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WCDMA3G_UpLkTrCHDecoding


Description: Uplink transport channel decoding
Library: 3GPPFDD 10-99, Base Station
Class: SDFWCDMA3G_UpLkTrCHDecoding

Parameters

Name

Description

Default

Sym

Type

Range

TrCHNum

number of transport channels to be multiplexed in one CCTrCH

1

Nt

int

[1, ∞)

TrCHNo

current transport channel number

1

 

int

[1, Nt -1]

TrCHType

transport channel type: DCH_8_kbps, DCH_16_kbps, DCH_32_kbps, DCH_64_kbps, DCH_128_kbps, DCH_256_kbps, DCH_512_kbps, DMCH_2_4_kbps, DMCH_12_2_kbps, DMCH_64_kbps, DMCH_144_kbps, DMCH_384_kbps, DMCH_2048_kbps, BCH_11_1_kbps, BCH_12_3_kbps

DCH_8_kbps

 

enum

 

TTI

transmission time interval: TTI_10ms, TTI_20ms, TTI_40ms, TTI_80ms

TTI_10ms

 

enum

 

TrCHPosInCCTrCH

transport channel position indicator in one frame of CCTrCH: Fixed, Flexible

Fixed

 

enum

 

PhyCHNum

number of physical channels

1

 

int

[1, ∞)

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

 

RadioFrameDelayOn

radio frame delay on: Yes, No

Yes

 

enum

 

Pin Inputs

Pin

Name

Description

Signal Type

1

TFMax

maximum transport format for current service

int

2

in

input data

real

3

InSize

size of current input block

int

4

TF

input transport format

int

5

TFCI

input TFCI information

int

Pin Outputs

Pin

Name

Description

Signal Type

6

DecoderInput

decoder input data

real

7

Out

output data

int

8

CRCError

CRC error indicator

int

9

TFOut

output transport format

int

Notes/Equations
  1. This subnetwork model is used to perform downlink transport channel decoding.
    The schematic for this subnetwork is shown in the following figure. It includes radio frame delay, rate dematching, radio frame desegmentation, first de-interleaving, radio frame de-equalization, channel decoding, code block concatenation, and CRC checking.
    This subnetwork model performs the inverse function of the WCDMA3G_UnLkTrCHCoding subnetwork model.

    WCDMA3G_UpLkTrCHDecoding Schematic

References
  1. 3GPP Technical Specification TS 25.212 V3.0.0, "Multiplexing and channel coding (FDD)," October 1999.
  2. 3GPP Technical Specification TS 34.121 V3.0.0 "Terminal conformance Specification: Radio transmission and reception (FDD)," March 2000.
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