Cellular Network Infrastructure » Core Network (CN) » OsmoHNBGW

in HNBGW_Tests.ttcn, in all UE tests, we simply send an Initial UE message to start off a RUA context.
Instead, we should first do a HNBAP UE REGISTER procedure.

EDIT: HNBAP UE Register is actually optional; so we should test both with and without HNBAP UE procedures in HNBGW_Tests.ttcn

The normal test should do

• HNBAP HNB Register
• HNBAP UE Register
• RUA InitialUE
• RUA IU Release
• HNBAP UE De-Register

We need to clarify whether osmo-hnbgw should reject an initialUE where no HNBAP UE Register was seen. I guess it should.

Currently osmo-hnbgw does not reject on missing UE Register, it simply carries on, but apparently this does not create a ue_context at all. That is a broken internal state, there should be a ue_context entry for each RUA context id.

So one of:

• reject initialUE when HNBAP UE Register was missing (adjust all tests, adjust osmo-hnbgw), OR
• allow initialUE without HNBAP UE Register, but then make sure there is a ue_context entry for the UE and a good RUA context id is chosen.

There should be tests for both missing and present HNBAP UE Register, expecting the correct behavior we define for osmo-hnbgw now.

I presume osmo-hnbgw should always require a HNBAP UE Register.
That needs some work on HNBGW_Tests.ttcn, because so far the ConnHdlr doesn't even have a HNBAP port (I'm adding it now for a different issue), and we don't seem to have templates for UE (De-)Register yet.

Once UE Register is tested, we should also test HNBAP UE De-Register.