27 May
2016
27 May
'16
8:41 a.m.
Hi Max,
On Thu, May 26, 2016 at 11:31:23AM +0200, Max wrote:
What would be expected behavior for MS in this
scenario?
I'm not entirely sure what the expected behavior is.
Shall it switch to alternative network in hope of
getting promised GPRS?
If it is a PS-only device, this might make sense. Not sure if it is
mandated anywhere.
The problem is if it is a CS + PS device, and if CS registration worked
on the cell, but PS doesn't. In that case I've not seen any phone ever
considering to select a different cell, let aside a different network.
Shall it hang on the currently camped network
providing voice/sms only?
Which spec(s) cover that? What could be decision factors for the MS? SIM
entries, some data in SI, some timeout somewhere, smth else?
Cell (re)selection is traditionally specified in 03.22. Not sure where
it got moved later (when transitioning to post-rel99). Not sure why
23.022 was withdrawn, but there is now 23.122 which has superseeded it.
http://www.etsi.org/deliver/etsi_ts/123100_123199/123122/13.04.00_60/ts_123…
is the link to the latest release. But it's quite complex with 2G/3G/4G
and all the optional features like ProSe, CSG, ...
There's also the 2G-only successor of 03.22: 43.022 at
http://www.etsi.org/deliver/etsi_ts/143000_143099/143022/13.00.00_60/ts_143…
--
- Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)