基於軟體定義無線電矽智產平台之 LTE / LTE-A 下行同步與細胞搜尋實現;Design and Implementation of LTE / LTE-A Downlink Synchronization and Cell Search on Software-Defined Radio Silicon IP Platform

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題名:	基於軟體定義無線電矽智產平台之 LTE / LTE-A 下行同步與細胞搜尋實現;Design and Implementation of LTE / LTE-A Downlink Synchronization and Cell Search on Software-Defined Radio Silicon IP Platform
作者:	林奕宏;Lin, I-Hung
貢獻者:	通訊工程學系在職專班
關鍵詞:	軟體定義無線電;矽智產平台;下行同步;細胞搜尋;符幀架構;主要同步信號;第二同步信號;載波頻率誤差;時間同步;脈衝雜訊消除;減少直流成分;校正不匹配因子;SDR;software-defined radio;silicon IP platform;downlink synchronization;cell search;frame structure;PSS;primary synchronization signal;SSS;secondary synchronization signal;carrier frequency offset;timing synchronization;impulse noise mitigation;DC Offset cancellation;IQ mismatch calibration
日期:	2020-07-07
上傳時間:	2020-09-02 17:08:42 (UTC+8)
出版者:	國立中央大學
摘要:	本文利用市面上兩種常見的軟體定義無線電 ( SDR ) 平台，RTL-SDR 與 USRP 來實現真實 LTE / LTE-A 下行同步與細胞搜尋。分析規格內建之符幀架構，採純軟體方式偵測基頻樣本內之主要同步信號 ( PSS ) 與第二同步信號 ( SSS )，並完成載波頻率誤差 ( CFO ) 校正與時間同步來達到初始細胞搜尋之目標。輔以矽智產 ( silicon IP ) 硬體特性之了解，加以消除真實環境接收信號的非理想效應，如脈衝雜訊、直流 ( DC ) 成分與 IQ 不匹配，來維持正交分頻多工 ( OFDM ) 架構之平行通道的概念。;Using 2 types of the most popular software-defined ratio ( SDR ) platform, RTL-SDR and USRP, to design and implement a real world LTE / LTE-A downlink synchronization and cell search receiver. According to the specification of frame structure, it can detect primary synchronization signal ( PSS ) and secondary synchronization signal ( SSS ) from baseband samples by pure software methodology. In order to accomplish cell search target, carrier frequency offset ( CFO ) calibration and timing synchronization were also finished. After understanding characteristics of SIP ( silicon IP ) hardware, mitigating the non-ideal effects of real world condition, i.e. impulse noise, direct current ( DC ) and IQ mismatch, to maintain parallel channel concepts of orthogonal frequency-division multiplexing ( OFDM ).
顯示於類別:	[通訊工程學系碩士在職專班 ] 博碩士論文

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