公开(公告)号：US20160013811A1

公开(公告)日：2016-01-14

申请号：US14864338

申请日：2015-09-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoshu SI ,  Dao PAN ,  Fanglin SUN ,  Xiaofeng ZHANG ,  Tao OUYANG

IPC: H03M13/17 ,  H03M13/35

CPC classification number: H03M13/17 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/23 ,  H03M13/2957 ,  H03M13/35 ,  H03M13/353 ,  H03M13/611 ,  H03M13/618 ,  H03M13/6516 ,  H04L1/0041 ,  H04L1/0046 ,  H04L1/0075

Abstract: Embodiments of the present disclosure provide an FEC coding and decoding method and device, and a system. A transmit end determines a forward error correction FEC coding type according to a length of to-be-coded data in burst data, and performs coding according to the determined FEC coding type. A receive end determines a forward error correction FEC decoding type according to a length of to-be-decoded data in burst data, and performs decoding according to the determined FEC decoding type. The FEC coding and decoding method provided in the embodiments of the present disclosure improves utilization of a communication resource is improved, and saves a communication resource.

Abstract translation: 本公开的实施例提供了FEC编码和解码方法和装置以及系统。 发送端根据突发数据中的待编码数据的长度确定前向纠错FEC编码类型，并根据确定的FEC编码类型进行编码。 接收端根据突发数据中待解码数据的长度确定前向纠错FEC解码类型，并根据确定的FEC解码类型进行解码。 本公开的实施例中提供的FEC编码和解码方法提高了通信资源的利用率，并节省了通信资源。

公开(公告)号：US20250168052A1

公开(公告)日：2025-05-22

申请号：US19027357

申请日：2025-01-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoming JIANG ,  Dao PAN

IPC: H04L27/26 ,  H04L7/04

Abstract: This application provides example communication methods and devices. One example method is applied to a receiving device, and the method includes receiving a first data frame, where the first data frame includes a plurality of pieces of synchronization information, and the plurality of pieces of synchronization information are all used for frame synchronization. Frame synchronization is performed on the first data frame based on one or more of the plurality of pieces of synchronization information.

公开(公告)号：US20240267899A1

公开(公告)日：2024-08-08

申请号：US18632592

申请日：2024-04-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dao PAN ,  Zefeng LIN

IPC: H04W72/0446 ,  H04L1/00 ,  H04L5/00 ,  H04W72/0453

CPC classification number: H04W72/0446 ,  H04L1/0003 ,  H04W72/0453 ,  H04L5/0007

Abstract: Embodiments of this application disclose a data transmission method and apparatus, and relate to the communication field, to improve reliability of data transmission in a power line communication system. A master device allocates a first time-frequency resource block to a terminal device, where the first time-frequency resource block is determined based on an available frequency band locally stored in the master device, the available frequency band includes M consecutive subcarriers, each OFDM symbol in the first time-frequency resource block includes N discrete subcarriers in frequency domain, and M is greater than N; and the master device transmits data to the terminal device on the first time-frequency resource block.

公开(公告)号：US20230412210A1

公开(公告)日：2023-12-21

申请号：US18460819

申请日：2023-09-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dao PAN ,  Zefeng LIN

IPC: H04B3/54 ,  H04B3/10

CPC classification number: H04B3/54 ,  H04B3/10

Abstract: This application relates to a method, an apparatus, and a system of power line communication (PLC) for the internet of things (IoT). The method includes: A sending device receives a first request from a receiving device, where the first request requests to perform channel assessment in a first time window in a power line communication periodicity; in response to the first request, the sending device sends a sounding signal required for performing channel assessment to the receiving device; the sending device receives a modulation parameter from the receiving device, where the modulation parameter is determined by performing channel assessment based on the sounding signal; and the sending device performs data transmission with the receiving device in the first time window based on the modulation parameter.

公开(公告)号：US20240421853A1

公开(公告)日：2024-12-19

申请号：US18818279

申请日：2024-08-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuepeng KONG ,  Dao PAN ,  Zefeng LIN ,  Li XU ,  Qian LI

IPC: H04B3/54

Abstract: Embodiments of this application provide a data transmission method applied to power line communication, and a power line communication apparatus and system. The data transmission method includes: a power line node generates a data frame, where the data frame includes a first field, a second field, and a third field, the first field is used to carry a modulation parameter, the second field is used to carry, in a bit mapping manner, identification information that is of at least one destination node of current multicast and that is configured by the power line node, and the third field is used to carry service data; and the power line node sends the data frame to a node in a power line communication network. According to the data transmission method, data can be efficiently transmitted to a plurality of destination nodes to save bandwidth.

公开(公告)号：US20180278270A1

公开(公告)日：2018-09-27

申请号：US15990180

申请日：2018-05-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoshu SI ,  Dao PAN ,  Fanglin SUN ,  Xiaofeng ZHANG ,  Tao OUYANG

IPC: H03M13/17 ,  H04L1/00 ,  H03M13/00 ,  H03M13/11 ,  H03M13/35 ,  H03M13/23 ,  H03M13/15 ,  H03M13/29

CPC classification number: H03M13/17 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/23 ,  H03M13/2957 ,  H03M13/35 ,  H03M13/353 ,  H03M13/611 ,  H03M13/618 ,  H03M13/6516 ,  H04L1/0041 ,  H04L1/0046 ,  H04L1/0075

Abstract: Embodiments of the present disclosure provide an FEC coding and decoding method and device, and a system. A transmit end determines a forward error correction FEC coding type according to a length of to-be-coded data in burst data, and performs coding according to the determined FEC coding type. A receive end determines a forward error correction FEC decoding type according to a length of to-be-decoded data in burst data, and performs decoding according to the determined FEC decoding type. The FEC coding and decoding method provided in the embodiments of the present disclosure improves utilization of a communication resource is improved, and saves a communication resource.

公开(公告)号：US20140133494A1

公开(公告)日：2014-05-15

申请号：US14078235

申请日：2013-11-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haixiang LIANG ,  Dao PAN ,  Xiaofeng ZHANG ,  Fanglin SUN ,  Quanbo ZHAO

IPC: H04L12/18 ,  H04L27/26

CPC classification number: H04L12/18 ,  H04L5/0046 ,  H04L27/2646 ,  H04W4/06 ,  H04W4/08 ,  H04W28/06 ,  H04W28/18 ,  H04W72/005 ,  H04W72/02

Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for multiple access. The method includes: receiving, by a network device, a data packet, where the data packet includes identifier information about a terminal; querying, according to the identifier information about the terminal, a correspondence table between identifier information about a terminal and a broadcast channel, and determining a broadcast channel corresponding to the identifier information about the terminal, where the determined broadcast channel is a broadcast channel among a plurality of preset broadcast channels, and the terminal is any terminal in a terminal group corresponding to the determined broadcast channel; and sending, according to the identifier information about the terminal, through the determined broadcast channel, the data packet to the terminal.

Abstract translation: 本发明的实施例提供了一种用于多次访问的方法，装置和系统。 该方法包括：由网络设备接收数据分组，其中所述数据分组包括关于终端的标识符信息; 根据关于终端的标识符信息查询关于终端的标识符信息与广播信道之间的对应表，以及确定与关于终端的标识符信息相对应的广播信道，其中所确定的广播信道是广播信道之一 多个预设广播频道，终端是对应于所确定的广播频道的终端组中的任何终端; 并且根据关于终端的标识符信息，通过确定的广播信道将数据分组发送到终端。