8.5.79 Actions related to 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, the UE shall:

1> take actions related to the MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_PARAMS variable as specified in subclause 8.5.78;

1> determine the value of the MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable.

The MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable shall be set to TRUE only when all the following conditions are met:

1> The UE is in CELL_DCH state;

1> the variable HS_DSCH_RECEPTION is set to TRUE;

1> the variable 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 variable 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 MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable is set to TRUE, the UE shall:

1> set the MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable to FALSE;

1> clear the MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_PARAMS variable;

1> trigger lower layers to stop operation in MIMO mode with four transmit antennas on the serving HS-DSCH cell.

If the MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable is set to FALSE and the variable HS_DSCH_RECEPTION is set to TRUE:

1> if prior to receiving an ACTIVE SET UPDATE, CELL UPDATE CONFIRM, or any reconfiguration message, the MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable was set to TRUE:

2> if the IE "HARQ info" is not included in the received message:

3> the UE behaviour is unspecified.

If the MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable is set to TRUE:

1> if prior to receiving an ACTIVE SET UPDATE, CELL UPDATE CONFIRM, or any reconfiguration message, the MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS variable was set to FALSE:

2> if the IE "HARQ info" is not included in the received message:

3> the UE behaviour is unspecified.

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

2> if MAC-ehs is not configured:

3> the UE behaviour is undefined.