LTE Sensor Gateway sample app

RE: LTE Sensor Gateway sample app

ERIK — Mon, 27 May 2019 18:25:13 GMT

In another ticket, someone contradicts the statement that the LTE Sensor Gateway app does nothing for coexistence. They say it uses the COEX0 input to the nRF91, where the nRF52 signals that the BT transmitter is active.

https://devzone.nordicsemi.com/f/nordic-q-a/47466/nrf9160-lte-modem-coexistence-interface

Erik

RE: LTE Sensor Gateway sample app

ERIK — Sat, 18 May 2019 18:29:59 GMT

I have started a new thread on the LTE modem coexistence interface here:

https://devzone.nordicsemi.com/f/nordic-q-a/47466/nrf9160-lte-modem-coexistence-interface

RE: LTE Sensor Gateway sample app

ERIK — Sat, 18 May 2019 18:03:00 GMT

Correction: LTE Modem coesistence interface, not BLE...

Thanks,

Erik

RE: LTE Sensor Gateway sample app

ERIK — Thu, 16 May 2019 02:12:39 GMT

Can you please provide more of a description of the BLE Coexistence interface than is in the spec?

Is it handled by modem firmware?

How is the COEX0 pin handled in the nRF91?

Does the interface have an enable/disable?

Please explain use of the COEX1 pin.

Can you provide an example or description of a design that uses the interface?

Thank you,

Erik

RE: LTE Sensor Gateway sample app

ERIK — Mon, 13 May 2019 19:31:51 GMT

Do you have any samples or can give any examples how the coexistence interface is used?

RE: LTE Sensor Gateway sample app

tesc — Mon, 06 May 2019 13:44:03 GMT

Hi,

The LTE Sensor Gateway sample does nothing for coexistence, which means you may get the occasional packet loss. However it has minimal impact due to so little time spent in TX, leading to very few collisions.

On the LTE side there is the LTE modem coexistence interface, but we do not offer any corresponding software for the BLE side yet.

You can also improve coexistence in hardware, e.g. by adding filters to the RF lines.

Regards,
Terje

RE: LTE Sensor Gateway sample app

ERIK — Sat, 04 May 2019 20:58:30 GMT

Maybe a better way to frame my final question would be to ask what could you suggest for a design to coordinate BLE/LTE where the entire BLE stack is implemented on one MCU and LTE on another.