Standard QCI Support

Revision History


Note

Revision history details are not provided for features introduced before release 21.24.

Revision Details

Release

CUPS supports Standardized Mission Critical and Push-to-Talk (MC/PTT) QCI-67 application standard, which is used in mission critical communications.

2024.03.0

First introduced.

Pre 21.24

Feature Description

The standardized QCI values—65, 66, 67, 69, and 70 support Mission Critical and Push-to-Talk (MC/PTT) applications. The standard QCIs are based on 3GPP TS 23.203 Release 12.

This feature supports the following functionality:

  • Creates, deletes, and updates default and dedicated bearers.

  • All applicable charging records include the standard QCI values.

  • All features related to QCIs work with the standard QCI values.

  • Creates, delets, and updates Dynamic rules from PCRF with QCI 67.

  • Creates and deletes Pre-defined rules with QCI 67

  • Allows WiFi HO for bearer with QCI 67

  • Supports S2B/S2A HO with MC QCIs

  • Allows LTE to Wi-Fi Handover for Bearer with QCI

  • Supprts Bulkstats for APN and SAEGW

  • MC-QCI values supports X-header insertion, DSCP marking, and EDR


Important

The standard QCIs supported and qualified in the CUPS architecture are 1-9, 65, 66, 67, 69, 70, 80, 82, 83.

Limitations

The following are the known limitations of this feature:

  • Does not support the overall eMPS functionality.

  • If require ecs credit-control session-mode per-subscriber is configured, then URR is treated for entire subscriber session including secondary bearers which can lead to a problem in some applications. In CUPS, use the credit-control-client override session-mode per-sub-session command at the APN level to override the session mode configuration.

Configure QCI

Use the qci-qos-mapping CLI command to configure the DSCP marking for QCI. 


config 
   qci-qos-mapping name  
      qcinum { gbr }  [ { downlink | uplink } [ user-datagram dscp-marking dscp-marking-value ][ encaps-header { copy-inner | copy-outer | dscp-marking dscp-marking-value ] ] 
    end

NOTES:

  • qcinum : Specify standard QoS Class Identifier between 1-9, 65,66,67,69,70,80,82,83 - integer 1..83.

  • gbr: Specifies that this QCI type is Guaranteed Bit Rate (GBR).

  • downlink: Configures parameters for downlink traffic.

  • uplink: Configures parameters for uplink traffic.

  • encaps-header { copy-inner | copy-outer | dscp-marking dscp-marking-value} : Specifies that the DSCP marking must be set on the encapsulation header for IP-in-IP, GRE, or GTP encapsulation.

    • copy-inner : Specifies that the DSCP marking is to be acquired from the UDP headers within the encapsulation.

    • copy-outer used to copy the DSCP value coming in the data packet from S1u interface to the data packet sent on the S5 interface and vice-versa.

    • dscp-marking dscp-marking-value : Specifies that the DSCP marking is to be defined by this keyword.

      dscp-marking-value is expressed as a hexadecimal number from 0x00 through 0x3F.

  • user-datagram dscp-marking dscp-marking-value : Specifies that the IP DSCP marking is to be defined by this keyword.

    dscp-marking-value is expressed as a hexadecimal number from 0x00 through 0x3F.

Monitoring and Troubleshooting

This section provides information regarding monitoring and troubleshooting the feature.

Show Command(s) and/or Outputs

This section provides information regarding show commands and/or their outputs in support of this feature.

show subscribers saegw-only imsi <imsi>

The output of this command includes QCI field under Bearer QOS and PCRF Authorized Bearer QOS as shown in the following example:

Bearer QoS        :
   QCI      : 67
   ARP              : 0x054
   PCI              : 1 (Disabled)
   PL               : 5
   PVI              : 0 (Enabled)
   MBR Uplink(bps)  : 0                           MBR Downlink(bps)   : 0
   GBR Uplink(bps)  : 0                           GBR Downlink(bps)   : 0


PCRF Authorized Bearer QoS:
   QCI: 67
   ARP: 0x054
   PCI: 1 (Disabled)
   PL : 5
   PVI: 0 (Enabled)
   MBR uplink (bps): n/a                      MBR downlink (bps): n/a
   GBR uplink (bps): n/a                      GBR downlink (bps): n/a
   Uplink APN AMBR (bps): 200000              Downlink APN AMBR (bps): 300000

show apn statistics

The output of this command includes the following fields:

QCI 67:

  • Bearer Active

  • Bearer setup

  • Bearer Released

  • Bearer Rehected

  • Uplink Bytes forwarded

  • Downlink Bytes forwarded

  • Uplink pkts forwarded

  • Downlink pkts forwarded

  • Uplink Bytes dropped

  • Downlink Bytes dropped

  • Uplink pkts dropped

  • Downlink pkts dropped

  • Uplink Bytes dropped(MBR Excd)

  • Downlink Bytes dropped(MBR Excd)

  • Uplink pkts dropped(MBR Excd)

  • Downlink pkts dropped(MBR Excd) 

QCI 67:
    Bearer Active:                             0   Bearer setup:                                0
    Bearer Released:                           0   Bearer Rejected:                             0

    Uplink Bytes forwarded:                    0   Downlink Bytes forwarded:                    0
    Uplink pkts forwarded:                     0   Downlink pkts forwarded:                     0
    Uplink Bytes dropped:                      0   Downlink Bytes dropped:                      0
    Uplink pkts dropped:                       0   Downlink pkts dropped:                       0
    Uplink Bytes dropped(MBR Excd):            0   Downlink Bytes dropped(MBR Excd):            0
    Uplink pkts dropped(MBR Excd):             0   Downlink pkts dropped(MBR Excd):             0

show active-charging sessions full all

The output of this command includes the following fields:

Dynamic Charging Rule Definition(s) Configured:
Name                 Prior Content-Id Chrg-Type Rule Parameters
-------------------- ----- ---------- --------- ---------------------------
   mcptt_audio_rule9   129      13009      Both Gate Status:      Allow All
                                                QoS Class Identifier:    67
                                                ARP Priority Level:       2
                                                Reporting Level: Rating Grp
                                                Metering Method: Durn + Vol
                                                Uplink MBR:           49000
                                                Downlink MBR:         49000
                                                Uplink GBR:           49000
                                                Downlink GBR:         49000

show qci-qos-mapping table name name

The output of this command displays QCI 67 is configured in the qci-qos-mapping table . 

[local]qvpc-si# show qci-qos-mapping table
all       name
[local]qvpc-si# show qci-qos-mapping table name qci-qos1
QCI-QOS Table Name: qci-qos1
Qci:                  67
  uplink:   user-datagram dscp-marking 0x2e encaps-header dscp-marking 0x2e
  downlink: user-datagram dscp-marking 0x2e  encaps-header dscp-marking 0x2e
  pre-rel8-qos-mapping:  n/a         qci type:              gbr

Bulk Statistics

Run the following CLI to check the counters available for APN and SAEGW schema.

show bulkstats variables saegw | grep qci67

The following list of bulkstats variables are added in saegw schema.

  • sgw-totepsbearact-qci67

  • sgw-totepsbearset-qci67

  • sgw-totepsbearrel-qci67

  • sgw-totepsbearmod-qci67

  • sgw-totepsbearrel-dedrsn-pgw-qci67

  • sgw-totepsbearrel-dedrsn-slerr-qci67

  • sgw-totepsbearrel-dedrsn-s5err-qci67

  • sgw-totepsbearrel-dedrsn-s4err-qci67

Example:
[local]qvpc-si# show bulkstats variables saegw | grep qci67 
189	saegw	%sgw-totepsbearact-qci67%               Int32    0   Gauge
204	saegw	%sgw-totepsbearset-qci67%               Int32    0   Counter
221	saegw	%sgw-totepsbearrel-qci67%               Int32    0   Counter
236	saegw	%sgw-totepsbearmod-qci67%               Int32    0   Counter
252	saegw	%sgw-totepsbearrel-dedrsn-pgw-qci67%    Int32    0   Counter
269	saegw	%sgw-totepsbearrel-dedrsn-slerr-qci67%  Int32    0   Counter
285	saegw	%sgw-totepsbearrel-dedrsn-s5err-qci67%  Int32    0   Counter
301	saegw	%sgw-totepsbearrel-dedrsn-s4err-qci67%  Int32    0   Counter

Similarly, you can use the show bulkstats variables apn | grep qci67 command to view list of bulkstats variables in apn schema.