SIGNAL GENERATION METHOD AND APPARATUS

    公开(公告)号:US20250106088A1

    公开(公告)日:2025-03-27

    申请号:US18902381

    申请日:2024-09-30

    Abstract: This application provides a signal generation method and an apparatus. In the method, a first communication apparatus generates a first signal, and sends the first signal to a second communication apparatus, who receives the first signal, and then demodulates the first signal. A symbol included in the first signal is carried on K+2(M−1) subcarriers. Middle K subcarriers are valid subcarriers, start M−1 subcarriers and last M−1 subcarriers are redundant subcarriers, and a subcarrier spacing between adjacent subcarriers is related to a feature of a time domain pulse used to shape the subcarrier, wherein a width of each of some or all side lobes of a spectrum of the time domain pulse is equal to 1/M of a main lobe width of the time domain pulse, the subcarrier spacing is 1/M of the main lobe width. K is a positive integer, and M is a positive integer greater than 1.

    Channel State Information Processing Method and Communication Apparatus

    公开(公告)号:US20230318675A1

    公开(公告)日:2023-10-05

    申请号:US18174380

    申请日:2023-02-24

    CPC classification number: H04B7/0626 H04B7/0456 H04B7/0413

    Abstract: A channel state information processing method and a communication apparatus. The method includes obtaining CSI information of a channel, where the CSI information includes an N-dimensional antenna domain coefficient, and N is an integer greater than 1; performing a beam domain transformation on the CSI information based on an array response feature, to obtain first CSI transformation information that includes an N-dimensional beam domain coefficient; performing a cluster sparse domain transformation on the first CSI transformation information based on a cluster sparse transformation basis, to obtain second CSI transformation information that includes an N-dimensional cluster sparse domain coefficient and the cluster sparse transformation basis is determined based on a channel prior statistical feature of the channel; and sending quantized values of L cluster sparse domain coefficients in the N-dimensional cluster sparse domain coefficient to a second communication apparatus, where L is a positive integer less tha

    Method to generate ordered sequence for polar codes

    公开(公告)号:US10985871B2

    公开(公告)日:2021-04-20

    申请号:US15875766

    申请日:2018-01-19

    Abstract: A number K of N sub-channels that are defined by a code and that have associated reliabilities for input bits at N input bit positions, are to be selected to carry bits that are to be encoded. A localization area that includes multiple sub-channels and is located below fewer than K of the N sub-channels in a partial order of the N sub-channels is determined based on one or more coding parameters. The fewer than K sub-channels of the N sub-channels above the localization area in the partial order are selected, and a number of sub-channels from those in the localization area are also selected. The selected fewer than K sub-channels and the number of sub-channels selected from those in the localization area together include K sub-channels to carry the bits that are to be encoded.

    Decoding method and apparatus
    15.
    发明授权

    公开(公告)号:US10211951B2

    公开(公告)日:2019-02-19

    申请号:US15394404

    申请日:2016-12-29

    Abstract: Embodiments of the present invention provide a decoding method and apparatus. The method includes: receiving K user signals by using N subcarriers, where one user signal is carried on at least two subcarriers of the N subcarriers, one subcarrier carries at least two user signals of the K user signals, and 2≤N

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