CDMA2000 Signaling
R&S
®
CMW-KG8xx/-KM8xx/-KS8xx
471
User Manual 1173.9511.02 ─ 11
Most measurements require the transmission of data. For a test mode connection the
signaling application takes care of forward link data transmission. For a packet data
connection the signaling application does not transfer data. So you must generate IP
traffic by other means, e.g. using the DAU. You may for example initiate an IPerf mea-
surement or an FTP data transfer. For details refer to the DAU documentation. Some
DAU measurements and applications require to enter the IP address(es) assigned to
the MS. You can retrieve this information from the MS info section, see
4.2.4 Audio Measurements
The "Audio Measurements" application provides an audio signal for audio tests and
can analyze the audio signal by means of audio measurement option. This allows for
example microphone- and speaker tests for a mobile phone.
In addition the audio board houses a speech codec board, that provides an interface to
the signaling units of the R&S
CMW. It decodes the signal delivered by a CDMA2000
signaling application or encodes an audio signal and delivers it to the CDMA2000 sig-
naling application.
The speech codec allows a signaling application CDMA2000 to support the whole
transmission chain of the signal from analog input into the DUT's microphone through
the RF to the output of the AF signal, as well as the reverse way. Here, the format of
the AF signal is selectable between digital (SPDIF), and analog (AF connectors).
Which option is required, depends on your instrument:
●
Option R&S CMW-B400B "Audio Analyzer/Generator" is compatible to R&S
CMW
delivered after November 2011. It is also compatible to R&S
CMW delivered before
November 2011, that have been upgraded with R&S CMW-U5024.
●
Option R&S CMW-U400 "Audio Analyzer/Generator" is compatible to R&S
CMW
delivered before November 2011, that have not been upgraded with R&S CMW-
U5024.
●
The audio board must be enhanced with a speech codec board (R&S CMW-
B405A).
The procedure outlined below is applicable to audio measurements with the
"CDMA2000 signaling" application and describes an example of the test setup for the
microphone- and speaker test. For the detailed information and additional test setups
refer to the user manual of the audio measurements application.
To set up an audio connection, perform the following steps:
1. Connect the DUT with the analog AF connectors provided by the R&S
CMW with
an installed audio board.
General Description
深圳德标仪器
135-1095-0799
