6A.1 General procedure

25.2143GPPPhysical layer procedures (FDD)Release 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

Scheduling and transport format selection is controlled by the MAC-hs or MAC-ehs sublayer in the Node B [9].

The following parameters are signalled to the physical layer in the UE and the Node B from higher layers:

1) HS-SCCH set to be monitored in the serving HS-DSCH cell

2) Repetition factors of ACK/NACK: N_acknack_transmit and N_acknack_transmit_2. The parameter N_acknack_transmit_2 is signaled when the UE is configured in Multiflow mode as specified in [5]

3) Channel Quality Indicator (CQI) feedback cycles: CQI feedback cycle k and CQI feedback cycle2 k if HS-DPCCH overhead reduction Type 2 is configured. At any given moment in time, the used_CQI_feedback_cycle, denoted k in the subclause 6A.1.2, is set to be one of the two feedback cycles.

4) Repetition factors of CQI: N_cqi_transmit and N_cqi_transmit_2. The parameter N_cqi_transmit_2 is signalled when the UE is configured in Multiflow mode as specified in [5]

5) Measurement power offset  and ₁

6) Status of preamble/postamble transmission: HARQ_preamble_mode

7) Status of 64QAM configuration

8) Set of P-CPICH and/or S-CPICH (which shall be transmitted on the same scrambling code) that shall be used for HS-PDSCH demodulation in case the UE is configured in MIMO mode and in MIMO mode with four transmit antennas. Set of D-CPICH (which shall be transmitted on the same scrambling code as that of P-CPICH) in case the UE is configured in MIMO mode with four transmit antennas.

9) The number N of dynamic single/dual CQI reports out of a sequence of M CQI reports in case the UE is configured in MIMO mode (not applicable when single-stream restriction is configured) and in MIMO mode with four transmit antennas: N_cqi_typeA, M_cqi, respectively

10) Set of transport block sizes configured for HS-SCCH-less operation

11) Set of HS-PDSCHs configured for HS-SCCH-less operation

12) Status variables HS_SCCH_LESS_STATUS and DTX_DRX_STATUS

13) Enabling_Delay

14) RRC protocol state (CELL_DCH, CELL_FACH, CELL_PCH or URA_PCH)

15) H-RNTI values (dedicated H-RNTI, common H-RNTI, BCCH specific H-RNTI) to be monitored when the UE is configured to receive HS-DSCH in CELL_FACH or CELL_PCH state

16) HS-DSCH paging system information, which includes the following information when the UE is configured to receive HS-DSCH in URA_PCH state or in CELL_PCH state:

a) Number of PCCH transmissions: The number of subframes used to transmit PAGING TYPE 1 as defined in [5].

b) HS-PDSCH Channelisation Code configured for HS-SCCH less paging operation

c) Transport Block Size: List of Transport Block Sizes

17) Status of MIMO configuration and MIMO configuration with four transmit antennas

18) HS-SCCH set to be monitored in each secondary serving HS-DSCH cell

19) HS-SCCH set to be monitored in one non-serving cell

20) Status of ‘Support for different HS-SCCHs in contiguous TTIs’

21) HS-SCCH set to be monitored in the assisting serving HS-DSCH cell

22) HS-SCCH set to be monitored in the assisting secondary serving HS-DSCH cell

23) CQI_CYCLE_SWITCH_TIMER, which specifies the number of subframes without HS-PDSCH transmissions to the UE for the purpose of switching CQI feedback cycle to CQI feedback cycle2. This is the initial value of “CQI cycle switch timer”.

If HS_SCCH_LESS_STATUS is TRUE then HS-SCCH_less_mode=1. Otherwise HS-SCCH_less_mode=0.

HS-SCCH-less_Active shall be set to TRUE while HS-SCCH_less_mode=1 and HS-SCCH-less operation is activated. Otherwise HS-SCCH_less_Active shall be set to FALSE. HS-SCCH-less operation shall be activated at the time when HS-SCCH_less_mode is set to 1, and may be further deactivated or activated by HS-SCCH orders as specified in [2]. This ordered deactivation or activation of the HS-SCCH-less operation is applied by the UE 12 slots after the end of the HS-SCCH subframe delivering the order.

If the higher layers set DTX_DRX_STATUS to TRUE (as described in [5]) then UE_DTX_DRX_Enabled is FALSE until Enabling_Delay radio frames have passed. After the higher layers have set DTX_DRX_STATUS to TRUE (as described in [5]) and Enabling_Delay radio frames have passed then UE_DTX_DRX_Enabled is TRUE. Otherwise UE_DTX_DRX_Enabled is FALSE.

If the UE is not configured in Multiflow mode;

– If the UE is configured with at least one secondary serving HS-DSCH cell, then Secondary_Cell_Enabled is equal to the number of the configured secondary serving HS-DSCH cells, otherwise Secondary_Cell_Enabled is 0 and Secondary_Cell_Active is 0.

– Configured secondary serving HS-DSCH cells shall be activated at the time when Secondary_Cell_Enabled is changed from 0 to a value not equal to 0, or

– The activation status for configured secondary HS-DSCH cell(s) shall be set as specified in [5] when Secondary_Cell_Enabled is changed from a value n (where n is greater than 0) to a value m (where m is a value greater than 0). Configured secondary serving HS-DSCH cells may further be deactivated or activated by HS-SCCH orders as specified in [2].

– Secondary_Cell_Active shall be set to 1, 2, 3, 4, 5, 6, or 7 while Secondary_Cell_Enabled is set to a value not equal to 0, and 1, 2, 3, 4, 5, 6, or 7 secondary serving HS-DSCH cells are activated respectively; otherwise Secondary_Cell_Active shall be set to 0.

– If the UE receives an HS-SCCH order for activation of a secondary serving HS-DSCH cell that is already activated as specified in [2], then the UE shall not change the activation status of that secondary serving HS-DSCH cell, but shall transmit the HARQ-ACK acknowledging the HS-SCCH order.

If the UE is configured in Multiflow mode and with a secondary serving cell or an assisting secondary serving cell, all the configured cell(s) are initially activated, and may further be deactivated or activated using HS-SCCH orders.

– The Secondary Serving HS-DSCH cell can be deactivated with an order transmitted only by the Serving or the Secondary Serving HS-DSCH cell and reactivated with an order transmitted only by the serving HS-DSCH cell.

– The Assisting Secondary Serving HS-DSCH cell can be deactivated with an order transmitted only by the Assisting Serving or Assisting Secondary Serving HS-DSCH cell and reactivated with an order transmitted only by the Assisting Serving HS-DSCH cell.

– If the UE receives an HS-SCCH order for activation of a Secondary Serving HS-DSCH or Assisting Secondary Serving cell that is already activated as specified in [2], then the UE shall not change the activation status of that secondary serving HS-DSCH cell, but shall transmit the HARQ-ACK acknowledging the HS-SCCH order.

– If the higher layers indicate a change in the HS-DSCH cells,

– if the new configuration contains a Secondary Serving HS-DSCH cell that was either the Secondary Serving or Assisting Secondary Serving HS-DSCH cell in the earlier configuration and the cell was deactivated with HS-SCCH orders, it shall remain deactivated. Otherwise after the change the Secondary Serving HS-DSCH cell shall be active.

– if the new configuration contains an Assisting Secondary Serving HS-DSCH cell that was either the Secondary Serving or Assisting Secondary Serving HS-DSCH cell in the earlier configuration and the cell was deactivated with HS-SCCH orders, it shall remain deactivated. Otherwise after the change the Assisting Secondary Serving HS-DSCH cell shall be active.

If the UE is not configured with multiple uplink frequencies, HS-SCCH ordered deactivation or activation of the secondary serving HS-DSCH cell(s) or the Assisting Secondary Serving HS-DSCH cell is applied by the UE 12 slots after the end of the HS-SCCH subframe delivering the order, and any transient behaviour related to this change should take place before this point in time. If the activation statuses of all secondary serving HS-DSCH cells in a frequency band (as defined in [7]) remain unaffected by an HS-SCCH ordered deactivation or activation the maximum allowed interruption time for the cells in this band is 1 slot and the interrupt shall take place during the next downlink HS-SCCH slot after the end of the HS-DPCCH slot that contains the HARQ-ACK information acknowledging the HS-SCCH order. The corresponding change of the HS-DPCCH channel coding scheme as specified in [2] is applied by the UE at the first HS-DPCCH subframe boundary after the activation or deactivation has been applied.

If the UE is configured with multiple uplink frequencies, HS-SCCH ordered deactivation or activation of the secondary serving HS-DSCH cell(s) or the Assisting Secondary Serving HS-DSCH cell is applied by the UE 18 slots after the end of the HS-SCCH subframe delivering the order, and any transient behaviour related to this change should take place before this point in time. If:

– the activation statuses of all secondary serving HS-DSCH cells in a frequency band (as defined in [7]) remain unaffected by the HS-SCCH ordered deactivation or activation and the serving HS-DSCH cell is not configured in this band or

– the activation statuses of all secondary serving HS-DSCH cells and the secondary uplink frequency in a frequency band remain unaffected by the HS-SCCH ordered deactivation or activation and the serving HS-DSCH cell is configured in this band

The maximum allowed interruption time for the downlink cells and uplink frequencies configured in this frequency band is 1 slot. The interrupt shall take place during the next downlink HS-SCCH slot after the end of the HS-DPCCH slot that contains the HARQ-ACK information acknowledging the HS-SCCH order. The corresponding change of the HS-DPCCH channel coding scheme as specified in [2] is applied by the UE at the first HS-DPCCH subframe boundary after the activation or deactivation has been applied.

6A.1.1 UE procedure for receiving HS-DSCH and HS-SCCH in the CELL_DCH state

NOTE: The Node B procedure for transmitting the HS-DSCH and the HS-SCCH is specified in subclause 6A.1.3.

In this subclause, sub-frame n on the HS-SCCHs refers to the sub-frame which is associated with sub-frame n on the HS-PDSCH as defined in [1], and sub-frame n on the HS-DPCCH refers to the sub-frame which is related to sub-frame n on the HS-PDSCH as defined in [1].

If the UE did not detect consistent control information intended for this UE on any of the HS-SCCHs in the HS-SCCH set in the immediately preceding subframe n – 1, the UE shall in sub-frame n monitor all HS-SCCHs in the HS-SCCH set. The maximum size of the HS-SCCH set in the serving HS-DSCH cell is 4.

If 64QAM is not configured for the UE and ‘Support for different HS-SCCHs in contiguous TTIs’ is false, then if the UE did detect consistent control information intended for this UE in the immediately preceding subframe n – 1, it is sufficient in sub-frame n to only monitor the same HS-SCCH used in the immediately preceding subframe n – 1. If 64QAM is configured for the UE or ‘Support for different HS-SCCHs in contiguous TTIs’ is true, then if the UE did detect consistent control information intended for this UE in the immediately preceding subframe n – 1, the UE shall in sub-frame n monitor all HS-SCCHs in the HS-SCCH set. These rules apply regardless of the value of HS-SCCH_less_mode.

If Secondary_Cell_Active is not 0 and the UE is not configured in Multiflow mode,

– The UE shall simultaneously monitor an HS-SCCH set in each of the activated secondary serving HS-DSCH cells, and receive HS-DSCH if it is scheduled in that cell. The maximum size of the HS-SCCH set in a secondary serving HS-DSCH cell is 4 and the maximum number of HS-SCCHs monitored by the UE across

– both the serving HS-DSCH cell and the secondary serving HS-DSCH cell is 6 if the UE is capable of HS-DSCH reception in a maximum of 2 cells.

– the serving HS-DSCH cell, the 1^st and 2^nd secondary serving HS-DSCH cells is 9 if the UE is capable of HS-DSCH reception in a maximum of 3 cells.

– the serving HS-DSCH cell, the 1^st , 2^nd and 3^rd secondary serving HS-DSCH cells is 12 if the UE is capable of HS-DSCH reception in 4 cells.

– the serving HS-DSCH cell, the 1^st, 2^nd, 3^rd and 4^th secondary serving HS-DSCH cells is 15 if the UE is capable of HS-DSCH reception in 5 cells.

– the serving HS-DSCH cell, the 1^st, 2^nd, 3^rd, 4^th and 5^th secondary serving HS-DSCH cells is 18 if the UE is capable of HS-DSCH reception in 6 cells.

– the serving HS-DSCH cell, the 1^st, 2^nd, 3^rd, 4^th, 5^th and 6^th secondary serving HS-DSCH cells is 21 if the UE is capable of HS-DSCH reception in 7 cells.

– the serving HS-DSCH cell, the 1^st, 2^nd, 3^rd, 4^th, 5^th, 6^th and 7^th secondary serving HS-DSCH cells is 24 if the UE is capable of HS-DSCH reception in 8 cells.

– From the serving HS-DSCH cell, the UE shall be able to receive up to one HS-DSCH if MIMO mode and MIMO mode with four transmit antennas is not configured or two HS-DSCHs if MIMO mode is configured or four HS-DSCHs if MIMO mode with four transmit antennas is configured or one HS-SCCH order.

– In addition, from each of the activated secondary serving HS-DSCH cells, the UE shall be able to simultaneously receive up to one HS-DSCH if MIMO mode and MIMO mode with four transmit antennas is not configured or two HS-DSCHs if MIMO mode is configured or four HS-DSCHs if MIMO mode with four transmit antennas is configured or one HS-SCCH order.

– The maximum number of HS-SCCH orders simultaneously received by the UE across the serving HS-DSCH cell and all the activated secondary serving HS-DSCH cells is 2.

– HS-SCCH-less HS-DSCH transmission shall not be used in a secondary serving HS-DSCH cell.

– The UE behaviour is unspecified in case more than two HS-SCCH orders are received simultaneously or contradictory HS-SCCH orders (i.e. orders for activation and deactivation of the same functionality) are received from the serving HS-DSCH cell and/or any of the secondary serving HS-DSCH cells during the same subframe.

If the UE is configured in Multiflow mode

– The UE shall simultaneously monitor an HS-SCCH set in each of the activated serving, assisting serving, secondary serving and assisting secondary serving HS-DSCH cells, and receive HS-DSCH if it is scheduled in that cell. The maximum size of the HS-SCCH set in any cell is 4 and the maximum number of HS-SCCHs monitored by the UE across

– both the serving HS-DSCH cell and the assisting serving HS-DSCH cell is 6 if the UE is capable of HS-DSCH reception in a maximum of 2 cells in Multiflow mode.

– the (secondary) serving HS-DSCH cell(s) and the assisting (secondary) serving HS-DSCH cell(s) is 9 if the UE is capable of HS-DSCH reception in a maximum of 3 cells in Multiflow mode.

– the (secondary) serving HS-DSCH cell(s) and the assisting (secondary) serving HS-DSCH cell(s) is 12 if the UE is capable of HS-DSCH reception in a maximum of 4 cells in Multiflow mode.

– From the serving HS-DSCH cell, the UE shall be able to receive up to one HS-DSCH if MIMO mode is not configured or two HS-DSCHs if MIMO mode is configured or one HS-SCCH order.

– In addition, from each of the assisting serving and the activated (assisting) secondary serving HS-DSCH cell(s), the UE shall be able to simultaneously receive up to one HS-DSCH if MIMO mode is not configured or two HS-DSCHs if MIMO mode is configured or one HS-SCCH order.

– HS-SCCH-less HS-DSCH transmission shall not be used in any cell other than the serving HS-DSCH cell.

The UE can be configured to simultaneously monitor a maximum of 1 HS-SCCH in one non-serving cell. This HS-SCCH is only used for HS-SCCH orders that indicate HS-DSCH serving cell change as defined in subclause 4.6C.2.2.1 in [2]. Upon successfully receiving an HS-SCCH order that indicates HS-DSCH serving cell change from this non-serving cell, the UE shall be able to start listening to the full configured HS-SCCH set from this new serving cell and from the new secondary serving HS-DSCH cells if configured by higher layers, at the activation time configured by higher layers if the activation time is not equal to “now”, or otherwise within 40 ms from the end of the subframe in which the HS-SCCH order is received.

When the UE monitors HS-SCCHs, the UE shall only consider the control information to be consistent if either:

– the decoded ‘channelization-code-set information’ is lower than or equal to ‘maximum number of HS-DSCH codes received’ in its UE capability and the decoded ‘modulation scheme information’ is valid in terms of its UE capability,

– the decoded ‘channelization-code-set information’ and decoded ‘modulation scheme information’ correspond to an indication of an HS-SCCH order as defined in [2] subclause 4.6C.2.

Control information for one UE shall not be transmitted from the serving cell on more than one HS-SCCH in a single sub-frame.

If a UE detects that one of the monitored HS-SCCHs in sub-frame n carries consistent control information intended for this UE, the UE shall perform the following:

– If the decoded ‘channelization-code-set information’ and decoded ‘modulation scheme information’ do not correspond to an indication of an HS-SCCH order, start receiving the HS-PDSCHs indicated by this consistent control information

– If HS-DPCCH overhead reduction Type 2 and DPDCH are configured, the used_CQI _feedback_cycle is set to CQI feedback cycle, and the “CQI cycle switch timer” is reset to CQI_CYCLE_SWITCH_TIMER.

– If the CRC of the HS-SCCH is OK:

– If HS-SCCH_less_mode=1 and the TFRI value corresponds to the retransmissions of HS-SCCH-less operation, the transport block size information shall be derived from the signalled transport block size indicator as defined in [5] and [9].

– Else if UE_DTX_DRX_Enabled is TRUE or HS-SCCH_less_mode=1 or Secondary_Cell_Enabled is not 0 or UL_CLTD_Enabled is TRUE or UE is configured in MIMO mode with four transmit antennas or UE is configured in Multiflow mode or UE is configured in Enhanced TTI switching, and the ‘channelization-code-set information’ and ‘modulation scheme information’ correspond to an HS-SCCH order, the UE shall:

– if the TFRI value corresponds to an HS-SCCH order as defined in [2] subclause 4.6C.2,

– If the HS-SCCH order was sent by the serving HS-DSCH cell or by one of the secondary serving HS-DSCH cells, transmit ACK information in the slot allocated to the HARQ-ACK in the corresponding HS-DPCCH sub-frame as defined in [1] and [2];

– Process the HS-SCCH orders as described in subclauses 6A.1, 6B, 6B.3.0, 6C.4, 10.6, 11.6 and 12.5.

– else, discard the information received on this HS-SCCH.

– Else, the transport block size information shall be derived from the signalled TFRI value as defined in [9].

– If the ‘Hybrid-ARQ process information’ is not included in the set configured by upper layers, the UE shall discard the information received on this HS-SCCH and on the HS-PDSCHs.

– Else, if HS-SCCH_less_Active is TRUE, the UE may start receiving the HS-PDSCHs configured for HS-SCCH-less operation and attempt to decode the HS-DSCH bits based on the set of possible HS-DSCH transport block sizes configured for HS-SCCH-less operation. Otherwise, the UE shall discard the information received on this HS-SCCH and HS-PDSCH.

Otherwise, if the UE does not detect consistent control information intended for this UE on any of the HS-SCCHs in its HS-SCCH sets, the UE shall perform the following:

– the UE shall discard the information received on this HS-SCCH.

– if HS-SCCH_less_Active is TRUE, the UE shall start receiving the HS-PDSCHs configured for HS-SCCH-less operation and attempt to decode the HS-DSCH bits based on the set of possible HS-DSCH transport block sizes configured for HS-SCCH-less operation.

– otherwise, the UE shall discard the information received on the HS-PDSCHs.

– if HS-DPCCH overhead reduction Type 2 and DPDCH are configured, the “CQI cycle switch timer” is decremented by one. If the “CQI cycle switch timer” has expired, then the UE shall set the used_CQI_feedback_cycle to CQI feedback cycle2.

If UL_DTX_Active is TRUE (see clause 6C) and either of the following is true:

– the UE detects consistent control information intended for this UE and the TFRI value does not correspond to an HS-SCCH order, or

– the UE has successfully decoded HS-PDSCHs intended for this UE;

then, at the HS-DPCCH sub frame that contains or would contain the HARQ-ACK corresponding to the HS-SCCH or to the HS-PDSCHs that generated the priority change, the UE shall perform the following:

– set CQI_DTX_Priority to 1 and,

– reset the CQI nominal reporting timer to CQI_DTX_TIMER.

If HARQ_preamble_mode = 1 and the information received on HS-SCCH is not discarded, the UE shall:

– transmit a HARQ Preamble (PRE for HS-DPCCH slot format 0 or PRE/PRE for HS-DPCCH slot format 1) in the slot allocated to HARQ-ACK in HS-DPCCH sub-frame n – 1 (if two HS-DPCCHs are active then a HARQ preamble is sent on each of HS-DPCCH and HS-DPCCH₂), unless an ACK or NACK or any combination of ACK and NACK is to be transmitted in sub-frame n – 1 as a result of an HS-DSCH transmission earlier than sub-frame n on the HS-PDSCH, and

– if N_acknack_transmit > 1, the UE shall transmit a HARQ Preamble in the slot allocated to HARQ‑ACK in HS-DPCCH sub-frame n – 2 (if two HS-DPCCHs are active then a HARQ preamble is sent on each of HS-DPCCH and HS-DPCCH₂), unless an ACK or NACK or any combination of ACK and NACK is to be transmitted in sub-frame n – 2 as a result of an HS-DSCH transmission earlier than sub-frame n on the HS-PDSCH.

– if N_acknack_transmit _2> 1, the UE is configured in Multiflow mode and the HS-SCCH corresponds to an assisting serving or assisting secondary serving cell, then the UE shall transmit a HARQ Preamble in the slot allocated to HARQ‑ACK in HS-DPCCH sub-frame n – 2, unless an ACK or NACK or any combination of ACK and NACK is to be transmitted in sub-frame n – 2 as a result of an HS-DSCH transmission earlier than sub-frame n on the HS-PDSCH.

The UE shall transmit the ACK/NACK information received from MAC-hs or MAC-ehs in the slot allocated to the HARQ-ACK in the corresponding HS-DPCCH sub-frame as defined in [1] and [2].

When N_ acknack_transmit is greater than one, the UE shall:

– repeat the transmission of the ACK/NACK information over the next (N_ acknack_transmit-1) consecutive HS-DPCCH sub-frames, in the slots allocated to the HARQ-ACK as defined in [1] and

– not attempt to receive any HS-SCCH in HS-SCCH subframes corresponding to HS-DPCCH sub-frames in which the ACK/NACK information transmission is repeated, nor to receive or decode transport blocks from the HS-PDSCH in HS-DSCH sub-frames corresponding to HS-DPCCH sub-frames in which the ACK/NACK information transmission is repeated.

When N_ acknack_transmit_2 >1 and the UE is configured in Multiflow mode, the UE shall:

– repeat the transmission of the ACK/NACK information for the assisting serving cell and if configured the assisting secondary serving cell over the next (N_ acknack_transmit_2-1) consecutive HS-DPCCH sub-frames, in the slots allocated to the HARQ-ACK as defined in [1] and

If ACK or NACK or any combination of ACK and NACK is transmitted in HS-DPCCH sub-frame n, and HARQ_preamble_mode = 1 and UE InterTTI ≤ N_acknack_transmit, then the UE shall:

– transmit a HARQ Postamble (POST for HS-DPCCH slot format 0 or POST/POST for HS-DPCCH slot format 1) in the slot allocated to HARQ-ACK in HS-DPCCH subframe n + 2* N_acknack_transmit – 1 (if two HS-DPCCHs are active then a HARQ preamble is sent on each of HS-DPCCH and HS-DPCCH₂), unless ACK or NACK or PRE or PRE/PRE or any combination of ACK and NACK is to be transmitted in this subframe, and

– if N_acknack_transmit > 1, transmit a HARQ Postamble in the slot allocated to HARQ-ACK in HS-DPCCH subframe n + 2*N_acknack_transmit – 2 (if two HS-DPCCHs are active then a HARQ preamble is sent on each of HS-DPCCH and HS-DPCCH₂), unless an ACK or NACK or PRE or PRE/PRE or any combination of ACK and NACK is to be transmitted in this subframe.

If the UE is configured in Multiflow mode and ACK or NACK or any combination of ACK and NACK is transmitted in HS-DPCCH sub-frame n corresponding to an assisting serving or assisting secondary serving cell, and HARQ_preamble_mode = 1 and UE InterTTI ≤ N_acknack_transmit_2, then the UE shall:

– transmit a HARQ Postamble (POST/POST for HS-DPCCH slot format 1) in the slot allocated to HARQ-ACK in HS-DPCCH subframe n + 2* N_acknack_transmit_2 – 1, unless ACK or NACK or PRE or PRE/PRE or any combination of ACK and NACK is to be transmitted in this subframe, and

– if N_acknack_transmit _2> 1, transmit a HARQ Postamble in the slot allocated to HARQ-ACK in HS-DPCCH subframe n + 2*N_acknack_transmit_2 – 2, unless an ACK or NACK or PRE or PRE/PRE or any combination of ACK and NACK is to be transmitted in this subframe.

For the case where Secondary_Cell_Active is less than 4 when the UE is not configured in MIMO mode with four transmit antennas in any cell or is less than 2 when the UE is configured in MIMO mode with four transmit antennas in at least one cell DTX shall be used on the HS-DPCCH in the slot allocated to HARQ-ACK in the corresponding HS-DPCCH subframe unless a HARQ-ACK message is to be transmitted as described above.

For the case where Secondary_Cell_Active is greater than 3 when the UE is not configured in MIMO mode with four transmit antennas in any cell or is greater than 1 when the UE is configured in MIMO mode with four transmit antennas in at least one cell DTX shall be used on HS-DPCCH and HS-DPCCH₂ in the slot allocated to HARQ-ACK in each of the corresponding HS-DPCCH subframes unless a HARQ-ACK message is to be transmitted as described above on either of the HS-DPCCHs. If a HARQ-ACK message is to be transmitted on only one of the active HS-DPCCHs, the DTX codeword should be repeated in the HARQ-ACK field on the other HS-DPCCH in the corresponding HS-DPCCH subframe.

6A.1.1A UE procedure for receiving HS-DSCH and HS-SCCH in CELL_FACH state

The HS-SCCH reception procedure is as defined in subclause 6A.1.1.

The UE shall perform these actions in the following order:

– The UE shall monitor the first indexed HS-SCCH of the configured HS-SCCH set with the BCCH specific H-RNTI.

– If the UE is configured with a dedicated H-RNTI, the UE shall monitor the HS-SCCHs of the configured HS-SCCH set with the dedicated H-RNTI. If the UE is not configured with a dedicated H-RNTI, the UE shall monitor the HS-SCCHs of the configured HS-SCCH set with the common H-RNTI as defined in [5].

If the higher layers configure NodeB triggered HS-DPCCH transmission (as described in [5]) then NT-HS-DPCCH_Enabled is set to TRUE. Otherwise, NT-HS-DPCCH_Enabled is set to FALSE.

If the UE detects that one HS-SCCH carries consistent control information intended for this UE, the UE shall perform the following:

– If the CRC of the HS-SCCH is OK:

– If the ‘channelization-code-set information’ and ‘modulation scheme information’ correspond to an HS-SCCH order as defined in [2] subclause 4.6C.3,

– if the TFRI value corresponds to an HS-SCCH order and the order mapping is as per subclause 4.6C.3.2.1, the UE shall process the HS-SCCH orders as described in subclause 6B. If NT-HS-DPCCH_Enabled is TRUE, the UE shall not transmit the associated HARQ-ACK information acknowledging the HS-SCCH order.

– if the TFRI value corresponds to an HS-SCCH order and the order mapping is as per subclause 4.6C.3.2.2, the UE shall process the HS-SCCH order as described in [5].

– else, discard the information received on this HS-SCCH

– Else, the transport block size information shall be derived from the signalled TFRI value as defined in [9]. If the ‘Hybrid-ARQ process information’ is not included in the set configured by upper layers, the UE shall discard the information received on this HS-SCCH and on the HS-PDSCHs.

Otherwise, if the UE does not detect consistent control information intended for this UE on any of the HS-SCCHs, the UE shall discard the information received on this HS-SCCH and on the HS-PDSCHs.

If HS-DPCCH transmission is indicated by higher layers, the HS-DPCCH transmission procedure as defined in subclauses 6A.1.1 and 6A.1.2 are followed. Otherwise, the UE shall not transmit any HARQ-ACK or CQI information and DTX shall be used on all the HS-DPCCH subframes.

6A.1.1B UE procedure for receiving HS-DSCH and HS-SCCH in the URA_PCH and CELL_PCH states

The HS-SCCH reception procedure is as defined in subclause 6A.1.1.

If the UE has detected a paging indication intended for this UE, the UE shall perform the actions below:

In CELL_PCH state, if the UE is configured with a dedicated H-RNTI, the UE shall perform these actions in the following order:

– The UE shall monitor the first indexed HS-SCCH of the configured HS-SCCH set with the BCCH specific H-RNTI.

– The UE shall monitor the HS-SCCHs of the configured HS-SCCH set with the dedicated H-RNTI.

In CELL_PCH state, if the higher layers configure NodeB triggered HS-DPCCH transmission (as described in [5]) then NT-HS-DPCCH_Enabled is set to TRUE. Otherwise, NT-HS-DPCCH_Enabled is set to FALSE.

If the UE is configured with a dedicated H-RNTI, and if the UE detects that one HS-SCCH in a set of 5 associated HS-SCCH subframes (as defined in [1]) carries consistent control information intended for this UE, the UE shall perform the following:

– If the CRC of the HS-SCCH is OK,

– If the ‘channelization-code-set information’ and ‘modulation scheme information’ correspond to an HS-SCCH order as defined in [2] subclause 4.6C.3,

– if the TFRI value corresponds to an HS-SCCH order, the UE shall process the HS-SCCH orders as described in subclause 6B. If NT-HS-DPCCH_Enabled is TRUE, the UE shall not transmit the associated HARQ-ACK information acknowledging the HS-SCCH order.

– else, discard the information received on this HS-SCCH

If the UE is configured with a dedicated H-RNTI and the UE does not detect consistent control information intended for this UE on any of the HS-SCCHs, the UE shall discard the information received on this HS-SCCH and on the HS-PDSCHs.

In CELL_PCH state, when the UE is configured to receive HS-DSCH without a dedicated H-RNTI, or in URA_PCH state, the UE shall perform the following:

– the UE shall start receiving the HS-PDSCH configured for HS-SCCH-less operation and attempt to decode the HS-DSCH bits of the first associated HS-DSCH sub-frame (as defined in [1]) and the subsequent repetitions in the (Number of PCCH transmissions-1) next contiguous HS-DSCH subframes based on the set of possible HS-DSCH Transport Block Sizes configured by higher layers.

The UE shall not transmit any HARQ-ACK or CQI information and DTX shall be used on all the HS-DPCCH subframes.

6A.1.2 UE procedure for reporting channel quality indication (CQI) and precoding control indication (PCI)

The UE procedure for reporting PCI/CQI is given in subclause 6A.1.2.1 for the case when the UE is not configured in MIMO mode and not configured in MIMO mode with four transmit antennas in any cell, in subclause 6A.1.2.2 for the case when the UE is configured in MIMO mode in all cells, and in subclause 6A.1.2.3 for the case when the UE is configured in MIMO mode with four transmit antennas in all cells.

If the UE is configured in MIMO mode in at least one cell, but not in all cells and is not configured in MIMO mode with four transmit antennas in any cell, then the overall PCI/CQI reporting procedure shall be the same as if the UE was configured in MIMO mode in all cells as specified in subclause 6A.1.2.2 except that a CQI value as defined in subclause 6A.2.1 is derived and reported for the non-MIMO cells.

In the following subclauses, symbol k represents the used_CQI_feedback_cycle. The used_CQI_feedback_cycle is always set to CQI feedback cycle, except when the HS-DPCCH overhead reduction Type 2 is configured, in which case the used_CQI_feedback_cycle may change from the set value according to the rules defined in subclause 6A.1.1. When the UE is provided with a HS-DSCH configuration the used_CQI_feedback_cycle is reset to CQI feedback cycle.

6A.1.2.1 CQI reporting procedure in case the UE is not configured in MIMO mode and not configured in MIMO mode with four transmit antennas in any cell

With the exception of the provisions of subclause 6A.3, the following shall apply when the UE is not configured in MIMO mode and not configured in MIMO mode with four transmit antennas in any cell:

1) The UE derives the CQI value for the serving HS-DSCH cell as defined in subclause 6A.2.1.

If the UE is not configured in Multiflow mode and Secondary_Cell_Active is not 0, the UE also derives a CQI value for the activated secondary serving HS-DSCH cells as defined in subclause 6A.2.1.

If the UE is configured in the Multiflow mode, the UE also derives the CQI values for the assisting serving and any activated secondary serving and assisting secondary serving HS-DSCH cells as defined in subclause 6A.2.1.

The CQI report(s) are constructed from the CQI value(s) as specified in [2].

2) For k = 0, the UE shall not transmit the CQI report(s).
For k > 0 when DTX_DRX_STATUS is not TRUE, the UE shall transmit the CQI report containing the CQI value for the serving HS-DSCH cell in each subframe that starts m256 chips after the start of the associated uplink DPCCH frame with m fulfilling:

with ,

where CFN denotes the connection frame number for the associated DPCH and the set of five possible values of m is calculated as described in subclause 7.7 in [1].

For k > 0 when DTX_DRX_STATUS is TRUE, the UE shall transmit the CQI report containing the CQI value for the serving HS-DSCH cell as specified in 6C.2 based on the CQI transmission pattern. The CQI transmission pattern is the set of HS-DPCCH subframes whose HS-DPCCH discontinuous transmission radio frame number CFN_DRX and subframe number S_DRX, both defined in 6C.3, verify:

((5*CFN_DRX – UE_DTX_DRX_Offset + S_DRX ) MOD k’) = 0, with .

3) The UE shall repeat the transmission of the CQI report containing the CQI value for the serving HS-DSCH cell derived in 1) over the next (N_cqi_transmit – 1) consecutive HS-DPCCH sub frames in the slots respectively allocated to the CQI as defined in [1]. UE does not support the case of .

4a) If Secondary_Cell_Enabled is less than 4, the UE is not in Multiflow mode, and if an additional CQI report is derived in 1), the UE shall transmit this CQI report over the next N_cqi_transmit consecutive HS-DPCCH sub frames immediately following the transmission of the CQI report in 2) and 3). UE does not support the case of .

4b) If Secondary_Cell_Enabled is 7 and Secondary_Cell_Active is 7 the UE shall for the activated cells

– Transmit the CQI report containing the CQI value of the 4^th secondary serving HS-DSCH cell simultaneously as the CQI report containing the CQI value of the serving HS-DSCH cell.

– Transmit the CQI report containing the CQI value of the 6^th secondary serving HS-DSCH cell simultaneously as the CQI report containing the CQI value of the 2^nd secondary serving HS-DSCH cell

– Transmit the CQI report containing the CQI value of the 5^th secondary serving HS-DSCH cell simultaneously as the CQI report containing the CQI value of the 1^st secondary serving HS-DSCH cell

– Transmit the CQI report containing the CQI value of the 7^th secondary serving HS-DSCH cell simultaneously as the CQI report containing the CQI value of the 3^rd secondary serving HS-DSCH cell

The CQI report is transmitted over (N_cqi_transmit – 1) consecutive HS-DPCCH sub frames. The UE does not support the case of .

4c) If Secondary_Cell_Enabled is greater than 3 and Secondary_Cell_Active is less than 7 the UE shall

– For HS-DPCCH

– Transmit the CQI reports in the same slots as it would transmit the CQI reports if Secondary_Cell_Enabled is equal to 4 and the 1^st, 2^nd and 3^rd secondary serving HS-DSCH cell were active.

– For HS-DPCCH₂

– Transmit the CQI report of the 4^th secondary serving HS-DSCH cell (if present) so that it starts in the same slot as the transmissions of CQI report of the serving HS-DSCH starts.

– If at most one of the 4^th, 5^th, 6^th or 7^th secondary serving HS-DSCH cell is deactivated the transmissions of the CQI reports for the active secondary serving HS-DSCH cells occurs in the same slots as if Secondary_Cell_Active is equal to 7.

– If at most two of 4^th, 5^th, 6^th and 7^th secondary serving HS-DSCH cell are active the transmissions of the CQI reports associated with the active secondary serving HS-DSCH cell with lowest index as indicated by higher layers is transmitted in the CQI field of the subframe where the 4^th and 6^th secondary serving HS-DSCH cell would be transmitted if Secondary_Cell_Active is 7. The CQI report associated with the other secondary serving HS-DSCH cell (if present) is always transmitted in the subframe(s) immediately following the transmissions of the first CQI report.

The CQI reports transmitted on HS-DPCCH₂ are always over (N_cqi_transmit-1) consecutive HS-DPCCH sub frames.

4d) If the UE is configured in the Multiflow mode

4d.1) If the UE is configured with the Serving HS-DSCH and Assisting Serving HS-DSCH only, and neither of the cells is in MIMO mode, the combined CQI report is transmitted and repeated as defined in steps 2) and 3) and no other CQI reports are sent. The CQI reports are constructed from the CQI value(s) as specified in subclause 4.7.4.3.1, MF case 1 in table 15C.8 of [2]

4d.2) For all other non-MIMO Multiflow configurations,

– The UE shall transmit the CQI report(s) associated with the serving HS-DSCH cells as defined in step 2).

– If a MF case from 19 to 26 [2] is not configured, the UE shall transmit the CQI report(s) associated with the assisting serving HS-DSCH cells in the next HS-DPCCH subframe immediately following the CQI report(s) for the serving HS-DSCH cells.

– If a MF case from 19 to 22 [2] is configured, the UE shall transmit the CQI reports associated with the 2nd secondary serving and assisting serving HS-DSCH cells in the next HS-DPCCH subframe immediately following the CQI reports for the serving and 1st secondary serving HS-DSCH cells.

– If a MF case from 23 to 26 [2] is configured, the UE shall transmit the CQI reports associated with the 1st assisting secondary serving and 2nd assisting secondary serving HS-DSCH cells in the next HS-DPCCH subframe immediately following the CQI reports for the serving and assisting serving HS-DSCH cells.

– The UE shall repeat the transmission of the CQI report(s) associated with the serving HS-DSCH cells (N_cqi_transmit – 1) times in every other HS-DPCCH sub frame in the slots allocated to the CQI in accordance with the composite CQI report constructed in subclause 4.7.4.3 of [2].

– The UE shall repeat the transmission of the CQI report(s) associated with the assisting serving HS-DSCH cells (N_cqi_transmit_2– 1) times in every other HS-DPCCH sub frame in the slots allocated to the CQI in accordance with the composite CQI report constructed in subclause 4.7.4.3 of [2].

– UE does not support the case of k’<(N_cqi_transmit + N_cqi_transmit_2).

– The CQI reports are constructed from the CQI value(s) as specified in subclause 4.7.4.3, MF cases 3 to 6, 11 to 14, 19 to 22 and 23 to 26 in tables 15C.10, 15C.11, 15C.14, 15C.16 and 15C.17 of [2].

5) The UE shall not transmit CQI reports in other subframes than those described in 2), 3) , 4a), 4b), 4c) and 4d).

6A.1.2.2 Composite PCI/CQI reporting procedure in case the UE is configured in MIMO mode

The following types of CQI reports have to be supported by the UE when the UE is configured in MIMO mode and single-stream restriction is not configured:

Type A CQI reports that indicate the supported transport format(s) for the number of simultaneously transmitted transport blocks that the UE prefers according to the current channel conditions assuming that the preferred primary precoding vector as indicated by the PCI value signalled in the same HS-DPCCH sub-frame would be applied at the Node-B for the primary transport block and in case two transport blocks are preferred the precoding vector orthogonal to the preferred primary precoding vector would be applied for the secondary transport block. This type of CQI report contains information on either one transport format or a combination of two transport formats depending on what is currently the preferred number of transport blocks (either 1 or 2).

Type B CQI reports that indicate the supported transport format for a single transmitted transport block according to the current channel conditions assuming that the preferred primary precoding vector as indicated by the PCI value signalled in the same HS-DPCCH sub-frame would be applied at the Node-B for the primary transport block and that no secondary transport block is transmitted.

When UE is configured in MIMO mode and single-stream restriction is configured only type B CQI report have to be supported by the UE.

With the exception of the provisions of subclause 6A.3, the following shall apply when the UE is configured in MIMO mode:

1) The UE derives the PCI value for the serving HS-DSCH cell as defined in subclause 6A.4.1 and when single-stream restriction is not configured either a type A or a type B CQI value and when single-stream restriction is configured type B CQI value for the serving HS-DSCH cell as defined in subclause 6A.2.2 depending on which type of CQI shall be reported as defined below.

If UE is not configured in Multiflow mode and Secondary_Cell_Active is not 0, the UE also derives a PCI value for the activated secondary serving HS-DSCH cell(s) as defined in subclause 6A.4 and when single-stream restriction is not configured either a type A or a type B CQI value and when single-stream restriction is configured type B CQI value for the secondary serving HS-DSCH cell as defined in subclause 6A.2.2 depending on which type of CQI shall be reported as defined below.

If the UE is configured in the Multiflow mode,

– the UE also derives a PCI value for the assisting serving and any activated secondary serving and assisting secondary serving HS-DSCH cells as defined in subclause 6A.4 if the UE is configured in MIMO mode in that cell,

– and when single-stream restriction is not configured, either type A or type B CQI value, and when single-stream restriction is configured, type B CQI value for the assisting serving and any activated secondary serving and assisting secondary serving HS-DSCH cells as defined in subclause 6A.2.2 depending on which type of CQI shall be reported.

The PCI/CQI report(s) in each subframe are constructed from the composite PCI/CQI value(s) as specified in [2].

a) For k = 0, the UE shall not transmit a composite PCI/CQI value.

b) For k > 0 when DTX_DRX_STATUS is not TRUE (see subclause 6A.1), the UE shall transmit the composite PCI/CQI value(s) for the cells in the PCI/CQI report containing the composite PCI/CQI value for the serving HS-DSCH cell in each subframe that starts m256 chips after the start of the associated uplink DPCCH frame with m fulfilling

with , (x1)

where CFN denotes the connection frame number for the associated DPCH and the set of five possible values of m is calculated as described in subclause 7.7 in [1].

When single-stream restriction is not configured and the relation

holds, the UE shall report a type A CQI value. Otherwise the UE shall report a type B CQI value.

c) For k > 0 when DTX_DRX_STATUS is TRUE (see subclause 6A.1), the UE shall transmit the CQI value for the cells in the PCI/CQI report containing the composite PCI/CQI value for the serving HS-DSCH cell as specified in 6C.2 based on the CQI transmission pattern. The CQI transmission pattern is the set of HS-DPCCH subframes whose HS-DPCCH discontinuous transmission radio frame number CFN_DRX and subframe number S_DRX, both defined in 6C.3, verify:

((5*CFN_DRX – UE_DTX_DRX_Offset + S_DRX ) mod k’) = 0, with .

When single-stream restriction is not configured and the relation

holds, the UE shall report a type A CQI value. Otherwise the UE shall report a type B CQI value.

d) For k>0, each PCI value derived in 1) shall be transmitted together with the corresponding CQI value as a composite PCI/CQI value. It should be noted that in case that 2560 is not an integer multiple of M_cqi, the sequence of type A and type B CQI reports might not always be periodic due to CFN roll-over.

3) The UE shall repeat the transmission of the CQI report containing the composite PCI/CQI value for the serving HS-DSCH cell derived above over the next (N_cqi_transmit – 1) consecutive HS-DPCCH sub frames in the slots respectively allocated to CQI as defined in [1]. The UE does not support the case of .

4a) If Secondary_Cell_Enabled is less than 4, the UE is not in Multiflow mode, and if an additional PCI/CQI report is derived in 1), the UE shall transmit this PCI/CQI report over the next N_cqi_transmit consecutive HS-DPCCH sub frames immediately following the transmission of the CQI report in 2) and 3). UE does not support the case of .

4b) If Secondary_Cell_Enabled is 7 and Secondary_Cell_Active is 7 the UE shall:

– Transmit the PCI/CQI report containing the PCI/CQI value of the 4^th secondary serving HS-DSCH cell simultaneously as the PCI/CQI report containing the PCI/CQI value of the serving HS-DSCH cell.

– Transmit the PCI/CQI report containing the PCI/CQI value of the 6^th secondary serving HS-DSCH cell simultaneously as the PCI/CQI report containing the PCI/CQI value of the 2^nd secondary serving HS-DSCH cell

– Transmit the PCI/CQI report containing the PCI/CQI value of the 5^th secondary serving HS-DSCH cell simultaneously as the PCI/CQI report containing the PCI/CQI value of the 1^st secondary serving HS-DSCH cell

– Transmit the PCI/CQI report containing the PCI/CQI value of the 7^th secondary serving HS-DSCH cell simultaneously as the PCI/CQI report containing the PCI/CQI value of the 3^rd secondary serving HS-DSCH cell

The PCI/CQI report is transmitted over (N_cqi_transmit – 1) consecutive HS-DPCCH sub frames. The UE does not support the case of .

4c) If Secondary_Cell_Enabled is greater than 3 and Secondary_Cell_Active is less than 7 the UE shall:

– For HS-DPCCH

– Transmit the PCQ/CQI reports in the same slots as it would transmit the PCI/CQI reports if Secondary_Cell_Enabled is equal to 4 and the same of the 1^st, 2^nd and 3^rd secondary serving HS-DSCH cell were active.

– For HS-DPCCH₂

– Transmit the PCI/CQI report of the 4^th secondary serving HS-DSCH cell (if present) so that it starts in the same slot as the transmissions of PCI/CQI report of the serving HS-DSCH cell starts.

– If at most one of the 4^th, 5^th, 6^th or 7^th secondary serving HS-DSCH cell is deactivated the transmissions of the PCI/CQI reports for the active secondary serving HS-DSCH cells occurs in the same slots as if Secondary_Cell_Active is equal to 7.

– If at most two of 4^th, 5^th, 6^th and 7^th secondary serving HS-DSCH cell are active the transmissions of the PCI/CQI reports associated with the active secondary serving HS-DSCH cell with lowest index as indicated by higher layers is transmitted in the PCI/CQI field of the subframe where the 4^th and 6^th secondary serving HS-DSCH cell would be transmitted if Secondary_Cell_Active is 7. The PCI/CQI report associated with the other secondary serving HS-DSCH cell (if present) is always transmitted in the subframe(s) immediately following the transmissions of the first PCI/CQI report.

The PCI/CQI reports transmitted on HS-DPCCH₂ are always over (N_cqi_transmit-1) consecutive HS-DPCCH sub frames.

4d) If the UE is configured in the Multiflow mode,

– The UE shall transmit the PCI/CQI report(s) associated with the serving HS-DSCH cells as defined in step 2).

– If a MF case from 27 to 34 [2] is not configured, the UE shall transmit the PCI/CQI report(s) associated with the assisting serving HS-DSCH cells in the next HS-DPCCH subframe immediately following the PCI/CQI report(s) for the serving HS-DSCH cells.

– If a MF case from 27 to 30 [2] is configured, the UE shall transmit the PCI/CQI reports associated with the 2nd secondary serving and assisting serving HS-DSCH cells in the next HS-DPCCH subframe immediately following the PCI/CQI reports for the serving and 1st secondary serving HS-DSCH cells.

– If a MF case from 31 to 34 [2] is configured, the UE shall transmit the PCI/CQI reports associated with the 1st assisting secondary serving and 2nd assisting secondary serving HS-DSCH cells in the next HS-DPCCH subframe immediately following the PCI/CQI reports for the serving and assisting serving HS-DSCH cells.

– The UE shall repeat the transmission of the PCI/CQI report(s) associated with the serving HS-DSCH cells (N_cqi_transmit – 1) times in every other HS-DPCCH sub frame in the slots allocated to the PCI/CQI in accordance with the composite PCI/CQI report constructed in subclause 4.7.4.3 of [2].

– The UE shall repeat the transmission of the PCI/CQI report(s) associated with the assisting serving HS-DSCH cells (N_cqi_transmit_2– 1) times in every other HS-DPCCH sub frame in the slots allocated to the PCI/CQI in accordance with the composite PCI/CQI report constructed in subclause 4.7.4.3 of [2].

– UE does not support the case of k’<(N_cqi_transmit + N_cqi_transmit_2).

– The PCI/CQI reports are constructed from the PCI/CQI value(s) as specified in subclause 4.7.4.3, MF cases 2, 7…10, 15…18, 27…30 and 31…34 in tables 15C.9, 15C.12, 15C.13, 15C.15, 15C.18 and 15C.19 of [2].

5) The UE shall not transmit PCI/CQI reports in other subframes than those described in 2), 3) , 4a), 4b), 4c) and 4d).

6A.1.2.3 Composite NTBP/PCI/CQI reporting procedure in case the UE is configured in MIMO mode with four transmit antennas

The following types of CQI reports have to be supported by the UE when the UE is configured in MIMO mode with four transmit antennas:

Type A:

CQI reports that indicate the supported transport format(s) for the number of simultaneously transmitted transport blocks that the UE prefers according to the current channel conditions assuming that the preferred precoding matrix as indicated by the PCI value signalled in the same HS-DPCCH sub-frame would be applied at the Node-B.

Type B:

CQI reports that indicate the supported transport format for a single transmitted transport block according to the current channel conditions assuming that the preferred precoding vector as indicated by the PCI value signalled in the same HS-DPCCH sub-frame would be applied at the Node-B for the primary transport block and that no second, third, and fourth transport blocks are transmitted.

With the exception of the provisions of subclause 6A.3, the following shall apply when the UE is configured in MIMO mode with four transmit antennas:

1) The UE derives the NTBP, PCI value for the serving HS-DSCH cell as defined in subclause 6A.4. 2 and either a type A or a type B CQI value for the serving HS-DSCH cell depending on which type of CQI shall be reported as defined below.

If Secondary_Cell_Active is not 0, the UE also derives NTBP, PCI value for the activated secondary serving HS-DSCH cell(s) as defined in subclause 6A.4.1 and 6A.4.2 and either a type A or a type B CQI value for the secondary serving HS-DSCH cell depending on which type of CQI shall be reported as defined below.

The NTBP/PCI/CQI report(s) in each subframe are constructed from the composite NTBP/PCI/CQI value(s) as specified in [2].

a) For k = 0, the UE shall not transmit a composite NTBP/PCI/CQI value.

b) For k > 0 when DTX_DRX_STATUS is not TRUE (see subclause 6A.1), the UE shall transmit the composite NTBP/PCI/CQI value(s) for the cells in the NTBP/PCI/CQI report containing the composite NTBP/PCI/CQI value for the serving HS-DSCH cell in each subframe that starts m256 chips after the start of the associated uplink DPCCH frame with m fulfilling

with , (x1)

where CFN denotes the connection frame number for the associated DPCH and the set of five possible values of m is calculated as described in subclause 7.7 in [1].

c) For k > 0 when DTX_DRX_STATUS is TRUE (see subclause 6A.1), the UE shall transmit the CQI value for the cells in the NTBP/PCI/CQI report containing the composite NTBP/PCI/CQI value for the serving HS-DSCH cell as specified in 6C.2 based on the CQI transmission pattern. The CQI transmission pattern is the set of HS-DPCCH subframes whose HS-DPCCH discontinuous transmission radio frame number CFN_DRX and subframe number S_DRX, both defined in 6C.3, verify:

((5*CFN_DRX – UE_DTX_DRX_Offset + S_DRX ) mod k’) = 0, with .

d) For k>0, each NTBP/PCI value derived in 1) shall be transmitted together with the corresponding CQI value as a composite PCI/CQI value. It should be noted that in case that 2560 is not an integer multiple of M_cqi, the sequence of type A and type B CQI reports might not always be periodic due to CFN roll-over.

3) The UE shall repeat the transmission of the CQI report containing the composite NTBP/PCI/CQI value for the serving HS-DSCH cell derived above over the next (N_cqi_transmit – 1) consecutive HS-DPCCH sub frames in the slots respectively allocated to CQI as defined in [1]. The UE does not support the case of .

4a) If Secondary_Cell_Enabled is less than 2, and if an additional NTBP/PCI/CQI report is derived in 1), the UE shall transmit this NTBP/PCI/CQI report over the next N_cqi_transmit consecutive HS-DPCCH sub frames immediately following the transmission of the CQI report in 2) and 3). UE does not support the case of .

4b) If Secondary_Cell_Enabled is 3 and Secondary_Cell_Active is 3 the UE shall:

– Transmit the NTBP/PCI/CQI report containing the NTBP/PCI/CQI value of the 2^nd secondary serving HS-DSCH cell simultaneously as the NTBP/PCI/CQI report containing the NTBP/PCI/CQI value of the serving HS-DSCH cell.

– Transmit the NTBP/PCI/CQI report containing the NTBP/PCI/CQI value of the 3^rd secondary serving HS-DSCH cell simultaneously as the NTBP/PCI/CQI report containing the NTBP/PCI/CQI value of the 1^st secondary serving HS-DSCH cell.

The NTBP/PCI/CQI report is transmitted over (N_cqi_transmit) consecutive HS-DPCCH sub frames. The UE does not support the case of .

5) The UE shall not transmit NTBP/PCI/CQI reports in other subframes than those described in 2), 3) , 4a) and 4b).

6A.1.3 Node B procedure for transmitting the HS-DSCH and HS-SCCH

6A.1.3.1 Node B procedure for transmitting the HS-DSCH and HS-SCCH in the CELL_DCH state

When transmitting to a UE for which the HS-SCCH_less_mode=1, the Node B shall use the following procedures:

– The Node B can always transmit an HS-DSCH transport block using CRC attachment method 1 and HS-SCCH type 1.

– If HS-SCCH_less_Active is TRUE, the Node B may transmit an HS-DSCH transport block using CRC attachment method 2 and HS-SCCH type 2 according to [2] provided that the size of the transport block belongs to the set of transport block sizes configured for HS-SCCH less operation by higher layers. In this case, a maximum of two retransmissions may be used for each HS-DSCH transport block.

Otherwise,

– The Node B should always transmit an HS-DSCH transport block using CRC attachment method 1 and

– HS-SCCH type 1 in a cell where the UE is not configured in MIMO mode and not configured in MIMO mode with four transmit antennas, or

– HS-SCCH type 3 in a cell where the UE is configured in MIMO mode, or

– HS-SCCH type 4 in a cell where the UE is configured in MIMO mode with four transmit antennas.

If Node B uses CRC attachment method 1 or CRC attachment method 2 for the first transmission of a transport block, Node B shall use CRC attachment method 1 or CRC attachment method 2 respectively for any retransmission of the transport block.

When transmitting/retransmitting, in a cell where the UE is not configured in MIMO mode and not configured in MIMO mode with four transmit antennas, a transport block using CRC attachment method 1 or retransmitting a transport block to a UE using CRC attachment method 2, the Node B shall transmit the corresponding control information using HS-SCCH type 1 or HS-SCCH type 2 respectively on one of the HS-SCCHs in the UE’s HS-SCCH set.

When transmitting/retransmitting, in a cell where the UE is configured in MIMO mode, a transport block the Node B shall use CRC attachment method 1 and transmit the corresponding control information using HS-SCCH type 3 on one of the HS-SCCHs in the UE’s HS-SCCH set.

When transmitting/retransmitting, in a cell where the UE is configured in MIMO mode with four transmit antennas, the Node B shall use CRC attachment method 1 and transmit the corresponding control information using HS-SCCH type 4 on one of the HS-SCCHs in the UE’s HS-SCCH set.

If the Simplified HS-SCCH type 1 operation is configured, once a UE has reported a low CQI value over the HS-DPCCH (i.e., CQI values from 1 to 6), the UE may assume that a HS-SCCH Type 1 transmission carrying control information corresponding to 1 code and QPSK would be transmitted in the first available HS-SCCH subframe once four sub-frames have passed after the end of the sub-frame where the HS-DPCCH was transmitted.

– The HS-SCCH orders described in [2] subclause 4.6C.2.2.5, which upon their successful reception shall be acknowledged by the UE, can be used to start and stop a transmission interval within which any scheduled HS-SCCH Type 1 transmission will carry control information corresponding to 1 code and QPSK. While the UE is within such a transmission interval, once the UE has reported a CQI value over the HS-DPCCH (i.e. any value), the UE may assume that a HS-SCCH Type 1 transmission carrying control information corresponding to 1 code and QPSK would be transmitted in the first available HS-SCCH subframe once four sub-frames have passed after the end of the sub-frame where the HS-DPCCH was transmitted. When the network has transmitted a HS-SCCH order for stopping the transmission interval created by the HS-SCCH orders, a fall back to the CQI based triggering mechanism occurs.

6A.1.3.2 Node B procedure for transmitting the HS-DSCH and HS-SCCH in the CELL_FACH state

When transmitting to a UE the Node B shall use the following procedures:

– The Node B shall always transmit an HS-DSCH transport block using CRC attachment method 1 and HS-SCCH type 1.

– When transmitting/retransmitting a transport block the Node B shall transmit the corresponding control information using HS-SCCH type 1 on one of the HS-SCCHs in the configured HS-SCCH set. When transmitting/retransmitting a transport block with the BCCH specific H-RNTI, the Node B shall use the first indexed HS-SCCH of the configured HS-SCCH set.

– When the NodeB transmits an HS-SCCH order as defined in [2] subclause 4.6C.3.2.2, the NodeB shall start transmitting the HS-SCCH associated with the HS-DSCH four sub-frames after the end of the sub-frame where the HS-SCCH order was transmitted. The UE monitors the reception of the HS-SCCH order as specified in [5].

6A.1.3.3 Node B procedure for transmitting the HS-DSCH and HS-SCCH in the URA_PCH or CELL_PCH state

The timing relation of the PICH frame to the first associated HS-SCCH subframe and its associated HS-DSCH subframe is described in 7.2A of [1].

In CELL_PCH state, when transmitting with a dedicated H-RNTI or BCCH specific H-RNTI, the Node B shall use the following procedures:

– The Node B may transmit HS-SCCH type 1 in any of the 5 HS-SCCH subframes associated with the PICH frame (as defined in [1]), and the corresponding HS-DSCH transport block using CRC attachment method 1 in the associated HS-DSCH subframe. When transmitting with the BCCH specific H-RNTI, the Node B shall use the first indexed HS-SCCH of the configured HS-SCCH set.

– The Node B may retransmit the HS-DSCH in any of the subsequent sub-frames associated with the PICH (as defined in [1]). All retransmissions shall be sent with HS-SCCH type 1.

– The Node B may also transmit an HS-SCCH order, as defined in [2] subclause 4.6C.3, in any of the 5 HS-SCCH subframes associated with the PICH frame (as defined in [1]).

In CELL_PCH state, when transmitting to a UE not configured with a dedicated H-RNTI, or in URA_PCH state, the Node B shall use the following procedures:

– The Node B shall not transmit an HS-SCCH.

– The Node B shall transmit an HS-DSCH transport block in the HS-DSCH subframe associated with the first associated HS-SCCH subframe, with the following parameters:

– QPSK modulation

– HS-PDSCH channelisation code configured for HS-SCCH less paging operation by higher layers

– CRC attachment method 1 for the HS-DSCH

– the size of the transport block belongs to the set of transport block sizes configured for HS-SCCH less paging operation by higher layers.

– The Node B shall retransmit the HS-DSCH transport block (Number of PCCH transmissions-1) times in the next contiguous subframes without transmitting HS-SCCH.

– For the first, second, third, fourth and fifth transmissions, the redundancy and constellation version of the HS-DSCH transport block are 0, 2, 5, 6, and 1, respectively.