Optimization of power management in a CDMA radio network

In a code division multiple access (CDMA) radio network, optimization of power management can enhance the radio link capacity and performance. When the transmit power ratio of the center cell to adjacent cells changes 6 dB, the capacity of the center cell could be enhanced by 53% for a heavily loaded cell with double traffic density of surrounding cells. The capacity of the whole cluster could increase by 8%. The pilot power percentage directly affects the system capacity and performance. The cluster capacity could increase 43% when the whole cluster pilot percentage changes from 15% to 5%. The capacity of the heavily loaded cell could increase 31% when only the high density cell pilot percentage decreases. Cell breathing is needed to balance the cell when the power and interference change. The capacity and performance of a CDMA system can also be improved by optimizing the power distribution through adjusting the antenna beamwidth and orientation to balance the traffic loading. Commercially deployed CDMA system has demonstrated that the optimization of power management can improve the network capacity and performance.