Td-Lte: Another Network Technology for Mobile Telecommunication Evolution
TD-LTE: Another Network Technology for Mobile Telecommunication Evolution
Haoliang JIAN
Department of Electronics, University of York
Heslington, York, YO10 5DD, UK hj639@york.ac.uk I.
Abstract----Due to increasing demand of data traffic, the existing 3G network has nearly reach its capacity limitation. Carriers have paid more attention to the evolution scheme called LTE. According to different duplex mode, LTE has two different standards, which are TD-LTE and LTE-FDD separately. Although LTE-FDD is advanced now compared with TD-LTE, TD-LTE has some inherent advantages. With the shortage of spectrum resources, TD-LTE evolution solution could be considered by more and more carriers. This paper will discuss the key feature of TD-LTE and find out its advantage by comparing with FDD-LTE. Also it will make a overview about the next generation of TD-LTE, which is the evolution direction of TD-LTE in the future.
Keyword----TD-LTE, LTE-FDD, Network evolution, Duplex mode, Spectrum. II. INTRODUCTION
As the development of mobile devices such as smartphones or tablets, the demand of data traffic is increasing rapidly. It also changes the mobile network, which has mainly provided voice service traditionally, to be more data-oriented. The mobile data traffic growth rate will maintain in 50% approximately each year, which is forecasted by Cisco [1]. The capability of existing 3G systems cannot satisfy the requirements of data traffic growth, even they has improved a lot in data service from 2G.
In order to achieve the demand of mobile traffic, many carriers have been turning to the enhanced technology called long-term evolution (LTE). LTE is defined by 3rd Generation Partnership Project (3GPP) in release 8 [2]. LTE system has many advantages to adopt the age of mobile Internet. It could provide high speed, low delay, efficient usage of spectrum, low cost and easy maintenance in its new network construction [3]. LTE supports two kinds of duplex mode, which
Haoliang JIAN
Department of Electronics, University of York
Heslington, York, YO10 5DD, UK hj639@york.ac.uk I.
Abstract----Due to increasing demand of data traffic, the existing 3G network has nearly reach its capacity limitation. Carriers have paid more attention to the evolution scheme called LTE. According to different duplex mode, LTE has two different standards, which are TD-LTE and LTE-FDD separately. Although LTE-FDD is advanced now compared with TD-LTE, TD-LTE has some inherent advantages. With the shortage of spectrum resources, TD-LTE evolution solution could be considered by more and more carriers. This paper will discuss the key feature of TD-LTE and find out its advantage by comparing with FDD-LTE. Also it will make a overview about the next generation of TD-LTE, which is the evolution direction of TD-LTE in the future.
Keyword----TD-LTE, LTE-FDD, Network evolution, Duplex mode, Spectrum. II. INTRODUCTION
As the development of mobile devices such as smartphones or tablets, the demand of data traffic is increasing rapidly. It also changes the mobile network, which has mainly provided voice service traditionally, to be more data-oriented. The mobile data traffic growth rate will maintain in 50% approximately each year, which is forecasted by Cisco [1]. The capability of existing 3G systems cannot satisfy the requirements of data traffic growth, even they has improved a lot in data service from 2G.
In order to achieve the demand of mobile traffic, many carriers have been turning to the enhanced technology called long-term evolution (LTE). LTE is defined by 3rd Generation Partnership Project (3GPP) in release 8 [2]. LTE system has many advantages to adopt the age of mobile Internet. It could provide high speed, low delay, efficient usage of spectrum, low cost and easy maintenance in its new network construction [3]. LTE supports two kinds of duplex mode, which
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