公开(公告)号：US11469936B2

公开(公告)日：2022-10-11

申请号：US17323580

申请日：2021-05-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanzhou Hu ,  Fan Wang

IPC: H04L27/26

Abstract: This application provides example data transmission methods and apparatuses, so that a PAPR of time-domain sending data can be reduced. One example method includes a transmit end performing modulation data processing on first modulation data whose length is M1, to obtain second modulation data whose length is M2, where M1

公开(公告)号：US11025393B2

公开(公告)日：2021-06-01

申请号：US16579637

申请日：2019-09-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengying Ding ,  Yuanzhou Hu ,  Pengpeng Dong ,  Zongjie Wang

IPC: H04L5/00 ,  H04L27/00 ,  H04L27/233

Abstract: This application discloses a wireless communication method, a wireless communications apparatus, and a wireless communications system. An example wireless communication method includes: receiving, by a terminal, indication information of uplink data transmission from a base station; determining, by the terminal, a base sequence configuration of a reference signal sequence corresponding to the modulation scheme of the uplink data transmission, and generating a dedicated demodulation reference signal based on the determined base sequence configuration of the reference signal sequence, where the modulation scheme of the uplink data transmission is one of a plurality of modulation schemes supported by the terminal, the plurality of modulation schemes include at least π/2 binary phase shift keying (BPSK), and a base sequence configuration of a reference signal sequence corresponding to the π/2 BPSK is different from a base sequence configuration of a reference signal sequence corresponding to another modulation scheme in the plurality of modulation schemes.

公开(公告)号：US10924315B2

公开(公告)日：2021-02-16

申请号：US16371801

申请日：2019-04-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Pengpeng Dong ,  Mengying Ding ,  Yuanzhou Hu ,  Zongjie Wang

IPC: H04L27/26 ,  H04L25/02

Abstract: Embodiments of the present disclosure relate to a data transmission method and a communications device. The method includes: performing an interpolation operation on a first signal sequence to obtain a second signal sequence, where a length of the second signal sequence is greater than a length of the first signal sequence; mapping the second signal sequence onto a subcarrier to obtain a second signal sequence that is on the subcarrier; performing an inverse fast Fourier transform (IFFT) on the second signal sequence that is on the subcarrier, to obtain a time-domain signal, and transmitting the time-domain signal. According to the embodiments of the present disclosure, a delay deviation can be better resisted.

公开(公告)号：US20190222456A1

公开(公告)日：2019-07-18

申请号：US16368618

申请日：2019-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xin ZENG ,  Zongjie Wang ,  Yuanzhou Hu

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

CPC classification number: H04L27/2636 ,  H04L27/2614 ,  H04L27/3483 ,  H04L27/361 ,  H04L29/08

Abstract: This application relates to the field of wireless communications technologies, and in particular, to a data processing method, apparatus, and system. This application provides a data processing method. A data sending device modulates a to-be-transmitted bit sequence, splits a real part and an imaginary part of a complex-valued symbol that is obtained through the modulation into two symbols to form a symbol sequence, performs phase rotation of symbols in the symbol sequence, and performs sending by using a single carrier frequency division multiple access (SC-FDMA) symbol. This application is intended to reduce a peak-to-average power ratio (PAPR) of a transmit signal of an orthogonal frequency division multiplexing (OFDM) system by splitting a real part and an imaginary part of a to-be-transmitted signal, and improve link quality of an entire transmission system.