LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
147
User Manual 1173.9628.02 ─ 16
If duplex mode TDD is active, the radio frame structure is displayed for information
(lines "Subframe Number" and "Direction").
For some scheduling types, the uplink-downlink configuration is set automatically and
grayed-out.
Option R&S CMW-KS510 is required for configuration of the parameter.
Option R&S CMW-KS550 is required for configuration and display of the parameter.
Remote command:
Special Subframe ← TDD
Configuration of the special subframes of a TDD signal, as defined in 3GPP TS
36.211, chapter 4, "Frame Structure". Each configuration defines the inner structure of
a special subframe, i.e. the lengths of DwPTS, GP and UpPTS.
Option R&S CMW-KS550 required.
Remote command:
PRACH
The following parameters configure settings related to the random access procedure.
No Response to Preambles, # Ignored Preambles ← PRACH
By default the signaling application responds to received preambles, so that the UE
can perform an attach. Alternatively received preambles can be ignored (no response),
so that the UE continues to send preambles and PRACH measurements can be per-
formed (included in R&S CMW-KM500/-KM550).
"Off"
The signaling application responds to received preambles.
"On"
Any received preambles are ignored by the signaling application (no
response).
"# Ignored Pre-
ambles"
The number of preambles to be ignored by the signaling application is
configured via parameter "# Ignored Preambles". Subsequent pream-
bles are answered.
This value can only be selected if parameter "Power Ramping Step"
is set to 0 dB.
Remote command:
GUI Reference
深圳德标仪器
135-1095-0799
