BLE5.0 Range Settings

RE: BLE5.0 Range Settings

Einar Thorsrud — Thu, 13 Aug 2020 08:45:42 GMT

Hi,

I do not have a HUAWEI P40 PRO so I cannot verify, but are you confident it supports establishing the connection on Coded PHY? Most phones (even new high-end models) only support establishing a connection on 1 MBps, and then changing to coded PHY.

The difference between using 1M PHY as primary instead of Coded is that in this case the 1M phy is used to establish connections, and this is also used to point to the secondary phy (coded, in this case). This approach is the most compatible. It has the downside that 1 M advertisement packets must be received, so it reduces the range before the connection can be established.

RE: BLE5.0 Range Settings

zcmm — Wed, 12 Aug 2020 01:01:32 GMT

hi，

Yes，I am sure the phone (HUAWEI P40 PRO)supports scanning and establishing a connection using coded PHY.

Does this second setting make any difference to the range of distance?

RE: BLE5.0 Range Settings

Einar Thorsrud — Tue, 11 Aug 2020 12:15:56 GMT

Hi,

Both configurations are valid. In the first configuration you are advertising on the 1 M PHY (BLE_GAP_PHY_1MBPS) and in the second you are advertising with coded PHY (BLE_GAP_PHY_CODED). Which central device are you testing with? Are you sure it supports scanning and establishing a connection using coded PHY?