2ms window in SRS mode A5 - C5



Are there plans to allow a 2ms window size when running service between an A5 and C5 in SRS mode?


Hi, I think yes, but waiting like rain in the desert :sweat_smile:

Waiting for timeline.



I am still wondering about this over 6 months later it seems, with no official reply.

Thank you.


I am not sure we will ever see anything besides 8ms. Even though we would probably use lower window sizes.

The larger window size allows for more total aggregate bandwidth then smaller window sizes, but the increased latency is something I dislike. 20-30 ms for many clients especially during heavy utilization. That said, the vast majority of people in this industry prefer the greater bandwidth over lower latency (just look at the Ubiquiti Airmax forums and you will see almost everyone is on 8ms 67/33 or 75/25) And there are very few applications that are effected by a consistent 20-30 ms. VoIP can handle it, Streaming doesn’t care, web browsing cares even less, gamers are few and far between and often don’t know better.

I think what we really want is to adjust our window portions to 67/33 or even 75/25. I think we have a lot of airtime lost being stuck at 50/50.


Very interesting, but like always I prefer to switch the right setup on each situation. So if I have the option to choose another windows time is better than a fixed one.


While I’m not sure about the timing windows, I do know asymmetric traffic split is coming soon. I will try and get more info about additional timing windows.


Our product guys have tested with lower TDMA windows, but found it didn’t really provide any improvements. There are no current plans to include 2 or 4ms timing windows to PTMP.

VoIP via A5/C5 SRS vs WiFi mode