WCDMA PARAMETERS USED IN CHANGEOF REQUEST (CR) PURPOSE: To get familiar with the parameters being used by TMC engineers every day while creating CR. A good document for new engineers who joins the RF tuning team. WCDMA technology has a large number of parameters. This object contains the parameters’ definition and their commonly used values. However. . Engineers will be able to refer quickly to the definitions of the parameters which they use in every day work. this object covers a few very important parameters. Triggered Events. Parameters for Triggered Event. Cell selection/reselection parameters. .INDEX Type of layer management. WCDMA parameters and their default values used in CR. HHO_IR_C ( Hard Handover IRAT core ) : Used for IRAT handover at core locations as needed. HHO_IF_B ( Hard Handover inter frequency border ) : Used for inter freq handover at border locations as needed. HHO_IF_C ( Hard Handover inter frequency core) : Used for inter freq handover at core locations as needed.Types of Layer management SHO_C ( Soft Handover core): Used for intra frequency handover for pre launch purposes. . Used when cells are needed for soft(er) handover. HHO_IR_B ( Hard Handover IRAT border ) : Used for IRAT handover at border locations as needed. Unit is dB. If Squal <= sIntraSearch .CELL SELECTION/RESELECTION PARAMETERS: 5. UE does not need to perform inter-frequency measurements. If the value for sInterSearch is not sent for the serving cell. the UE performs inter-frequency measurements. If Squal > sInterSearch . UE does not need to perform intra-frequency measurements. The decision is made in relation to Squal. If Squal <= sInterSearch . sIntraSearch : The decision on when measurement on intra frequency measurement shall be performed. 6. the UE performs intra-frequency measurements. UE performs inter-frequency measurements. If the value for sIntraSearch is not sent for the serving cell. See the table below for the default set value for different scenarios. See the table below for the default set value for different scenarios. The decision is made in relation to Squal. UE performs intra-frequency measurements. Unit is dB. If Squal > sIntraSearch . sInterSearch : The decision on when measurement on inter frequency measurement shall be performed. . The mobile will reselect a suitable WCDMA cell if the following cell resection criteria are fulfilled: CPICH Ec/No > FDDQMIN – FDDQMINOFF CPICH RSCP > RLA + FDDQOFF CPICH RSCP > FDDRSCPMIN – min((P-21 dBm).FDDQMIN : The algorithm for cell resection from GSM back to WCDMA is controlled with the parameter FDDQMIN and FDDQOFF. UE doesn’t need to perform measurement on GSM cells. The decision is made in relation to Squal and sHcsRat parameters. If Squal > sRatSearch and Srxlev > sHcsRat . The parameter FDDMIN defines the minimum quality of a WCDMA cell for cell reselection . sRatSearch : The decision on when measurements on GSM freq shall be performed is made using sRatSearch. Where P is the maximum RF output power of the UE in WCDMA. measured in CPICH Ec/No. . UE needs to perform measurement on GSM cells.CELL SELECTION/RESELECTION PARAMETERS: 7. If Squal <= sRatSearch and/or Srxlev <= sHcsRat . 8.3 dBm) Where FDQMINOFF can be used to make the requirement of signal quality less attractive for mobiles that support the signal strength criterion. WCDMA PARAMETERS AND THEIR DEFAULT VALUES USED IN CR: .