3 Definitions and abbreviations

23.1613GPPNetwork-Based IP Flow Mobility (NBIFOM)Release 17Stage 2TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 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 TR 21.905 [1].

Routing filter: A set of packet flow IP header parameter values/ranges used to identify IP flows for routing purposes.

Routing access type: Type of access network (e.g. 3GPP or WLAN) over which to route a set of IP flows of a PDN connection.

Routing Rule (RR): A set of information enabling the association of a routing filter with a routing access type.

NBIFOM: IP Flow Mobility based on network mobility protocols (GTP or PMIP).

UE-initiated NBIFOM: IP Flow Mobility based on network mobility protocols (GTP and PMIP) where the UE initiates the IP flow mobility.

Network-initiated NBIFOM: IP Flow Mobility based on network mobility protocols (GTP and PMIP) where the network initiates the IP flow mobility.

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

3.2 Abbreviations

For the purposes of the present document, the abbreviations given in 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 TR 21.905 [1].

MCM Multi-connection mode (as defined in TS 23.402 [2] clause 16)

NBIFOM Network-based IP flow mobility

RCLWI RAN Controlled WLAN Interworking

RR Routing Rule

SCM Single-connection mode (as defined in TS 23.402 [2] clause 16)

TSCM Transparent Single-connection mode (as defined in TS 23.402 [2] clause 16)