Method for precisely estimating large frequency offset of DFT-s-OFDM (Direct Fourier Transformer Spread Orthogonal Frequency Division Multiplexing) system
An accurate estimation and SC-OFMA technology, which is applied in the field of large frequency offset estimation of discrete Fourier transform spread spectrum OFDM system, can solve the problem of automatic detection of resource blocks in the frequency domain, non-orthogonal subcarriers, Issues such as large uplink carrier leakage
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[0076] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0077] figure 1 A schematic diagram showing the physical layer link process of the 3GPP DFT-s-OFDM system transmitter, figure 2 It shows the SC-FDMA time domain diagram in the DFT-s-OFDM system. In the existing 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as 3GPP) agreement, there are 7 symbols in one time ...
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