Thiele, L.L.ThieleKurras, M.M.KurrasJaeckel, S.S.JaeckelFähse, S.S.FähseZirwas, W.W.Zirwas2022-03-132022-03-132015https://publica.fraunhofer.de/handle/publica/39416810.1109/ACSSC.2015.74213102-s2.0-84969835496Joint 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).enconference paper