Glossary
RACH
Random Access CHannel
Uplink only subchannel of CCCH for MS
request for allocation of a dedicated
channel.
-> CCCH
RAI
Remote Alarm Indication
RAM
Random Access Memory
RBS
Radio Base Station
All equipment forming one or more
Ericsson base stations.
->BTS
RBS 2000
New RBS generation
Remote mode
When the RU is in RU mode Remote, a
link is established between the BCS and
the central main RU.
RF
Radio Frequency
RLC
Repair Logistic Centre
R-state
Release state
RTN
Return
RU
Replaceable Unit
An RU consists of one or more HWUs.
An RU may be replaced by another RU of
the same type. The RU is the smallest
unit that can be handled on site.
RX
Receiver
RXA
Receiver antenna branch A
RXB
Receiver antenna branch B
RXDA
Receiver Divider Amplifier
RXQUAL
Measure of signal quality as defined in
GSM 05.08:8.2.4
RXU
Reciver Unit
SES
Severely Errored Second
SO
Service Object
Sub RU
A sub-replaceable unit is always
connected to a superior Main RU. This
304 (306)
EN/LZT 123 2697
R5A
1998-08-13
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