Powersave & Wifi

---

Dear all,

I'm wondering about Wifi telephony on the QTEK 9100.

It works fairly well with various software soutions. However, the phone has to stay "fully on" (except backlight) in order for th Wifi connection to remain up. This alters battery life severely.

I'm wondering if it is possible to have the Wifi connection stay up during power save mode, with some kind of "Wake on WLAN" event that would wake up the phone so that IP phone software can process incoming data.

Some of it already happens for GSM. I'm wondering whether the GSM part is "fully independant" (like on a different processor), or if it's handled by the main processor. In the later case, it may be possible to achieve something similar with Wifi telephony.

Thanks in advance for any hint.

so there is no way having WIFI enabled and lettign the pda go to sleep mode / power save mode ??

is there an APP that leaves power save mode off if the WIFI is enabled, so only the screen goes of light, and the pda stays on ?

P.

Re: Powersave & Wifi

---

Originally Posted by nbougues

Some of it already happens for GSM. I'm wondering whether the GSM part is "fully independant" (like on a different processor), or if it's handled by the main processor. In the later case, it may be possible to achieve something similar with Wifi telephony.

It's fully independent. It's very cleverly written; this is why, for example, listening to incoming IMAP IDLE or Push Mail callbacks don't require the CPU at all.

yes i got that part on my own, thats why the GPRS connection stays on... but still there should be a registry somewhere to prevent device to go to sleep if WIFI conneciton is made..

tried all the powermode stuff in regisrty, nothn worked... out of clue...

Originally Posted by papizdono

yes i got that part on my own, thats why the GPRS connection stays on... but still there should be a registry somewhere to prevent device to go to sleep if WIFI conneciton is made..

tried all the powermode stuff in regisrty, nothn worked... out of clue...

I don't think you can do this - the WI-Fi module is completely independent of the radio module. Furthermore, you'll constantly need a LOT of power to keep the Wi-Fi connection up, as opposed to GSM/GPRS, where handshaking is only done during roaming to another cell and/or every (AFAIK) 10-20 minutes. Otherwise, the PDA doesn't trasmit anything, a sopposed to the Wi-Fi case.

That is, it seem sit's impossible to do any long-term Wi-Fi "listening" in the current Wi-Fi / PPC architecture.

Originally Posted by papizdono

yes i got that part on my own, thats why the GPRS connection stays on... but still there should be a registry somewhere to prevent device to go to sleep if WIFI conneciton is made..

tried all the powermode stuff in regisrty, nothn worked... out of clue...

I don't think you can do this - the WI-Fi module is completely independent of the radio module. Furthermore, you'll constantly need a LOT of power to keep the Wi-Fi connection up, as opposed to GSM/GPRS, where handshaking is only done during roaming to another cell and/or every (AFAIK) 10-20 minutes. Otherwise, the PDA doesn't trasmit anything, a sopposed to the Wi-Fi case.

That is, it seem sit's impossible to do any long-term Wi-Fi "listening" in the current Wi-Fi / PPC architecture.

all i need is a tool that disables POWERSAVE mode if WIFI connections is made, or even if WIFI is enabled...

that would do all the work....

anyone ?

i think the closest thing is in phm powertoys (http://www.phm.lu/products/PocketPC/PowerToys/)
the screensaver option... what it does is turn off your touchscreen like in "sleep" mode but if u use this you might want to disable the power save option cause while u have screensaver on its still gonna count down n shut off ur ppc hope this helps!