8.2.77 PFCP Association Release Request

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

The PFCP Association Release Request IE shall be encoded as shown in Figure 8.2.77-1.

Bits

Octets

8

7

6

5

4

3

2

1

1 to 2

Type = 111 (decimal)

3 to 4

Length = n

5

Spare

URSS

SARR

6 to (n+4)

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

Figure 8.2.77-1: PFCP Association Release Request

The following flags are coded within Octet 5:

– Bit 1 – SARR (PFCP Association Release Request): If this bit is set to "1", then the UP function requests the release of the PFCP association.

– Bit 2 – URSS (non-zero Usage Reports for the affected PFCP Sessions Sent): If this bit is set to "1", it indicates that the UP function has sent all the non-zero usage reports to the CP function for all PFCP essions affected by the PFCP Association Release.

– Bit 3 to 8: Spare, for future use and set to "0".