Setting TX power for multiple advertising sets

RE: Setting TX power for multiple advertising sets

Susheel Nuguru — Sun, 12 Feb 2023 16:54:40 GMT

No problem, I hope it works.

RE: Setting TX power for multiple advertising sets

loquat — Fri, 10 Feb 2023 11:46:34 GMT

I try it. thank you.

RE: Setting TX power for multiple advertising sets

Susheel Nuguru — Fri, 10 Feb 2023 11:19:20 GMT

Can you double check (print the value) if the handle value for bt_le_ext_adv.handle and iBeacon adv handle are different.

Our experts think it should be, in which case you can set it as you suggested.

RE: Setting TX power for multiple advertising sets

loquat — Thu, 09 Feb 2023 15:17:49 GMT

Really?

Should I set bt_le_ext_adv.handle to bt_hci_cp_vs_write_tx_power_level.handle?

RE: Setting TX power for multiple advertising sets

Susheel Nuguru — Thu, 09 Feb 2023 12:27:40 GMT

Setting TX power using the HCI command for each advertising set should be supported already.

You cannot use this for setting different power for primary channel, auxiliary channel, periodic advertising, and BIS events as they belong to same advertising set and hence the same advertising handle.

But you can use this HCI API to set different TX power for legacy (iBeacon) and periodic advertising which are two different advertisings sets, like in your case. Hence this provided API is helpful to what you are requesting.

RE: Setting TX power for multiple advertising sets

loquat — Thu, 09 Feb 2023 12:22:22 GMT

yes.
I know it
Therefore, I would like you to be able to set TxPower for each AdvertiseSet in the future.

RE: Setting TX power for multiple advertising sets

Susheel Nuguru — Thu, 09 Feb 2023 11:24:21 GMT

Syuji,

Have you seen this Vendor specific HCI API?

This API does not allow to set different power for extended and periodic advertising. The periodic advertiser and extended advertiser use the same advertising handle but you can use it on two advertising sets like the one you have iBeacon which uses legacy advertising set and the periodic advertising that uses extended advertising set.

Can you see if that is useful in your case?

RE: Setting TX power for multiple advertising sets

loquat — Wed, 08 Feb 2023 23:07:14 GMT

Please add a function to set TxPower for each AdvertiseSet in the future.

My application sends iBeacon and advertising for connection in parallel, but I want to change only iBeacon's TxPower.
Also, in the future, we would like to send PeriodicAdvertising in parallel.

For this reason, being able to set TxPower per AdvertiseSet is very important.

RE: Setting TX power for multiple advertising sets

Susheel Nuguru — Mon, 23 Jan 2023 08:56:53 GMT

Unfortunately this is not supported. Probably you can switch between two advertising sets so that only one is active at a time, so that the TX power can be set to the advertising role and not constrained to sets.

RE: Setting TX power for multiple advertising sets

Bilal — Fri, 20 Jan 2023 22:05:00 GMT

Susheel Nuguru any updates if you were able to confirm if this is possible?

RE: Setting TX power for multiple advertising sets

Susheel Nuguru — Thu, 22 Dec 2022 16:22:23 GMT

You cannot do that with HCI API as this API does not identify sets, but I am not 100% sure if you can do this GAP api (best guess is that it is not possible).
I will try to check this in the code next week just to confirm this.