8.2.156 PMF Control Information
29.2443GPPInterface between the Control Plane and the User Plane nodesRelease 17TS
The PMF Control Information IE shall provide details of the required PMF functionality. It shall be encoded as shown in Figure 8.2.156-1.
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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 = 224 (decimal) |
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3 to 4 |
Length = n |
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5 |
Spare |
PQPM |
DRTTI |
PMFI |
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6 |
Number of QFI (=p) |
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7 |
value of QFI 1 |
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8 |
value of QFI 2 |
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… |
… |
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7-(7+p-1) |
value of QFI p |
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m to (n+4) |
These octet(s) is/are present only if explicitly specified |
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Figure 8.2.156-1: PMF Control Information
The following flags are coded within Octet 5:
– Bit 1 – PMFI: If this bit is set to "1", it indicates that the PMF functionality is required and the UPF shall allocate relevant resource as specified in 5.20.3.1.
– Bit 2 – DRTTI (Disallow PMF RTT Indication): If this bit is set to "1", it indicates that PMF RTT measurements are not allowed. This bit shall be set to "1" if the UE does not support PMF RTT measurements (i.e. if the UE supports MPTCP with any steering mode and ATSSS-LL with only the Active-Standby steering mode, see clauses 5.32.2 and 5.32.5.1 of 3GPP TS 23.501 [28]).
– Bit 3 – PQPM (Per QoS flow Performance Measurement indication): If this bit is set to "1", it indicates that per QoS flow access performance measurement is applicable to this PDU session. A list of QFI values shall be present to indicate a list of QoS flows over which access performance measurement may be performed.
– Bit 4 to 8 Spare, for future use and set to "0".
The Number of QFI shall indicate the total number of the QFI values. Each subsequent Octet after the Number of QFI shall carry one QFI value (i.e. the Octet 5 of the QFI IE, as specified in clause 8.2.89).