unctionality has a central role in radio resource management: it controls the entry of a new user, provides the initial target values for PC and updates the load estimations for LC. AC Process Quality requirements for the radio bearer Load (power) increase estimations Admission decision Load chance report to load control functionality Radio bearer establishment Quality Requirements for the Radio Bearer The UE requests a service with a particular quality-of-service (QoS) profile. The RNC forwards the request to the CN and the allowed QoS profiles for the user are verified. There is a QoS profile stored under the HLR. If the user is allowed to be allocated such a service, the RNC uses mapping tables to derive the target BLER for the service. Parameter Planning Estimated Load increase Load factor Figure 2.45 Load versus power curve Load (Power) Increase Estimations In the wideband power based load estimations the received uplink noise is considered as the uplink load and the total transmitted power is considered as the downlink load. The AC estimates the load increase, and based on the load increase and current load it admits or denies the establishment of a new radio bearer. This is done independently in the uplink and downlink. Load Increase Uplink The load increase for the uplink is estimated using a proprietary estimation algorithm. The change in the load factor is calculated by an AC based on the new bearer Eb/ No requirement. For an increase in load there is a corresponding noise rise, which that is caused by a noncontrollable load. The noise rise is calculated using the load versus power curve, as shown in Figure 2.45. Load Increase Downlink In the downlink directions the mobile measurements can be used to calculate the required transmission power of a new radio bearer. The required power is calculated using the following formula: (2.70) where P = =Eb/No, required Eb/No of the connection Pc =Ec/10, Signal-to-interference ratio per chip of the CPICH measured by the UE W = the chip rate R = bit rate Ptx_total i