5G高低频无线协作组网及关键技术
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摘要
作为第5代移动通信系统(5G)的一种重要组网方式,基于控制用户分离的高低频无线协作组网在提升区域覆盖能力的同时,还能大幅提升系统整体频谱效率,为接入用户提供无缝高速体验。系统性地介绍了高低频无线协作组网的网络架构及其关键技术,并深入探究无线回程、干扰协调、越区切换等关键技术的研究现状和未来的发展趋势。研究具有超高覆盖率和系统容量的高低频无线协作组网方案对于未来超密集组网的实现有着重要的理论意义。
As an important networking method of 5G, the multi-bands wireless collaborative networking based on the control user separation will improve the capability of regional coverage, and boost the spectrum efficiency of overall system.In this way, it can provide the high speed seamless experience for accessed users.In this paper, the network architecture and some key technologies of multi-bands wireless collaborative networking are introduced systematically, then the research status and future development trend of wireless backhaul, interference coordination,and handover are discussed. The research of multi-bands wireless collaborative networking with ultra coverage rate and system capacity has important theoretical significances for the realization of ultra dense network(UDN).
As an important networking method of 5G, the multi-bands wireless collaborative networking based on the control user separation will improve the capability of regional coverage, and boost the spectrum efficiency of overall system.In this way, it can provide the high speed seamless experience for accessed users.In this paper, the network architecture and some key technologies of multi-bands wireless collaborative networking are introduced systematically, then the research status and future development trend of wireless backhaul, interference coordination,and handover are discussed. The research of multi-bands wireless collaborative networking with ultra coverage rate and system capacity has important theoretical significances for the realization of ultra dense network(UDN).
引文
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[2]NIU C,LI Y,HU R Q,et al.Fast and Efficient Radio Resource Allocation in Dynamic UltraDense Heterogeneous Networks[J].IEEE Access,2017,(5):1911-1924.DOI:10.1109/ACCESS.2017.2653798
[3]倪善金,赵军辉.5G无线通信网络物理层关键技术[J].电信科学,2015,31(12):48-53
[4]MOHAMED A,ONIRETI O,IMRAN M A,et al.Control-Data Separation Architecture for Cellular Radio Access Networks:A Survey and Outlook[J].IEEE Communications Surveys&Tutorials,2016,18(1):446-465.DOI:10.1109/COMST.2015.2451514
[5]GUDIPATI A,PERRY D,LI L E,et al.Soft RAN:Software Defined Radio Access Network[C]//Proceedings of the Second ACM SIGCOMM Workshop on Hot Topics in Software Defined Networking.USA:ACM,2013:25-30
[6]AGYAPONG P K,IWAMURA M,STAEHLE D,et al.Design Considerations for a 5G Network Architecture[J].IEEE Communications Magazine,2014,52(11):65-75.DOI:10.1145/2491185.2491207
[7]ALI AHMAD H,CICCONETTI C,DE la O A,et al.CROWD:An SDN Approach for Dense Nets[C]//2013 Second European Workshop on Software Defined Networks(EWSDN).USA:IEEE,2013:25-31.DOI:10.1109/EWSDN.2013.11
[8]ISHII H,KISHIYAMA Y,TALAJASHI H.A Novel Architecture for LTE-B:C-Plane/U-Plane Split and Phantom Cell Concept[C]//Globecom Workshops.USA:IEEE,2012:624-630.DOI:10.1109/GLOCOMW.2012.6477646
[9]李,彭木根.基于虚拟小区的分层异构无线组网方案[J].电信科学,2013,29(1):8-14
[10]赵天宇.超密集组网中联合传输与联合资源分配算法的研究[D].哈尔滨:哈尔滨工业大学,2017
[11]张宝亚.5G承载网技术和优化组网[J].中兴通讯技术,2018,24(1):42-48.DOI:10.3969/j.issn.1009-6868.2018.01.009
[12]GE X,CHENG H,GUIZANI M,et al.5G Wireless Backhaul Networks:Challenges and Research Advances[J].IEEE Network,2014,28(6):6-11.DOI:10.1109/MNET.2014.6963798
[13]HUR S,KIM T,LOVE D J,et al.Millimeter Wave Beamforming for Wireless Backhaul and Access in Small Cell Networks[J].IEEE Transactions Communications,2013,61(10):4391-4403.DOI:10.1109/TCOMM.2013.090513.120848
[14]NI S,ZHAO J,GONG Y.Optimal Pilot Design in Massive MIMO Systems Based on Channel Estimation[J].IET Communications,2016,11(7):975-984.DOI:10.1109/ISWCS.2015.7454372
[15]TAORI R,SRIDHARAN A.Point-toMultipoint In-Band mm Wave Backhaul for5G Networks[J].IEEE Wireless Communications,2015,53(1):195-201.DOI:10.1109/MCOM.2015.7010534
[16]BLEICHER A.Millimeter Waves May Be the Future of 5G Phones[EB/OL].[2018-02-08].https://spectrum.ieee.org/telecom/wireless/millimeter-waves-may-be-the-future-of-5g-phones
[17]El AYACH O,RAJAGOPAL S,ABU-SURRA S,et al.Spatially Sparse Precoding in Millimeter Wave MIMO Systems[J].IEEE Transactions Wireless Communications,2014,13(3):1499-1513.DOI:10.1109/TWC.2014.011714.130846
[18]RUSU C,MENDEZ-RIAL R,GONZALEZPRELCICY N,et al.Low Complexity Hybrid Sparse Precoding and Combining inMillimeter Wave MIMO Systems[C]//2015IEEE International Conference on Communications(ICC).USA:IEEE,2015:1340-1345.DOI:10.1109/ICC.2015.7248509
[19]LOPEZ-PEREZ D,GUZENC I,GUILLAUME D L R,et al.Enhanced Intercell Interference Coordination Challenges in Heterogeneous Networks[J].IEEE Wireless Communications,2011,18(3):22-30.DOI:10.1109/MWC.2011.5876497
[20]陈晓冬,熊尚坤,王庆扬.LTE小区间干扰抑制技术分析[J].电信科学,2010,(5):16-21
[21]CHANG Y J,TAO Z,ZHANG J,et al.A Graph-Based Approach to Multi-Cell OFDMA Downlink Resource Allocation[C]//2008 Global Telecommunications Conference.USA:IEEE,2008:1-6.DOI:10.1109/GLOCOM.2008.ECP.713
[22]NAM W,BAI D,LEE J,et al.Advanced Interference Management for 5G Cellular Networks[J].IEEE Communications Magazine,2014,52(5):52-60.DOI:10.1109/MCOM.2014.6815893
[23]LI Y,JIANG T,LUO K,et al.Green Heterogeneous Cloud Radio Access Networks:Potential Techniques,Performance Trade-offs,and Challenges[J].IEEE Communications Magazine,2017,55(11):33-39.DOI:10.1109/MCOM.2017.1600807
[24]郭静东.LTE-Advanced中Co MP技术研究[D].西安:西安电子科技大学,2010
[25]IMT-2020(5G)Promotion Group.5G Vision and Requirements,White Paper[EB/OL].(2014-05-28)[2018-02-08].http://www.IMT-2020.cn
[26]ZTE.HO Performance Improvement in hetnet:R2-130957[Z],3GPP RAN2#81b,2014
[27]BILENILEN T,DUTONG T Q,CANBERK B.Optimal e Node B Estimation for 5G IntraMacrocell Handover Management[C]//Proceedings of the 12th ACM Symposium on Qo S and Security for Wireless and Mobile Networks.USA:ACM,2016:87-93.DOI:10.1145/2988272.2988284
[28]ZHAO J H,LIU Y Y,GONG Y,et al.A DualLink Soft Handover Scheme for C/U Plane Split Network in High-Speed Railway[J].IEEE Access,2018,(1):2169-3536.DOI:10 .1109/ACCESS.2018.2794770