8.5.85 Actions related to IMPLICIT_GRANT variable (FDD only)
25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS
The variable IMPLICIT_GRANT shall be set to TRUE only when the following conditions are met:
1> the UE is in CELL_DCH state;
1> the variable SECONDARY_CELL_E_DCH_TRANSMISSION is set to TRUE;
1> the IE "Implicit Grant handling" is included in the IE "Uplink Secondary Cell Info FDD" and is set to TRUE; or
1> the IE "Uplink Secondary Cell Info FDD" is included in received message with the CHOICE "Configuration info" set to "Continue" and the variable IMPLICIT_GRANT is set to TRUE.
If the above conditions are not met and the variable IMPLICIT_GRANT is set to TRUE, the UE shall:
1> set the variable IMPLICIT_GRANT to FALSE;
1> configure the MAC layer to stop using Implicit Grant handling on the secondary UL frequency.
If all of the above conditions are met and the variable IMPLICIT_GRANT is set to FALSE, the UE shall:
1> set the variable IMPLICIT_GRANT to TRUE;
1> configure the MAC layer to use Implicit Grant handling on the secondary UL frequency.