The Interference from Downlink of PHS System on Uplink of TD-SCDMA System

It is necessary to solve the interference problem between Time Division Synchronous Code Division Multiple Access (TD-SCDMA) and Personal Handy-phone System (PHS) during the process of planning and building a mobile network. The space isolation required between TD-SCDMA and PHS can be obtained by analyzing the interference from the PHS downlink on the TD-SCDMA uplink based on the emulation for a single TD-SCDMA system. In the TD-SCDMA system emulation, the omni-directional and direction-orientd base stations are used and a comparision is made betweem them in terms of coverage distance and interruption of user traffic. The results show that the directon-oriented base station has a longer coverage distance and a 10 dB decrease in isolation.