Zero insertion for isi free ofdm reception

Gilberto Berardinelli (Opfinder), Bernard Raaf (Opfinder), Fernando Menezes Leitão Tavares (Opfinder), Jürgen Michel (Opfinder)

Publikation: Patent

Abstrakt

An apparatus (UEA) may generate a zero-tail signal to be transmitted in an LTE/LTE-A cell, by introducing time domain samples with zero power or very low power in specific positions of a time symbol tail. The apparatus (UEA) may transmit the generated zero-tail signal to a base station (eNB), such that a first user terminal (UEA) is located in the cell farther away (e.g. on a cell edge) from the base station (eNB) than a second user terminal (UEB). Thus coexistence of signals sent by user terminals (UEA, UEB) located at different distances from the base station (eNB) within a same receiver window is enabled without inter-symbol interference. The generated zero-tail signal may also be transmitted from the first user terminal (UEA) or from the base station (eNB) in an outdoor system that is detectable by a neighboring indoor system.
OriginalsprogEngelsk
IPCH04L25/03821
PatentnummerUS9544171B2
LandDanmark
StatusUdgivet - 2014

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  • Citationsformater

    Berardinelli, G., Raaf, B., Tavares, F. M. L., & Michel, J. (2014). IPC nr. H04L25/03821. Zero insertion for isi free ofdm reception. (Patentnummer US9544171B2).