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AFH support in BLE stack

Markus H
Prodigy 10 points

Hi,

Is Adaptive Frequency Hopping fully implemented in BLE stack? I made some interference tests using v1.0 stack in master device and captured the packets with Packet Sniffer positioned close to master. I was unable to trigger Channel Update Procedure, when there was high interference on ~10 channels (shown by missing packets from slave in sniffer). Slave latency was set to zero, and I run the test for a few minutes but with no effect.

  • 0
    TI__Genius 17975 points

    AFH is not exactly built into the stack, but rather a master application has the means to update the channel map as needed if there is any known interference source at certain frequencies. Typically, this type of implementation will be done by a dual-mode device such as a mobile phone, which will know what frequencies are in use (e.g. WiFi, mobile wireless) and which are not.

  • 0 in reply to Willis1
    Intellectual 625 points

    Is AFH still not built into the stack after one year? Is there any information or update about this issue?

    Thanks

    Willis1 said:

    AFH is not exactly built into the stack, but rather a master application has the means to update the channel map as needed if there is any known interference source at certain frequencies. Typically, this type of implementation will be done by a dual-mode device such as a mobile phone, which will know what frequencies are in use (e.g. WiFi, mobile wireless) and which are not.

  • 0 in reply to Cagatay Ulusoy
    Intellectual 610 points

    Is there any news about AFH? Will it be implemented in the future releases?