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LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
11
User Manual 1173.9628.02 ─ 16
2 LTE Signaling
The "LTE signaling" firmware application emulates an E-UTRAN cell and communi-
cates with the UE under test. The UE can synchronize to the downlink signal and
attach to the PS domain. A connection can be set up (3GPP compliant RMC or user-
defined channel).
Two basic signaling options are available: R&S CMW-KS500 for R8 FDD signals and
R&S CMW-KS550 for R8 TDD signals. At least one of these basic options is required
to use the signaling application. Both basic options support only configurations with a
single antenna (SISO).
The basic functionality can be enhanced via the following options:
●
R&S CMW-KS502 adds support of DL carrier aggregation for FDD signals.
R&S CMW-KS552 adds support of DL carrier aggregation for TDD signals.
●
R&S CMW-KS510 provides advanced parameter settings for R8.
●
R&S CMW-KS512 provides advanced parameter settings for R10.
●
R&S CMW-KS520 adds support of DL beamforming, MIMO 2x2 and SIMO 1x2.
R&S CMW-KS521 is additionally required for downlink MIMO 4x2.
●
R&S CMW-KS525 adds a user-defined operating band with configurable band indi-
cator, frequencies and channel numbers.
●
R&S CMW-KE100 and R&S CMW-KE500 enable internal fading.
R&S CMW-KE501 is additionally required for MIMO 4x2 fading
Tests can be performed using the LTE "Multi Evaluation" measurement, the "PRACH"
measurement or the "SRS" measurement (all included in options R&S CMW-KM500
and R&S CMW-KM550).
Data transfer tests can be performed using the Data Application Unit (DAU, option
R&S CMW-B450x and R&S CMW-KM050). The DAU also provides an IMS server for
voice over IMS and SMS over IMS. Audio tests can be performed using the audio
board plus a speech codec (R&S CMW-B400B and R&S CMW-B405A).
The "LTE signaling" application provides additional measurements. For details refer to:
●
chapter 2.3.1, "Combined Signal Path Measurements"
●
chapter 2.2.18, "Relative Power Control Tests"
●
chapter 2.3.2, "LTE IP-Based Data Tests"
●
chapter 2.2.19, "Extended BLER Measurement"
●
chapter 2.2.20, "RLC Throughput Measurement"
2.1 What's New in this Revision
This revision describes version 3.2.80 and later of the "LTE Signaling" firmware appli-
cation. Compared to version 3.2.70, it provides the following new features and
changes:
●
RLC throughput measurement, see
RLC Throughput Measurement Configuration
What's New in this Revision
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