On Tue, Jun 24, 2014 at 9:58 PM, Dmitry Shmidt <dimitr...@google.com> wrote: > On Tue, Jun 24, 2014 at 1:45 AM, Krishna Chaitanya > <chaitanya.m...@gmail.com> wrote: >> On Tue, Jun 24, 2014 at 12:03 AM, Krishna Chaitanya >> <chaitanya.m...@gmail.com> wrote: >>> >>> >>> On Jun 23, 2014 10:48 PM, "Dmitry Shmidt" <dimitr...@google.com> wrote: >>> > >>> > Hi, >>> > >>> > Indeed 3 * HZ was done when scan took less than a second on BG-band. >>> > Now it is slightly wrong. >>> > However, 30 sec is also not good for mobile device - it may try to >>> > connect to AP that is not in range >>> > anymore. >>> > >>> > However, with A-band and DFS channels 3 sec are not good anymore. >>> > So my question is what time (5, 7, 10 or whatever) will satisfy your case? >>> >>> Well, in a typical 5GHz band starting from 36-165. Maximum no of DFS >>> channels can be 16, so 300ms * 16= 4.8s, adding some cushion 6/8s should be >>> good enough. >>> >>> I will try setting these values and test our scenario (it worked well with >>> 30) and update tomorrow. >>> >>> Any other guys working on 6/60 GHz bands, any comments? >> >> My colleague also pointed out that in case of connected scan's we >> might need more time that usual because we keep coming >> back to home channel. So my best guess would be 15, which should >> suffice all cases i can think? > > Our scan calculation takes from 3.5 to 4.5 sec in connected state - > with home channel > return. 15 sec cache means that "wrong" AP can be seen in scan results > for 4 consecutive > scans. It is critical for mobile device user experience. > So let's do 7 sec. Please check if it is Ok with your scenario. If not > - it is kernel that you > can change locally.
Hmm...4.5 secs is ok for active scan but for passive scan we need more time. Anyways 7 is also fine for us, it works. I will leave the decision to you :-). -- -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel --- You received this message because you are subscribed to the Google Groups "Android Linux Kernel Development" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-kernel+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
