The Base Station receives a Pilot Signal from the Mobile station and calculates BER based on Distance,Transmission rate and No of Users in the Cell. Ptk is the transmitted signal power which is expressed by the power control function g ( rt , k ), a function of the distance from the mobile to
base station,
'''Ptk= g(rt,k)PO'''
where Po is the maximum transmission power. The optimum power functions are transmitted to the Mobile station which calculates the optimal power and starts transmitting at that value. Thus meeting the required QoS parameters.The method and algorithm for optimal power control is detailed in the IEEE paper 503476 [[Media:IEEEYao.pdf|Optimal power control law for Multi-media - Multi-rate CDMA systems
- Shee Yao and Evaggelos Geraniotis