8.5.52 Actions related to TARGET_CELL_PRECONFIGURATION variable (FDD only)

25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS

When all the following conditions are met:

1> the UE is in CELL_DCH state;

1> the UE has indicated support of Target Cell Pre-Configuration; or

1> the UE has indicated support of Enhanced Serving Cell Change for Event 1c;

1> the IE "Target cell preconfiguration information" is included in the Radio link addition information in the Active Set Update message;

the UE shall:

1> in case the "Target cell preconfiguration information" IE is present for more than one radio link in the received active set update message, if the IE "Secondary E-DCH info common" is included in the IE "Target cell preconfiguration information" for this radio link, and the IE "Secondary E-DCH info common" has already been stored in the variable TARGET_CELL_PRECONFIGURATION for other radio links, the UE behaviour is unspecified;

1> if the variable TARGET_CELL_PRECONFIGURATION already contains the information for this radio link:

2> clear the old entry from the variable TARGET_CELL_PRECONFIGURATION.

1> store the "Target cell preconfiguration information" in the variable TARGET_CELL_PRECONFIGURATION so that the configurations are to be applied later once the Target cell HS-SCCH order has been read from the target cell;

1> store the configuration given in the IEs "Serving Cell Change MAC reset", "Serving Cell Change Message Type" , "Serving Cell Change Transaction Id" and "Enhanced Serving Cell Change for Event 1c Support Indicator" in the variable TARGET_CELL_PRECONFIGURATION to be applied later once the Target cell HS-SCCH order has been read from the target cell.

NOTE: If the IE "Primary CPICH info" is received in IE "Serving HS-DSCH cell information" as part of the IE "Target cell preconfiguration information" and is not the same value as the IE "Primary CPICH info" of the corresponding IE "Radio Link Addition Information" then the UE behaviour is unspecified.

If any of the above conditions is not met and the Radio Link is included in the table "Target cell preconfigurations" in the variable TARGET_CELL_PRECONFIGURATION, the UE shall:

1> clear the entry from the variable TARGET_CELL_PRECONFIGURATION.