Target Wake Time (TWT) service period gradually increases

RE: Target Wake Time (TWT) service period gradually increases

Amanda Hsieh — Fri, 11 Aug 2023 13:39:40 GMT

Hi Alvin,

We don't have any documentation for this issue. This is more of the solution to address clock drift due to the lack of synchronization with AP in TWT mode.

-Amanda H.

RE: Target Wake Time (TWT) service period gradually increases

ablee — Fri, 11 Aug 2023 00:17:29 GMT

Alright, can you point me towards some material where I can read up on the early-wakeup and late-sleep techniques and learn exactly how and why it works? I can't seem to find much about it.

Thanks for the help,

Alvin

RE: Target Wake Time (TWT) service period gradually increases

Amanda Hsieh — Thu, 10 Aug 2023 14:46:07 GMT

Hi,

These early-wakeup and late-sleep are not enhancements, and these are essential to wakeup at the exact time AP sends triggers/frames, so, we cannot minimize these intervals without impacting data transfer.

Regards,
Amanda H.

RE: Target Wake Time (TWT) service period gradually increases

ablee — Wed, 09 Aug 2023 21:45:08 GMT

Hi Amanda,

Is it possible to disable the early wake-up and late sleep techniques? I'm trying to optimize the power save as much as possible, and having the wake duration increase every wake-up seems inefficient to me.

Thanks,

Alvin

RE: Target Wake Time (TWT) service period gradually increases

Amanda Hsieh — Tue, 01 Aug 2023 12:57:35 GMT

Hi,

Early wake-up and late sleep techniques are implemented to compensate for PPM. The first wake-up after TWT is configured, the wake duration will be the same as configured. For each consequent wake-up, the wake duration will increase. After 5 minutes the device will resynchronize with the AP, and the next wake duration will go back to what it was in the beginning, before it will start increasing again. This is repeated, with new resynchronization every 5 minutes.

Regards,
Amanda H.