Evolution Of Td-scdma To Td-scdma Lte Network Scheme Research And Current Network Test

Common-mode evolution is refers to the use of the equipment of the existing network of TD-SCDMA TD-LTE coverage can be achieved through software upgrades and simple engineered so as to achieve without the new site, without the new equipment, with minimal cost to the the purpose of LTE coverage. Important direction of development of TD-SCDMA and TD-LTE Telecoms operators have been actively exploring the evolution of existing network of TD-SCDMA to TD-LTE program, and equipment manufacturers in the industry have been actively cooperate with the exploration and research of the operators in the common mode of evolution and the launch of TD-SCDMA/of TD-LTE mode, field trials carried out a number of special technical innovation and scientific and technological research, and have achieved certain results in the outfield existing network.This paper first outlines the background and the present status of the development of TD-LTE analysis of TD-LTE operators and equipment manufacturers, technical issues of common concern. Then explained the basic principles of TD-SCDMA and TD-LTE, a theoretical analysis of the different systems coexist access interference, and thus provide a theoretical basis for networking program and the actual test. According to Hangzhou the present network, the papers given the solutions.The field test of the last to upgrade existing network of19sites of Hangzhou evolution of TD-LTE and the ensuing, and fully verify the possibility of the smooth evolution of existing network equipment to TD-LTE for future large-scale evolution of the existing network of TD-SCDMA to TD-LTE provides the actual deployment experience.