8.117 Paging and Service Information
29.2743GPP3GPP Evolved Packet System (EPS)Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C)Release 18Stage 3TS
The Paging and Service Information IE is used to carry per bearer paging and service information. It is coded as shown in Figure 8.117-1.
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Bits |
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Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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1 |
Type 186 (decimal) |
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2 to 3 |
Length = n |
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4 |
Spare |
Instance |
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5 |
Spare (all bits set to 0) |
EPS Bearer ID (EBI) |
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6 |
Spare |
PPI |
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m |
Spare |
Paging Policy Indication value |
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p to (n+4) |
These octet(s) is/are present only if explicitly specified |
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Figure 8.117-1: Paging and Service Information
The EBI field in octet 5 shall contain the value indicating the EPS Bearer ID for which the Paging and Service Information is provided. The EBI field shall be encoded as the EBI field in the EPS Bearer ID (EBI) IE type (see clause 8.8).
The PPI flag in octet 6 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 [65]).