Glossary
45
Glossary
This glossary lists abbreviations and acronyms used in texts dealing
with RBS 2301. Some basic terms and acronyms needed for
cross-references are included in the list.
In the RBS manuals, terminology defined by GSM is used together with
terms related to Ericsson and the CME 20 and CMS 40 projects.
Terms and Abbreviations
An arrow -> is used to indicate a reference to another entry in this list.
AAU
Active Antenna Unit
Abis
GSM interface standard defining attributes
of the communication between BSC and
BTS.
AC
Alternating Current
A/D converter
Analog to Digital converter
AIS
Alarm Indication Signal
AO
Application Object
ARFCN
Absolute Radio Frequency Channel
Number
ARP
Antenna Reference Point
ASIC
Application Specific Integrated Circuit
Astra
ASIC in the TRU
BCCH
Broadcast Control CHannel
Downlink only broadcast channel for
broadcast of general information at a base
station, on a base station basis.
BER
Bit Error Rate
BSC
Base Station Controller
GSM network node for control of one or
more BTSs.
BSCSim
Base Station Controller Simulator
BSS
Base Station System
GSM network logical unit comprising one
BSC and one or more BTSs.
BTS
Base Transceiver Station
GSM network unit operating on a set of
radio frequency channels in one cell.
EN/LZT 123 2697
R5A
1998-08-13
297 (306)
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