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Content for  TS 24.501  Word version:  18.0.1

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9.11.4.10  PDU addressp. 849

The purpose of the PDU address information element is to assign to the UE:
  • an IPv4 address associated with a PDU session;
  • an interface identifier for the IPv6 link local address associated with the PDU session; or
  • an IPv4 address and an interface identifier for the IPv6 link local address, associated with the PDU session.
This purpose of the PDU address information element is also to enable the W-AGF acting on behalf of the FN-RG to provide an interface identifier for the IPv6 link local address associated with the PDU session suggested to be allocated to the FN-RG, and to enable the SMF to provide SMF's IPv6 link local address to the W-AGF acting on behalf of the FN-RG.
The PDU address information element is coded as shown in Figure 9.11.4.10.1 and Table 9.11.4.10.1.
The PDU address is a type 4 information element with minimum length of 7 octets and a maximum length of 31 octets.
Reproduction of 3GPP TS 24.501, Fig. 9.11.4.10.1: PDU address information element
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PDU session type value (octet 3, bits 1 to 3)
Bits
3 2 1
0 0 1IPv4
0 1 0IPv6
0 1 1IPv4v6
All other values are reserved.
SI6LLA (SMF's IPv6 link local address) bit (octet 3, bit 4) (see NOTE)
0SMF's IPv6 link local address field is absent
1SMF's IPv6 link local address field is present
Bits 5 to 8 of octet 3 are spare and shall be coded as zero.
PDU address information (octet 4 to n)
If the PDU session type value indicates IPv4, the PDU address information in octet 4 to octet 7 contains an IPv4 address.
If the PDU session type value indicates IPv6, the PDU address information in octet 4 to octet 11 contains an interface identifier for the IPv6 link local address.
If the PDU session type value indicates IPv4v6, the PDU address information in octet 4 to octet 11 contains an interface identifier for the IPv6 link local address and in octet 12 to octet 15 contains an IPv4 address.
SMF's IPv6 link local address (octet n+1 to n+16)
SMF's IPv6 link local address field contains SMF's IPv6 link local address.
NOTE:
In the UE to network direction, the SI6LLA bit shall be set to "SMF's IPv6 link local address field is absent".
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9.11.4.11  PDU session typep. 850

The purpose of the PDU session type information element is to indicate type of the PDU session.
The PDU session type information element is coded as shown in Figure 9.11.4.11.1 and Table 9.11.4.11.1.
The PDU session type is a type 1 information element.
Reproduction of 3GPP TS 24.501, Fig. 9.11.4.11.1: PDU session type information element
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PDU session type value (octet 1, bit 1 to bit 3)
Bits
3 2 1
0 0 1IPv4
0 1 0IPv6
0 1 1IPv4v6
1 0 0Unstructured
1 0 1Ethernet
1 1 1reserved
All other values are unused and shall be interpreted as "IPv4v6", if received by the UE or the network.
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9.11.4.12  QoS flow descriptionsp. 851

The purpose of the QoS flow descriptions information element is to indicate a set of QoS flow descriptions to be used by the UE, where each QoS flow description is a set of parameters as described in subclause 6.2.5.1.1.4.
The QoS flow descriptions information element is a type 6 information element with a minimum length of 6 octets. The maximum length for the information element is 65538 octets.
The QoS flow descriptions information element is coded as shown in Figure 9.11.4.12.1, Figure 9.11.4.12.2, Figure 9.11.4.12.3, Figure 9.11.4.12.4, and Table 9.11.4.12.1.
Reproduction of 3GPP TS 24.501, Fig. 9.11.4.12.1: QoS flow descriptions information element
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Reproduction of 3GPP TS 24.501, Fig. 9.11.4.12.2: QoS flow description
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Reproduction of 3GPP TS 24.501, Fig. 9.11.4.12.3: Parameters list
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Reproduction of 3GPP TS 24.501, Fig. 9.11.4.12.4: Parameter
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QoS flow identifier (QFI) (bits 6 to 1 of octet 4)
QFI field contains the QoS flow identifier.
Bits
6 5 4 3 2 1
0 0 0 0 0 0no QoS flow identifier assigned
0 0 0 0 0 1QFI 1
to
1 1 1 1 1 1QFI 63
The network shall not set the QFI value to 0.
Operation code (bits 8 to 6 of octet 5)
Bits
8 7 6
0 0 1Create new QoS flow description
0 1 0Delete existing QoS flow description
0 1 1Modify existing QoS flow description
All other values are reserved.
E bit (bit 7 of octet 6)
For the "create new QoS flow description" operation, the E bit is encoded as follows:
0reserved
1parameters list is included
For the "Delete existing QoS flow description" operation, the E bit is encoded as follows:
0parameters list is not included
1reserved Bit
For the "modify existing QoS flow description" operation, the E bit is encoded as follows:
0extension of previously provided parameters
1replacement of all previously provided parameters
If the E bit is set to "parameters list is not included", the number of parameters field has zero value. If the E bit is set to "parameters list is included", the number of parameters field has non-zero value. If the E bit is set to "extension of previously provided parameters" or "replacement of all previously provided parameters", the number of parameters field has non-zero value. If the E bit is set to "extension of previously provided parameters" and one of the parameters in the new parameters list already exists in the previously provided parameters, the parameter shall be set to the new value.
Number of parameters (bits 6 to 1 of octet 6)
The number of parameters field contains the binary coding for the number of parameters in the parameters list field. The number of parameters field is encoded in bits 6 through 1 of octet 6 where bit 6 is the most significant and bit 1 is the least significant bit.
Parameters list (octets 7 to u)
The parameters list contains a variable number of parameters.
Each parameter included in the parameters list is of variable length and consists of:
  • a parameter identifier (1 octet);
  • the length of the parameter contents (1 octet); and
  • the parameter contents itself (variable amount of octets).
The parameter identifier field is used to identify each parameter included in the parameters list and it contains the hexadecimal coding of the parameter identifier. Bit 8 of the parameter identifier field contains the most significant bit and bit 1 contains the least significant bit. In this version of the protocol, the following parameter identifiers are specified:
  • 01H (5QI);
  • 02H (GFBR uplink);
  • 03H (GFBR downlink);
  • 04H (MFBR uplink);
  • 05H (MFBR downlink);
  • 06H (Averaging window); and
  • 07H (EPS bearer identity).
If the parameters list contains a parameter identifier that is not supported by the receiving entity the corresponding parameter shall be discarded.
The length of parameter contents field contains the binary coded representation of the length of the parameter contents field. The first bit in transmission order is the most significant bit.
When the parameter identifier indicates 5QI, the parameter contents field contains the binary representation of 5G QoS identifier (5QI) that is one octet in length.
5QI:
Bits
8 7 6 5 4 3 2 1
0 0 0 0 0 0 0 0Reserved
0 0 0 0 0 0 0 15QI 1
0 0 0 0 0 0 1 05QI 2
0 0 0 0 0 0 1 15QI 3
0 0 0 0 0 1 0 05QI 4
0 0 0 0 0 1 0 15QI 5
0 0 0 0 0 1 1 05QI 6
0 0 0 0 0 1 1 15QI 7
0 0 0 0 1 0 0 05QI 8
0 0 0 0 1 0 0 15QI 9
0 0 0 0 1 0 1 05QI 10
0 0 0 0 1 0 1 1
toSpare
0 1 0 0 0 0 0 0
0 1 0 0 0 0 0 15QI 65
0 1 0 0 0 0 1 05QI 66
0 1 0 0 0 0 1 15QI 67
0 1 0 0 0 1 0 0Spare
0 1 0 0 0 1 0 15QI 69
0 1 0 0 0 1 1 05QI 70
0 1 0 0 0 1 1 15QI 71
0 1 0 0 1 0 0 05QI 72
0 1 0 0 1 0 0 15QI 73
0 1 0 0 1 0 1 05QI 74
0 1 0 0 1 0 1 15QI 75
0 1 0 0 1 1 0 05QI 76
0 1 0 0 1 1 0 1
toSpare
0 1 0 0 1 1 1 0
0 1 0 0 1 1 1 15QI 79
0 1 0 1 0 0 0 05QI 80
0 1 0 1 0 0 0 1Spare
0 1 0 1 0 0 1 05QI 82
0 1 0 1 0 0 1 15QI 83
0 1 0 1 0 1 0 05QI 84
0 1 0 1 0 1 0 15QI 85
0 1 0 1 0 1 1 05QI 86
0 1 0 1 0 1 1 15QI 87
0 1 0 1 1 0 0 05QI 88
0 1 0 1 1 0 0 15QI 89
0 1 0 1 1 0 1 05QI 90
0 1 0 1 1 0 1 1
toSpare
0 1 1 1 1 1 1 1
1 0 0 0 0 0 0 0
toOperator-specific 5QIs
1 1 1 1 1 1 1 0
1 1 1 1 1 1 1 1Reserved
The network shall consider all other values not explicitly defined in this version of the protocol as unsupported.
If the UE receives a 5QI value (excluding the reserved 5QI values) that it does not understand, the UE shall choose a 5QI value from the set of 5QI values defined in this version of the protocol (see TS 23.501) and associated with:
  • GBR QoS flows, if the QoS flow includes a GFBR uplink parameter, a GFBR downlink parameter, a MFBR uplink parameter and a MFBR downlink parameter; and
  • non-GBR QoS flows, if the QoS flow does not include any one of a GFBR uplink parameter, a GFBR downlink parameter, a MFBR uplink parameter or a MFBR downlink parameter.
The UE shall use this chosen 5QI value for internal operations only. The UE shall use the received 5QI value in subsequent NAS signalling procedures.
When the parameter identifier indicates "GFBR uplink", the parameter contents field contains one octet indicating the unit of the guaranteed flow bit rate for uplink followed by two octets containing the value of the guaranteed flow bit rate for uplink.
Unit of the guaranteed flow bit rate for uplink (octet 1)
Bits
8 7 6 5 4 3 2 1
0 0 0 0 0 0 0 0value is not used (see NOTE 2)
0 0 0 0 0 0 0 1value is incremented in multiples of 1 Kbps
0 0 0 0 0 0 1 0value is incremented in multiples of 4 Kbps
0 0 0 0 0 0 1 1value is incremented in multiples of 16 Kbps
0 0 0 0 0 1 0 0value is incremented in multiples of 64 Kbps
0 0 0 0 0 1 0 1value is incremented in multiples of 256 Kbps
0 0 0 0 0 1 1 0value is incremented in multiples of 1 Mbps
0 0 0 0 0 1 1 1value is incremented in multiples of 4 Mbps
0 0 0 0 1 0 0 0value is incremented in multiples of 16 Mbps
0 0 0 0 1 0 0 1value is incremented in multiples of 64 Mbps
0 0 0 0 1 0 1 0value is incremented in multiples of 256 Mbps
0 0 0 0 1 0 1 1value is incremented in multiples of 1 Gbps
0 0 0 0 1 1 0 0value is incremented in multiples of 4 Gbps
0 0 0 0 1 1 0 1value is incremented in multiples of 16 Gbps
0 0 0 0 1 1 1 0value is incremented in multiples of 64 Gbps
0 0 0 0 1 1 1 1value is incremented in multiples of 256 Gbps
0 0 0 1 0 0 0 0value is incremented in multiples of 1 Tbps
0 0 0 1 0 0 0 1value is incremented in multiples of 4 Tbps
0 0 0 1 0 0 1 0value is incremented in multiples of 16 Tbps
0 0 0 1 0 0 1 1value is incremented in multiples of 64 Tbps
0 0 0 1 0 1 0 0value is incremented in multiples of 256 Tbps
0 0 0 1 0 1 0 1value is incremented in multiples of 1 Pbps
0 0 0 1 0 1 1 0value is incremented in multiples of 4 Pbps
0 0 0 1 0 1 1 1value is incremented in multiples of 16 Pbps
0 0 0 1 1 0 0 0value is incremented in multiples of 64 Pbps
0 0 0 1 1 0 0 1value is incremented in multiples of 256 Pbps
Other values shall be interpreted as multiples of 256 Pbps in this version of the protocol.
Value of the guaranteed flow bit rate for uplink (octets 2 and 3)
Octets 2 and 3 represent the binary coded value of the guaranteed flow bit rate for uplink in units defined by the unit of the guaranteed flow bit rate for uplink.
When the UE indicates subscribed GFBR for uplink, the "GFBR uplink" parameter is not included in the "Parameters list".
When the parameter identifier indicates "GFBR downlink", the parameter contents field contains one octet indicating the unit of the guaranteed flow bit rate for downlink followed by two octets containing the value of the guaranteed flow bit rate for downlink.
Unit of the guaranteed flow bit rate for downlink (octet 1)
The coding is identical to that of the unit of the guaranteed flow bit rate for uplink.
Value of the guaranteed flow bit rate for downlink (octets 2 and 3)
Octets 2 and 3 represent the binary coded value of the guaranteed flow bit rate for downlink in units defined by the unit of the guaranteed flow bit rate for downlink.
When the UE indicates subscribed GFBR for downlink, the "GFBR downlink" parameter is not included in the "Parameters list".
When the parameter identifier indicates "MFBR uplink", the parameter contents field contains the one octet indicating the unit of the maximum flow bit rate for uplink followed by two octets containing the value of maximum flow bit rate for uplink.
Unit of the maximum flow bit rate for uplink (octet 1)
The coding is identical to that of the unit of the guaranteed flow bit rate for uplink.
Value of the maximum flow bit rate for uplink (octets 2 and 3)
Octets 2 and 3 represent the binary coded value of the maximum flow bit rate for uplink in units defined by the unit of the maximum flow bit rate for uplink.
When the UE indicates subscribed MFBR for uplink, the "MFBR uplink" parameter is not included in the "Parameters list".
When the parameter identifier indicates "MFBR downlink", the parameter contents field contains one octet indicating the unit of the maximum flow bit rate for downlink followed by two octets containing the value of the maximum flow bit rate for downlink.
Unit of the maximum flow bit rate for downlink (octet 1)
The coding is identical to that of the unit of the guaranteed flow bit rate for uplink.
Value of the maximum flow bit rate for downlink (octets 2 and 3)
Octets 2 and 3 represent the binary coded value of the maximum flow bit rate for downlink in units defined by the unit of the maximum flow bit rate for downlink.
When the UE indicates subscribed MFBR for downlink, the "MFBR downlink" parameter is not included in the "Parameters list".
In this version of the protocol, for messages specified in the present document, the sending entity shall not request 0 kbps for both the maximum flow bit rate for downlink and the maximum flow bit rate for uplink at the same time. Any entity receiving a request for 0 kbps in both the maximum flow bit rate for downlink and the maximum flow bit rate for uplink shall consider that as a syntactical error (see clause 7).
When the parameter identifier indicates "averaging window", the parameter contents field contains the binary representation of the averaging window for both uplink and downlink in milliseconds and the parameter contents field is two octets in length.
When the parameter identifier indicates EPS bearer identity, the length of EPS bearer identity is one octet, bits 5 to 8 of the parameter contents contain the EPS bearer identity as specified in subclause 9.3.2 of TS 24.301 (see NOTE) and bits 1 to 4 of the parameter contents are spare and shall be coded as zero. The UE shall not include the EPS bearer identity parameter in any mobile originated 5GSM messages.
NOTE 1:
The total number of EPS bearer identities included in all QoS flow descriptions of a UE cannot exceed fifteen.
NOTE 2:
In this release of the specifications if received it shall be interpreted as value is incremented in multiples of 1 Kbps. In earlier releases of specifications, the interpretation of this value is up to implementation.
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