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WCDMA3G_DnLkMux


Description: Downlink multiplexing for dedicated physical channel
Library: 3GPPFDD 10-99, Physical Channel Multiplex
Class: SDFWCDMA3G_DnLkMux

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
TF n = number of transmit format indicator bits
T n = number of transmit power control bits
P n = number of pilot bits
F n = number of feedback indicator bits

Pin Inputs

Pin

Name

Description

Signal Type

1

DPDCH

DPDCH data bits

int

2

TPC

transmit power control bits

int

3

TFCI

transport format combination indicator bits

int

Pin Outputs

Pin

Name

Description

Signal Type

4

out

one slot data after multiplexing

int

Notes/Equations
  1. This model is used to implement data multiplexing for downlink dedicated physical channel (DPCH). The DPDCH data bits are multiplexed with TFCI bits and TPC bits.
    Each firing, (Ns - NPilot ) tokens of out are produced when (NData1 + NData2) tokens of DPDCH, NTFCI tokens of TFCI and NTPC tokens of TPC 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 downlink DPCCH; see the following figure. This model organizes bit sequence of DPCH in one slot according to the following table. Pilot bits are not included. They are multiplexed to DPCH in model WCDMA3G_STTDMux.

    Downlink DPCH Frame Structure

    N 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 TFCI field.

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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