Research Of Shenyang Mobile TD-SCDMA Wireless Network Programming

The history of mobile communication can be traced back to the 1980s. 1992 The first digital cellular mobile communication system GSM (Global System for Mobile Communications) global system for mobile communications network in Europe roll-out because of its superior performance, in the global context by rapid development. Along with technological development, people introduced packet-switched technology into the traditional GSM network, data transmission speed in mobile communications network have been rapidly improved. This is 2.5 G. HSCSD, GPRS, EDGE, IS-95B, and other technologies are 2.5 G technology.The birth of the 3G mobile communication systems will be able to handle images, music, streaming video and other multimedia content, including Web browsing, conference calling, e-commerce, and other information services. TD-SCDMA (Time Division-Synchronous Code division Multiple Access, Time Division Synchronous CDMA technology) is China's third generation mobile communication standards, will soon start business in China, do a good job early in the TD-SCDMA wireless network planning has a very important immediate and practical significance.Network planning must be to achieve the greatest degree of wireless coverage, reducing the maximum interference, the required quality of service, set up a wireless optimization parameters, the biggest play system service quality, and to meet the capacity and quality of services premise, minimize equipment modules, and reduce their costs.TD-SCDMA wireless network planning ideas should adhere to the principle of the scale of development, give full consideration to long-term planning and increase the user capacity of the characteristics of phased, with hot spots, focusing on coverage areas, a network-wide planning, staging, and continuously adjust strategy.TD-SCDMA network planning guidelines include: cover planning, capacity planning, wireless planning parameters (including: frequency planning, scrambling code planning, neighborly cell Planning, etc.). In the course of this paper study, the authors viewed with a great deal of the 3G technical standards and development trends, business support and development, network planning and pilot testing results of the technical information, and gradually understanding of TD-SCDMA principle, the key technology, network technology features, determining Xinmin urban TD-SCDMA wireless network early planning of the coverage goals, objectives capacity, combined with the analysis of the characteristics of the network initial planning, through the link budget method, and formed a Xinmin Urban TD-SCDMA wireless network early pre-construction planning programmes.For Shenyang mobile Xinmin region the initial planning mobile coverage identified as:1.Full deployment in the City of TD-SCDMA wireless networks;2.Operational needs of large enterprises Liaohe oilfield plant, Hu Tai Xin Cheng Development Zone, the 4-A Sannong museum park area.3. In urban areas outside the suburbs and rural areas, mainly through the GSM / GPRS / EDGE network to provide services;4.TD-SCDMA network coverage area edge had better be setted up in mobile communications traffic smaller areas;5.in the early network construction outdoor macro base stations used for general building indoor coverage. After the opening of the network, there are indeed indoor distribution needs, consider using indoor distribution system to solve.Estimates to the end of 2008, the number of Xinmin 3G urban equivalent voice customers is 11,890,to meet Xinmin urban telephone traffic needs 15 base stations, to meet Xinmin urban 12 square km coverage needs 9 base stations, we select which is the larger, Xinmin urban needs 15 base stations. Three hot-spot areas needs one new base station respectively. So total 18 base stations. Using the same site planning strategies, pre-planning 18 TD-SCDMA base stations and GSM base station are in the same site, the initial pre-planning same site rate was 100 percent.For the TD-SCDMA wireless network in our country there is no business experience, only in the actual operation of the network constantly summing up experience, we can do better network planning, really achieve coverage, capacity and quality of organic integration, lower construction costs Objective.