LTE Evolution & Beyond LTE.

As the mobile Internet is becoming reality, the demand for a ubiquitous, high-bandwidth Internet access anytime, anywhere is continuously increasing. As spectrum is limited, this means that future mobile communications systems have to provide significantly higher spectral efficiencies than today's systems. Further requirements towards next generation networks, as outlined for example by the NGMN alliance, are fairness, low latency and appropriate total cost of ownership.

3GPP will finalize standardization of the first release of LTE in 2008, and prototypes and first commercial products are becoming increasingly available. LTE is a good basis, on which further innovations can be based. Within 3GPP, the discussion on further evolution of LTE has started within the “LTE-Advanced” context. Techniques which could play a role are multi-cell transmission and detection as well as relaying. Theoretical analysis and system performance evaluation are required which show the potential and limits of such techniques, as well as system concept development which ensures that the complexity and costs of such techniques are kept reasonable. One example of activities in this research area is the German research project EASY-C, where both inter-cell and intra-cell signal processing techniques such as network MIMO and relaying are implemented and evaluated in field-test beds in downtown Dresden and Berlin. Further projects addressing these topics are e.g. WINNER+ and the MVCE.

The “International Workshop on LTE Evolution” complements the high-quality technical papers and exhibition at ICC 2009, and will include keynote speeches and a panel discussion.


The International Workshop on LTE Evolution took place on June 18th 2009 alongside IEEE ICC in Dresden, with over 70 participants. 16 papers were presented, less than 50% of the submitted papers which were mostly of excellent quality. The lively discussion at the workshop were centred around theoretical analysis, performance prediction, technical feasibility analysis, business models and very concrete technical concepts for the further evolution of LTE beyond Release 8. Focus topics were cooperative multipoint (COMP) for uplink and downlink, and relaying.
The workshop programme also included life field demos of uplink and downlink COMP within the LTE-Advanced testbed in Dresden.
The workshop papers are available on IEEE explore.