8.5.80 Actions related to SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable (FDD only)

25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS

If the UE receives an ACTIVE SET UPDATE, CELL UPDATE CONFIRM, or any reconfiguration message which includes the IE "Downlink secondary cell info FDD" for any of the secondary serving HS-DSCH cells, the UE shall:

1> if the IE "Secondary cell MIMO mode with four transmit antennas parameters" is not included in the IE "Downlink secondary cell info FDD":

2> clear the corresponding entry in the SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_PARAMS variable.

1> if the CHOICE "Configuration Info" in the IE "Secondary cell MIMO mode with four transmit antennas parameters" has the value "Continue":

2> continue using the stored parameters in the corresponding entry in the SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_PARAMS variable.

1> otherwise:

2> if the IE "MIMO mode with four transmit antennas N_cqi_typeA/M_cqi ratio" is included:

3> store the value of the IE "MIMO mode with four transmit antennas N_cqi_typeA/M_cqi ratio" in the corresponding entry in the SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_PARAMS variable.

2> if the IE "MIMO mode with four transmit antennas pilot configuration" is included:

3> store the value of the IE "MIMO mode with four transmit antennas pilot configuration" in the corresponding entry in the SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_PARAMS variable.

1> determine the value of the SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable for the corresponding secondary serving HS-DSCH cell.

The SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable shall be set to TRUE for a secondary serving HS-DSCH cell only when all the following conditions are met:

1> the UE is in CELL_DCH state;

1> the corresponding entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION is set to TRUE for that secondary serving HS-DSCH cell;

1> the corresponding entry in the variable SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_PARAMS contains a value for the IE "MIMO mode with four transmit antennas N_cqi_typeA/M_cqi ratio"; and

1> the corresponding entry in the variable SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_PARAMS contains a value for the IE "MIMO mode with four transmit antennas pilot configuration".

If any of the above conditions is not met and the SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable is set to TRUE for that secondary serving HS-DSCH cell, the UE shall:

1> set the entry in the SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable corresponding to that secondary serving HS-DSCH cell to FALSE;

1> clear the entry in the SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_PARAMS variable corresponding to that secondary serving HS-DSCH cell;

1> trigger lower layers to stop MIMO mode with four transmit antennas operation on that secondary serving HS-DSCH cell;

1> when MIMO mode with four transmit antennas is configured:

2> if MAC-ehs is not configured:

3> the UE behaviour is undefined.

Whenever the entry in the variable SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS is set to TRUE for a secondary serving HS-DSCH cell, the UE shall:

1> if the UE supports MIMO mode with four transmit antennas only with dual stream restriction:

2> indicate to lower layers to start operation in MIMO mode with four transmit antennas restricted to dual stream transmission on that secondary serving HS-DSCH cell, using the parameter values stored in the corresponding entry in the variable SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_PARAMS.

1> else:

2> indicate to lower layers to start operation in MIMO mode with four transmit antennas on that secondary serving HS-DSCH cell, using the parameter values stored in the corresponding entry in the variable SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_PARAMS.

1> when MIMO mode with four transmit antennas only with dual stream restriction is configured:

2> if MAC-ehs is not configured:

3> the UE behaviour is undefined.