Method and device for estimating frequency offset of reception signal

    公开(公告)号:US10263824B2

    公开(公告)日:2019-04-16

    申请号:US14948797

    申请日:2015-11-23

    Abstract: A method for estimating a frequency offset of a reception signal and, more particularly, a signal processing method which can be applied to a receiver modem in a wireless communication system, are provided. The method includes using an absolute value within a specific time area in an inverse discrete fourier transform (IDFT) output of a decorrelation signal between a reception signal and a reference signal, and enabling a highly approximate estimation of a frequency offset through only a single decorrelation test using a characteristic of a predetermined permutation of a signal.

    Method and device for combining reception signals in wireless communication system

    公开(公告)号:US10862631B2

    公开(公告)日:2020-12-08

    申请号:US16485072

    申请日:2017-03-13

    Abstract: According to an embodiment of the present invention, a method for combining reception signals of a reception device in a wireless communication system comprises the steps of: determining N (here, N is a natural number) number of symbols for performing symbol combining with respect to reception signals; symbol-combining the reception signals for L (here, L is a natural number) number of times according to the determination result; and energy-combining each group of the L number of reception signals for which the symbol combining has been performed. The present research has been performed by receiving support from “Giga KOREA project” of the Ministry of Science, ICT, and Future Planning.

    Method and apparatus for measuring interference amount

    公开(公告)号:US11012170B2

    公开(公告)日:2021-05-18

    申请号:US16979307

    申请日:2019-02-14

    Abstract: The present disclosure provides a method for measuring an amount of interference from an antenna, the method comprising the operations of: receiving at least on reference symbol; calculating a reference symbol NI, which is the antenna-related noise interference (NI) in the at least one reference symbol, on the basis of the at least one reference symbol; receiving at least one data symbol; calculating a data symbol NI, which is the antenna-related NI in the data symbol, on the basis of the at least one data symbol; calculating an NI ratio of the antenna which is the ratio of the data symbol NI relative to the reference symbol NI; and determining an antenna weight of the antenna on the basis of the NI ratio.

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