R&S CMW-KM5 Series, User Manual

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LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
13 User Manual 1173.9628.02 ─ 16
● Physical DL Channels and Signals ......................................................................... 30
● MIMO and Beamforming .........................................................................................34
● Scheduling Type RMC ............................................................................................ 39
● User-Defined Channels ...........................................................................................51
● CQI Channels ..........................................................................................................53
● Semi-Persistent Scheduling (SPS) ......................................................................... 56
● Operating Bands ..................................................................................................... 57
● Trigger Signals ........................................................................................................60
● Relative Power Control Tests ..................................................................................61
● Extended BLER Measurement ................................................................................63
● RLC Throughput Measurement ...............................................................................73
2.2.1 Test Setups
The following sections provide an overview of typical test setups for the individual sce-
narios.
2.2.1.1 Test Setup for Scenario 1 Cell - 1 RF Out
The basic test setup for a "1 Cell - 1 RF Out" scenario uses a bidirectional RF connec-
tion between the tester and the device under test (DUT). It carries both the downlink
and the uplink signal:
●
The R&S CMW transmits the downlink signal to which the DUT can synchronize in
order to perform an attach. The downlink signal is used to transfer signaling mes-
sages and user data to the DUT.
●
The DUT transmits an uplink signal that the R&S CMW can receive and decode in
order to set up a connection and perform various measurements.
For this setup, the DUT is connected to one of the bidirectional RF COM connectors at
the front panel of the R&S
CMW. No additional cabling and no external trigger are nee-
ded. 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. 2-1: Test setup for "1 Cell - 1 RF Out"
2.2.1.2 Test Setup for Scenario 1 Cell - 2 RF Out
The scenario "1 Cell - 2 RF Out" is used for setups with two UE RX antennas (SIMO
1x2, MIMO 2x2, MIMO 4x2 and beamforming). A test setup for this scenario involves
one uplink and two downlink signals at the UE side. Typically, one bidirectional con-
General Description
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