公开(公告)号：US20170272137A1

公开(公告)日：2017-09-21

申请号：US15604387

申请日：2017-05-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Daiming Qu ,  Jun Li ,  Tao Jiang ,  Lei Chen

IPC: H04B7/0456 ,  H04B15/00 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/04 ,  H04B7/06 ,  H04B15/00 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/0668 ,  H04L27/264

Abstract: The present invention provides an FBMC transmit diversity transmission method and apparatus. The method includes: obtaining a to-be-transmitted data sequence, where the to-be-transmitted data sequence includes 2*M*N pieces of data; performing transmit diversity processing on the to-be-transmitted data sequence to obtain FBMC signals of a first antenna and a second antenna, where a precoding matrix is (I) or (II), a matrix that includes the FBMC signals of the first antenna and the second antenna is (III), a matrix that includes the to-be-transmitted data sequence is (IV), 0≦i≦M−1, 0≦j≦N−1, Y=WX, the 2*M*N pieces of data of the to-be-transmitted data sequence are denoted by x(0)(k,l) and x(1)(k,l), 0≦k≦M−1, 0≦l≦N−1, FBMC signals of the first antenna and the second antenna on an rth subcarrier and an sth symbol are denoted by y(0)(r,s) and y(1)(r,s), 0≦r≦2M−1, and 0≦s≦N−1; and transmitting the FBMC signals of the first antenna and the second antenna.

公开(公告)号：US10057089B2

公开(公告)日：2018-08-21

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: H04B1/10 ,  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：US10135663B2

公开(公告)日：2018-11-20

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: H04L5/12 ,  H04L23/02 ,  H04L27/26 ,  H04L27/34 ,  H04B1/12 ,  H04L27/36

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.

公开(公告)号：US10050684B2

公开(公告)日：2018-08-14

申请号：US15604387

申请日：2017-05-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Daiming Qu ,  Jun LI ,  Tao Jiang ,  Lei Chen

IPC: H04B7/02 ,  H04L1/02 ,  H04B7/0456 ,  H04B7/06 ,  H04B15/00

Abstract: The present invention provides an FBMC transmit diversity transmission method and apparatus. The method includes: obtaining a to-be-transmitted data sequence, where the to-be-transmitted data sequence includes 2*M*N pieces of data; performing transmit diversity processing on the to-be-transmitted data sequence to obtain FBMC signals of a first antenna and a second antenna, where a precoding matrix is (I) or (II), a matrix that includes the FBMC signals of the first antenna and the second antenna is (III), a matrix that includes the to-be-transmitted data sequence is (IV), 0≤i≤M−1, 0≤j≤N−1, Y=WX, the 2*M*N pieces of data of the to-be-transmitted data sequence are denoted by x(0)(k,l) and x(1)(k,l), 0≤k≤M−1, 0≤l≤N−1, FBMC signals of the first antenna and the second antenna on an rth subcarrier and an sth symbol are denoted by y(0)(r,s) and y(1)(r,s), 0≤r≤2M−1, and 0≤s≤N−1; and transmitting the FBMC signals of the first antenna and the second antenna.