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What is lte technology


Post by Jawad Ahmad Riaz

Long Term Evolution abbreviated as LTE, is a project of 3rd Generation Partnership Project working in association with the European Telecommunications Standards Institute. LTE was introduced after the outcome of GSM/EDGE and UMTS/HSPA network technologies and is considered as the latest standard in the mobile network technology sector. It is marketed as 4G but as it is not fulfilling the IMT advanced 4G (4th generation) requirements it is said to be 3.9G Technology. It is not backwards compatible with 3G systems but LTE advanced is compatible with LTE and hence uses the same frequency bands.

 

Need of LTE Technology:


The appetite for advanced and speeding services of mobile or internet never ends and for the purpose of satisfying the users with a vast range of facilities and benefits far more out of the existing ones the broadband providers have to bring out LTE technology over their networks. Because of this the providers have to shift or say upgrade their network infrastructure completely in order to classify this technology as 4G and is being considered by many mobile broadband providers. So we can say the reason of the advancement of this technology is to feed the never ending appetite of the mobile technology users.


Features:

  1. It peaks download rates of 326.4 Mbit/s and upload rates of 86.4 Mbit/s. It uses 4x4 antennas in case of download rates but single antenna for upload rates.
  2. Peak data rates are supported by five different terminal classes that are defined from a voice centric class up to a high end terminal and they will enable the terminals to process 20 MHz bandwidth.
  3. At low cost it provides much better services.
  4. It is Flexible in use of existing as well as new frequency Band.
  5. It has open interface and has simple structural design.
  6. It also allows evenhanded terminal power consumption.

 

Technologies Introduced by LTE:

If we look upon the earlier cellular systems, we will see that there are much more efficient new technologies introduced by LTE. It operates proficiently with respect to the use of continuum and according to today’s need much higher data rates are provided by them. They are as follow

 

  1. OFDM (Orthogonal Frequency Division Multiplex)
  2. MIMO (Multiple Input Multiple Output)
  3. SAE (System Architecture Evolution)

 
Advantages and Disadvantages:


Talking about its advantages, it produces high amount of output, has low expectancy, plug and play, FDD and TDD are found to be on the same platform, compared to others much better end-user experience and last but not the least it has simple structural design. LTE also supports smooth passing to cell towers with previous network technology like GSM, UMTS and CDMA2000. When the costs of setting up new network infrastructure, upgrading them and installation of new equipment comes, disadvantages arises. For this purpose LTE engages MIMO technology which for data transmission raises the need to use additional antennas. To experience new network infrastructure, the network users must buy new cell phones.


Future of LTE Technology


All network users whether for their personal or business use will experience the enhancement in this technology regarding its speed, capacity, coverage and reliability that will make mobile broadband way too feasible. Users being anywhere will be able to access faster connection speeds and greater levels of coverage of internet. Existing users will certainly wish to upgrade to better service and the new users will also benefit from it. The only thing is that WiMAX is considered as the rival of LTE technology for now, though they provide same benefits regarding speed and coverage but they are entirely different technologies. LTE technology even being successful in its various trials cannot guarantee to be the technology practiced by the users for their next generation.





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