A8 Ciphering key generating algorithm A8
AAL ATM Adaptation Layer
AAL2 ATM Adaptation Layer type 2
AAL5 ATM Adaptation Layer type 5
AB Access Barring
AB Access Burst
ABS Almost Blank Subframe
AC Access Category
Access Class (C0 to C15)
Access Condition
Authentication Centre
Application Context
Access Class (of the USIM)
ACC Automatic Congestion Control
ACCH Associated Control Channel
ACDC Application specific Congestion control for Data Communication
ACELP Algebraic Code Excited Linear Prediction
ACIR Adjacent Channel Interference Ratio
ACK Acknowledgement
ACK Acknowledgement (in HARQ protocols)
ACL APN Control List
ACLR Adjacent Channel Leakage Power Ratio
ACLR Adjacent Channel Leakage Ratio
ACM Accumulated Call Meter
Address Complete Message
ACMmax ACM (Accumulated Call Meter) maximal value
ACRR Adjacent Channel Rejection Ratio
ACS Adjacent Channel Selectivity
ACU Antenna Combining Unit
ADC Administration Centre
Analogue to Digital Converter
ADCH Associated Dedicated Channel
ADF Application Dedicated File
ADM Access condition to an EF which is under the control of the authority which creates this file
ADPCM Adaptive Differential Pulse Code Modulation
ADR Accumulated Delta-Range
AE Application Entity
AEC Acoustic Echo Control
AEF Additional Elementary Functions
AESA ATM End System Address
AFC Automatic Frequency Control
AGCH Access Grant CHannel
A-GNSS Assisted-GNSS
AI Acquisition Indicator
Ai Action indicator
AICH Acquisition Indicator Channel
AID Application IDentifier
AIUR Air Interface User Rate
AK Anonymity Key
AKA Authentication and Key Agreement