Huawei Technologies Co., Limited

Alibaba Group Holding Limited

Hangzhou Hikvision Digital Technology Co., Ltd.

Zhejiang Dahua Technology Co., Ltd.

Advanced New Technologies Co., Ltd.

Hangzhou Normal University

Bin Wang

Rong Li

Hejia Luo

Jian Wang

Xiaolu Wang

Xu Zeng

Liangliang Zhu

Zilong Liu

Lingjun Chen

Yunfei Qiao

Pan Pan

Junjie Cai

Rong Jin

Jingming Yu

Xiaoduan Feng

Ming Zhang

Gang Wang

Yu Wang

Yinggang Du

Rongdao Yu

Xueliang Shi

Jiadong Chen

Da Chen

Si Chen

Ying Chen

Wei Wang

Jianwei Zhou

Chenlei Xu

Xin Liu

Xian Meng

Yuqing Zhao

Tianxiang Wang

Chao Li

Xing Wang

Kezhang Lin

Guobao Feng

Huailin Wen

Yufeng Guo

Chengxiang Lu

Sixie Li

Haonan Yan

Xiaohong Guan

Li Wan

Yuyin Wang

Chaohao Li

Dechang Zhu

Weikang Rao

Bingsheng Wang

Xiajing Lou

Xiaohong Zhu

Chaoqun Dong

Han Shi

Jiayu Zheng

Jianwen Zeng

Wenhao Qi

Yankai Shi

Jiani Yao

Shiying Shen

Yahui Liu

Guoyun Wang

Jianfeng Cai

Songlou Hong

Shihua Cao

Junwei Ni

Song Liu

Chengrun He

A systematic security protection method for a multimodal AI model is provided. The method comprises: in a security detection stage of the target multimodal AI model, according to a perceptual distance between detection data and original data determined by a trained distance-aware judgment model, obtaining detection data whose perceptual distance from the original data meets a requirement, and detecting the target multimodal AI model by using the detection data; in a case that the detection result in the detection stage is that the target multimodal AI model has a security problem, on one hand, performing security coding protection and tokenization filtering on the input of the model, on the other hand, performing multi-dimensional omnidirectional evaluation on the multimodal AI model.

Systematic security protection method for multimodal AI model, apparatus and device

Embodiments of this application provide a communication method and apparatus. In the method, a terminal device receives a first signal, and detects F frames of the first signal to obtain a first resource. F may be a multiplexing factor, such as a frequency/polarization multiplexing factor. The terminal device performs detection based on a frame number of the first resource to obtain a second resource. The first resource and the second resource may be a same resource.

Method and apparatus for detecting a signal based on a multiplexing factor

This disclosure provides satellite communication methods and apparatuses. One example method includes that a terminal device determines a first time offset of a first random access response window based on a distance information between a satellite base station and the ground. Based on the first time offset and the first random access response window, the terminal device receives a random access response sent by the satellite base station.

Satellite communication method and apparatus

Embodiments of this application relate to a method for controlling an antenna polarization direction and an antenna system. A first feed array and a second feed array whose polarization directions are orthogonal are disposed in the antenna system. A polarization direction of a beam of a third planar array may be adjusted by adjusting parameters such as beam widths/a beam width of the first feed array and/or the second feed array, phase centers/a phase center of the first feed array and/or the second feed array, and a phase difference between the first feed array and the second feed array.

Method for controlling antenna polarization direction and antenna system

A dynamic orchestration-based audio-video security protection method is provided. A security sharing gateway identifies a level of audio-video data in an audio-video code stream and an authority of an audio-video retrieval platform before forwarding the audio-video code stream to the audio-video retrieval platform. In a case where the security sharing gateway does not retrieve a platform authority corresponding to the level of the audio-video data, it reports alarm information to a network and data security situation awareness platform. The network and data security situation awareness platform issues a platform authority corresponding to the level of the audio-video data to the security sharing gateway according to the alarm information, and in a case where it is determined that the level of the audio-video data does not match the authority of the audio-video retrieval platform, dynamically adjusts a security protection strategy of at least one other gateway in the system.

Dynamic orchestration-based audio-video security protection method, device and system

Systems and methods for data storage are provided. The systems may include one or more storage modules and one or more computing modules. The systems may obtain data to be processed. The systems may determine a required storage bandwidth based on the data to be processed. The systems may determine a distribution mode of a current computing bandwidth of the one or more computing modules based on a current storage bandwidth of the one or more storage modules and the required storage bandwidth.

Systems and methods for data storage and computing

The present disclosure provides a neural network-based security defense method for encrypted multimedia data, including: adding implicit digital watermark information to original encrypted multimedia traffic to obtain watermark encrypted multimedia traffic; determining a first feature sequence of the watermark encrypted multimedia traffic; based on the first feature sequence and a second feature sequence of the original encrypted multimedia traffic, determining a correlation coefficient between the first feature sequence and the second feature sequence; and if the correlation coefficient indicates that a negative correlation between the first feature sequence and the second feature sequence satisfies a preset condition, performing training based on the first feature sequence and the second feature sequence to obtain a target neural network, where the target neural network is configured to identify whether there is implicit digital watermark information in encrypted multimedia traffic to be detected.

Neural network-based security defense method for encrypted multimedia data, electronic device, and computer program product

This application provides example network resource configuration methods and apparatuses. One example method includes receiving configuration information from a network device, where the configuration information includes information of a first threshold corresponding to at least one candidate cell, and the first threshold includes at least one of a Doppler frequency shift threshold, a timing advance TA rate threshold, or a Doppler frequency shift change rate threshold. A target cell is determined from the at least one candidate cell based on the configuration information. A handover to the target cell is initiated.

Network resource configuration method and apparatus

A communication apparatus includes a phase shifter, an input port, and an output port. The phase shifter includes a first structure that includes a first phase difference coupler, a second phase difference coupler, a first, second, third, fourth, a fifth and a sixth phase shifter, a cross coupler, a first combiner, and a second combiner. The first phase difference coupler is coupled to the third and fourth phase shifter, and is further coupled to the cross coupler and the first combiner. The second phase difference coupler is coupled to the fifth and sixth phase shifter, and is further coupled to the second phase shifter and the second combiner. A second output port of the first phase difference coupler is coupled to a first input port of the cross coupler. A first output port of the second phase difference coupler is coupled to an input port of the second phase shifter.

Communication apparatus and system

A monitoring and early warning device for preventing falling during getting up of old people is provided by the disclosure, relating to safety protection for the old people. The device includes a bedstead mechanism, a lifting auxiliary mechanism is arranged at the top of the bedstead mechanism. When the motion sensor monitors an instantaneous acceleration behavior, it's judged that the old people fall; when the TOF radar detects a long-term static behavior of the old people in the external area of the device, it's judged that the old people drop. Abnormal behavior activates the acousto-optic alarm and sends early warnings to intelligent terminals of accompanying personnel and medical staff through a built-in module for warning. Staff unable to offer immediate help could turn on the camera to watch the image information near the device through the intelligent terminal at this time, and take actions based on the old people's condition.

Monitoring and early warning device for preventing falling during getting up of old people

The present disclosure relates to random access preamble transmission methods, apparatuses, and storage mediums. In one example method, a terminal device determines, based on a target sub-coverage area to which the terminal device belongs in a preset coverage area of a network device, target random access preamble format information corresponding to the target sub-coverage area. Then, the terminal device sends, to the network device on a target time-frequency resource indicated by target random access preamble time-frequency resource information corresponding to the target random access preamble format information, a random access preamble corresponding to the target random access preamble format information.

Random access preamble transmission method, apparatus, and storage medium

Embodiments of this application provide a timing advance determining method and a communication apparatus, to improve precision of calculating a timing advance (TA) by a terminal, and reduce inter-symbol interference (ISI). The method includes: A first network device determines a first parameter based on a first delay compensation value, where the first delay compensation value is a delay compensation made by the first network device for receiving a signal sent by a terminal, the first parameter indicates a difference between a round-trip delay of a feeder link in a non-terrestrial network NTN and the first delay compensation value, and the difference is used to determine a TA used by the terminal for signal sending; and the first network device sends the first parameter.

Timing advance determining method and communication apparatus

Example communication methods and apparatus are described. One example method includes generating a first signal and sending a first signal, where the first signal includes an orthogonal frequency division multiplexing (OFDM) symbol, a first-type cyclic prefix (CP), and a second-type CP. CP resources of the first-type CP include two types of CP resources: a first CP resource and a second CP resource. CP resources of the second-type CP include one type of CP resource, that is, the second CP resource. The first CP resource may be used to carry data that is different from data carried on the OFDM symbol. The second CP resource may be used to carry data that is the same as the data carried on the OFDM symbol.

Communication method, apparatus, and device

User equipment receives at least one TAC that is broadcast by a network device, where the TAC includes geographical location information, and the geographical location information is used to indicate a geographical location of a preset location point in a TA corresponding to the TAC. The user equipment determines, based on the TAC and a tracking area list (TAL), whether the TAL needs to be updated. If it is determined that the TAL needs to be updated, the user equipment sends a tracking area update request to the network device. The user equipment receives a response message, of the tracking area update request, returned by the network device.

Satellite tracking area update method and related apparatus

Example random access methods and apparatus are described. In one example, the network device obtains a first random access preamble length of a first terminal device and a second random access preamble length of a second terminal device. The network device determines a first random access parameter of the first terminal device and a second random access parameter of the second terminal device based on the first random access preamble length and the second random access preamble length. The network device sends the first random access parameter and the second random access parameter to the first terminal device and the second terminal device respectively.

Random access method and apparatus, and device

Growing community of inventors

Hangzhou, China

Bin Wang