7.7.121 SCEF PDN Connection
29.0603GPPGeneral Packet Radio Service (GPRS)GPRS Tunnelling Protocol (GTP) across the Gn and Gp interfaceRelease 17TS
The SCEF PDN Connections IE is coded as depicted in Figure 7.7.121-1 below. This IE contains information related to the SCEF PDN connection for a UE that are necessary to transfer between SGSNs at Inter SGSN Routeing Area Update procedure or PS Handover procedure.
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Bits |
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Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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|
1 |
Type = 221 (Decimal) |
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|
2-3 |
Length=n |
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|
4 |
APN Length |
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5-m |
APN |
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(m+1)-(m+2) |
Spare |
Spare |
Spare |
Spare |
NSAPI |
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|
(m+3)-(m+4) |
SCEF-ID Length |
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(m+5)-(m+p) |
SCEF-ID |
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(m+p+1)-(n+3) |
These octet(s) is/are present only if explicitly specified |
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Figure 7.7.121-1: SCEF PDN Connection Information Element
The encoding the APN field follows 3GPP TS 23.003 [2] clause 9.1. The content of the APN field shall be the full APN with both the APN Network Identifier and APN Operator Identifier being present as specified in 3GPP TS 23.003 [2] clauses 9.1.1 and 9.1.2, 3GPP TS 23.060 [35] Annex A and 3GPP TS 23.401 [3] clauses 4.3.8.1.
The NSAPI identifies the default bearer of the SCEF PDN Connection.
The SCEF-ID is the SCEF-ID in use in the old SGSN.