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3GPP Glossaries

Features and Services

Network entities

Interfaces / Reference Points

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Interfaces / Reference Points

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#  Wa     #  Wd     #  Wg     #  Wi     #  Wm     #  Wn     #  Wp     #  Wu     #  Ww     #  Wx    

 

Wa


between  WLAN Access Network  and  3GPP AAA Proxy / Server

[R6]+

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

For more information see TS 23.234.

Source:   TS 23.002, clause 6a.9.2

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Wd


between  3GPP AAA Server  and  3GPP AAA Proxy

[R6]+

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

For more information see TS 23.234.

Source:   TS 23.002, clause 6a.9.3

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Wg


between  3GPP AAA Server / Proxy  and  WAG

[R6]+

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.

Source:   TS 23.002, clause 6a.9.4

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Wi


between  PDG  and  PDN (Packet Data Network) 

[R6]+

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.

Source:   TS 23.002, clause 6a.9.5

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Wm


between  3GPP AAA Server / Proxy  and  PDG

[R6]+

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.
For more information see TS 23.234.

Source:   TS 23.002, clause 6a.9.6

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Wn


between  WAG  and  WLAN Access Network 

[R6]+

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

Source:   TS 23.002, clause 6a.9.7

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Wp


between  WAG  and  PDG

[R6]+

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

Source:   TS 23.002, clause 6a.9.8

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Wu


between  3GPP WLAN UE  and  PDG

[R6]+

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.

Source:   TS 23.002, clause 6a.9.9

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Ww


between  3GPP WLAN UE  and  WLAN Access Network 

[R6]+

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

Source:   TS 23.002, clause 6a.9.10

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Wx


between  3GPP AAA Server  and  HSS

[R6]+

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.

Source:   TS 23.002, clause 6a.9.11

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