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WCDMA3G_DnLkDeMux


Description: Downlink de-multiplexing for dedicated physical channel
Library: 3GPPFDD 10-99, Physical Channel Multiplex
Class: SDFWCDMA3G_DnLkDeMux

Parameters
Name Description Default Type Range
DL_DPCHType downlink physical channel type: DPCH_15kbps_TF0_T2_P4, DPCH_15kbps_TF2_T2_P4, DPCH_30kbps_TF0_T2_P2, DPCH_30kbps_TF2_T2_P2, DPCH_30kbps_TF0_T2_P4, DPCH_30kbps_TF2_T2_P4, DPCH_30kbps_TF0_T2_P8, DPCH_30kbps_TF2_T2_P8, DPCH_60kbps_TF0_T2_P4, DPCH_60kbps_TF2_T2_P4, DPCH_60kbps_TF0_T2_P8, DPCH_60kbps_TF2_T2_P8, DPCH_120kbps_TF8_T4_P8, DPCH_120kbps_TF0_T4_P8, DPCH_240kbps_TF8_T4_P8, DPCH_240kbps_TF0_T4_P8, DPCH_480kbps_TF8_T8_P16, DPCH_480kbps_TF0_T8_P16, DPCH_960kbps_TF8_T8_P16, DPCH_960kbps_TF0_T8_P16, DPCH_1920kbps_TF8_T8_P16, DPCH_1920kbps_TF0_T8_P16 DPCH_30kbps_TF2_T2_P8 enum
† where
TFn = number of transmit format indicator bits
Tn = number of transmit power control bits
Pn = number of pilot bits
Fn = number of feedback indicator bits

Pin Inputs

Pin

Name

Description

Signal Type

1

in

one slot data bits to be de-multiplexed

real

Pin Outputs

Pin

Name

Description

Signal Type

2

DPDCH

DPDCH data bits

real

3

TPC

transmit power control bits

real

4

TFCI

transport format combination indicator bits

real

Notes/Equations
  1. This model is used to implement data de-multiplexing for downlink dedicated physical channel (DPCH). Input bits are de-multiplexed into DPDCH data bits, TFCI bits, and TPC bits.
    Each firing, (NData1+ NData2) tokens of DPDCH, NTFCI tokens of TFCI and NTPC tokens of TPC are produced when Ns tokens of in are consumed. Refer to the following table for N values.
  2. Within one downlink DPCH, dedicated data generated at Layer 2 and above (dedicated channel (DCH) ), is transmitted in time-multiplex with control information generated at Layer 1 (known pilot bits, TPC commands, and an optional TFCI). The downlink DPCH can thus be seen as a time multiplex of a downlink DPDCH and a DPCCH. This model receives DPDCH bits, TPC bits and TFCI bits from bit sequence of DPCH in one slot. Pilot bits are not produced.
    Values
    DL_DPCHType Bits per Slot (Ns) DPDCH Bits per Slot DPCCH Bits per Slot
    NData1 NData2 NTFCI NTPC NPilot
    DPCH_15kbps_TF0_T2_P4 10 2 2 0 2 4
    DPCH_15kbps_TF2_T2_P4 10 0 2 2 2 4
    DPCH_30kbps_TF0_T2_P2 20 2 14 0 2 2
    DPCH_30kbps_TF2_T2_P2 20 0 14 2 2 2
    DPCH_30kbps_TF0_T2_P4 20 2 12 0 2 4
    DPCH_30kbps_TF2_T2_P4 20 0 12 2 2 4
    DPCH_30kbps_TF0_T2_P8 20 2 8 0 2 8
    DPCH_30kbps_TF2_T2_P8 20 0 8 2 2 8
    DPCH_60kbps_TF0_T2_P4 40 6 28 0 2 4
    DPCH_60kbps_TF2_T2_P4 40 4 28 2 2 4
    DPCH_60kbps_TF0_T2_P8 40 6 24 0 2 8
    DPCH_60kbps_TF2_T2_P8 40 4 24 2 2 8
    DPCH_120kbps_TF8_T4_P8 80 4 56 8 4 8
    DPCH_120kbps_TF0_T4_P8 80 4 56 0 4 8
    DPCH_240kbps_TF8_T4_P8 160 20 120 8 4 8
    DPCH_240kbps_TF0_T4_P8 160 20 120 0 4 8
    DPCH_480kbps_TF8_T8_P16 320 48 240 8 8 16
    DPCH_480kbps_TF0_T8_P16 320 48 240 0 8 16
    DPCH_960kbps_TF8_T8_P16 640 112 496 8 8 16
    DPCH_960kbps_TF0_T8_P16 640 112 496 0 8 16
    DPCH_1920kbps_TF8_T8_P16 1280 240 1008 8 8 16
    DPCH_1920kbps_TF0_T8_P16 1280 240 1008 0 8 16
    TFCI bits are not used, 8 DTX are used in the TFCI field (see the following figure).

    Downlink DPCH Frame Structure

References
  1. 3GPP Technical Specification TS 25.211 V3.0.0, "Physical channels and mapping of transport channels onto physical channels (FDD)," October 1999.
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