Monday, March 15, 2010

D-SCDMA Wireless Network Planning Technique Research


TD-SCDMA(Time Division-Synchronous Code Division Multiple Access), is the immediate sub-Synchronous Code Division Multiple Access technology. It is our independent intellectual property rights of Chinese technical standard for communication with the European standard WCDMA, USA standard CDMA2000. They all called the 3G mobile communication standards. In March 2001, 3GPP officially accepted China's TD-SCDMA third generation mobile communication standard and included in the 3GPP release 4 (Release4).In January 2007, CMCC launched the expansion of the TD-SCDMA trial network in Beijing, Tianjin, Shanghai. Shenyang, Qinhuangdao, Guangzhou, Shenzhen, Xiamen cities. January 7.2009, the Chinese government issued official three third-generation mobile communication licenses,the approval of CMCC to increase based on the TD-SCDMA technology standard for third-generation 3G mobile communications business license, China Telecom to increase based on CDMA2000 technology standard business license of 3G, China Network Communications Group Corporatio to increase the based on the 3G standard WCDMA technology licensing business. To promote the application of the national independent innovation. CMCC accelerate the launch of TD-SCDMA network construction of the scale. In this thesis, we combined with the features of TD-SCDMA system, explore the methods of wireless network planning. Take Zhengzhou TD-SCDMA wireless network planning as an example, we expounded the methods and processes of wireless network planning, and analyzed the simulation results of the wireless network.The main objective of the thesis includes the following:1, In this thesis we introduced TD-SCDMA system technical characteristics. expounded the key technologies of its impact on network planning, compared the difference between TD-SCDMA and GSM, WCDMA network planning, pointed out when planning TD-SCDMA network that some issues we need to pay attention.2,We researched the TD-SCDMA wireless network planning methods,and described the planning objectives of the wireless network, wireless network planning principles and contents, wireless network planning process in detail.3,We taked Zhengzhou TD-SCDMA wireless network planning as our example, description of the wireless network planning methods and processes in detail,including link budget, capacity estimates,RNC set up programs and forecast the cover. And we use TPLAN network planning software,conducted a simulation analysis of wireless networks.4,At the beginning of this article we introduced the TD-SCDMA system,the development of it's history and architecture,At the end of this thesis, we introduced TD-SCDMA's future development direction(LTE).