BLE Long Range Communication with Mobile Phones

[Bartosz22]

I have a question: Is it possible to use BLE Long Range mode (Coded PHY) in the NRF52840 with mobile phones? If not, is there a solution to use it in parallel with normal mode, so I can use BLE Long Range to communicate with some devices while still connecting to a mobile phone?

[Priyanka]

Hi Bartosz,

It is possible to use the BLE Long Range (Coded PH) in the nRF52840 with mobile phones, but the mobile phone should also support long range. If not, the mobile phone cannot search for devices that support/use the long range function.

Please take a look at this discussion, which may be of help. :)

Regards,

Priyanka

[Bartosz22]

Thanks for quick reply, but how about communication efficiency when for example for the primary phy I will choose 1MBS and secondary coded phy ? What will be the impact on the communication ? 

[Priyanka]

You can take a look at this ticket where a colleague of mine mentions that using Coded PHY mode will use the same 1Mbps modulation to send data, just using more redundancy bit for error correction to achieve longer range.

i.e. basically there is an increased power consumption and a compromise with throughput too.

-Priyanka

[Bartosz22]

I have one more question is it possible to use 1M on primary phy and Coded PHY on secondary phy in advertising mode ? Cause in latest zephyr I saw that when configuring advertising mode and selecting Coded PHY it will be selected for both primary and secondary phy.