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Smartphone users' requirements for data plans from mobile network access services have become individualized. To cope with users' requirements, global mobile network operators have been replacing flat-rate data plans with tiered data plans in the mobile market. In addition, mobile virtual network operators who provide data plans to their own customers at retail prices have emerged in the mobile market...
Wireless LAN (WLAN) access points (APs) are being installed widely and densely in urban areas as a means of traffic offload for mobile communication terminals such as smartphones. WLAN access can be used in home, office, shopping malls, airports and even in train stations (especially in Japan). Although APs which are installed on platforms of train stations can offer stable and high-speed access to...
Wireless LAN devices are now everywhere because of the rapid spread of smart wireless devices. Demand for far richer content services is also driving the expansion of mobile traffic. Converging the cellular network with Wi-Fi is a reasonable way to support the increasing mobile traffic because most mobile user terminals already have Wi-Fi interfaces. More opportunities for Wi-Fi use require further...
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