天線陣列的波束調準方法、多波束傳輸系統及裝置

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

108137174

專利證號

I 715247

專利獲證名稱

天線陣列的波束調準方法、多波束傳輸系統及裝置

專利所屬機關 (申請機關)

國立清華大學

獲證日期

2021/01/01

技術說明

本發明提供一種天線陣列的波束調準方法，包括下列步驟：基地台採用多組多峰波束樣式作為傳送數個同步訊號之波束樣式；用戶設備掃描同步訊號，並判斷接收功率最強的同步訊號及其所對應的接收波束方向，並藉由隨機接取通道傳送包括(明示或暗示)最強同步訊號之索引資訊的初始接取訊息；基地台在隨機接取通道上採用多組單峰波束樣式接收初始接取訊息，並判斷對初始接取訊息之接收功率最強的單峰波束樣式，以將其與初始接取訊息中的該接收功率最強的同步訊號之索引資訊所對應的多峰波束樣式的主波束進行比對，以確定傳送給用戶設備的最佳波束方向。 This invention provides a beam alignment method for an antenna array. In the method, a base station adopts a plurality of multi-modal beam patterns as beam patterns for transmitting synchronization signals. A user equipment scans the synchronization signals, determines the synchronization signal with strongest received power and a receive beam direction corresponding thereto, and transmits an initial access message including an index information explicitly or implicitly indicating the strongest synchronization signal through a random access channel. The base station receives the initial access message on the random access channel by using a plurality of single-modal beam patterns, determines the single-modal beam pattern with a strongest access power for the initial access message, and determines an optimal beam direction for the transmission to the user equipment by comparing the determined single-modal beam pattern with the strongest access power and a main lobe of the multi-modal beam pattern corresponding to the index information included in the initial access message.

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智財技轉組

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