Stephenson is optimistic about the future of Wi-Fi roaming, which should help carriers offload the growing volumes of data from their cellular networks and keep offering the roaming capability that subscribers are used to. He knows how much work has been required to make that possible, having been involved in several parts of the effort.
The Hotspot 2.0 group built on IEEE 802.11u, a mechanism for automatic handoffs under the 802.11 Wi-Fi standard that was developed starting in 2005, another project Stephenson was involved in. The 802.11u specification gives Wi-Fi network operators a standard way to automatically tell mobile devices about their roaming relationships, Stephenson said. With that information, a device can join the network using whatever credentials it may have for one of those networks.
Hotspot 2.0 combined that capability with other components including security, defining a way to protect all sessions on a hotspot using standard Wi-Fi encryption. Last June, the Wi-Fi Alliance used the complete Hotspot 2.0 standard to set up its Passpoint certification program, in which it tests and certifies Wi-Fi devices for interoperability under the standard.
via WiFi News by WiFiNovation | Scoop.it More READ
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