Reference Manual

Channel Measurements
29 Channel Measurements
The RBS supports:
•
Active Channel Measurements, that is quality and signal strength
measurements on active uplink dedicated channels.
• Idle Channel Measurements, that is signal strength measurements
on idle uplink dedicated channels.
29.1 References
/GSM:08.58/
/GSM:05.08/
/GSM:05.02/
Whenever a reference is made to a function described in another chapter,
please refer to the table of contents to find the appropriate chapter.
29.2 Concepts
RX Reference Point Defined as the point where the RX antenna
signal crosses the RBS border, that is the
connector for the antenna feeder.
Reporting Period TDMA frames used for measurements, as
defined in /GSM 05.08:8.4/.
RXLEV Measure of signal strength as defined in /
GSM 05.08:8.1.4/.
RXLEV_FULL RXLEV measured over a whole SACCH
multiframe.
RXLEV_SUB RXLEV measured over a subset of a
SACCH multiframe.
RXQUAL Measure of signal quality as defined in /
GSM 05.08:8.2.4/.
RXQUAL_FULL RXQUAL measured over a whole
SACCH multiframe.
RXQUAL_SUB RXQUAL measured over a subset of a
SACCH multiframe.
29.3 Functions
29.3.1 Active Channel Measurements
By means of the basic measurement reporting procedure /
GSM:08.58:4.5.1/, the RBS performs quality and signal strength
measurements on all active uplink dedicated channels. The RBS also
performs speech quality measurements on these channels.
Measurements on channel combinations, (i), (ii), (iii) (only HW
support), (v), (vii), (viii), (ix) and (x) are supported, /GSM:05.02:6.4/.
EN/LZT 720 0008 P2A
2001-11-28
281 (485)
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