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Ahmavaara, K.; Haverinen, H.; Pichna, R.; Communications Magazine, IEEE 11 , Nov. 2003

Integration of wireless LAN and 3G wireless - Interworking architecture between 3GPP and WLAN systems. Ahmavaara, K.; Haverinen, H.; Pichna, R.; Communications Magazine, IEEE 11 , Nov. 2003 報告者 : 洪英富. outline. WLAN system architecture

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Ahmavaara, K.; Haverinen, H.; Pichna, R.; Communications Magazine, IEEE 11 , Nov. 2003

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  1. Integration of wireless LAN and 3G wireless - Interworking architecture between 3GPP and WLAN systems Ahmavaara, K.; Haverinen, H.; Pichna, R.;Communications Magazine, IEEE 11 , Nov. 2003 報告者 : 洪英富

  2. outline • WLAN system architecture • 3GPP-based WLAN Access , Authentication and Authorization • User Data Routing and Access to Services • 3GPP-Based Charging for WLAN

  3. WLAN system architecture • WLAN terminal • Layer 2 distribution network • DNS • DHCP • AAA server / proxy • Billing system • Http server • Gateway NAPT

  4. WLAN system architecture

  5. WLAN system architecture(3GPP Subscription for WLAN) • SIM/USIM • HSS

  6. 3GPP-Base WLAN Access Authentication and Authorization • IEEE 802.11i • EAP SIM :authentication and key agreement protocol base on GSM • EAP AKA :encapsulates the UMTS Authentication and Key Agreement within EAP

  7. User Data Routing and Access to Services • The technical architecture regarding user data routing has not been agreed on in 3GPP • IP network selection : W-APN ,similar to the APN parameter used in GPRS • PDG : terminates the tunnel and acts as a gateway to the selected remote IP network • WAG : implement tunneling • Wn , Wp , Wu , W i : data plane • Wg , Wm : control plane

  8. User Data Routing and Access to Services

  9. 3GPP-Based Charging for WLAN • Two different charging methods : (1)postpaid (2)prepaid : • CG : for postpaid , The charging information collection happens via so-callde charging gateway (CG) • OCS : online charging system for prepaid

  10. 3GPP-Based Charging for WLAN • ..

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