[BetterBatteryStats] Rob2222:
What you mean? I think now you start confusion here.

Maybe study this, this, this, this and maybe some more of the blog posts on thius site. Additional information here.

But most important is this document. Here is mentioned ASCR (Autonomous Signalling Connection Release) which is a "fast dormancy" variant which manufacturers implement to switch down fast to IDLE/PCH, don't care if the network supports NCFD, or not.

EDIT: One more source: LINK

After that I observed my home cell in the german E-Plus and Vodafone net a while.

With Fast Dormancy enabled on my S3 (timer 5 seconds from nwk_info database) my phone switches most times from DCH to IDLE (Vodafone) and from DCH to PCH (E-Plus) within around 5 seconds.

Now when disabling Fast Dormancy on the S3, my Vodafone cell here let me stay 10 seconds in DCH, then switching me to FACH for 30 more seconds and then finally to IDLE after each data transfer.

When disabling Fast Domancy on the S3 with the E-Plus card, the E-Plus cell let me stay 10 seconds in DCH and then switches me almost direct with maybe 0.5 seconds FACH to the PCH state.

For my understanding this is network controlled fast dormancy with my E-Plus cell. Even with S3-FD disabled I am after 10 seconds in a low-power state (PCH/IDLE). While this Vodafone cell let me stay for 40 seconds in a high power state (DCH/FACH).

Now I enable S3-FD again and the S3 switches _most times_ back to IDLE (Vodafone) and PCH(E-Plus) after around 5 seconds.

Only "most times" cause the S3-FD implementation requests that switchback only if it knows, that the transfer is complete, which this layer can not know always. Good for testing is dial *#0011#, then switch to Whatsapp and juckt click a contact that the "online" status gets updated and then switch direct back to *#0011#. This are connections where the S3 knows that they are done and it initiates S3-FD then.

One more thing to mention is, that it is cell related, not yet complete carrier related here in germany.

I got reports back in the forums from E-Plus cells, that show the behaviour of my Vodafone home cell and also reports of Vodafone cells here in germany, that show the behaviour of my E-Plus home cell. So it is sure that you have different dormant configurations in different cells even on the same operator at the moment.

So, when being in a cell like my E-Plus home cell, you didn't need S3-FD, cause the cell switches you back to PCH after 10 seconds, withouth request from the phone (S3-FD off).

When in a cell like my Vodafone cell, which let you stay 10s in DCH and then 30s in FACH, you should enable S3-FD, that you did not stay for 40 seconds in high-power states.

The standard configuration from stock samsung on S3 is S3-FD enabled after 5 seconds for all german carriers.

OK, now we have enough information here, that the normal user will be probably confused, but if you say it's wrong, I am in the need to explain it, and yes, its a quite complex subject.

I did not want to say that I can not be wrong, but maybe you should point out why and explain it.

It's not so nice just to say "you post wrong facts" and then just state it the other way without sources/references, too. :eek:

I spent much time studying/learning and testing this cause the much amount of half-truths out here and for now I have no idea where I am wrong?

And, btw, I am willing to learn, too.

BR

Robert