5G若干关键技术评述

张平; 陶运铮; 张治

doi:10.11959/j.issn.1000-436x.2016130

您当前的位置：

首页 >

文章列表页 >

5G若干关键技术评述

专题：下一代移动通信及网络的关键技术 | 更新时间：2024-06-05

- 5G若干关键技术评述
- Survey of several key technologies for 5G
- 通信学报 2016年37卷第7期页码：15-29
- 作者机构：
  
  北京邮电大学信息与通信工程学院，北京 100876
- 作者简介：
  
  [ "张平（1959-），男，陕西汉中人，北京邮电大学教授、博士生导师，主要研究方向为无线通信、认知无线网络、TD-LTE、OFDM。" ]
  [ "陶运铮（1989-），男，江苏无锡人，北京邮电大学博士生，主要研究方向为基于能量收集的下一代无线网络、认知无线网络。" ]
  [ "张治（1977-），男，北京人，博士，北京邮电大学副教授，主要研究方向为信道编码、射频测试技术、无线资源管理。" ]
- 基金信息：
  
  国家自然科学基金创新研究群体基金资助项目(61421061);华为开放课题基金资助项目
- DOI：10.11959/j.issn.1000-436x.2016130
  中图分类号： TN929
- 网络出版日期：2016-07，
  
  纸质出版日期：2016-07-25
- 稿件说明：
移动端阅览
张平, 陶运铮, 张治. 5G若干关键技术评述[J]. 通信学报, 2016,37(7):15-29.

Ping ZHANG, Yun-zheng TAO, Zhi ZHANG. Survey of several key technologies for 5G[J]. Journal of communications, 2016, 37(7): 15-29.
张平, 陶运铮, 张治. 5G若干关键技术评述[J]. 通信学报, 2016,37(7):15-29. DOI： 10.11959/j.issn.1000-436x.2016130.

Ping ZHANG, Yun-zheng TAO, Zhi ZHANG. Survey of several key technologies for 5G[J]. Journal of communications, 2016, 37(7): 15-29. DOI： 10.11959/j.issn.1000-436x.2016130.

摘要

第五代移动通信网络（5G）目前得到了全球企业、研究院所和高校的广泛关注和大量研究。详细介绍和总结了5G的发展历程和国内外研究进展，分析了基于虚拟化的5G网络架构。从无线传输、无线接入、网络这3个角度，深入全面地介绍了5G潜在的关键技术及最新进展，包括大规模多天线、全双工、信道建模与信道编码等，分析了其中一些关键技术的优缺点及未来可研究方向。最后，展望了5G未来发展的重点任务及主要方向。

Abstract

The fifth-generation (5G) mobile communications system has got extensive attention and research by enter-prises

research institutes and universities of the world at present. The development history and domestic and abroad re-search progresses of 5G were described and summarized in detail. 5G network architecture based on virtualization were analyzed. From wireless transmission

wireless access and network perspectives

the potential key technologies of 5G

in-cluding massive MIMO

full-duplex

channel modeling

channel coding

etc. and their latest progress are introduced comprehensively and thoroughly. Some advantages

disadvantages and future research directions of some key technolo-gies are analyzed. At last

key tasks and main directions of the future development of 5G are prospected.

关键词

Keywords

references

IMT-2020. 5G Concept [EB/OL ] . http://www.imt-2020.org.cn/zh/documents/listByQuery?currentPage=1＆content http://www.imt-2020.org.cn/zh/documents/listByQuery?currentPage=1＆content .

ITU-R M 2083-0. IMT vision, framework and overall objectives of the future development of IMT for 2020 and beyond [S ] . ITU-R, Document 5/199-E , 2015 .

AGYAPONG P , IWAMURA M , STAEHLE D , et al . Design consid-erations for a 5G network architecture [J ] . Communications Magazine, IEEE , 2014 , 52 ( 11 ): 65 - 75 .

TULLBERG H , POPOVSKI P , GOZALVEZ-SERRANO D , et al . METIS system concept: the shape of 5G to come [J ] . IEEE Communications Magazine , 2015 .

Nokia . 5G masterplan [EB/OL ] . http://networks.nokia.com/innova-tion/5g http://networks.nokia.com/innova-tion/5g .

Ericsson 5G systems-enabling industry and society transformation [EB/OL ] . http://www.ericsson.com/res/docs/whitepapers/what-is-a-5g-system.pdf http://www.ericsson.com/res/docs/whitepapers/what-is-a-5g-system.pdf .

华为．华为4.5G荣获两项GTI年度大奖：杰出贡献推动TDD+全速发展 [EB/OL ] ． http://www.huawei.com/cn/news/2016/2/rong-huo-2xiang-GTI-2015niandu-da-jiang http://www.huawei.com/cn/news/2016/2/rong-huo-2xiang-GTI-2015niandu-da-jiang , 2016 .

HUAWEI . Huawei 4.5G won two GTI award of the year: outstanding contributions to promote TDD+ development at full speed [EB/OL ] . http://www.huawei.com/cn/news/2016/2/rong-huo-2xiang-GTI-2015niandu-da-jiang http://www.huawei.com/cn/news/2016/2/rong-huo-2xiang-GTI-2015niandu-da-jiang , 2016 .

中兴通讯． Pre5G，用技术创新勾画5G蓝图 [J ] ．通信产业报， 2014 ( 34 ).

ZTE . Pre5G, draw 5G blueprint by technical innovation [J ] . Communications Weekly , 2014 ( 34 ).

GUPTA A , JHA R K . A survey of 5G network: architecture and emerging technologies [J ] . IEEE Access , 2015 , 3 : 1206 - 1232 .

MARZETTA T L . Non-cooperative cellular wireless with unlimited numbers of base station antennas [J ] . IEEE Transactions on Wireless Communications , 2010 , 9 ( 11 ): 3590 - 3600 .

ZENG Y , ZHANG R , CHEN Z N . Electromagnetic lens-focusing antenna enabled massive MIMO: performance improvement and cost reduction [C ] // IEEE/CIC International Conference on Communication in China , c 2014 : 454 - 459 .

MOISCH A F , ASPLUND H , HEDDERGOTT R , et al . The COST259 directional channel model-part I: overview and methodology [J ] . IEEE Transactions On Wireless Communications , 2007 , 5 ( 12 ): 3421 - 3433 .

CZINK N , OESTGES C . The COST273 MIMO channel model: there kinds of clusters [C ] // IEEE 10th International Symposium on Spread Spectrum Techniques and Applications . c 2008 : 282 - 286 .

LIU L , OESTGES C , POUTANEN J , et al . The COST2100 MIMO channel model [J ] . IEEE Journals ＆ Magazines , 2012 , 19 ( 6 ): 92 - 99 .

3GPP. Spatial channel model for multiple input multiple output (MIMO) simulations [S ] . 3GPP TR 25.996 version 12.0.0 Release 12 , 2014 .

3GPP. Further advancements for E-UTRA physical layer aspects [S ] . 3GPP TR 36.814 Release 9 , 2010 .

3GPP. Study on 3D channel model for LTE [S ] . 3GPP TR 36.873 , 2015 .

BAUM D S , HANSEN J , SALO J . An interim channel model for beyond-3G systems: extending the 3GPP spatial channel model (SCM) [C ] // IEEE 61st Vehicular Technology Conference , c 2005 : 3132 - 3136 .

KYOSTI P , MEINILA J , HENTILA L , et al . WINNER II Channel Models part II Radio Channel Measurement and Analysis Results [S ] . 2007 .

ITU-R . Guidelines for evaluation of radio interface technologies for IMT-Advanced [S ] . ITU-RM 2135 , 2008 .

NURMEL A V , KARTTUNEN A , ROIVAINEN A , et al . Initial channel models based on measurements [S ] . Deliverable D1, METIS . 2015 .

TOMMI J , PEKKA K . Device-to-device extension to geometry-based stochastic channel models [C ] // IEEE European Conference on Anten-nas and Propagation(EuCAP) . c 2015 : 1 - 4 .

LI Y , WANG Q , ZHONG Z D , et al . Three-dimensional modeling, simulation and evaluation of Device-to-Device channels [C ] // IEEE In-ternational Symposium on Antennas and Propagation ＆ USNC/URSI National Radio Science Meeting . c 2015 : 1808 - 1809 .

ZHOU Z , GAO X , FANG J , et al . Spherical wave channel and analysis for large linear array in LOS conditions [C ] // IEEE Globecom Work-shop . c 2015 : 1 - 6 .

GAO X , TUFVESSON F , EDFORS O , et al . Measured propagation characteristics for very-large MIMO at 2.6 GHz [C ] // IEEE Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers(ASILOMAR) . c 2012 : 295 - 299 .

WU S , WANG C X , AGGOUNE E H M , et al . A non-stationary 3-D wideband twin-cluster model for 5g massive MIMO channels [J ] . IEEE Journal ＆ Magazines , 2014 , 32 ( 6 ): 1207 - 1218 .

GAO X , TUFVESSON F , EDFORS O . Massive MIMO chan-nels-measurements and models [C ] // IEEE Asilomar Conference on Signals, Systems and Computers . c 2013 : 280 - 284 .

RAPPAPORT T S , SUN S , MAYZUS R , et al . Millimeter wave mobile communications for 5G cellular: it will work! [J ] . IEEE Journals ＆Magazines , 2013 , 1 ( 1 ): 335 - 349 .

LI Q , SHIRANI-MEHR H , BALERCIA T , et al . Millimeter wave channel model and system design considerations [C ] // IEEE International Conference on Communication Workshop(ICCW) . c 2015 : 1214 - 1219 .

BAI T Y , DESAI V , ROBERT W , et al . Millimeter wave cellular chan-nel models for system evaluation [C ] // IEEE International Conference on Computing, Networking and Communications(ICNC) . c 2014 : 178 - 182 .

FOSSORIER , MARC P C , MIODRAG M , et al . Reduced complexity iterative decoding of low-density parity check codes based on belief propagation [J ] . IEEE Transactions on Communications , 1999 , 47 ( 5 ): 673 - 680 .

YAZDANI , MOHAMMAD R , SAIED H , et al . Improving belief propagation on graphs with cycles [J ] . Communications Letters,IEEE , 2004 , 8 ( 1 ): 57 - 59 .

SONG H X , CRUZ J. R . Reduced-complexity decoding of Q-ary LDPC codes for magnetic recording [J ] . IEEE Transactions on Mag-netics , 2003 , 39 ( 2 ): 1081 - 1087 .

PENG R , CHEN R R . Application of non-binary LDPC codes for communication over fading channels using higher order modulations [C ] // IEEE Global Telecommunications Conference (GLOBE-COM'06) . c 2006 .

BOUTROS J , GHAITH A , WU Y Y . Non-binary adaptive LDPC codes for frequency selective channels: code construction and iterative decoding [C ] // IEEE Information Theory Workshop . c 2006 : 184 - 188 .

BYERS G J , TAKAWIRA F . Non-binary and concatenated LDPC codes for multiple-antenna transmission [C ] // 7th AFRICON Conference in Africa . c 2004 : 83 - 88 .

GUO F , HANZO L . Low complexity non-binary LDPC and modula-tion schemes communicating over MIMO channels [C ] // IEEE Vehicu-lar Technology Conference (VTC'04) . c 2004 : 1294 - 1298 .

PENG R , CHEN R R . Design of non-binary LDPC codes over GF(q) for multiple-antenna transmission [C ] // IEEE Military Comm Conf (MILCOM'06) . c 2006 : 1 - 7 .

ARIKAN E . Channel polarization: a method for constructing capac-ity-achieving codes for symmetric binary-input memoryless channels [J ] . IEEE Transactions on Information Theory , 2009 , 55 ( 7 ): 3051 - 3073 .

ARIKAN E . On the origin of polar coding [C ] // arXiv preprint arXiv:1511.04838 ( 2015 ).

ESLAMI , ALI , HOSSEIN P N . A practical approach to polar codes [C ] // 2011 IEEE International Symposium on Information Theory Proceedings (ISIT) ,IEEE, c 2011 .

SABHARWAL A , SCHNITER P , GUO D , et al . In-band full-duplex wireless: challenges and opportunities [J ] . IEEE Journal on Selected Areas in Communications , 2014 , 32 ( 9 ): 1637 - 1652 .

BHARADIA D , MCMILIN E , KATTI S . Full duplex radios [J ] . ACM SIGCOMM Computer Communication Review, ACM , 2013 , 43 ( 4 ): 375 - 386 .

EVERETT E , SABHARWAL A . Spatial self-interference isolation for in-band full-duplex wireless: a degrees-of-freedom analysis [J ] . arXiv preprint arXiv:1506.03394 , 2015 .

EVERETT E , SAHAI A , SABHARWAL A . Passive self-interference suppression for full-duplex infrastructure nodes [J ] . IEEE Transactions on Wireless Communications , 2014 , 13 ( 2 ): 680 - 694 .

JOHNSTON S E , FIORE P D . Full-duplex communication via adap-tive nulling [C ] // 2013 Asilomar Conference on Signals, Systems and Computers .IEEE, c 2013 : 1628 - 1631 .

FOROOZANFAR E , FRANEK O , TATOMIRESCU A , et al . Full-duplex MIMO system based on antenna cancellation technique [J ] . Electronics Letters , 2014 , 50 ( 16 ): 1116 - 1117 .

LAUGHLIN L , BEACH M A , MORRIS K A , et al . Optimum single antenna full duplex using hybrid junctions [J ] . IEEE Journal on Se-lected Areas in Communications , 2014 , 32 ( 9 ): 1653 - 1661 .

ASKAR R , KAISER T , SCHUBERT B , et al . Active self-interference cancellation mechanism for full-duplex wireless transceivers [C ] // 2014 9th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM) .IEEE, c 2014 : 539 - 544 .

CHUNG M K , SIM M S , KIM J , et al . Prototyping real-time full duplex radios [J ] . Communications Magazine, IEEE , 2015 , 53 ( 9 ): 56 - 63 .

WANG J , ZHAO H , TANG Y . A RF adaptive least mean square algo-rithm for self-interference cancellation in co-frequency co-time full duplex systems [C ] // 2014 IEEE International Conference on Communications (ICC) .IEEE, c 2014 : 5622 - 5627 .

ZHOU M , SONG L , LI Y , et al . Simultaneous bidirectional link selection in full duplex MIMO systems [J ] . IEEE Transactions on Wireless Communications , 2015 , 14 ( 7 ): 4052 - 4062 .

LIAO Y , WANG T , SONG L , et al . Listen-and-talk: protocol design and analysis for full-duplex cognitive radio networks [J ] . arXiv preprint arXiv:1602.07579 , 2016 .

SHARMA A , GANTI R K , MILLETH J K . Joint backhaul-access analysis of full duplex self-backhauling heterogeneous networks [J ] . arXiv preprint arXiv:1601.01858 , 2016 .

KIEU T N , DO D T , XUAN X N , et al . Wireless information and power transfer for full duplex relaying networks: performance analy-sis [M ] // AETA 2015: Recent Advances in Electrical Engineering and Related Sciences . Springer International Publishing , 2016 : 53 - 62 .

ZHENG G . Joint beamforming optimization and power control for full-duplex mimo two-way relay channel [J ] . IEEE Transactions on Signal Processing , 2015 , 63 ( 3 ): 555 - 566 .

TAO Y , LIU L , LIU S , et al . A survey: several technologies of non-orthogonal transmission for 5G [J ] . China Communications , 2015 , 121 ( 10 ): 1 - 15 .

DAI L , WANG B , YUAN Y , et al . Non-orthogonal multiple access for 5G: solutions, challenges, opportunities, and future research trends [J ] . IEEE Communications Magazine , 2015 , 53 ( 9 ): 74 - 81 .

IMT-2020(5G) Promotion Group . 5G无线技术架构白皮书 [R ] . 2015 .

IMT-2020(5G) Promotion Group . white paper, wireless technology architecture for 5G [R ] . 2015 .

HIGUCHI K , KISHIYAMA Y . Non-orthogonal access with successive interference cancellation for future radio access [C ] // APWCS2012 , c 2012 .

AL-IMARI M , XIAO P , IMRAN M A , et al . Uplink non-orthogonal multiple access for 5G wireless networks [C ] // Wireless Communications Systems (ISWCS), 2014 11th International Symposium on Barcelona .IEEE, c 2014 : 781 - 785 .

AL-IMARI M , XIAO P , IMRAN M A , et al . Uplink non-orthogonal multiple access for 5G wireless networks [C ] // 2014 11th International Symposium on Wireless Communications Systems (ISWCS) . c 2014 : 781 - 785 .

NIKOPOUR H , BALIGH H . Sparse code multiple access [C ] // IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) . c 2013 : 332 - 336 .

LU L , CHEN Y , GUO W , et al . Prototype for 5G new air interface technology SCMA and performance evaluation [J ] . China Communications . c 2015 : 38 - 48 .

TAHERZADEH M , NIKOPOUR H , BAYESTEH A , et al . SCMA Codebook Design [C ] // 2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall) . Vancouver, BC , c 2014 : 1 - 5 .

WU Y , ZHANG S , CHEN Y . Iterative multiuser receiver in sparse code multiple access systems [C ] // 2015 IEEE International Conference on Communications (ICC) . c 2015 : 2918 - 2923 .

ZHAI D , SHENG M , WANG X , et al . Rate and energy maximization in SCMA networks with wireless information and power transfer [J ] . IEEE Communications Letters , 2016 , 20 ( 2 ): 360 - 363 .

LIU T , LI X , QIU L . Capacity for downlink massive MIMO MU-SCMA system [C ] // Wireless Communications ＆ Signal Processing (WCSP) . c 2015 : 1 - 5 .

Datang Telecom Technology ＆ Industry Group . Spectrum-efficiency enhancing techniques for 5G [R ] . IMT-2020 Promotion Group 5G Summit , Beijing, China , 2014 .

康绍莉，戴晓明，任斌．面向5G的PDMA图样分割多址接入技术 [J ] ．电信网技术， 2015 ( 5 ): 43 - 47 .

KANG S L , DAI X M , REN B . Pattern division multiple access for 5G [J ] . Telecommunication Network Technology , 2015 ( 5 ): 43 - 47 .

YUAN Z , YU G , LI W . Multi-user shared access for 5G [C ] // Tele-commun, Network Technology . c 2015 : 28 - 30 .

Samsung . Performance evaluation of dynamic TDD reconfiguration [R ] . 3GPP R1-120196 , 2012 .

Huawei . Evaluation of TDD traffic adaptive DL-UL reconfiguration in isolated cell scenario [R ] . 3GPP R1-120059, HiSilicon , 2012 .

DEMESTICHAS P , GEORGAKOPOULOS A , KARVOUNAS D , et al . 5G on the horizon: key challenges for the radio access network [J ] . IEEE Communications Magazine , 2013 , 8 ( 3 ): 47 - 53 .

SHEN Z , KHORYAEV A , ERIKSSON E , et al . Dynamic uplink-downlinkconfiguration and interference management in TD-LTE [J ] . IEEE Communications Magazine , 2012 , 50 ( 11 ): 51 - 59 .

Further enhancements to LTE TDD for DL-UL interference management and traffic adaption [S ] . 3GPP TR 36.828 , 2012 .

Evaluation on TDD UL/DL reconfiguration with interference mitiga-tion in multi-cell Pico scenario [S ] . 3GPP R1-122209 , 2012 .

CADAMBE V R , JAFAR S A . Interference alignment and degrees of freedom of the k-user interference channel [J ] . IEEE Transactions on Information Theory , 2008 , 54 ( 8 ): 3425 - 3441 .

ROST P , BERNARDOS C J , DOMENICO A D , et al . Cloud technologies for flexible 5G radio access networks [J ] . IEEE Communications Magazine , 2014 , 52 ( 5 ): 68 - 76 .

CHECKO A , CHRISTIANSEN H L , YAN Y , et al . Cloud RAN for mobile networks—a technology overview [J ] . IEEE Communications Surveys ＆ Tutorial , 2015 , 17 ( 1 ): 405 - 426 .

ANGER F . Smart mobile broadband [C ] // RAN Evolution to the Cloud Workshop , c 2013 .

China Mobile . C-RAN the road towards green ran [R ] . China Mobile Research Institute , 2011 .

NAMBA S , MATSUNAKA T , WARABINO T et al . Colony-RAN architecture for future cellular network [C ] // FutureNetw Mobile Sum-mit . c 2012 : 1 - 8 .

C-RAN the road towards green ran [R ] . China Mobile Research Institute , 2011 .

LIU A , LAU V . Joint power and antenna selection optimization for energy-efficient large distributed MIMO networks [C ] // IEEE ICCS . c 2012 : 230 - 234 .

LIU L , YANG F , WANG R et al . Analysis of handover performance improvement in cloudRAN architecture [C ] // 7th Int ICST Conf CHI-NACOM . c 2012 : 850 - 855 .

SPENCER Q H , SWINDLEHURST A L , HAARDT M . Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO chan-nels [J ] . IEEE Transactions on Signal Processing , 2014 , 52 ( 4 ): 20 - 31 .

5G vision and requirements [Z ] . China IMT-2020 (5G) Promotion Group Whiter Paper , 2014 .

YU C H , DOPPLER K , RIBEIRO C B , et al . Resource sharing opti-mization for device-to-device communication underlaying cellular networks [J ] . IEEE Transactions on Wireless Communications , 2011 , 10 ( 8 ): 2752 - 2763 .

ZHAO W , WANG S . Resource sharing scheme for device-to-device communication underlaying cellular networks [J ] . IEEE Transactions on Communications , 2015 , 63 ( 12 ): 4838 - 4848 .

XING H , RENFORS M . Resource management schemes for network assisted device-to-device communication for an integrated OFDMA cellular system [C ] // 2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) .IEEE, c 2015 : 850 - 855 .

REN Y , LIU F , LIU Z , et al . Power control in D2D-based vehicular communication networks [J ] . IEEE Transactions on Vehicular Technology , 2015 , 61 ( 12 ): 5547 - 5562 .

JUNG Y , FESTIJO E , PERADILLA M . Joint operation of routing control and group key management for 5G ad hoc D2D networks [C ] // 2014 International Conference on Privacy and Security in Mobile Systems (PRISMS) .IEEE, c 2014 : 1 - 8 .

WANG J , ZHANG X . Adaptive power control for maximizing channel capacity over Full-Duplex D2D Q-OFDMA ad hoc networks [C ] // 2015 IEEE Global Communications Conference (GLOBECOM) .IEEE, c 2015 : 1 - 6 .

MACH P , BECVAR Z , VANEK T . In-band device-to-device commu-nication in OFDMA cellular networks: a survey and challenges [J ] . Communications Surveys ＆ Tutorials ,IEEE, 2015 , 17 ( 4 ): 1885 - 1922 .

LEI L , ZHONG Z , LIN C , et al . Operator controlled device-to-device communications in LTE-advanced networks [J ] . IEEE Wireless Communications , 2012 , 19 ( 3 ): 96 .

ZULHASNINE M , HUANG C , SRINIVASAN A . Efficient resource allocation for device-to-device communication underlaying LTE net-work [C ] // 2010 IEEE 6th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob) .IEEE, c 2010 : 368 - 375 .

ELSAWY H , HOSSAIN E , ALOUINI M S . Analytical modeling of mode selection and power control for underlay D2D communication in cellular networks [J ] . IEEE Transactions on Communications , 2014 , 62 ( 11 ): 4147 - 4161 .

CHO B , KOUFOS K , JANTTI R . Spectrum allocation and mode selection for overlay D2D using carrier sensing threshold [C ] // 2014 9th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM) .IEEE, c 2014 : 26 - 31 .

HAN M H , KIM B G , LEE J W . Subchannel and transmission mode scheduling for D2D communication in OFDMA networks [C ] // Ve-hicular Technology Conference (VTC Fall) .2012 IEEE, c 2012 : 1 - 5 .

LEI L , SHEN X , DOHLER M , et al . Queuing models with applica-tions to mode selection in device-to-device communications underlay-ing cellular networks [J ] . IEEE Transactions on Wireless Communications , 2014 , 13 ( 12 ): 6697 - 6715 .

浏览量

5588

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

OTN+5G教育专网，赋能数字化转型——以深圳市宝安区教育专网建设为例

IPv6与5G融合的新型数字底座研究与构建

移动通信网的内生安全共性问题及破解之道

高精度室内定位研究评述及未来演进展望

面向未来移动网络密集连接的关键技术综述