Wireless wide area network

from Wikipedia, the free encyclopedia

Wireless Wide Area Network ( WWAN - English for "wireless wide area network" or "wide area radio network") describes a wide radio network . It is the radio equivalent to the WAN (Wide Area Network). In contrast to the WLAN (Wireless Local Area Network), the WWAN covers greater ranges (outdoors). The signals are radiated into the open by means of electromagnetic waves via antenna masts. The frequencies are in the lower gigahertz range. Special modulation methods are used for this purpose .

The generic term WWAN includes the wireless network types WiMAX , GSM and UMTS and LTE . They are currently mainly used for cell phones , tablet computers and notebooks . Together with notebooks are usually " USB - Surfsticks " which are sometimes referred to as "USB Wireless Modems" used. The surf sticks are usually designed so that they except the outer USB Interface plug into its interior a transceiver unit and a slot for receiving a telecommunications - SIM card have for which usually against a provider that such SIM cards issues, fees must be paid. A contract between the telecommunications user and provider usually runs in the background. A frequently occurring intended use is to be wirelessly connected to the Internet via the telecommunication connection in order to surf it or to do things in it. For this purpose, the provider usually provides one or more servers from which you can access the network.

See also

Individual evidence

  1. Arne Düsterhöft: Surfstick: Using an Internet stick, you can be online anywhere with a laptop and the like. In: Finanztip online, July 25, 2019