第五代巨量天線徑分多重接取蜂巢式系統手機初始化步驟之研究

A Study on Handset Initialization Procedure for 5G Massive Antenna MDMA Cellular System

林揚玹(Yang-Hsuan Lin)

指導教授 ： 黃家齊

國立交通大學/電機學院/電信工程系所/碩士(2020年)

摘要

對於第五代蜂巢式通訊系統，基於正交分頻多工技術的時分雙工巨量天線徑分多重接取系統已被提出。於此論文中，我們將研究並探討徑分多重接取系統下初始細胞搜尋與控制訊號之傳送方式，以下分為不同階段以利討論。
第一階段使用下行訊號估計接收之訊號雜訊比並補償符元同步與小數頻偏。第二階段中，我們利用以天線躍遷傳送之主控制頻來檢測整數頻偏。於第三階段，我們提出於輔控制頻上之設計以幫助用戶端有效辨別基地台辨識碼並利用前引訊號完成時框架構同步。而控制訊號則利用了輔控制頻搭配索引調變以達到傳輸速率的提升。
最後，透過電腦模擬進行在多細胞環境之下的效能分析，檢視其效能表現，並比較不同演算法與傳輸方式之間的差異。

關鍵字

第五代通訊系統 ； 巨量天線 ； 徑分多重接取 ； 手機初始化步驟

並列摘要

For the fifth generation mobile communication system, a feasible technique called TDD massive antenna multipath division multiple access (MDMA) system has been proposed, which is based on orthogonal frequency division multiplexing (OFDM). In this thesis, we studied the cell search procedure as well as control signaling in the MDMA system. It is divided into several stages in the following.
At the first stage, the downlink signal is utilized to help mobile stations estimate the received signal-to-noise ratio (SNR) and compensate symbol timing offset (STO) as well as fractional carrier frequency offset (FCFO). Secondly, a primary control tone (PCT) is transmitted with antenna hopping so that mobile stations can detect integer carrier frequency offset (ICFO). At the third stage, second control tones (SCT’s) are designed to help users recognize the cell ID’s of their home bases and the frame timing synchronization is done in the meantime. Also, to enhance control data rate, index modulation is implemented on the SCT’s.
Finally, simulation results are presented to demonstrate the performance under a multi-cell environment, and we compare the difference between the proposed and other algorithms.

並列關鍵字

5G ； Massive Antenna ； MDMA ； Initialization Procedure

參考文獻

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