Is SCAN_RSP notified only after ADV_SCAN_IND?

[loquat]

Target is nrf52832+SoftDeviceS132

When run ActiveScan,

Is SCAN_RSP advertise_report notified only after ADV_SCAN_IND advertise_report?

If I receive only the SCAN_RSP of the SCAN_REQ performed by another device, will it be notified?

[loquat]

OK Thanks.

And,  once more.

ADV_SCAN_IND Message Sequence Charts,

ADV_REPORT is notified only once.
However, in reality, ADV_REPORT is notified twice (ADV_SCAN_IND, SCAN_RSP). I think the chart is wrong, please tell me the correct time chart.

Is ADV_REPORT (ADV_SCAN_IND) notified before or after receiving the SCAN_RSP?

[Susheel Nuguru]

Advertiser sends SCAN_RSP only if it receives a SCAN_REQ from the scanner. The scanner does not send SCAN_REQ if it is not doing an active scanning and hence the top layer of the MSC only shows passive scanning, where the scanner does not send the scan request and the advertiser does not send the scan response.

The Variant #1 of the chart shows the active scanning where the scanner sends the SCAN_REQ and only after receiving this packet the advertiser will send the SCAN_RSP.

The chart seems correct.

[loquat]

In the figure below, which is correct, the red case or the green case?

[Susheel Nuguru]

None of them is correct. 

1. The scanner will only send a scan_request packet (SCAN_REQ) to the previously received advertising packet(ADV_IND)
2. If you restarted the scanner during the scan interval where it sent the scan_request, then the new changes will be affective only after the scan interval is complete. That is after it got the scan response from the advertiser from the settings with which SCAN_REQ was sent.

[loquat]

Does it mean that the app will not receive ADV_REPORT (SCAN_RSP) if the app cannot set a new buffer by scan_start () between the time the app receives ADV_REPORT (ADV_SCAN_IND) and the time SoftDevice receives SCAN_RSP?