8.2.31 PFCPSMReq-Flags
29.2443GPPInterface between the Control Plane and the User Plane nodesRelease 17TS
The PFCPSMReq-Flags IE indicates flags applicable to the PFCP Session Modification Request message. It is coded as depicted in Figure 8.2.31-1.
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Bits |
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Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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1 to 2 |
Type = 49 (decimal) |
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3 to 4 |
Length = n |
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5 |
Spare |
Spare |
DETEID |
RUMUC |
SUMPC |
QAURR |
SNDEM |
DROBU |
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6 to (n+4) |
These octet(s) is/are present only if explicitly specified |
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Figure 8.2.31-1: PFCPSMReq-Flags
The following bits within Octet 5 shall indicate:
– Bit 1 – DROBU (Drop Buffered Packets): if this bit is set to "1", it indicates that the UP function shall drop all the packets currently buffered for the PFCP session, if any, prior to further applying the action specified in the Apply Action value of the FARs.
– Bit 2 – SNDEM (Send End Marker Packets): if this bit is set to "1", it indicates that the UP function shall construct and send End Marker packets towards the old F-TEID of the downstream node when switching to the new F-TEID.
– Bit 3 – QAURR (Query All URRs): if this bit is set to "1", it indicates that the UP function shall return immediate usage report(s) for all the URRs previously provisioned for this PFCP session.
– Bit 4 – SUMPC (Stop of Usage Measurement to Pause Charging): if this bit is set to "1", it indicates that the UP function shall stop the usage measurement for all URRs with the "ASPOC" flag set to "1".
– Bit 5 – RUMUC (Resume of Usage Measurement to Un-pause of Charging): if this bit is set to "1", it indicates that the UP function shall resume the usage measurement for all URRs with the "ASPOC" flag set to "1".
– Bit 6 – DETEID (Delete All DL N3mb and/or N19mb F-TEIDs): if this bit is set to "1", it indicates that the MB-UPF shall delete all NG-RAN N3mb DL F-TEIDs and all UPF N19mb DL F-TEIDs which were provisioned in Add MBS Unicast Parameters IEs for the MBS session (see clause 5.34.2.4).
– Bit 7 to 8 – Spare, for future use, shall be set to"0" by the sender and discarded by the receiver.
Bits 4 and 5 shall not be set both to "1".