Cellular Network Infrastructure » Radio Access Network » OsmoBTS

there's a variety of tests now in BTS_Tests_LAPDm.ttcn.

They will be enabled in the jenkins builds once https://gerrit.osmocom.org/c/docker-playground/+/14376 is merged.

I implemented a variety of tests in BTS_Tests_LAPDm, with only four tests remaining TBD. Handing over to Hoernchen for completing those.

The existing examples should serve as a template. The 3GPP spec references is written for testing the MS side. You have to mirror all communication, as we want to test the BTS. Please note the C/R bits of LAPDm are inverted per direction. However, if you use the symbolic constants like existing test cases you won't have to worry about that.

The L3 payload doesn't matter at all. So if the spec says "send a MM INFO" or watever, it doesn't matter. This is just so that normal phones will react "reasonable" when executing the test against them. As we don't have any L3 but simply attach to RSL/RLL, we can transmitany arbitrary L3 payload.

Added in https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/14419