This patch release contains the following fixes and improvements:
[Bug fix] Fix for a crash in a multicell configuration in which one cell has PDSCH only and another cell has PDSCH+CSI-RS.
[Enhancement] RF emissions test mode feature implementation
[Enhancement] Support for large eAxCid values
[Bug fix] Fix for multi-UE UCI feedback
[Enhancement] Parsing of data fields for FAPI 10.04 and 10.02 in TX_Data.request message
[Enhancement] Graceful recovery from HARQ pool depletion when there are continuous UL CRC errors
[Enhancement] Support for MCS > 28 in HARQ retransmissions both in UL and DL. Support for large buffer size in retransmissions and avoid TBsize computation for PUSCH. Use the information from the FAPI message.
[Enhancement] Precoding for RF emissions test mode feature. NOTE: this is an optional feature with RF emissions test mode.
[Bug fix] Antenna port mapping for CSI-RS
[Enhancement] Optio to adjusting UL goin calibration from the yaml file. This is needed for e2e system integration.
[Bug fix] Removal of unused parameters wreq_filter.
[Bug fix] Enabling cuphyoam module in l2adapter to avoid a crash.
[Enhancement] Populate subcarrier spacing value of the C-plane messages for PRACH. It is needed to support some O-RUs.
[Bug fix] Correction of slot information as provided by L2adapter for CSI-RS.
[Bug fix] Fix for L2adapter stand-alone crash when wrong configuration is sent by M-plane
[Bug fix] Fix for printPdschDynPrmsAggr crash. NOTE: It is not needed for normal functionality. It is only observed when this specific debug print is enabled.
[Bug fix] Prepone h2d copy fix for multicell scenario.
[Enhancement] Support for reporting of noise variance on PUSCH either per UE or per UE group.
[Bug fix] Correction of timing advance reporting for PUCCH format 1
[Bug fix] Correction of antenna array mapping information for CSI-RS in a multi-cell scenario.
[Enhancement] Adding additional logging to check invalid arguments going into PUSCH kernel.
[Enhancement] Handle DL channels’ setup errors gracefully to avoid a crash once an invalid argument is provided MR425
[Bug fix] Fix for precoding configuration of CSI-RS/PDSCH
[Bug fix] Correction of HARQ/SR confidence level calculation for PUCCH format 0/1
[Bug fix] Correct allocation of PDCCH workspace related to precoding
[Bug fix] Correction of beamID mappings (in FH C-plane) when multiple PDCCHs are interleaved.
[Enhancement] UL task scheduling changes to improve multicell performance
[Bug fix] Fix for simplex decoder when E < N
[Bug fix] Correct UE indexing when reporting TB CRC indication to L2 in a multi-UE scenario.
[Bug fix] Fix for potential memory corruption for PUCCH/PRACH on cuphydriver.
[Enhancement] Increase the tick value calculation robustness by catching the tick calculation errors and correcting the value if needed.
[Enhancement] Enhancements to CQE poll logging to increase visibility into compression kernels.
[Enhancement] Improvement of FH BW usage for PDCCH. PDCCH C-plane message compaction/expansion depending on beamID configuration.
[Enhancement] cuphydriver to recover without crashing from DL/UL c-plane send error
[Bug fix] Fix for indexing uci measurements in multi-UE scenario
[Bug fix] Fix floating point exception for ssb_period 0
[Enhancement] Increasing the supported UCI groups per cell to 24 (or 192 for 8 cells)
[Enhancement] Backport of Polar decoder into 22-4. Polar decoder optimizations: support of list sizes 1, 2, 4 and 8.
This release of the cuBB SDK supports the following configurations and features. These features are verified with test vectors in a simulated environment using TestMAC and RU emulator.
PUSCH
Process multiple cells (homogeneous and heterogeneous configurations) using CUDA streams or CUDA graphs
Frequency multiplexing
BW: 100 MHz
Antenna ports: 4
SU-MIMO layers: up to 4
MU-MIMO layers: up to 4
Modulation and coding rates: MCS 0 – MCS 27
Optimized LDPC decoder
UCI on PUSCH (HARQ up to 11 bits + CSI part 1 + CSI part 2 up to 11 bits)
Time-interpolated channel estimation and equalization
SINR reporting to L2
MMSE-IRC receiver
PUCCH
Format 0 + DTX detection
Format 1 + DTX detection
Format 2 (unsegmented payload) + DTX detection
Format 3 (unsegmented payload) + DTX detection
SINR / confidence level reporting to L2
PRACH
Format 0
Format B4 (multiple per slot in FDM)
Interference level reporting
PDSCH
Process multiple cells (homogeneous and heterogeneous configurations) using CUDA streams or CUDA graphs.
Frequency multiplexing
BW: 100 MHz
Antenna ports: 4
SU-MIMO layers: up to 4
MU-MIMO layers: up to 4
Modulation and coding rates: MCS 0 – MCS 27
Supports Cat-A O-RAN split and Cat-B O-RAN split. For Cat-A O-RAN split, PDSCH is implemented up to modulation and precoding (identity matrix precoder) For Cat-B O-RAN split, PDSCH is implemented up to the rate matching block.
Precoding (4 layers)
PDCCH
Process multiple cells (homogeneous and heterogeneous configurations) using CUDA streams or CUDA graphs.
Interleaved and non-interleaved mode
Aggregation level (AL) 1, 2, 4, 8, 16
1, 2, 3 symbol CORESET
Precoding (1 layer)
SS Block
Process multiple cells (homogeneous and heterogeneous configurations) using CUDA streams or CUDA graphs.
PSS, SSS generation
DMRS and PBCH generation and time-frequency mapping
Precoding (1 layer)
CSI-RS
Process multiple cells (homogeneous and heterogeneous configurations) using CUDA streams or CUDA graphs.
NZP-CSI-RS
ZP-CSI-RS
Precoding (1 layer)
LDPC decoder
Standalone LDPC decoder
SHM Logger
Support for two types of log tag: string tag and pre-configured integer tag
Pre-configured integer tags support per-tag log level configuration.