Simulation Of R99 In WCDMA Coexist With GSM And TD-SCDMA

The WCDMA,GSM and TD-SCDMA wireless network will coexist in the 3G mobile network system. This paper introduces complete process and the details of the co-simulation for WCDMA R99 with GSM and TD-SCDMA. The main concern for the simulation of WCDMA R99 is the interference brought by GSM and TD-SCDMA, and this paper shows how to model the interference among the three wireless communication formats, also introduce the scheme of how to share power an frequency between R99 and HSPA in WCDMA.The simulation steps of R99 coexist with GSM and TD-SCDMA includes:get the simulation zone, initial NE parameters, create files of propagation loss, create neighbor cells for interference and handover, R99 access control, initialize traffic channel's power, calculate the cell's transmit power and received power,uplink power control and downlink power control, uplink and downlink convergence judge.The uplink and downlink simulation iterate at the same time in each iterative circle, the simulation goes with each iterative circle until the cell's power converge or getting to the max times of iterator. Only uplink and downlink converge at the same time, consider the wireless network is converge.