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Merge remote-tracking branch 'origin/multi_gNB_sync' into integration_2026_w09 (!3892)

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Synchronize multiple gNBs by aligning the slot boundaries

Currently, we derive frame and slot number based on proc->timestamp_rx
using

    proc->frame_rx = (proc->timestamp_rx / (fp->samples_per_subframe*10))&1023;
    proc->tti_rx = get_slot_from_timestamp(proc->timestamp_rx, fp);

This ignores the samples

    proc->timestamp_rx % fp->samples_per_frame

while computing the frame and slot number creating a mis-alignment with
the slot boundaries. A detailed description of the slot misalignment
in a pictorial representation can be seen in an attachment in the MR [1].

We fix this alignment issue by compensating these samples during the
first reception.

We can test the synchronization of the multiple gNBs from the estimated
ToAs from the PRS in the Downlink and the estimated ToAs from the SRS in
the Uplink using rfsim.

In order to test this, make sure you build gNB and nrUE along with the
telnetsrv flag using the option --build-lib telnetsrv.

Also, enable the following log in the function
nr_est_srs_timing_advance_offset() in
openair1/PHY/NR_ESTIMATION/nr_measurements_gNB.c to observe SRS ToAs

    LOG_I(NR_PHY, "SRS estimatd ToA %d [RX ant %d]: TA offset %d, TA offset ns %d (max_val %ld, mean_val %ld, max_idx %d)\n", srs_toa, ant, *ta_offset, *ta_offset_nsec, max_val, mean_val, max_idx);

Furthermore, update the option Active_gNBs = 2; in
targets/PROJECTS/GENERIC-NR-5GC/CONF/ue.nr.prs.fr1.106prb.conf to enable
decoding PRS transmitted from two gNBs

To run:

nrUE:

    sudo ./nr-uesoftmodem -r 106 --numerology 1 --band 78 -C 3619200000 --uicc0.imsi 001010000000001 --rfsim --phy-test -O ../../../targets/PROJECTS/GENERIC-NR-5GC/CONF/ue.nr.prs.fr1.106prb.conf --rfsimulator.serveraddr server

gNB 0:

    sudo ./nr-softmodem -O ../../../targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb0.prs.band78.fr1.106PRB.usrpx310.conf --gNBs.[0].min_rxtxtime 6 --rfsim --phy-test --rfsimulator.[0].serveraddr 127.0.0.1 --rfsimulator.[0].options chanmod --rfsimulator.[0].modelname AWGN --telnetsrv

gNB 1:

    sudo ./nr-softmodem -O ../../../targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb1.prs.band78.fr1.106PRB.usrpx310.conf --gNBs.[0].min_rxtxtime 6 --rfsim --phy-test --rfsimulator.[0].serveraddr 127.0.0.1 --rfsimulator.[0].options chanmod --rfsimulator.[0].modelname AWGN --telnetsrv

When we run the nrUE, gNB0 and gNB1, we can see the following logs

nrUE:

    [PHY] [gNB 0][rsc 0][Rx 0][sfn 976][slot 2] DL PRS ToA ==> 0.0 / 2048 samples, peak channel power -16.4 dBm, SNR +4.0 dB, rsrp -42.2 dBm
    [PHY] [gNB 1][rsc 0][Rx 0][sfn 976][slot 3] DL PRS ToA ==> 0.0 / 2048 samples, peak channel power -16.4 dBm, SNR +4.0 dB, rsrp -42.2 dBm

gNB 0:

    [NR_PHY] SRS estimatd ToA 0 [RX ant 0]: TA offset 31, TA offset ns 0 (max_val 99820162, mean_val 80176, max_idx 0)

gNB 1:

    [NR_PHY] SRS estimatd ToA 0 [RX ant 0]: TA offset 31, TA offset ns 0 (max_val 98784562, mean_val 79369, max_idx 0)

From the above logs, when we run the rfsim and when no delays introduced, we can observe the following results

In the Downlink at the UE, the estimated ToAs using PRS from both gNB0
and gNB1 are 0 and in the uplink, the ToA estimated from the SRS
transmitted by the UE at both the gNBs are also 0. This indicates that
both the gNBs are synchronized along with their slot boundaries. We also
highlight that this is not the case in the current develop branch since
the slot boundaries are not aligned.

We also can test the multi gNB synchronization by introducing delays
using telnet as follows,

Introduce new_offset (delay) of 4 samples to the gNB 0 from UE in the
uplink as follows,

    openairinterface5g$ echo rfsimu setdistance rfsimu_channel_enB0 20 | ncat --idle 1 127.0.0.80 9080
    softmodem_gnb> rfsimu_setdistance_cmd: new_offset 4, new (exact) distance 19.518 m, new delay 0.000065 ms
    Ncat: Idle timeout expired (1000 ms).

We can oberve this delay of 4 samples being reflected in the estimated
SRS ToAs at gNB 0 while not changing the ToA in gNB 1

    [NR_PHY] SRS estimatd ToA 4 [RX ant 0]: TA offset 31, TA offset ns 65 (max_val 98803636, mean_val 79430, max_idx 8)

similarly, Introduce new_offset (delay) of 2 samples to the gNB 1 from
UE in the uplink as follows,

    openairinterface5g$ echo rfsimu setdistance rfsimu_channel_enB0 10 | ncat --idle 1 127.0.0.81 9081
    softmodem_gnb> rfsimu_setdistance_cmd: new_offset 2, new (exact) distance 9.759 m, new delay 0.000033 ms
    Ncat: Idle timeout expired (1000 ms).

We can oberve this delay of 2 samples being reflected in the estimated
SRS ToAs at gNB 1 while not changing the ToA in gNB 0

    [NR_PHY] SRS estimatd ToA 2 [RX ant 0]: TA offset 31, TA offset ns 32 (max_val 98962768, mean_val 79552, max_idx 4)

Closes #897

[1] https://gitlab.eurecom.fr/oai/openairinterface5g/-/merge_requests/3892
This commit is contained in:
Robert Schmidt
2026-02-26 08:42:47 +01:00
parent 6715464b3a af438ef5e5
commit 433bd7be3f
8 changed files with 286 additions and 277 deletions
Download Patch File Download Diff File Expand all files Collapse all files
ci-scripts/yaml_files/5g_f1_rfsimulator/docker-compose.yaml
+1 -1
View File
@@ -166,7 +166,7 @@ services:
--gNBs.[0].servingCellConfigCommon.[0].physCellId 1
--gNBs.[0].servingCellConfigCommon.[0].absoluteFrequencySSB 643296
--gNBs.[0].servingCellConfigCommon.[0].dl_absoluteFrequencyPointA 642024
--gNBs.[0].servingCellConfigCommon.[0].ssb_PositionsInBurst_Bitmap 3
--gNBs.[0].servingCellConfigCommon.[0].ssb_PositionsInBurst_Bitmap 2
--MACRLCs.[0].local_n_address 192.168.71.172
--rfsimulator.[0].serveraddr 192.168.71.181
ASAN_OPTIONS: detect_leaks=0:detect_odr_violation=0
ci-scripts/yaml_files/5g_rfsimulator_n2_ho/docker-compose.yaml
+1
View File
@@ -267,6 +267,7 @@ services:
--gNBs.[0].servingCellConfigCommon.[0].physCellId 1
--gNBs.[0].servingCellConfigCommon.[0].absoluteFrequencySSB 621312
--gNBs.[0].servingCellConfigCommon.[0].dl_absoluteFrequencyPointA 620040
--gNBs.[0].servingCellConfigCommon.[0].ssb_PositionsInBurst_Bitmap 2
--MACRLCs.[0].local_n_address 192.168.71.182
--MACRLCs.[0].remote_n_address 192.168.71.180
ASAN_OPTIONS: detect_leaks=0:detect_odr_violation=0
doc/handover-tutorial.md
+5
View File
@@ -104,6 +104,9 @@ information further below.
A number of remarks:
1. DU0 and DU1 should use different SSBs, i.e., make sure that
`ssb_PositionsInBurst_Bitmap` is set to send SSB in different slots in the
configurataion files of DU0 (e.g., set to 1) and DU1 (e.g., set to 2).
1. It is important that you start DU0, UE, DU1 in order, and having UE connect
to DU0 before starting DU1. This is because we don't employ any channel
emulation, and the UE could not decode the SIB1 of DU0 to connect.
@@ -433,6 +436,8 @@ a core-network-based handover.
We assume:
* `ssb_PositionsInBurst_Bitmap` set to different values for gNB-PCI0 and
gNB-PCI1 as described further above.
* Two independent gNBs connected to the same 5GC via N2 interface.
* A UE initially connected to gNB-PCI0, which will be handed over to gNB-PCI1.
* Handover is triggered by either a decision based measurement event (e.g. A3)
executables/nr-ru.c
+19
View File
@@ -439,6 +439,25 @@ static void rx_rf(RU_t *ru, int *frame, int *slot)
proc->first_rx = 0;
*frame = proc->frame_rx;
*slot = proc->tti_rx;
// Align to slot boundary
uint64_t samples_to_slot_boundary = 0;
uint64_t sample_offset_within_frame = proc->timestamp_rx % fp->samples_per_frame;
uint64_t sample_offset_within_slot = sample_offset_within_frame - get_samples_slot_timestamp(fp, *slot);
if (sample_offset_within_slot > 0) {
samples_to_slot_boundary = get_samples_per_slot(*slot, fp) - sample_offset_within_slot;
LOG_A(NR_PHY, "Aligning to the slot boundary %lu\n", samples_to_slot_boundary);
// Read and discard the samples in the first_rx to align to the slot boundary
rxs = ru->rfdevice.trx_read_func(&ru->rfdevice, &ts, rxp, samples_to_slot_boundary, nb);
if (rxs != samples_to_slot_boundary)
LOG_E(PHY, "rx_rf: Asked for %ld samples, got %d from USRP\n", samples_to_slot_boundary, rxs);
proc->timestamp_rx += samples_to_slot_boundary;
if (*slot + 1 >= fp->slots_per_frame)
*frame = *frame + 1;
*slot = (*slot + 1) % fp->slots_per_frame;
}
}
metadata mt = {.slot = *slot, .frame = *frame};
targets/PROJECTS/GENERIC-NR-5GC/CONF/channelmod_rfsimu.conf
+33
View File
@@ -0,0 +1,33 @@
channelmod = {
max_chan = 10;
modellist = "modellist_rfsimu_1";
modellist_rfsimu_1 = (
{ # DL, modify on UE side
model_name = "rfsimu_channel_enB0"
type = "AWGN";
ploss_dB = 0;
noise_power_dB = -10;
forgetfact = 0;
offset = 0;
ds_tdl = 0;
},
{ # DL, modify on UE side
model_name = "rfsimu_channel_enB1"
type = "AWGN";
ploss_dB = 0;
noise_power_dB = -10;
forgetfact = 0;
offset = 0;
ds_tdl = 0;
},
{ # UL, modify on gNB side
model_name = "rfsimu_channel_ue0"
type = "AWGN";
ploss_dB = 0;
noise_power_dB = -10;
forgetfact = 0;
offset = 0;
ds_tdl = 0;
}
);
};
targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.fr1.106PRB.pci1.rfsim.conf
+1 -1
View File
@@ -112,7 +112,7 @@ gNBs =
hoppingId = 40;
p0_nominal = -90;
ssb_PositionsInBurst_Bitmap = 1;
ssb_PositionsInBurst_Bitmap = 2;
# ssb_periodicityServingCell
# 0 = ms5, 1=ms10, 2=ms20, 3=ms40, 4=ms80, 5=ms160, 6=spare2, 7=spare1
targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb0.prs.band78.fr1.106PRB.usrpx310.conf
+113 -138
View File
@@ -6,43 +6,18 @@ gNBs =
(
{
////////// Identification parameters:
gNB_ID = 0xe00;
# cell_type = "CELL_MACRO_GNB";
gNB_ID = 0xe00;
gNB_name = "gNB-OAI";
// Tracking area code, 0x0000 and 0xfffe are reserved values
tracking_area_code = 1;
plmn_list = ({ mcc = 001; mnc = 01; mnc_length = 2; snssaiList = ({ sst = 1; }) });
plmn_list = ({
mcc = 208;
mnc = 97;
mnc_length = 2;
snssaiList = (
{
sst = 1;
sd = 0x010203; // 0 false, else true
},
{
sst = 1;
sd = 0x112233; // 0 false, else true
}
);
});
nr_cellid = 12345678L
# tr_s_preference = "local_mac"
nr_cellid = 12345678L;
////////// Physical parameters:
#pusch_TargetSNRx10 = 200;
#pucch_TargetSNRx10 = 200;
ul_prbblacklist = "51,52,53,54"
min_rxtxtime = 6;
do_SRS = 0;
do_SRS = 1;
servingCellConfigCommon = (
{
@@ -50,133 +25,119 @@ gNBs =
physCellId = 0;
# downlinkConfigCommon
# downlinkConfigCommon
#frequencyInfoDL
# this is 3301.68 MHz + 22*12*30e-3 MHz = 3309.6
#absoluteFrequencySSB = 620640;
# this is 3300.60 MHz + 53*12*30e-3 MHz = 3319.68
absoluteFrequencySSB = 621312;
# this is 3503.28 MHz + 22*12*30e-3 MHz = 3511.2
#absoluteFrequencySSB = 634080;
# this is 3600.48 MHz
#absoluteFrequencySSB = 640032;
#dl_frequencyBand = 78;
# this is 3301.68 MHz
#dl_absoluteFrequencyPointA = 620112;
# this is 3300.60 MHz
dl_absoluteFrequencyPointA = 620040;
# this is 3502.56 MHz
#dl_absoluteFrequencyPointA = 633552;
# this is 3600.48 MHz
#dl_absoluteFrequencyPointA = 640032;
# this is 3600 MHz + 43 PRBs@30kHz SCS (same as initial BWP)
absoluteFrequencySSB = 641280;
dl_frequencyBand = 78;
# this is 3600 MHz
dl_absoluteFrequencyPointA = 640008;
#scs-SpecificCarrierList
dl_offstToCarrier = 0;
dl_offstToCarrier = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
dl_subcarrierSpacing = 1;
dl_carrierBandwidth = 106;
dl_subcarrierSpacing = 1;
dl_carrierBandwidth = 106;
#initialDownlinkBWP
#genericParameters
# this is RBstart=0,L=106 (275*(L-1))+RBstart
initialDLBWPlocationAndBandwidth = 28875;
# this is RBstart=27,L=48 (275*(L-1))+RBstart
initialDLBWPlocationAndBandwidth = 28875; # 6366 12925 12956 28875 12952
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
initialDLBWPsubcarrierSpacing = 1;
initialDLBWPsubcarrierSpacing = 1;
#pdcch-ConfigCommon
initialDLBWPcontrolResourceSetZero = 11;
initialDLBWPsearchSpaceZero = 0;
initialDLBWPcontrolResourceSetZero = 12;
initialDLBWPsearchSpaceZero = 0;
#uplinkConfigCommon
#uplinkConfigCommon
#frequencyInfoUL
ul_frequencyBand = 78;
ul_frequencyBand = 78;
#scs-SpecificCarrierList
ul_offstToCarrier = 0;
ul_offstToCarrier = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
ul_subcarrierSpacing = 1;
ul_carrierBandwidth = 106;
pMax = 20;
ul_subcarrierSpacing = 1;
ul_carrierBandwidth = 106;
pMax = 20;
#initialUplinkBWP
#genericParameters
initialULBWPlocationAndBandwidth = 28875;
initialULBWPlocationAndBandwidth = 28875;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
initialULBWPsubcarrierSpacing = 1;
initialULBWPsubcarrierSpacing = 1;
#rach-ConfigCommon
#rach-ConfigGeneric
prach_ConfigurationIndex = 98;
prach_ConfigurationIndex = 98;
#prach_msg1_FDM
#0 = one, 1=two, 2=four, 3=eight
prach_msg1_FDM = 0;
prach_msg1_FrequencyStart = 0;
zeroCorrelationZoneConfig = 12;
preambleReceivedTargetPower = -104;
prach_msg1_FDM = 0;
prach_msg1_FrequencyStart = 0;
zeroCorrelationZoneConfig = 13;
preambleReceivedTargetPower = -96;
#preamblTransMax (0...10) = (3,4,5,6,7,8,10,20,50,100,200)
preambleTransMax = 6;
preambleTransMax = 6;
#powerRampingStep
# 0=dB0,1=dB2,2=dB4,3=dB6
powerRampingStep = 1;
powerRampingStep = 1;
#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;
#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;
ssb_perRACH_OccasionAndCB_PreamblesPerSSB = 14;
#ra_ContentionResolutionTimer
#(0..7) 8,16,24,32,40,48,56,64
ra_ContentionResolutionTimer = 7;
rsrp_ThresholdSSB = 19;
ra_ContentionResolutionTimer = 7;
rsrp_ThresholdSSB = 19;
#prach-RootSequenceIndex_PR
#1 = 839, 2 = 139
prach_RootSequenceIndex_PR = 2;
prach_RootSequenceIndex = 1;
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,
msg1_SubcarrierSpacing = 1,
# restrictedSetConfig
# 0=unrestricted, 1=restricted type A, 2=restricted type B
restrictedSetConfig = 0,
restrictedSetConfig = 0,
msg3_DeltaPreamble = 1;
p0_NominalWithGrant =-90;
msg3_DeltaPreamble = 1;
p0_NominalWithGrant =-90;
# pucch-ConfigCommon setup :
# pucchGroupHopping
# 0 = neither, 1= group hopping, 2=sequence hopping
pucchGroupHopping = 0;
hoppingId = 40;
p0_nominal = -90;
pucchGroupHopping = 0;
hoppingId = 40;
p0_nominal = -90;
ssb_PositionsInBurst_Bitmap = 1;
ssb_PositionsInBurst_Bitmap = 1;
# ssb_periodicityServingCell
# 0 = ms5, 1=ms10, 2=ms20, 3=ms40, 4=ms80, 5=ms160, 6=spare2, 7=spar e1
ssb_periodicityServingCell = 2;
# 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;
dmrs_TypeA_Position = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
subcarrierSpacing = 1;
subcarrierSpacing = 1;
#tdd-UL-DL-ConfigurationCommon
#tdd-UL-DL-ConfigurationCommon
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
referenceSubcarrierSpacing = 1;
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 = 6;
nrofDownlinkSlots = 7;
nrofDownlinkSymbols = 6;
nrofUplinkSlots = 2;
nrofUplinkSymbols = 4;
dl_UL_TransmissionPeriodicity = 6;
nrofDownlinkSlots = 7;
nrofDownlinkSymbols = 6;
nrofUplinkSlots = 2;
nrofUplinkSymbols = 4;
ssPBCH_BlockPower = -25;
ssPBCH_BlockPower = -25;
}
);
@@ -190,27 +151,53 @@ gNBs =
SCTP_OUTSTREAMS = 2;
};
////////// AMF parameters:
amf_ip_address = ({ ipv4 = "CI_MME_IP_ADDR"; });
amf_ip_address = ({ ipv4 = "192.168.70.132"; });
NETWORK_INTERFACES :
{
GNB_IPV4_ADDRESS_FOR_NG_AMF = "CI_GNB_IP_ADDR";
GNB_IPV4_ADDRESS_FOR_NGU = "CI_GNB_IP_ADDR";
GNB_PORT_FOR_S1U = 2152; # Spec 2152
};
NETWORK_INTERFACES :
{
GNB_IPV4_ADDRESS_FOR_NG_AMF = "192.168.70.129/24";
GNB_IPV4_ADDRESS_FOR_NGU = "192.168.70.129/24";
GNB_PORT_FOR_S1U = 2152; # Spec 2152
};
}
);
MACRLCs = (
{
num_cc = 1;
tr_s_preference = "local_L1";
tr_n_preference = "local_RRC";
pusch_TargetSNRx10 = 200;
pucch_TargetSNRx10 = 200;
num_cc = 1;
tr_s_preference = "local_L1";
tr_n_preference = "local_RRC";
pusch_TargetSNRx10 = 150;
pucch_TargetSNRx10 = 200;
}
);
L1s = (
{
num_cc = 1;
tr_n_preference = "local_mac";
prach_dtx_threshold = 120;
pucch0_dtx_threshold = 100;
ofdm_offset_divisor = 8; #set this to UINT_MAX for offset 0
}
);
RUs = (
{
local_rf = "yes"
nb_tx = 1
nb_rx = 1
att_tx = 12;
att_rx = 12;
bands = [78];
max_pdschReferenceSignalPower = -27;
max_rxgain = 114;
eNB_instances = [0];
clock_src = "internal";
}
);
@@ -234,32 +221,6 @@ prs_config = (
}
);
L1s = (
{
num_cc = 1;
tr_n_preference = "local_mac";
prach_dtx_threshold = 120;
#pucch0_dtx_threshold = 150;
}
);
RUs = (
{
local_rf = "yes"
nb_tx = 1
nb_rx = 1
att_tx = 0
att_rx = 0;
bands = [78];
max_pdschReferenceSignalPower = -27;
max_rxgain = 75;
eNB_instances = [0];
sf_extension = 0
sdr_addrs = "mgmt_addr=172.21.19.14,addr=192.168.10.2,second_addr=192.168.20.2,clock_source=internal,time_source=internal"
}
);
rfsimulator :
{
serveraddr = "server";
@@ -295,5 +256,19 @@ log_config :
rlc_log_level ="info";
pdcp_log_level ="info";
rrc_log_level ="info";
f1ap_log_level ="debug";
ngap_log_level ="debug";
f1ap_log_level ="debug";
};
e2_agent = {
near_ric_ip_addr = "127.0.0.1";
#sm_dir = "/path/where/the/SMs/are/located/"
sm_dir = "/usr/local/lib/flexric/"
};
telnetsrv = {
listenport = 9080
listenaddr= "127.0.0.80"
}
@include "channelmod_rfsimu.conf"
targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb1.prs.band78.fr1.106PRB.usrpx310.conf
+113 -137
View File
@@ -6,42 +6,18 @@ gNBs =
(
{
////////// Identification parameters:
gNB_ID = 0xe00;
# cell_type = "CELL_MACRO_GNB";
gNB_ID = 0xe00;
gNB_name = "gNB-OAI";
// Tracking area code, 0x0000 and 0xfffe are reserved values
tracking_area_code = 1;
plmn_list = ({ mcc = 001; mnc = 01; mnc_length = 2; snssaiList = ({ sst = 1; }) });
plmn_list = ({
mcc = 208;
mnc = 97;
mnc_length = 2;
snssaiList = (
{
sst = 1;
sd = 0x010203; // 0 false, else true
},
{
sst = 1;
sd = 0x112233; // 0 false, else true
}
);
});
nr_cellid = 12345678L
# tr_s_preference = "local_mac"
nr_cellid = 12345678L;
////////// Physical parameters:
#pusch_TargetSNRx10 = 200;
#pucch_TargetSNRx10 = 200;
ul_prbblacklist = "51,52,53,54"
min_rxtxtime = 6;
do_SRS = 0;
do_SRS = 1;
servingCellConfigCommon = (
{
@@ -49,133 +25,119 @@ gNBs =
physCellId = 0;
# downlinkConfigCommon
# downlinkConfigCommon
#frequencyInfoDL
# this is 3301.68 MHz + 22*12*30e-3 MHz = 3309.6
#absoluteFrequencySSB = 620640;
# this is 3300.60 MHz + 53*12*30e-3 MHz = 3319.68
absoluteFrequencySSB = 621312;
# this is 3503.28 MHz + 22*12*30e-3 MHz = 3511.2
#absoluteFrequencySSB = 634080;
# this is 3600.48 MHz
#absoluteFrequencySSB = 640032;
#dl_frequencyBand = 78;
# this is 3301.68 MHz
#dl_absoluteFrequencyPointA = 620112;
# this is 3300.60 MHz
dl_absoluteFrequencyPointA = 620040;
# this is 3502.56 MHz
#dl_absoluteFrequencyPointA = 633552;
# this is 3600.48 MHz
#dl_absoluteFrequencyPointA = 640032;
# this is 3600 MHz + 43 PRBs@30kHz SCS (same as initial BWP)
absoluteFrequencySSB = 641280;
dl_frequencyBand = 78;
# this is 3600 MHz
dl_absoluteFrequencyPointA = 640008;
#scs-SpecificCarrierList
dl_offstToCarrier = 0;
dl_offstToCarrier = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
dl_subcarrierSpacing = 1;
dl_carrierBandwidth = 106;
dl_subcarrierSpacing = 1;
dl_carrierBandwidth = 106;
#initialDownlinkBWP
#genericParameters
# this is RBstart=0,L=106 (275*(L-1))+RBstart
initialDLBWPlocationAndBandwidth = 28875;
# this is RBstart=27,L=48 (275*(L-1))+RBstart
initialDLBWPlocationAndBandwidth = 28875; # 6366 12925 12956 28875 12952
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
initialDLBWPsubcarrierSpacing = 1;
initialDLBWPsubcarrierSpacing = 1;
#pdcch-ConfigCommon
initialDLBWPcontrolResourceSetZero = 11;
initialDLBWPsearchSpaceZero = 0;
initialDLBWPcontrolResourceSetZero = 12;
initialDLBWPsearchSpaceZero = 0;
#uplinkConfigCommon
#uplinkConfigCommon
#frequencyInfoUL
ul_frequencyBand = 78;
ul_frequencyBand = 78;
#scs-SpecificCarrierList
ul_offstToCarrier = 0;
ul_offstToCarrier = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
ul_subcarrierSpacing = 1;
ul_carrierBandwidth = 106;
pMax = 20;
ul_subcarrierSpacing = 1;
ul_carrierBandwidth = 106;
pMax = 20;
#initialUplinkBWP
#genericParameters
initialULBWPlocationAndBandwidth = 28875;
initialULBWPlocationAndBandwidth = 28875;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
initialULBWPsubcarrierSpacing = 1;
initialULBWPsubcarrierSpacing = 1;
#rach-ConfigCommon
#rach-ConfigGeneric
prach_ConfigurationIndex = 98;
prach_ConfigurationIndex = 98;
#prach_msg1_FDM
#0 = one, 1=two, 2=four, 3=eight
prach_msg1_FDM = 0;
prach_msg1_FrequencyStart = 0;
zeroCorrelationZoneConfig = 12;
preambleReceivedTargetPower = -104;
prach_msg1_FDM = 0;
prach_msg1_FrequencyStart = 0;
zeroCorrelationZoneConfig = 13;
preambleReceivedTargetPower = -96;
#preamblTransMax (0...10) = (3,4,5,6,7,8,10,20,50,100,200)
preambleTransMax = 6;
preambleTransMax = 6;
#powerRampingStep
# 0=dB0,1=dB2,2=dB4,3=dB6
powerRampingStep = 1;
powerRampingStep = 1;
#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;
#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;
ssb_perRACH_OccasionAndCB_PreamblesPerSSB = 14;
#ra_ContentionResolutionTimer
#(0..7) 8,16,24,32,40,48,56,64
ra_ContentionResolutionTimer = 7;
rsrp_ThresholdSSB = 19;
ra_ContentionResolutionTimer = 7;
rsrp_ThresholdSSB = 19;
#prach-RootSequenceIndex_PR
#1 = 839, 2 = 139
prach_RootSequenceIndex_PR = 2;
prach_RootSequenceIndex = 1;
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,
msg1_SubcarrierSpacing = 1,
# restrictedSetConfig
# 0=unrestricted, 1=restricted type A, 2=restricted type B
restrictedSetConfig = 0,
restrictedSetConfig = 0,
msg3_DeltaPreamble = 1;
p0_NominalWithGrant =-90;
msg3_DeltaPreamble = 1;
p0_NominalWithGrant =-90;
# pucch-ConfigCommon setup :
# pucchGroupHopping
# 0 = neither, 1= group hopping, 2=sequence hopping
pucchGroupHopping = 0;
hoppingId = 40;
p0_nominal = -90;
pucchGroupHopping = 0;
hoppingId = 40;
p0_nominal = -90;
ssb_PositionsInBurst_Bitmap = 2;
ssb_PositionsInBurst_Bitmap = 2;
# ssb_periodicityServingCell
# 0 = ms5, 1=ms10, 2=ms20, 3=ms40, 4=ms80, 5=ms160, 6=spare2, 7=spar e1
ssb_periodicityServingCell = 2;
# 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;
dmrs_TypeA_Position = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
subcarrierSpacing = 1;
subcarrierSpacing = 1;
#tdd-UL-DL-ConfigurationCommon
#tdd-UL-DL-ConfigurationCommon
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
referenceSubcarrierSpacing = 1;
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 = 6;
nrofDownlinkSlots = 7;
nrofDownlinkSymbols = 6;
nrofUplinkSlots = 2;
nrofUplinkSymbols = 4;
dl_UL_TransmissionPeriodicity = 6;
nrofDownlinkSlots = 7;
nrofDownlinkSymbols = 6;
nrofUplinkSlots = 2;
nrofUplinkSymbols = 4;
ssPBCH_BlockPower = -25;
ssPBCH_BlockPower = -25;
}
);
@@ -189,27 +151,53 @@ gNBs =
SCTP_OUTSTREAMS = 2;
};
////////// AMF parameters:
amf_ip_address = ({ ipv4 = "CI_MME_IP_ADDR"; });
amf_ip_address = ({ ipv4 = "192.168.70.132"; });
NETWORK_INTERFACES :
{
GNB_IPV4_ADDRESS_FOR_NG_AMF = "CI_GNB_IP_ADDR";
GNB_IPV4_ADDRESS_FOR_NGU = "CI_GNB_IP_ADDR";
GNB_PORT_FOR_S1U = 2152; # Spec 2152
};
NETWORK_INTERFACES :
{
GNB_IPV4_ADDRESS_FOR_NG_AMF = "192.168.70.129/24";
GNB_IPV4_ADDRESS_FOR_NGU = "192.168.70.129/24";
GNB_PORT_FOR_S1U = 2152; # Spec 2152
};
}
);
MACRLCs = (
{
num_cc = 1;
tr_s_preference = "local_L1";
tr_n_preference = "local_RRC";
pusch_TargetSNRx10 = 200;
pucch_TargetSNRx10 = 200;
num_cc = 1;
tr_s_preference = "local_L1";
tr_n_preference = "local_RRC";
pusch_TargetSNRx10 = 150;
pucch_TargetSNRx10 = 200;
}
);
L1s = (
{
num_cc = 1;
tr_n_preference = "local_mac";
prach_dtx_threshold = 120;
pucch0_dtx_threshold = 100;
ofdm_offset_divisor = 8; #set this to UINT_MAX for offset 0
}
);
RUs = (
{
local_rf = "yes"
nb_tx = 1
nb_rx = 1
att_tx = 12;
att_rx = 12;
bands = [78];
max_pdschReferenceSignalPower = -27;
max_rxgain = 114;
eNB_instances = [0];
clock_src = "internal";
}
);
@@ -233,32 +221,6 @@ prs_config = (
}
);
L1s = (
{
num_cc = 1;
tr_n_preference = "local_mac";
prach_dtx_threshold = 120;
#pucch0_dtx_threshold = 150;
}
);
RUs = (
{
local_rf = "yes"
nb_tx = 1
nb_rx = 1
att_tx = 0
att_rx = 0;
bands = [78];
max_pdschReferenceSignalPower = -27;
max_rxgain = 75;
eNB_instances = [0];
sf_extension = 0
sdr_addrs = "mgmt_addr=172.21.19.14,addr=192.168.10.2,second_addr=192.168.20.2,clock_source=internal,time_source=internal"
}
);
rfsimulator :
{
serveraddr = "server";
@@ -294,5 +256,19 @@ log_config :
rlc_log_level ="info";
pdcp_log_level ="info";
rrc_log_level ="info";
f1ap_log_level ="debug";
ngap_log_level ="debug";
f1ap_log_level ="debug";
};
e2_agent = {
near_ric_ip_addr = "127.0.0.1";
#sm_dir = "/path/where/the/SMs/are/located/"
sm_dir = "/usr/local/lib/flexric/"
};
telnetsrv = {
listenport = 9081
listenaddr= "127.0.0.81"
}
@include "channelmod_rfsimu.conf"