Nordic Advertiser Extensions - nRF52840 - MESH

[AKV]

Hi

We need clarification about  Nordic Advertiser Extensions (Instaburst).

1. The document (Nordic Advertiser Extensions (Instaburst)) says that the maximum theoretical mesh access layer payload throughput is around 60 kbps. 

Can you explain how did you get 60 kbps and which PHY was used in this calculation?

2. Is it possible to use Coded PHY (S=8) in  Nordic Advertiser Extensions (Instaburst) feature for mesh? And what will be the throughput?

3. Is there any Soft Device versions that support the periodic advertising feature which is part of extended advertising? If yes, is there any example code for that?

Is it possible to integrate the periodic advertisement feature with mesh to get higher throughput?

[Mttrinh]

Hi,

1. It is meantioned in the document you referred to. The PHY that is used is 2Mbit.

2. No, unfortunately Coded PHY is not supported in either Instaburst feature or the Mesh specification. We don't have any tests that use Coded PHY so we don't have such throughput measurement.

3. Unfortunately, we do not have support for periodic advertisement  in our SoftDevices. We do however, have a few ways to perform periodic advertising with other means. There are quite a few posts on that already here on DevZone, you can try check out one of those. 

Like I mentioned in your other post, Bluetooth Mesh specification is based on v4.0 and does not support Bluetooth 5 features.

[AKV]

Hi Mttrinh

Thanks for the reply.

Can you please take a look at this older case to enable the  Mesh with coded PHY for a longer range?

This is a very older post. Why can't we use this method in the latest SDK to use Coded PHY in Mesh architecture?

[Mttrinh]

Hi,

You can use that method to get longer range but it won't comply with the spec meaning you won't be able to qualify your product later on.