doc(oru): Example config of OAI O-RU and OAI gNB with 7.2 interface

To run the test with OAI UE and vrtsim, use the following commands, assuming
the executables are in the build directory.

OAI O-RU:
  ./nr-oru -O ../targets/PROJECTS/GENERIC-NR-5GC/CONF/ru.band77.mu1.106rb.1x1.conf --device.name vrtsim --vrtsim.role server

OAI 7.2 gNB:
  ./nr-softmodem -O ../targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.band77.mu1.106rb.fhi.1x1.conf

OAI NR UE:
  ./nr-uesoftmodem -C 4049760000 -r 106 --numerology 1 --ssb 516 --device.name vrtsim

Signed-off-by: Bartosz Podrygajlo <bartosz.podrygajlo@openairinterface.org>
This commit is contained in:
Bartosz Podrygajlo
2026-07-01 15:00:48 +02:00
parent ebdedfffcf
commit ff9b39145e
2 changed files with 321 additions and 0 deletions

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# SPDX-License-Identifier: LicenseRef-CSSL-1.0
Active_gNBs = ( "gNB-OAI");
# Asn1_verbosity, choice in: none, info, annoying
Asn1_verbosity = "none";
gNBs =
(
{
////////// Identification parameters:
gNB_ID = 0xe00;
gNB_name = "gNB-OAI";
// Tracking area code, 0x0000 and 0xfffe are reserved values
tracking_area_code = 1;
plmn_list = ({ mcc = 208; mnc = 99; mnc_length = 2; snssaiList = ({ sst = 1; }) });
nr_cellid = 12345678L;
////////// Physical parameters:
pdsch_AntennaPorts_N1 = 1;
maxMIMO_layers = 1;
min_rxtxtime = 6;
servingCellConfigCommon = (
{
#spCellConfigCommon
physCellId = 0;
# n_TimingAdvanceOffset = 0;
# downlinkConfigCommon
#frequencyInfoDL
# center frequency = 4049.76 MHz
# selected SSB frequency = 4049.76 MHz
absoluteFrequencySSB = 669984;
dl_frequencyBand = 77;
# frequency point A = 4030.68 MHz
dl_absoluteFrequencyPointA = 668712;
#scs-SpecificCarrierList
dl_offstToCarrier = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
dl_subcarrierSpacing = 1;
dl_carrierBandwidth = 106;
#initialDownlinkBWP
#genericParameters
initialDLBWPlocationAndBandwidth = 28875; #38.101-1 Table 5.3.2-1
#
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
initialDLBWPsubcarrierSpacing = 1;
#pdcch-ConfigCommon
initialDLBWPcontrolResourceSetZero = 11;
initialDLBWPsearchSpaceZero = 0;
#uplinkConfigCommon
#frequencyInfoUL
ul_frequencyBand = 77;
#scs-SpecificCarrierList
ul_offstToCarrier = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
ul_subcarrierSpacing = 1;
ul_carrierBandwidth = 106;
pMax = 23;
#initialUplinkBWP
#genericParameters
initialULBWPlocationAndBandwidth = 28875;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
initialULBWPsubcarrierSpacing = 1;
#rach-ConfigCommon
#rach-ConfigGeneric
prach_ConfigurationIndex = 157;
#prach_msg1_FDM
#0 = one, 1=two, 2=four, 3=eight
prach_msg1_FDM = 0;
prach_msg1_FrequencyStart = 0;
zeroCorrelationZoneConfig = 0;
preambleReceivedTargetPower = -100;
#preamblTransMax (0...10) = (3,4,5,6,7,8,10,20,50,100,200)
preambleTransMax = 7;
#powerRampingStep
# 0=dB0,1=dB2,2=dB4,3=dB6
powerRampingStep = 2;
#ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR
#1=oneeighth,2=onefourth,3=half,4=one,5=two,6=four,7=eight,8=sixteen
ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR = 4;
#one (0..15) 4,8,12,16,...60,64
ssb_perRACH_OccasionAndCB_PreamblesPerSSB = 15;
#ra_ContentionResolutionTimer
#(0..7) 8,16,24,32,40,48,56,64
ra_ContentionResolutionTimer = 7;
rsrp_ThresholdSSB = 19;
#prach-RootSequenceIndex_PR
#1 = 839, 2 = 139
prach_RootSequenceIndex_PR = 2;
prach_RootSequenceIndex = 1;
# SCS for msg1, can only be 15 for 30 kHz < 6 GHz, takes precendence over the one derived from prach-ConfigIndex
#
msg1_SubcarrierSpacing = 1,
# restrictedSetConfig
# 0=unrestricted, 1=restricted type A, 2=restricted type B
restrictedSetConfig = 0,
# this is the offset between the last PRACH preamble power and the Msg3 PUSCH, 2 times the field value in dB
msg3_DeltaPreamble = 2;
p0_NominalWithGrant = -100;
# pucch-ConfigCommon setup :
# pucchGroupHopping
# 0 = neither, 1= group hopping, 2=sequence hopping
pucchGroupHopping = 0;
hoppingId = 0;
p0_nominal = -96;
ssb_PositionsInBurst_Bitmap = 0x1;
# ssb_periodicityServingCell
# 0 = ms5, 1=ms10, 2=ms20, 3=ms40, 4=ms80, 5=ms160, 6=spare2, 7=spare1
ssb_periodicityServingCell = 2;
# dmrs_TypeA_position
# 0 = pos2, 1 = pos3
dmrs_TypeA_Position = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
subcarrierSpacing = 1;
#tdd-UL-DL-ConfigurationCommon
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
referenceSubcarrierSpacing = 1;
# pattern1
# dl_UL_TransmissionPeriodicity
# 0=ms0p5, 1=ms0p625, 2=ms1, 3=ms1p25, 4=ms2, 5=ms2p5, 6=ms5, 7=ms10
dl_UL_TransmissionPeriodicity = 5;
nrofDownlinkSlots = 3;
nrofDownlinkSymbols = 6;
nrofUplinkSlots = 1;
nrofUplinkSymbols = 4;
ssPBCH_BlockPower = 0;
}
);
# ------- SCTP definitions
SCTP :
{
# Number of streams to use in input/output
SCTP_INSTREAMS = 2;
SCTP_OUTSTREAMS = 2;
};
////////// AMF parameters:
amf_ip_address = ({ ipv4 = "192.168.101.132"; });
NETWORK_INTERFACES :
{
GNB_IPV4_ADDRESS_FOR_NG_AMF = "192.168.101.140";
GNB_IPV4_ADDRESS_FOR_NGU = "192.168.101.140";
GNB_PORT_FOR_NGU = 2152; # Spec 2152
};
}
);
MACRLCs = (
{
tr_s_preference = "local_L1";
tr_n_preference = "local_RRC";
pusch_TargetSNRx10 = 200;
pucch_TargetSNRx10 = 200;
pusch_FailureThres = 100;
}
);
L1s = (
{
num_cc = 1;
tr_n_preference = "local_mac";
prach_dtx_threshold = 110;
pucch0_dtx_threshold = 80;
pusch_dtx_threshold = -100;
# thread_pool_size = 8;
tx_amp_backoff_dB = 36;
L1_rx_thread_core = -1;
L1_tx_thread_core = -1;
phase_compensation = 0; # needs to match O-RU configuration
}
);
RUs = (
{
local_rf = "no";
nb_tx = 1;
nb_rx = 1;
att_tx = 0;
att_rx = 0;
bands = [77];
max_pdschReferenceSignalPower = -27;
max_rxgain = 75;
sf_extension = 0;
eNB_instances = [0];
sl_ahead = 5;
tr_preference = "raw_if4p5"; # important: activate FHI7.2
do_precoding = 0; # needs to match O-RU configuration
}
);
security = {
# preferred ciphering algorithms
# the first one of the list that an UE supports in chosen
# valid values: nea0, nea1, nea2, nea3
ciphering_algorithms = ( "nea0" );
# preferred integrity algorithms
# the first one of the list that an UE supports in chosen
# valid values: nia0, nia1, nia2, nia3
integrity_algorithms = ( "nia2", "nia0" );
# setting 'drb_ciphering' to "no" disables ciphering for DRBs, no matter
# what 'ciphering_algorithms' configures; same thing for 'drb_integrity'
drb_ciphering = "yes";
drb_integrity = "no";
};
log_config :
{
global_log_level = "info";
hw_log_level = "info";
phy_log_level = "info";
mac_log_level = "info";
rlc_log_level = "info";
pdcp_log_level = "info";
rrc_log_level = "info";
ngap_log_level = "info";
f1ap_log_level = "info";
};
fhi_72 = {
dpdk_devices = ("0000:05:02.2", "0000:05:02.3"); # one VF can be used as well
dpdk_iova_mode = "VA";
system_core = 7;
io_core = 8;
worker_cores = (9);
ru_addr = ("00:11:22:33:64:66", "00:11:22:33:64:67");
mtu = 9600;
fh_config = ({
T1a_cp_dl = (285, 470);
T1a_cp_ul = (285, 429);
T1a_up = (300, 450);
Ta4 = (900, 950);
ru_config = {
iq_width = 16;
iq_width_prach = 16;
};
prach_config = {
kbar = 0;
};
});
};

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# SPDX-License-Identifier: LicenseRef-CSSL-1.0
ORUs = (
{
tx_bw = [106];
rx_bw = [106];
carrier_tx = [4049760];
carrier_rx = [4049760];
prach_config_index = 157;
prach_msg1_start = 0;
tdd_period = 5;
num_dl_slots = 3;
num_dl_symbols = 6;
num_ul_slots = 1;
num_ul_symbols = 4;
numerology = 1;
fronthaul = {
dpdk_devices = ("0000:05:02.0", "0000:05:02.1"); # one VF can be used as well
rx_core = 25;
du_mac_addr = ("00:11:22:33:64:68", "00:11:22:33:64:69");
mtu = 9216;
T2a_up = (300, 1200);
T2a_cp = (285, 1200);
prach_eaxc_offset = 1;
extra_eal_args = ("--file-prefix", "ru");
}
});
RUs = (
{
local_rf = "no";
nb_tx = 1;
nb_rx = 1;
att_tx = 0;
att_rx = 0;
bands = [77];
max_pdschReferenceSignalPower = -27;
max_rxgain = 75;
sf_extension = 0;
eNB_instances = [0];
sl_ahead = 5;
tr_preference = "raw_if4p5"; # important: activate FHI7.2
do_precoding = 0; # needs to match O-RU configuration
# PRACH configuration
num_tp_cores = 4;
tp_cores = [-1,-1,-1,-1];
});
log_config :
{
global_log_level = "info";
hw_log_level = "info";
phy_log_level = "info";
};