1. Foreword end of the year in sight, we look back on 2004 we can see that in this year, 3G technologies and products continues to grow one hand, the target of the increasingly urgent demands of 3G licenses. Therefore, the deployment of 3G networks and services on a global scale has been greatly increased. By the end of 2004, global 3G UMTS users has reached 16 million. Almost all major European mobile communications operators in the European market with a 3G business services. In this backdrop, France Telecom (France Telecom) mobile communications operator Orange. also in the second half of 2004 in Britain and France in the commercial market, has launched a 3G service and a broader range of coverage. This paper will present a brief introduction of the 3G network construction Telecom/Orange France, and the important experience, and gives our understanding of the future development of the mobile communications network. 2.France Telecom/Orange 3G networks and services, as a veteran of the European telecom companies. France Telecom in the fixed telephone, mobile communications, Internet access and virtual private network and other business areas have very strong strength. Among them, mobile telecommunications operator Orange is the second largest mobile telecommunications operator in Europe. In Britain, and France have the highest market share of the market. To 2004, the Orange GSM mobile phone network has covered 16 countries of the world. the total number of users exceeded 56 million. Based on this background, France Telecom/Orange development of the next generation network in the process. take a relatively pragmatic strategy. Through the process of launching 3G services in 2004, France Telecom/Orange we will be able to understand this development. UMTS network in order to better understand the actual performance, and accumulated operating experience, a potential problem. Telecom/Orange France in the spring of 2004 began in a number of cities in France known as "UMTS pilot cities" (Villes Pilotes UMTS) commercial pilot project. In this project, wireless network equipment from different suppliers and core network equipment has been deployed in the Lille. France and Toulouse, Cannes and other major cities, to more than 5,000 users who experiment with a pre-business services. its operations include a video phone, Web browsing, video news, online games, cell phone, television, instant messaging and so on. Meanwhile, France Telecom/Orange also established a new center for the development of 3G (3G Developer Center). The amount of business developers to provide an open, close to the actual network environment. 3G development and testing for the new business, in order to promote the development and application of 3G new business. July 19, 2004, Orange launched the first 3G commercial service in the United Kingdom. initial coverage of the British and 66% of the population and almost all the major cities. This situation is still not ideal for 3G terminals. Orange first launched against business users of mobile data cards Office (3G Mobile Office Card) to business users with high-speed mobile data access services. Meanwhile, in order to test mobile phones and network performance, identify potential problems, to test more than 2,000 mobile phone users with a pre-commercial service. Markets in France, beginning September 6 in Orange also provide similar data card service business. December 9, 2004, Britain and France after the large market test In both France Telecom/Orange formal launching of the 3G mobile phone market business services. Among them, 70% of the UK population covered by the market, the French market. cover all cities with populations over 200,000 and 64% of the urban population of over 100,000. The market for commercial terminals from LG, Sanyo, Samsung, Nokia and Sony Ericsson. To meet the needs of different user needs, Orange were to ordinary business users and consumers with a wide range fee program. Meanwhile, through Orange World users of this platform to provide the value-added data services. As of December 31, 2004, in less than a month's time. Orange 3G users had reached 16,500. In the year 2005, to further expand the coverage and the number of users of mobile data services. France Telecom/Orange expansion of the 3G network and will further optimize the one hand, Meanwhile in France in 2005, the market started to deploy EDGE network EDGE as a supplement to the 3G UMTS network to provide high-speed data services in rural and remote markets. 2005, and EGDE based on the UMTS mobile high-speed data network will cover 85% of the French population. To 2006, Orange 3G users in France is expected to reach two million. Meanwhile, Telecom/Orange in France, Belgium and Switzerland will launch 3G services market. Romania and Slovakia and in the deployment of EDGE network to provide high-speed data market. And business services through the deployment of 3G networks, the launch of France Telecom access to a lot of valuable experience. Next, we will make a brief presentation of these revelations and experience. 3.3G France Telecom/Orange through the deployment of the 3G network construction experience, The other major European mobile communication operators to combine the experience, we can draw some useful lessons. Attention test attention to the existing 2G and 3G technologies accumulated in the relations can be described as a revolutionary system combined with inheritance. New air interface technology, a complex network and terminal equipment to enable the deployment of 3G network vastly more difficult. This requires operators to provide business services as much as possible before the accumulation of experience, discover problems. Massive network testing is the only way to achieve this goal. Orange found a large-scale network systems and terminals to test the potential problems, Optimization of network quality has provided great help. Separately, as cellular mobile communication systems, 2G and 3G systems still have some common features. Therefore, the accumulation of full deployment of 3G networks will be able to provide tremendous support. As a traditional telecommunications operators, France Telecom has a huge research and development center (FTR&D). Currently, the R & D staff have FTR&D over 4000. In the area of mobile communications, FTR&D has accumulated more than 10 years of research, Whether technical or network planning is the key and there is a lot of research results. These research results and the resulting algorithm tool for conducting business with the deployment of 3G networks have provided vital technical support. For example, FTR&D in wireless network planning, The large number of research results and optimization software tools for the deployment and optimization of 3G network to provide direct assistance. Use features, advantages, as a play with the fixed network operators. Mobile networks and the Internet business in the telecommunications operator. France Telecom will launch 3G service in the process, take full advantage of their superiority in the operation of their business. For example, there has been a video phone system has been regarded as a symbol of 3G business. To further expand the scope of the application of visual telephony, improve user acceptance of this business. France Telecom/Orange completed the 3G video phone and fixed telephone networks and the Internet visual integration. Orange mobile phone users are free to the fixed network video phone with MaLigne visio Wanadoo visio Internet video phone users and users of video calls. Meanwhile, Orange has developed a video message and other operational characteristics. These measures contribute to the promotion of business and promote user acceptance and use of new business. After 10 years of network quality essential to the continuous improvement of the quality of service 2G network has been close to perfection. Accustomed to the almost ubiquitous in the 2G network coverage and reliable network quality, mobile users to 3G networks will require a similar or higher. Moreover, the system itself or whether 3G network planning, optimization technology, there are still numerous problems. how to reduce the gap between the two. network operating costs and service quality and to seek an effective balance between all 3G operators need to face. At present, the major users of 3G data services for business users, but 3G network coverage is still limited. Therefore, the availability of a reliable system to improve indoor coverage and switching between re-election and will greatly influence the use of experience. To improve indoor coverage, operators must balance the cost and quality of services. 3G/2G system and the re-election and switching involves the adjustment of parameters and standards to the continuous improvement. Meanwhile, accurate and efficient algorithm for rational planning tool for network, and enhance the quality of the network would be a great help. Based on years of accumulation, FTR&D designed for the 3G network to provide automatic, automatic optimization of propagation prediction. network simulation tool for a variety of algorithms. These tools are optimized for the 3G network deployment, and provide a huge support. The terminal is operational bottlenecks with the continuous development of mobile communications industry. regardless of the physical layer technology is the key to the application layer and the value-added business of terminal equipment are made increasing demands. And the terminal has lagged behind in the development of high technologies and market demand. On the 3G system, as early as two years ago. Based on the R99 version of UMTS network equipment was basically sound and stable, but not until 2004. began massive deployment of the 3G network, which is the main reason for the imperfections of terminal equipment. Today, the stability of terminal equipment, supply and pricing constraints 3G business promotion is still a major factor. Some data shows that the number of terminal equipment problems caused by the disconnection more than 50% of the total number of disconnection. This shows that the quality of service and user terminal equipment to experience significant impact. To ensure the quality of terminal, improved user experience, France Telecom/Orange spent a large amount of energy to the terminal available for a large-scale test. Only through the terminal equipment of all candidates for the test is likely to be put on the market. Thus, while the end result may be relatively slow to enter the market, but to ensure the quality of service and enhance system performance. 4. As for the future development in the deployment of 3G networks, the launch After 3G technology on the international telecommunications industry to discuss the increasingly warm. Beyond 3G, supper concepts have come out of 3G, Wi-Fi, WiMax wireless broadband access technology for 3G business constitutes a certain impact and challenges. Confronted with this situation, could not avoid the traditional telecommunications operators, only to meet the challenges and are well prepared. As for the future of wireless networks, France Telecom and the other principal members of the European telecom industry in the same perspective, that the future of wireless networks will coexist in a variety of wireless access network technology, This would be a GSM/GPRS, UMTS and other traditional cellular technology, there will be WiFi. WiMax wireless broadband technology, but also a new air interface technology of the future. As telecommunications operators. Our biggest goal is always to provide users with the best possible connection (Always Best Connected). To achieve this goal, the telecommunications operators must be able to coexist in a wide range of wireless access technology coordination with the work. So, how to achieve a variety of wireless access technology cooperation and mutual development. France Telecom R & D center has become a priority. To achieve this goal the harmonious coexistence of multiple access technology. System capacity can be re-allocation (reconfigurability) will be an important factor. In the wireless communications system to introduce more software components. Software defined radio (Software Defined Radio. SDR) will be the key to improving the distribution system can be important. Therefore, the EU has funded a number of research projects, such as : E2R (End-to-End QCMIS), to study the theory and implementation of SDR. France Telecom R & D centers have been actively involved in these projects. We hope that through these activities will be able to find a way to a future mobile communication network development, We will always provide the best for the user to achieve the goal of connecting. 5. Group 1985 as Europe's leading telecommunications operator, France Telecom operators in the area of mobile communications is a lot of accumulated experience and technology. We have and will continue to make the development of the whole mobile phone industry's contribution. As France Telecom R & D center overseas laboratories, France Telecom Mobile Communications, a research and development center in the direction of the research areas covered by end-to-system 2.5G,3G to B3G from various technical fields. We hope to engage more in-depth with the exchanges and cooperation and jointly promote the 3G mobile communication industries.
参考资料:http://searchdatabase.techtarget.com.cn/93/1899093.shtml