| China is a populous,vast inland to solve large-scale population movements, and the safest, most efficient, most economical, most environmentally friendly, most reliable mode of transportation is a high-speed rail. In "12th Five-Year", the railway construction has shifted from the Ministry of Railways for the local government-led. In the next few years, Fujian Province, in addition to speed up the construction of a railway construction, also plans to start construction of railway Long Mei, Chang Quan railway, Qu Ning Railway, coastal high-speed rail, coastal cargo specifically, the the Xiu Tu Port Railway Extension in Quanzhou, Gulei Port Spur Line in Zhangzhou. To December2011, Fujian has built the opening of the Wen Fu and the Fu Xia two high-speed rail, the speed of planning are per hour250km. The emergence of high-speed rail is not only to meet the objective needs of residents travel fast, but also for the communication network quality of service lead to higher requirements to become a window to show the quality of wireless network optimization. Scene with ordinary wireless coverage, moving the vehicle’s CDMA network must meet the call of the people in the high-speed movement, the Internet needs.The paper described the key technology of the CDMA network, the signaling processes related to the high-speed motion. Conducted in-depth research of high-speed railway network structure, a unique link budget, and mobile terminals in a high-speed movement of the handoff mode. Pull away optic cable to set up the network, power optimization, the carrier resource optimization, and switching parameters to optimize,network optimization method from the five areas discussed in detail suitable for high-speed moving terminals. Network optimization is a strong practical work, studies need to go through the test of practice. This research has a strong guiding significance for the practical work, These methods with examples at the end of the article, given the practical applicationof these methods. |
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