Glossary of 3GPP reference points, for letter W

3GPP Glossaries: Reference Points

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

| Wa | Wd | Wf | Wg | Wi | Wm | Wn | Wo | Wp | Wu | Ww | Wx | Wy | Wz |

Wa

between WLAN Access Network
and 3GPP AAA Proxy / Server

specified from Rel-6
Source: TS 23.234, clause 6.3.1

The AAA protocol on this reference point is used to transport authentication, authorization and charging data.

Wd

between 3GPP AAA Server
and 3GPP AAA Proxy

specified from Rel-6
Source: TS 23.234, clause 6.3.11

The purpose of the protocols crossing this reference point is to transport authentication, authorization and related information.

Wf

between 3GPP AAA Server
and OFCS

specified from Rel-6
Source: TS 23.234, clause 6.3.5

The Wf reference point is located between 3GPP AAA Server/Proxy and 3GPP Offline Charging System. The prime purpose of the protocols crossing this reference point is to transport/forward offline charging information towards 3GPP operator's Offline Charging System located in the visited network or home network where the subscriber is residing.

Wg

between 3GPP AAA Server / Proxy
and WAG

specified from Rel-6
Source: TS 23.234, clause 6.3.6

The functionality of this reference point is to provide information needed by the WAG to perform policy enforcement functions for authorised users and to transport per-tunnel based charging information from the WAG to the AAA Proxy in roaming scenarios.

Wi

between PDG
and PDN (Packet Data Network)

specified from Rel-6
Source: TS 23.234, clause 6.3.9

This is the reference point between the PDG and a packet data network. It may be an operator external public or private packet data network or an intra operator packet data network, e.g. for provision of IMS services.

Wm

between 3GPP AAA Server / Proxy
and PDG

specified from Rel-6
Source: TS 23.234, clause 6.3.10

The functionality of this reference point is to enable:

The 3GPP AAA Server/Proxy to retrieve tunnelling attributes and WLAN UE's IP configuration parameters from/via Packet Data Gateway
Carrying messages for service authentication and authorization
Carrying authentication data for the purpose of tunnel establishment, tunnel data authentication and encryption.

Wn

between WAG
and WLAN Access Network

specified from Rel-6
Source: TS 23.234, clause 6.3.7

The functionality of this reference point is to force traffic between a WLAN UE and PDG to go through the WAG.

Wo

between 3GPP AAA Server
and OCS

specified from Rel-6
Source: TS 23.234, clause 6.3.4

The Wo reference point is used by a 3GPP AAA Server to communicate with 3GPP Online Charging System (OCS). The prime purpose of the protocol(s) crossing this reference point is to transport online charging related information so as to perform credit control for the online charged subscriber.

Wp

between WAG
and PDG

specified from Rel-6
Source: TS 23.234, clause 6.3.8

The functionality of this reference point is to transport the Wu reference point protocol data packets.

Wu

between 3GPP WLAN UE
and PDG

specified from Rel-6
Source: TS 23.234, clause 6.3.12

The functionality of this reference point is to establish a tunnel between WLAN UE and PDG and to exchange data packets between WLAN UE and PDG.

Ww

between 3GPP WLAN UE
and WLAN Access Network

specified from Rel-6
Source: TS 23.234, clause 6.3.13

The functionality of this reference point is specified by IEEE and is outside the scope of 3GPP.

Wx

between 3GPP AAA Server
and HSS

specified from Rel-6
Source: TS 23.234, clause 6.3.2

The functionality of this reference point is to enable:

Retrieval of authentication vectors
Retrieval of WLAN access-related subscriber information (profile)
Registration of the 3GPP AAA Server of an authorised WLAN user in the HSS
Indication of change of subscriber profile
Retrieval of online charging / offline charging function addresses from HSS.
Retrieval of service related information

For more information see TS 23.234.

Wy

between PDG
and OCS

specified from Rel-6
Source: TS 23.234, clause 6.3.15

The Wy reference point is used by a PDG to communicate with an Online Charging System (OCS). The purpose of the protocol(s) crossing this reference point is to transport online charging related information about WLAN 3GPP IP Access so as to perform credit control for the online charged subscriber.

Wz

between PDG
and OFCS

specified from Rel-6
Source: TS 23.234, clause 6.3.16

The Wz reference point is used by a PDG to communicate with an Offline Charging System. The purpose of the protocol(s) crossing this reference point is to transport offline charging related information about WLAN 3GPP IP Access.