SAMPLING CLOCK PHASE MISMATCH ERROR ESTIMATION METHOD AND APPARATUS, AND STORAGE MEDIUM

    公开(公告)号:US20240162911A1

    公开(公告)日:2024-05-16

    申请号:US17772970

    申请日:2020-10-29

    Inventor: Gang WU

    CPC classification number: H03M1/0607

    Abstract: Provided are a sampling clock phase mismatch error estimation method and apparatus, and a storage medium. This sampling clock phase mismatch error estimation method includes: a proportional relation between an estimation operator of a modular square subtraction method corresponding to each frequency interval of multiple frequency intervals and a sampling clock phase mismatch error of a time-interleaved analog to digital converter (TIADC) is acquired; a slope and an offset value of a fitting proportion line segment are counted; and a slope of a proportion line segment corresponding to a real-time estimation frequency is converted, and an offset value corresponding to the real-time estimation frequency is estimated through an interpolation according to a counted slope and a counted offset value, and the actual value of the sampling clock phase mismatch error is estimated according to a converted slope and an offset value estimated through the interpolation.

    INTERFERENCE REJECTION COMBINING METHOD, DEVICE AND STORAGE MEDIUM

    公开(公告)号:US20180034532A1

    公开(公告)日:2018-02-01

    申请号:US15551075

    申请日:2015-12-29

    Inventor: Gang WU

    Abstract: Disclosed in an embodiment of the disclosure is an interference rejection combining (IRC) method supporting transmit diversity, in which an N*N interference and noise covariance matrix corresponding to one subcarrier is generated from signals, in a transmit diversity mode, received at cell reference signal (CRS) resource positions via N receiving antennas, where N is greater than or equal to 3; Cholescy decomposition and upper triangular matrix inversion is performed on the N*N interference and noise covariance matrix to obtain an N*N block matrix; the N*N block matrix is expanded to a 2N*2N noise whitening matrix; and the received signals and channel estimation values are whitened according to the noise whitening matrix, and the whitened received signals and channel estimation values used to obtain a minimum mean square error-IRC (MMSE-IRC) processing result. Also disclosed are an IRC device supporting the transmit diversity, and a computer storage medium.

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