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Could we diable Link Layer ACKs in nRF Connect SDK?

EthanJia

Hi there

The project that I am focusing on was really time-critical, so I'm wondering whether we could disable Link Layer ACKs in nRF Connect SDK (i.e. Zephyr)? If not, is there any way to customize Zephyr to disable the LL ACK?

I have posted a question just before (previous question), in which I was informed that LL ACK could not be diabled in SoftDevice. Since I am new here and accidentally closed the previous ticket, I posted a new one here to ask this question. Really sorry for any inconvenience and appreciate your help.

Best regards :-)

Ethan

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  • +1

    Hi,

    Disabling LL ACKs in NCS is not possible, because it would be against the Bluetooth specification.
    If throughput is your main concern, then in the ATT_MTU throughput application, you can change certain parameters so that you can increase the throughput.
    However, if the main concern of your project is that it is time-critical, then you can take a look at the Bluetooth Low Latency Packet Mode (LLPM) sample. LLPM is intended to be used when the application's interface response time is critical for the user.

    Best regards,
    Dejan

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  • +1

    Hi,

    Disabling LL ACKs in NCS is not possible, because it would be against the Bluetooth specification.
    If throughput is your main concern, then in the ATT_MTU throughput application, you can change certain parameters so that you can increase the throughput.
    However, if the main concern of your project is that it is time-critical, then you can take a look at the Bluetooth Low Latency Packet Mode (LLPM) sample. LLPM is intended to be used when the application's interface response time is critical for the user.

    Best regards,
    Dejan

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