5G中頻段量測與可用性評估｜國立臺灣科技大學博碩士論文系統

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研究生：	陳柏全 Po-Chuan Chen
論文名稱：	5G中頻段量測與可用性評估 Measurement and Feasibility in 5G Mid-Band
指導教授：	林丁丙 Ding-Bing Lin
口試委員:	曾昭雄 Chao-Hsiung Tseng 楊世宗 Shi-Zong Yang
學位類別：	碩士 Master
系所名稱：	電資學院 - 電子工程系 Department of Electronic and Computer Engineering
論文出版年：	2018
畢業學年度：	106
語文別：	中文
論文頁數：	69
中文關鍵詞：	5G中頻段、中新衛星二號、同頻干擾、鄰頻干擾、小細胞基站、FSS地面站、保護距離
外文關鍵詞：	5G Mid-Band, ST-2, Co-channel interference, Adjacent-channel interference, Small cell, FSS, Protection distance
相關次數：	點閱：269 下載：1
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本論文實行 5G中頻段使用狀況量中頻段使用狀況量中頻段使用狀況量中頻段使用狀況量中頻段使用狀況量中頻段使用狀況量中頻段使用狀況量中頻段使用狀況量測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。測與可用性評估，並提出完整分析結果。透過台大頻譜觀測站系統，透過台大頻譜觀測站系統，透過台大頻譜觀測站系統，透過台大頻譜觀測站系統，透過台大頻譜觀測站系統，透過台大頻譜觀測站系統，透過台大頻譜觀測站系統，透過台大頻譜觀測站系統，透過台大頻譜觀測站系統，透過台大頻譜觀測站系統，透過台大頻譜觀測站系統，透過台大頻譜觀測站系統，針對中新二號針對中新二號針對中新二號針對中新二號針對中新二號針對中新二號 (ST-2)所採用的 Extended C-band，於 3400至4200MHz頻段，進行全時資料蒐集與分析，以研究 ST-2的使用狀況與干擾評估。當佈建環境干擾源與評估。當佈建環境干擾源與評估。當佈建環境干擾源與 FSS地面站屬於 NLOS環境，偏軸角環境，偏軸角環境，偏軸角分別為 53度, 71度的各量測場域，進行實驗。結果顯示在鄰頻干擾部分當的各量測場域，進行實驗。結果顯示在鄰頻干擾部分當的各量測場域，進行實驗。結果顯示在鄰頻干擾部分當的各量測場域，進行實驗。結果顯示在鄰頻干擾部分當的各量測場域，進行實驗。結果顯示在鄰頻干擾部分當的各量測場域，進行實驗。結果顯示在鄰頻干擾部分當的各量測場域，進行實驗。結果顯示在鄰頻干擾部分當的各量測場域，進行實驗。結果顯示在鄰頻干擾部分當的各量測場域，進行實驗。結果顯示在鄰頻干擾部分當的各量測場域，進行實驗。結果顯示在鄰頻干擾部分當 C/N大於 11dB時，未產生干擾情形。當佈建環境源與未產生干擾情形。當佈建環境源與未產生干擾情形。當佈建環境源與未產生干擾情形。當佈建環境源與 FSS地面站屬於偏軸角為 68度的 LOS環境，環境，同頻干擾從 3655MHz~3659MHz進行實驗。量測結果顯示，干擾嚴重本進行實驗。量測結果顯示，干擾嚴重本進行實驗。量測結果顯示，干擾嚴重本進行實驗。量測結果顯示，干擾嚴重本進行實驗。量測結果顯示，干擾嚴重本進行實驗。量測結果顯示，干擾嚴重本論文針對小細胞基站與 FSS系統在共存環境下，系統在共存環境下，提出採用保護距離的方法，來抑制小細胞基站與 FSS系統共存時可能在的干擾問題。根據理論數分析，以推算出系統共存時可能在的干擾問題。根據理論數分析，以推算出系統共存時可能在的干擾問題。根據理論數分析，以推算出系統共存時可能在的干擾問題。根據理論數分析，以推算出系統共存時可能在的干擾問題。根據理論數分析，以推算出當干擾功率最大時，抑制小細胞基站對 FSS地

We have completed the measurement and feasibility assessment of the usage in 5G mid-band and provided complete analysis results. Through the NTU Spectrum Observatory System, the team conducted a full-time data collection and analysis for the Extended C-band used by the ST-2 satellite in the frequency bands from 3400 to 4200 MHz to study the usage and interference of the ST-2. The tests were done under the NLOS (Non-Line-Of-Sight) environment with off-axis angles of 50°, 53°, and 71°, respectively, between the interference source and the FSS (Fixed Satellite Service) ground station. The measurement results show that with adjacent-frequency interference, when the carrier-to-noise (C/N) ratio is greater than 11dB, no interference occurs. Under the LOS (Line-Of-Sight) environment with an off-axis angle of 68°, the same-frequency interference tests were conducted from 3655 MHz to 3659 MHz. Measurement results show that the interference is serious. We used the
iv
protection distance method in the coexistence environment between the small cell base station and the FSS system to suppress possible interference problems when the small cell base station coexists with the FSS system. According to the theoretical data analysis, it can be calculated that when the interference power is the maximum, the same-frequency interference protection distance of the small-cell base station to the FSS ground station is suppressed.

目錄............................................................................................................................... i
圖目錄........................................................................................................................ viii
表目錄............................................................................................................................ x
第一章 緒論................................................................................................................ 1
1.1 前言 ..................................................................................................................... 1
1.2 研究動機與目的 ................................................................................................. 2
1.3 國際文獻探討與研究方法 ................................................................................. 4
1.3.1方法與程序步驟 ........................................................................................... 5
1.3.2重要參數討論 ............................................................................................... 7
1.3.3計算保護範圍(Protection zone) .................................................................... 8
1.4 論文架構概述 ..................................................................................................... 8
第二章............................................................................................................................ 9
小細胞基站與FSS系統概述暨干擾模型定義 ........................................................... 9
2.1.1 小細胞基站(Small cell) ............................................................................... 9
2.1.2 固定衛星業務(Fixed Satellite Service: FSS)............................................. 10
2.1.2 LNB極化與衛星位置相對關係 ................................................................ 13
2.2 小細胞基站與FSS系統間干擾類型 .............................................................. 16
2.2.1 同頻(Co-Channel)干擾分析 ...................................................................... 17
2.2.1 鄰頻(Adjacent-Channel)干擾分析 ............................................................ 17
2.3 小細胞基站與FSS系統間干擾模型 .............................................................. 19
2.4 兩系統干擾之改善措施與辦法 ....................................................................... 22
第三章.......................................................................................................................... 24
小細胞基站與FSS系統間保護距離分析 ................................................................. 24
3.1 分析方法與標準探討 ....................................................................................... 24
vii
3.2 小細胞基站與FSS系統間之傳播模型 .......................................................... 24
3.3 最大帶內干擾容忍值分析 ............................................................................... 26
3.3.1 FSS系統干擾保護標準.............................................................................. 26
3.3.2 最大帶內干擾容忍值計算 ........................................................................ 27
3.3.3 最大帶內干擾容忍值參數標準探討與分析 ............................................ 28
3.4 小細胞基站與FSS地面站之保護距離分析 .................................................. 34
3.5 理論值分析結果與建議 ................................................................................... 36
第四章.......................................................................................................................... 38
ST-2衛星C頻段下鏈之干擾量測與評估 ................................................................ 38
4.1 量測設備與參數設定 ....................................................................................... 38
4.2 量測場域佈署與相關參數 ............................................................................... 44
4.3量測步驟流程 .................................................................................................... 47
4.4量測結果與分析 ................................................................................................ 50
第五章 總結................................................................................................................ 55
參考文獻...................................................................................................................... 56
                                

[1] FUJITSU ,"High-Capacity Indoor With Solution: Picocell or Femtocell", 2013
[2] KeyBridge ,"Protecting FSS Earth Stations", 2016
[3] FCC,"Amendment of the Commission’s Rules with Regard to Commercial Operations in the 3550-3650 MHz Band" ,2016
[4] ITU-R S.465-5,”Reference earth-station radiation pattern for use in coordination and interference assessment in the frequency range from 2 to about 30GHz”,1993
[5] ITU-R P.2001-2,” A general purpose wide-range terrestrial propagation model in the frequency range 30MHz to 50GHz”,2015
[6] ITU-R P.452-16,” Prediction procedure for the evaluation of interference between stations on the surface of the Earth at frequencies above about 0.1 GHz”,2015
[7] FCC,” Longley-Rice Methodology for Predicting Inter-Service Interference to Broadcast Television from Mobile Wireless Broadband Services in the UHF Band”2015
[8] ITU-R SM.337-6,” Frequency and distance separations”,2008
[9] HKT,"Change in the Allocation of the 3.4 – 3.7 GHz Band from Fixed Satellite Service to Mobile Service", 2018
[10] ITU-R S465,"Reference earth-station radiation pattern for use in coordination and interference assessment in the frequency range from 2 to about 30 GHz", 1993
[11] GB,"Electromagneti environment protection requirements for earth station" ,2009
57
[12] 3GPP Technical Specification TR 36.814,” Further advancements for E-UTRA physical layer aspects V9.0.0”,2010
[13] 3GPP Technical Specification,” Base Station (BS) radio transmission and reception V14.3.0 Release 14”,2016
[14] ITU-R S.1432-1,”Apportionment of the allowable error performance degradations to fixed-satellite service (FSS) hypothetical reference digital paths arising from time invariant interference for systems operating below 30 GHz”,2006
[15] ITU-R F.1336-1,”Reference Radiation Patterns of Omnidirectional, Sectoral and Other Antennas in Point-to-Multipoint Systems for Use in Sharing Studies in The Frequency Range from 1GHz to 70GHz”,2000
[16] ITU-R S.465-5,” Reference earth-station radiation pattern for use in coordination
甲、and interference assessment in the frequency range from 2 to about 30 GHz”,1993
[17] 3GPP Technical Specification TS 36.104 ,” Base Station (BS) radio transmission and reception V13.5.0 Release 13" ,2016
[18] FCC 47 CFR, “Amendment of the Commission’s Rules with Regard to Commercial Operations in the 3550- 3650MHz Band”,2016
[19] CCSA,”衛星固定業務(FSS)和IMT-Advanced在3.4-4.2GHz頻段的共存研究分析”,2007
[20] 郭鵬,2014,”3.4-3.6GHz頻段基於LTE熱點增強系統與衛星固定業務的共存研究”北京交通大學電子與通信工程,北京

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