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