ASB WLAN/GPRS Seamless Roaming Solution
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Shanghai Bell Alcatel WLAN / GPRS solution for seamless roaming through the WLAN and mobile network coupled manner, the WLAN technology and mobile network technology integration, WLAN and GPRS networks to achieve seamless roaming. Network structure is as
The WLAN / GPRS seamless roaming solution consists of three parts: WAS (WLAN Access Server), iGGSN and the MIC.
1. WAS (WLAN Access Server) / MDS
WAS is based on the ASB MDS platform (Mult-access Data Server) developed for WLAN and GPRS to achieve seamless access to the server. WAS has been deployed in the mobile operator's network, and as a mobile hotspot gateway between mobile networks, WLAN and mobile networks to link the main node. WAS is also used to centrally store user data files, users of WLAN and GPRS to provide a unique user subscription information.
Static data: the user signing, access / service attributes
Dynamic Data: active, access location, etc.
WAS1.1 product features:
EAP-SIM authentication
Web-based authentication
Session Control
connection HLR
scratch card bill after use
SMS-based business
supports roaming users (AAA protocol)
support Radius VSA
billing functions
support WPA (802.11i)
2. MIC (Multi-access Intelligent Client)
MIC is a client software for automatic detection, identification, and select the best wireless access technology.
3. IGGSN (Intelligent Gateway GPRS Support Node)
iGGSN is GPRS or 3G core network of intelligent packet core network GGSN, the GGSN in addition to basic functions, but also to achieve the contents of the data service billing function.
Main advantages:
support from WLAN to GPRS / UMTS to seamlessly switch between;
flexible authentication methods, and ensure secure access to support WEB-based and SIM-based authentication methods; and support for Intranet users access the network through a VPN;
just a billing account;
be content with iGGSN powerful billing capabilities, to ensure that the operators in the IP data services on the return.
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