8.5.51 Actions related to SECONDARY_CELL_HS_DSCH_RECEPTION variable (FDD only)

25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS

An entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION shall be set to TRUE only when all the following conditions are met:

1> the UE is in CELL_DCH state;

1> the corresponding IE "Downlink Secondary Cell Info FDD" is included;

1> the variable HS_DSCH_RECEPTION is set to TRUE;

1> either of the following conditions are met:

2> the IE "Memory Partitioning" is set to ‘Implicit’ in the IE "HARQ Info"; or

2> the IE "Memory Partitioning" is set to ‘Explicit’ in the IE "HARQ Info" and MIMO or MIMO mode with four transmit antennas is configured on all or none of the serving HS-DSCH cell and the secondary serving HS-DSCH cells.

If any of the above conditions is not met for a secondary serving HS-DSCH cell, and the corresponding entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION is set to TRUE, the UE shall:

1> set the corresponding entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION to FALSE;

1> clear the corresponding entry in the variable DOWNLINK_SECONDARY_CELL_INFO;

1> flush the HARQ buffers of the HARQ entity associated to that secondary serving HS-DSCH cell;

1> release the HARQ resources associated to that secondary serving HS-DSCH cell.

1> determine the configuration of "TSN field extension" for MAC-ehs entity as specified in subclause 8.5.60

If there are more than one entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION set to TRUE and the corresponding entries in the variable DOWNLINK_SECONDARY_CELL_INFO indicate that the network has configured non-contiguous multi-cell operation together with dual band operation:

1> the UE behaviour is not specified.

If there is at least one entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION set to TRUE, the UE shall:

1> apply the i-th entry in the variables DOWNLINK_SECONDARY_CELL_INFO, SECONDARY_CELL_HS_DSCH_RECEPTION, SECONDARY_CELL_MIMO_STATUS and SECONDARY_CELL_MIMO_MODE_WITH_FOUR_TRANSMIT_ANTENNAS_STATUS to the i-th secondary serving HS-DSCH cell.

1> After the new configuration is applied, the UE shall renumber the configured secondary serving HS-DSCH cells, starting from 1, contiguously, by skipping empty entries in the above variables. The secondary serving HS-DSCH cells are numbered in the order their configuration IEs appears in the message. The RRC Layer shall pass the new numbering of the secondary serving HS-DSCH cells to the lower layers.

NOTE: Regardless of the renumbering, the IEs in the variable DOWNLINK_SECONDARY_CELL_INFO remain stored as specified in subclause 8.6.6.45.

1> partition the soft memory buffer in the MAC-ehs, used for the secondary serving HS-DSCH cells reception, using the information in the IE "HARQ Info" of the serving HS-DSCH cell and performing the procedure described in subclause 8.6.5.6b;

1> determine the value for the SECONDARY_CELL_E_DCH_TRANSMISSION and take the corresponding actions as described in subclause 8.5.58.

1> determine the configuration of "TSN field extension" for MAC-ehs entity as specified in subclause 8.5.60.

For each entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION which is set to TRUE, the UE shall:

1> receive the HS-SCCH(s) according to the corresponding IE "Downlink Secondary Cell Info FDD" on the serving HS-DSCH radio link applying the scrambling code as received in the corresponding IE "DL Scrambling code";

1> perform HS-DSCH reception procedures for the corresponding secondary serving HS-DSCH cell according to the stored HS-PDSCH configuration as stated in:

2> subclause 8.6.3.1b for the IE "H-RNTI";

2> subclause 8.6.5.6b for the IE "HARQ info";

2> subclause 8.6.6.34 for the IE "Measurement Feedback Info";

2> subclause 8.6.6.45 for the IE "Downlink Secondary Cell Info FDD";

1> use the relevant CQI reporting table as stated in subclause 8.5.44.

Whenever any entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION is set to FALSE, the UE shall:

1> not perform HS-SCCH reception procedures on the corresponding secondary serving HS-DSCH cell;

1> determine the value for the SECONDARY_CELL_E_DCH_TRANSMISSION and take the corresponding actions as described in subclause 8.5.58.

If any entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION is set to TRUE and the serving HS-DSCH cell was changed as a result of the received message or HS-SCCH order from the target cell, the UE shall instruct the physical layer to consider that the HS-SCCH orders from the serving cell were never received.

If prior to the reconfiguration and after the reconfiguration the i-th entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION is set to TRUE, and the value of IE "Configuration info" contained in the corresponding IE "Downlink Secondary Cell Info FDD" is set to either "Continue" or "New configuration", and the serving HS-DSCH cell was not changed as a result of the received message, the UE shall instruct the physical layer to remember the corresponding secondary serving HS-DSCH cell activation/deactivation HS-SCCH orders that were received prior to the reconfiguration.

NOTE: If any entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION is set to TRUE and the IE "Tx Diversity Mode" is set to "closed loop mode1", the UE behaviour is unspecified.

If prior to the reconfiguration the i-th entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION was set to FALSE, and after the reconfiguration the i-th entry in the variable SECONDARY_CELL_HS_DSCH_RECEPTION is set to TRUE, the UE shall instruct the physical layer to activate the corresponding serving HS-DSCH cell.

If there is an ongoing inter-frequency measurement with the compressed mode for the frequency, which is not in the same frequency band as the serving HS-DSCH cell:

1> if there is a compressed mode pattern sequence with the IE “Frequency specific compressed mode” set to TRUE in the IE "Current TGPS Status Flag" in UE variable TGPS_IDENTITY; and

1> if there is no entry in the DOWNLINK_SECONDARY_CELL_INFO variable, associated frequency of which is in the same frequency band as the frequency to measure:

2> the UE behaviour is unspecified.