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3GPP Glossaries

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Interfaces / Reference Points

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between  WLAN Access Network  and  3GPP AAA Proxy / Server

specified from  Rel-6
Source:   TS 23.002, clause 6a.9.2 

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

For more information see TS 23.234.

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between  3GPP AAA Server  and  3GPP AAA Proxy

specified from  Rel-6
Source:   TS 23.002, clause 6a.9.3 

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

For more information see TS 23.234.

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between  3GPP AAA Server / Proxy  and  WAG

specified from  Rel-6
Source:   TS 23.002, clause 6a.9.4 

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.

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between  PDG  and  PDN (Packet Data Network) 

specified from  Rel-6
Source:   TS 23.002, clause 6a.9.5 

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.

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between  3GPP AAA Server / Proxy  and  PDG

specified from  Rel-6
Source:   TS 23.002, clause 6a.9.6 

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.

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between  WAG  and  WLAN Access Network 

specified from  Rel-6
Source:   TS 23.002, clause 6a.9.7 

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

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between  WAG  and  PDG

specified from  Rel-6
Source:   TS 23.002, clause 6a.9.8 

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

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between  3GPP WLAN UE  and  PDG

specified from  Rel-6
Source:   TS 23.002, clause 6a.9.9 

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.

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between  3GPP WLAN UE  and  WLAN Access Network 

specified from  Rel-6
Source:   TS 23.002, clause 6a.9.10 

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

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between  3GPP AAA Server  and  HSS

specified from  Rel-6
Source:   TS 23.002, clause 6a.9.11 

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.

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