Time filter

Source Type

Chen S.,China Academy of Telecommunications Technology CATT | Wang Y.,China Academy of Telecommunications Technology CATT | Qin F.,China Academy of Telecommunications Technology CATT | Shen Z.,China Academy of Telecommunications Technology CATT | Sun S.,China Academy of Telecommunications Technology CATT
IEEE Wireless Communications | Year: 2014

Future wireless mobile broadband systems will address the demand of high data rate due to the explosive growth of mobile Internet traffic. Deploying a layer of dense small cells with low transmit power is an effective means to meet the data rate requirement. As one of the prospective solutions to future mobile broadband systems, TDD-based LTE-Hi aims to provide higher performance in hotspots and indoor environments by exploiting wider transmission bandwidth in higher frequency band(s) and being seamlessly integrated with conventional LTE macro-cells. This article outlines the main challenges faced by future wireless mobile broadband and presents the key technical enhancements for LTE-Hi. © 2002-2012 IEEE.


Chen S.,China Academy of Telecommunications Technology CATT | Zhao J.,China Academy of Telecommunications Technology CATT | Peng Y.,China Academy of Telecommunications Technology CATT
IEEE Wireless Communications | Year: 2015

TD-SCDMA and TD-LTE-Advanced are two global TDD standards adopted by ITU for the Third Generation and the Fourth Generation of mobile communication. TD-LTE, the evolution of TD-SCDMA, is accepted by more and more operators and manufactures leading to global deployment in the world. As the global mobile communication standards initially promoted by China, a developing country, TD-SCDMA and TD-LTE always attract much curiosity and interest. This article reviews the standardization and development history from TD-SCDMA 3G to TD-LTE-Advanced 4G in the period 1998 to 2013. It is indicated that TD-SCDMA opened a sustainable utilization era of TDD technology in 3G and 4G. It is believed that TDD will play a more important role in 5G. Key factors promoting the successful progress of standardization and commercialization are analyzed. © 2002-2012 IEEE.

Loading China Academy of Telecommunications Technology CATT collaborators
Loading China Academy of Telecommunications Technology CATT collaborators