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LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
172
User Manual 1173.9628.02 ─ 16
SPS TwoIntervalsConfig TDD
Configures the parameter "twoIntervalsConfig", signaled to the UE for scheduling type
SPS in TDD mode. The parameter is specified in 3GPP TS 36.321.
Remote command:
Max Throughput
Displays the expected maximum throughput in Mbit/s (averaged over one frame). For
the downlink the value refers to the sum of all PCC streams or all SCC streams.
Remote command:
TTI Bundling
Enables or disables TTI bundling for the uplink.
With TTI bundling, the UE sends the same data with different redundancy versions in
four subsequent TTIs. TTI bundling is faster than HARQ. So TTI bundling makes sense
if the channel quality is bad and the application is delay-sensitive, for example voice
over LTE.
The following restrictions apply for TTI bundling:
●
UL RB configuration:
–
Number of RB
≤
3
–
Modulation type QPSK
●
TDD:
–
UL/DL configuration = 0, 1 or 6
–
User-defined scheduling (global, not TTI-based)
●
FDD:
–
User-defined scheduling (global, not TTI-based) or SPS
Option R&S CMW-KS510 is required.
Remote command:
ROHC
This node configures robust header compression (ROHC).
Header compression is relevant for the continuous transfer of small packets, for exam-
ple for voice over LTE. Here, the uncompressed header is typically bigger than the
payload. Header compression reduces the radio resources required for a voice call.
ROHC is specified in 3GPP TS 36.323 and the references stated therein.
Option R&S CMW-KS510 is required.
GUI Reference
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