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Content for  TS 23.261  Word version:  18.0.0

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1  Scopep. 5

This document specifies the Stage 2 system description for IP flow mobility between a 3GPP and a WLAN. The technical solution is based on the working principles of DSMIPv6 [2] and it is applicable to both the Evolved Packet System and the I-WLAN mobility architecture.
The specification covers the system description of seamless WLAN offload and IP flow mobility between 3GPP and WLAN as well as the respective interactions with the PCC and ANDSF frameworks. The system description for non seamless WLAN offload is covered in TS 23.402.
This document specifies also the detailed extensions to S2c [3] and H1 [4] reference points for IP flow mobility. The extensions to the PCC and to the ANDSF framework are specified respectively in TS 23.203 and in TS 23.402.
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2  Referencesp. 5

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
RFC 5555  (June 2009): "Mobile IPv6 support for dual stack Hosts and Routers (DSMIPv6)".
[3]
TS 23.402: "Architecture enhancements for non-3GPP accesses".
[4]
TS 23.327: "Mobility between 3GPP-Wireless Local Area Network (WLAN) interworking and 3GPP systems".
[5]
TS 23.203: "Policy and Charging Control architecture".
[6]
RFC 4877  (April 2007): "Mobile IPv6 Operation with IKEv2 and the Revised IPsec Architecture".
[7]
RFC 5648  (October 2009): "Multiple Care-of Addresses Registration".
[8]
RFC 6089  (January 2011): "Flow Bindings in Mobile IPv6 and Network Mobility (NEMO) Basic Support".
[9]
TS 23.234: "3GPP System to Wireless Local Area Network (WLAN) Interworking; System Description".
[10]
TS 23.401: "General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access".
[11]
TS 23.060: "General Packet Radio Service (GPRS); Service description; Stage 2".
[12]
RFC 6088  (January 2011): "Traffic Selectors for Flow Bindings".
[13]
RFC 5846  (June 2010): "Binding Revocation for IPv6 Mobility".
[14]
RFC 6275  (July 2011): "Mobility Support in IPv6".
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3  Definitions and abbreviationsp. 6

3.1  Definitionsp. 6

For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply.
The following terms used in this Technical Specification are defined in RFC 6275:
Home Address,
Care-of Address,
binding cache,
binding cache entry.
The following terms used in this Technical Specification are defined in TS 23.402:
Home network prefix.
Home Agent:
The Home Agent functionality consists in the DSMIPv6 anchor point functionality described in RFC 5555 and in RFC 4877 and the extensions defined in RFC 5648 and RFC 6089. As per TS 23.402, the HA functionality is located in the PDN Gateway. As per TS 23.327 the HA functionality can be either a standalone entity or co-located with the GGSN or with the PDG.
Local Operating Environment Information:
This is a set of implementation specific parameters which describe the local environment in which the UE is operating.
routing address:
A routable IP address. In DSMIPv6 this is either the CoA (visited link case) or the HoA (in home link case).
routing filter:
A set of packet flow IP header parameter values/ranges used to identify one or more IP flows for routing purposes.
routing rule:
The association of a routing filter with a routing address.
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3.2  Abbreviationsp. 6

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply.
BID
Binding Identifier
CoA
Care-of Address
DSMIPv6
Dual-Stack Mobile IPv6
EPC
Evolved Packet Core
ePDG
Evolved Packet Data Gateway
EPS
Evolved Packet System
FID
Flow Identifier
GW
Gateway
HA
Home Agent
HoA
Home Address
UE
User Equipment

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