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3GPPFDD_ULPhyCHSeg



Description: Uplink physical channel segmentation
Library: 3GPPFDD, TrCH Multiplexers & Coders
Class: SDF3GPPFDD_ULPhyCHSeg
Derived From: 3GPPFDD_ULCCTrCHBase

Parameters

Name

Description

Default

Unit

Type

Range

SpecVersion

version of specifications: Version_03_00, Version_12_00, Version_03_02

Version_12_00

 

enum

 

TrCHNum

number of Transport Channels

1

 

int

[1:32]

RMArray

rate matching attributes of all Transport Channels

1.0

 

real array

(0.0:1.0] if SpecVersion=Version_03_00;
[1:256] if SpecVersion=others;
array size shall be equal to TrCHNum

DynTFSetArray

dynamic part of TF set of all Transport Channels

244 976

 

int array

range is the same as DynTFSet in 3GPPFDD_CRCEncoder

TFSetSizeArray

Transport Format set size of all Transport Channels

1

 

int array

[1, inf) for each element;
sum of the elements shall be equal to the number of pairs in DynTFSetArray;
array size shall be equal to TrCHNum

TTIArray

Transmission Time Interval of all Transport Channels

0

 

int array

[0,1,2,3] for each element;
array size shall be equal to TrCHNum

CRCArray

number of CRC bits of all Transport Channels

3

 

int array

[0,1,2,3,4] for each element;
array size shall be equal to TrCHNum

CHCodingTypeArray

channel coding type of all Transport Channels

1

 

int array

[0,1,2] for each element;
array size shall be equal to TrCHNum

TrCHType

transport channel type: RACH_Type, DCH_Type

DCH_Type

 

enum

 

PuncLimit

puncturing limit for uplink

0.8

 

real

(0.0:1]

MinSF

minimum spreading factor: SF_256, SF_128, SF_64, SF_32, SF_16, SF_8, SF_4

SF_4

 

enum

 

Pin Inputs

Pin

Name

Description

Signal Type

1

DataIn

input data

int

2

PCNin

physical channel number

int

3

SltFin

slot format

int

Pin Outputs

Pin

Name

Description

Signal Type

4

PCNout

physical channel number

int

5

SltFout

slot format

int

6

DataOut

output data

multiple int

Notes/Equations
  1. This model is used to implement uplink physical channel segmentation. When more than one PhCH is used, physical channel segmentation divides the bits among the different PhCHs. Bits input to the physical channel segmentation are denoted by x 1, x 2, x 3, ... , xY, where Y is the number of bits input to the physical channel segmentation block. The number of PhCHs is denoted by P.
    The bits after physical channel segmentation are denoted up 1, up 2, up 3, ... , upU, where p is PhCH number and U is the number of bits in one radio frame for each PhCH, i.e.

    .

    The relation between xk and upk is given next.
    For all modes, some bits of the input flow are mapped to each code until the number of bits on the code is V. For modes other than compressed mode by puncturing, all bits of the input flow are taken to be mapped to the codes. For compressed mode by puncturing, only the bits of the input flow not corresponding to bits p are taken to be mapped to the codes, each bit p is removed to ensure creation the gap required by the compressed mode, as described next.
    Bits on first PhCH after physical channel segmentation:

    u 1,k = xi,k k = 1, 2, ... , U

    Bits on second PhCH after physical channel segmentation:

    u 2,k = xi,k+U k = 1, 2, ... , U
    .
    .
    .

    Bits on the Pth PhCH after physical channel segmentation:

    uP,k = xi,k + (P-1)U k = 1, 2, ... , U

  2. This model fires once per radio frame. Each firing, this model receives a data block of one CCTrCH at pin DataIn, and receives slot format and physical channel number at pins SltFin and PCNin. This model will divide the input data block if physical channel number is more than one, then output resulting data blocks through multiple output pin DataOut. Slot format and physical channel number will be output through pin SltFout and PCNout.
  3. All transport channel information must be in the form of arrays.
    The DynTFSetArray parameter requires an integer array. The correct format is transport block size 1, transport block set size 1, transport block size 2, transport block set size 2 , etc. The size of this array must be a multiple of 2, and the transport block set size must be a multiple of the relative transport block size.
    TFSetSizeArray indicates how many pairs of transport block and transport block set sizes are contained in a certain transport channel. For example:
    • TFSetSizeArray = "3 2" means the first three pairs of transport block size and transport block set size belong to the first transport channel, and the next two pairs belong to the second transport channel.
    • TFSetSizeArray = "2 2 2" means the first two pairs of transport block size and transport block set size belong to the first transport channel, the next two pairs belong to the second transport channel and the last two pairs belong to the third transport channel.
    When setting TTIArray, CRCArray and CHCodingTypeArray values, refer to the following table.

    TTIArray CRCArray CHCodingTypeArray
    Time Value Coding Value Coding Value
    10 msec 0 No CRC 0 No Coding 0
    20 msec 1 8 bits 1 1/2 CC 1
    40 msec 2 12 bits 2 1/3 CC 2
    80 msec 3 16 bits 3 1/3 TC 3
        24 bits 4    
    CC = convolutional coding; TC = turbo coding
  4. The PuncLimit parameter denotes the variable PL defined in [1]. Refer to [1] for the details regarding the use of this variable in rate matching algorithm.

References
  1. 3GPP Technical Specification TS 25.212 V3.9.0, Multiplexing and Channel Coding (FDD) 2002-03, Release 1999.

    http://www.3gpp.org/ftp/Specs/2002-03/R1999/25_series/25212-390.zip

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