PDU Session Information Frame IEs
The following table describes the Information Elements present in the PDU Session Information frame.
Information Element | Description |
---|---|
PDU Type |
The PDU Type indicates the structure of the PDU session UP frame. The field takes the value of the PDU Type it identifies: "0" for PDU Type 0. The PDU type is in bit 4 to bit 7 in the first octet of the frame. Value range: {0= DL PDU SESSION INFORMATION, 1=UL PDU SESSION INFORMATION, 2-15=reserved for future PDU type extensions} Field length: 4 bits |
Spare |
The spare field is set to "0" by the sender and should not be interpreted by the receiver. This field is reserved for later versions. Value Range: (0–2n-1) Field Length: n bits |
QoS Flow Identifier |
When this IE is present, this parameter indicates the QoS Flow Identifier of the QoS flow to which the transferred packet belongs. Value range: {0 to 2^6-1} Field length: 6 bits |
Padding |
The padding is included at the end of the frame to ensure that the PDU Session user plane protocol PDU length (including padding and the future extension) is (n*4– 2) octets, where n is a positive integer. Field Length: 0–3 octets. |