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Interference-floor shaping for liquid coverage zones in coordinated 5G networks

: Thiele, L.; Kurras, M.; Jaeckel, S.; Fähse, S.; Zirwas, W.


Matthews, M.B. ; IEEE Signal Processing Society:
49th Asilomar Conference on Signals, Systems and Computers, ACSSC 2015 : November 8-11, 2015, Pacific Grove, California
Piscataway, NJ: IEEE, 2015
ISBN: 978-1-4673-8576-3 (electronic)
ISBN: 978-1-4673-8574-9 (CD-ROM)
ISBN: 978-1-4673-8575-6 (USB)
ISBN: 978-1-4673-8577-0 (Print on Demand)
Asilomar Conference on Signals, Systems & Computers (ACSSC) <49, 2015, Pacific Grove/Calif.>
Fraunhofer HHI ()

Joint transmission coordinated multi-point (CoMP) is a combination of constructive and destructive superposition of several to potentially many signal components, with the goal to maximize the desired receive-signal and at the same time to minimize mutual interference. Especially the destructive superposition requires accurate alignment of phases and amplitudes. Therefore, a 5G clean slate approach needs to incorporate the following enablers to overcome the challenging limitation for JT CoMP: accurate channel estimation of all relevant channel components, channel prediction for time-aligned precoder design, proper setup of cooperation areas corresponding to user grouping and to limit feedback overhead especially in FDD as well as treatment of out-of-cluster interference (interference floor shaping).