16QAM      16-Quardarture Amplitude Modulation

2BB-LQC   Two Burst Based Link Quality Control ( EGPRS)

3G               Third Generation  Cellular Communication Systems

3GPP           Third Generation Partnership project.

64QAM       64 Quadrature Amplitude Modulation

8PSK           8- Phase Shift Keying

A

A-Slot          Acknowledgement Slot.

AB               Access Burst

ACCH          Access Control Channel

ACI              Adjacent Channel Interface

ACK            Positive Acknowledgement

ACTS          Advanced Communications Technologies and Services

AGCH         Access Grant Channel

AI                Access Indicator

AICH         AICH Access Indicator Channel

AIUR         Air interface user rate

AMC          Adaptive Modulation and Coding

AMPS        Advanced Mobile Phone System

AMR         Adaptive Multi-Rate Voice Codec

AN            Access Network

APN          Access Point Name

ARQ          Automatic Repeat Request

ASC          Access Service Class

ASCI         Advanced Speech Call Item

ATM         Asynchronous Transfer Mode

ATDMA   Advanced TDMA

AUC        Authentication Centre

AWGN    Additive white Gaussian Noise