gNB: adaptive DL/UL MCS based on reported SSB-SINR and measured PUSCH SNR
Currently this is used esp. if the number of rounds is limited to 1
(e.g. disable_harq).
Revert "Removed TRP-scheme byte from UL BF PDU to Interop with Aerial 25-1 (FAPI 10.02)"
This commit broke compatibility with Aerial when compiled with
-DSCF_FAPI_10_04_SRS=ON. It was decided that this should become the
default.
Modify documentation, and use a dedicated image name to make it clear in
the CI that it has SRS.
This commit broke compatibility with Aerial when compiled with -DSCF_FAPI_10_04_SRS=ON. It was decided that this should become the default.
This reverts commit 8beb382277.
reset MSG3 C-RNTI flag in case of failure
If MSG3 with C-RNTI fails, the UE should come back with a
re-establishment (after a given number of RA failures in general). In
that case, the OAI UE wouldn't reset the MSG3 with C-RNTI flag leading
to re-establishment failure.
feat(ldpc_aal): Do not try EAL init if FHI 7.2 is enabled
When FHI 7.2 is enabled, the EAL initialization is done by the FHI and
the attempt to init EAL by ldpc_aal will fail. In that case, it is not
necessary neither to provide a DPDK core list for BBDEV.
This MR offers to skip EAL init in ldpc_aal when FHI 7.2 is enabled in
order to avoid error messages in the log and to allow dropping the
useless DPDK cores argument in that case.
Also add some fixes to the LDPC offload documentation.
NR UE: add support for PDSCH rate matching with NZP CSI-RS
Currently only ZP CSI-RS is considered in function
configure_ratematching_csi, add support for NZP CSI-RS.
Closes#975
If the DCI in PDCCH is not correctly received, no PDSCH would be decoded but counted as no error.
Also if the DCI was not correctly received, a TBS of 0 would be used in some computations and memory allocations.
Fix these not counting if there is no PDSCH decoding, and by using the known TBS instead of the one received from the DCI.
Integration: `2025.w36`
* !3613 Speedup complex rotate for aarch64
* !3614 Ldpc encoder zc384 optimization
* !3625 gNB scheduler small fixes
* !3629 Fix for gNB max feedback time parameter
* !3619 Fix RA 2-Step MgsB Ack at UE
* !3626 Upgrade CI to Aerial 25-2
See merge request oai/openairinterface5g!3627
When FHI 7.2 is enabled, the EAL initialization is done by the FHI and
the attempt to init EAL by ldpc_aal will fail.
In that case, it is not necessary neither to provide a DPDK core list
for BBDEV.
This commit offers to skip EAL initialization if it is already initialized
in order to allow dropping the useless DPDK cores argument in that case.
The change relies on `rte_dev_probe` to detect if EAL was already
initialized.
Fix for gNB max feedback time parameter
This bug is causing assertions like the following
Assertion (curr_pucch->active == 0) failed!
In nr_csi_meas_reporting() /oai-ran/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c:282
CSI structure is scheduled in advance. It should be free!
because the PUCCH structure would be smaller than it should be causing
overlapping.
gNB scheduler small fixes
A couple of fixes in gNB scheduling function. Removing a superfluous input from
CCE function and adding a missing call to reset beam allocation.
Ldpc encoder zc384 optimization
This is a modification for the ldpc encoder which improves performance for
high-throughput cases. It contains a newly-generated file for innermost part of
the parity bit generation which, for AVX512, uses the mm512_permutex2var_epi8
instruction and for 128-bit (aarch64) the mm_alignr_epi8 (vextq_s8) in the
computation corresponding to each non-zero bit of the H matrix. This allows for
removing a very large memcpy and reduces the memory demand for the parity matrix
computation. For the moment this is limited to largest case in BG1, namely
Zc=384. This is the only format used when the number of segments after codeblock
segmentation is large (>8). This improves the timing required for ldpc parity
bits generation by more than a factor 2 with AVX512. This significantly reduces
the total time to generate the DLSCH/PDSCH.
See the merge request description for numbers.
Speedup complex rotate for aarch64
This is a simple optimization for aarch64 for the "rotate_cpx_vector" used for
the phase_rotation in 5G NR. It provides a speedup of around 1.5 on high-end
aarch64 targets compared to the SIMDe translated version. It is implemented with
native NEON intrinsics and was largely inspired by suggestions from ChatGPT 5 :-)
Robert Schmidt