Ericsson Radio Systems AB KRC16131 Manuel D’Utilisation
Glossary
The TRA Unit in BSC performs
transcoding of speech information and rate
adaption of data information.
transcoding of speech information and rate
adaption of data information.
Tracy
ASIC in the TRU
TRX
Transceiver
TS
Time Slot
A 0.577 ms period (TDMA frame subunit)
corresponding to 156.25 raw bits of
information. The eight time slots of each
TDMA frame are numbered 0...7.
corresponding to 156.25 raw bits of
information. The eight time slots of each
TDMA frame are numbered 0...7.
-> Burst
TT
Total Time
TX
Transmitter
TXU
Transmitter Unit
UAS
Unavailable Seconds
UL
Underwriters Laboratories Inc.
Uplink
Signalling direction, from the MS to the
system.
system.
UPS
Uninterrupted Power Supply
VCO
Voltage Controlled Oscillator
VSWR
Voltage Standing Wave Ratio RF signal
measure. The quotient between
transmitted and reflected power.
measure. The quotient between
transmitted and reflected power.
X bus
The X bus carries transmit air data frames
between trancievers. This is used for
baseband frequency hopping.
between trancievers. This is used for
baseband frequency hopping.
306 (306)
EN/LZT 123 2697
R5A
1998-08-13
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