With the acceleration of the intelligent transformation of power systems,the requirements for communication technology are increasingly stringent.The application of 5G mobile communication technology in power communic...With the acceleration of the intelligent transformation of power systems,the requirements for communication technology are increasingly stringent.The application of 5G mobile communication technology in power communication is analyzed.In this study,5G technology features,application principles,and practical strategies are discussed,and methods such as network slicing,customized deployment,edge computing collaborative application,communication equipment integration and upgrading,and multi-technology collaboration and complementation are proposed.It aims to effectively improve the efficiency,reliability,and security of power communication,solve the problem that traditional communication technology is difficult to meet the diversified needs of power business,and achieve the effect of optimizing the power communication network and supporting the intelligent development of the power system.展开更多
With the rapid growth of mobile data traffic and the continuous expansion of various new services, 5G mobile communication technology aiming at meeting the wide application requirements of ultra-high service throughpu...With the rapid growth of mobile data traffic and the continuous expansion of various new services, 5G mobile communication technology aiming at meeting the wide application requirements of ultra-high service throughput has become a research hotspot. Full duplex communication technology can double the spectral efficiency. With the emergence of effective self-interference cancellation technology, full duplex technology is widely used. Non orthogonal multiple access technology allows multiple users to transmit information in the same time-frequency resources. Noma technology can simplify the access process and meet the low delay requirements of 5G network.5G technology has become the core technology of communication engineering construction, which can improve the transmission quality of communication engineering and provide strong support for intelligent communication. Affected by many factors, 5G technology is not ideal in communication engineering. In recent years, the expansion of domestic science and technology has continued to accelerate, and the world's development is moving towards intelligence. The application of 5G technology has effectively improved the speed of information and data transmission.展开更多
In order to forecast promising technologies in the field of next generation mobile communication, various patent indicators were analyzed such as citation per patent, patent family information, patent share, increase ...In order to forecast promising technologies in the field of next generation mobile communication, various patent indicators were analyzed such as citation per patent, patent family information, patent share, increase rate, and patent activity. These indicators were quantified into several indexes and then integrated into an evaluation score to provide promising technologies. As a result of the suggested patent analysis, four technologies out of twenty two in details classification were selected, which showed outstanding technology competitiveness, high patent share and increasing rates as well as high recent-patent-ratios and triad-patent-family-ratios. Each of the selected technologies scored more than 10 points in total, and the following four technologies were suggested as promising ones in the field of next generation mobile communication: 1) 3GPP based mobile communication, 2) beyond 4G mobile communication, 3) IEEE 802.16 based mobile communication, which are in medium classification of broadband mobile communication system, and 4) testing/certification system of mobile communication, which is in medium classification of mobile communication testing/certification system.展开更多
Phosphor bronze is a commonly used elastic copper alloy,widely applied in electronic connectors and terminals[1-4].With the rapid development of 5 G mobile communication technology and the new energy vehicle industry,...Phosphor bronze is a commonly used elastic copper alloy,widely applied in electronic connectors and terminals[1-4].With the rapid development of 5 G mobile communication technology and the new energy vehicle industry,the size requirements for connectors have been reduced,while the demand for strength has gradually increased[5].This requires the alloy to possess higher strength and better deformability.展开更多
To the Editor:Telesurgery represents a promising advancement in medical technology,allowing skilled surgeons to perform complex procedures remotely.By leveraging high-speed internet infrastructure such as 5th generati...To the Editor:Telesurgery represents a promising advancement in medical technology,allowing skilled surgeons to perform complex procedures remotely.By leveraging high-speed internet infrastructure such as 5th generation mobile communication technology(5G),telesurgery has the potential to overcome geographical constraints and expand access to expert surgical care.However,its successful implementation depends on several critical factors,including stable,low-latency data transmission,reliable network performance,and the ability to maintain surgical precision over long distances.Patel et al[1]established a remote surgical connection between Orlando and Shanghai using 5G,Wi-Fi,and fiber-optic technologies,and performed 10 robot-assisted nephrectomies on pig models.Rogers et al[2]reported on a short-distance study in which three surgeons completed remote robot-assisted prostatectomies,demonstrating that telesurgery can be safely performed using low-latency telecommunications.Additionally,our team has previously conducted a series of remote animal model procedures and short-distance clinical trials.[3,4]In this study,we evaluated the feasibility of cross-continental telesurgery,specifically examining the use of 5G networks and dedicated internet lines to ensure high-speed,uninterrupted communication between the surgical console and operative site[Figure 1A].展开更多
BACKGROUND:Rapid on-site triage is critical after mass-casualty incidents(MCIs)and other mass injury events.Unmanned aerial vehicles(UAVs)have been used in MCIs to search and rescue wounded individuals,but they mainly...BACKGROUND:Rapid on-site triage is critical after mass-casualty incidents(MCIs)and other mass injury events.Unmanned aerial vehicles(UAVs)have been used in MCIs to search and rescue wounded individuals,but they mainly depend on the UAV operator’s experience.We used UAVs and artificial intelligence(AI)to provide a new technique for the triage of MCIs and more efficient solutions for emergency rescue.METHODS:This was a preliminary experimental study.We developed an intelligent triage system based on two AI algorithms,namely OpenPose and YOLO.Volunteers were recruited to simulate the MCI scene and triage,combined with UAV and Fifth Generation(5G)Mobile Communication Technology real-time transmission technique,to achieve triage in the simulated MCI scene.RESULTS:Seven postures were designed and recognized to achieve brief but meaningful triage in MCIs.Eight volunteers participated in the MCI simulation scenario.The results of simulation scenarios showed that the proposed method was feasible in tasks of triage for MCIs.CONCLUSION:The proposed technique may provide an alternative technique for the triage of MCIs and is an innovative method in emergency rescue.展开更多
将机器人采集到的温度、湿度和位置等数据信息传送至云平台服务器,便于云端数据分析、机器人数据共享以及人机信息交互等。本文应用第4代移动通信技术(the 4th generation mobile communication technology,4G)无线传输技术,设计的机器...将机器人采集到的温度、湿度和位置等数据信息传送至云平台服务器,便于云端数据分析、机器人数据共享以及人机信息交互等。本文应用第4代移动通信技术(the 4th generation mobile communication technology,4G)无线传输技术,设计的机器人与云平台无线数据传输系统主要包括硬件和软件实现2个部分,硬件方面机器人通过32位微控制器(STMicroelectronics32,STM32)嵌入式系统与4G模块组合,将传感器采集到的数据信息,通过Internet网络传输到云平台服务器中,软件部分运用C语言编程通过网络透传模式(transmission control protocol/user datagram protocol, TCP/UDP)实现无线通信过程,最终实验验证了机器人与云平台服务器之间的双向无线数据传输功能。展开更多
Spatio-temporal cellular network traffic prediction at wide-area level plays an important role in resource reconfiguration,traffic scheduling and intrusion detection,thus potentially supporting connected intelligence ...Spatio-temporal cellular network traffic prediction at wide-area level plays an important role in resource reconfiguration,traffic scheduling and intrusion detection,thus potentially supporting connected intelligence of the sixth generation of mobile communications technology(6G).However,the existing studies just focus on the spatio-temporal modeling of traffic data of single network service,such as short message,call,or Internet.It is not conducive to accurate prediction of traffic data,characterised by diverse network service,spatio-temporality and supersize volume.To address this issue,a novel multi-task deep learning framework is developed for citywide cellular network traffic prediction.Functionally,this framework mainly consists of a dual modular feature sharing layer and a multi-task learning layer(DMFS-MT).The former aims at mining long-term spatio-temporal dependencies and local spatio-temporal fluctuation trends in data,respectively,via a new combination of convolutional gated recurrent unit(ConvGRU)and 3-dimensional convolutional neural network(3D-CNN).For the latter,each task is performed for predicting service-specific traffic data based on a fully connected network.On the real-world Telecom Italia dataset,simulation results demonstrate the effectiveness of our proposal through prediction performance measure,spatial pattern comparison and statistical distribution verification.展开更多
Mobile phone manufacturer TCL Communication Technology Holdings Ltd', a subsidiaryof TCL Corporation, will produce trial TD-SCDMA handsets by this October, according to a TCL Communication announcement.
Global Navigation Satellite Systems(GNSS)is able to achieve centimeter-level accuracy in open-sky areas.However,their performance declines in urban canyons and outdoor shadow areas.Conversely,commercial Fifth Generati...Global Navigation Satellite Systems(GNSS)is able to achieve centimeter-level accuracy in open-sky areas.However,their performance declines in urban canyons and outdoor shadow areas.Conversely,commercial Fifth Generation Mobile Communications Technology(5G)New Radio(NR)signals,with their wider bandwidth and shorter wavelengths,ofer better range accuracy.To enhance positioning accuracy in challenging environments,we developed a deeply integrated method to combine commercial 5G NR signals with the GNSS.This method involves three key steps:Firstly,we use the Secondary Synchronization Signal to aid the Demodulation Reference Signal(SA-DMRS)in the 5G NR synchronization channel,which aims to improve the tracking loop robustness.Secondly,a Phase-Stabilized Kalman Filter(PSKF)is integrated into the Phase-Locked Loop to boost performance under low Carrier-to-Noise Density Ratio conditions.Lastly,the Extended Kalman Filter(EKF)is applied to fuse 5G and GNSS signals for positioning,and the results are fed back to correct the 5G NR tracking loop.Field tests revealed that SA-DMRS boosted range accuracy by 42.3%,PSKF contributed a further 17%improvement,and GNSS-aided improved the range accuracy by about 33.3%.Compared to the GPS(Global Positioning System)-EKF method,our fusion approach enhances horizontal positioning accuracy by approximately 49.8%,and the vertical positioning accuracy is improved by about 53.3%.Additionally,compared to the GPS-only method,the proposed method can still provide positioning services when there are three usable satellites.Compared with the GNSS-only method,the deep coupled method improved the accuracy in the horizontal and vertical by about 51.2%and 24.0%,respectively.These confrm the method’s efectiveness for accurate and reliable positioning in challenging environments.展开更多
摘要With the acceleration of the intelligent transformation of power systems,the requirements for communication technology are increasingly stringent.The application of 5G mobile communication technology in power communication is analyzed.In this study,5G technology features,application principles,and practical strategies are discussed,and methods such as network slicing,customized deployment,edge computing collaborative application,communication equipment integration and upgrading,and multi-technology collaboration and complementation are proposed.It aims to effectively improve the efficiency,reliability,and security of power communication,solve the problem that traditional communication technology is difficult to meet the diversified needs of power business,and achieve the effect of optimizing the power communication network and supporting the intelligent development of the power system.
摘要With the rapid growth of mobile data traffic and the continuous expansion of various new services, 5G mobile communication technology aiming at meeting the wide application requirements of ultra-high service throughput has become a research hotspot. Full duplex communication technology can double the spectral efficiency. With the emergence of effective self-interference cancellation technology, full duplex technology is widely used. Non orthogonal multiple access technology allows multiple users to transmit information in the same time-frequency resources. Noma technology can simplify the access process and meet the low delay requirements of 5G network.5G technology has become the core technology of communication engineering construction, which can improve the transmission quality of communication engineering and provide strong support for intelligent communication. Affected by many factors, 5G technology is not ideal in communication engineering. In recent years, the expansion of domestic science and technology has continued to accelerate, and the world's development is moving towards intelligence. The application of 5G technology has effectively improved the speed of information and data transmission.
摘要In order to forecast promising technologies in the field of next generation mobile communication, various patent indicators were analyzed such as citation per patent, patent family information, patent share, increase rate, and patent activity. These indicators were quantified into several indexes and then integrated into an evaluation score to provide promising technologies. As a result of the suggested patent analysis, four technologies out of twenty two in details classification were selected, which showed outstanding technology competitiveness, high patent share and increasing rates as well as high recent-patent-ratios and triad-patent-family-ratios. Each of the selected technologies scored more than 10 points in total, and the following four technologies were suggested as promising ones in the field of next generation mobile communication: 1) 3GPP based mobile communication, 2) beyond 4G mobile communication, 3) IEEE 802.16 based mobile communication, which are in medium classification of broadband mobile communication system, and 4) testing/certification system of mobile communication, which is in medium classification of mobile communication testing/certification system.
基金support of the Natural Science Foundation of China(Nos.U23A20611 and 52071050)the Innovation and Entrepreneurship of High-level Talents Project of Dalian(No.2020RD07)the Science and Technology Innovation Project of Ningbo(No.2024Z077).
摘要Phosphor bronze is a commonly used elastic copper alloy,widely applied in electronic connectors and terminals[1-4].With the rapid development of 5 G mobile communication technology and the new energy vehicle industry,the size requirements for connectors have been reduced,while the demand for strength has gradually increased[5].This requires the alloy to possess higher strength and better deformability.
基金supported in part by the National Key Research and Development Program of China(No.2023YFB4706000).
摘要To the Editor:Telesurgery represents a promising advancement in medical technology,allowing skilled surgeons to perform complex procedures remotely.By leveraging high-speed internet infrastructure such as 5th generation mobile communication technology(5G),telesurgery has the potential to overcome geographical constraints and expand access to expert surgical care.However,its successful implementation depends on several critical factors,including stable,low-latency data transmission,reliable network performance,and the ability to maintain surgical precision over long distances.Patel et al[1]established a remote surgical connection between Orlando and Shanghai using 5G,Wi-Fi,and fiber-optic technologies,and performed 10 robot-assisted nephrectomies on pig models.Rogers et al[2]reported on a short-distance study in which three surgeons completed remote robot-assisted prostatectomies,demonstrating that telesurgery can be safely performed using low-latency telecommunications.Additionally,our team has previously conducted a series of remote animal model procedures and short-distance clinical trials.[3,4]In this study,we evaluated the feasibility of cross-continental telesurgery,specifically examining the use of 5G networks and dedicated internet lines to ensure high-speed,uninterrupted communication between the surgical console and operative site[Figure 1A].
基金Sanming Project of Medicine in Shenzhen(No.SZSM201911007)Shenzhen Stability Support Plan(20200824145152001)。
摘要BACKGROUND:Rapid on-site triage is critical after mass-casualty incidents(MCIs)and other mass injury events.Unmanned aerial vehicles(UAVs)have been used in MCIs to search and rescue wounded individuals,but they mainly depend on the UAV operator’s experience.We used UAVs and artificial intelligence(AI)to provide a new technique for the triage of MCIs and more efficient solutions for emergency rescue.METHODS:This was a preliminary experimental study.We developed an intelligent triage system based on two AI algorithms,namely OpenPose and YOLO.Volunteers were recruited to simulate the MCI scene and triage,combined with UAV and Fifth Generation(5G)Mobile Communication Technology real-time transmission technique,to achieve triage in the simulated MCI scene.RESULTS:Seven postures were designed and recognized to achieve brief but meaningful triage in MCIs.Eight volunteers participated in the MCI simulation scenario.The results of simulation scenarios showed that the proposed method was feasible in tasks of triage for MCIs.CONCLUSION:The proposed technique may provide an alternative technique for the triage of MCIs and is an innovative method in emergency rescue.
摘要将机器人采集到的温度、湿度和位置等数据信息传送至云平台服务器,便于云端数据分析、机器人数据共享以及人机信息交互等。本文应用第4代移动通信技术(the 4th generation mobile communication technology,4G)无线传输技术,设计的机器人与云平台无线数据传输系统主要包括硬件和软件实现2个部分,硬件方面机器人通过32位微控制器(STMicroelectronics32,STM32)嵌入式系统与4G模块组合,将传感器采集到的数据信息,通过Internet网络传输到云平台服务器中,软件部分运用C语言编程通过网络透传模式(transmission control protocol/user datagram protocol, TCP/UDP)实现无线通信过程,最终实验验证了机器人与云平台服务器之间的双向无线数据传输功能。
基金supported in part by the Science and Technology Project of Hebei Education Department(No.ZD2021088)in part by the S&T Major Project of the Science and Technology Ministry of China(No.2017YFE0135700)。
摘要Spatio-temporal cellular network traffic prediction at wide-area level plays an important role in resource reconfiguration,traffic scheduling and intrusion detection,thus potentially supporting connected intelligence of the sixth generation of mobile communications technology(6G).However,the existing studies just focus on the spatio-temporal modeling of traffic data of single network service,such as short message,call,or Internet.It is not conducive to accurate prediction of traffic data,characterised by diverse network service,spatio-temporality and supersize volume.To address this issue,a novel multi-task deep learning framework is developed for citywide cellular network traffic prediction.Functionally,this framework mainly consists of a dual modular feature sharing layer and a multi-task learning layer(DMFS-MT).The former aims at mining long-term spatio-temporal dependencies and local spatio-temporal fluctuation trends in data,respectively,via a new combination of convolutional gated recurrent unit(ConvGRU)and 3-dimensional convolutional neural network(3D-CNN).For the latter,each task is performed for predicting service-specific traffic data based on a fully connected network.On the real-world Telecom Italia dataset,simulation results demonstrate the effectiveness of our proposal through prediction performance measure,spatial pattern comparison and statistical distribution verification.
摘要Mobile phone manufacturer TCL Communication Technology Holdings Ltd', a subsidiaryof TCL Corporation, will produce trial TD-SCDMA handsets by this October, according to a TCL Communication announcement.
基金The National Natural Science Foundation of China(42171417)Medium-and Long-term Scientifc and Technological Planning Projects for Radio,Television and Audio-Visual Networks+1 种基金Guangxi Science and Technology Major Project(AA22068072)Major Science and Technology Project of Jiangsu Province(No.BG2024003).
摘要Global Navigation Satellite Systems(GNSS)is able to achieve centimeter-level accuracy in open-sky areas.However,their performance declines in urban canyons and outdoor shadow areas.Conversely,commercial Fifth Generation Mobile Communications Technology(5G)New Radio(NR)signals,with their wider bandwidth and shorter wavelengths,ofer better range accuracy.To enhance positioning accuracy in challenging environments,we developed a deeply integrated method to combine commercial 5G NR signals with the GNSS.This method involves three key steps:Firstly,we use the Secondary Synchronization Signal to aid the Demodulation Reference Signal(SA-DMRS)in the 5G NR synchronization channel,which aims to improve the tracking loop robustness.Secondly,a Phase-Stabilized Kalman Filter(PSKF)is integrated into the Phase-Locked Loop to boost performance under low Carrier-to-Noise Density Ratio conditions.Lastly,the Extended Kalman Filter(EKF)is applied to fuse 5G and GNSS signals for positioning,and the results are fed back to correct the 5G NR tracking loop.Field tests revealed that SA-DMRS boosted range accuracy by 42.3%,PSKF contributed a further 17%improvement,and GNSS-aided improved the range accuracy by about 33.3%.Compared to the GPS(Global Positioning System)-EKF method,our fusion approach enhances horizontal positioning accuracy by approximately 49.8%,and the vertical positioning accuracy is improved by about 53.3%.Additionally,compared to the GPS-only method,the proposed method can still provide positioning services when there are three usable satellites.Compared with the GNSS-only method,the deep coupled method improved the accuracy in the horizontal and vertical by about 51.2%and 24.0%,respectively.These confrm the method’s efectiveness for accurate and reliable positioning in challenging environments.