有关全球技术市场的留学生assignment怎么写？看范

快速发展的全球技术市场   面对着今天的挑战以及全球技术市场的快速增长,通信网络的结构和活动转变成了一个聚合网络的基础结构。这个基础设施以信息为基础，包括交换技术、政策基本控制和交叉平台即平台独立。这样的网络平台的目的是建设一个特别的后继的服务质量(QOS)，达成用户想要访问所有服务的要求,减少网络提供者的相关网络运营成本、管理维护，支持所有类型的访问技术,应用程序和服务。建立这样的系统，IMS(IP多媒体子系统) 在设计一个聚合所有这些服务和网络基础设施中扮演着重要的角色，它被认为是下一代蜂窝移动通信技术(NGN)。
  由于技术的融合,在未来，他们将需要一个应用程序,可以汇集服务和第三方服务提供商，提供下一代网络(NGN)——蜂窝移动网络运营商提供的网络。网络运营商、第三方服务提供者商将使用这个应用程序添加他们的服务，并且订阅者可以搜索那些他们想认购的服务。

Rapidly growing technological global market   In today’s challenging and rapidly growing technological global market, the behavier and structure of communication networks are changing into a single converged network infrastructure. This infrastructure is based on packet switch technology, policy based control, and cross platform i.e. platform independent. The aim of such network paltform is a particular quality of service (QOS) and access to all services the subscribers wants, and for Network provider’s reduction in the cost related to network operations, management and maintenance and support for all types of access technologies, applications, and services. To built such system IMS (IP multimedia Subsystem) plays a vital role in designing a single converged network infrastructure for all these services and is consider as the Next Generation cellular mobile Technology (NGN).   Due to the technologies convergence, in the future their will be a need of an application program which can bring together services offers in the Next Generation Network (NGN) cellular mobile network by the Network operators, and 3rd party service providers. The network operators, 3rd party service providers will use this application to add their services and the subscribers will use to search service they want to subscribe for.   AIM OF THE PROJECT:   The aim of this project is to develop a unified repository system of services offers in the IMS-Enabled cellular mobile NGN networks. This repository system will provides a searching facility to the subscriber looking for different services and will allow network operators and 3rd party services providers to add i.e. Register their services. The reason is in the future there will be a need of such system due to the revolutionary technology IMS a converged network platform.   PROJECT OBJECTIVES:   The title of this project is “Classification of services offered in IMS-based cellular NGN”, which will focus on the following areas:   Background study of IMS-Enable cellular mobile NGN.   Identification and Classification of services offered in cellular mobile NGN.   Proposed Repository system architecture.   Repository system implementation.   This project is based on the same approach used in IMS-based networks i.e. Converged solution. I hope this project will be useful addition in IMS-based cellular mobile future technologies and will help network operators, 3rd party service providers and subscribers to benefits from this system. For this purpose, I studied in depth IMS-based NGN cellular mobile technology, need of technology, services offered, facilities and benefits. The following diagram describes overview of the overall project   Background study IMS-Based cellular mobile NGN   Services identification and classification cellular mobile NGN   Proposed repository system architecture NGN services   Implementation of the proposed repository system   Figure 1-1: overview of the overall project   PROJECT SCOPE:   This project is a general unified repository system of services such as messaging, voice, video, IPTV, news, general information etc. this system will be helpful for Network operators, 3rd party services providers and the subscribers linked with mobile communication sector.   Literature Review   The Future of mobile network operators is changing due to technological convergence. This is because of some regulatory changes, competition with other operators and fast growing markets. As number of mobile users increasing, per user average income from voice services is decreasing. To cope with this, service providers are trying for long-term and effective income sources. For this purpose they need to quickly develop and launch cost effective new services to keep their existing customers as well as attract new. For Network operators multimedia services are found to be the most attractive source. To provide these services IP-based packet switched technology can be implemented over existing infrastructure for services delivery, which can boost capital expenses and will reduce new services operation cost. For subscriber this will provide high mobility, high quality voice and data services etc, (Motorola, 2005)[1].   In IP-based network presence-enabled services such as instant messaging and video sharing etc, is a trend towards new rising communication tradition. Sharing everyday life activities using any type of devices at any place and any time has changed communication behaviour. For such communication tradition to provide telephony, SMS and MMS etc service to end users, the most important and essential telecom sector support is a global interconnection platform. The success of any new service in the growing markets will require interoperability between different service providers, different networks infrastructures and devices with some global standards. The network operators can take advantage from this tradition, if their infrastructure is built on this successful business Model, (Ericsson, 2007)[3].   Customers are demanding for easy access and use of high level of intelligent services in today “always-on” world for personalise usage, which are not restricted to a specific place, technology and device. A converged multimedia and entertainment technology fulfils user’s demands for these services delivery across all types of access media, technologies and devices transparently, (Nortel Networks, 2006) [2].   IP-based mobile devices with large terminals, high quality display unit, built in camera and other extras resources using different types of high-level applications, and have always-on i.e. connected mode, introducing a completely new communication concept. The most interesting aspect of the next generation technologies is peer-to-peer link between end users to allow them share application experiences such as browsing, video conferencing, push to talk, gaming etc, over IP-based infrastructure, (Poikselka et al, 2004)   Achieving business goal is very hard in unstable emerging mobile markets, particularly a tight competition with new players joining market, offers attractive services on lower price. To stay in the market, Telco can convert to all- IP platforms, which will allow them to deliver stylish, powerful and attractive services to end users. The most interesting and powerful aspect is they can deliver all their existing services such as voice etc and new services as well, (Nokia Siemens Networks, 2009)[4].   From the discussion in the this section we can conclude that a revolutionary technology named IMS (IP Multimedia Subsystem) is considered as a backbone for next generation communication network, because of its converged infrastructure, which is not restricted to a specific network technology, place, device, software, services, network operator and 3rd party services provider etc. The next section contains a precise description of the technology.   IMS (IP MULTIMEDIA SUBSYSTEM):   IMS is a common control network architecture providing access to all services apart from type of media used. It means that different services such as voice, messaging, video, data or any combination is delivered over a single common control plane. Furthermore new services can be delivered without changing common control plane, because everything is controlled by a single common session control protocol SIP (Session Initiation Protocol). This one common control network architecture eliminates the needs of using vendors, operators and 3rd party proprietary based equipments, protocols and applications etc, (Russell, 2008).   According Ericsson (2007), IMS is a converge network architecture combines the best of both telecom industry and the Internet, by implementing quality of service and interpretability of the telecom sector using fast development process of Internet applications. As a single common core and organized infrastructure, IMS can deliver any type of services such as voice, video, or any other combination using standard rules to an IP-based fixed, mobile and cable users. IMS is IP-based core network infrastructure connected to any types of access networks such as GSM, UMTS, CDMA, WiMax etc, provides a converged network services to wireline, cable and wireless end users, (AudioCodes, 2006). Nokia Siemens Network (2009), describe IMS is IP-based long-term future network architecture, which is based on open standard interfaces, interoperability between different vendors and platforms.