GPy NB-IoT connectivity with AMARI LTE 100

[ialkhouri]

Hi All,

Can i start connection with this NW without a SIM card?
Is there a way for the GPy board to start the PRACH procedure with no SIM inserted?

Would a dummy SIM card work in this case?

Thanks...

[jmarcelino]

Hi @ialkhouri

You do need a SIM card of some sort (where you know the keys). Internally we use Anritsu MT8820C compatible test SIM cards.

[ialkhouri]

Thanks for you response.

Does Pycom chips (GPy to be specific) support eSIM (embedded SIMs)? If yes, what are they?, If No, is it in pycom plans to support such a thing?

[jmarcelino]

@ialkhouri
Yes of course we support embedded SIMs (eUICC) as they are compatible with the electrical specifications of their non embedded counterparts (we use the industry standard 1.8V level signalling)

[ialkhouri]

Is there a documentation on how to implement eUICC in GPy? Or which one is a best fit to my application (all i need is a soft SIM where i can access the ki value and the IMSI)?

[jmarcelino]

Hi @ialkhouri

Please check our modem AT command manual at https://docs.pycom.io/chapter/datasheets/downloads/Monarch_4G-EZ_LR5110_ATCommands_ReferenceManual_Rev3_NOCONFIDENTIAL.pdf

You should find the information you need in the USIM Commands section. Unfortunately I cannot go into more details due to Sequans NDAs.

[ialkhouri]

I saw your updated NB-IoT section in the documentation and would like to clarify one thing.

Does below mean that an NB-IoT connection between GPy and my AMRI LTE 100 is not possible as of this moment?

Current NB-IoT limitations
At the moment the NB-IoT firmware supplied by Sequans only support Ericsson base stations configured for In-Band mode. Standalone and guard-band modes will be supported in a later release. Support for Huawei base stations is also limited and only lab testing with Huawei eNodeB is recommended at the moment. Full support for Huawei is planned for early Q2 2018.