載波聚合於LTE與LTE-A共存網路影響之研究

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姓名

駱皓愷(Hao-kai Lo) 查詢紙本館藏

畢業系所

通訊工程學系

論文名稱

載波聚合於LTE與LTE-A共存網路影響之研究
(Influence of Carrier Aggregation in LTE and LTE-A Coexistence Networks)

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摘要(中)

長程演進(LTE)是目前最合乎第四代行動通訊標準的網路技術。有賴於正交分頻多工(OFDMA)技術的發展，無線承載可一次載送更多資訊，高效率的傳輸能力將是新一代無線網路不可或缺的特徵，因此，先進長程演進(LTE-Advanced)所提出的目的，即是在現有的基礎上更精進，以求此技術可以更靠近未來行動網路；先進國際行動電信(IMT-Advanced)定義：定點傳輸達1Gbps、高速行動傳輸達100Mbps的通訊標準。為了達成上述技術規格，LTE-A與LTE的系統都必須擁有更大的傳輸頻帶與更強的傳輸功率，在第三代合作夥伴計畫(3GPP)所公布的第十版(Release 10)文件中，載波聚合(Carrier Aggregation)被加入LTE-A的標準之中，這也代表著，此技術將會讓演進型基地台(eNB: Evolved Node B)擁有更高的傳輸速率與更多的載波單元(Component Carriers)運用於排程之中。在早先的研究當中，使用較大功率傳輸的LTE將會使共存在同一地的分碼多工(CDMA)系統遭受鄰近通道干擾(ACI)的影響；換言之，在由LTE-A與LTE共同組成的網路當中，使用較大功率的LTE-A系統也會使環境中的LTE系統感受到明顯的ACI。首先，在研究當中，我們建立了六角形網路模型模擬現實環境中的基地台布建，並且提出於LTE-A與LTE共存網路的下行連線(Downlink)中，保護LTE用戶免於ACI影響的載波單元使用門檻值；另外，我們再進一步將使用門檻值改良為動態，使其在減少不同系統間產生的ACI同時，也能減少同系統間傳輸干擾。研究使用吞吐量與容量衰減作為評估指標，結果將說明本次研究在降低共存網路中ACI於LTE下行連線影響的同時，也讓LTE-A網路保持相當的網路效能。

摘要(英)

LTE (Long-term evolution) is the most compatible network with the standard of 4th generation mobile network. Owing to the OFDMA technology, the radio bearer can carry more information at the same time. There is no doubt that high efficiency transmission is the feature of the future, hence, LTE-Advanced (LTE-A) is aiming at closer the gap of next generation mobile network, which was promised to have about 1Gbps for local access and 100Mbps for high speed mobility by IMT-A (International Mobile Telecommunications Advanced). To meet the standard, system need to transmitted with wide spectral bandwidth, and more transmission power is needed in both LTE and LTE-A. In the 3GPP document-release 10, carrier aggregation, added to LTE-A standard, was proposed to supply high data rate for single user and more component carriers for one eNB (Evolved Node B) during scheduling. It is well known that LTE, using higher power during transmission, brought ACI (adjacent channel interference) in coexistence network with CDMA systems. On the other hand, LTE-A can also make a considerable ACI in the coexistence network, assembled by LTE and LTE-A systems. In this research, we built a hexagonal grid model to estimate the influence of ACI in the coexistence between LTE and LTE-A, and proposed a threshold for the usage of carrier aggregation in the downlink LTE-A network that is applied to protect the existing LTE users. Moreover, we also modified a dynamic threshold to reduce the interference in both inter-network and intra-network cases. The performance indicators are throughput loss and capacity loss. This research grants that the low affect in the downlink of LTE network by ACI as well as the decent performance of LTE-A network.

關鍵字(中)

★ LTE
★ LTE-Advanced
★ 載波聚合
★ 鄰近通道干擾
★ 共存網路

關鍵字(英)

★ Carrier Aggregation
★ LTE
★ LTE-Advanced
★ Coexistence Networks
★ Adjacent Channel Interference

論文目次

中文摘要 i
ABSTRACT ii
致謝 iii
CONTENTS iv
LIST OF FIGURES vi
LIST OF TABLES viii
1. INTRODUCTION 1
2. PRELIMINARIES 4
2.1. LTE System 4
2.2. LTE-Advanced System 6
2.2.1. Carrier Aggregation 7
2.2.2. Deployment Scenarios 9
2.3. Interference Scenario 10
2.3.1. Single System Scenario 10
2.3.2. Inter-System Scenario 10
3. SIMULATION SCENARIO AND METHODOLOGY 13
3.1. Network Deployment 13
3.2. Propagation Models 15
3.2.1. Okumura Hata Model 15
3.2.2. Cost 231 Hata Model 15
3.3. ACIR Model 16
3.4. Component Carrier Assignment 17
3.4.1. Proposed Method of Component Carrier Threshold 19
3.5. Program Flow Chart 22
4. PERFORMENCE EVALUATION AND ANALYSIS 23
4.1. Throughput Loss 23
4.2. Capacity Loss 26
5. CONCLUSION 30
6. REFERENCES 31

參考文獻

[1] 3GPP TR 36.913 v8.0.0, “Requirements for Further Advancements for E-UTRA (LTE-Advanced)”.
[2] 3GPP TR 36.942 V9.2.0, "Radio Frequency (RF) system scenarios (Release 9)", 3GPP, Technical Specification Group Radio Access Network, Evolved Universal Terrestrial Radio Access (EUTRA), Technical Report. 2009.
[3] R4-091749, Motorola, “Coexistence Studies of Contiguous Aggregation Deployment Scenarios for LTE‑A”, 3GPP TSG RAN WG4#51, San Francisco, USA, May 2009.
[4] R4-094599, “ACIR Models for LTE-A coexistence simulation,” 3GPP TSG RAN Working Group 4 (Radio) meeting #53, Huawei, Nov. 09 – Nov. 13, 2009
[5] Stefania Sesia, Issam Toufik, Matthew Baker, “LTE, The UMTS Long Term Evolution: From Theory to practice”, ISBN: 978-0-470-69716-0, WILEY-INTERSCIENCE,p.113-134, April. 2009.
[6] Ratasuk, R.; Tolli, D.; Ghosh, A.; "Carrier Aggregation in LTE-Advanced," Vehicular Technology Conference (VTC 2010-Spring), 2010 IEEE 71st , pp.1-5, 16-19 May 2010.
[7] R1-082448, Huawei, “Carrier aggregation in Advanced E-UTRA”, 3GPP TSG RAN WG1#53bis, Warsaw, Poland, June 30 – July 4, 2008.
[8] 3GPP TR25.913, Requirements for Evolved UTRA (E-UTRA) and Evolved UTRAN (E-UTRAN).
[9] R1-091214, Motorola, “On Feasibility and Features of Deployment Scenarios for LTE A”, 3GPP TSG RAN4#50bis, Seoul, South Korea, 23 – 27 March 2009.
[10] Wei Wang, Zhaoyang Zhang, Aiping Huang, "Spectrum Aggregation: Overview and Challenges", Network Protocols and Algorithms, vol. 2, no. 1, pp. 184 - 196, May 2010.
[11] R1-082468, “Carrier aggregation in LTE-Advanced”, Ericsson, 3GPP TSG RAN1#53bis, Warsaw, June 2008.
[12] Zheng Ruiming; Zhang Xin; Li Xi; Pan Qun; Fang Yinglong; Yang Dacheng; , "Performance Evaluation on the Coexistence Scenario of Two 3GPP LTE Systems," Vehicular Technology Conference Fall (VTC 2009-Fall), 2009 IEEE 70th , pp.1-6, 20-23 Sept. 2009.
[13] Xueqing Huang; Qimei Cui; Xiaofeng Tao; , "Coexistence studies involving LTE-advanced," Broadband Network and Multimedia Technology (IC-BNMT), 2010 3rd IEEE International Conference on , pp.273-277, 26-28 Oct. 2010.
[14] Hui Jia; Qingyu Miao; Changchuan Yin; Huarui Wu; Yan Ma; , "Performance analysis of coexistence between LTE-TDD and TD-SCDMA," Communications Technology and Applications, 2009. ICCTA ’’09. IEEE International Conference on , vol., no., pp.303-307, 16-18 Oct. 2009.
[15] T. R. Henderson, M. Lacage, and G. F. Riley. “Network Simulations with the ns-3 Simulator”, ACM SIGCOMM’’08, August 2008.
[16] N. Baldo, M. Miozzo, M. Requena, J. Nin Guerrero, “An Open Source Product-Oriented LTE Network Simulator based on ns-3”, 14th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems (MSWIM 2011), Miami Beach, FL (USA), 31-4 November 2011.
[17] R4-070743, “Coexistence Simulation Results for 20MHz E-UTRA -> UTRA FDD Uplink”, Motorola, 3GPP TSG RAN WG4 (Radio) Meeting #43, Kobe, Japan, 7 – 11 May 2007.
[18] Yagyu, K.; Nakamori, T.; Ishii, H.; Iwamura, M.; Miki, N.; Asai, T.; Hagiwara, J.; , "Investigation on Mobility Management for Carrier Aggregation in LTE-Advanced," Vehicular Technology Conference (VTC Fall), 2011 IEEE , pp.1-5, 5-8 Sept. 2011.
[19] Junren Chang; Yajuan Li; Shulan Feng; Haiguang Wang; Chengzhen Sun; Zhang, P.; , "A Fractional Soft Handover Scheme for 3GPP LTE-Advanced System," Communications Workshops, 2009. ICC Workshops 2009. IEEE International Conference on, pp.1-5, 14-18 June 2009.
[20] Man Hung Ng; Shen-De Lin; Li, J.; Tatesh, S.; , "Coexistence studies for 3GPP LTE with other mobile systems," Communications Magazine, IEEE , vol.47, no.4, pp.60-65, April 2009.

指導教授

吳中實(Jung-shyr Wu)

審核日期

2012-7-23

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