NB-IOT部分佈建下的動態干擾偵測與能量保存之研究

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姓名

蔡岳廷(Justin Tsai) 查詢紙本館藏

畢業系所

通訊工程學系

論文名稱

NB-IOT部分佈建下的動態干擾偵測與能量保存之研究
(The Study of Dynamic Interference Detection and power saving in NB-IOT Partial Network Deployment)

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摘要(中)

隨著物聯網（Internet of Things）設備的大規模佈署，LTE (Long Term Evolution)引入了低功耗廣域(LPWA)物聯網的技術。在LTE Rel-13中提出了兩項新功能，eMTC（enhanced MTC）和窄帶物聯網（NB-IoT），以支持窄帶機器型通信 (narrowband machine type communications)。由於NB-IoT的設計是基於現有的LTE功能作改良的，LTE原有的硬體設備是可以重複使用的，所以在佈建時允許使用現有的低成本基礎設施並快速佈署NB-IoT設備。
但是，在佈建的過程中，因為部分佈署已可支援NB-IoT，部分為舊基地台不支援NB-IoT，所以會出現一些NB-IoT與LTE基地台間的干擾問題。我們統整了幾種技術來彌補路徑損耗高和干擾大的問題，包括功率提升(power boosting)、重送機制(repetition)、LBT和資源消隱(resource blanking)等技術。因此本篇論文提出了一個兩階段式的演算法，利用上面提出的這些方案來減少有支援和不支援NB-IoT基地台時出現的干擾問題，以降低終端設備碰撞機率和降低能耗，使終端設備資源和能源的使用與分配達到最佳化。

摘要(英)

With the massive deployment of Internet of Things (IoT) devices, low-power wide area IoT connectivity has been introduced for LTE. In LTE Rel-13, two new features supporting narrowband machine type communications (MTC) are being introduced. The features are called eMTC (enhanced MTC) and Narrowband IoT (NB-IoT). Since NB-IoT design is based on existing LTE functionalities, it is possible to reuse the same hardware and also to share spectrum without coexistence issues.
However, older equipment may not be able to support both LTE and NB-IoT simultaneously and a hardware upgrade may be required. In this case, NB-IoT deployment can be phased in where existing cell sites are incrementally upgraded to NB-IoT. So we investigate some of the problems arising from partial deployment of NB-IoT and potential solutions to resolve them. They include power boosting, coverage extension using repetition, and interference mitigation techniques such as resource blanking, LBT.
In this paper we present the Adaptive interference and power allocation method to lower the collision and the energy consumption. The goal is to optimize the energy efficiency and resource allocation of the UE.

關鍵字(中)

★ NB-IoT
★ 部分佈建
★ 能源分配

關鍵字(英)

★ NB-IoT
★ Partial Network Deployment
★ Power allocation

論文目次

目錄
中文摘要.....................................................................................................I
英文摘要...................................................................................................II
誌謝..........................................................................................................III
目錄..........................................................................................................IV
圖目錄.....................................................................................................VII
表目錄......................................................................................................IX
第一章序論..............................................................................................1
1-1 前言..............................................................................................1
1-2 研究動機......................................................................................3
1-3 論文架構......................................................................................4
第二章相關研究背景..............................................................................5
2-1 NB-IoT系統簡介........................................................................5
2-1-1 NB-IoT介紹............................................................................5
2-1-2 NB-IoT系統架構.............................................................6
2-1-3 頻帶佈建跟通道品質......................................................8
2-1-4 覆蓋等級(CE level)....................................................10
2-2 NB-IoT實體層..........................................................................11
2-2-1 NB-IoT實體層運作模式...............................................12
2-2-2 上行NPUSCH...................................................................13
2-2-3多載波配置.....................................................................17
2-2-4 小區重選和移動性........................................................18
2-3 NB-IoT 通訊技術.....................................................................18
2-3-1 Power Boosting ...........................................................18
2-3-2 Resource Blanking......................................................21
2-3-3 ICIC與eICIC................................................................23
2-3-4 ACIR (ACLR & ACS)干擾..............................................24
2-3-5 重送機制........................................................................26
第三章系統情境與架構........................................................................29
3-1 NB-IoT設備之情境...................................................................29
3-2 系統的架構及流程....................................................................31
3-2-1系統架構及規格.............................................................31
3-2-2系統流程圖.....................................................................37
第四章模擬與分析................................................................................45
4-1 模擬之參數...............................................................................45
4-2 模擬結果與分析.......................................................................46
4-2-1 部分佈建(有blanking)...............................................46
4-2-2 重送機制........................................................................48
4-2-3 資料傳送時間................................................................50
4-2-4 基地台Power & PSD Boosting...................................51
第五章結論與未來研究之方向............................................................52
參考文獻..................................................................................................53

參考文獻

參考文獻
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[2] Huawei, “NB-IoT White Paper”, 2015.

[3] Nitin Mangalvedhe, Rapeepat Ratasuk, and Amitava Ghosh, ”NB-IoT Deployment Study for Low Power Wide Area Cellular IoT”, 2016 IEEE PIMRC on, pp. 1-6.

[4] J.Schkienz, D.Raddino “Narrowband Internet of Things Whitepaper”, IEEE Microwave Magazine, Vol. 8, no. 1, pp. 76-82, August. 2016.

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[6] 3GPP TR 45.820 V13.1.0, November 2015; Cellular system support for ultra-low complexity and low throughput Internet of Things (CIoT).

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[8] 林立峰/羅士捷/林家男, 資通訊技術與產業標準探究專欄, 廣覆蓋/大量連結/低功耗具優勢, 新通訊2018年1月號203期《技術前瞻》.

[9]3GPP TS 36.213 V12.5.0 , March 2015; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures

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[11] 3GPP TS 36.XXX;Narrowband Internet of Things Whitepaper, rohde&schwarz

[12]閱讀屋,史上最全的NB-IoT知識，每個通訊人都應該瞭解的...;參考並翻譯自[11].

[13] Nitin Mangalvedhe, Rapeepat Ratasuk, and Amitava Ghosh, ”NB-IoT Deployment Study for Low Power Wide Area Cellular IoT”, 2016 IEEE PIMRC on, pp. 1-6.

[14]J. M. Holtzman, “Asymptotic analysis of proportional fair
algorithm,” in 2001 12th IEEE International Symposium on Personal
Indoor and Mobile Radio Communications, vol. 2, pp. F–33, IEEE, Oct.
2001

[15] Yuqing Wang, Zhanji Wu*,”A Coexistence Analysis Method to Apply ACLR and ACS between NB-IoT and LTE for Stand-alone Case” , 2016 IEEE IMCCC , pp. 375-379.

[16]魏嘉宏/汪海瀚, 低功耗物聯網刷新架構　NB-IoT三大模式面面俱到,新通訊 2016 年 8 月號 186 期《技術前瞻》.

[17] Rapeepat Ratasuk, Nitin Mangalvedhe, Jorma Kaikkonen and Michel Robert, “Data Channel Design and Performance for LTE Narrowband IoT”, 2016 IEEE International Conference, pp. 1-5.

[18] Zhijun Zhuang, Lei Feng, Peng Yu and Wenjing Li” Uplink Resource Scheduling for Power Wireless Private Network based on NB-IoT and LTE Hybrid Transmission”, 2017 IEEE CSE and IEEE EUC, pp. 1-6.

[19] Chun Yeow Yeoh, Abdullah bin Man*, Qazi Mamoon Ashraf**, Ahmad Kamsani Samingan*” Experimental assessment of battery lifetime for commercial off-the-shelf NB-IoT module”2018 20th IEEE ICACT, pp. 223-228

[20]范遙, NB-IoT，了解一下, 通信大?野2018-05-30.

指導教授

吳中實(Jung-Shyr Wu)

審核日期

2018-7-18

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