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3GPPFDD_TestModel4



Description: Signal source to simulate test model 4
Library: 3GPPFDD, Base Station
Class: SDF3GPPFDD_TestModel4
Derived From: 3GPPFDD_TestModelBase

Parameters

Name

Description

Default

Unit

Type

Range

SpecVersion

version of specifications: Version_03_00, Version_12_00, Version_03_02

Version_12_00

 

enum

 

ScrambleCode

index of scramble code

0

 

int

[0:512] for downlink;
[0, 16777215] for uplink

ScrambleOffset

scramble code offset

0

 

int

[0:15]

ScrambleType

scramble code type: normal, right, left

normal

 

enum

 

EnableP_CPICH

enable primary CPICH?: NO, YES

YES

 

enum

 

PCCPCH_SCH_Gain

PCCPCH_SCH level setting

-6

dB

real

(∞, ∞)

P_CPICH_Gain

P_CPICH level setting

-6

dB

real

(∞, ∞)

Pin Outputs

Pin

Name

Description

Signal Type

1

out

output data

complex

Notes/Equations
  1. This model simulates test model 4, as defined in 3GPP specification, for EVM measurement.
    Test Model 4 Active Channels

    Type

    Number of Channels

    Fraction of Power (%)

    Level Setting (dB)

    Channelization Code

    Timing offset (x256Tchip)

    PCCPCH+SCH when Primary CPICH is disabled

    1

    50 to 1.6

    -3 to -18

    1

    0

    PCCPCH+SCH when Primary CPICH is enabled

    1

    25 to 0.8

    -6 to -21

    1

    0

    Primary CPICH

    1

    25 to 0.8

    -6 to -21

    0

    0

  2. P-CCPCH The aggregate 15 × 18 = 270 P-CCPCH bits per frame are filled with a PN9 sequence generated using the primitive trinomial. The P-CCPCH channelization code is used as the seed for the PN sequence at the start of each frame. The generator is seeded so that the sequence begins with the 8-bit channelization code starting from the LSB and followed by 1.
  3. SCH The scrambling code defines the SSC sequence of the secondary SCH. In their active parts, primary and secondary SCHs share equally the power level defined for PCCPCH + SCH.

References
  1. 3GPP Technical Specification TS 25.141 V3.9.0, Base station conformance testing (FDD), March 2003, Release 1999.

    http://www.3gpp.org/ftp/Specs/2002-03/R1999/25_series/25141-390.zip

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