Information Element and AVP Support

The PDN attach and detach feature supports the following Information Element(IE):

  • Reporting Level IE for offline rules: ReportingLevel for dynamic rules is received from PCRF in Gx CCA-I. The other conditions are:

    • If ReportingLevel is not present for dynamic offline rule, then SMF considers reporting level based on the RG and service ID received:

      • if only RG received then reporting level is RatingGroupLevel

      • if both RG and ServiceID received then reporting level is ServiceIdentifierLevel

    • If ReportingLevel is present for dynamic offline rule, then the same is considered.

    Note
    The default offlineReportingLevel configuration is not applicable for Gz.

Handling Offline AVP for Dynamic Rules

The following table describes the function of offline AVPs for Dynamic rules.

Rule Level and Command Level AVPs
AVP

Description

Offline AVP in Gx CCR-I

The offline AVP present in Gx CCR-I indicates default configuration for offline charging method. If Gz is enabled, then offline AVP is set to enabled in Gx CCR-I. If not, it is set to disabled.

Offline AVP in Gx CCA -I/ CCA-U/ RAR

If Offline AVP at RULE level is present within charging rule definition, it defines offline charging method for the corresponding dynamic rule. If enabled, offline charging is done for corresponding dynamic rule. If disabled, offline charging is not done for the corresponding dynamic rule.

If offline AVP at RULE level is absent within charging rule definition, offline AVP at COMMAND level is considered to determine if offline charging method for dynamic rule is enabled or disabled

If Offline AVP is absent at RULE and COMMAND levels, the default offline charging method is applied for the dynamic rule. If Gz is enabled, the default offline charging method for dynamic rules is enabled. If not, default offline charging method is disabled.

Handling Offline Dynamic Rules when Gz is Disabled

If Gz is disabled in rulebase, no SDF and bearer level URR are created for offline dynamic rule.The table lists possible combination of input values.

Combination of Input Values
Gz enabled in Rulebase profile

Dynamic rule

has offline enabled

Offline URR

created in N4

TRUE

TRUE

TRUE

TRUE

FALSE

FALSE

FALSE

TRUE

FALSE

FALSE

FALSE

FALSE