Sxa

Sxb

Sxc

N4

N4mb

Cause

M

This IE shall indicate the acceptance or the rejection of the corresponding request message.

X

X

X

X

X

Cause

Offending IE

C

This IE shall be included if the rejection is due to a conditional or mandatory IE missing or faulty.

X

X

X

X

X

Offending IE

Load Control Information

O

The UP function may include this IE if it supports the load control feature and the feature is activated in the network.

See Table 7.5.3.3-1.

X

X

X

X

X

Load Control Information

Overload Control Information

O

During an overload condition, the UP function may include this IE if it supports the overload control feature and the feature is activated in the network.

See Table 7.5.3.4-1.

X

X

X

X

X

Overload Control Information

Usage Report

C

This IE shall be present if a URR had been provisioned in the UP function for the PFCP session being deleted and traffic usage measurements for that URR are available at the UP function.

Several IEs within the same IE type may be present to represent a list of Usage Reports.

X

X

X

X

–

Usage Report

Additional Usage Reports Information

C

This IE shall be included if the usage reports need to be sent in additional PFCP Session Report Request messages (see clause 5.2.2.3.1).

When present, this IE shall either indicate that additional usage reports will follow, or indicate the total number of usage reports that need to be sent in PFCP Session Report Request messages.

X

X

X

X

–

Additional Usage Reports Information

Packet Rate Status Report

C

This IE shall be present if the CP function has requested in a QER to report the packet rate status when the PFCP session is released and the UP function supports CIOT feature. (See clause 8.2.25)

–

X

–

X

–

Packet Rate Status Report

Session Report

C

This IE shall be present if a SRR for QoS monitoring had been provisioned in the UP function for the PFCP session being deleted and QoS monitoring measurements for that SRR are available at the UP function. See Table 7.5.8. 6-1.

Several IEs within the same IE type may be present to represent a list of Session Reports.

–

–

–

X

–

Session Report

MBS Session N4 Information

C

This IE shall be included if any IE in this grouped IE needs to be included as specified in clause 5.34.1.

Several IE with the same IE type may be present to contain N4 Information for several MBS Sessions.

See Table 7.5.3.1-5 for encoding.

–

–

–

X

–

MBS Session N4 Information

PFCPSDRsp-Flags

C

This IE shall be included if at least one of the flags is set to "1".

– PURU (Pending Usage Reports Unacknowledged): the UP function shall set this flag if the UP function has pending PFCP Session Report Request messages which have not been acknowledged yet when it sends the PFCP Session Deletion Response message.

X

X

X

X

–

PFCPSDRsp-Flags

Octets 3 and 4

Length = n

Information elements

P

Condition / Comment

Appl.

IE Type

Sxa

Sxb

Sxc

N4

N4mb

QER ID

M

This IE shall uniquely identify a QER in a PFCP session.

–

X

–

X

–

QER ID

Packet Rate Status

M

This IE shall indicate the remaining validity time and the remaining number of UL/DL packets that still can be sent.

–

X

–

X

–

Packet Rate Status

Octets 3 and 4

Length = n

Information elements

P

Condition / Comment

Appl.

IE Type

Sxa

Sxb

Sxc

N4

N4mb

URR ID

M

This IE shall identify the URR for which usage is reported.

X

X

X

X

–

URR ID

UR-SEQN

M

This IE shall uniquely identify the Usage Report for the URR (see clause 5.2.2.3).

X

X

X

X

–

UR-SEQN

Usage Report Trigger

M

This IE shall identify the trigger for this report.

X

X

X

X

–

Usage Report Trigger

Start Time

C

This IE shall be present, except if the Usage Report Trigger indicates ‘Start of Traffic’, ‘Stop of Traffic’ or ‘MAC Addresses Reporting’.

When present, this IE shall provide the timestamp when the collection of the information in this report was started.

X

X

X

X

–

Start Time

End Time

C

This IE shall be present, except if the Usage Report Trigger indicates ‘Start of Traffic’, ‘Stop of Traffic’ or ‘MAC Addresses Reporting’.

When present, this IE shall provide the timestamp when the collection of the information in this report was generated.

X

X

X

X

–

End Time

Volume Measurement

C

This IE shall be present if a volume needs to be reported.

X

X

X

X

–

Volume Measurement

Duration Measurement

C

This IE shall be present if a duration measurement needs to be reported.

X

X

X

X

–

Duration Measurement

Time of First Packet

C

This IE shall be present if available for this URR.

–

X

X

X

–

Time of First Packet

Time of Last Packet

C

This IE shall be present if available for this URR.

–

X

X

X

–

Time of Last Packet

Usage Information

C

This IE shall be present if the UP function reports Usage Reports before and after a Monitoring Time, or before and after QoS enforcement. When present, it shall indicate whether the usage is reported for the period before or after that time, or before or after QoS enforcement.

X

X

X

X

–

Usage Information

Ethernet Traffic Information

C

This IE shall be present if Ethernet Traffic Information needs to be reported. See Table 7.5.8.3-3.

–

–

–

X

–

Ethernet Traffic Information