RM520N-GL bands aggregation

Technical Subjects
1

my 5G module reply to the AT query this data:

AT+QCAINFO
+QCAINFO: “PCC”,100,100,“LTE BAND 1”,1,201,-82,-10,-52,10
+QCAINFO: “SCC”,1500,50,“LTE BAND 3”,1,201,-78,-14,-54,0,0,-,-
+QCAINFO: “SCC”,2900,50,“LTE BAND 7”,1,20,-87,-8,-69,7,0,-,-
+QCAINFO: “SCC”,3350,100,“LTE BAND 7”,1,20,-85,-14,-62,12,0,-,-
+QCAINFO: “SCC”,1650,100,“LTE BAND 3”,1,201,-78,-15,-54,0,0,-,-

1 question: this mean the module is aggregation LTE bands: 1+3+7 and again 7+3?

On the tower there is also N3, N28, N78 band and I tryed to set those bands with command:
AT+QNWPREFCFG= “nsa_nr5g_band”,3:28:78

Whe I query it gives:
AT+QNWPREFCFG=“ue_capability_band”
+QNWPREFCFG: “gw_band”,0
+QNWPREFCFG: “lte_band”,1:3:7:20:28:38
+QNWPREFCFG: “nsa_nr5g_band”,0
+QNWPREFCFG: “nr5g_band”,0

It means that the module can’t aggregate the N3, N28 andd the N78 bands?
thanks

2

It’s aggregating the serving cell (the primary) with four secondary cells.

Your tower has at least two B3 and B7 cells available to you, and they are included in the one five-cell aggregation.

Within the view of any modem, the channel/EARFCN and PCI combinations must be unique. This is how a modem identifies cells.

Your B3 and B7 cells share their PCIs, while the EARFCNs are different. It matters not to the modem that they happen to be on the same band.

3

Any idea why the module is not aggregating the N3, N28 and N78 bands?