r consecutive time intervals reselection before reselection is performed. This is used to eliminate reselections if just temporary fading for the evaluated frequency occurs. In order to make reselection to a lower-priority layer, the UE will not reselect to that if the higher-priority layer is still above the threshold or if the lower-priority frequency is not above another threshold (Thresh X, low) in order to ensure that the lower-priority layer provides sufficient quality. The main parameters for controlling the idle mode mobility are shown in Table 7.3. 7.7.4.4 Cell Selection and Reselection Measurements In order to limit the need to perform reselection measurements, if the serving cell recep- tion level or quality is high enough, i.e. above the configured threshold, the UE does not need to make any intra-frequency measurements. In this way, if the serving cell is good and as the ranking is used to trigger reselection, the UE can omit neighbor cell measure- ments. Similarly, for equal-priority and lower-priority inter-frequency measurements, another threshold can be configured to omit these measurements if the serving cell is good enough. But in order to ensure that the UE camps on the highest-priority layer, the UE cannot omit measurements of higher-priority layers regardless of the serving cell quality. For cell selection in multi-beam operations, the measurement quantity of a cell is left to the UE implementation. For cell reselection in multi-beam operations, the UE derives a cell measurement quantity as the linear average of the power values of up to the maximum number of the highest beam (nrofSS-BlocksToAverage) measurement quantity values above the thresh- old (absThreshSS-BlocksConsolidation). If not a single beam is above the threshold, the UE considers the cell measurement quantity to be equal to the highest beam measure- ment quantity. 7.7.4.5 Reselection Evaluation Altered by UE Mobility If the UE moves fast, the network can adjust cell reselection parameters. The high (or medium) mobility state i