Preamble Detection on Physical Random Access Channel in LTE-A Communications

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黃志偉(Chih-Wei Huang) 查詢紙本館藏

畢業系所

通訊工程學系

論文名稱

(Preamble Detection on Physical Random Access Channel in LTE-A Communications)

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摘要(中)

我們的手機開機第一件事情就是與基地台達成時間同步。在下行鏈路的同步上，我們在一定的時間間隔採用廣播的方式，但上行鏈路的同步上就不能這麼做了，這麼做會大量消耗能源。上行鏈路的同步只發生在需要的時刻，本文後面將會提到哪些時刻需要做上行同步。然而，我們要如何得知用戶(UE)需要進行上行同步呢，我們將利用偵測前導碼(preamble)的方式來得知用戶(UE)要進行上行同步。

摘要(英)

The first thing that starts with our mobile phone is to synchronize with the base station. In the downlink synchronization, we use the broadcast method at certain time intervals, but the uplink synchronization cannot do this. This will consume a lot of energy. Uplink synchronization occurs only when there is immediate necessity, and will be mentioned later in this article for uplink synchronization. However, how do we know that the user (UE) needs to perform uplink synchronization? We will use the method of detecting the preamble to know that the user (UE) is going to perform uplink synchronization.

關鍵字(中)

★ 前導碼偵測
★ 虛警機率

關鍵字(英)

★ preamble detection
★ false alarm probability

論文目次

摘要 i
致謝 iii
圖目錄 v
表目錄 vii
第一章緒論 1
1.1隨機存取程序 1
1.2 單載波分頻多重存取的介紹 [2] 4
1.3 Zadoff-Chu sequence介紹 6
1.4 匹配濾波器接收器的介紹 7
1.5 研究動機 8
第二章前導碼(Preamble)的介紹 9
2.1 前導碼的生成 [15] 9
2.2前導碼的架構 13
第三章系統模型 18
3.1 發射端模型 [16] 18
3.2 接收端模型 21
第四章檢測方法 22
4.1 單序列檢測法 [17] 22
4.2 閥值的計算 23
4.3 匹配濾波器檢測接收器 25
第五章模擬結果 28
第六章結論 35
參考文獻 36

參考文獻

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[15] 3GPP, "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation," TS 36.211 V15.4.0, pp. 81-94, Dec. 2018.
[16] Y.-P. Lin and S.-M. Phoong, Filter Bank Transceivers for OFDM and DMT Systems, Cambridge University Press, 2010.
[17] H. L. V. Trees, Detection Estimation and Modulation Theory, John Wiley & Sons, Inc., Sept. 2001.
[18] 3GPP, "3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS) radio transmission and reception (Release 16)," TS 36.104 V16.1.0, p. 209, Mar. 2019.
[19] M. Hua, M. Wang, K. W. Yang and K. J. Zou, "Analysis of the Frequency Offset Effect on Zadoff–Chu Sequence Timing Performance," in IEEE Transactions on Communications, vol. 62, no. 11, pp. 4024-4039, Nov. 2014.
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[21] Y. Wen, W. Huang and Z. Zhang, "CAZAC sequence and its application in LTE random access," 2006 IEEE Information Theory Workshop - ITW ′06 Chengdu, Punta del Este, pp. 544-547, Oct. 2006.
[22] S. Kim, K. Joo and Y. Lim, "A delay-robust random access preamble detection algorithm for LTE system," 2012 IEEE Radio and Wireless Symposium, Santa Clara, CA, pp. 75-78, Jan. 2012.
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[24] M. Tarvares, D. Uptegrove and D. Samardzija, “System and method of controlling network traffic using preamble detection and automated optimization of random access channel parameters”, US Patent Application, Filed in June 2016.

指導教授

林嘉慶(Jia-Chin Lin)

審核日期

2019-8-20

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