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LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
163
User Manual 1173.9628.02 ─ 16
The relevant value depends on the conformance test to be performed, see 3GPP TS
36.521 and 3GPP TS 36.508.
Remote command:
Connection Type
Configures the connection type to be applied at the R&S
CMW.
●
"Testmode":
The test mode uses only layer 1 and 2 of the protocol stack. Layer 3 is not used.
This mode is suitable for any signaling tests not involving the Data Application Unit
(DAU).
●
"Data Application":
The data application mode supports also layer 3, required for IP-based services.
Select this mode if you want to perform data application measurements using the
DAU. See also
chapter 2.2.6, "Data Tests and Voice Over LTE"
on page 24 and
chapter 2.3.2, "LTE IP-Based Data Tests"
This value requires an installed DAU with option R&S CMW-KM050, or an external
DAU.
Remote command:
External DAU
Usually, the DAU is installed on the same R&S
CMW as the LTE signaling application.
If all expansion slots of this R&S
CMW are occupied by other hardware options, a DAU
installed on another R&S
CMW can be used instead (external DAU).
Using an external DAU is only possible if the instrument where the LTE signaling appli-
cation is running fulfills the following prerequisites:
●
No DAU is installed
●
Option R&S CMW-KA120 is available
●
An ethernet switch is installed (option R&S CMW
‑
B660A plus -B661A)
Use external DAU ← External DAU
Enable the checkbox if you want to use an external DAU.
The two instruments must be connected via LAN. For details, refer to the DAU docu-
mentation.
Remote command:
Network Segment, Subnet Node ID ← External DAU
Select the values of the instrument where the external DAU is installed. You can check
the values in the "Setup" dialog > "Misc" > "IP Subnet Config".
The two instruments must use the same network segment and must have different
node IDs.
Remote command:
GUI Reference
深圳德标仪器
135-1095-0799