LTE Multi Evaluation Measurement
R&S
®
CMW-KM5xx/-KS5xx
511
User Manual 1173.9628.02 ─ 16
Fig. 3-10: Frequency error limit settings
Characteristics
Refer to 3GPP TS 36.521 V10.3.0, section...
Specified limit
Frequency Error
6.5.1 Frequency Error
6.5.1A Frequency Error for CA
< 0.1 ppm
3.2.5.4
I/Q Origin Offset Limits
An I/Q origin offset is due to an additive sinusoid waveform at the frequency of the ref-
erence signal. The standard specifies the I/Q origin offset power limit as a function of
the output power of the UE transmitter ("TX Power", see table below).
I/Q origin offset limits for three different TX power ranges can be set in the configura-
tion dialog, depending on the modulation scheme.
Fig. 3-11: I/Q origin offset limit settings
Characteristics
Refer to 3GPP TS 36.521 V10.3.0, sec-
tion...
TX power
Specified limit
I/Q Origin Offset
6.5.2.2 Carrier Leakage
6.5.2A.2 Carrier Leakage for CA
> 0 dBm
0 dBm to -30 dBm
< -30 dBm to -40 dBm
-24.2 dBc
-19.2 dBc
-9.2 dBc
3.2.5.5
Inband Emissions Limits
The inband emission is the relative UE output power of non-allocated resource blocks
(RBs). Inband emissions are interferers in the subcarrier range that is potentially used
by other connected UEs. 3GPP defines a quite complex combined inband emission
limit described below.
The combined limit can be determined via the following rules:
●
The minimum of the combined limit is -29.2 dB. In the R&S
CMW this general mini-
mum is configurable.
●
A general component is considered for all non-allocated RBs.
●
For non-allocated RBs at image frequencies of allocated RBs, an IQ image compo-
nent is added to the general component.
●
For RBs at or directly adjacent to the carrier frequency, an IQ offset component is
added to the general component.
This means the most complex limit has to be determined for a non-allocated RB loca-
ted both at an image frequency and directly adjacent to the carrier frequency. In that
General Description
深圳德标仪器
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