4G Americas, a wireless industry trade association representing the 3GPP family of technologies, including LTE, today announced that it has published a white paper, Integration of Cellular and Wi-Fi Networks, which explores the current state of Wi-Fi/Cellular integration and makes specific recommendations to enhance key components: Wi-Fi network selection and traffic steering, referred to as Intelligent Network Selection (INS). The paper reviews and describes fundamental aspects to Wi-Fi such as: · Seamless service / session continuity, QoS, security, Hotspot 2.0 and concepts of Intelligent Network Selection (INS) · Access Network Discovery and Selection Function (ANDSF), its technical background and existing challenges for ANDSF-based INS · Device aspects of network selection and traffic steering, current standards and solutions and gaps in existing standards work The white paper reviews the standardization work in 3GPP for a network-based mobility mechanism (SaMOG). This technology option supports tight integration of Trusted Wi-Fi networks with 3GPP Cellular networks and is identified as the best path forward. Subscribers can move between LTE and Trusted Wi-Fi networks while preserving their IP address and allowing access to Operator Services over Wi-Fi (e.g., IP Multimedia Subsystem or IMS). The paper also explores how to enable real-time services and end-to-end Quality of Service over an integrated Trusted Wi-Fi network. The paper recommends the use of the WPA2 airlink encryption and SIM-based credentials for authentication purposes by dual mode devices that support both Wi-Fi and Cellular accesses.
via WiFiNovation | Scoop.it
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