13
GSM/EDGE
base station BERT
Option 300 (includes
baseband BER testing)
ETSI compliant receiver testing for
GSM/EDGE base stations is now
available on the ESG platform.
Option 300 provides basic measure-
ment modes for GSM base station
test, such as BER and sensitivity
search.
Option 300 also provides basic mea-
surement modes for EDGE/EGPRS
base station test, such as,
BER/BLER and sensitivity measure-
ments.
The E4406A VSA transmitter tester
conveniently provides the required
external down conversion while
fulfilling the transmitter test needs.
The chosen implementation of RF
loop back permits device indepen-
dent test of base station and base
transceiver modules.
Description
Option 300 requires UN8 revision C,
real-time I/Q baseband generator.
Option 202, EDGE personality,
is required for EDGE BTS test
functions. Option UNA, alternate
time slot level control, is highly
recommended. Option 300 also
requires an external down converter.
The E4406A VSA can provide this
requirement. An ordering conve-
nience bundle combines the E4406A
VSA and ESG configured for GSM
and GSM/EDGE base station
transmitter and receiver tests.
These numbers are as follows:
Bundle Contents:
GSM BTS test: E4433Z Option 301
E4433B ESG (4 GHz)
#UN8 (real-time I/Q baseband
generator)
#300 (includes baseband BER tester)
#UNA (alternate time slot level
control)
#1CP (rackmount and handle kit)
#1E5 (high-stability timebase)
E4406A VSA
#BAH (GSM measurement
personality)
#300 (321.4 MHz output)
#1CP (rackmount and handle kit)
GSM/EDGE BTS test: E4433Z Option 302
E4433B ESG (4 GHz)
#UN8 (real-time I/Q baseband
generator)
#300 (includes baseband BER tester)
#202 (EDGE personality)
#UNA (alternate time slot level
control)
#1CP (rackmount and handle kit)
#1E5 (high-stability timebase)
E4406A VSA
#202 (GSM and EDGE measurement
personality)
#300 (321.4 MHz output)
#1CP (rackmount and handle kit)
Key features for GSM BTS test
BTS Bit Error Rate Testing (BERT)
Complete residual BER measure-
ments of class Ib and class II bits
and FER measurements. The
VSA/ESG BERT solution provides
the user control of the resolution
and the length of the measurement,
by selecting the number of frames.
Sensitivity search
Quickly establish the level at which
a specified class II RBER occurs.
The user can set the specified level
from 20 dBm to –136 dBm, and
the number of frames measured.
Search times are typically less than
15 seconds for 100 speech frames.
The results can be reported as a
number or as a pass/fail.
Limits and threshold testing
To minimize manufacturing test time,
both BERT and sensitivity search
can be tested to limits, or abandoned
after a set threshold.
Key features for
GSM/EDGE BTS test
Includes all of GSM measurement
capabilities, plus EDGE/EGPRS
features.
BER/BLER and sensitivity testing
Verify the demodulation and decod-
ing of receivers with fully coded
MCS-5 and MCS-9 signals.
Measure payload bit error rate and
total burst count for uncoded BER.
Coded channels may be measured
for erased data block count/rate.
User may set block count, bit count,
pass/fail limits, and threshold number
of events to stop measurements.
Perform sensitivity measurements.
User may set radio block count,
target BLER%, pass amplitude, and
high and low amplitudes.
GSM base station bit error rate test.
To Next Page
Loading...
Need help?
General
