Network and Management
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- 3G Wireless Networks.
| 2G Wireless Networks. The 2nd generation (2G) mobile telephone network launched a new era of mobile wireless communications using modern digital signals broadcast from radio transmission antennas instead of analog signals. 2G introduced the use of codecs, which are methods of coding and encoding a digital signal to enable loading a specific radio frequency or bandwidth with more individual radio transmissions (calls).
3G Wireless Networks. Cell phone providers and cell phone manufacturers offer 3rd generation (3G) mobile telecommunications services that enable users to access the Internet and transmit data through a 3G-equipped device, such as a cell phone or small tablet computer. 3G communications are capable of up to 5.8 Mbps upstream and 14.4 Mbps downstream for combined voice, data, and Internet services, including multimedia. 3G requires a device— such as a cell phone or smartphone, camera, book reader, tablet, or gaming device—to have a 3G module. There are also USB devices with 3G modules that plug into computers for mobile 3G network access to the Internet. 3G supports digital voice, data applications, streaming music, full motion video, Internet access, voice mail, conference calling, and other wireless communications. Download 300.54 Kb. Share with your friends:
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