What is LTE - Long Term Evolution

    
LTE

LTE stands for “Long Term Evolution” is a new technology that offers enhancements to existing mobile technologies or may replace them by the time. LTE is 4G (4th Generation) technology that aimed to provide better quality of service as compare to other 3G and Wimax technology. LTE is widely called the competitor technology to WiMAX because of its wireless nature and mobile services.  During the period of 2009 most of the mobile phones and other mobile broadband services are operated on conventional GSM (Global System for Mobile communication) and CDMA. Now LTE offers lower cost for users of mobile wireless with high data speed and improved bandwidth for network service providers.

LTE technology is under the phase of developments and improvements to offer network providers a reliable solution to migrate from 3G to 4G technology infrastructure. For mobile wireless users LTE facilitates the current applications to perform on better speed as well as for the new mobile applications to get more by using LTE.


By the end of 2008 the users of GSM networks are over the ratio of 80% alone in US, thus CDMA (Code Division Multiple Access) is still very common among mobile wireless users. In the United States (US) the Sprint and Verizon continue to use both GSM and CDMA technologies whereas the other network providers still considering the GSM (Global System for Mobile Communication) standards. Network deployments of LTE Technology is much far behind than its competing WiMAX technology, and it’s expected to groom in near future until 2012.


LTE offers faster data rate transfer as compare to existing 3G network equipments by using radio waves over the same bandwidth.  By using LTE, network providers will be able to offer better transfer rates on their existing network cells and also offer their customers a lower cost services.  LTE makes it possible for network providers to prepare for network transition without any problem and use existing GSM and CDMA network infrastructure as backups when needed in emergency cases or network maintenance.  LTE offers its mobile broadband services on radio waves thus Wimax utilizes microwaves for data transmission and it is the major difference seen between LTE and Wimax.

The major disadvantage of LTE is the cost of setup of new network infrastructure and in case of network upgrades; new equipments will be needed to be installed.  LTE technology employs MIMO (Multiple Input Multiple Output) technology that raises the need to use additional antennas at network base stations for data transmission.  As a result to the network upgrades users need to buy new cell phones to make use of new network infrastructure.


3GPP (3rd Generation Partnership Projects) is the Industry group that aims to provides LTE standards. 3GPP group first introduced LTE to provide data transfer and afterwards mobile equipment manufacturers and mobile network providers joined this group in 2009 to build new shape of Voice over LTE by using VoLGA (Voice over LTE Generic Access) Forum.  This Forum constantly committed to deliver the quality services of messaging service and also support for the voice by further expanding the LTE technology over existing mobile networks.  The basic agenda of 3GPP group is to create a transition friendly technology that can be easily deployed on the existing networks without any need of new network setups.

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