The 4G stands for fourth generation of mobile phone and technology. The 4G delivered of mobile ultra broad band, internet access which link USB wireless modem of laptop, laptop with smart phones and also others mobile devices. The mobile phone also uses for the web access too. The cloud computing, television, gaming access, IP telephony and high definition mobile TV.
the two 4G system are deployed as commercial basis and that are the Mobile Wimax which is used first in south Korea in 2006 and that is also first release the Long term Evaluation standard which use in Oslo, Norway, Stockholm and Sweden since 1990.Mobile Wimax has deployed sprint previously clear since 2008 in the united states and Metro PCS did the first operator to offer LTE service 2010.
The Mobile Wimax and LTE version are much less than 1Gbit/s peak bit rate since the first release version and they are completely IMT-Advanced complaint but this is 4G version service providers. Since the first-release versions of Mobile WiMAX and LTE support much less than 1 Gbit/s peak bit rate, they are not fully IMT-Advanced compliant, but are often branded 4G by service providers. The two technology and 3G technology which don’t fulfill the IMT advance requirements since December 6,2010.
The 4G system don’t support traditional circuit switch telephony service as opposite to early generation but all internet protocol use as based on communication like as IP telephony. The spread spectrum radio technology used in 3G systems which is abandoned in all 4G system and replaced multi center transmission by OFDMA.
In 14 December 2009, The LTE service opened in two Scandinavian capitals which is Stockholm and Oslo which is first world publicity in the world. The first one service is Ericson and Nokia systems and second service in Hawaei systems and its branded 4G.Samsung manufactured the user terminal as of November 2012.The user terminals were manufactured by Samsung. As of Nov 2012.The T-Mobile service which is launched in a public beta test and it is called also friendly test in Hungary on 7th October 2011. You can read more in our other technology related article or blog.
Since ist January 2012 its offered commercial 4GLTE service. Since July 2011 SK Telecom and LGU+has accessed to LTE service for data services and stated go to nationwide by 2012.KT Telecom did close 2G services in March 2012 and by June 2012 they complete their whole country LTE services in the same frequency around 1.8GHz.
The mobile wireless broadband which is called The Mobile Wimax wireless access standard and that is also known as WiBro in South Korea is branded 4G which offers peak rates of 128Mbit/s downlink and 56 Mbit/s uplink over 20 MHz wide Chanel. The commercial mobile WiMax service was opened by KT in Seoul, South Korea which was the first commercial mobile in the worlds.
The operators are considering 67% which is shown in IBM data because this is the main source of the future market. The news also confirmed this statement but the operators are considering with WiMax 8% .The WiMax which can give the fastest service as network transmission to their customers on the market but LTE still could challenge.
The TD –LTE is the china 4G standards which was amended and published in china’s largest telecom operator. The commercial phase expected to be released on next two years after a series of field. The Ericssion vice president said that the Chines Ministry of industry and China Mobile in the fourth quarter of this year will hold a large scale field test and Ericssion will help the hand by then.
But the development of current progress has seen that whether China Mobile will be widely recognized by the international market is still debatable. the speeds are theoretical maximum and its vary by a number of factors which is include the use of external antenna and also distance from the tower and the ground speed. A communication on train will be poor than a open field or standing position. Generally the Bandwidth is shared between several terminals. You can read more in our other technology related article or blog.