Filterbank-based multicarrier transmitter for transmitting a multicarrier signal

Abstract

The invention relates to a filterbank-based multicarrier transmitter (100) for transmitting a multicarrier signal, the multicarrier signal comprising a synchronization part and a payload part, the synchronization part comprising K1 frequency sub-channels, the payload part comprising K2 frequency sub-channels, the K1 frequency sub-channels of the synchronization part being arranged to form M subsequent multicarrier symbols, the filterbank-based multicarrier transmitter (100) comprising a processor (101) being configured to assign subsequent pilot values of a pilot sequence to every Pth frequency sub-channel of the K1 frequency sub-channels of the synchronization part to obtain a pilot symbol of the multicarrier signal, and to assign subsequent payload values of a payload sequence to subsequent frequency sub-channels of the K2 frequency sub-channels of the payload part to obtain a payload symbol of the multicarrier signal, wherein P is greaterthan 1, and wherein the processor (101) is configured to assign subsequent groups of subsequent pilot values to every Qth symbol of the M multicarrier symbols, wherein Q is equal to or greater than 1.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a multi-carrier transmitter based on a filter bank. Background technique [0002] There is increasing interest in scenarios of dynamic or shared spectrum access and inter-operator sharing for filter bank based multi-carrier (FBMC) communication systems. In these scenarios, different communication systems may coexist in the same frequency band, and exclusive and continuous use of the frequency band may not be possible for one communication system. Therefore, the receiver has to deal with interference from different users within its assigned frequency band, and has to deal with fragmented spectrum. [0003] Synchronization schemes for filter bank-based multi-carrier communication systems are usually performed in the time domain, where multi-carrier signals are assumed to cover continuous bandwidth and free of interfering signals. [0004] However, time domain based synchron...

AI Technical Summary

Problems solved by technology

The proposed synchronization scheme is based on long pilot symbol permutations with enhanced signal power and there is a limited offset estimation range

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