Vivo Mobile Communication Co., Ltd.

Gree Electric Appliances, Inc. of Zhuhai

Guangzhou Qingkuai Innovation Technology Co., Ltd.

Hkc Corporation Limited

South China University of Technology

Electric Power Research Institute, China Southern Power Grid

Shenzhen Energy Storage Electronics Co., Ltd

Shenzhen Coship Electronics Co., Ltd.

China Southern Power Grid

Shenzhen Synsense Technology Co., Ltd.

Huawei Technologies Co., Limited

Hao Liu

Peng Sun

Xiaodong Sun

Baohong Kang

Wei Wang

Xiaohang Chen

Yang Song

Gang Liu

Jie Hu

Zhongjie Liu

Rakesh Tamrakar

Hong Rao

Wei Xi

Lei Jia

Feng Cao

Guowen Gao

Guoqi Li

Ning Qiao

Yi Zhang

Haohua Li

Heng Chen

Langming Wen

Yi Tao

Dongyue Wang

Binhua Long

Jianhuang Zou

Jiangxiong Wei

Qijun Yu

Li Fang

Ruifa Feng

Licheng Li

Xintong Wu

Haoliang Huang

Chuang Lin

Huaqiu Zhang

Peng Zhou

Dylan Richard Muir

Saeid Haghighatshoar

Hansheng Cai

Jian Shi

Qi Mei

Ruihan Qi

Shangmao Hu

Minchuan Liao

Taishan Hu

Lu Qu

Kaili Zheng

Haoliang Zhang

This application discloses a beam training method and apparatus, a terminal device, and a network device. The beam training method in this application includes: measuring at least two reference signals used for beam training and forwarded by an auxiliary device in at least two forwarding modes to obtain measurement information, where the measurement information is used for indicating an optimal forwarding mode of the auxiliary device, and a forwarding mode of the auxiliary device is determined by using a beam direction of a forwarded signal of the auxiliary device and a beam phase of the forwarded signal of the auxiliary device; and reporting the measurement information to a network device.

Beam training method and apparatus, terminal device, and network device

A divisive normalization method, device, audio feature extractor, and a chip are disclosed. For improving the robustness against variations of the background noise, the proposed per-channel divisive normalization method comprises: obtaining an average number of input spikes over an averaging window by a low-pass filter to produce a threshold parameter, then deciding whether to enable an integrate-and fire (IAF) counter counting over a clock period of a divisive normalization module, when the count value of IAF counter reaches the threshold, resetting IAF counter and producing a single spike at the output. Compared with the prior art, the proposed method does not require any Linear Feedback Shift Register (LFSR) and is easier to implement. It also has a simpler structure, higher accuracy and better statistical performance, and a lower cost and a lower power consumption.

Divisive normalization method, device, audio feature extractor and a chip

Mixing container lid

Folding wagon

Disclosed are a crack self-healing agent for cement-based materials capable of binding corrosive ions in seawater, and a preparation method thereof. A core material of the agent is an active inorganic composite component capable of chemically binding Cl, Mg, and S, a wall layer is polymethyl methacrylate, and an interface improvement layer is a cement layer. A preparation method includes: (1) thoroughly mixing active components capable of binding corrosive ions, and filling a resulting mixture into a direct compression mold; (2) applying a pressure to the direct compression mold and holding the pressure on using a pressing machine, and demolding to obtain a core material body; (3) placing the core material body obtained in a solution of PMMA in acetone for coating, and taking out the core material body and drying; (4) coating a layer of cement before the acetone is completely volatilized to obtain the crack self-healing agent.

Crack self-healing agent for cement-based materials capable of binding corrosive ions in seawater, and preparation method thereof

A deep well grounding electrode and a deep well grounding electrode monitoring system. The deep well grounding electrode comprises a feeding rod, a feeding head, a steel casing, a temperature measurement optical cable, an exhaust pipe, and a drainage cable; the steel casing is located in the well body; the feeding head is located at the bottom of the steel casing; the feeding rod, the temperature measurement optical cable, the exhaust pipe, and the drainage cable are located in the steel casing; the temperature measurement optical cable extends from a bottom end of the feeding rod to a monitoring module; the exhaust pipe extends from the bottom end of the feeding rod to the ground; and one end of the drainage cable is welded on the feeding rod, the other end extends to the monitoring module, and the drainage cable is fixed to the feeding rod by bolts.

Deep well grounding electrode and deep well grounding electrode monitoring system

Embodiments of this disclosure provide a method for 2-step random access and a terminal. The method includes: receiving one or more pieces of configuration information for 2-step random access; and determining a transmission resource and/or a transmission mode based on the configuration information and assistance uplink transmission information, and performing uplink transmission.

Method for 2-step random access and terminal

A reference signal sending method and a transmitter are provided. The method includes: determining a time-frequency resource pattern of a target reference signal used for interference measurement, where the time-frequency resource pattern is used to indicate a time domain location and a frequency domain location of the target reference signal; and sending the target reference signal based on the time-frequency resource pattern.

Reference signal sending method and transmitter

The present disclosure provides a backlight module and a display device. The backlight module includes a substrate, a light-emitting layer, and a light refracting layer. The light-emitting layer is disposed on the substrate and includes multiple light-emitting units arranged at intervals. The light-emitting unit is configured to emit light. The light-refracting layer includes multiple first medium parts and multiple second medium parts, where the first medium part covers a surface of the light-emitting unit, and the second medium part is arranged between adjacent first medium parts. The first medium part has a first refractive index nfor light emitted by the light-emitting unit, and the second medium part has a second refractive index nfor the light emitted by the light-emitting unit, where n>n.

Backlight module and display device

A method for reference signal generation and a communications device are provided. The method includes: in a case that indication information is received from a second communications device, performing first modulation and then discrete Fourier transform modulation on at least one of target-reference-signal sequences to generate a target reference signal, where the first modulation includes any one of the following: π/2-BPSK modulation and 8-PSK modulation, and the indication information is used to indicate that a first communications device uses the target reference signal for transmission.

Method for reference signal generation and communications device

This disclosure provides a transmission method and a first communication device. The method includes: transmitting, by a first communication device, a target reference signal that belongs to a first type of reference signal in a case that the first communication device receives indication information from a second communication device and the indication information indicates transmission of the first type of reference signal, where a reference signal sequence of the first type of reference signal is generated based on a first characteristic.

Transmission method and first communication device

This disclosure provides an uplink signal transmission method and user equipment and relates to the field of communications technologies. The uplink signal transmission method includes: selecting, by the user equipment, a CP from a preset cyclic prefix CP candidate set to send an uplink transmission signal, where the CP candidate set includes at least two types of CPs of different lengths.

Uplink signal transmission method and user equipment

A device and method for data protection, and a storage controller, related to the technical field of data protection. The device comprises: an encryption unit (), used for receiving first data to be written into a storage module and first storage address information (), and for encrypting the first data on the basis of the first storage address information and of feature information of the storage module (); and a decryption unit (), used for reading from the storage module second data corresponding to second storage address information (), and for decrypting the second data on the basis of the second storage address information and of the feature information ().

Data protection device and method and storage controller

An OFDM symbol generation method and a communication device are provided. The method includes: generating a target sequence based on a PTRS bit sequence, wherein the target sequence includes a symbol sequence generated by inserting the PTRS bit sequence into a data bit sequence and performing modulation, a symbol sequence generated by inserting a modulated symbol sequence of the PTRS bit sequence into a modulated symbol sequence of the data bit sequence and performing phase-rotation, or a symbol sequence generated by inserting a PTRS symbol sequence into a data symbol sequence, the PTRS symbol sequence is generated by modulating the PTRS bit sequence according to an index of a PTRS bit, the data symbol sequence is generated by modulating the data bit sequence according to an index of a data bit; and generating the OFDM symbol based on the target sequence.

Orthogonal frequency division multiplexing symbol generation method and communication device

A blade, an impeller and a fan are provided. A trailing edge () of the blade () is provided with at least one concave arc segment (). At least one end point of the at least one concave arc segment () is located between a radial outer edge () of the blade () and a radial inner edge () of the blade (). The blade () is provided with at least one ridge structure protruding from a pressure surface () of the blade () toward a suction surface () of the blade (). The blade is provided with at least one concave arc segment at a trailing edge thereof on the basis of a bionics principle, and is further provided with a ridge structure, thus improving an airflow pattern at the trailing edge of the blade by means of changing a shape of the blade, and reducing noise accordingly.

Blade, impeller and fan

Growing community of inventors

Guangdong, China

Hao Liu