5.9B HS-DSCH procedure in CELL_PCH or URA_PCH state

25.2243GPPPhysical layer procedures (TDD)TS

5.9B.1 Link adaptation procedure

In HS-DSCH reception in CELL_PCH and URA_PCH state, after receiving a paging indication on PICH for its specific PI, the UE with a stored dedicated UE identity shall start monitoring HS-SCCH while the UE without a dedicated UE identity shall start monitoring the HS-PDSCH(s). The HS-PDSCH physical resource and associated signalling are broadcasted in the system information.

In a multi-frequency cell, HS-DSCH reception in CELL_PCH and URA_PCH is only on primary frequency.

Node B procedure:

The timing relation of the PICH frame to the associated HS-SCCH subframe or the HS-DSCH is described in 7.2.7.3 and 7.2.7.4 of [8].

If the UE is configured with a dedicated UE identity, the Node B shall use the following procedures:

– The Node B shall transmit the HS-SCCH order associated with the PICH frame using the dedicated UE identity.

– If the Node B has received E-RUCCH, the Node B considers that the UE has transitted to CELL_FACH state.

If the UE is configured without dedicated UE identity, 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 with parameters configured by RRC layer.

– The Node B shall retransmit the HS-DSCH transport block (2*m-1) times in the next contiguous subframes without transmitting HS-SCCH.

– The Node B shall use QPSK modulation for each transmission of HS-PDSCH.

– For the first transmission and retransmission, the redundancy and constellation version of the HS-DSCH transport block are 0, 3, 4, 7, 0, 3…

UE procedure:

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

If the UE is configured with a dedicated UE identity, UE shall receive the corresponding HS-SCCH subframes：

– if the UE detects that one of the monitored HS-SCCHs in a set of associated HS-SCCH subframes carries consistent control information (HS-SCCH order) intended for this UE, the UE shall initiate the uplink synchronization procedure on primary frequency and transit to CELL_FACH state.

– if the UE detects that one of the monitored HS-SCCHs in a set of associated HS-SCCH subframes carries consistent control information (HS-SCCH type 1 carrying BCCH specific H-RNTI), the UE shall receive the corresponding HS-DSCH based on the association and timing between HS-SCCH and HS-DSCH.

– if the UE does not detect any HS-SCCH carries consistent control information intended for this UE in the M subframes, the UE shall resume the DRX operation.

If the UE is configured without dedicated UE identity and there is no legacy PCH channel, UE shall receive the corresponding HS-DSCH TTIs and:

– consider that paging message is retransmitted in 2*m subframes, the parameter m is the number of frame that a paging sub-channel occupies.

– combine retransmissions to the same HARQ buffer.

– pass the data to higher layers if the CRC is correct after decoding the data.

– resume the DRX operation if the CRC fails after receiving 2*m subframes.

5.9B.2 HS-DSCH channel quality indication procedure

The UE in CELL_PCH or URA_PCH state does not report CQI via HS-SICH.

5.9B.3 HS-SCCH monitoring procedure

The UE with a stored dedicated UE identity shall monitor HS-SCCH in M sub-frames after receiving its specific paging indication on PICH (as described in [8]).

The UE without a dedicated UE identity shall not monitor any HS-SCCH.