公开(公告)号：US20250125907A1

公开(公告)日：2025-04-17

申请号：US18985795

申请日：2024-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guido Montorsi ,  Sergio Benedetto ,  Wei Lin ,  Xun Yang ,  Yan Xin ,  Ming Gan ,  Mengyao Ma

IPC: H04L1/00

Abstract: A method includes performing low-density parity-check (LDPC) encoding on a first bit sequence based on a parity check matrix to obtain a first data packet and sending the first data packet. The parity check matrix includes a first parity check matrix and a second parity check matrix, both the first parity check matrix and the second parity check matrix conform to a first base matrix, and a code length of the first parity check matrix is different from a code length of the second parity check matrix.

公开(公告)号：US12218687B2

公开(公告)日：2025-02-04

申请号：US18523495

申请日：2023-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guido Montorsi ,  Sergio Benedetto ,  Wei Lin ,  Yan Xin

IPC: H03M13/11 ,  H03M13/00

Abstract: This application provides an LDPC code encoding method and a communication apparatus, to meet a requirement of increasing redundant bits through retransmission in an IR-HARQ mechanism, so as to decrease a channel coding rate, and improve decoding performance of an LDPC code. In the method, a check matrix of the LDPC code is used as a basic matrix, and the basic matrix is extended to obtain a mother matrix compatible with a plurality of code rates. During LDPC encoding, a transmit device reads, from the mother matrix, a check matrix corresponding to a required code rate, and performs LDPC encoding on an information bit sequence based on the read check matrix. LDPC encoding is performed on the information bit sequence by using check matrices of different sizes, to obtain different quantities of redundant bits.

公开(公告)号：US11881870B2

公开(公告)日：2024-01-23

申请号：US17856645

申请日：2022-07-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guido Montorsi ,  Sergio Benedetto ,  Wei Lin ,  Yan Xin

IPC: H03M13/00 ,  H03M13/11

CPC classification number: H03M13/118 ,  H03M13/616

Abstract: A low-density parity-check (LDPC) code encoding method and a communication apparatus are described that provide increased redundant bits through retransmission in an IR-HARQ mechanism, so as to decrease a channel coding rate, and improve decoding performance of an LDPC code. A check matrix of the LDPC code is used as a basic matrix, and the basic matrix is extended to obtain a mother matrix compatible with a plurality of code rates. During LDPC encoding, a transmit device reads, from the mother matrix, a check matrix corresponding to a required code rate, and performs LDPC encoding on an information bit sequence based on the read check matrix. LDPC encoding is performed on the information bit sequence by using check matrices of different sizes, to obtain different quantities of redundant bits.

公开(公告)号：US20230189015A1

公开(公告)日：2023-06-15

申请号：US18165050

申请日：2023-02-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mengyao Ma ,  Sheng Sun ,  Yan Xin

IPC: H04W16/26 ,  H04W16/28

CPC classification number: H04W16/26 ,  H04W16/28

Abstract: A method for performing a central coordination function includes that when a first central coordinator node cannot perform a central coordination function, a candidate central coordinator node may send, to another node, a first change request message used to request to change a node parameter, and receive a change request response message of the first change request message sent by the another node.

公开(公告)号：US11606164B2

公开(公告)日：2023-03-14

申请号：US17466895

申请日：2021-09-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yan Xin ,  Osama Aboul-Magd ,  Jung Hoon Suh

IPC: H04L1/00 ,  H04L27/26 ,  H04W84/12

Abstract: Methods and devices for transmitting data in an Orthogonal Frequency-Division Multiple Access (OFDMA) wireless local area network, comprising: selecting, for a first resource unit assigned to the target station, a first modulation type; selecting, for a second resource unit assigned to the target station, a second modulation type different from the first modulation type; and modulating coded data and mapping the modulated data onto subcarriers associated with the assigned resource units based on the respective modulation types selected for each of the assigned resource units.

公开(公告)号：US20230008045A1

公开(公告)日：2023-01-12

申请号：US17815383

申请日：2022-07-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiao Han ,  Chenlong Jia ,  Yan Xin

IPC: H04L5/14 ,  H04L27/26 ,  H04W72/04

Abstract: Embodiments of this application relate to the communications field, and in particular, to an information sending/receiving method and apparatus in the communications field. The information receiving method includes: determining an information receiving time based on any two of a time division duplex sector sweep acknowledgement frame count index, a count index, and a time division duplex sector sweep frame count index, duration of a time division duplex sector sweep frame, and duration of a time division duplex sector sweep acknowledgement frame; and receiving information at the determined information receiving time. According to the information receiving/sending method provided in the embodiments of this application, the information sending apparatus can send information at an accurate information sending time, the information receiving apparatus can receive the information at an accurate information receiving time, and system communication can be normally performed.

公开(公告)号：US11552726B2

公开(公告)日：2023-01-10

申请号：US17466895

申请日：2021-09-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yan Xin ,  Osama Aboul-Magd ,  Jung Hoon Suh

IPC: H04L1/00 ,  H04L27/26 ,  H04W84/12

Abstract: Methods and devices for transmitting data in an Orthogonal Frequency-Division Multiple Access (OFDMA) wireless local area network, comprising: selecting, for a first resource unit assigned to the target station, a first modulation type; selecting, for a second resource unit assigned to the target station, a second modulation type different from the first modulation type; and modulating coded data and mapping the modulated data onto subcarriers associated with the assigned resource units based on the respective modulation types selected for each of the assigned resource units.

公开(公告)号：US20220124810A1

公开(公告)日：2022-04-21

申请号：US17565100

申请日：2021-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Lei Huang ,  Yingpei Lin ,  Yan Xin

IPC: H04W74/08 ,  H04B7/08 ,  H04W16/14

Abstract: A method and system for LBT or CCA threshold setting for directional reception and transmission are provided. In an embodiment, a method in a wireless device for determining if a channel is clear in an unlicensed band channel in a wireless network includes detecting, with the wireless device, an energy along a first beamforming direction. The method also includes determining, with the wireless device, an energy detection threshold. The method also includes determining, with the wireless device, whether the unlicensed band channel is clear in at least the first receiving direction according to the energy and the energy detection threshold.

公开(公告)号：US11251841B2

公开(公告)日：2022-02-15

申请号：US16856652

申请日：2020-04-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jung Hoon Suh ,  Osama Aboul-Magd ,  Yan Xin

IPC: H04B7/06 ,  H04B7/0452 ,  H04B7/08 ,  H04W84/12 ,  H04L5/00 ,  H04W88/08 ,  H04L27/26

Abstract: Disclosed herein are devices, systems and methods between a between a plurality of collaborating Access Points (APs) and a receiving station (STA) operating in a wireless local area network (WLAN). The method include the steps of: transmitting, by each AP in the plurality of collaborating APs, a data frame to the receiving STA, each data frame has a preamble portion, the preamble portion including a signal (SIG) field, and the SIG field has a subfield including information representative of a total number of spatial streams transmitted by the plurality of collaborating APs.

公开(公告)号：US11102049B2

公开(公告)日：2021-08-24

申请号：US16725128

申请日：2019-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guido Montorsi ,  Sergio Benedetto ,  Yan Xin ,  Min Yan ,  Wei Lin

IPC: H04L27/34

Abstract: Methods and apparatus for facilitating wireless communication using digital Quadrature Amplitude Modulation are disclosed. A wireless communication device utilizes a signal constellation for quadrature modulating a signal for transmission or quadrature demodulating a received signal. The signal constellation includes multiple constellation symbols and associated bit sequences, which can be translated there between. Specific signal constellations are disclosed.