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WCDMA3G_TrCHMux


Description: Transport channel multiplexing
Library: 3GPPFDD 10-99, Transport Channel Multiplex
Class: SDFWCDMA3G_TrCHMux

Parameters
Name Description Default Sym Type Range
LinkDir link direction: Downlink, Uplink Downlink   enum  
TrCHPosInCCTrCH type of transport channel positions in one frame of CCTrCH: Fixed, Flexible Fixed   enum  
PhyCHNum number of physical channels that CCTrCH is mapped to 1 Np int [1, ∞)
DL_PhyCHType 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, PCCPCH DPCH_30kbps_TF2_T2_P8   enum
UL_DPDCHType uplink dedicated physical data channel type: DPDCH_15kbps, DPDCH_30kbps, DPDCH_60kbps, DPDCH_120kbps, DPDCH_240kbps, DPDCH_480kbps, DPDCH_960kbps DPDCH_30kbps   enum  
TrCHNum number of transport channels to be multiplexed 1 Nt int [1, ∞)
† 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

in

data of each transport channel to be multiplexed

multiple int

2

inSize

data size of each transport channel to be multiplexed

multiple int

Pin Outputs

Pin

Name

Description

Signal Type

3

out

data after all transport channels are multiplexed

int

Notes/Equations
  1. This model is used to multiplex radio frames of all transport channels into one coded composite transport channel (CCTrCH). It also inserts discontinuous transmission indications with flexible positions of transport channels in downlinks.
    Each firing, Mp × Np tokens of out are produced when Mp × Np tokens of each in signal and one token of each inSize signal are consumed. Refer to the following table for the value of Mp.
  2. DL_PhyCHType is valid only when LinkDir = Downlink; UL_DPDCHType is valid only when LinkDir = Uplink. When DL_PhyCHType = PCCPCH, set PhyCHNum and TrCHNum to 1.
    Value of Mp
    Physical Channel Type Bits per Frame (Mp)
    DL_PhyCHType
    DPCH_15kbps_TF0_T2_P4 60
    DPCH_15kbps_TF2_T2_P4 30
    DPCH_30kbps_TF0_T2_P2 240
    DPCH_30kbps_TF2_T2_P2 210
    DPCH_30kbps_TF0_T2_P4 210
    DPCH_30kbps_TF2_T2_P4 180
    DPCH_30kbps_TF0_T2_P8 150
    DPCH_30kbps_TF2_T2_P8 120
    DPCH_60kbps_TF0_T2_P4 510
    DPCH_60kbps_TF2_T2_P4 480
    DPCH_60kbps_TF0_T2_P8 450
    DPCH_60kbps_TF2_T2_P8 420
    DPCH_120kbps_TF8_T4_P8 900
    DPCH_120kbps_TF0_T4_P8 900
    DPCH_240kbps_TF8_T4_P8 2100
    DPCH_240kbps_TF0_T4_P8 2100
    DPCH_480kbps_TF8_T8_P16 4320
    DPCH_480kbps_TF0_T8_P16 4320
    DPCH_960kbps_TF8_T8_P16 9120
    DPCH_960kbps_TF0_T8_P16 9120
    DPCH_1920kbps_TF8_T8_P16 18720
    DPCH_1920kbps_TF0_T8_P16 18720
    PCCPCH 270
    UL_DPDCHType
    DPDCH_15kbps 150
    DPDCH_30kbps 300
    DPDCH_60kbps 600
    DPDCH_120kbps 1200
    DPDCH_240kbps 2400
    DPDCH_480kbps 4800
    DPDCH_960kbps 9600
  3. Mp × Np tokens of each signal at pin in are one frame bit sequence of each transport channel. Every 10 ms, these radio frames are serially multiplexed into one frame of coded composite transport channel (CCTrCH). Because of variable rate transmission, in one frame of each transport channel (Mp × Np tokens), only inSize tokens are useful.
    For downlinks, there are two types of transport channels positions in one frame of CCTrCH: fixed and flexible. Fixed position means a fixed number of bits are reserved for each transport channel. With fixed positions, after serially concatenating one frame of useful data in each transport channel, data completely fills one CCTrCH frame. With flexible positions, data may not completely fill one frame of CCTrCH; in this case, discontinuous transmission indication bits are inserted that indicate when transmission power is to be turned off.
    For uplinks, the data after serially concatenating one frame of each transport channel completely fills one frame of CCTrCH; there are no discontinuous transmission indication bits.

References
  1. 3GPP Technical Specification TS 25.211 V3.0.0, "Physical channels and mapping of transport channels onto physical channels (FDD)," October 1999.
  2. 3GPP Technical Specification TS 25.212 V3.0.0, "Multiplexing and channel coding (FDD)," October 1999.
  3. 3GPP Technical Specification TS 25.302 V3.1.0, "Services provided by the Physical Layer," October 1999.
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