LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
137
User Manual 1173.9628.02 ─ 16
When the OCNG is enabled it uses all not allocated Resource Blocks (RB) of the cell
bandwidth, so that the full cell bandwidth is used. Example: if for a bandwidth of 10
MHz only 16 RBs are used by the RMC, the remaining 34 RBs are used by the OCNG.
The power level of the OCNG is chosen automatically so that the displayed "Full Cell
BW Power" is reached. Thus the overall DL power is constant in each transmission
time interval.
Remote command:
PDSCH
These parameters define the power level of the Physical Downlink Shared Channel
(PDSCH).
According to 3GPP TS 36.213 the power level of a PDSCH resource element relative
to the RS EPRE is denoted by:
●
ρ
A
(rhoA) if no RS resource elements are transmitted simultaneously on other sub-
carriers
●
ρ
B
(rhoB) if RS resource elements are transmitted simultaneously on other subcar-
riers
The power offset P
A
and the power ratio index P
B
are related to these ratios as follows:
●
P
A
= ρ
A
●
P
B
= 0, 1, 2, 3 corresponds to ρ
B
/ρ
A
=
–
1, 4/5, 3/5, 2/5 for single TX antenna configurations;
–
5/4, 1, 3/4, 1/2 for multiple TX antenna configurations.
The displayed ratios "rhoA" and "rhoB" are calculated from the parameters "PA" and
"PB".
Remote command:
AWGN
Total level of the Additional White Gaussian Noise (AWGN) interferer in dBm/15 kHz
(the spectral density integrated across one subcarrier). If enabled, the AWGN signal is
added to the DL LTE signal for the entire cell bandwidth.
For fading scenarios this parameter is disabled, so that AWGN cannot be added by the
signaling unit. Instead AWGN can be added by the fader (external or internal).
Option R&S CMW-KS510 required.
Remote command:
GUI Reference
深圳德标仪器
135-1095-0799
