8.2.76 OCI Flags

29.2443GPPInterface between the Control Plane and the User Plane nodesRelease 17TS

The OCI Flags IE shall contain the flags for overload control related information. It shall be encoded as shown in Figure 8.2.76-1.

Bits

Octets

8

7

6

5

4

3

2

1

1 to 2

Type = 110 (decimal)

3 to 4

Length = n

5

Spare

AOCI

6 to (n+4)

These octet(s) is/are present only if explicitly specified

Figure 8.2.76-1: OCI Flags

The following flags are coded within Octet 5:

– Bit 1 – AOCI: Associate OCI with Node ID: The UP function shall set this flag to "1" if it has included the "Overload Control Information" and if this information is to be associated with the Node ID (i.e. FQDN or the IP address used during the UP function selection) of the serving UP function. This flag shall be set to "1" by the UP function, if the "Overload Control Information" is included in the PFCP Session Establishment Response and the Cause IE is set to a rejection cause value.

– Bit 2 to 8: Spare, for future use and set to "0".