nRF9151 Cat-M and Cat-NB peak data rates

[Nathan Boyd]

Is there any documentation on what peak data rates are available on the nRF9151?

While the Cat-M, Cat-NB1 and Cat-NB2 standard max data rates are easily available, I have found several other IoT modems that support e.g. Cat-M, but not at full data rate (e.g. Quectel BG91 supports Cat-M, but only at 375kbps up/down, instead of 588kbps down, 1119kbps up).

I haven't been able to find any reference to supported rates for the nrf9151 apart from some suspect looking AI summaries that have bad references.

As part of evaluation for a product, we will be comparing both maximum data rates supported, as well as real world conditions (as we want to see under what conditions peak data rate is available).

Regards,

Nathan Boyd

[Priyanka]

Hi Nathan,

If you look at the DevAcademy: https://academy.nordicsemi.com/courses/cellular-iot-fundamentals/lessons/lesson-1-cellular-fundamentals/topic/lesson-1-lte-m-and-nb-iot/ 

You can see the following:

Is this what you were looking for?

Regards,

Priyanka

[Nathan Boyd]

Thanks Priyanka,

It would be useful for this performance info to be in the chip datasheet rather than just in the academy training documents.

I have noticed that many IoT modems report different achievable data rates, and the LTE-CatM information I have seen suggests the standard supports higher data rates (e.g. Quectel BG95 and Quectel BG96 both support MTE-CatM, but with different possible data rates, and some summary documents support a maximum of 1mbps, presumably with higher power consumption and more air time).

Is the throughput on the nRF9151 a hardware limit? Or a limit of processing performance?

Regards,

Nathan Boyd.