中文摘要：

FUTURE4GTDD试验系统采用了3．5GHz频段作为载波频率，使用了宽带多输入多输出（MIMO）、正交频分复用（OFDM）等一系列关键技术，这给FUTURE4GTDD试验网的链路预算及组网分析等工作带来了挑战。文章探讨了基于3．5GHz频段的实测电波传播模型以及试验系统的射频参数的链路预算，并进一步结合MIMO系统外场实测数据进行了试验系统组网分析及网络规划工作。FUTURE4G TDD试验系统及试验网已经顺利完成并通过鉴定验收，全面达到了预期指标，试验系统支持2基站3用户的配置，支持多用户，支持移动性，提供高达100Mb／s的峰值数据速率，支持高清晰数字电视、高速数据下载、IP电话等业务。

英文摘要：

The FUTURE 4G Time Division Duplex （TDD） trial system uses 3.5 GHz carrier frequency, and several crucial technologies including broadband Multiple Input Multiple Output （MIMO） and Orthogonal Frequency Division Multiplexing （OFDM）, which challenges the link budget and networking analysis of the FUTURE 4G TDD trial network. This paper analyzes the practical 3.5 GHz based propagation model, and the link budget of Radio Frequency （RF） parameters of the trial system. Moreover, it introduces networking analysis and network planning of the trial system which combines the field test results of the MIMO system. The FUTURE 4G TDD trial system and its trial network have been accomplished with successful checkup. The trial system fulfills all the requirements with two Access Points （AP） and three Mobile Terminals （MT）, supports multi-user, mobility, a high peak rate of 100 Mb/s, High-Definition TV （HDTV）, high-speed data download, and Voice over IP （VolP） services.