Next Gen Wireless Telephony

Overview
Explore this new and ever changing level. The environment and its technologies are evolving infront of your eyes. Can you keep up? We shall see!

What is 4G?

 * As of December of 2010, 4G wireless is the next generation wireless technology in telephony. It's successors are 2G and 3G. The "G" that preceeds the number simply stands for generation. The two 4G technologies competing in the United States are known as mobile WiMax and Long Term Evolution (LTE).

4G Technologies

 * The two major 4G technologies being used are LTE (Long Term Evolution) and mobile WiMax (Worldwide Interoperability for Microwave Access).

LTE (Long Term Evolution)

 * Supporting both IPv6 and IPv4, LTE is an all IP based network. Since there is no provision for voice, VoIP (Voice over IP) is used to provide.

LTE Technologies

 * LTE uses of OFDM (Orthogonal Frequency Division Multiplex), MIMO (Multiple Input Multiple Output), and SAE (System Architecture Evolution).

Mobile WiMax

 * Similar to WiFi, WiMax can offer ranges of up to 30 miles with speeds up to 70 Mbps.

WiMax Technologies

 * The two main aspects of WiMax are the line of sight service and non line of sight service. Basically, tWimax-diagram.gif transmit long distances towers have dishes pointed at each other in a line of sight form. The non line of sight part is similar to WiFi in that you don't have to see the tower's antenna but be in range of it. WiMax isn't made just for mobile devices, rather mobile devices are using WiMax as a method of providing very high data speeds.

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