Cell Selection ProcedureWhen the UE has information on the carrier frequencies of the PLMN previously"stored on the USIM, it may use the stored information cell selection procedure.""The UE may optionally have other information, such as primary scrambling code"group or the neighboring cells list stored on the USIM before UE switch-off orbefore leaving a coverage area. This information ensures the simplification of thecell search procedure and speeds up the search for a suitable cell. After"synchronization, the UE reads system information on the BCCH. If all""requirements for a suitable cell are fulfilled, the UE selects that cell and tries to"register.If the UE does not find a suitable cell in the PLMN on which it was previously"registered, and it has already used the stored information cell selection procedure,"the initial cell selection procedure is started. This procedure does not requireknowledge of radio frequency channels in the WCDMA band. The UE scans all"WCDMA radio frequency channels to find a suitable cell. On each carrier, the""UE searches for the cell with the highest signal level, according to the cell search""procedure, and read the system information on the BCCH."One of the requirements for a suitable cell is that it fulfills cell selection criteria.The UE bases its evaluation on two quantities: Squal and Srxlev. The cellselection criteria are illustrated in Figure 2-9 below.S>0 S>0 S>0S>0 S>0 S>0 S>0S>0S>0S>0S>0 S>0S>0 S>0S>0Squal = Qqualmeas- qQualMin > 0 (for WCDMA only)Srxlev = Qrxlevmeas qRxLevMin Pcompensation* >0*Pcompensation = max(maxTxPowerUl P;0)Measured Ec/No Parameter (-20 to 0) default =-18 dBmeasured RSCP Parameter (-115 to -25) default =-115 dBmParameter (-50 to 33) default = 24dBm"UE Power: 21, 24, 27, or 33"dBmS-criteriaS>0 S>0 S>0S>0 S>0 S>0 S>0S>0S>0S>0S>0 S>0S>0 S>0S>0Squal = Qqualmeas- qQualMin > 0 (for WCDMA only)Srxlev = Qrxlevmeas qRxLevMin Pcompensation* >0*Pcompensation = max(maxTxPowerUl P;0)Measured Ec/No Parameter (-20 to 0) default =-18 dBmeasured RSCP Parameter (-115 to -25) default =-115 dBmParameter (-50 to 33) default = 24dBm"UE Power: 21, 24, 27, or 33"dBmS-criteriaFigure 2-9: Cell Selection (S-Criteria)The details of the parameters shown in Figure 2-9 above are given below.? qQualmin is sent in the broadcast information (SIB 3 for serving cell and SIB 11 for adjacent cells) and indicates the minimum required"quality value. The UE measures the received quality, Qqualmeas; on the CPICH (CPICH Ec/No) and calculates Squal. This is only done for WCDMA cells."WCDMA W14 Radio Network Functionality- 90 - Ericsson AB 2014 LZT1381422 R1A? qRxLevMin is also sent in the system information (SIB 3 for serving cell and in SIB 11 for adjacent cells) and indicates the minimum required signal strength. The UE measures the received signal Code Power (CPICH RSCP) and obtains Srxlev? maxTxPowerul is the maximum transmission power during random access on the RACH and that value is also sent in the system information (SIB 3).? P is the UE maximum output power according to its class: (Power Class 1 = 33 dBm) (Power Class 2 = 27 dBm) (Power Class 3 = 24 dBm) (Power Class 4 = 21 dBm)Figure 2-10 below shows an example of the WCDMA Cell selection parametersSlide title in TEMS investigation.44 ptText and bullet level 1minimum 24 ptBullets level 2-5minimum 20 ptCharacters for Embedded font:"!""#$%&'()*+,-"./0123456789:;?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????fifl????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????Do not add objects ortext in the footer area Ericsson AB 2014 | WCDMA RAN Idle Mode Functionality | LZU1089757 R1A | Figure 2-11WCDMA cell SelectionParamete