Interference on TD-SCDMA Uplink by PHS Downlink  

作　　者：Yu Liqian 1,2 Liu Huailin 2 (1. Nanjing University of Posts and Telecommunications,Nanjing 210003,China 2. Mobile Division,ZTE Corporation,Shanghai 201203,China) 

出　　处：《ZTE Communications》2007年第2期47-51,共5页中兴通讯技术（英文版）

摘　　要：In the process of mobile network planning and construction,interference problem between Time Division Synchronous Code Division Multiple Access (TD-SCDMA) and Personal Handyphone System (PHS) should be solved. First,a simulation is started on a TD-SCDMA single system platform,then the interference due to the PHS downlink on a TD-SCDMA uplink is analyzed. Finally,the space isolation is obtained. During the simulation,the TD-SCDMA system adopts an omnidirectional base station and a directional base station respectively. The two kinds of base stations are compared from the aspects of cell coverage distance and user interruption. The simulation results indicate that TD-SCDMA directional base station supports longer distance of cell coverage than omnidirectional base station. If TD-SCDMA and PHS coexist,a directional base station will require 10 dB less isolation than an omnidirectional base station.In the process of mobile network planning and construction,interference problem between Time Division Synchronous Code Division Multiple Access (TD-SCDMA) and Personal Handyphone System (PHS) should be solved. First,a simulation is started on a TD-SCDMA single system platform,then the interference due to the PHS downlink on a TD-SCDMA uplink is analyzed. Finally,the space isolation is obtained. During the simulation,the TD-SCDMA system adopts an omnidirectional base station and a directional base station respectively. The two kinds of base stations are compared from the aspects of cell coverage distance and user interruption. The simulation results indicate that TD-SCDMA directional base station supports longer distance of cell coverage than omnidirectional base station. If TD-SCDMA and PHS coexist,a directional base station will require 10 dB less isolation than an omnidirectional base station.

关 键 词：SCDMA TD PHS 

分 类 号：TN929.533[电子电信—通信与信息系统]