無線通訊系統同步方法與架構

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

110114128

專利證號

I 773256

專利獲證名稱

無線通訊系統同步方法與架構

專利所屬機關 (申請機關)

國立交通大學

獲證日期

2022/08/01

技術說明

【中文】 本發明提供一種無線通訊系統同步方法，包含下列步驟。透過使用者設備自無線通訊系統接收符元；偵測符元之無碼際干擾區間；將快速傅立葉轉換窗之端點設置於無碼際干擾區間；偵測符元之偏移主控頻率值及偏移次控頻率值；依據偏移主控頻率值及主控頻率值計算整數頻率偏移；依據整數頻率偏移及偏移次控頻率值計算符元之次控頻率值；依據次控頻率值找出訊框之前導序列；以及依據前導序列決定訊框起點。 【英文】 A method of synchronization of wireless communication system is provided. The method includes the following steps. Receiving a symbol form a wireless communication system by an user equipment; detecting ISI-free region of the received symbol; setting an endpoint of a FFT window within the ISI-free region; detecting shifted primary control frequency and shifted secondary control frequency of the symbol; calculating ICFO based on the shifted primary control frequency and a primary control frequency; calculating secondary control frequency based on ICFO and shifted secondary control frequency; finding preamble of a frame based on the secondary control frequency; and determining, based on the preamble, a start point of the frame.

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