Viavi CellAdvisor 5G, User Manual

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Using NSA Signal Analyzer
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P-SS SNR (Primary Synchronization Signal
–
Signal to Noise Ratio)
— ratio of signal power to the noise power through
the primary sync signals
▪
S-SS SINR (Secondary Synchronization Signal
–
Signal to Interference plus Noise Ratio)
— linear average over the
power contribution (in Watts) of the resource elements carrying secondary synchronization signals divided by the linear
average of the noise and interference power contribution (in Watts) over the resource elements carrying secondary
synchronization signals within the considered measurement frequency bandwidth
▪
S-SS RSSI (Secondary Synchronization Signal
–
Received Signal Strength Indicator)
— linear average of the total
received power (in Watts) observed only in secondary synchronization signal
▪
P-SS RSRP (Primary Synchronization Signal
– Reference Signal Received Power) — average power measurement
through all the primary sync signals
▪
S-SS RSRP (Synchronized Signal
– Reference Signal Received Power) — linear average over the power contributions
(in Watts) of the resource elements which carry secondary synchronization signals
Setting measure setup
The setup menus for NSA analyzer are available in the screen with two categories: general setting and carrier setting. You can set
up to 8 carriers for each NR and LTE simultaneously.
General setting
1 Tap the Setup ( ) icon > Configuration on the side bar.
2 Tap General Setting on the screen.
3 To set the reference level, tap the number under NR or LTE and input the reference level using the on-screen keyboard.
4 Tap to switch the Sweep Speed between Fast and Normal .
a Fast : measuring PCI, RSRP, RSRQ, P-SS SNR, S-SS SINR, S-SS RSSI, P-SS Power, S-SS Power for one signal with
the strongest RSRP for LTE carrier/ measuring PCI, SSB Index, S-SS RSRP, P-SS RSRP, P-SS SNR, S-SS SINR, S-SS
RSRQ for one signal with the strongest S-SS RSRP for NR carrier.
b Normal : measuring PCI, RSRP, RSRQ, P-SS SNR, S-SS SINR, S-SS RSSI, P-SS Power, S-SS Power for six signals
with top-down order based on the strongest RSRP signal for LTE carrier/ measuring PCI, SSB Index, S-SS RSRP, P-SS
RSRP, P-SS SNR, S-SS SINR, S-SS RSRQ for eight signals with top-down order based on the strongest S-SS RSRP
signal for NR carrier.
5 Tap Trigger to set Internal , External or GPS as required.
a Internal : when starting a signal processing using the internal reference clock and creating a trigger.
b External : when starting a signal processing based on the external input trigger
c GPS : When synchronizing the signal processing via the GPS receiver.
Carrier setting
1 Tap the number to switch the carrier on or off for NR or LTE in the Carrier Configuration box. You can select up to 8 carriers.
2 If you select NR, do the following steps:
a Tap the Center Frequency box and input the value using the on-screen keyboard.
b Tap the Channel Standard box and choose one from the pop-up window and tap the Apply button.
If the MIMO is set to 2x2, the antenna ports 2 and 3 are disabled.
c Tap the Channel Number box and input the value using the on-screen keyboard.
d Tap the External Offset box and input the value using the on-screen keyboard and tap to switch the external offset to On
(green) or Off (gray) as desired.
e Tap the Attenuation box and input the value using the on-screen keyboard if you want to set it manually ( Manual ). Or tap
it to set Auto .
f Tap to switch the Preamp box 1 , 2 , DNC , and Auto to On (green) or Off (gray).
g Tap to switch the PCI ( Physical Cell ID ) box to Manual (number) or Auto and input a value in the number box from 0 to
1007 using the on-screen keyboard.