Custom IEs at PCF

The PCF sends the custom IE "QosGroupRuleDefinition" in SmPolicyDecision attribute to the SMF. This IE comprises QosGroupRuleName, refQosGroupQosData, FlowStatus, and Precedence attributes.

PCF triggers “Add/Update QGR” by sending QosGroupRuleName as key and QosGroupRuleDefinition as value (with all attributes) in QGRDefs map.

For QGR removal, PCF triggers “Remove QGR” by sending QosGroupRuleName as key and the value is set to NULL.

The following tables list the custom IEs that are sent by the PCF.

SmPolicyDecision Attribute

Attribute name

Data type

P

Cardinality

Description

Applicability

qosGroupQosData

Map(QosGroupQosData)

O

1..N

A map of qosGroupQosInfo with the content being the QosGroupQosData.

qosGroupQosInfo

qosGroupRuleDefs

Map(QosGroupRuleDef)

O

1..N

A map of QosGroupOfRuledefs with the content being the QosGroupRule Definition.

QosGroupRuleDef Attribute
Attribute name Data type P Cardinality Description Applicability
qosGroupRuleId string M 1 Uniquely identifies the Qos Group of Ruledef (QGR) configured at SMF
refQosGroupQosData string M 1 A reference to QosGroupQosData
flowStatus FlowStatus O 0..1

Describes whether the IP Flows are enabled or disabled.

Possible values: Enabled uplink, Enabled downlink, Enabled, Disabled, Removed

Default value "Enabled" is applied.

precedence Uinteger M 0..1 Describes the priority of the Qos Group of Ruledef identified with QosGroupRuleName.
QosGroupQoSData Attribute
Attribute Name Data type P Cardinality Description Applicability
qosId String M 1

Univocally identifies the QoSGroupQosData

maxbrDL BitRateRm M Indicates the maximum bandwidth in downlink.
maxbrUL BitRateRm M Indicates the maximum bandwidth in uplink.
mbrBurstSizeUL MaxDataBurstVol O Describes the amount of data that can be sent at peak rate in uplink
mbrBurstSizeDL MaxDataBurstVol O Describes the amount of data that can be sent at peak rate in downlink
mbrConformActionUL RateLimitAction O Describes the ratelimiting action to be taken as long as traffic stays within maxbitrate in uplink.
mbrConformActionDL RateLimitAction O Describes the ratelimiting action to be taken as long as traffic stays within maxbitrate in downlink.
mbrExceedActionUL RateLimitAction O Describes the ratelimiting action to be taken if traffic exceeds maxbitrate in uplink.
mbrExceedActionDL RateLimitAction O Describes the ratelimiting action to be taken if traffic exceeds maxbitrate in downlink.
RateLimitAction Attribute
Attribute Name Data type P Cardinality Description Applicability
action Action M

Describes the ratelimiting action.

Enum Action with possible values: ALLOW, DROP,MARK_DSCP

tosTrafficClass string C

Contains the IPv4 Type-of-Service and mask field or the IPv6 Traffic-Class field and mask field.

tosTrafficClass IE is present only in case action IE has value MARK_DSCP.