Design and Implementation of LTE FDD Multi-User Uplink Synchronizer with SDR Platform

• Main Authors: Chieh Tu, 涂捷
• Other Authors: Yih-Min Chen
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/5p9426

碩士 === 國立中央大學 === 通訊工程學系 === 106 === With the development of wireless communication technology, LTE(Long Term Evolution) plays an important role in the fourth generation of mobile communication technology. In this thesis, we introduce for the LTE uplink and LTE downlink system, including the use of OFDM(Orthogonal Frequency Division Multiplexing)technology, specifications and uplink modulation and downlink modulation principle, etc. In this thesis, we used Software-dene-radio to achieve LTE uplink and downlink transmitter and receiver(communication of user and base station). By the Software-defined-radio platform, we can immediatly transmit and receiver signal in the air on some particular band. Also we can change transmit and receive gain to observe the transformation of the signal in the air, discussion on the quality of the signal and system, etc.