Problem with PCC rules configuration - RRC release

[jjose001]

Hi,

I´m trying to test 5QI capabilities with open5GS. My structure is composed by: srsUE + zmq interfaces + gNB (srsRAN_Project) + open5gs 2.7 CN (in docker compose image).
I have tried enabling QoS at the session level and it has worked correctly, but when I add different PCC rules for a specific traffic with a different 5qi than the session level, when establishing the connection of the UE in the network, this is done correctly but later an RRC release is obtained. When analyzing the messages exchanged using wireshark I see a frame called 'Error-indication'.

The configuration in open5gs database related to the UE is:

open5gs> db.subscribers.find({ "imsi" : "001010123456400" }).pretty()
[
{
_id: ObjectId('67878bd3e16e7a005ea96f7d'),
ambr: { downlink: { value: 1, unit: 3 }, uplink: { value: 1, unit: 3 } },
schema_version: 1,
msisdn: [],
imeisv: [ '3534900698733153' ],
mme_host: [],
mme_realm: [],
purge_flag: [],
access_restriction_data: 32,
subscriber_status: 0,
operator_determined_barring: 0,
network_access_mode: 0,
subscribed_rau_tau_timer: 12,
imsi: '001010123456400',
security: {
k: '465B5CE8B199B49FAA5F0A2EE238ACCC',
amf: '8000',
op: null,
opc: 'E8ED289DEBA952E4283B54E88E618CCC',
sqn: Long('128')
},
slice: [
{
_id: ObjectId('67878bd3e16e7a005ea96f7e'),
sst: 2,
default_indicator: true,
session: [
{
qos: {
arp: {
priority_level: 8,
pre_emption_capability: 1,
pre_emption_vulnerability: 1
},
index: 9
},
ambr: {
downlink: { value: 150, unit: 2 },
uplink: { value: 100, unit: 2 }
},
_id: ObjectId('67878bd3e16e7a005ea96f7f'),
name: 'pcc',
type: 1,
ue: { ipv4: '10.45.0.100' },
pcc_rule: [
{
qos: {
arp: {
priority_level: 2,
pre_emption_capability: 2,
pre_emption_vulnerability: 2
},
mbr: {
downlink: { value: 100, unit: 2 },
uplink: { value: 50, unit: 2 }
},
gbr: {
downlink: { value: 64, unit: 1 },
uplink: { value: 32, unit: 1 }
},
index: 1
},
_id: ObjectId('67878bd3e16e7a005ea96f80'),
flow: [
{
_id: ObjectId('67878bd3e16e7a005ea96f81'),
direction: 1,
description: 'permit out ip from any to assigned'
},
{
_id: ObjectId('67878bd3e16e7a005ea96f82'),
direction: 2,
description: 'permit out ip from assigned to any'
}
]
}
]
}
],
sd: '000002'
}
],
__v: 0
}
]

gNB configuration

qos:

five_qi: 1 # E.g. Conversational Voice
rlc:
  mode: um-bidir
  um-bidir:
    tx:
      sn: 12
      queue-size: 16384
      queue-bytes: 6172672
    rx:
      sn: 12
      t-reassembly: 50
pdcp:
  integrity_required: false
  tx:
    sn: 12
    discard_timer: -1
    status_report_required: false
  rx:
    sn: 12
    t_reordering: 80
    out_of_order_delivery: false
f1u_du:
  backoff_timer: 10
f1u_cu_up:
  backoff_timer: 10
mac:
  lc_priority: 4
  lc_group_id: 1
  bucket_size_duration_ms: 5
  prioritized_bit_rate_kBps: 65537

• five_qi: 2 # E.g. Conversational Video
  rlc:
  mode: um-bidir
  um-bidir:
  tx:
  sn: 12
  queue-size: 16384
  queue-bytes: 6172672
  rx:
  sn: 12
  t-reassembly: 50
  pdcp:
  integrity_required: false
  tx:
  sn: 12
  discard_timer: -1
  status_report_required: false
  rx:
  sn: 12
  t_reordering: 80
  out_of_order_delivery: false
  f1u_du:
  backoff_timer: 10
  f1u_cu_up:
  backoff_timer: 10
  mac:
  lc_priority: 4
  lc_group_id: 1
  bucket_size_duration_ms: 5
  prioritized_bit_rate_kBps: 65537
• five_qi: 5 # E.g. IMS signaling
  rlc:
  mode: am
  am:
  tx:
  sn: 12
  t-poll-retransmit: 80
  max-retx-threshold: 4
  poll-pdu: 64
  poll-byte: 125
  queue-size: 16384
  queue-bytes: 6172672
  rx:
  sn: 12
  t-reassembly: 80
  t-status-prohibit: 10
  pdcp:
  integrity_required: false
  tx:
  sn: 12
  discard_timer: -1
  status_report_required: false
  rx:
  sn: 12
  t_reordering: 80
  out_of_order_delivery: false
  f1u_du:
  backoff_timer: 10
  f1u_cu_up:
  backoff_timer: 10
  mac:
  lc_priority: 5
  lc_group_id: 2
  bucket_size_duration_ms: 5
  prioritized_bit_rate_kBps: 65537
• five_qi: 7 # E.g. Voice, Video (live streaming)
  rlc:
  mode: um-bidir
  um-bidir:
  tx:
  sn: 12
  queue-size: 16384
  queue-bytes: 6172672
  rx:
  sn: 12
  t-reassembly: 50
  pdcp:
  integrity_required: false
  tx:
  sn: 12
  discard_timer: -1
  status_report_required: false
  rx:
  sn: 12
  t_reordering: 80
  out_of_order_delivery: false
  f1u_du:
  backoff_timer: 10
  f1u_cu_up:
  backoff_timer: 10
  mac:
  lc_priority: 4
  lc_group_id: 1
  bucket_size_duration_ms: 5
  prioritized_bit_rate_kBps: 65537
• five_qi: 9 # E.g. Buffered video streaming, TCP-based traffic
  rlc:
  mode: am
  am:
  tx:
  sn: 12
  t-poll-retransmit: 80
  max-retx-threshold: 4
  poll-pdu: 64
  poll-byte: 125
  queue-size: 16384
  queue-bytes: 6172672
  rx:
  sn: 12
  t-reassembly: 80
  t-status-prohibit: 10
  pdcp:
  integrity_required: false
  tx:
  sn: 12
  discard_timer: -1
  status_report_required: false
  rx:
  sn: 12
  t_reordering: 80
  out_of_order_delivery: false
  f1u_du:
  backoff_timer: 10
  f1u_cu_up:
  backoff_timer: 10
  mac:
  lc_priority: 5
  lc_group_id: 2
  bucket_size_duration_ms: 5
  prioritized_bit_rate_kBps: 65537".

Error-indication_QoS_PCC.zip

Here is the capture
What i see in my prompt:

v10@v10-srsRAN:~/srsRAN/UEs_conf$ sudo srsue ue_QoS_PCC.conf
[sudo] contraseña para v10:
Active RF plugins: libsrsran_rf_uhd.so libsrsran_rf_blade.so libsrsran_rf_zmq.so
Inactive RF plugins:
Reading configuration file ue_QoS_PCC.conf...

Built in Release mode using commit ec29b0c1f on branch master.

Opening 1 channels in RF device=zmq with args=tx_port=tcp://127.0.0.1:2001,rx_port=tcp://127.0.0.1:2000,base_srate=11.52e6
Supported RF device list: UHD bladeRF zmq file
CHx base_srate=11.52e6
Current sample rate is 1.92 MHz with a base rate of 11.52 MHz (x6 decimation)
CH0 rx_port=tcp://127.0.0.1:2000
CH0 tx_port=tcp://127.0.0.1:2001
Current sample rate is 11.52 MHz with a base rate of 11.52 MHz (x1 decimation)
Current sample rate is 11.52 MHz with a base rate of 11.52 MHz (x1 decimation)
Waiting PHY to initialize ... done!
Attaching UE...
Random Access Transmission: prach_occasion=0, preamble_index=0, ra-rnti=0x39, tti=334
Random Access Complete. c-rnti=0x4601, ta=0
RRC Connected
PDU Session Establishment successful. IP: 10.45.0.100
RRC NR reconfiguration successful.
Received RRC Release

Could someone help me solve this problem or understand why this error is occurring? Do I have to modify some of the code to enable PCC rules? Any reference to a discussion about this? all help will be appreciated
Thank you