User's Manual Part 4

RBS 2308 and RBS 2309 User’s Guide
cabinet
Physical housing of a base station.
cascading
Connection of several cabinets by a PCM cable; similar
to serial connection.
CBCH Cell Broadcast Channel
Downlink-only channel used by the GSM-defined
SMSCB function.
CCCH Common Control Channel
Channel combining the following common control
channels:
• AGCH Access Grant Channel
• PCH Paging Channel
• RACH Random Access Channel
CCH Control Channel
CCU Climate Control Unit
CDU Combining and Distribution Unit
CE Communauté Européenne: European Community (EC)
cell
Area of radio coverage identified by the GSM network
by means of the cell identity.
CEU Coverage Extension Unit
CF Central Functions
channel
Virtual connection consisting of physical and logical
channels between the BSS and MS during a call in
progress.
⇒ logical channel ⇒ physical channel
channel
combination
Physical channel on an air interface carrying a defined
set of l ogical channels.
CHGR Channel Group
Group of dedicated logical channels to a specific MS.
CLI Command Line Interface
CLU Climate Unit
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EN/LZT 720 0027 Uen R8A 2006-06-27