If there are no active bearers, the function previously returned an
empty list. Return NULL if there are no bearers, so it is safe to call
this function even when no bearers are present. We can also pass it
every time to do_RRCReconfiguration(), which will not add an empty list
for DRBs.
Create a single function to activate an SRB. This function derives the
corresponding keys, triggers the setup in PDCP, and marks the SRB as set
up, instead of doing all of this common functionality in individual
steps. Use it at the corresponding places.
- show MAC bytes in one line
- add MCS table idx
- show ulsch errors before ulsch DTX (as in DL)
- show if UE in-sync/out-of-sync
- show CU UE ID next to RNTI to stats
Since we modify the format of the statistics, fix the format in the retx
checkers of the CI.
This commit implements retrieval of 5G-S-TMSI from Parts 1&2, or the
entire 5G-S-TMSI, depending on what the UE sends. Further, if it has
been retrieved, print a log of all constituent parts of it.
The UE-specific variable ng_5G_S_TMSI_Part2 is not needed, as we compute
the full 5G-S-TMSI as soon as we have Part2 (and 1).
The correct forwarding to the core is implemented in the following
commit.
We did not give a cause value, and therefore NGAP's "PDU sessions
failed" encoding failed. Give a cause value in all cases, so that this
cannot happen anymore.
To prevent against this, put an AssertFatal() into the encoder that
stops if an internally sent message does not have a correct cause value
(we can at least select a default).
Print an info message for all failed PDU sessions.
In rrc_gNB_send_NGAP_INITIAL_CONTEXT_SETUP_RESP(): if a PDU session is
already established, don't count it as failed.
If we are in one of these procedures, we basically must be in SA mode,
everything else is illogical. It also does not seem plausible to check
for this, as it is not apparent why only these couple of calls should
not be executed if not in SA. Hence, remove.
This implementation might work, but it simply triggers RRC setup on the new
DU when we might send a RRC reestablishment speeding up the whole
connection setup. For this:
- we should send the F1 UE context setup to the new DU
- we should still do the reestablishment, containing the reestablishment message
The latter should be sent once we received the F1 UE context setup
response. We don't need a new context. send a release to the old DU (and
don't release our own context!!).
We might also send the reestablishment to the UE encapsulated with the
F1 UE context setup response. Need to investigate if this is feasible
(because if the DU rejects [can that happen here?], the UE will still
send reestablishment complete -- what then?).
Also, we would need to send the E1 bearer context modification to the
CU-UP.
Keeping track if AS security is activated. This is important for a later
commit, where we use this to decide if we send a F1 UE Context Setup Req
with security command after receiving the E1 bearer context setup
response. The corresponding AssertFatal() removed in the same commit
implementing PDU session handling in NGAP Initial UE Context Setup.
38.401 Sec 8.1 asks for sending the Initial Context Setup Response after
a reconfiguration happened. Therefore, we can never send this message
directly from the handler in the Initial Context Setup Request
- CU-CP replying to the CU-UP with a Setup Failure message in case of unsuccessfull E1 Setup Request
- message is decoded by the CU-UP, and stops the process
This commit removes nr_rrc_mac_config_req_ue_logicalChannelBearer and handles configuration of logical channel bearers at MAC in nr_rrc_mac_config_req_cg.
This also avoids to configure LCs before resetting them again nr_rrc_mac_config_req_cg().
Robert Schmidt