Split Options for 5G Radio Access Networks
Conference: Mobilkommunikation – Technologien und Anwendungen - 22. ITG-Fachtagung
05/09/2017 - 05/10/2017 at Osnabrück, Deutschland
Proceedings: ITG-Fb. 271: Mobilkommunikation
Pages: 6Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
Arnold, Paul; Bayer, Nico; Belschner, Jakob (Technology Innovation, Deutsche Telekom AG, Darmstadt, Germany)
5G networks are supposed to offer a high flexibility in a several ways. In this regard, a twofold split of the processing in the radio access network is under discussion: A control plane / user plane split to support the software defined networking principle and a radio protocol stack layer based split to allow a flexible placement of processing functions between a central and one or more distributed units. In this work, the motivation and state of the art for both splits are described including a discussion of the advantages and disadvantages. It is followed by a description of a network architecture allowing a flexible implementation of these splits. This especially focuses on the required interfaces between control and user plane.