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zte Communications 2013年第3期11卷 61-61页

作者： zte Corporation zte Corporation

5 October 2013, Houston--The Houston Rockets and zte usa, the fastest-growing smartphone provider in the United States, announced that zte will be the official smartphone of the Houston Rockets for the 2013-14 NBA season. This is the first partnership of its kind for zte globally and the first big consumer marketing push in the United States since the company entered the country 15 years ago.

关键词： zte usa Announces Its First Corporate Partnership and Consumer Marketing Push in Conjunction with the Houston Rockets Push usa

Cascaded channel decoupling based solution for RIS regulation matrix

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Intelligent and Converged Networks 2024年第1期5卷 19-27页

作者： Yajun Zhao Beijing Institute of Technology Beijing 100081China zte Corporation Beijing 100029China

This article presents a pioneering solution to address the challenges of reconfigurable intelligent surface(RIS),employing a cascaded channel decoupling *** novel method streamlines the RIS regulation matrix by dividing the process of electromagnetic wave modulation into two separate sub-processes:virtual receiving response and virtual regular transmission,resulting in the decoupling of the RIS cascaded ***,the paper explores the practical implementation of this channel decoupling method in two typical scenarios,including single-user and multi-user access,offering detailed insights into its *** numerical simulations,the article demonstrates the effectiveness and reduced complexity of the proposed scheme in enhancing the efficiency of the RIS regulation matrix.

关键词： reconfigurable intelligent surface channel decoupling receiving matrix transmitting matrix

Design and Implementation of NOMA Backscatter Communication with Low-Precision Oscillators

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Journal of Communications and Information Networks 2024年第3期9卷 286-295页

作者： Kun Zhang Zhongye Cao Huixin Dong Zhiqing Luo Luanjian Bian Wei Wang School of Electronic Information and Communications Huazhong University of Science and TechnologyWuhan 430074China zte Corporation Shenzhen 518057China

Recent years have witnessed increasing demands for the large-scale deployment of Internetof-things(IoT)*** technologies are promising to meet these demands with the notable low power consumption and ***,the conventional designs of backscatter prioritize energy efficiency at the cost of multiple access schemes with low spectral efficiency,which hinders its large-scale *** this paper,we propose a new non-orthogonal multiple access backscatter(NOMA-Backscatter)system to meet high spectral-efficiency *** implement the NOMA-Backscatter system for the first time with resource-constrained low-cost and low-power hardware and eliminate the affects of unstable oscillators during the successive interference cancellation(SIC)demodulation process in real *** demonstrate that NOMA-Backscatter can achieve 1.38 Mbit/s throughput with 200%tag load,and the spectral efficiency is 1.73×higher than state-of-the-art backscatter systems.

关键词： backscatter communication NOMA spectral efficiency multiple access

An Empirical Application of User-Guided Program Analysis

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China Communications 2024年第7期21卷 325-333页

作者： Wang Jigang Cheng Shengyu Cao Jicheng He Meihua State Key Laboratory of Mobile Network and Mobile Multimedia Shenzhen 518055China Department of Cyberspace Security ZTE CorporationShenzhen 518057China

Although static program analysis methods are frequently employed to enhance software quality,their efficiency in commercial settings is limited by their high false positive *** EUGENE tool can effectively lower the false positive ***,in continuous integration(CI)environments,the code is always changing,and user feedback from one version of the software cannot be applied to a subsequent ***,people find it difficult to distinguish between true positives and false positives in the analytical *** this study,we developed the EUGENE-CI technique to address the CI problem and the EUGENE-rank lightweight heuristic algorithm to rate the reports of the analysis output in accordance with the likelihood that they are true *** the three projects ethereum,go-cloud,and kubernetes,we assessed our *** to the trial findings,EUGENE-CI may drastically reduce false positives while EUGENE-rank can make it much easier for users to identify the real positives among a vast number of *** paired our techniques with GoInsight~1 and discovered a *** also offered a patch to the community.

关键词： continuous integration report ranking static program analysis

Filter Design of Wireless Base Station Power Supply

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zte Communications 2024年第1期22卷 95-105页

作者： LI Wei GUO Wei WANG Zhida zte Corporation Shenzhen 518057China

The design of electromagnetic interference(EMI)filters needs to fulfill the EMI *** a filter is a time-consuming process for new engineers as well as for those experienced *** paper measures and compares the noise spectrum of the wireless base station power prototype with and without the original *** ideal insertion loss(IL)of the original filter is obtained by combining calculation and *** is pointed out that the effect of the original filter is not *** on the improved insertion-loss method,the source impedance model of the prototype is established by combining measurement and theory.A procedure for designing EMI filters for switch power supply will be *** filter design procedure makes it possible to design filters quickly and ***,the proposed filter design method is proved to be effective by the EMI measurement of the wireless base station power supply prototype.

关键词： electromagnetic compatibility common mode noise EMI filter

A Filtering Coaxial Probe for Passive Intermodulation Characterization

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zte Communications 2024年

作者： BAI Yongjiang YANG Jiye ZHU Shaohao YANG Ye YE Ming Xi'an University of Architecture and Technology zte Corporation

Passive intermodulation (PIM)， occurred in communication systems， is an unwanted interference caused by weak nonlinear current-voltage characteristics of radio frequency (RF) passive components. Characterization of PIM is important for both study of PIM mechanisms and location/suppression of PIM sources. PIM probes， made of open-ended coaxial transmission lines， have almost the same coupling strength to both carriers and PIM products， and are usually used for near-field PIM characterization. Namely， it doesn’t have any filtering capability. So， it cannot stop the carrier power from entering into PIM tester’s receiver， which may trigger active intermodulation of the receiver and degrade PIM tester’s performance. To overcome this drawback， a passive filtering coaxial probe is proposed here. Compared with existed passive coaxial PIM probes， it has stronger coupling strength for PIM products than for carriers. Thus， the probe itself can block part of the carrier power entering into PIM tester’s receiver. This advantage is helpful for improving PIM tester’s overall performance. Both theoretical analysis and experiments are conducted for demonstration. The proposed probe adds more possibility for PIM characterization.

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Connection-Free Transmission for Critical MTC

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China Communications 2024年第8期21卷 162-171页

作者： Li Zhigang Yuan Zhifeng Ma Yihua Liang Chulong zte Corporation Shenzhen 518057China State Key Laboratory of Mobile Network and Mobile Multimedia Technology Shenzhen 518055China

In this paper,a contention-based connection-free transmission scheme is proposed to meet the stringent requirements of ultra-reliability and low-latency for critical machine-type communication(cMTC).To improve reliability,we design multiple independent sparse orthogonal pilots(MISOP)to significantly reduce the probability of pilot collision to the order of 10^(−5).Besides,the advancements of massive MIMO(mMIMO)are exploited to further enhance the *** achieve low latency,connection-free slot-based one-shot transmission without retransmissions is *** the receiver side,single round of multi-user detection(MUD)without interference cancellation(IC)can reduce the processing *** imprecise synchronization between cMTC device and the gNB in connection-free transmission,e.g.,time and frequency offsets,are also *** simulation results shows that the proposed scheme can well satisfy the ambitious requirements of cMTC,and has the potential applications in supporting massive cMTC devices in 6G.

关键词： connection-free critical MTC pilot collision sparse orthogonal pilot

Unsupervised Motion Removal for Dynamic SLAM

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zte Communications 2024年

作者： CHEN Hao ZHANG Kaijiong CHEN Jun ZHANG Ziwen JIA Xia zte Corporation State Key Laboratory of Mobile Network and Mobile Multimedia Technology

We propose a dynamic simultaneous localization and mapping technology for unsupervised motion removal (UMR-SLAM)， which is a deep learning based dynamic RGBD SLAM. It is the first time that a scheme combining scene flow and deep learning SLAM is proposed to improve the accuracy of SLAM in dynamic scenes， in response to the situation where dynamic objects cause pose changes. The entire process does not require explicit object segmentation as supervisory information. We also propose a loop detection scheme that combines optical flow and feature similarity in the back-end optimization section of the SLAM system to improve the accuracy of loop detection. UMR-SLAM is rewritten based on the DROID-SLAM code architecture. Through experiments on different datasets， it has been proven that our scheme has higher pose accuracy in dynamic scenarios compared with the current advanced SLAM algorithm.

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Deadlock Detection:Background,Techniques,and Future Improvements

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zte Communications 2024年第2期22卷 71-79页

作者： LU Jiachen NIU Zhi CHEN Li DONG Luming SHEN Taoli Zhejiang University Hangzhou 310058China zte Corporation Xi’an 710114China

Deadlock detection is an essential aspect of concurrency control in parallel and distributed systems,as it ensures the efficient utilization of resources and prevents indefinite *** paper presents a comprehensive analysis of the various deadlock detection techniques,including static and dynamic *** discuss the future improvements associated with deadlock detection and provide a comparative evaluation of these techniques in terms of their accuracy,complexity,and ***,we outline potential future research directions to improve deadlock detection mechanisms and enhance system performance.

关键词： deadlock detection static analysis dynamic analysis

Enhancing Code Quality with LLM in Software Static Analysis

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zte Communications 2024年

作者： NIU Zhi DONG Luming State Key Laboratory of Mobile Network and Mobile Multimedia Technology zte Corporation

In our modern age of omnipresent and highly interconnected information technology， cybersecurity caused by software code vulnerabilities becomes ever more challenged， threatening the confidentiality， integrity， and availability of information systems during operation. To enhance software code quality， enterprises often incorporate static code analysis tools in Continuous Integration (CI) pipelines. but the side effects of high false positives and false negatives remain a challenge. The advent of LLM like ChatGPT AI model presents an opportunity to address this challenge. In this paper， we propose a method utilizing the custom-built Nebula-coder AI model for detecting and fixing code security issues in real-time during the developer’s personal build process. We construct a static code checking rule knowledge base through summarizing and classifying CWE code security problems identified by security teams and quality assurance teams. The rule knowledge base is combined with CodeFuse-processed code contexts to serve as inputs for an AI code security detection microservice， which assists in identifying code quality and security issues. If any abnormalities are detected， they are addressed by an AI code security patching microservice， which alerts the developer and requests confirmation before committing the code into the repository. Experimental results show that our approach effectively improves code quality. We developed a VSCode plugin for code alert detection and repair based on LLMs， which facilitates test shift-left and lowers the risk of software development.

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