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Part 9: wlan – umts interworking – Siemens IEEE802.11 User Manual

Page 74

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WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt

Page 74

© Siemens, 2002

Part 9: WLAN – UMTS Interworking

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UMTS and Wireless LAN are different

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WLAN – UMTS Interworking: Ancient approach: ‚tight coupling‘

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WLAN as an exension of a mobile network

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WLAN is much cheaper than 2G/3G

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Conclusions for Mobile Network Operators

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WLAN – UMTS Interworking: Now widely accepted: ‚loose coupling‘

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WLAN loosely coupled to a Mobile Network

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E.g.: Web based authentication and mobile network security

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Standards for WLAN – UMTS Interworking