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LTE Multi Evaluation Measurement
R&S
®
CMW-KM5xx/-KS5xx
517
User Manual 1173.9628.02 ─ 16
the mean power in the assigned E-UTRA channel divided by the mean power in an
adjacent channel) shall be greater than the limits listed in the following table.
The ACLR must be evaluated for the first adjacent UTRA channel (UTRA1) and the
first adjacent E-UTRA channel (E-UTRA). For channel bandwidths > 3 MHz, also the
ACLR for the second adjacent UTRA channel (UTRA2) must be evaluated.
For carrier aggregation, the term "E-UTRA channel" refers to the aggregated band-
width. Adjacent E-UTRA channels have the same bandwidth as the assigned E-UTRA
channel.
The default settings are suitable to check the 3GPP requirements. The relative limits
are only evaluated, if the corresponding absolute limit is exceeded. If you disable an
absolute limit, the corresponding enabled relative limit is always evaluated.
Characteristics
Refer to 3GPP TS 36.521 V10.3.0, section...
Relative limit
ACLR
6.6.2.3 Adjacent Channel Leakage power Ratio
6.6.2.3A Adjacent Channel Leakage power Ratio for CA
UTRA1: 32.2 dB
UTRA2: 35.2 dB
E-UTRA: 29.2 dB
3.2.5.11
Power Dynamics Limits
Transmission at excessive uplink power increases interference to other channels. A
too low uplink power increases transmission errors. 3GPP defines the "General
ON/OFF Time Mask" to test the UL power in subframes not used for transmission
(transmit OFF power), subframes used for transmission (transmit ON power) and the
power ramping between them.
The ON power is specified as the mean UE output power within a subframe used for
transmission, excluding a transient period of 20 µs at the beginning of the subframe.
According to 3GPP, subframe number 3 has to be used. For the measurement, the
used subframe is selected via the parameter "Measure Subframe", see
For the OFF power, the mean power has to be measured both in the preceding sub-
frame and in the subsequent subframe, for the latter excluding a transient period of 20
µs at the beginning.
The following figure provides a summary of the time periods relevant for ON and OFF
power limits.
Fig. 3-21: Measurement periods ON/OFF power
General Description
深圳德标仪器
135-1095-0799