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WCDMA Multi Evaluation Measurement
R&S
®
CMW-KG4xx/-KM4xx/-KS4xx
548
User Manual 1173.9657.02 ─ 11
3.2 General Description
The WCDMA multi evaluation measurement included in option R&S CMW-KM400 cap-
tures an uplink (UL) WCDMA signal and provides the TX measurement results over a
series of consecutive slots. The uplink signal may contain HSPA or HSPA+ channels if
the relevant option is installed: R&S CMW-KM401 for HSPA, R&S CMW-KM403 for
HSPA+ and additionally R&S CMW-KM405 for dual carrier HSUPA with dual carrier
HSDPA+.
For RX measurements, a well defined downlink (DL) WCDMA signal has to be looped
back by the UE. This DL signal can be generated using the WCDMA generator (option
R&S CMW-KG400) or an ARB file (option R&S CMW-KW400). The WCDMA multi
evaluation measurement captures the resulting uplink WCDMA signal and provides RX
measurement results, under the assumption that all bit errors are caused by the RX
part of the UE.
The following sections describe how to perform and configure the measurement.
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Limit Settings and Conformance Requirements
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3.2.1 WCDMA TX Tests
TX tests have many characteristics in common. The following sections describe these
characteristics and show how to perform TX tests.
3.2.1.1
Test Setup
The external RF signal source (mobile station, signal generator etc.) is connected to
one of the RF input connectors (RF COM) at the front panel of the R&S
CMW. No
additional cabling and no external trigger is needed.
The input level ranges of all RF COM connectors are identical.
See also: "RF Connectors" in the R&S
CMW user manual, chapter "Getting Started"
Fig. 3-1: Connecting an RF transmitter to the instrument
General Description
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