Huawei Technologies Co., Limited

Delta Electronics (Shanghai) Co., Ltd

Other

Chinese Academy of Sciences

Alcatel

Alibaba Group Holding Limited

Semiconductor Manufacturing International (Shanghai) Corporation

China Petroleum Chemical Corporation

Shanghai Jiao Tong University

Fudan University

Guangdong University of Technology

Shanghai Research Institute of Petrochemical Technology, Sinopec

Shanghai Ic R&d Center Co., Ltd

Lenovo Enterprise Solutions (Singapore) Pte. Ltd.

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Yan Chen

Xiuqiang Xu

Yiqun Wu

Wei Zhang

Shunqing Zhang

Xiaoni Xin

Yi Bin Wang

Le Liang

Liqing Zhang

Yinggang Du

Jianhong Zeng

Wenting Zhu

Nan Luo

Bowei Lu

Jianglei Ma

Shouyu Hong

Xiaomeng Chai

Lei Zhang

Bingguang Peng

Guoxin Wu

Quangang Zhang

Enhua Geng

Meng Cheng

Yalin Liu

Yu Cao

Xianbin Wang

Chaofeng Cai

Rentian Ding

Rong Li

Yongxia Lyu

Jian Wang

Xiaoyan Bi

Tingting Geng

Huazi Zhang

Yiqun Ge

Chao Wang

Shengchen Dai

Yi Tong Wang

Lu Rong

Ye Wu

Pengkai Ji

Qingdong Chen

Xiaoyu Wang

Xiaoqiao Shen

Chao Du

Shangbang Sun

Ming Jia

Chen Zhang

Jian Li

Bo Wang

Zukang Shen

Jin Liu

Qian Zhang

Lei Lu

Xi Zhang

Alireza Bayesteh

Jian Jun Wang

Jiafeng Shao

Yong Wang

Jian Ding

Hong Shen

Yu Zhang

Zhenqing Zhao

Rong Wang

Lu Wang

Shengyu Li

Dageng Chen

Yu Deng

Xudong Wang

Xiangang Luo

Feng Qian

Dan Hu

Xiaoxu Kang

Ganyu Zhou

Xiaohui Ma

Dejin Kong

Mingbo Pu

Xiaoliang Ma

Jinming Li

Xiong Li

Zeyu Zhao

Yuhong Zhu

Le Jin

Jin Yan Chen

Deli Qiao

Yuhang Zhao

Zhaoyang Zhang

Gaoning He

Yungang Li

Ying Huang

Yibo Wang

Shuangshuang Xing

Junhao Chu

Huaying Li

Deqin Yang

Guanjun Ni

This application provides example methods for controlling an output power of an antenna for user equipment. One example method includes, during a sounding reference signal (SRS) transmission period, transmitting, by a first antenna of at least one antenna of the user equipment, a first SRS signal to a base station at a first SRS output power, where the first SRS output power is equal to a maximum output power (P) of the first antenna. During the SRS period, a non-SRS signal is transmitted to the base station at a non-SRS output power, where the non-SRS output power is less than a difference between the maximum output power of the first antenna and a maximum output power reduction of the first antenna, and the maximum output power reduction of the first antenna is set to meet an electromagnetic power density exposure requirement of the first antenna.

Method for controlling output power of antenna, medium, and device

The present disclosure provides a high-order rotational symmetry unit-based nonlinear geometric phase metasurface, which sequentially comprises from the bottom to the top: a substrate (); a nonlinear material layer (); and a metasurface structure layer (), comprising multiple super-configuration units () having local high-order rotational symmetry, wherein the super-configuration units () are periodically arranged to form a lattice structure which has global high-order rotational symmetry. Under the pumping of fundamental waves in a circular polarization state, the nonlinear geometric phase metasurface can simultaneously generate nonlinear harmonic waves having the same and opposite circular polarization states as the fundamental waves, and a nonlinear geometric phase of the generated nonlinear harmonic waves is regulated and controlled by a local rotational symmetry order and lattice structure of the super-configuration units.

High-order rotational symmetry unit-based nonlinear geometric phase metasurface

This application provides a transmit power control method, a terminal, a chip system, and a system. The method includes: A terminal connects to a 4G network device over an LTE link and connects to a 5G network device over an NR link, where transmit power of the NR link is first transmit power; determines to send a first data packet over the NR link, where the first data packet is a preset data packet; adjusts the first transmit power to second transmit power, where the second transmit power is greater than the first transmit power; and sends the first data packet at the second transmit power over the NR link.

Transmit power control method, terminal, chip system, and system

An edge server and edge server system including: a host processor, a switch board controller, and a wireless interface coupled to the host processor and the switch board controller. The switch board controller is configured to route data received through the wireless interface to the host processor if the edge server is in a default mode. The switch board controller is further configured to route the received data independently of the host processor to an alternate edge server via the wireless interface if the edge server is in a relay mode.

Edge server and edge server system

The present disclosure relates to channel conflict processing methods and apparatus. In one example method, when a terminal device establishes a connection relationship with a source cell, and sends a connection request to or establishes a connection relationship with a target cell, the terminal device detects whether an uplink channel conflict occurs on an uplink channel of the source cell and an uplink channel of the target cell, where the source cell and the target cell are infra-frequency or intra-band contiguous inter-frequency. If the terminal device determines that an uplink channel conflict occurs, the terminal device sends a signal on an uplink channel with a higher priority between the uplink channel of the source cell and the uplink channel of the target cell.

Channel conflict processing method and apparatus

A polar code segment encoding method and a related apparatus are disclosed, and the method includes: determining, based on an information bit quantity of a first information bit sequence and a first code rate, a target code length for polar code encoding; determining an initial code length based on the target code length, where the initial code length is an integer multiple of a smallest segment code length; dividing the first information bit sequence into S segments of information bit sequences based on the first code rate and the initial code length and when the initial code length is different from the target code length, performing rate matching on the S segments in a process of performing polar code encoding on the S segments of information bit sequences, where a sum of segment code lengths of the S segments is the target code length after the rate matching.

Polar code segment encoding method and related apparatus

Embodiments of this application disclose a software integrity protection method and apparatus. A first device obtains a first software package, where the first software package includes a first signature made by a first party for a second software package by using a first private key; and the first device performs a signing operation on the first software package by using a second private key, to obtain a third software package including a second signature, where the first private key is controlled by the first party, and the second private key is controlled by a second party. The first device sends the third software package to a second device. The second device verifies the first signature and the second signature in the third software package respectively based on a first public key and a second public key that are prestored, to obtain a verification result.

Software integrity protection method and apparatus, and software integrity verification method and apparatus

A method for measuring pipeline corrosion includes: obtaining a material property of a to-be-detected pipeline, and calculating a theoretical dispersion curve of the to-be-detected pipeline based on the material property; determining a theoretical frequency-thickness product and a theoretical frequency of a zero-group-velocity (ZGV) Lamb wave mode from the theoretical dispersion curve; obtaining a target excitation signal corresponding to the theoretical frequency; sending the target excitation signal to the to-be-detected pipeline and receiving a target waveform, where the target waveform is obtained by reflecting the target excitation signal through the to-be-detected pipeline; determining an actual frequency of the ZGV Lamb wave mode from the target waveform; and calculating corrosion of the to-be-detected pipeline based on the theoretical frequency-thickness product and the actual frequency of the ZGV Lamb wave mode.

Method, device, and system for measuring pipeline corrosion

This application provides a communication method in a dual-connectivity mode. In the communication method, maximum transmit power used by a terminal device to send a message corresponding to a main network protocol in a semi-persistent power sharing mode is maximum transmit power 2, maximum transmit power used by the terminal device to send a message corresponding to a secondary network protocol is maximum transmit power 3, the maximum transmit power 2 is less than theoretical maximum transmit power corresponding to the main network protocol, and the maximum transmit power 3 is greater than the theoretical maximum transmit power corresponding to the main network protocol.

Communication method and terminal device

A method and apparatus to configure grant-free transmission resources are provided. At least two configuration options can co-exist for configuring the grant-free transmission resources. The base station may explicitly or implicitly notify a user equipment which option is selected for grant-free transmission by that user equipment.

Methods and systems for resource configuration of wireless communication systems

This application discloses a communication method and an apparatus. A principle of the method is as follows: A spreading factor of a spreading block is adjusted based on available resource elements REs in a time-frequency resource block, then, the spreading block is generated by using the adjusted spreading factor, and finally, the generated spreading block is mapped to the available resource elements in the time-frequency resource block for sending. In this way, a requirement that 'locations of spreading blocks of a plurality of users need to be aligned' can be satisfied, and no complex symbol is discarded, so that detection performance of the spreading blocks is ensured.

Communication method and apparatus

An uplink dynamic grant-free transmission method and an apparatus, and relates to the field of communications technologies. The method includes: a terminal receives downlink control information sent by a base station, where the downlink control information includes a plurality of pieces of indication information, each piece of indication information corresponds to one type 2 configured grant configuration, the indication information is used to indicate the terminal to perform an operation on the type 2 configured grant configuration corresponding to the indication information, and the operation includes: activating, deactivating, or maintaining a state; and then the terminal performs corresponding operations on the plurality of type 2 configured grant configurations based on the downlink control information.

Uplink dynamic grant-free transmission method and apparatus

A resource mapping method and apparatus are described that reduce resource mapping complexity. The method includes an access network device obtaining resource mapping information of at least one terminal, and sending the resource mapping information to the at least one terminal respectively. The resource mapping information indicates a resource element RE to which each of the at least one terminal performs mapping in each RMB in a first resource mapping block RMB set. An RE to which a first terminal performs mapping in each RMB in the first RMB set is determined based on a first interleaved sequence, and the first interleaved sequence is determined based on a base sequence. The first terminal is any one of the at least one terminal, and the first RMB set includes at least one RMB.

Resource mapping method and apparatus

A method and communications apparatus to help improve time-frequency resource utilization. The method includes generating, based on a first non-orthogonal access parameter, a signal that carries uplink data, where the signal that carries the uplink data occupies a first time-frequency resource, generating, based on a second non-orthogonal access parameter, a signal that carries uplink control information, where the signal that carries the uplink control information occupies a second time-frequency resource, the first time-frequency resource overlaps the second time-frequency resource, and the first non-orthogonal access parameter is different from the second non-orthogonal access parameter, and sending the signal that carries the uplink data and the signal that carries the uplink control information.

Method for transmitting uplink signal and communications apparatus

Disclosed are a mercury cadmium telluride-black phosphorus van der Waals heterojunction infrared polarization detector and a preparation method thereof. The structure of the detector from bottom to top comprises a substrate, a mercury cadmium telluride material, an insulating layer, a two-dimensional semiconductor black phosphorus, and metal electrodes. First, growing the mercury cadmium telluride material on the substrate, removing part of the mercury cadmium telluride by ultraviolet lithography and argon ion etching, filling with aluminum oxide as the insulating layer using an electron beam evaporation method, transferring the two-dimensional semiconductor material black phosphorus at the junction of mercury cadmium telluride and an insulating layer assisted by a polypropylene carbonate film, and preparing the metal source-drain electrodes by electron beam lithography technology combined with the lift-off process to form the mercury cadmium telluride-black phosphorus van der Waals heterojunction infrared polarization detector.

Mercury cadmium telluride-black phosphorous van der waals heterojunction infrared polarization detector and preparation method thereof

Growing community of inventors

Shanghai, China

Yan Chen