What is B210 5G NR best throughput config

[Henrrysong]

Hi，guys：
I have setup srsran + open5gs and both are latest release，my hardware is USRP B210 ，I want to get best DL throughput but the config is difficult for me ，do you have any sanples or advice for me？Is it possible to reach 200-300Mbps for my B210？
Thanks very much

[Alan1321]

I was able to get a max of up to about ~100Mbps using B200.
SISO, TDD, more slots toward downlink, also change the ssb transmission interval, 50MHz cell.

For anything higher, you might wanna try better radios.

[Henrrysong]

SISO, TDD, more slots toward downlink, also change the ssb transmission interval, 50MHz cell.

Thanks a lot，do you have the configuration sample？

[Alan1321]

I did not save it. But you should be able to find all the config info in the srsRAN configuration reference page.
Here: https://docs.srsran.com/projects/project/en/latest/user_manuals/source/config_ref.html

[Henrrysong]

Now I think I get the best performance, 200Mps Dwonload and 40Mbps Upload

[Alan1321]

With B210? What config did you use?

[Henrrysong]

Upload：40-50Mbps，Download：180-200Mbps

sudo taskset -c 7,8,9,10 ./gnb -c 5G_SA_MIMO_BW30.yml

cu_cp:
amf:
addr: 127.0.0.5
bind_addr: 127.0.0.1
supported_tracking_areas:
- tac: 7
plmn_list:
- plmn: "46006"
tai_slice_support_list:
- sst: 1

ru_sdr:
device_driver: uhd
device_args: serial=000000388,type=b200,num_recv_frames=64,num_send_frames=64
clock: external
sync: external
srate: 30.72
otw_format: sc12
tx_gain: 80
rx_gain: 60

cell_cfg:
dl_arfcn: 627340
band: 78
channel_bandwidth_MHz: 30
common_scs: 30
nof_antennas_dl: 2
nof_antennas_ul: 2
plmn: "46006"
tac: 7
pci: 1
pusch:
min_k2: 2
mcs_table: qam256
pdsch:
mcs_table: qam256
tdd_ul_dl_cfg:
dl_ul_tx_period: 4
nof_dl_slots: 2
nof_dl_symbols: 10
nof_ul_slots: 1
nof_ul_symbols: 0
pucch:
sr_period_ms: 2
min_k1: 2
mac_cell_group:
bsr_cfg:
periodic_bsr_timer: 1

expert_execution:
affinities:
isolated_cpus: 4
threads:
non_rt:
nof_non_rt_threads: 4
non_rt_task_queue_size: 4096
upper_phy:
pdsch_processor_type: auto
pdsch_cb_batch_length: 0
nof_pusch_decoder_threads: 4
nof_ul_threads: 4
nof_dl_threads: 4
lower_phy:
execution_profile: quad

[Alan1321]

I see. MIMO is prolly giving you that extra boost.