BLE channel sounding

RE: BLE channel sounding

PaKa — Wed, 29 May 2024 11:18:03 GMT

Note: this is a Nordic Proprietary solution. The Channel Sounding specification is still not ratified by the Bluetooth SIG so we do not support that.

Note that for Channel Sounding the specification does not include the part that actually calculates the distance, it ends with the data needed to perform the calculations is presented to the application. The NDT code refered to above does contain the algorithms so the output is the actual distance.

RE: BLE channel sounding

Sigurd — Wed, 29 May 2024 10:24:36 GMT

Hi!

Amanda is out of office, so I'm replying instead.

You can find an overview over the different methods our DM subsystem uses here:

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.6.1/nrfxlib/nrf_dm/doc/nrf_dm_overview.html

RE: BLE channel sounding

DanisXZ — Sat, 25 May 2024 15:39:40 GMT

Hi Amanda Hsieh ,

Thank you for your reply.

Does the example mentioned by you use channel sounding ble feature ? This is explained here:

https://www.bluetooth.com/blog/bluetooth-channel-sounding-a-step-towards-10-cm-ranging-accuracy-for-secure-access-digital-key-and-proximity-services/

RE: BLE channel sounding

Amanda Hsieh — Mon, 20 May 2024 13:05:55 GMT

Hi,

There is an example of distance measurement using Bluetooth Low Energy (BLE) within the Nordic Connect SDK (NCS). The nRF Distance Measurement with Bluetooth LE discovery demonstrates the functionality of the Distance Measurement (DM) subsystem. It shows how to use DM to measure the distance between devices.

Regards,
Amanda H.