The Research On TD-LTE Wireless Network Design

In recent years, with the rapid development of information technology, communications industry has entered the era of mobile Internet, which made anytime, anywhere access capabilities, and high-speed transmission of data of these two basic requirements, so as a representative of the LTE 4G network construction and development has become an irresistible trend, being carried out with a large-scale worldwide. Investment in the development of LTE networks can not only bring high-speed Internet experience to users to facilitate the users to access various types of information, in order to energize economic development, and can be pulled through the development of a network of downstream chip design and manufacturing, terminals, network, network equipment and other development of the industry, leveraging the new growth of related industries, while also creating new business opportunities for the operators. As one of the two standard LTE TD-LTE, is China’s independent innovation of 3G standard TD-SCDMA follow the evolution of technology, the inheritance and development of TD-SCDMA types of advanced research achievements and advantages, and to achieve the international mainstream and fusion technology, which is China’s first with the international mainstream in the development of cutting-edge technology, the design study to achieve TD-LTE network is crucial to explicitly.TD-LTE wireless network has high spectrum efficiency, power control and low demand, avoiding the respiratory effects and many other advantages, at the same time simplifying the structure of the access network, using OFDM, inter-MIMO, three core cell interference suppression technology, making Get network transmission speeds up to 100 Mbps, users perceive to experience fast access to short to achieve a seamless contiguous coverage within the target area of the network, and the use of Internet-based "best connection" access fairness, these feature ensures that TD-LTE can develop large-scale deployment. From a global perspective, the mainstream chip, terminal manufacturers are supporting the development of the network, and has more than 54 operators were actually deployed.Since December 2013 obtained a license, the world’s largest operator, China Mobile launched a rapid commercial deployment of TD-LTE network, established to achieve a wide range of network coverage nationwide goal. This raises two requirements, while leveraging existing 2G, 3G network resources, coordination and cooperation with each other to achieve three networks, 4G network carrying data, 2G network carrying traditional voice services, 3G network as an important supplement; another, the need to form an effective construction specifications, quickly complete the network construction is arranged across the country.The issue in Tianshui, Gansu Province branch of China Mobile 4G network construction as a background, summed up a set of "survey, design, simulation, deployment," the TD-LTE network construction process specifications of the actual network construction has a very important guide meaning; and basic choice of network construction, survey, test methods conducted in-depth analysis; and finally, focuses on the procedure and method of network simulation. The research has been applied to the actual network construction, the great practical significance.