openairinterface5g

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T

Jaroslava Fiedlerova 45fff9fc0f Merge remote-tracking branch 'origin/dmrs_channel_estimation_parallelization' into integration_2024_w47 (!2972 )

Parallelize PUSCH channel estimation

This MR adds PUSCH channel estimation parallelization which reduces the
processing time. It also adds time measurements for each antenna and makes
num_antennas_per_thread configurable in nr_ulsim and the gNB config file.

Some results:

- **273 PRBs 4 antennas** `./nr_ulsim -n200 -m25 -s40 -S40 -q1 -R273 -r273 -z4 -P`

| Number of threads | ULSCH channel estimation time (us) develop| ULSCH channel estimation time (us)| Antenna Processing time (us) |
| ------            | ------                                    | ------                            | ------ |
| 0                 | 194.06                                    |193.17                             |  134.82|
| 2                 | 194.88                                    |154.02                             |  93.43 |
| 4                 | 195.23                                    |134.27                             |   72.71|
- **273 PRBs 8 antennas** `./nr_ulsim -n200 -m25 -s40 -S40 -q1 -R273 -r273 -z8 -P`

| Number of threads | ULSCH channel estimation time (us) develop| ULSCH channel estimation time (us)| Antenna Processing time (us) |
| ------            | ------                                    | ------                            | ------ |
| 0                 | 387.93                                    |384.99                             |  269.39|
| 2                 | 388.10                                    |279.47                             |  161.32|
| 4                 | 387.47                                    |225.37                             |  106.52|
| 8                 | 390.53                                    |204.48                             |   83.74|

- **106 PRBs MIMO 4 layers** `./nr_ulsim -n100 -m9 -r106 -s10 -W4 -y4 -z4 -P`

| Number of threads | ULSCH channel estimation time (us) develop| ULSCH channel estimation time (us)| Antenna Processing time (us) |
| ------            | ------                                    | ------                            | ------ |
| 0                 | 263.20                                    |268.97                             |  57.49 |
| 2                 | 263.90                                    |252.61                             |  51.22 |
| 4                 | 264.17                                    |192.49                             |  36.29 |

2024-11-22 15:48:12 +01:00

CODING

Merge remote-tracking branch 'origin/config_sa_mode' into integration_2024_w45 (!3024 )

2024-11-13 09:57:07 +01:00

INIT

Merge remote-tracking branch 'origin/NTN_FR1_bands' into integration_2024_w46 (!3093 )

2024-11-18 17:30:49 +01:00

LTE_ESTIMATION

use existing functions to retrieve (i)dft enum value

2024-10-29 18:47:15 +01:00

LTE_REFSIG

fix most of doxygen warnings and errors