ssing gain: Processing gain gives the WCDMA system its robustness against self-interference, making it possible to reuse the 5 MHz carrier frequencies in close geographical distances. Reception in WCDMA Networks The signal received by the receiving antenna consists of direct and indirect signals. The indirect signals can be reflected from natural obstacles such as buildings, hills, towers, etc., or from the ground. Thus Radio Network Dimensioning the signal that reaches the receiving antenna after reflection will be delayed by certain time intervals (the time interval may vary depending upon the terrain it was travelling on, e.g. less delay in urban areas and more delay in hilly terrains). Also, the amplitude of these reflected signals will be different from that of the direct signal. In WCDMA, efficient reception takes place by using RAKE receivers. Any difference between two different multipath components that is more than one chip period can be resolved by this kind of receiver. The compensation of delay is accounted for by the difference in arrival times of the RAKE fingers while the RAKE combiner sums up the channel compensated symbols. Also, the shorter the duration of one chip period, the better the network is able to combat against interference due to multipath reception. RAKE receivers are different in the UE and BS, but the fundamental principle remains the same. Radio Resource Management (RRM) The Radio Resource Management (RRM) functionality controls system resources. The physical resources that limit the number of users and the services users have available are transmission power, number of hardware channel units installed, transmission capacity, code resources and number of frequencies available. The RRM allocates these resources and controls the use of them. The basic principle is to save resources and guarantee the quality of the connection for existing users, in a case of resource limitation at the expense of new incoming users. The RRM consists of power control (PC), admission control (AC), load