levelmeas is the measured cell received level (RSRP), Qrxlevelmin is the minimum required received level [dBm], and Qrxlevelminoffset is used when searching for higher-priority PLMN. Qoffset temp is only applied if the connection setup fails consec- utively multiple times. A quality-based, that is, RSRQ-based S-criterion (Squal), may also be configured by the network if deemed necessary. 7.7 The RRC Protocol Whenever the UE has camped to a cell, it will continue to find a better cell as a can- didate for reselection according to the reselection evaluation process (Section 7.7.4.2). In order to do this, the UE needs to measure neighbor cells, which are indicated in the neighbor cell list in the serving cell. The network may also ban the UE from considering some cells for reselection, which is also known as blacklisting of cells. Performing mea- surements consume UE battery, and to limit the power consumption of the UE, various rules to limit the impact have been defined (Section 7.7.4.4). 7.7.4.2 Intra-frequency and Equal-Priority Reselections The cell ranking is used to find the best cell for the UE camping in the case of intra-frequency reselection or on reselection to equal-priority frequency. The ranking is based on the criterion Rs for the serving cell and R for the neighboring cells. Rs = Qmeas, S + Qhyst - Qoffsettemp Rn = Qmeas, n - Qoffset - Qoffsettemp Where Qmeas is the RSRP measurement quantity, Qhyst is the power domain hysteresis to avoid ping-pong, and Qoffset is an offset value to control different frequency specific characteristics (e.g. propagation properties of different carrier frequencies) or cell spe- cific characteristics. Qoffset temp is only applied if the connection setup fails consecutively multiple times. In the time domain, T reselection is used to limit too frequent reselections. Reselection occurs for the best-ranked neighbor cell if it is better ranked than the serving cell for a longer time than Treselection. Qhyst provides hysteresis by requiring any neighbor cell to be better tha