Quote:
Originally Posted by jnr21
When i'm using data with fast dormancy on (loading web page etc...), signal icon goes H+ and rrc state goes to DCH, but after a short time when data is not used, signal icon goes back to 3G and rrc state goes to PCH, sometimes also FACH shows up.
With that info, can you say is fast dormancy supported by my isp?
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You can check it with BetterBatteryStats!
If there is no endless connection of "secril_fd-interface" under Kernel wakelock, than it works.
With your things I cant say anything about, important is the switching time between T1 (timer one) and T2 (timer two).
Here examples without FD:
Vodafone T1 = 5 secs (DCH => FACH)
Vodafone T2 = 30 secs (FACH => IDLE)
E-Plus T1 = 10 secs (DCH => FACH)
E-Plus T2 = 1-2 secs (FACH => PCH)
... with enabled FD:
Vodafone T1 = 5 secs (DCH => FACH)
Vodafone T2 = 5 secs (FACH => IDLE)
E-Plus T1 = 5 secs (DCH => FACH)
E-Plus T2 = 1-2 secs (FACH => PCH)
And data transferring > 500bites is only possible with DCH, but the device need to come up from IDLE->DCH 2,5sec,
thats a normal delay, so dont wondering.
FACH is more a second standy channel with small transferring of max 500bites data, because its a 32kbit channel in your current network cell,
where all other devices from this cell are in, and wait for orders by Provider or FD, is enabled.
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