公开(公告)号：US20190273643A1

公开(公告)日：2019-09-05

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：US20190229962A1

公开(公告)日：2019-07-25

申请号：US16370963

申请日：2019-03-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jinlin PENG ,  Zongjie WANG ,  Mengying DING

IPC: H04L27/26 ,  H04L5/00

Abstract: Embodiments of the present invention disclose a reference signal transmission method. A transmitting apparatus multiplies M first symbol sequences by M coefficients respectively to obtain M second symbol sequences, where M is a positive integer greater than 1, the symbol sequence includes L symbols, L is a positive integer greater than 1, and the M coefficients each have a magnitude of 1. The transmitting apparatus maps the M second symbol sequences onto a first time-frequency resource to obtain a frequency domain signal. The transmitting apparatus performs an IFFT operation on the frequency domain signal to obtain a time domain signal. And the transmitting apparatus sends the time domain signal.