公开(公告)号：US20210126362A1

公开(公告)日：2021-04-29

申请号：US17141776

申请日：2021-01-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tao JIANG ,  Jing LI ,  Zhiwei ZHANG

IPC: H01Q3/26 ,  H04B17/11 ,  H04B17/21 ,  H01Q3/36

Abstract: One example method includes transmitting a test signal through the transmit channel n, where the test signal is radiated by a service antenna element n corresponding to the transmit channel n and is received by a calibration antenna element in the phased array antenna. N coupling signals received by N calibration antenna elements coupled to the service antenna element n can then be obtained. Delay weighting can then be performed on the N coupling signals based on relative positions of the service antenna element n and each of the N calibration antenna elements to obtain N calibration signals. The N calibration signals can then be combined into the calibration signal corresponding to the transmit channel n. Calibration signals corresponding to all transmit channels in the phased array antenna can then be obtained. At least one of amplitudes or phases of the transmit channels can then be compensated for.

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.

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：US20250062829A1

公开(公告)日：2025-02-20

申请号：US18937770

申请日：2024-11-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huan LE ,  Xiang CHENG ,  Tao JIANG ,  Lie LUO

IPC: H04B10/079

Abstract: An example optical-electrical apparatus includes an optical-to-electrical conversion circuit, an electrical signal processing circuit, an electrical signal interface circuit, and a status detection circuit. The optical-to-electrical conversion circuit is configured to convert an optical signal into an electrical signal. The electrical signal processing circuit is configured to output a first parameter of the optical signal based on the electrical signal, where the first parameter includes an optical polarization parameter. The status detection circuit is configured to obtain status information of the optical signal based on the first parameter, where the status information of the optical signal is output via the electrical signal interface circuit.

公开(公告)号：US20170099164A1

公开(公告)日：2017-04-06

申请号：US15379907

申请日：2016-12-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tao JIANG ,  Dejin KONG ,  Wenjia CUI ,  Guangmei REN

IPC: H04L25/03 ,  H04L5/00

CPC classification number: H04L25/03019 ,  H04L5/0048 ,  H04L5/005 ,  H04L25/022 ,  H04L25/0228 ,  H04L25/03 ,  H04L27/264 ,  H04L27/2698

Abstract: A transmit end determines M first time-frequency resource locations and S second time-frequency resource locations, and determines, in the S second time-frequency resource locations, S/2 second time-frequency resource locations as a first set, and S/2 second time-frequency resource locations excluding the second time-frequency resource locations in the first set as a second set; determines a communication data symbol sent at the second time-frequency resource locations in the first set; obtains, a compensation data symbol sent at the second time-frequency resource locations in the second set, where interference of the communication data symbol to the pilot data symbol cancels out interference of the compensation data symbol to the pilot data symbol; and separately sends the pilot data symbol at the M first time-frequency resource locations, and sends the communication data symbol and the compensation data symbol at the S second time-frequency resource locations.

公开(公告)号：US20220021095A1

公开(公告)日：2022-01-20

申请号：US17492124

申请日：2021-10-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tao JIANG ,  Jiyong GUO

IPC: H01P1/208 ,  H01P7/06 ,  H01P7/10 ,  H04B1/40

Abstract: Example dielectric filters, transceiver devices, and base stations are described. One example dielectric filter includes a dielectric block whose surface is covered with a metal layer, where the dielectric block includes at least two resonant cavities. The dielectric block is provided with a via hole, the via hole is located between two adjacent resonant cavities, and an inner wall of the via hole is covered with a metal layer. A first partition ring is disposed on the surface of the dielectric block and is surrounding at least one opening of the via hole, and the dielectric block is exposed in an area enclosed by an inner edge of the first partition ring and an outer edge of the first partition ring.