3 Definitions and abbreviations

23.1393GPP3GPP system - fixed broadband access network interworkingRelease 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].

3GPP Femto: Refers to the HNB and HeNB NEs as defined by 3GPP. The HNB GW is always required for the HNB architecture while the HeNB GW is option for the HeNB.

UE local IP address is defined as: either the public IP address assigned to the UE connected to a BBF access network via a WLAN by the BBF domain in the no-NAT case, or the public IP address assigned by the BBF domain to the NATed RG that is used for this UE.

H(e)NB local IP address is defined as: either the public IP address assigned to the H(e)NB by the BBF domain in the no-NAT case, or the public IP address assigned by the BBF domain to the NATed RG that is used for this H(e)NB.

Non-seamless WLAN offload (NSWO) is a capability of a UE supporting routing specific IP flows over the WLAN access without traversing the EPC as defined in TS 23 402 [3], clause 4.1.5.

EPC-routed: User plane traffic that is routed via a PDN GW in EPC as part of a PDN Connection. EPC-routed applies to non-roaming, roaming with traffic home-routed and roaming with traffic local break-out cases.

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].

ANDSF Access Network Discovery and Selection Function

AF Application Function

BBF Broadband Forum

BRAS Broadband Remote Access Server

BNG Broadband Network Gateway

BPCF Broadband Policy Control Function

DSCP Differentiated Services (Diffserv) Code Point

DSMIPv6 Dual-Stack MIPv6

EPC Evolved Packet Core

ePDG Evolved Packet Data Gateway

EPS Evolved Packet System

H‑ANDSF Home-ANDSF

MME Mobility Management Entity

NSWO Non-seamless WLAN offload

PCRF Policy and Charging Rules Function

P‑GW PDN Gateway

PMIP/PMIPv6 Proxy Mobile IP version 6

RG Residential Gateway

SeGW Security Gateway

S‑GW Serving GW

TDF Traffic Detection Function

V‑ANDSF Visited-ANDSF