Acronyms  &  Definitions 

2G 

second Generation of wireless communication systems 

3G 

third Generation of wireless communication systems 

A/D 

Analog-to-Digital 

ACPR 

Adjacent-Channel Power Ratio 

AGC 

automatic Gain Control 

AMPS 

Advanced Mobile Phone System 

ASK 

Amplifier Shift Keying 

ATM 

Asynchronous Transfer Mode 

AWGN 

Additive White Gaussian Noise 

BER 

Bit Error Rate 

BPSK 

Binary Phase Shift Keying 

BW 

Bandwidth 

CCRR 

Co-Channel Rejection Ratio 

CDMA 

Code - Division - Multiple - Access 

CDPD 

Cellular Digital Packet Data 

CMRR 

Common-Mode Rejection Ratio 

CTIA 

Cellular Telecomm Industry Association 

CW 

Continuous Wave 

DCS 

Digital Communications Systems (Europe) 

DECT 

Digital European Cordless Telephone 

DSATS 

Digital SATS 

DSP 

Digital Signal Processing 

FDMA 

Frequency -Division Multiple Access 

GPS 

Global Positioning System 

GSM 

Global System for Mobile Communications (Digital) 

I and Q 

In-Phase & Quadrature Phase Components 

IS54 

"Iterim Standard 54" Dual-Mode TDMA/AMPS 

IS95 

"Iterim Standard 95" Dual-Mode CDMA/AMPS 

ISDN 

Integrated Services Digital Network 

ISM Band 

Industrial - Scientific - Medical 

LAN 

Local Area Network 

LMDS 

Local Multipoint Distribution Services 

MMDS 

Multichannel Multipoint Distribution Services 

NAMPS 

Narrow-Band AMPS 

PACS 

Personal Access Communications System (USA) 

PBX 

Public Branch Exchange 

PCN 

Personal Communications Network 

PCS 

Personal Communication System/Services 

PDA 

Personal Digital Assistant 

PDC 

Personal Digital Cellular (Japan) 

PDDN 

Private Digital Data Network 

PHS 

Personal Handyphone System (Japan Cordless) 

PLL 

Phase Lock Loop 

POTS 

Plain Old Telephone System 

PSTN 

Public Switched Telephone Network 

SATS 

Supervisory Audio Tones 

SCPC 

Single Channel per Carrier 

SNR 

Signal to Noise Ratios 

TACS 

Total Access Communications System (UK Analog) 

TDMA 

Time - Division - Multiple - Access 

TDU 

Telecomm Delivery Unit 

VSAT 

Very Small Aperture Terminals 

VSELP 

Vector-Sum excited Linear-Predictive 

WLAN 

Wireless LAN 

WLL 

Wireless Local Loops