8.2.27 Downlink Data Service Information
29.2443GPPInterface between the Control Plane and the User Plane nodesRelease 17TS
The Downlink Data Service Information IE is used to carry downlink data service information. It is coded as shown in Figure 8.2.27-1.
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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 = 45 (decimal) |
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3 to 4 |
Length = n |
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5 |
Spare |
QFII |
PPI |
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|
m |
Spare |
Paging Policy Indication value |
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p |
Spare |
QFI |
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|
q to (n+4) |
These octet(s) is/are present only if explicitly specified |
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Figure 8.2.27-1: Downlink Data Service Information
The PPI flag in octet 5 indicates whether the Paging Policy Indication value in octet "m" shall be present. If PPI is set to "1", then the Paging Policy Indication value shall be present. If PPI is set to "0", then octet "m" shall not be present.
The Paging Policy Indication value, in octet "m", shall be encoded as the DSCP in TOS (IPv4) or TC (IPv6) information received in the IP payload of the GTP-U packet from the PGW (see IETF RFC 2474 [13]).
The QFII flag in octet 5 indicates whether the QFI value in octet "p" shall be present. If QFII is set to "1", then the QFI value shall be present. If QFII is set to "0", then octet "p" shall not be present.
The QFI value, in octet "p", shall be encoded as the octet 5 of the QFI IE in clause 8.2.89.