公开(公告)号：US20240356793A1

公开(公告)日：2024-10-24

申请号：US18754905

申请日：2024-06-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meng Shi ,  Peng Zou ,  Jiayin Zhang

IPC: H04L27/34 ,  H04L1/00

CPC classification number: H04L27/34 ,  H04L1/0003 ,  H04L1/0061 ,  H04L1/0071

Abstract: Embodiments of this application disclose a modulation method, a demodulation method, and a related apparatus. A first communication apparatus can ensure, by performing technical solutions of this application, a shaping gain brought by using probabilistic constellation shaping modulation in a high-frequency scenario. The method in embodiments of this application includes: The first communication apparatus determines probability distributions of constellation points in a target probabilistic shaping constellation diagram based on a Maxwell-Boltzmann distribution parameter and a phase noise parameter. The first communication apparatus modulates a first original bit stream and a second original bit stream based on the probability distributions of the constellation points in the target probabilistic shaping constellation diagram, to obtain a first quadrature amplitude modulation QAM symbol stream.

公开(公告)号：US20240414041A1

公开(公告)日：2024-12-12

申请号：US18399166

申请日：2023-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meng Shi ,  Minghui Xu ,  Jiayin Zhang

IPC: H04L27/26

Abstract: A signal transmission method and a communication apparatus are described. The method may include: mapping a reference signal to a target location in a discrete Fourier transform-spread-orthogonal frequency division multiplexing DFT-s-OFDM symbol, where the target location is determined based on a pattern parameter of the reference signal and a location parameter of a data block, and the location parameter of the data block is used to determine a location of the data block in the DFT-s-OFDM symbol; and sending the DFT-s-OFDM symbol. Not only the pattern parameter of the reference signal is considered, but also the location parameter of the data block is considered, so that overall location distribution of the reference signal can be more proper, phase noise estimation performance and channel estimation performance are improved, and demodulation performance is improved.

公开(公告)号：US20240372772A1

公开(公告)日：2024-11-07

申请号：US18760790

申请日：2024-07-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meng Shi ,  Rongkuan Liu ,  Jiayin Zhang ,  Peng Zou

IPC: H04L27/36 ,  H04L25/02 ,  H04L27/38

Abstract: This application provides a communication method and apparatus in a high-frequency scenario. The method includes: A transmit-end device may modulate S bitstreams according to a mapping rule corresponding to a first modulation scheme for a higher-order modulation signal to be received by a receive-end device, to generate M lower-order modulation signals, where S is equal to 1 or M, and M is an integer greater than or equal to 2; and then send the M lower-order modulation signals through a line of sight LOS channel, so that a modulation order of a signal transmitted by a transmit end can be reduced.