13 S103 Interface Specification
29.2763GPP3GPP Evolved Packet System (EPS)Optimized handover procedures and protocols between E-UTRAN access and cdma2000 HRPD AccessRelease 17Stage 3TS
13.1 Introduction
The S103 interface is defined between the Serving GW and HSGW and supports the forwarding of DL data during mobility from E-UTRAN to HRPD access networks. Signalling procedures on the S101 interface, documented in 3GPP TS 23.402 [2], are used to set up tunnels on the S103 user plane interface.
13.2 S103 Interface
The S103 interface protocol stack and signalling requirements are specified in 3GPP TS 23.402 [2]. The S103 interface shall use Generic Routing Encapsulation as specified in IETF RFC 2784 [4] including the Key and Sequence Number Extensions to GRE in IETF RFC 2890 [5]. The Key Field value of each GRE packet header shall uniquely identify the UE-PDN connection.
Annex A (informative):
Change history
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Change history |
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Date |
Meeting |
TDoc |
CR |
Rev |
Cat |
Subject/Comment |
New version |
|
2008-09 |
CT#41 |
CP-080477 |
V2.0.0 approved in CT#41 |
8.0.0 |
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|
2008-12 |
CT#42 |
CP-080693 |
0001 |
1 |
Adding references to the GTP-C specification for S101Revised from agreed version in C4-082683 |
8.1.0 |
|
|
0003 |
Private Extension IE in the Direct Transfer Request |
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|
0005 |
Path Management Messages and Version Not Supported Cause |
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|
0006 |
2 |
Reliable Delivery of Signalling MessagesWas agreed version of C4-082756 |
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|
0008 |
3 |
GRE Tunnel KeysRevised from agreed version C4-083145 |
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|
0009 |
2 |
S101 Sector ID |
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|
0011 |
S101 Session ID |
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|
0012 |
2 |
S101 interface messages and UEs |
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|
0013 |
Removal of APN Editor’s Notes |
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|
0014 |
Sorting of Type Fields |
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|
0015 |
DTR and NR IE restriction |
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|
0018 |
S Bit Removal |
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|
0019 |
Handover Required Indication from the MME |
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|
0021 |
HRPD air interface reference specification correction |
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|
0022 |
1 |
Recovery IE over S101 |
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|
2009-03 |
CT#43 |
CP-090053 |
0023 |
Editorial clean-up of S101 |
8.2.0 |
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|
0024 |
1 |
Making Session ID Generic and Adding Instance Value to the Messages |
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|
2009-09 |
CT#45 |
CP-090530 |
0031 |
1 |
Sequence Number to be 3 Octets and Removal of Header Extension |
8.3.0 |
|
|
2009-09 |
CT#45 |
CP-090562 |
0028 |
6 |
Emergency Session Id |
9.0.0 |
|
|
CP-090562 |
0030 |
2 |
Unauthenticated IMSI for emergency in S101 |
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|
2009-12 |
CT#46 |
CP-090764 |
0036 |
GRE Keys CR Misimplementation |
9.1.0 |
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|
0033 |
Adding the RTD information in UPLINK CDMA2000 TUNNELING |
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|
2010-03 |
CT#47 |
CP-100019 |
0038 |
1 |
Reference for HRPD Sector ID |
9.2.0 |
|
|
CP-100019 |
0041 |
1 |
Correcting Cause values for S101 |
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|
CP-100039 |
0039 |
1 |
EUTRAN Round Trip Delay Estimation Info |
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|
2010-06 |
CT#48 |
CP-100263 |
0043 |
Correction to 3GPP2 references |
9.3.0 |
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|
2010-07 |
Editorial correction to previous entry in history table |
9.3.1 |
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|
2010-09 |
CT#49 |
CP-100451 |
0044 |
1 |
Reference to GTPv2 |
9.4.0 |
|
|
2011-03 |
CT#51 |
CP-110071 |
0045 |
Correct the endpoint node of S103 tunnel |
10.0.0 |
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|
2011-06 |
CT#52 |
CP-110355 |
0051 |
1 |
IE Type Extandable Corrections |
10.1.0 |
|
|
2011-09 |
CT#53 |
CP-110567 |
0052 |
1 |
Conditional IE missing cause value |
10.2.0 |
|
|
2011-12 |
CT#54 |
CP-110790 |
0056 |
2 |
Handling of Extendable IEs |
10.3.0 |
|
|
2012-09 |
– |
– |
– |
– |
Automatic update from previous version 10.3.0 (MCC) |
11.0.0 |
|
|
2013-09 |
CT#61 |
CP-130470 |
0057 |
1 |
Path management messages over the S121 reference point |
12.0.0 |
|
|
0062 |
1 |
Definition of S121 Messages and Message Formats |
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|
0058 |
1 |
Security requirements for the S121 reference point |
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|
0059 |
1 |
Networking Technology for the S121 reference point |
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|
0060 |
1 |
Update scope to cover the S121 reference point |
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|
0061 |
1 |
Definition of S121 Message Header |
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|
0063 |
1 |
GTP-C message types for rSRVCC |
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|
2013-12 |
CT#62 |
CP-130635 |
0064 |
1 |
HRPD Sector ID definition |
12.1.0 |
|
|
2014-06 |
CT#64 |
CP-140250 |
0065 |
– |
HRPD Sector ID definition |
12.2.0 |
|
|
CP-140261 |
0066 |
1 |
Version Not Supported Indication |
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|
CP-140261 |
0067 |
1 |
Correct the handling of Restart Counter |
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|
2014-12 |
CT#66 |
CP-140972 |
0068 |
1 |
Removal of Optimized HO procedure from HRPD to EUTRAN |
12.3.0 |
|
|
2015-12 |
CT#70 |
– |
– |
– |
Update to Rel-13 version (MCC) |
13.0.0 |
|
|
2017-03 |
CT#75 |
– |
– |
– |
Update to Rel-14 version (MCC) |
14.0.0 |
|
|
2018-06 |
CT#80 |
– |
– |
– |
Update to Rel-15 version (MCC) |
15.0.0 |
|
|
2020-07 |
CT#88e |
– |
– |
– |
Update to Rel-16 version (MCC) |
16.0.0 |
|
|
2022-04 |
– |
– |
– |
– |
– |
Update to Rel-17 version (MCC) |
17.0.0 |