This change allows us to disable the LOG_I messages to reduce
overhead.
Removed LOG_VAR macro because it was used in only one place, and
a better solution is to simply use `__attribute__((unused))`.
Limitation: this fix only works if there is only one eNB,
because we force module_id = 0 in the function deliver_sdu where
(as the code is today) we have no way to know which module_id is
concerned. More generally, the rlc v2 does not work with more than
1 eNB.
This commit introduces an alternative RLC implementation
based on 36.322 version 8. AM and UM done, TM not done.
See openair2/LAYER2/rlc_v2/TODO for missing parts.
UE_list_t is now used as a separate list. It can be e.g. used in the
scheduler to mark groups of users. The original UE_list_t is renamed to
UE_info_t to reflect that it is a container for information about UEs.
Seems like the UEs in the CI don't like when asked to report NR UE
capabilities. So let's first ask for eutra capabilities and then
dig into them to check for en-dc support and only then ask for
NR capabilities. We chose to ask for NR capabilities after receiving
RRCConnectionReconfigurationComplete. That may not be the best thing
to do.
Today, we do nothing with those capabilities. We could completely skip
asking them to the UE, but since the code is there and since it may be
useful in the future, let's do it. Hopefully, it should not hurt too much.
An NR-capable UE will transmit some NR measurements.
Once received, the whole process on nr-cell addition is started.
It will fail quickly.
Many things are still missing.
What is not handled properly with this commit:
- in x2ap_eNB_handle_sgNB_add_req we hardcode the gNB ID
- nr triggering is done if we receive a measurement but this measurement is
not analyzed at all
- no timers (T_dc_overall, T_dc_prep) and as is the code fails and then the
next triggering after UE reconnection will not work (x2 ID are not well
handled here and there in the code)
Note also that the gNB part has not been looked at all for this commit.
This is work in progress...
- send RRC Connection Reconfiguration with dummy ENDC data by doing:
telnet localhost 9001
and press enter when the ENDC UE is connected to the eNB to send it
-On the fligh MBMS recofiguration for MBSFN, sib13,sib2 and MCCH enabled through M2 interface (MCE)
-RRC NAS update for MBMS TUN interfaces configuration
-UE RRC modified to handle dynamic SIB2 (MBSFN Subframe Config Lists), SIB13 (MCCH) reconfigurations (TO CAREFULLY BE CHECKED)
ACKNOWLEDGEMENT:
1. This commit was developed at Vicomtech (https://www.vicomtech.org) under UE project CDN-X-ALL: "CDN edge-cloud computing for efficient cache and reliable streaming aCROSS Aggregated unicast-multicast LinkS"
2. Project funded by Fed4FIRE+ OC5 (https://www.fed4fire.eu)
Signed-off-by: Javier Morgade <javier.morgade@ieee.org>
Michael Cook