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3GPPFDD_RF_PCDE



Description: 3GPP peak code domain error measurements
Library: 3GPPFDD, Measurement
Class: TSDF3GPPFDD_RF_PCDE

Parameters

Name

Description

Default

Unit

Type

Range

SpecVersion

version of specifications: Version_03_00, Version_12_00, Version_03_02

Version_12_00

 

enum

 

RLoad

input resistance

DefaultROut

Ohm

real

(0, ∞)

RTemp

temperature of resistor, in celsius

DefaultRTemp

 

real

[-273.15, ∞)

ExcessBW

excess bandwidth of raised cosine filters

0.22

 

real

(0.0:1.0)

FilterLength

length of raised cosine filters in number of symbols

16

 

int

[1:inf]

SamplesPerChip

samples per chip

8

 

int

[1:256]

LinkDir

link direction: Downlink, Uplink

Uplink

 

enum

 

ScrambleCode

index of scramble code

0

 

int

[0:511] for downlink;
[0:16777215] for uplink

ULScrambleType

uplink scramble code type: LONG, SHORT

LONG

 

enum

 

ScrambleOffset

scramble offset in downlink channels

0

 

int

[0:15]

DLScrambleType

downlink scramble code type: Normal, RightAlternate, LeftAlternate

Normal

 

enum

 

SpreadCode

index of spread code

0

 

int

[0:255] for uplink DPCCH;
[0:SF-1] for downlink;
SF is set by SlotFormat

SlotFormat

slot format

0

 

int

[0:5] for uplink DPCCH;
[0:16 ] for downlink DPCH

StartSlot

number of slot to be ignored

0

 

int

[0, ∞)

SCH

switch for SCH: OFF, ON

ON

 

enum

 

CPICH

switch for CPICH: OFF, ON

OFF

 

enum

 

DUT_DelayBound

Search length

.00001 sec

sec

real

(0:(400.0/3840000))

Correct_IQ_Offset

switch for IQ offset correction: NO, YES

YES

 

enum

 

CodeLayer

the code layer to calculate the peak code error

8

 

int

[2:9]

Pin Inputs

Pin

Name

Description

Signal Type

1

RFin

input RF signal

timed

2

RefIn

reference signal for EVM

complex

Notes/Equations
  1. This subnetwork model is used to measure code domain error for a 3GPP FDD transmitter.
    The schematic for this subnetwork is shown in the following figure.

  2. The code domain error is measured by comparing the reference signals with the test signals. The difference between the test and reference signals is projected on the code domain to determine the code domain error distribution. The peak error is identified on data display sheet using equation expressions.
    A root-raised cosine filter is placed before each test and reference signal.
  3. Refer to 3GPPFDD_CodeDomainErrror_NonSyn for more information.
  4. Use of this model is demonstrated in base station and user equipment transmitter examples: File > Example Project > WCDMA3G > WCDMA3G_BS_Tx_prj > BS_Tx_Pk_Code_Error.dsn and WCDMA3G_UE_Tx_prj > UE_Tx_Pk_Code_Error.dsn. Simulation results are provided in Data Display windows for these designs.
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