Achieving low latency and energy consumption by 5G TDD mode optimization

Eeva Lähetkangas, Kari Pajukoski, Jaakko Vihriälä, Gilberto Berardinelli, Mads Lauridsen, Esa Tiirola, Preben Mogensen

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

52 Citationer (Scopus)


The target for a new 5G radio access technology is to support multi-Gbps and ms latency connectivity simultaneously at noticeably lower energy consumption and cost compared to the existing 4G technologies, such as LTE-Advanced. Extremely short air interface latency is required to achieve these requirements in a TDD-based local area network. In this paper, we discuss how the required short TDD latency can be achieved and further utilized in 5G physical air interface. First, we investigate the enablers and limits of TDD latency by analyzing the performance of OFDM in different channel environments and discussing on the consequent frame length limits. We then provide a description on how the achieved short TDD latency can further be utilized to enable remarkably low energy consumption. A numerical analysis comparing the battery life time of the suggested 5G TDD air interface and LTE is provided, showing remarkable gains for the 5G air interface concept.
TitelCommunications Workshops (ICC), 2014 IEEE International Conference on
Antal sider6
ForlagIEEE Press
ISBN (Trykt)9781479946402
StatusUdgivet - 2014
Begivenhed2014 IEEE International Conference on Communications - Sydney , Australien
Varighed: 10 jun. 201414 jun. 2014
Konferencens nummer: 31675


Konference2014 IEEE International Conference on Communications
NavnIEEE International Conference on Communications


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