)
GTP-U - GPRS Tunneling Protocol - User Plane
GUTS - General UDP Teleservice (IS-136)
GWCS - General Wireless Communications Service
HAWAII - Handoff-Aware Wireless Access Internet Infrastructure
HCF – Hybrid Coordination Function
HDLC - High Level Data Link Control
HDML - Handheld Device Markup Language
HDSL - High Speed Digital Subscriber Loop (768 kb/s per copper pair)
HIPERACCESS – High Performance Radio Access
HIPERLAN - High Performance Radio Local Area Network (ETSI, Europe)
HIPERMAN – High Performance Radio Metropolitan Area Nework
HLR - Home Location Register (Cellular)
HPSK - Hybrid Phase Shift Keying
HSCSD – High Speed Circuit-Switched Data (GSM)
HSDS - High Speed Subcarrier Data System
HSDPA - High-Speed Downlink Packet Access (UMTS)
HSS - Home Subscriber Server
HTML - Hypertext Markup Language
HUMAN - High Speed Unlicensed Metropolitan Area Network
IBSS – Independent Basic Service Set
ICMP - Internet Control Message Protocol
iDEN - Integrated Dispatch Enhanced Network
IF - Intermediate Frequency
IMAP4 - Internet Message Access Protocol Version 4
IMIE - International Mobile Station Equipment Identity
IMS – IP Multimedia Subsystem
IMSI - International Mobile Subscriber Identity
IMT-200 - International Mobile Telecommunications (Third Generation Cellular)
IMT-2000 - International Mobile Telecommunications 2000 (3G Cellular Requirements)
IMTS – International Mobile Telecommunications Service
IN - Intelligent Network (European - ETSI and ITU)
IP - Internet Protocol (TCP/IP)
IP - Intelligent Peripheral (AIN Network Element)
IPCP: Internet Protocol Control Protocol
IPX - Internet Packet Exchange (Novell Netware)
IR - Infra-Red
IRDA - Infra-Red Data Association
IS - Intermediate System (router)
IS-136 - TDMA Cellular Standard
IS-136+ - Component of UWC-136 and will be IS-136-A standard
IS-41 MAP - SS7 Based Signaling for Cellular Networks
IS-95 - CDMA Cellular Standard
ISDN - Integrated Services Digital Network
ISM - Industrial Scientific Medical (radio bands)
ISUP - ISDN User Part (SS7)
ITU-R - International Telecommunications Union - Radio
ITU-T - International Telecommunications Union - Telecommunications
IWF - Interworking Function
IXC - Interexchange Carrier
J2ME - Java 2 Micro Edition
JPEG - Joint Photographic Experts Group
JTC - Joint Technical Committee (PCS air interface standards organization)
kbps – Thousand Bits Per Second
L2TP - Layer 2 Tunneling Protocol
LAN - Local Area Network
LCP - Link Control Protocol
LDAP - Lightweight Directory Access Protocol
LEAP – Lightweight Extended Authentication Protocol
LEC - Local Exchange Carrier
LEO - Low Earth Orbit
LLC - Logical Link Control (IEEE 802)
LMDS - Local Multipoint Distribution Services
LNA - Low Noise Amplifier
LOS – Line of Sight
LRN - Location Routing Number (number portability)
LSM - Limited Size Messaging
LU - Logical Unit
MAC - Medium Access Control
MAP - Mobile Application Part (SS7)
MASC - Mobitex Asynchronous Communications Protocol
MBOA – Multiband OFDM Alliance
Mbps – Million Bits Per Second
MC - Message Center
MC-CDMA – Multicarrier CDMA
MCD - Mobile Computing Device
MDBS - Mobile Data Base Station (CDPD)
MDIS - Mobile Data Intermediate System (CDPD)
MDLP - Mobile Data Link Protocol (CDPD)
MDS - Multipoint Distribution Services
MED - Message Entry Device
MEGACO - Media Gateway Control
MES - Mobile End Systems (CDPD)
MGCF - Media Gateway Control Function
MGCP - Media Gateway Control Protocol
MGW - Media Gateway
MID - Mobile Information Device
MIDP - Mobile Information Device Profile
MIMO – Multiple Input Multiple Output
MIRS - Motorola Integrated Radio System (Renamed iDEN)
MISO – Multiple Input Multiple Output
MMF - Mobility Management Function
MMS - Multimedia Message Service
MNP - Microcom Network Protocol (proprietary)
MOA - Mobitex Operators Association
MMS - Multimedia Message Service
MPAK - Mobitex Packet
MPEG – Motion Pictures Expert Group
MPDU - MAC Protocol Data Unit (IEEE 802.11)
MRF - Multimedia Resource Function
MS - Mobile Station
MSC - Mobile Switching Center
MSIN - Mobile Subscriber Identity Number
MSISDN - Mobile Subscriber ISDN Number
MSPA – Millions Symbols Per Second
MRFC – Multimedia Resource Function Controller
MRFP – Multimedia Resource Function Processor
MSRN - Mobile Station Roaming Number
MSS - Mobile Satellite Service
MT - Mobile Telephone
MTA - Major Trading Area
MTP - Message Transfer Part (SS7)
MTP1 - Mobitex Transport Protocol 1
MTSO - Mobile Telephone Switching Office
MWIF - Mobile Wireless Internet Forum
NAK - Negative Acknowledgment
NAMPS - Narrowband Advanced Mobile Phone System
NANP - North American Numbering Plan
NAPT - Network Address and Port Translation
NBS - Narrowband Sockets
NCL - Native Control Language (ARDIS)
NDC - National Destination Code
NDIS - Network Driver Interface Specification
No - Noise Power
ODI - Open Datalink Interface (Novell Netware)
OFDM - Orthogonal Frequency Division Multiplexing
OFS - Operational Fixed System (Microwave systems)
OID – Object Identifier
OSI - Open Systems Interconnect
PA - Power Amplifier
PABX - Private Automatic Branch Exchange
PACS - Personal Access Communications System
PACS-UA - PACS PHS Based Unlicensed Standard
PACS-UB - PACS Based Unlicensed Standard
pACT - Personal Air Communications Technology
PAD - Packet Assembler Disassembler
PAN - Personal Area Network
PBCC- Packet Binary Convolutional Coding
PBX - Private Branch Exchange
PCCA - Portable Computing and Communications Association
PCCCH - Packet Common Control Channels (GSM)
PCF - Packet Control Function (CDMA)
PCF - Point Coordination Function (IEEE 802.11)
PCH - Paging Channel
PCI - Personal Communications Interface (Unlicensed CT-2+)
PCIA - Personal Communications Industry Association
PCM - Pulse Code Modulation
PCMCIA - Personal Computer Memory Card International Association
PCN - Personal Communications Network (Europe)
PCS - Personal Communications Services (US)
P-CSCF – Proxy CSCF
PCU - Packet Control Unit
PDA - Personal Digital Assistant
PDC - Personal Digital Cellular (Japan)
PDCH - Packet data channel (GSM)
PDCP - Packet Data Convergence Protocol
PDE - Position Determination Entity
PDN - Public Data Networks
PDP- Packet Data Protocol
PDSN - Packet Data Serving Node
PDTCH - Packet Data Transfer Channel (GSM)
PDU – Protocol Data Unit
PEAP – Protected Extended Authentication Protocol
PHB - Per Hop Behavior
PHP - Personal Handy Phone, now PHS (Japan)
PHS - Personal Handy Phone System (Japan)
PHY - Physical Layer (OSI reference model for networks)
PIAFS - PHS Internet Access Forum Standards
PIC - Personal Intelligent Communicator
PIFS - Point Interframe Spacing (IEEE 802.11)
PKM – Public Key Management
PLL – Phase Lock Loop
PMM - Personal Mobility Management
PMP - Paging Message Processor
PMP – Point to Multipoint
PMR - Private Mobile Radio
PoC – Push to Talk over Cellular
POCSAG - Post Office Standardization Advisory Group (paging)
PPDN - Public Packet Data Network
PPP - Point to Point Protocol (networking)
PPTP - Point-to-Point Tunneling Protocol
PRMA - Packet Reservation Multiple Access
PSAP - Public Safety Answering Point
PSDN - Public Switched Data Network
PSTN - Public Switched Telephone Network
PTMSI- Packet Temporary Mobile Subscriber Identity
PWT - Personal Wireless Telecom (Unlicensed DECT Standard)
PWLAN - Public Wireless Local Area Network
QAM - Quadrature Amplitude Modulation (modulation)
Q-O-QAM - Quartinary Offset QAM
QOS - Quality of Service
QPSK - Quaternary Phase Shift Keying (modulation)
RACE - R&D in Advanced Communications Technology in Europe
RACF - Radio Access Control Function
RACH - Random Access Channel
RADIUS - Remote Authentication Dial In User Service
RAN - Radio Access Network
RAS - Registration, Admission, Status
RBOC - Regional Bell Operating Company
RCF - Radio Control Function
RDLAP - Radio Data Link Access Protocol (ARDIS)
REFLEX - Two-way Paging Protocol
RF - Radio Frequency
RF/NCP - Radio Frequency Network Control Processor (ARDIS)
RFL - RF Sublayer
RLL - Radio Local Loop
RLP - Radio Link Protocol
RP - Radio Port (PCS Reference Model)
RPCU - Radio Port Control Unit (PCS Reference Model)
RPM - Radio Packet Modem
RRD - RF Receiving Device
RSN – Robust Secure Network
RSVP - Resource Reservation Protocol
RTCP - Teal-Time Control Protocol
RTF - Radio Terminal Function
RTP - Real-Time Transport Protocol
RTS - Request to Send
RTSP - Real-Time Streaming Protocol
RTT - Radio Transmission Technology
SAC - Service Access Code (e.g. 500 Numbers)
SACCH - Slow Associated Control Channel (cellular)
SC – Single Carrier
SCCP - Signal Connection Control Part (SS7)
SCDMA – Synchronous Code Division Multiple Access
SCEF - Service Creation Environment Function
SCF - Service Control Function
SCIM - Service Capability Interaction Manager
SCP - Service Control Point
SCR - Standard Context Routing
SDF - Service Data Function
SDP - Session Description Protocol
SDU – Service Data Unit
SGSN - Serving GPRS Support Node
SGW - Signaling Gateway
SIFS - Short Interframe Spacing (IEEE 802.11)
SIM - Subscriber Identity Module
SIP - Session Initiation Protocol
SIR - Serial Infra-Red
SLF – Subscription Location Function
SLIP - Serial Line Internet Protocol
SMAF - Service Management Access Function
SMDPP - SMS Delivery Point to Point (IS-136)
SMDS - Switched Multimegabit Data Service
SMF - Service Management Function
SMG - Special Mobile Group
SMR - Specialized Mobile Radio
SMS - Short Message Service
SMS-GMSC - Short Message Service Gateway MSC
SMS-IWMSC - Short Message Service Interworking MSC
SMTP - Simple Mail Transfer Protocol
SN - Service Node (AIN Network Element)
SNA - System Network Architecture (IBM)
SNDCF - Subnetwork Dependent Convergence Function (CDMA)
SNDCP - Subnetwork Dependent Convergence Protocol (CDPD)
SPM - Service Profile Management
SPX - Sequenced Packet Exchange (Novell Netware)
SRF - Special Resource Function
SS – Subscriber Station
SS7 - Signaling System 7
SSF - Service Switching Function
SSID – Service Set Identifier
SSL – Secure Sockets Layer
SSP - Service Switching Point (AIN Switch)
STC - Space Time Coding
STP - Service Transfer Point
SU - Subscriber Unit
T1 - ANSI Standard Trunk of 24 Voice Channels
TAC - Total Area Coverage (Motorola)
TACS - Total Access Communications System
TAM - Two Way Asymmetric Messaging (Motorola paging system)
TAP - Telocator Alpha/Numeric Protocol (paging)
TAPI - Telephony API
TCAP - Transaction Capabilities Application Part (SS7)
TCP - Transmission Control Protocol (TCP/IP)
TDD - Time Division Duplex
TDMA - Time Division Multiple Access
TDOA - Timed Difference of Arrival
TDP - Telocator Data Protocol (paging)
TE - Terminal Equipment
TETRA - Trans European Trunked Radio System
TFC - Telocator Format Conversion
TIA - Telecommunications Industry Association
TKIP – Temporal Key Integrity Protocol
TLDN - Temporary Listed Directory Number (cellular)
TMC - Telocator Mobile Computer Protocol
TME - Telocator Message Entry Protocol
TMM - Terminal Mobility Management
TMSI - Temporary Mobile Subscriber Identity
TNPP - Telocator Numeric Paging Protocol
TP4 - Transport Protocol 4 (OSI)
TRT - Telocator Radio Transport Protocol
TXCEL - Throughput Accelerator (Celeritas)
UART - Universal Asynchronous Receiver Transmitter
UDP - User Datagram Protocol
UMTS - Universal Mobile Telecommunications System
U-NII - Unlicensed National Information Infrastructure
UMA – Unlicensed Mobile Access
UPT - Universal Personal Telecommunications (European)
USART - Universal Synchronous/Asynchronous Receiver Transmitter
UTAM - Unlicensed PCS Adhoc Committee for Microwave Transition and Management
UTRA - Universal Mobile Telecommunications Terrestrial Radio (GSM Based 3G)
UTRAN - UMTS Terrestrial Radio Access Network
UWB - Ultra-Wide Band
UWC-136 - Universal Wireless Communications 136 (IS-136 Based 3G Cellular)
UWC-136 HS - Component of UWC-136
VC - Voice Channel
VF - Voice Frequency
VFIR - Very Fast IR
VLR - Visitor Location Register (cellular)
VoIP - Voice over IP
VOP - Voice Over Packet
VPN – Virtual Private Network
VRU - Voice Response Unit
VSELP - Vector Sum Linear Prediction (speech coding)
VSF-CDMA - Variable Spreading Factor Code Division Multiple Access
VSF-OFCDM - Variable Spreading Factor Orthogonal Frequency and Code Division Multiplexing
W3C - World Wide Web Consortium
WACS - Wireless Access Communications System (Bellcore - Now PACS)
WAE - Wireless Application Environment
WAFU - Wireless Access Fixed Unit (Wireless Local Loop)
WAN - Wide Area Network
WAP - Wireless Application Protocol
WARC - World Administrative Radio Conference
W-CDMA - Wideband CDMA
WCPE - Wireless Customer Premises Equipment
WCS - Wireless Communications Service
WEP – Wired Equivalency Protocol
Wi-Fi – Wireless Fidelity
WiMAX - Worldwide Interoperability for Microwave Access
WIMS W-CDMA - Wireless Multimedia Messaging Services W-CDMA (GSM Based 3G)
WIN - Wireless Intelligent Network (Cellular and PCS)
WISPR - Wireless ISP Roaming
WML - Wireless Markup Language
WMM – Wireless Multimedia
WPA – Wi-Fi Protected Access
WTA - Wireless Telephony Application
WTLS - Wireless Transport Layer Security
WWW - World Wide Web
XML - Extensible Markup Language
XSL - Extensible Style Sheet