Classified as 3G networks (3rd generation) uses the IEEE 802.11 protocol and were primarily developed the use of data transmission by wireless networks. 3G is the third generation telecommunications defined specifications by the International Telecommunication Union (ITU).
In the heart of the most basic, offers 3G network administrators a wide range of services and technologies to improve services and make room for higher capacity in the networks. This is a result of spectral efficiency, spectral efficiency is reached, the width used with a particular frequency or band in the data transmission in the form of voice, video telephony and general data, such as the Internet. IEEE 802.11 networks are often used by short-range and high bandwidth for data transmission and can also telephone and video calls.
3G broadband provides better transfer speed: the average speed are calculated.
Many users will be quoted different prices depending on the service documentation. Typically, a user of the 3G broadband services in a fixed position, are able to transmit up to 14.4 Mbit / s, a minimum of 2 Mbit / s. To change when the user moves through different cellular towers and access over the 3G network. This Voets cadence can users expect a maximum transfer rate available: 384 kbit / s or in a car at 128 kbit / s
3G also includes the use of HSPA for fast transmission, HSPA is a joint use of two separate protocols mobile. One for uplink transmission (HSUPA) and the other for the transmission of downlink (HSDPA).
The standard for 3G UMTS or fell in W-CDMA specification and is used in most 3G networks in one form or another. There are five different interfaces for the control of mobile phone and Internet industry, although many in remote locations that are not yet upgraded to the 3G network.
The upgrade process is a long and difficult pre-3G technologies are almost completely replaced. In many parts of the country and the radio frequencies used are completely different from previous technologies for 3G and UMTS.
License must be obtained for this new radio frequency, a challenge for some companies and countries such as the costs can be enormous.
As new networks must be designed and constructed in areas that do not have the technology available to build 3G broadband has a fair share of global data services made. According to Informa (via Morgan Stanley in December 2011), the top three countries for penetration of 3G mobile phones in Japan 87%, South Korea 71% and 52% in Australia. The U.S. 7th Place with 37%. Global penetration of December 2011 is 11% .
Tidak ada komentar:
Posting Komentar