Evolution of Optical Transport Networks and Their Solution in 3G Networks

As new generation mobile networks, 3G networks focus on data services and integrate voice, data and multimedia services. However, traditional Optical Transport Networks (OTNs) cannot meet the requirements of 3G networks anymore, because of their complicated configuration, low bandwidth efficiency, high cost, and bad network and service scalability. The emerging of Multi-Service Transport Platform (MSTP), Wavelength Division Multiplexing (WDM), and Automatically Switched Optical Network (ASON) technologies for optical fiber communications makes up for these weaknesses. The leading solution to 3G access transport networks is the MSTP technology based on Synchronous Digital Hierarchy (SDH), while that to 3G core transport network is ASON+WDM.

Zapp Selects ZTE to Build 3G Network in Romania

ZTE, a leading global provide of telecommunications equipment and network sulutions, announced on May 29, 2008 that it has been selected by Zapp, Romania’s fourth largest mobile operator, to roll-out a WCDMA/HSDPA commercial network. This deal reinforces ZTE position in Europe. Zapp plans on launching its 3G commercial services in early autumn 2008 and the network should be completed by 2011.

Construction Control and Monitoring of Large Span Continuous Steel Arch Bridge Based on 3G Network

This paper takes the right branch main channel Bridge of Huai River Bridge in Huainan as the engineering background, uses the finite element software Midas and the ANSYS to simulate and analyze the jacking construction of the bridge, and according to the theoretical calculation, the construction monitoring plan is developed, and the stress and deformation of the key section and part of the structure are monitored. Construction monitoring combined with 3 g network and data acquisition module, monitoring data for the real time measurement, the centralized acquisition and wireless transmission, accomplish on-line real-time monitoring of the bridge construction process, effective control of jacking construction and monitoring. The comparison between theoretical analysis and measured results shows that the simulation results are reasonable, and the construction monitoring scheme based on 3G network and data collection can be used as reference.

Design of an Interconnection Architecture and Sizing of Two (2) EPC Core Networks: The Case of Orange-Guinea

With the arrival of the 4G and 5G,the telecommunications networks have experienced a large expansion of these networks.That enabled the integration of many services and adequate flow,thus enabling the operators to respond to the growing demand of users.This rapid evolution has given the operators to adapt,their methods to the new technologies that increase.This complexity becomes more important,when these networks include several technologies to access different from the heterogeneous network like in the 4G network.The dimensional new challenges tell the application and the considerable increase in demand for services and the compatibility with existing networks,the management of mobility intercellular of users and it offers a better quality of services.Thus,the proposed solution to meet these new requirements is the sizing of the EPC(Evolved Packet Core)core network to support the 5G access network.For the case of Orange Guinea,this involves setting up an architecture for interconnecting the core networks of Sonfonia and Camayenne.The objectives of our work are of two orders:(1)to propose these solutions and recommendations for the heart network EPC sizing and the deployment to be adopted;(2)supply and architectural interconnection in the heart network EPC and an existing heart network.In our work,the model of traffic in communication that we use to calculate the traffic generated with each technology has link in the network of the heart.

3G网络简化推进策略研究

3G网络简化可以腾退优质频谱资源、节能增效、提升网络性能。针对3G网络简化需要解决的问题,归纳总结国外运营商网络精简经验,为我国运营商网络简化提供参考;并以某运营商2022年底数据为例,分析3G网络覆盖情况、网络用户及业务承载情况,构筑端、网、业协同模型,评估了3G退网可行性及节奏;从网络侧和市场侧2个方面提出了相应的保障措施,推进网络简化,确保用户感知、网络覆盖不下降,顺利过渡到4G/5G网络。

Performance analysis in 3G/ad hoc integrated network

An analytical approach to evaluate the performance of the 3G/ad hoc integrated network is presented. A channel model capturing both path loss and shadowing is applied to the analysis so as to characterize power falloff vs. distance. The 3G/ad hoc integrated network scenario model is introduced briefly. Based on this model, several performances of the 3G/ ad hoc integrated network in terms of outage probability, call dropping probability and new call blocking probability are evaluated. The corresponding performance formulae are deduced in accordance with the analytical models. Meanwhile, the formula of the 3G/ad hoc integrated network capacity is deduced on the basis of the formula of the outage probability. It is observed from extensive simulation and numerical analysis that the 3G/ad hoc integrated network remarkably outperforms the 3G network with regards to the network performance. This derived evaluation approach can be applied into planning and optimization of the 3G/ad hoc network.

Efficient Peer-to-peer File Sharing in 3G Networks

In 3G networks upgraded with high speed packet access(HSPA) technology,the high access bandwidth and advanced mobile devices make it applicable to share large files among mobile users by peer-to-peer applications.To receive files as quickly as possible is essential for mobile users in file sharing applications,since they are subject to unstable signal strength and battery failures.While many researches present peer-to-peer file sharing architectures in mobile environments,few works focus on decreasing the time spent in disseminating files among users.In this paper,we present an efficient peer-to-peer file sharing design for HSPA networks called efficient file sharing(EFS) for 3G networks.EFS can decrease the dissemination time by efficiently utilizing the upstream-bandwidth of mobile nodes.It uses an adaptive rearrangement of a node's concurrent uploading transfers,which causes the count of the node's concurrent uploading transfers to lower while ensuring that the node's upstream-bandwidth can be efficiently utilized.Our simulations show that,EFS achieves much less dissemination time than other protocols including Bullet Prime and a direct implementation of BitTorrent for mobile environments.

2G/3G退网时间预测和站址影响分析

自我国进入2G、3G、4G、5G多网共存以来,2G/3G制式在技术指标、资源占用、运维成本等方面的不足逐渐凸显,运营商急需加快2G/3G退网进程,将有限的资源投入到主流的4G/5G的发展中去。提出一种基于VoLTE终端渗透率和VoLTE承载业务占比2个指标预测退网时间的方法,根据站址空间数据进行计算并分析2G/3G站址周边覆盖情况,精准定位补盲区域,为运营商做好退网规划,推动退网进程提供参考。

A Stream Control Transmission Protocol Based OAM System of 3G Cellular Network

OAM (Operations, Administration and Maintenance) system is a very impo rtant component of 3G cellular network. In order to acquire overall managemen t, fast response and steady operation, an SCTP (Stream Control Transmission Prot ocol) based OAM, i.e., SOAM system was proposed. SOAM implements new characters of SCTP such as multi-stream, enforced SACK and heartbeat mechanism on its tran sport layer. These characters help SOAM decrease the message transmission delay and accelerate the link failure detection. Besides, a new component named SOAM agent was introduced to improve the operation efficiency of SOAM. The experim ental results prove the proposed SOAM system achieves better performance on sign aling transmission compared with conventional TCP based OAM system.

Key Technologies of 3G WCDMA Network Sharing

Based on the latest research findings of 3GPP on network sharing, this paper introduces 4 solutions to WCDMA 3G network sharing: site sharing, common network sharing, geographically split network sharing, and radio access network sharing. It also analyzes the key network sharing technologies, including the lu-Flex function in Release 5, the UTRAN sharing mechanism in the connected mode in Release 5 and the mechanism of network sharing support enhancement in Release 6.

ZTE F3G SOLUTIONS GIVE YOU A FULL-SERVICE NETWORK AT A QUICK BREAK-EVEN.

When upgrading your network, you should consider ZTE F3G solutions.You get a total solution for Triple-play that increases your revenue dramatically, and you could cut your break-even time by 50%.

ZTE F3G SOLUTIONS GIVE YOU A FULL-SERVICE NETWORK AT A QUICK BREAK-EVEN.

When upgrading your network,you should consider ZTE F3G solutions.You get a total solution for Triple-play that increases your revenue dramatically,and you could cut your break-even time by 50%.

ZTE F3G SOLUTIONS GIVE YOU A FULL-SERVICE NETWORK AT A QUICK BREAK-EVEN

When upgrading your network, you should consider ZTE F3G solutions.You get a total solution tor Triple-play that increases your revenue dramatically,

Business Ecosystem Strategies of Mobile Network Operators in the 3G Era

This paper applies the perspective of business ecosystem to mobile communications industry,trying to help mobile network operators improve their strategies in the era of the third generation mobile communications(3G).According to the definition of the business ecosystem,the ecosystem structure of mobile network operators is analyzed.As an important hub in the ecosystem,mobile network operators are advised to take a keystone strategy.The key points of the strategy are summarized.Finally,suggestions for Chinese mobile network operators are given based on the analysis.

基于云计算及3G网络的健康监护系统设计

把云计算引入到健康监护系统中,充分利用云计算的优势,极大降低监护设备的设计难度和软硬件成本。以Amazon EC2弹性云服务作为Web服务器,使用B/S模式,利用3G网络的带宽和覆盖面的优势,完成多参数采集的用户监护设备,搭建具有良好扩展性的健康监护系统。系统以网站形式向用户提供服务,对用户进行分类个性化管理,并定时向监护设备推送相关健康信息。同时提出对设备的续航问题和用户隐私保护等方面的解决方案。

3G网络的移动视频监控系统

移动流媒体应用是基于3G独特高数据带宽的业务应用,是3G业务网络中最具市场潜力的增值业务类型。为了进一步推广移动流媒体技术的应用,该文将3G移动网络和固网视频监控结合起来,实现两者优势互补,提出了一种基于3G网络的移动视频监控系统模型,此模型能够弥补传统移动网络和固网的不足对移动视频监控系统的设计具有一定的指导意义。