公开(公告)号：US20170331649A1

公开(公告)日：2017-11-16

申请号：US15663177

申请日：2017-07-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Daiming QU ,  Fang WANG ,  Tao JIANG ,  Lei CHEN

IPC: H04L25/03

CPC classification number: H04L25/03159 ,  H04L25/03

Abstract: Embodiments of the present invention provide a data processing method and apparatus. The method includes: selecting at least two groups of data from a to-be-processed data stream according to a preset first interval in a staggered manner; performing Fourier transform on each of the at least two groups of data to obtain at least two groups of first data; performing frequency domain filtering on the at least two groups of first data by using a prototype filter, to obtain at least two groups of second data; performing inverse Fourier transform on each of the at least two groups of second data to obtain at least two groups of third data; and adding the at least two groups of third data according to a preset second interval in a staggered manner. In the process, data obtained after transform reserves a feature of a single carrier, and has a low peak-to-average ratio.

公开(公告)号：US20170171010A1

公开(公告)日：2017-06-15

申请号：US15431472

申请日：2017-02-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Daiming QU ,  Tao JIANG ,  Jun LI ,  Lei CHEN

IPC: H04L27/26 ,  H04B1/12 ,  H04L27/36 ,  H04L27/34

CPC classification number: H04L27/2698 ,  H04B1/123 ,  H04L27/2627 ,  H04L27/264 ,  H04L27/34 ,  H04L27/362 ,  H04L27/365 ,  H04L27/366

Abstract: An FBMC signal transmitting method and receiving method, a transmitter, and a receiver are provided. The transmitting method includes: generating offset quadrature amplitude modulation OQAM symbols included on at least two subbands; mapping an OQAM symbol on each subband onto a respective subcarrier to obtain a frequency-domain signal, where a first frequency interval exists between adjacent subcarriers in a same subband, a second frequency interval exists between adjacent subcarriers that belong to two adjacent subbands, the second frequency interval is a sum of the first frequency interval and a guard band interval, and the guard band interval is a fractional multiple of the first frequency interval; generating an FBMC signal out of the frequency-domain signal; and transmitting the FBMC signal to a receiver.