The fix added in this commit may not be correct and
should be reviewed by Eurecom. For now we set the
future frame based on the PRACH recevied frame + 1.
Also fixed the copying of RACH ind into UL_INFO global.
RAR is being passed to NR UE.
Also fixed a few bugs in nr-nFAPI:
- Push16->push8 fix in packing of RACH
- Allocating memory for pdu_list and preamble_list in unpack
- Properly indexing through both lists during unpack
- Created new nr_rach handling function
Several other changes in this commit include:
- Setting the number of PDUS in the ul_config
to be zero when we will it (inside of the
get_ul_config() function.)
- We reset the nprach flag to 0 for each slot.
- We return out of the prach scheduler if
mac->ul_config == NULL
- Added error checking for array indexing
- Created a dummy scheduler response function.
- Allocated ul_config_req initially
Also calling the new L1_nsa_prach_procedures()
function after using the nr_ue_scheduler. Added
some error checking in the nr_ue_scheduler. Added
some error checking in the process_nsa_msg in both
the NR and LTE UE
Seems to be working at the moment but
may need to add more info in the rach_ind.
Also, need to verify gNB is getting the
rach_ind and starting RA procedure.
Had to hack the code to schedule the prach.
Need to verify this is ok because ul_config = NULL.
Also had to change logic for calling fill_schedule_response.
However, we are not properly calling the
nr_ue_get_rach() function. The RA is being
properly initialized. In the nr_ue_get_rach()
the pRACH is not scheduled. Tried to add in
the scheduling of this, but it crashes here.
The other changes include revering the
nr_ue_get_rach() changes from previous commit.
Also, changed a few log levels and reverted
a previous change in the NR UE RRC layer that
was incorrect.
Several places where memory ownership was changed
and the original owner was not set to NULL. Also,
the transaction_identifier is now based on the
received dl_dcch_msg in the LTE UE. Still need to
fix the t_id for the NR UE. Also added comments for
RACH procedure in NR UE.
At the moment, the NSA mode worked once, but shows
unpredictable behavior. Other times it does not work.
In this commit I added several LOG_A messages for NSA
mode. Also removed old comments that were added during
development. Lastly, more comments for all the hacks
have been added.
The eNB may only check for RRC_Complete in EPC
mode. Need to look at this further. Updated how
we pass the RRC_Complete msg from NR UE to LTE UE.
Need to still handle transaction_id from dl_dcch_msg
in the LTE UE and trans_id from nr_dl_msg.
However, the NR UE is crashing because it is receiving
a second RRCReconfig message from the LTE UE and it is
having trouble decoding it. Need to understand this.
Also removed several warnings by properly
declaring nr-nFAPI functions and removed
declaration of unused functions. Also, reverted
eNB configuration file changes.
This caused the SCTP descriptor to be reset. This
made issues in the X2 interface between gNB and eNB.
Lots of logs added here. Need to fill NR_UE_Capability_Info
properly.
Now, we are able to fill the UE_Capability_Info that
the LTE UE and eNB are expecting. We then are able to
generate a RRC_DCCH_DATA_COPY_IND to trigger the
processing of the UE_Capability_Info (and sending the
info to the eNB). The info being received at eNB has not
been tested yet.
Also some code clean up.
Also removed the [eNB_index + 1] saving/writing
in the process_MeasObj function. This indexing
was incorrect. Also cleaned up the code, fixed
ssRSRB -> ssbRSRP. Lastly, added assertFatals
around indexing in process_measObj function.
Added check and logs. If we change ind = 1 it
crashes the LTE UE so we log for now. Also cleaned
up a lot of the code. Lastly, we set freed vars to NULL.
This commit has several other changes. The changes
include the following:
1. Changed the port numbers for the NRUE<->Proxy
2. Fixed the send to function in the NR UE
(Previously only sending buffer not buffer+msg_type)
3. Updated pack/unpack of the SSB PDU (new RSRB field added)
4. Fixed several NR logs
5. Opening socket with NRUE<->Proxy AFTER receving RRC
measurement request from the LTE UE
Melissa Elkadi