| 摘要 |
A system and method are disclosed, the system and method being designed for adaptively controlling multiple parameters within an RF telecommunications system to address the problem of interference while maximizing coverage and capacity. In one embodiment of the invention, there is provided a variable gain stage comprising an RF filter, amplifier and a controller responsive to a plurality of system parameters, on the base station receiver prior to or in place of the system RF front end. The system parameters of interest can include dynamic parameters such as received signal strength indication, idle channel disturbance, bit error rate, frame error rate and SINAD (signal-plus-noise-plus-distortion). The algorithm used to determine optimum gain at the receiver can also take into account a model of the traffic and dropped call rates as a function of time of day or day of week, adjacent cell site traffic and the like. In another embodiment of the invention, a variety of system parameters are measured and used to determine the optimum gain on the base station transmitter-side amplifiers. In yet another embodiment of the invention, the duration, power and frequency of interfering signals are dynamically sampled and the parameters used to adjust the filter characteristics of the base station receiver front-end filters. |
