As reported by Emad Alizade:
According to "Issue255 256 257 paging reesta release" that has been
merged in develop version, we have a question: In rrc_eNB_free_UE()
function only all ulsch related memory of user has been cleaned, but
I think not only ulsch memory but also dlsch memory must be cleaned.
I tested the latest develop version and with repetition UE attach-detach
procedures we find that the dlsch memory has not been cleaned and after
repeat this sequence (45 times) assertion with cause UE_id!=-1 (no free
or exiting dlsch_context, dci_tools.c: fill_dci_and_dlsch() ) occurred
and no UE will be attached to system.
The fixes in this commit are from Emad Alizade.
This commit fixes issues introduced by the previous commit.
Summary of work:
- cleanup:
- fix LOG_XX to be less verbose
- fix cmake_targets/CMakeLists.txt
- fix oaienv
- remove dead code
- bug fixes:
- in openair1/SCHED/fapi_l1.c we had:
eNB->pdcch_vars[subframe&1].num_dci = number_dci;
should be:
eNB->pdcch_vars[subframe&1].num_dci = 0;
This bug let the PHY send more DCIs than what should have been
sent because num_dci is incremented later on in the code.
This fix may be a problem for fapi mode, to be checked.
- add new T VCD traces
- revert openair1/PHY/TOOLS/file_output.c to 'develop' version
- remove thread_id in logRecord/logRecord_mt
- revert (and adapt) configuration files
- be careful when doing frame++, we need to % 1024
- revert target_rx_power in openair2/LAYER2/MAC/eNB_scheduler_ulsch.c
- NFAPI:
- the open-nFAPI code has been included in the repository. See nfapi/README.
Maybe we should "git clone" the Cisco repository instead. We have to be
careful of availability though.
What has been tested:
- monolithic eNB FDD 5/10MHz with one UE, iperf UDP/TCP uplink/downlink
Anything else may fail to work, especially the FAPI mode, which has not
been tested at all.
It has been chosen to not include the full history of commits
from David. He included a binary version of wireshark, probably
a modified one that understands NFAPI. Wireshark is released under
the GPL license, we cannot include it in the repository. We could
have done a next commit to remove this binary. But then it would
still be present in the history of commits, which may not be allowed.
And it would take space on disk. We could edit the history to remove
wireshark entirely. But this operation is too complicated.
There was also a pcap capture file, which has nothing to do in
the history of commits and would take space on disk. There again,
it's too difficult to edit the history to remove it.
There was a file .gitignore that was also removed.
The original history can be found on David's repository:
https://gitlab.eurecom.fr/daveprice/openairinterface5g/
The branch is: nfapi-ru-rau-split.
A copy of that branch has been included in the internal OAI
repository, for those who have access to it.
The branch is the same. The last commit ID is
9106438239e0bc626ff1fa1d97d911caadd0fbb9.
You can compare the current commit with the commit 9106...
to see what differs.
The current commit has to be considered non-working.
The commit following the current commit will fix problems with
the work in the current commit.
If you use git bisect, don't spend time analyzing the current
commit.
Includes the following updates:
1. oaisim/lte-softmodem in noS1
2. UE fixes for oaisim
3. IF4p5 fixes (doesn't work on develop)
4. UE fixes for DCI handling (corrects problem introduced in develop)
Conflicts:
cmake_targets/CMakeLists.txt
targets/SIMU/USER/oaisim_functions.c
- import RRC ASN.1 defintions from the specifications
(file openair2/RRC/LITE/MESSAGES/asn1c/ASN1_files/RRC-e10.asn)
contrary to rel8/10, all modules have been imported, maybe it's too much
to refine in case of problems
- deal with rel14 in fix_asn1
- all code that was for Rel10 is now for Rel10/Rel14
- some incompatible changes (mostly in naming) were resolved in favor
of rel14, see in openair2/RRC/LITE/defs.h
- unsure about the rlc layer, some arrays have changed (values appended),
I only changed the definition and in tests in the code, I changed
the index limit, maybe it's not enough
Rel14 is the default compilation mode.
RRC does not work very well when one UE goes away and comes
back in some situations.
This commit is an attempt at making things work better.
It is probably not the end of the story.
Modern UEs have very long UE capabilities.
It disrupts realtime behaviour of the modem.
Let's put a simple log message indicating we got the
UE capabilities.
Manually testing with the Samsung Galaxy Note 4 failed,
probably because the phone didn't like to receive SRS
configuration.
Let's send it only if activated.
Raymond Knopp