7.7.118 Extended Common Flags II
29.0603GPPGeneral Packet Radio Service (GPRS)GPRS Tunnelling Protocol (GTP) across the Gn and Gp interfaceRelease 17TS
The Extended Common Flags II element is used to hold values for multiple bit flags.
The PNSI (Pending Network Initiated PDN Connection Signalling Indication) bit field is relevant for the SGSN Context Response message and shall be set to 1 when there is pending network initiated PDN connection signalling for this PDN connection, i.e. the target SGSN shall set UASI flag to indicate to the GGSN that the UE is available for end to end signalling.
The DTCI (Delay Tolerant Connection Indication) bit field is relevant for the Create PDP Context Response message during the PDN connection creation procedure, and for SGSN Context Response/Forward Relocation Request message during inter SGSN mobility procedures. If this bit is set to 1, it indicates that the PDN connection is delay tolerant according to the local policies configured in the GGSN, e.g. per APN.For this PDN connection the GGSN supports receiving the rejection cause "UE is temporarily not reachable due to power saving" from the SGSN during a network initiated procedure and holding the network initiated procedure, until the GGSN receives the subsequent Update PDP Context Request message with the UASI flag from the SGSN indicating that the UE is available for end to end signalling.
The PMTSMI (Pending MT Short Message Indication) bit field is relevant for the SGSN Context Response/Forward Relocation Request message during inter SGSN/MME mobility procedures. If this bit is set to 1, it indicates to the target MME/SGSN that there is one (or more) pending MT Short Message(s) in the SMS-GMSC, i.e. that the target MME/SGSN shall provide its E.164 address and, if available, its Diameter Identity, to receive the MT Short Message and maintain the signalling connection with the UE for a longer time to enable the retransmission of the Short Message.
Bits marked as Spare shall be assigned the value 0 by the sending node and shall not be evaluated by the receiving node.
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Bits |
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Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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1 |
Type = 218 (decimal) |
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2 to 3 |
Length = n |
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4 |
Spare |
PMTSMI |
DTCI |
PNSI |
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5 to (n+3) |
These octet(s) is/are present only if explicitly specified |
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Figure 7.7.118-1: Extended Common Flags II