Channel Sounding ranging algorithm

[loquat]

Please tell me about the Channel Sounding ranging algorithms.
The Bluetooth specification does not define the specific ranging algorithms used; instead, individual companies (SoC manufacturers) provide their own proprietary algorithms.
I have been testing Nordic's ranging algorithm (CS_DE), but the results have not been very satisfactory.
Other companies (such as NXP and Silicon Labs) offer or support high-precision ranging algorithms.
Could you please explain the future outlook for Nordic's ranging algorithms?

[Einar Thorsrud]

Hi,

Nordic does not currently provide more advanced algorithms, but there are 3rd party algorithms available (for instance from Metirionic).

[loquat]

Thanks.

I see. So, additional expenditure is required to compete with products from other companies.

By the way, the CS_DE library is currently experimental; will it become a standard release in the future? Can the CS_DE library be used in a production product?

We compared it with the implementation using the NDT (Nordic Distance Toolbox) on the nRF52804, but the accuracy is lower than that of the NDT.

 

[Einar Thorsrud]

Hi,

The CS_DE library is currently experimental, yes. I cannot comment on when or if that will change. Please contact sales if you need details about the potential changes or additions to the SDK, or any other roadmap questions.

Generally though you can use experimental features in production, but that is at your own risk. Experimental features can be expected to have breaking API changes or be removed in a future release.