User's Manual Part 3

RBS 2109 User’s Guide
• AGCH Access Grant CHannel
CCU
Climate Control Unit
CDU
Combining and Distribution Unit
CE
Conformité Européenne
cell
An area of radio coverage identified by the GSM
network by means of the cell identity.
CEU
Coverage Extension Unit
CF
Central Functions
channel
The common term channel denotes the virtual
connection, consisting of physical and logical channels,
between BSS and MS, during a call in progress.
⇒ Logical Channel ⇒ Physical Channel
Channel
Combination
A physical channel on an air interface carrying a defined
set of logical channels.
Channel group
A channel group is a group of dedicated logical
channels to a specific MS.
CM
Control Module (for TMA)
CMD
Digital Radio Communication Tester
CME 20
Cellular Mobile Europe
- CME 20 Ericsson digital land mobile telecommunication
system based on the GSM standards.
- CME 201 Ericsson GSM system comprising Ericsson
equipment only.
CMRU
Central Main Replaceable Unit.
The RBS is physically connected to the Base Station
Controller (BSC) via the CMRU. There is only one
CMRU in each RBS.
Macro
CMRU = DXU
Micro
CMRU = The whole RBS
RBS 2308
CMRU = IXU
CMS 40
Cellular Mobile System
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N/LZT 720 0090 Uen R1A 2004-09-17