8.5.86 Actions related to reception of a HS-SCCH order for TTI switching (FDD only)

25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS

If the UE receives a TTI switch HS-SCCH Order, the UE shall:

1> if the variable SECONDARY_CELL_E_DCH_TRANSMISSION is not set to TRUE:

2> calculate the activation time T, by adding the value of the IE "Activation delay" in the variable OTHER_TTI_EDCH_CONFIGURATION to the CFN as specified in [29].

1> else:

2> if the HS-SCCH order indicates only TTI change on secondary uplink frequency:

3> calculate the activation time T, by adding the value of the IE "Activation delay" in the variable OTHER_TTI_EDCH_CONFIGURATION_ON_SECONDARY_UL_FREQUENCY to the CFN as specified in [29].

2> else:

3> calculate the activation time T, by adding the value of the IE "Activation delay" in the variable OTHER_TTI_EDCH_CONFIGURATION to the CFN as specified in [29].

1> at the activation time T:

2> if the variable SECONDARY_CELL_E_DCH_TRANSMISSION is not set to TRUE:

3> if the current configured TTI length is 2ms TTI:

4> release the physical channel configuration for 2ms TTI which was present before T;

4> apply the physical channel configuration for 10ms TTI as specified for the information elements in the IE "10ms TTI Configuration Information" in the variable OTHER_TTI_EDCH_CONFIGURATION, respecting the requirement in [29].

3> else:

4> release the physical channel configuration for 10ms TTI, which was present before T;

4> apply the physical channel configuration for 2ms TTI as specified for the information elements in the IE "2ms TTI Configuration Information" in the variable OTHER_TTI_EDCH_CONFIGURATION, respecting the requirement in [29].

2> else:

3> if the value indicated by the HS-SCCH order is different than the current value on an uplink frequency:

4> release the physical channel configuration on that frequency;

4> apply the physical channel configuration as specified for the information elements in the variable OTHER_TTI_EDCH_CONFIGURATION or OTHER_TTI_EDCH_CONFIGURATION_ON_SECONDARY_UL_FREQUENCY.

2> set the variable ORDERED_RECONFIGURATION to FALSE.