公开(公告)号：US11889486B2

公开(公告)日：2024-01-30

申请号：US17147002

申请日：2021-01-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Quanzhong Gao ,  Heng Xu ,  Mingtao Xu ,  Kunchao Bao

IPC: H04W72/0453 ,  H04L25/02 ,  H04W88/08

CPC classification number: H04W72/0453 ,  H04L25/0204 ,  H04W88/08

Abstract: Embodiments of this application relate to the communications field, and provide a data transmission control method. The method includes: obtaining, by the first communications apparatus, radio frequency signals; processing, by the first communications apparatus, at least two parts of signals in the radio frequency signals in at least two functional split manners, to generate at least two parts of transmission signals, where each part of signals in the radio frequency signals is processed in one functional split manner, and different parts of signals in the radio frequency signals are processed in different functional split manners; and sending, by the first communications apparatus, the at least two parts of transmission signals to the second communications apparatus.

公开(公告)号：US11910443B2

公开(公告)日：2024-02-20

申请号：US17349160

申请日：2021-06-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Heng Xu ,  Jian Li ,  Mingtao Xu

IPC: H04W74/08 ,  H04W72/04 ,  H04W16/28 ,  H04W72/044 ,  H04B7/0413 ,  H04W84/04

CPC classification number: H04W74/0833 ,  H04W16/28 ,  H04W72/044 ,  H04B7/0413 ,  H04W84/042

Abstract: Embodiments of this application relate to a PRACH detection method, and the method includes: sequentially detecting frequency domain data of each beam in at least two groups of beams; obtaining frequency domain data of a frequency corresponding to a PRACH from frequency domain data of a currently detected beam; determining a time domain correlation peak of the PRACH based on the frequency domain data of the frequency corresponding to the PRACH; determining a first peak value based on the time domain correlation peak of the PRACH; and when the first peak value is greater than or equal to a first threshold, sending a random access response message to user equipment.

公开(公告)号：US20230396296A1

公开(公告)日：2023-12-07

申请号：US18452583

申请日：2023-08-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yulin Huang ,  Mingtao Xu ,  Heng Xu

IPC: H04B7/0456 ,  H04B7/01

CPC classification number: H04B7/0486 ,  H04B7/01

Abstract: This application provides a phase correction method and a communication apparatus. In the phase correction method, a network device sends a combined signal to a terminal, where the combined signal is obtained by passing a first signal through N channels and combining output signals of the N channels. The terminal determines a precoding matrix based on the combined signal and feeds back the precoding matrix to the network device. The network device estimates a phase error between a plurality of channels of the network device based on the precoding matrix, and corrects phases of the N channels based on the obtained phase error. In the foregoing technical solution, soft correction of phases of N channels of the network device may be implemented by using an air interface feedback of a terminal, so that it can be ensured that the phases of the N channels are consistent.