Hello, On Monday 29 November 2010 16:46:43 ext Sjur BRENDELAND, you wrote: > This raises some questions about the handling of > ConnectionContexts. > > When a terminal attach to LTE network it would > normally do an implicit context activation request > associated to attach request (+CGATT=1).
Yeah. So the ConnectionManager cannot be 'Powered' off in LTE. > When the context activation is completed this will > result in an event notifying about the activated PDN > connection according to > 27.007 10.1.19 Packet Domain event reporting +CGEREP. > > +CGEV: ME PDN ACT <cid> > > At this point we have a "connection context" in the modem. > > The question is then, how should we model this in oFono? > Should we assume/require that a Connection Context > already is created by ConnMan and pre-exists in > oFono (possibly with a flag indicating that this > represents the initial PDN, or perhaps just taking > the "internet" ConnectionContext)? The modem driver ought to know what the default PDN is, and match it to the correct oFono primary context. no? > Or should oFono automatically create a Connection Context? > > Furthermore, should oFono automatically proceed and > set Active=true, bind the connection to a network interface > and set network interface in state UP, Definitely not. This would interfere with any other existing IP connection, say WiFi. > or should the ConnectionContext initially set Active=false, > waiting for ConnMan to activate it? This assumes that the default PDN would be the Internet connection. For data- only LTE, this might work. But wouldn't this fail miserably for networks with separate PDN for IMS and Internet? -- Rémi Denis-Courmont Nokia Devices R&D, Maemo Software, Helsinki _______________________________________________ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
