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Merge remote-tracking branch 'origin/CI-ho-attenuator' into integration_2025_w42 (!3651)

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CI: Upgrade HO setup to use an attenuator

The goal of this MR is to upgrade HO CI setup to include a digital attenuator
that will allow us to trigger handover by attenuating the signals on the DUs.
This commit is contained in:
Jaroslava Fiedlerova
2025-10-16 11:52:02 +02:00
parent 7ef1e79c0d 5f162c436e
commit 10555929b0
10 changed files with 273 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files
ci-scripts/attenuatorctl.py
+175
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@@ -0,0 +1,175 @@
#!/usr/bin/env python3
import argparse
import logging
import itertools
import usb.core
import usb.util
import sys
import time
logging.basicConfig(
level=logging.DEBUG,
stream=sys.stdout,
format="%(message)s"
)
# helper class parsing command line options for channels and attenuators
class ValidateChAtt(argparse.Action):
def _parse_channels(s):
if len(s.split("-")) == 2:
s, e = [int(x) for x in s.split("-")]
chs = [x for x in range(s, e+1)]
if len(chs) == 0:
raise Exception(f"empty range")
elif len(s.split(",")) > 1:
chs = [int(x) for x in s.split(",")]
elif s.isdigit():
chs = [int(s)]
else:
raise Exception(f"could not parse channel expression")
for c in chs:
if not 1 <= c <= 4:
raise Exception(f"channel number must be within [1,4], but have {c}")
return chs
def __call__(self, parse, args, values, option_string=None):
ch, att = values
try:
chs = ValidateChAtt._parse_channels(ch)
except Exception as e:
parse.exit(1, f"while parsing channel expression {ch}: {e}\n")
if not att.isdigit():
parse.exit(1, f'expected number for attenuation, but got {att}\n')
if not 0 <= int(att) <= 63:
parse.exit(1, f'attenuation must be within [0,63], but is {att}\n')
opts = getattr(args, self.dest) or {}
for c in chs:
opts[c] = int(att)
setattr(args, self.dest, opts)
def _parse_args() -> argparse.Namespace:
epilog = '''
[CHs] can have the following forms:
(1) single channel number w (within [1-4])
(2) a range of channels in the form x-y (x <= y)
(3) a list of channels in the form a,b,c
[ATT] must be within [0,63] (dB)
--set and --reach are mutually exclusive
Examples:
- reset all channels to 0: -s 1-4 0
- set channels 3 and 4 to attenuation 60: -s 3,4 60
- perform attenuation sweep during 10s, reaching ch. 1+2 to 60: -r 1,2 60 -d 10
'''
parser = argparse.ArgumentParser(description='Mini-Circuit RC*DAT attenuator controller',
epilog=epilog,
formatter_class=argparse.RawDescriptionHelpFormatter)
parser.add_argument('--info', '-i', action='store_true', default=False,
help='Get Infos for all connected Mini-Circuits RC*DAT',)
parser.add_argument('--set', '-s', nargs=2, metavar=("[CHs]","[ATT]"),
action=ValidateChAtt, help="Set a fixed attenuation ATT on channels CHs")
parser.add_argument('--reach', '-r', nargs=2, metavar=("[CHs]","[ATT]"),
action=ValidateChAtt, help="Perform an \"attenuation sweep\": reach attenuation ATT on channels CHs")
parser.add_argument('--duration', '-d', action='store', type=float, default=5.0,
help='DURATION for attenuation sweep to --reach given attenuation (Default: 5)',)
parser.add_argument('--progress', '-p', action='store_true', default=False,
help='If provided, will show progress during attenuation sweep',)
return parser.parse_args()
def _exec(dev, cmd):
dev.write(1, cmd)
ans = dev.read(0x81,64)
# take from ans(wer) while valid bytes
sn = itertools.takewhile(lambda x: x < 255 and x > 0, ans)
# turn bytes into characters and accumulate into string
return "".join(map(chr, sn))
def devId(dev):
return f"{dev.idVendor:04x}:{dev.idProduct:04x}"
def _info(dev):
ident = devId(dev)
SerialN = _exec(dev, "*:SN?")
ModelN = _exec(dev, "*:MN?")
Fw = _exec(dev, "*:FIRMWARE?")
logging.info(f'{ident}: model is {ModelN}')
logging.info(f'{ident}: serial number is {SerialN}')
logging.info(f'{ident}: FW version is {Fw}')
def _get_attenuation(dev):
ident = devId(dev)
att = _exec(dev, "*:ATT?")
# remove leading "*" and split by channels
return [float(n) for n in att[1:].split(" ")]
def _set_attenuation(dev, ch_att):
ident = devId(dev)
for ch, att in ch_att:
#logging.debug(f"{ident}: Set attenuation channel {ch}: {att} dB")
att = round(4 * att) / 4 # round to closest 0.25dB
resp = _exec(dev, f"*:CHAN:{ch}:SETATT:{att};" )
def _continuous_set_attenuation(dev, ch_att_end, duration, show_progress=False, step_duration=0.25):
ident = devId(dev)
current = _get_attenuation(dev)
steps = duration / step_duration
ch_att_step = [(ch, (att_end - current[ch - 1]) / steps) for ch, att_end in ch_att_end]
logging.info(f"{ident}: sweep attenuation during {duration} s in {steps} steps: increments {ch_att_step}")
for i in range(1, int(steps)+1):
next_att = [(ch, current[ch - 1] + i * att_step) for ch, att_step in ch_att_step]
_set_attenuation(dev, next_att)
if show_progress:
logging.debug(f"{ident}: attenuation for channel(s): {next_att}")
time.sleep(step_duration)
_set_attenuation(dev, ch_att_end)
def _get_usb_devs(idVendor, idProduct):
devs = []
for dev in usb.core.find(idVendor=idVendor, idProduct=idProduct, find_all=True):
for configuration in dev:
for interface in configuration:
ifnum = interface.bInterfaceNumber
if not dev.is_kernel_driver_active(ifnum):
continue
try:
dev.detach_kernel_driver(ifnum)
except e:
pass
devs.append(dev)
return devs
if __name__ == '__main__':
# Parse the arguments
args = _parse_args()
if args.set and args.reach:
logging.error("--set and --reach are mutually exclusive")
sys.exit(1)
# 20ce:0023 is Mini-Circuit RC*DAT device
devs = _get_usb_devs(idVendor=0x20ce, idProduct=0x0023)
if len(devs) == 0:
logging.error('no Mini-Circuits RC*DAT device detected')
sys.exit(-1)
if len(devs) > 1:
logging.error('more than one Mini-Circuits RC*DAT device detected')
sys.exit(-1)
dev = devs[0]
if args.info:
_info(dev)
if args.set:
_set_attenuation(dev, [(k,v) for k,v in args.set.items()])
if args.reach:
_continuous_set_attenuation(dev, [(k,v) for k,v in args.reach.items()], args.duration, args.progress)
ident = devId(dev)
for i, a in enumerate(_get_attenuation(dev)):
logging.info(f"{ident}: Attenuation channel {i+1}: {a} dB")
sys.exit(0)
ci-scripts/ci_infra.yaml
+1 -1
View File
@@ -85,7 +85,7 @@ oc-cn5g-20897:
Undeploy: "! scripts/oc-cn5g-undeploy.sh /opt/oai-cn5g-fed-develop-2025-jan oaicicd-core-for-fhi72"
LogCollect: "! scripts/oc-cn5g-logcollect.sh /opt/oai-cn5g-fed-develop-2025-jan oaicicd-core-for-fhi72 %%log_dir%%"
oc-cn5g-00102-ho:
oc-cn5g-00103-ho:
Host: groot
NetworkScript: echo "inet 172.21.6.111"
RunIperf3Server: False
ci-scripts/conf_files/gnb-cu.sa.f1.ho.conf
+2 -2
View File
@@ -1,4 +1,4 @@
Active_gNBs = ( "oai-cu");
Active_gNBs = ( "CU-OAI");
# Asn1_verbosity, choice in: none, info, annoying
Asn1_verbosity = "none";
@@ -10,7 +10,7 @@ gNBs =
# cell_type = "CELL_MACRO_GNB";
gNB_name = "oai-cu";
gNB_name = "CU-OAI";
// Tracking area code, 0x0000 and 0xfffe are reserved values
tracking_area_code = 1;
ci-scripts/conf_files/gnb-du.sa.band78.51prb.usrpb210.ho-pci0.conf
+4 -6
View File
@@ -1,4 +1,4 @@
Active_gNBs = ( "oai-du0");
Active_gNBs = ( "DU0-OAI");
# Asn1_verbosity, choice in: none, info, annoying
Asn1_verbosity = "none";
@@ -8,7 +8,7 @@ gNBs =
////////// Identification parameters:
gNB_ID = 0xe88;
gNB_DU_ID = 0xe00;
gNB_name = "oai-du0";
gNB_name = "DU0-OAI";
// Tracking area code, 0x0000 and 0xfffe are reserved values
tracking_area_code = 1 ;
@@ -107,7 +107,7 @@ gNBs =
pucchGroupHopping = 0;
hoppingId = 40;
p0_nominal = -90;
# ssb_PositionsInBurs_BitmapPR
ssb_PositionsInBurst_Bitmap = 1;
# ssb_periodicityServingCell
@@ -159,9 +159,7 @@ MACRLCs = (
tr_n_preference = "f1";
local_n_address = "172.21.19.98";
remote_n_address = "172.21.19.98";
local_n_portc = 500;
local_n_portd = 2154;
remote_n_portc = 501;
remote_n_portd = 2153;
pusch_TargetSNRx10 = 200;
pucch_TargetSNRx10 = 230;
@@ -176,7 +174,6 @@ L1s = (
prach_dtx_threshold = 100;
pucch0_dtx_threshold = 10;
max_ldpc_iterations = 20;
sl_ahead = 3;
ofdm_offset_divisor = 8; #set this to UINT_MAX for offset 0
}
);
@@ -188,6 +185,7 @@ RUs = (
nb_rx = 1
att_tx = 0;
att_rx = 0;
sl_ahead = 3;
bands = [77];
max_pdschReferenceSignalPower = -27;
max_rxgain = 114;
ci-scripts/conf_files/gnb-du.sa.band78.51prb.usrpb210.ho-pci1.conf
+5 -7
View File
@@ -1,4 +1,4 @@
Active_gNBs = ( "oai-du1");
Active_gNBs = ( "DU1-OAI");
# Asn1_verbosity, choice in: none, info, annoying
Asn1_verbosity = "none";
@@ -8,7 +8,7 @@ gNBs =
////////// Identification parameters:
gNB_ID = 0xe88;
gNB_DU_ID = 0xe01;
gNB_name = "oai-du1";
gNB_name = "DU1-OAI";
// Tracking area code, 0x0000 and 0xfffe are reserved values
tracking_area_code = 1 ;
@@ -107,8 +107,8 @@ gNBs =
pucchGroupHopping = 0;
hoppingId = 40;
p0_nominal = -90;
# ssb_PositionsInBurs_BitmapPR
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
@@ -159,9 +159,7 @@ MACRLCs = (
tr_n_preference = "f1";
local_n_address = "172.21.19.99";
remote_n_address = "172.21.19.98";
local_n_portc = 500;
local_n_portd = 2154;
remote_n_portc = 501;
remote_n_portd = 2153;
pusch_TargetSNRx10 = 200;
pucch_TargetSNRx10 = 230;
@@ -176,7 +174,6 @@ L1s = (
prach_dtx_threshold = 100;
pucch0_dtx_threshold = 10;
max_ldpc_iterations = 20;
sl_ahead = 3;
ofdm_offset_divisor = 8; #set this to UINT_MAX for offset 0
}
);
@@ -188,6 +185,7 @@ RUs = (
nb_rx = 1
att_tx = 0;
att_rx = 0;
sl_ahead = 3;
bands = [77];
max_pdschReferenceSignalPower = -27;
max_rxgain = 114;
ci-scripts/main.py
+4
View File
@@ -321,11 +321,15 @@ def ExecuteActionWithParam(action, ctx):
# Change all execution targets to localhost
node = 'localhost'
command = test.findtext('command')
# Allow referencing repository workspace path in XML via %%workspace%%
command = command.replace("%%workspace%%", CONTAINERS.eNBSourceCodePath)
success = cls_oaicitest.Custom_Command(HTML, node, command)
elif action == 'Custom_Script':
node = test.findtext('node')
script = test.findtext('script')
# Allow referencing repository workspace path in XML via %%workspace%%
script = script.replace("%%workspace%%", CONTAINERS.eNBSourceCodePath)
success = cls_oaicitest.Custom_Script(HTML, node, script)
elif action == 'Pull_Cluster_Image':
ci-scripts/xml_files/container_sa_f1_ho_b210_quectel.xml
+66 -49
View File
@@ -51,6 +51,8 @@
000024
000025
000026
000027
000028
</TestCaseRequestedList>
<TestCaseExclusionList></TestCaseExclusionList>
@@ -58,7 +60,7 @@
<testCase id="000001">
<class>DeployCoreNetwork</class>
<desc>Initialize 5G Core</desc>
<cn_id>oc-cn5g-00102-ho</cn_id>
<cn_id>oc-cn5g-00103-ho</cn_id>
</testCase>
<testCase id="000002">
@@ -88,127 +90,134 @@
</testCase>
<testCase id="000006">
<class>Deploy_Object</class>
<desc>Deploy gNB-CU in a container</desc>
<yaml_path>ci-scripts/yaml_files/5g_sa_f1_b210_ho</yaml_path>
<node>groot</node>
<services>oai_cu</services>
<class>Custom_Command</class>
<desc>Set attenuator to 0 for DU0 and 17 for DU1</desc>
<node>rocket</node>
<command>python3 %%workspace%%/ci-scripts/attenuatorctl.py -r 1,2 0 -r 3,4 17 -d 5</command>
</testCase>
<testCase id="000007">
<class>Deploy_Object</class>
<desc>Deploy gNB-DU0 (TDD/Band77/20MHz/B210) in a container</desc>
<desc>Deploy gNB-CU in a container</desc>
<yaml_path>ci-scripts/yaml_files/5g_sa_f1_b210_ho</yaml_path>
<services>oai_du0</services>
<node>groot</node>
<services>oai-cu</services>
</testCase>
<testCase id="000008">
<class>Deploy_Object</class>
<desc>Deploy gNB-DU0 (TDD/Band77/20MHz/B210) in a container</desc>
<yaml_path>ci-scripts/yaml_files/5g_sa_f1_b210_ho</yaml_path>
<services>oai-du0</services>
<node>groot</node>
</testCase>
<testCase id="000009">
<class>Deploy_Object</class>
<desc>Deploy gNB-DU1 (TDD/Band77/20MHz/B210) in a container</desc>
<yaml_path>ci-scripts/yaml_files/5g_sa_f1_b210_ho</yaml_path>
<node>rocket</node>
<services>oai-du1</services>
</testCase>
<testCase id="000010">
<class>Attach_UE</class>
<desc>Attach Quectel</desc>
<id>raspix</id>
</testCase>
<testCase id="000009">
<testCase id="000011">
<class>Ping</class>
<desc>Ping: 100pings in 20sec</desc>
<id>raspix</id>
<svr_id>oc-cn5g-00102-ho</svr_id>
<svr_id>oc-cn5g-00103-ho</svr_id>
<ping_args>-c 100 -i 0.2</ping_args>
<ping_packetloss_threshold>5</ping_packetloss_threshold>
</testCase>
<testCase id="000010">
<class>Deploy_Object</class>
<desc>Deploy gNB-DU1 (TDD/Band77/20MHz/B210) in a container</desc>
<yaml_path>ci-scripts/yaml_files/5g_sa_f1_b210_ho</yaml_path>
<node>rocket</node>
<services>oai_du1</services>
</testCase>
<testCase id="000011">
<testCase id="000012">
<class>IdleSleep</class>
<desc>Sleep</desc>
<idle_sleep_time_in_sec>5</idle_sleep_time_in_sec>
</testCase>
<testCase id="000012">
<testCase id="000013">
<class>Custom_Command</class>
<desc>Trigger Handover</desc>
<node>groot</node>
<command>echo ci trigger_f1_ho | ncat 127.0.0.1 9090</command>
<desc>Attenuate DU0 by 15 and remove the attenuation on DU1 to trigger Handover</desc>
<node>rocket</node>
<command>python3 %%workspace%%/ci-scripts/attenuatorctl.py -r 1,2 15 -r 3,4 0 -d 5</command>
</testCase>
<testCase id="000013">
<testCase id="000014">
<class>Ping</class>
<desc>Ping: 50pings in 10sec</desc>
<id>raspix</id>
<svr_id>oc-cn5g-00102-ho</svr_id>
<svr_id>oc-cn5g-00103-ho</svr_id>
<ping_args>-c 50 -i 0.2</ping_args>
<ping_packetloss_threshold>5</ping_packetloss_threshold>
</testCase>
<testCase id="000014">
<testCase id="000015">
<class>Custom_Command</class>
<desc>UE connected to DU1?</desc>
<node>groot</node>
<command>echo ci fetch_du_by_ue_id 1 | ncat 127.0.0.1 9090 | grep "3585"</command>
</testCase>
<testCase id="000015">
<class>Custom_Command</class>
<desc>Trigger Handover</desc>
<node>groot</node>
<command>echo ci trigger_f1_ho | ncat 127.0.0.1 9090</command>
<testCase id="000016">
<class>Custom_Command</class>
<desc>Attenuate DU1 by 17dB and remove attenuation on DU0 to trigger Handover</desc>
<node>rocket</node>
<command>python3 %%workspace%%/ci-scripts/attenuatorctl.py -r 1,2 0 -r 3,4 17 -d 5</command>
</testCase>
<testCase id="000016">
<testCase id="000017">
<class>Ping</class>
<desc>Ping: 50pings in 10sec</desc>
<id>raspix</id>
<svr_id>oc-cn5g-00102-ho</svr_id>
<svr_id>oc-cn5g-00103-ho</svr_id>
<ping_args>-c 50 -i 0.2</ping_args>
<ping_packetloss_threshold>5</ping_packetloss_threshold>
</testCase>
<testCase id="000017">
<testCase id="000018">
<class>Custom_Command</class>
<desc>UE connected to DU0?</desc>
<node>groot</node>
<command>echo ci fetch_du_by_ue_id 1 | ncat 127.0.0.1 9090 | grep "3584"</command>
</testCase>
<testCase id="000018">
<class>Custom_Command</class>
<desc>Trigger Handover</desc>
<node>groot</node>
<command>echo ci trigger_f1_ho | ncat 127.0.0.1 9090</command>
<testCase id="000019">
<class>Custom_Command</class>
<desc>Attenuate DU0 by 15 and remove the attenuation on DU1 to trigger Handover</desc>
<node>rocket</node>
<command>python3 %%workspace%%/ci-scripts/attenuatorctl.py -r 1,2 15 -r 3,4 0 -d 5</command>
</testCase>
<testCase id="000019">
<testCase id="000020">
<class>Ping</class>
<desc>Ping: 50pings in 10sec</desc>
<id>raspix</id>
<svr_id>oc-cn5g-00102-ho</svr_id>
<svr_id>oc-cn5g-00103-ho</svr_id>
<ping_args>-c 50 -i 0.2</ping_args>
<ping_packetloss_threshold>5</ping_packetloss_threshold>
</testCase>
<testCase id="000020">
<testCase id="000021">
<class>Custom_Command</class>
<desc>UE connected to DU1?</desc>
<node>groot</node>
<command>echo ci fetch_du_by_ue_id 1 | ncat 127.0.0.1 9090 | grep "3585"</command>
</testCase>
<testCase id="000021">
<testCase id="000022">
<class>Detach_UE</class>
<always_exec>true</always_exec>
<desc>Detach Quectel</desc>
<id>raspix</id>
</testCase>
<testCase id="000022">
<testCase id="000023">
<class>Undeploy_Object</class>
<always_exec>true</always_exec>
<desc>Undeploy CU-DU0</desc>
@@ -216,7 +225,7 @@
<yaml_path>ci-scripts/yaml_files/5g_sa_f1_b210_ho</yaml_path>
</testCase>
<testCase id="000023">
<testCase id="000024">
<class>Undeploy_Object</class>
<always_exec>true</always_exec>
<desc>Undeploy DU1 </desc>
@@ -224,7 +233,15 @@
<yaml_path>ci-scripts/yaml_files/5g_sa_f1_b210_ho</yaml_path>
</testCase>
<testCase id="000024">
<testCase id="000025">
<class>Custom_Command</class>
<desc>Reset all channels on the attenuator to 0</desc>
<node>rocket</node>
<command>python3 %%workspace%%/ci-scripts/attenuatorctl.py -s 1-4 0</command>
<always_exec>true</always_exec>
</testCase>
<testCase id="000026">
<class>Clean_Test_Server_Images</class>
<always_exec>true</always_exec>
<desc>Clean Test Images on Test Server</desc>
@@ -232,7 +249,7 @@
<images>oai-gnb</images>
</testCase>
<testCase id="000025">
<testCase id="000027">
<class>Clean_Test_Server_Images</class>
<always_exec>true</always_exec>
<desc>Clean Test Images on Test Server</desc>
@@ -240,11 +257,11 @@
<images>oai-gnb</images>
</testCase>
<testCase id="000026">
<testCase id="000028">
<class>UndeployCoreNetwork</class>
<always_exec>true</always_exec>
<desc>Terminate 5G Core</desc>
<cn_id>oc-cn5g-00102-ho</cn_id>
<cn_id>oc-cn5g-00103-ho</cn_id>
</testCase>
</testCaseList>
ci-scripts/yaml_files/5g_sa_f1_b210_ho/docker-compose.yml
+3 -3
View File
@@ -1,5 +1,5 @@
services:
oai_cu:
oai-cu:
image: ${REGISTRY:-oaisoftwarealliance}/${GNB_IMG:-oai-gnb}:${TAG:-develop}
container_name: oai-cu
cap_drop:
@@ -25,7 +25,7 @@ services:
timeout: 5s
retries: 5
oai_du0:
oai-du0:
image: ${REGISTRY:-oaisoftwarealliance}/${GNB_IMG:-oai-gnb}:${TAG:-develop}
container_name: oai-du0
cap_drop:
@@ -57,7 +57,7 @@ services:
timeout: 5s
retries: 5
oai_du1:
oai-du1:
image: ${REGISTRY:-oaisoftwarealliance}/${GNB_IMG:-oai-gnb}:${TAG:-develop}
container_name: oai-du1
cap_drop:
doc/TESTBenches.md
+8
View File
@@ -24,6 +24,9 @@
| gracehopper1-oai | Gracehopper1 | gNB (n78, PNF/Nvidia CUBB + VNF) | Foxconn RU, _Nvidia Aerial integration_ |
| gracehopper3-oai | Gracehopper3 | build | -- |
| acamas | Acamas | 4G and 5G rfsimulator| -- |
| groot | Groot | gNB (n77) | B210 (30AD30F) |
| rocket | Rocket | gNB (n77) | B210 (31F8010) |
| raspix | Raspix | COTS UE | Quectel RM520N |
Note: The available resources, and their current usage, is indicated here:
- [Lockable resources of jenkins-oai](https://jenkins-oai.eurecom.fr/lockable-resources/):
@@ -226,6 +229,11 @@ information on how the images are built.
- cacofonix + FHI72 + Metanoia (gNB), up2 (Quectel RM520N UE), OAI CN5G
- OpenShift cluster for CN deployment
- FHI 7.2 testing with 100 MHz bandwidth, 2 layers in DL
- [RAN-SA-Handover-CN5G](https://jenkins-oai.eurecom.fr/job/RAN-SA-Handover-CN5G/)
~5G-NR
- groot (CU+DU0) + B210, rocket (DU1) + B210, raspix (Quectel RM520N UE), OAI CN5G
- OpenShift cluster for CN deployment
- Attenuator (mini circuits RC4DAT-6G-60) - controlled from rocket
### RAN-CI-NSA-Trigger
openair2/RRC/NR/rrc_gNB_du.c
+5
View File
@@ -257,6 +257,11 @@ static bool valid_du_in_neighbour_configs(const seq_arr_t *neighbour_cell_config
nc->absoluteFrequencySSB);
return false;
}
// Check neighbour band
if (get_dl_band(cell) != nc->band) {
LOG_W(NR_RRC, "Cell %ld in neighbour config: Band mismatch (%d vs %d)\n", cell->nr_cellid, get_dl_band(cell), nc->band);
return false;
}
if (get_ssb_scs(cell) != nc->subcarrierSpacing) {
LOG_W(NR_RRC,
"Cell %ld in neighbour config: SCS mismatch (%d vs %d)\n",