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Survey on 5G Second Phase RAN Architectures and Functional Splits

2022-09-05Preprint Open access
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dc.contributor.authorBahram, Khan
dc.contributor.authorNidhi, Nidhi
dc.contributor.authorOdetAlla, Hatem
dc.contributor.authorFlizikowski, Adam
dc.contributor.authorMihovska, Albena Dimitrova
dc.contributor.authorWagen, Jean-Frédéric
dc.contributor.authorVelez, Fernando
dc.date.accessioned2022-10-06T08:30:12Z
dc.date.available2022-10-06T08:30:12Z
dc.date.issued2022-09-05
dc.description.abstractThe Radio Access Network (RAN) architecture evolves with different generations of mobile communication technologies and forms an indispensable component of the mobile network architecture. The main component of the RAN infrastructure is the base station, which includes a Radio Frequency unit and a baseband unit. The RAN is a collection of base stations connected to the core network to provide coverage through one or more radio access technologies. The advancement towards cloud native networks has led to centralizing the baseband processing of radio signals. There is a trade-off between the advantages of RAN centralization (energy efficiency, power cost reduction, and the cost of the fronthaul) and the complexity of carrying traffic between the data processing unit and distributed antennas. 5G networks hold high potential for adopting the centralized architecture to reduce maintenance costs while reducing deployment costs and improving resilience, reliability, and coordination. Incorporating the concept of virtualization and centralized RAN architecture enables to meet the overall requirements for both the customer and Mobile Network Operator. Functional splitting is one of the key enablers for 5G networks. It supports Centralized RAN, virtualized Radio Access Network, and the recent Open Radio Access Networks. This survey provides a comprehensive tutorial on the paradigms of the RAN architecture evolution, its key features, and implementation challenges. It provides a thorough review of the 3rd Generation Partnership Project functional splitting complemented by associated challenges and potential solutions. The survey also presents an overview of the fronthaul and its requirements and possible solutions for implementation, algorithms, and required tools whilst providing a vision of the evaluation beyond 5G second phase.pt_PT
dc.description.sponsorshipThis work was supported by FCT/MCTES through national funds and when applicable co-funded EU funds under the project UIDB/50008/2020, ORCIP (22141-01/SAICT/2016), COST CA 20120 INTERACT, SNF Scientific Exchange-AISpectrum (project 205842) and TeamUp5G. TeamUp5G has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie ETN TeamUp5G, grant agreement No. 813391.
dc.description.versioninfo:eu-repo/semantics/submittedVersionpt_PT
dc.identifier.citationBahram Khan, Nidhi, Hatem Odetalla, Adam Flizikowski, Albena Mihovska, Jean-Frédéric Wagen and Fernando J. Velez, “Survey on 5G Second Phase RAN Architectures and Functional Splits,” submitted for possible publication to IEEE Communications Surveys and Tutorials, Sep. 2022.pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/12363
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIEEEpt_PT
dc.relationNew RAN TEchniques for 5G UltrA-dense Mobile networks
dc.relationInstituto de Telecomunicações
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/pt_PT
dc.subjecteCPRIpt_PT
dc.subjectFunctional Splittingpt_PT
dc.subjectOpen RANpt_PT
dc.subjectCentralized RANpt_PT
dc.subjectVirtualized RANpt_PT
dc.subjectBBUpt_PT
dc.subjectCUpt_PT
dc.subjectDUpt_PT
dc.subject5G Second Phasept_PT
dc.titleSurvey on 5G Second Phase RAN Architectures and Functional Splitspt_PT
dc.typepreprint
dspace.entity.typePublication
oaire.awardTitleNew RAN TEchniques for 5G UltrA-dense Mobile networks
oaire.awardTitleInstituto de Telecomunicações
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/813391/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50008%2F2020/PT
oaire.citation.conferencePlaceUSApt_PT
oaire.citation.titleIEEE Communications Surveys and Tutorialspt_PT
oaire.fundingStreamH2020
oaire.fundingStream6817 - DCRRNI ID
person.familyNameOdetAlla
person.familyNameFlizikowski
person.familyNameMihovska
person.familyNameWagen
person.familyNameVelez
person.givenNameNidhi
person.givenNameHatem
person.givenNameAdam
person.givenNameAlbena Dimitrova
person.givenNameJean-Frédéric
person.givenNameFernando J.
person.identifier1013778
person.identifier.ciencia-id1510-E247-C9DB
person.identifier.orcid0000-0001-5861-9752
person.identifier.orcid0000-0003-0294-3275
person.identifier.orcid0000-0002-7173-6360
person.identifier.orcid0000-0002-4919-3101
person.identifier.orcid0000-0001-8544-5970
person.identifier.orcid0000-0001-9680-123X
person.identifier.scopus-author-id25960547500
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typepreprintpt_PT
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