5G非授权频段组网技术

doi:10.11959/j.issn.1000-0801.2019178

Abstract

Abstract:

Due to the growing demand for mobile communication services, the shortage of licensed frequency bands is becoming more and more obvious. Therefore 5G networks begin to consider deployment in the unlicensed spectrum, that is, to employ the NR protocol in unlicensed spectrum to provide access services. The main challenge of 5G networking in the unlicensed spectrum is to support LBT mechanism considering 5G new technical features and thus to guarantee fairness with existing systems as well as efficient spectrum sharing, the impact of LBT on 5G networking in the unlicensed spectrum was analyzed, the relevant standardization progress and challenges was summarized. Feasible and innovative solutions were proposed for some key technical issues to minimize the impact of LBT failure and thus to ensure the performance of 5G networking in the unlicensed spectrum.

Key words: 5G, unlicensed spectrum, listen before talk

CLC Number:

TP393

Min XU, Nan HU, Nan LI. 5G-based networking in unlicensed spectrum[J]. Telecommunications Science, 2019, 35(7): 7-16.

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References 17

[1]	IMT-2020(5G) Promotion Group. White paper for 5G radio technique architecture[R]. 2015.
[2]	ZHENNIAN S , XU X , XIAO M C , et al. The new architecture with time-spatial consistency for 5G networks[J]. China Communications, 2016, 13(1): 68-79.
[3]	PICHNA R , OJANPERA T , POSTI H , et al. Wireless internet: IMT-2000/wireless LAN interworking[J]. Journal of Communication and Networks, 2000, 2(1): 46-57.
[4]	SALKINTZIS A K , FOR C , PAZHYAN R . WLAN-GPRS integration for next-generation mobile data networks[J]. IEEE Wireless Communications, 2002, 9(5): 112-124.
[5]	ALMEIDA E , CAUALCAN A M , PAIVA R C D , et al. Enabling LTE/WiFi coexistence by LTE blank subframe allocation[C]// 2013 IEEE International Conference on Communications (ICC),June 9-13,2013,New York,USA. Piscataway:IEEE Press, 2013: 5083-5088.
[6]	AL-DULAIMI A,AL-RUBAYE S , NI Q , et al. 5G communications race: pursuit of more capacity triggers LTE in unlicensed band[J]. IEEE Vehicular Technology Magazine, 2015, 10(1): 43-51.
[7]	ZHANG H , CHU X , GUO W , et al. Coexistence of Wi-Fi and heterogeneous small cell networks sharing unlicensed spectrum[J]. IEEE Communications Magazine, 2015, 53(3): 158-164.
[8]	LIEN S Y , CHENG S M , CHEN K C , et al. Resource-optimal licensed-assisted access in heterogeneous cloud radio access networks with heterogeneous carrier communications[J]. IEEE Transactions on Vehicular Technology, 2016, 65(12): 9915-9930.
[9]	VOICU A M , SIMIC L , PETROVA M . Inter-technology coexistence in a spectrum commons: a case study of Wi-Fi and LTE in the 5-GHz unlicensed band[J]. IEEE Journal on Selected Areas in Communications, 2016, 34(11): 3062-3077.
[10]	WU D , NEIGI R . Effective capacity: a wireless link model for support of quality of service[J]. IEEE Transactions on Wireless Communications, 2003, 2(4): 630-643.
[11]	MUSAVIAN L , NI Q . Effective capacity maximization with statistical delay and effective energy efficiency requirements[J]. IEEE Transactions on Wireless Communications, 2015, 14(7): 3824-3835.
[12]	JIN F , ZHANG R , HANZO L . Resource allocation under delay-guarantee constraints for heterogeneous visible-light and RF femtocell[J]. IEEE Transactions on Wireless Communications, 2014, 14(2): 1020-1034.
[13]	KAFEZAKIS E , KONTOVASILIS K , STAVRAKAKIS I . A novel effective capacity-based framework for providing statistical QoS guarantees in IEEE 802.11 WLANs[J]. Computer Communications, 2012, 35(2): 249-262.
[14]	3GPP.Study on licensed-assisted access to unlicensed spectrum (Release 13): TR36.889 V13.0.0[S]. 2015.
[15]	Qualcomm Technologies,Inc. Progress on LAA and its relationship to LTE-U and MulteFire[EB]. 2016.
[16]	3GPP.New WID on NR-based access to unlicensed spectrum: RP-182878[S]. 2018.
[17]	3GPP.Study on NR-based access to unlicensed spectrum (Release 16): TR38.889 V16.0.0[S]. 2018.

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