LTE OVERVIEW
LTE is a standard for wireless data communications technology. Earlier cellular system is based up on the circuit switched model. Now Long Term Evolution(LTE) has been designed to support only packet switched services. Its main objective to provide the seamless(Uninterrupted) internet connectivity(IP) between user equipment(UE) and packet data network(PDN) and there is no disruption in the quality of services(QOS) to the end users' application during mobility. LTE is preferred development path of GSM/W-CDMA/HSPA networks which are currently deployed and an option for evolution of CDMA networks.
LTE is basically evolution of the Universal Mobile Telecommunications System(UMTS) radio access network through the evolved UMTS Terrestrial Radio Access Network(E-UTRAN) and the non radio access part comes under “System Architecture System”(SAE), which includes the evolved packet core network(EPC). Combination of these two is evolved packet system.
The LTE specification provides down link peak rates of 300 M bit/s, up link peak rates of 75 Mbit/s and QoS provisions permitting a transfer latency of less than 5 ms in the radio access network. LTE has the ability to manage fast-moving mobiles and supports multi-cast and broadcast streams. LTE supports scalable carrier bandwidths, from 1.4 MHz to 20 MHz and supports both frequency division duplex (FDD) and time-division duplex (TDD).
LTE is basically evolution of the Universal Mobile Telecommunications System(UMTS) radio access network through the evolved UMTS Terrestrial Radio Access Network(E-UTRAN) and the non radio access part comes under “System Architecture System”(SAE), which includes the evolved packet core network(EPC). Combination of these two is evolved packet system.
The LTE specification provides down link peak rates of 300 M bit/s, up link peak rates of 75 Mbit/s and QoS provisions permitting a transfer latency of less than 5 ms in the radio access network. LTE has the ability to manage fast-moving mobiles and supports multi-cast and broadcast streams. LTE supports scalable carrier bandwidths, from 1.4 MHz to 20 MHz and supports both frequency division duplex (FDD) and time-division duplex (TDD).
WHY LTE ?
Increasing the Demand of day to day use of basic telecommunication technologies is increasing in the way of improved quality of services, experience of new applications and services. Today we are expecting voice, data, gaming, FTP services, video calling and many more is the requirement not personally at home as well as in the office and other premises as well. we are talking about the cloud computing, cloud it will be possible with the current technology 2G/3G/HSPA. So the increasing the demand of services, it is requirement of LTE should come in to picture. It is first analyst by an airtel operator and he launched the services in kolkata and bangluru.
Actually improved speed and low latency provided by LTE will offer a much improved end user experience for all corporate services.
Increasing the demand of mobile year on years, it is increasing the density of network which is still not capable to handle that much of requirement. To fulfill this need, it is required a one common infrastructure for all on the basis of sharing.
Actually improved speed and low latency provided by LTE will offer a much improved end user experience for all corporate services.
- Most of the application where data throughput is important, faster email, file upload and download, high speed internet etc.
- For interactive application where latency is crucial like IMS based VoIP, mail, file synchronization, Video conference over IP, application sharing etc.
Increasing the demand of mobile year on years, it is increasing the density of network which is still not capable to handle that much of requirement. To fulfill this need, it is required a one common infrastructure for all on the basis of sharing.