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WCDMA3G_ChannelDecoding


Description: Channel decoding
Library: 3GPPFDD 10-99, Channel Coding
Class: SDFWCDMA3G_ChannelDecoding

Parameters

Name

Description

Default

Type

LinkDir

link direction: Downlink, Uplink

Downlink

enum

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

Pin Inputs

Pin

Name

Description

Signal Type

1

in

input code block

real

2

TF

input transport format

int

3

CurSize

size of current input block

int

Pin Outputs

Pin

Name

Description

Signal Type

4

out

output encoded code block

int

Notes/Equations
  1. This subnetwork model is used to perform channel decoding.
    • When LinkDir is set to DownLink and TrCHType is set to DCH_8_kbps, no coding is decoded.
    • When LinkDir is set to UpLink and TrCHType is set to DCH_8kbps, convolutional coding is decoded.
    • When TrCHType is set to DCH_16_kbps, DCH_32_kbps, DMCH_2_4_kbps, DMCH_12_2_kbps, BCH_11_1_kbps or BCH_12_3_kbps, convolutional coding is decoded.
    • When TrCHType is set to DCH_64_kbps, DCH_128_kbps, DCH_256_kbps, DCH_512_kbps, DMCH_64_kbps, DMCH_144_kbps, DMCH_384_kbps, turbo coding is decoded.
      The schematic for this subnetwork is shown in the following figure.

      WCDMA3G_ChannelDecoding Schematic

References
  1. 3GPP Technical Specification TS 25.101 V3.1.0 "UE Radio transmission and Reception FDD," December 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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