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3g Function Explained
At its most basic core, 3G enables network operators a all encompassing range of services and technologies to improve services and allow for higher capacities on networks. This is arrived at through spectral efficiency; spectral efficiency defines how a specific bandwidth or frequency is utilized in the transmission of data in the form of voice, video telephony and general data transmissions like that of the Internet. The IEEE 802.11 networks are first and foremost short range and high bandwidth for data transmission and can also be used for telephone calls and video calls. 3G allows for a superior quality of speed of transmission: the average speed has not yet been standardized. Many users will be quoted different speeds according to the service provider's documentation. But generally, a 3G user in a fixed position will be able to transfer at a minimum of 2 Mbit/s to a maximum of 14.4 Mbit/s. These rates fluctuate as the user changes position between varying cellular towers and access points via the 3G network. At a walking pace, users can expect to have a maximum transfer of: 384 kbit/s or in a moving car at 128 kbit/s. 3G also add in the use of HSPA for fast transmissions; HSPA is a combination of two separate mobile telephone protocols. One is for the uplink transfer (HSUPA) and the other for downlink (HSDPA) transfers. The standard for 3G has fallen into the UMTS or W-CDMA specification and is used in most 3G networks in one form or another. There are five other interfaces for the technologies governing the wireless Internet and telephone industries, although many are only used in remote locations that have not yet upgraded to the 3G network. The upgrade process is a time consuming and laborious one as the pre-3G technologies needed to be almost completely replaced. In a lot of areas and countries, the radio frequencies used for 3G and UMTS are completely different than those used for previous technologies. Licensing needs approval on these new radio frequencies which has been a problem for some companies and countries as the costs can be staggering. While new networks need to be built and designed in areas lacking the available technology to build on, 3G has taken a not insignificant portion of the world's data services. According to Informa (via Morgan Stanley December 2009), the leading three countries for usage of 3G handsets is Japan at 87%, South Korea 71% and Australia 52%. The USA is positioned 7th with 37%. Global penetration as of December 2009 is 11%. Article Directory: http://www.articledashboard.com MobilityPass has supplied global roaming connections to worldwide travelers for more than ten years. With its one of a kind membership area allowing users to access a selection of telecommunications needs such as WiFi, SMS, VPN, VoIP, DID numbers, emails, fax and more. No contract, pay as you go. |
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