3 Definitions, symbols and abbreviations

24.1613GPPNetwork-Based IP Flow Mobility (NBIFOM)Release 17Stage 3TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].

3GPP access is unusable: the UE detects that usage of 3GPP access is prevented based on a UE implementation specific mechanism.

3GPP access is usable: 3GPP access is not unusable.

WLAN access is unusable: the UE detects that usage of the WLAN access is prevented based on a UE implementation specific mechanism.

WLAN access is usable: WLAN access is not unusable.

Multi-access PDN connection: A PDN connection whose IP flows can be routed over either a 3GPP access or a WLAN access or both. At any single time, each IP flow is only routed over one access.

For the purposes of the present document, the following terms and definitions given in 3GPP TS 24.302 [5] apply:

3GPP AAA server

RAN rules

TWAG

For the purposes of the present document, the following terms and definitions given in 3GPP TS 24.301 [4] apply:

A/Gb mode

Iu mode

S1 mode

3.2 Abbreviations

For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].

APN Access Point Name

EAP Extensible Authentication Protocol

E-UTRAN Evolved Universal Terrestrial Radio Access Network

ePDG Evolved Packet Data Gateway

GERAN GSM EDGE Radio Access Network

GTP GPRS Tunnelling Protocol

IE Information Element

MCM Multi-connection mode

MME Mobility Management Entity

NBIFOM Network-based IP flow mobility

PDN Packet Data Network

PDN GW Packet Data Network Gateway

PDP Packet Data Protocol

PMIP Proxy Mobile IP version 6

SCM Single-connection mode

SGSN Serving GPRS Support Node

TWAG Trusted WLAN Access Gateway

UE User Equipment

UTRAN UMTS Terrestrial Radio Access Network

WLAN Wireless Local Area Network

WLCP Wireless LAN control plane protocol