EM 9191 NSSAI setting by AT+CGDCONT Command Never Works

IoT Modules MC/EM Series
1

Hi community,

I am doing 5g network slicing research with Serria EM 9191 5G module and USRP + OAI gNB & 5gCN.

However, when I try to set NSSAI in PDP context by AT+CGDCONT command, it always output ERROR :

at+cgdcont?
+CGDCONT: 1,"IP","oai","0.0.0.0",0,0,0,0,,,,,,,,,"",,,,0

OK
at+cgdcont=1,"IP","oai","0.0.0.0",0,0,0,0,,,,,,,,,"01.000001",,,,0
ERROR

I have already set the default configured NSSAI by AT+C5GNSSAI, but it does not help solve the above ERROR.

at+C5GNSSAIRDP=1
+C5GNSSAIRDP: 4,"01.000001"

With the above error, I can still use at+cgact=1,1 to activate that PDP context and establish PDU session. However, I cannot actively assign S-NSSAI info in each PDU session, which is the standard procedure of 5G NR.

Could anyone give me some hints?

Thanks

2

Hi @cheng_hai
I have found a document related to the problem you are talking about in this topic, but it is an internal document.
So I think it would be better in this case please email tech support: support@sierrawireless.com for further support.

Thanks,

3

Hi community,

Following an example in Quectel network slice user guide, I find the correct at command to set s-nssai:

at+cgdcont=2,"IP","oai2",,,,,,,,,,,,,,1,"01.000002",

Then, you could check the modified pdp by:

at+cgdcont?
+CGDCONT: 1,"IP","oai","0.0.0.0",0,0,0,0,,,,,,,,,"",,,,0
+CGDCONT: 2,"IP","oai2_EMBB000002","0.0.0.0",0,0,0,0,,,,,,,,1,"01.000002",,,,0

Best,