BLE 1M+Coded PHY connection and scanning

RE: BLE 1M+Coded PHY connection and scanning

sheindel-llt — Wed, 13 Sep 2023 13:48:29 GMT

I tried 80ms interval and 20ms window (scan and connection) but I got the same behavior. I'm continuing to play around with the values to see what difference it might make.

RE: BLE 1M+Coded PHY connection and scanning

sheindel-llt — Tue, 12 Sep 2023 20:50:08 GMT

Thanks for the suggestion, hopefully I will try it out tomorrow. I was not expecting that 40ms scan interval would be too aggressive but it's good to check.

By the way, do you have any insight into how the scan interval works when both 1M and coded PHY are in use? Does it alternate between PHYs, or can it scan on both PHYs at the same time?

RE: BLE 1M+Coded PHY connection and scanning

Amanda Hsieh — Tue, 12 Sep 2023 13:31:49 GMT

Hi,

Your scanning and connection parameters are quite aggressive for such a complex scenario. Could you test again with larger scan and connection intervals, and try to make the scan interval a multiple of the connection interval? For instance, try 80ms scan interval and 20ms con interval with a scan window of 20ms.

-Amanda H.

RE: BLE 1M+Coded PHY connection and scanning

Amanda Hsieh — Mon, 11 Sep 2023 21:31:11 GMT

Hi,

I am looking into this case and will reply later.

Regards,
Amanda H.