Co-funded by: Federal Ministry of Education and Research (BMBF)

Duration: 04/2007 - 09/2010

System-Level Trial of cooperative antenna techniques, SYLT

The project SYLT targets significant improvements of the capacity of the broadband mobile access network. This is achieved using cooperative multi-cell MIMO signal processing for adjacent base stations. Such a distributed cooperation can be enabled by a fixed or wireless backbone network. The interference limitation of the cellular access network can be removed in this way: With infinite backbone bandwidth and zero latency, the much higher capacity of isolated cells could be realized. A general research focus is the efficient use of limited cooperation, and the gains possible in a mobile environment.

In cooperation with Deutsche Telekom AG, a field trial is conducted in downtown Berlin. Three base stations are deployed, covering the area around Ernst-Reuter-Platz (see graph). Transmission technology is based on the 3G long-term evolution (LTE), being the forthcoming mobile radio standard. The current draft standard is enhanced with multi-cell MIMO. As an application, mobile "quadruple-play" services are demonstrated in real time.

The project SYLT is part of the collaborative project EASY-C sponsored by the German Ministry of Research and Education (BMBF).