The following ASSERT is tirggered while testing 16 UE setup.
Assertion (NPRB>0 && (NPRB + RBstart <= BWPsize)) failed!
In PRBalloc_to_locationandbandwidth0() /home/ran/common/utils/nr/nr_common.c:286
Illegal NPRB/RBstart Configuration (1,48) for BWPsize 48
Corrected the get_start_stop_allocation calculation to fix the issue.
The implementation was wrong. The rbstop shall be the last rb that could
be allocated. Also the following two conditions are taken care
rbStart needs to be strictly smaller than rbStop
rbStart+rbSize needs to be smaller or equal to rbStop
The problem was that we confounded both conditions, so rbStart could
be equal to rbStop, which then leads to one PRB being allocated at the end.
Setting rbStop to BWPsize - 1 and making sure the above two conditions are
true does not make it lead to wrong allocations anymore.
CI: Integration Branch 2024 week 08
See merge request oai/openairinterface5g!2585
* !2540 NR UE max MIMO layers from UEcap
* !2554 NR UE RRC minor improvements
* !2563 Add missing backtick for proper code style in README.md
* !2567 Avoid integer overflows, buffer overflows, in channel levelling
* !2574 NR UE fix for configuring coreset0 and SS0
* !2575 NR UE fix init PDCP phy-test
* !2551 NR UE improvements for contention resolution timer
* !2570 CI: Replace nrmodule2 by up2
UBsan fails with errors without this commit. The commit changes:
- avoid two possible integer overflows in nr_dlsch_channel_level() and nr_dlsch_channel_level_median()
- nr_dlsch_channel_level_median() is simplified
- use MAX_ANT in avg to handle more than 4x4 config
Integration: 2024.w06
Closes#733 and #732
See merge request oai/openairinterface5g!2564
* !2490 reworking configuration of LogicalChannelConfig at MAC UE
* !2548 NR UE MSG3 buffer
* !2556 Support RC SM aperiodic subscription for "UE RRC State Change"
* !2557 fix duplicate call of RCconfig_NR_L1
* !2550 use pointer to structure instead of module_id inside MAC
* address #733
* !2560 chore(ci): force rebuild of ran-base for integration branches
* !2495 Sidelink configuration passed from RRC->MAC
* !2220 L1 tx thread
* !2559 FH 7.2 improvements
* !2566 Provide right E1 instance when creating E2 agent in CU-UP
* !2513 Update NR SA tutorials
CUuniqInstance is also used for GTP module identification, which
uses the UDP server socket as its ID. This leads to arbitrary IDs (>0),
which is wrong.
- Phy configuration will be prepared by MAC
- Sidelink preconfiguration parameters passed from RRC->MAC
- Only 1 SSB TA allocation used
- psbch payload prepared by MAC after receiving the tx slss req
PUSCH decoding is started multiple times in nr_ulsch_procedures() for
each ULSCH segment, and stopped once inside
phy_procedures_gNB_uespec_RX(). Not only is it not clear if that works
with the API, it also might measure more than just PUSCH decoding.
Remove the PUSCH decoding, it is misleading. Check L1 RX processing
instead.
The CI would only detect a deviation from the normalized value based on
a configurable threshold, typically 1.25 (so we would tolerate a 25%
increase). However, it often happens that a timing gets shorter (e.g.,
forgot to put the timing measurements). This commit introduces a
"Deviation Threshold" (smaller than 1) to not only check that we exceed
1.0 + "Deviation Threshold" (as before), but also that are not below 1.0
- "Deviation Threshold".
In other words, assuming a maximum divergence of 25%, instead of just
checking if val > 1.25, we now also check if val < 0.75 (and flag
error).
This commit introduces a separate thread (l1_tx_thread) that processes
gNB DL/TX slots. It receives a message from the ru_thread when a new
slot started, and starts processing.
The DL part of the scheduler is run in the l1_tx_thread. Therefore,
only call UL indication (for scheduler) in UL slots. The UL indication
previously triggered the DL scheduler -- hence, it had to be called in
every slot. Now, since the DL scheduler is moved into the DL thread, we
don't have to call the scheduler in every slot anymore.
The reorder thread is removed, as reordering with this scheme is not
necessary anymore.
The main advantage of this version is that the TX can be scheduled
earlier (sl_ahead). Further, there can no longer be race conditions in
the TX path, since the scheduler/L2, TX L1 processing and the RU tx
function are all execute in the same thread (L1_tX_thread).
Also, the scheduler prepares PRACH/PUSCH/PUCCH FAPI PDUs. As of this
commit, the scheduler runs in the TX processing chain, whereas these
PDUs are destined for RX processing. Thus, too avoid data races,
instead of triggering the RX processing at the same time as TX
processing in the RU thread, this commit changes the code to trigger RX
processing after the scheduler has been run in TX processing to avoid
data races.
Finally, we synchronize RU and L1 threads. This is important for
rfsimulator, since unlike most radios, rfsimulator can run slower or
faster, depending on I/O and CPU (it does not have a stable "tick").
Co-authored-by: kiran <saikiran@iitj.ac.in>
Jaroslava Fiedlerova