Rohde & Schwarz R&S CMW-KN5 Series, User Manual

Page: 22 / 107

General Description
R&S
®
CMW-KN5xx
22 User Manual 1176.7690.02 ─ 05
Fig. 3-11: ACLR limit settings for 1.4 MHz channel bandwidth
The ACLR is defined as mean power in the assigned E-UTRA channel divided by the
mean power in an adjacent channel. It shall be greater than the relative limit.
The mean power in an adjacent channel shall be smaller than the absolute limit. The
absolute limit is defined in dBm per MHz bandwidth of the adjacent channel.
According to 3GPP the limits shall be checked for first and second adjacent channels.
The relevant adjacent channel types depend on the duplex mode and the channel
bandwidth as listed in the following table.
Table 3-5: Relevant adjacent channel types, depending on duplex mode and E-UTRA channel BW
E-UTRA UTRA 1.28 MHz UTRA 3.84 MHz UTRA 7.68 MHz
FDD, any channel BW X X
TDD 1.4 and 3 MHz X X
TDD 5, 10, 15, 20 MHz X X X X
The following table provides an overview of the relative and absolute limit values
defined by 3GPP. The default values correspond to the requirements for a home BS.
Refer to 3GPP TS 36.141 V10.6.0, section... Relative Limit Absolute Limit
6.6.2 Adjacent Channel Leakage power Ratio 44.2 dB home BS -50 dBm/MHz
local area BS -32 dBm/MHz
wide area BS (Cat A) -13 dBm/MHz
wide area BS (Cat B) -15 dBm/MHz
3.8 Measurement Results
The results of the "LTE eNodeB Multi Evaluation" measurement are displayed in sev-
eral different views. Use the "Display" parameters to select the views and to change
the appearance and contents of the views. The views are described in the following
sections.
● Overview ................................................................................................................. 23
● Detailed Views: EVM, Magnitude Error, Phase Error ..............................................24
● Detailed Views: OFDM Symbol Power ....................................................................25
● Detailed Views: Spectrum Flatness ........................................................................ 26
● Detailed Views: Spectrum Emission Mask ..............................................................27
● Detailed Views: Spectrum ACLR ............................................................................ 29
● Detailed Views: I/Q Constellation Diagram ............................................................. 30
● Detailed Views: TX Measurement ...........................................................................31
Measurement Results
深圳德标仪器
135-1095-0799