Agilent E4430B Users and Programming Guide

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User’s and Programming Guide

Agilent Technologies

ESG Family Signal Generators

Option 100 - Volume 1

W-CDMA (Rev. 1.0–1.2) Personality

Serial Number Prefixes:

(Affix Label Here)

Part No. E4400-90329

Printed in USA

April 2002

Supersedes June 2001

Contents

1. The W-CDMA (Rev. 1.0-1.2) Personality

Ensure you have the correct guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Revision Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

2. Using Functions

Table Editor Basics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

Using W-CDMA (Rev. 1.0-1.2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Accessing the W-CDMA Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Selecting Predefined Channel Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Forward Link Predefined Channel Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Reverse Link Predefined Channel Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Selecting a Forward Link Predefined Channel Configuration . . . . . . . . . . . . . . . . . . . . . . .2-5

Selecting a Reverse Link Predefined Channel Configuration . . . . . . . . . . . . . . . . . . . . . . .2-6

Modifying Forward Link Channel Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8

Inserting Additional Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8

Editing Forward Link Channel Values in the Table Editor . . . . . . . . . . . . . . . . . . . . . . . .2-11

Modifying Reverse Link Channel Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14

Inserting Additional Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14

Editing Reverse Link Channel Values in the Table Editor. . . . . . . . . . . . . . . . . . . . . . . . .2-17

Storing a Custom W-CDMA State to Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19

Creating, Storing, & Recalling a Custom Multicarrier W-CDMA Waveform . . . . . . . . . . . .2-21

Opening the Multicarrier W-CDMA Setup Table Editor . . . . . . . . . . . . . . . . . . . . . . . . . .2-21

Modifying a Multicarrier W-CDMA 4-Carrier Template . . . . . . . . . . . . . . . . . . . . . . . . . .2-22

Activating a Custom Multicarrier W-CDMA Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23

Storing a Custom Multicarrier W-CDMA Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-24

Recalling a Custom Multicarrier W-CDMA Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-24

Identifying and Resolving Code Domain Conflicts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25

Identifying Conflicts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25

Resolving Conflicts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-26

Outputting a W-CDMA Waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-27

Setting the Carrier Frequency and Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-27

Generating the W-CDMA Waveform and Enabling the RF Output. . . . . . . . . . . . . . . . . .2-28

Clipping the W-CDMA Waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-28

Creating a User-Defined FIR Filter Using the FIR Table Editor . . . . . . . . . . . . . . . . . . . . .2-30

Accessing the Table Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-30

Entering the Coefficient Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-31

Duplicating the First 16 Coefficients Using Mirror Table . . . . . . . . . . . . . . . . . . . . . . . . .2-32

Setting the Oversample Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32

Displaying a Graphical Representation of the Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-33

Storing the Filter to Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-34

Modifying an FIR Filter Using the FIR Table Editor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-35

Loading the Default Gaussian FIR File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-35

Modifying the Coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-36

Storing the Filter to Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-37

Applying a User-Defined FIR Filter to a W-CDMA Waveform . . . . . . . . . . . . . . . . . . . . . . .2-38

3. Softkey Reference

Mode Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

iii

Contents

n ksps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

1 DPCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

2 Carriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

2.500 MHz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3 Carriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

3 DPCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

4 Carriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

8.000 MHz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

250 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Adjust Code Domain Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

APCO 25 C4FM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Apply Channel Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

Apply Multicarrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Apply To Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

ARB Reference Ext Int. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Chip Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Clip |I+jQ| To . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Clip |I| To . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Clip |Q| To. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Clip At PRE POST FIR Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Clipping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Clipping Type |I+jQ| |I|,|Q| . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Custom W-CDMA Carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Custom W-CDMA Multicarrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Custom W-CDMA State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Define User FIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Delete All Rows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Delete File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Delete Row . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Display FFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Display Impulse Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

DPCCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

DPCCH + 1 DPDCH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

DPCCH + 2 DPDCH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

DPCCH + 3 DPDCH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

DPCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

DPDCH Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Edit Channel Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12

Edit Item. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Equal Energy per Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Ext . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Ext Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Ext Delay Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Ext Polarity Neg Pos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13

Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Filter Alpha . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Filter BbT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Filter Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Contents

Filter Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15

First Spread Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16

Gate Active . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16

Gated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16

Gaussian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

Goto Bottom Row . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

Goto Middle Row . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

Goto Row . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

Goto Top Row. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

Hamming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

Hann . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

I/Q Mapping Normal Invert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

Insert DPDCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

Insert Row . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19

IS-2000 SR3 DS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19

IS-95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19

IS-95 and IS-2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19

IS-95 Mod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19

IS-95 Mod w/EQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

IS-95 w/EQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

Kaiser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

Link Forward Reverse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

Load Default FIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

Load From Selected File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

Load/Store . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

Mirror Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

Modify All Scramble Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

Multicarrier Define . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Multicarrier Off On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Multiple Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

None . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

Nyquist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

Optimize FIR For EVM ACP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

Oversample Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Page Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Page Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Perch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Perch + 1 DPCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25

Perch + 3 DPCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25

Perch + 50 DPCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25

Plot CCDF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26

Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26

Random . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26

Reconstruction Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-27

Rectangle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-27

Reference Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-27

Restore Default Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-28

Retrigger Mode Off On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-28

Root Nyquist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-28

Scale To 0dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-29

Scramble Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-29

Contents

Second DPDCH I Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Select File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Single . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Spread Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Store Custom Multicarrier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Store Custom W-CDMA State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Store To File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Symbol Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

TFCI Field Off On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Through. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Trigger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Trigger Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Trigger Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Trigger Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

UN3/4 GSM Gaussian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

User FIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Waveform Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-34

WCDMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

W-CD M A (R ev 1 .0

W-CDMA Define . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-34

W-CDMA Off On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-35

W-CDMA Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-35

Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

−1.2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

4. Operation

W-CDMA Frame Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Forward Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Reverse Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Understanding TPC Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Understanding TFCI, TPC, and Pilot Power Offsets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Understanding Baseband Clipping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

How Power Peaks Develop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

How Peaks Cause Spectral Regrowth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

How Clipping Reduces Peak-to-Average Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

FIR Filtering Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

How Clipping Differs from Symbol Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

5. Remote Programming

W-CDMA Subsystem SCPI Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Apply Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

ARB Reference Internal External . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Channel Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Chip Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Clipping Level, |I+jQ|. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

Clipping Level, |I|. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Clipping Level, |Q| . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Clipping, Pre/Post FIR Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Clipping, Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Contents

Code Domain Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4

External Trigger Delay State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5

External Trigger Delay Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5

External Trigger Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5

Filter Alpha . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5

Filter BbT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6

Filter Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6

Filter Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6

Gate Active . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7

I/Q Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7

Link Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7

Multicarrier, Define. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8

Multicarrier, Select Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8

Multicarrier, Store Custom. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9

Reconstruction Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9

Reference Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9

Retrigger Mode State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10

Scramble Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10

Second DPDCH Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10

TFCI Field State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10

Trigger Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10

Trigger Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11

User FIR Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11

W-CDMA Link Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11

W-CDMA State, On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12

W-CDMA State, Store Custom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12

6. Programming Command Cross-Reference

vii

Contents

viii

ESG Family Signal Generators

Option 100

1 The W-CDMA (Rev. 1.0-1.2) Personality

This guide provides information specific to the Option 100 W-CDMA (Rev. 1.0-1.2) personality. This chapter contains an overview of Option 100.

NOTE This option requires the installation of Option UND, Dual Arbitrary

Waveform Generator. Refer to the Option UND user’s and programming guide for information.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 1-1

The W-CDMA (Rev. 1.0-1.2) Personality ESG Family Signal Generators

Ensure you have the correct guide Option 100

Ensure you have the correct guide

The Option 100 ESG Family Signal Generator includes two different implementations of the W-CDMA personality. Therefore, two user’s and programming guides (one for each implementation) are supplied for Option 100. Read the following descriptions to ensure you have the correct guide for the W-CDMA personality you require.

Volume 1 (this guide) contains information specific to the W-CDMA (Rev. 1.0-1.2) personality, which is based on the March 1999 ARIB 1.0-1.2 specification.

Volum e 2 contains information specific to the W-CDMA (3GPP 3.5 03-01) personality, which implements a chip rate of 3.84 Mcps, and is based on the March 2001 3GPP 3.5 specification.

1-2

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators The W-CDMA (Rev. 1.0-1.2) Personality

Option 100 Overview

Overview

The Option 100 ESG Family Signal Generator is a multichannel, wideband code division multiple access (W-CDMA) stimulus intended for base station and mobile testing. Option 100 enables you to generate forward and reverse link signals consistent with the developing W-CDMA (Revision 1.0-1.2) system specifications. You can create user-defined custom signals using a simple table-based channel editor.

Option 100 includes:

• multichannel W-CDMA forward link 2nd reverse link signals

• multicarrier (up to 4) W-CDMA forward link signals

• OCQPSK (HPSK) spreading/modulation type used in reverse link

• baseband clipping: clip the composite I/Q waveform or I and Q separately; choose either pre- or post-FIR filter clipping

• control over power level of TFCI, TPC, and pilot symbols relative to data

• transmitted chip rates of 4.096, 8.192, and 16.384 Mcps

• select from predefined W-CDMA channels or use the table editor to fully configure a W-CDMA signal waveform per your requirements

NOTE Specifications for Option 100 are located in the technical specifications

document.

Revision Numbers

The firmware personality of the Option 100 signal generator is based on continually developing W-CDMA international standards. Therefore, the firmware is upgraded periodically to stay current with these standards. For identification purposes, a revision number is assigned to each release of the Option 100 personality. The revision number appears in softkey menus, status displays, and this guide. This guide describes the features associated with revision 1.0-1.2 of the Option 100 W-CDMA personality.

Block Diagrams

Figure 1-1 on page 1-4 and Figure 1-2 on page 1-5 show the forward and reverse link

channel structures supported by Option 100.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 1-3

The W-CDMA (Rev. 1.0-1.2) Personality ESG Family Signal Generators

Overview Option 100

Figure 1-1 Option 100 Forward Link Channel Structure

1-4

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators The W-CDMA (Rev. 1.0-1.2) Personality

Option 100 Overview

Figure 1-2 Option 100 Reverse Link Channel Structure

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 1-5

The W-CDMA (Rev. 1.0-1.2) Personality ESG Family Signal Generators

Overview Option 100

1-6

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators

Option 100

2 Using Functions

This chapter contains instructions for using the features associated with the Option 100 W-CDMA (Rev. 1.0-1.2) personality.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-1

Using Functions ESG Family Signal Generators

Table Editor Basics Option 100

Table Editor Basics

Option 100 provides several table editors that enable you to:

• modify W-CDMA forward link channel configurations (for details, see page 2-8)

• modify W-CDMA reverse link channel configurations (for details, see page 2-14)

• create a custom multicarrier waveform (for details, see page 2-21)

• create a user-defined FIR filter (for details, see page 2-30)

• modify a user-defined FIR filter (for details, see page 2-35)

While each of these table editors performs a different function, they are all used in a similar manner, and most of the table editors have several editing softkeys in common.

Common Edit Functions

Edit Item Enables you to use the front panel knob and arrow keys to edit the value of

a selected entry. After highlighting the value you want to edit, press this softkey.

Insert Row Inserts a row for data above the currently selected row. Delete Row Deletes the currently selected row of data. Goto Row Displays a new page of softkeys so that you can quickly move to the first,

middle, or last row of data. This is especially helpful in a large table, or when using the filter table editor mirror function.

Load Default FIR

Enables you to reset factory default values for a FIR filter.

Load/Store Displays a new page of softkeys that enables you to load data from a stored

file, save data to a file, or delete a stored file.

Delete All Rows Clears all data from a table.

CAUTION There is no “undo” command. Once you delete data from a table, you

cannot retrieve it.

2-2

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Using Functions

Option 100 Using W-CDMA (Rev. 1.0-1.2)

Using W-CDMA (Rev. 1.0-1.2)

This chapter describes how to set up a waveform using predefined and user-defined channels. You will learn how to perform the following:

• select channels

• modify channels

• activate the modulation and RF output

• use multicarrier waveforms

• Identify and resolve code domain conflicts

• create filters

• modify filters

Accessing the W-CDMA Menu

Use the following procedure to access the W-CDMA personality.

1. Press

2. Press

3. Press

4. Press

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats. W-CDMA (Rev 1.0-1.2) to display the W-CDMA menu. The first page of W-CDMA

softkeys is displayed on the right side of the display. The center text area of the display shows the status of W-CDMA configuration. These characteristics are immediately updated when you modify them in the softkey menus.

Text Area Showing Configuration Status

Softkey Menu

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-3

Using Functions ESG Family Signal Generators

Selecting Predefined Channel Configurations Option 100

Selecting Predefined Channel Configurations

The ESG-D Option 100 signal generator contains predefined channel setups for both forward and reverse link waveform generation.

Forward Link Predefined Channel Configurations

There are six predefined channel configurations for forward link:

•1 DPCH

•3 DPCH

•Perch

•Perch plus 1 DPCH

•Perch plus 3 DPCH

• Perch plus 50 DPCH

Reverse Link Predefined Channel Configurations

There are four predefined channel configurations for reverse link:

• DPCCH

• DPCCH plus 1 DPDCH

• DPCCH plus 2 DPDCH

• DPCCH plus 3 DPDCH

The default predefined channel configuration is one dedicated physical channel (1 DPCH) in the forward link mode. Predefined channel configurations can be used as defined, or modified using the channel table editor. See “Modifying Forward Link Channel

Configurations” on page 2-8 for more information.

The following procedures explain how to select predefined channel setups for both forward and reverse link waveform configurations.

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Option 100 Selecting Predefined Channel Configurations

Selecting a Forward Link Predefined Channel Configuration

Perform the following procedure to select forward link predefined channel configurations.

1. Press

2. Press

3. Press

4. Press

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats. W-CDMA (Rev 1.0-1.2) to display the W-CDMA menu. Notice that the default

predefined channel selection for forward link the softkey menu. The text area displays configuration, as shown in the following figure.

(1 DPCH) appears below W-CDMA Select in

FWD WCDMA Setup: 1 DPCH as the current

5. Press

W-CDMA Select to display the W-CDMA Setup selection menu for forward link, as

shown in the following figure.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-5

Using Functions ESG Family Signal Generators

Selecting Predefined Channel Configurations Option 100

6. Press Perch + 3 DPCH to select perch plus three dedicated physical channels.

(Perch + 3 DPCH) appears below W-CDMA Select in the softkey menu. The text area

displays

FWD WCDMA Setup: Perch + 3 DPCH as the current configuration, as shown in

the following figure.

Selecting a Reverse Link Predefined Channel Configuration

Perform the following procedure to select reverse link predefined channel configurations.

1. Press

2. Press

3. Press

4. Press

5. Press selection for reverse link text area displays the following figure.

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats. W-CDMA (Rev 1.0-1.2) to display the W-CDMA menu. Link Forward Reverse until Reverse highlights. The default predefined channel

(DPCCH) appears below W-CDMA Select in the softkey menu. The

RVS WCDMA Setup: DPCCH as the current configuration, as shown in

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Option 100 Selecting Predefined Channel Configurations

6. Press W-CDMA Select to display the W-CDMA Setup selection menu for reverse link, as

shown in the following figure.

7. Press dedicated physical data channels. the softkey menu. The text area displays

DPCCH + 3 DPDCH to select a dedicated physical control channel plus three

(DPCCH + 3 DPDCH) appears below W-CDMA Select in

RVS WCDMA Setup: DPCCH+3DPDCH as the

current configuration, as shown in the following figure.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-7

Using Functions ESG Family Signal Generators

Selecting Predefined Channel Configurations Option 100

Modifying Forward Link Channel Configurations

You can modify forward link channel configurations using the channel setup table editor. The following examples show you how to modify predefined channel setups for forward link waveform configurations. Refer to “Table Editor Basics” on page 2-2 for additional information about table editors.

CAUTION Unless previously saved to the signal generator’s memory catalog,

modifications made to predefined channel configurations are lost when changes are made to link direction.

To store a custom W-CDMA state, see “Storing a Custom W-CDMA

State to Memory” on page 2-19.

Inserting Additional Channels

The default forward link channel setup is one dedicated physical channel (1 DPCH). The maximum number of forward link channels allowed in the channel table editor is 512.

In the following sections, examples are provided for inserting DPCH and perch channels into the forward link configuration.

Inserting Additional DPCH Channels

In this example, 20 additional DPCH channels are inserted into the default predefined forward link configuration.

1. Press

2. Press

3. Press

4. Press

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats. W-CDMA (Rev 1.0-1.2) to display the W-CDMA menu.

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W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Using Functions

Option 100 Selecting Predefined Channel Configurations

5. Press W-CDMA Define > Edit Channel Setup to display the channel table editor, as shown in the following figure. The horizontal scroll bar at the bottom of the screen indicates that there are more columns to the right of the

Data column. Use the right arrow key to

move the cursor to view the additional columns.

6. Press

Enter softkey.

7. Press

Insert Row > Multiple Channels > Channels and enter 20. Terminate the entry with the

Done. The channel table editor now contains the 20 additional channels, as shown

in the following figure. Notice that the page only displays six channels. To see the additional channels, press

8. Press

FWD WCDMA Setup:1 DPCH (Modified) as the current configuration.

Return until the status screen appears. The text area displays

Return > Goto Row > Page Up.

To store a custom W-CDMA state, see “Storing a Custom W-CDMA State to Memory” on page 2-19.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-9

Using Functions ESG Family Signal Generators

Selecting Predefined Channel Configurations Option 100

Inserting a Perch Channel

After a normal instrument preset, the W-CDMA default forward link setup consists of one DPCH channel. In this example, a perch channel is inserted before the DPCH channel.

1. Press

2. Press

3. Press

4. Press

5. Press

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats. W-CDMA (Rev 1.0-1.2) to display the W-CDMA menu. W-CDMA Define > Edit Channel Setup to display the channel table editor, as shown in

the following figure. Use the front panel knob or arrow keys to move the cursor to table row 1.

6. Press

Insert Row > Perch. A perch channel is now inserted in the channel table editor, as

shown in the following figure.

7. Press

FWD WCDMA Setup: 1 DPCH (Modified) as the current configuration.

Return until the status screen appears. The text area displays

To store a custom W-CDMA state, see “Storing a Custom W-CDMA State to Memory” on page 2-19.

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Option 100 Selecting Predefined Channel Configurations

Editing Forward Link Channel Values in the Table Editor

You can use the channel setup table editor to modify forward link configuration values in the following columns:

Rate ksps - symbol rate in kilosymbols-per-second

•

Spread Code

•

• Power dB - channel power in decibels

Symbol Offset

•

• TFCI - transport format combination indicator

•

TPC - transmit power control in hexadecimal Scramble Code

•

• Data - specific or random data

•

TFCI Power - power offset in decibels TPC Power - power offset in decibels

•

Pilot Power - power offset in decibels

Highlight the value you wish to change using the front panel arrows or knob, then enter the new value using the numeric keypad.

In the following example, you will edit the

TPC, TFCI Power, TPC Power, and Pilot Power

fields of the default predefined channel selection for forward link, which is one dedicated physical channel (1 DPCH).

1. Press

2. Press

3. Press

4. Press

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats. W-CDMA (Rev 1.0-1.2) to display the W-CDMA menu. The default predefined channel

selection for forward link is 1 DPCH.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-11

Using Functions ESG Family Signal Generators

Selecting Predefined Channel Configurations Option 100

5. Press W-CDMA Define > Edit Channel Setup to display the channel table editor, as shown in

the following figure. Use the front panel knob or arrow keys to move the cursor to table row 1.

6. Use the right arrow key to highlight the

NOTE TPC values are entered as hexadecimal digits (0-9, A-F). For

TPC value. AAAA should be highlighted.

information on what these values represent, refer to “Understanding

TPC Values” on page 4-5.

7. Press

8. Press row in the

Edit Item and enter FF00 using the letter softkeys and numeric keypad. Enter. The TPC value has now been modified and the cursor has moved to the next

TPC column, as shown in the following figure.

9. Use the right arrow key to move the cursor to the

Pilot Power fields, which are currently hidden from view. (The horizontal scroll bar at

the bottom of the screen indicates that there are columns to the right of the

TFCI Power, TPC Power, and

Data

column.)

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Option 100 Selecting Predefined Channel Configurations

10.Use the arrow keys to highlight 0.00 dB in the TFCI Power field and press Edit Item > 2 >

dB. The TFCI power has now been offset by 2 dB and the cursor has moved to the next

row in the

TFCI Power column.

11.Use the arrow keys to highlight

dB. The TPC power has now been offset by 3 dB and the cursor has moved to the next

row in the

TPC Power column.

12.Use the arrow keys to highlight

1 > dB. The pilot power has now been offset by 1 dB and the cursor has moved to the next

row in the

Pilot Power column, as shown in the following figure.

0.00 dB in the TPC Power field and press Edit Item > 3 >

0.00 dB in the Pilot Power field and press Edit Item >

NOTE For conceptual information on TFCI, TPC, and pilot power offsets, refer

to “Understanding TFCI, TPC, and Pilot Power Offsets” on page 4-6.

13.Press

FWD WCDMA Setup: 1 DPCH (Modified) as the current configuration.

Return until the status screen appears. The text area displays

To store a custom W-CDMA state, see “Storing a Custom W-CDMA State to Memory” on page 2-19.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-13

Using Functions ESG Family Signal Generators

Modifying Reverse Link Channel Configurations Option 100

Modifying Reverse Link Channel Configurations

You can modify reverse link channel configurations using the channel setup table editor. The following examples show you how to modify predefined channel setups for reverse link waveform configurations. Refer to “Table Editor Basics” on page 2-2 for additional information about table editors.

CAUTION Unless previously saved to the signal generator’s memory catalog,

modifications made to predefined channel configurations are lost when changes are made to link direction.

To store a custom W-CDMA state, see “Storing a Custom W-CDMA

State to Memory” on page 2-19.

Inserting Additional Channels

The default reverse link channel setup after a normal instrument preset is one dedicated physical control channel (DPCCH). The DPCCH channel always occupies row 1 in the table editor and is modulated as a Q component. Any additional channels inserted into the table editor are dedicated physical data channels (DPDCH). The first DPDCH channel occupies row 2 and is modulated with an I component. The remaining channels (row 3 and greater) can be modulated with either I or Q, but no two consecutive channels are allowed to have the same component. The maximum number of reverse link channels is 16.

The following example explains how to insert DPDCH channels into the reverse link configuration.

Inserting Additional DPDCH Channels

In this example, 15 additional DPDCH channels are inserted into the default predefined reverse link configuration.

1. Press

2. Press

3. Press

4. Press

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats. W-CDMA (Rev 1.0-1.2) to display the W-CDMA menu.

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W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Using Functions

Option 100 Modifying Reverse Link Channel Configurations

5. Press Link Forward Rever se until Reverse highlights. The display reflects the change to

reverse link mode. The text area displays

RVS WCDMA Setup: DPCCH as the current

configuration, as shown in the following figure.

6. Press

W-CDMA Define > Edit Channel Setup to display the channel table editor. Use the arrow

keys to move the cursor to table row 2, as shown.

7. Press

Insert DPDCH > DPDCH Channels. To enter the value, rotate the front panel knob, use

the up and down arrow keys until the number 15 is displayed, or enter 15 using the numeric keypad. Terminate the entry with the

Enter softkey.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-15

Using Functions ESG Family Signal Generators

Modifying Reverse Link Channel Configurations Option 100

8. Press Done. The channel table editor now contains the 15 additional channels, as shown in the following figure. Notice that the first page only displays channels one through eight. To see the additional channels, press

Goto Row > Page Down.

9. Press

Second DPDCH I Q until I highlights, as shown in the following figure. Notice that

the I/Q setting for the second DPDCH channel (row 3) has changed from Q to I. Additionally, all subsequent channels have also switched I/Q settings.

10.Press

RVS WCDMA Setup: DPCCH (Modified) as the current configuration.

Return until the status screen appears. The text area displays

To store a custom W-CDMA state, see “Storing a Custom W-CDMA State to Memory” on page 2-19.

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Option 100 Modifying Reverse Link Channel Configurations

Editing Reverse Link Channel Values in the Table Editor

You can use the channel setup table editor to modify reverse link configuration values in the following columns:

Rate ksps - symbol rate in kilosymbols-per-second

•

Spread Code

•

• Power dB - channel power in decibels

TFCI - transport format combination indicator

•

TPC - transmit power control in hexadecimal

•

Data - specific or random data

Highlight the value you wish to change using the front panel arrows or knob, then enter the new value using the numeric keypad.

In the following example, you will edit the

TPC field of the default predefined channel

selection for reverse link, which is one dedicated physical control channel (1 DPCCH).

1. Press

2. Press

3. Press

4. Press

5. Press reverse link mode. The text area displays

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats. W-CDMA (Rev 1.0-1.2) to display the W-CDMA menu. Link Forward Reverse until Reverse highlights. The display reflects the change to

RVS WCDMA Setup: DPCCH as the current

configuration, as shown in the following figure.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-17

Using Functions ESG Family Signal Generators

Modifying Reverse Link Channel Configurations Option 100

6. Press W-CDMA Define > Edit Channel Setup to display the channel table editor, as shown in

the following figure.

7. Use the right arrow key to highlight the

NOTE TPC values are entered as hexadecimal digits (0-9, A-F). For

TPC value. AAAA should be highlighted.

information on what these values represent, refer to “Understanding

TPC Values” on page 4-5.

8. Press

Edit Item and enter FF00 using the letter softkeys and numeric keypad. Press Enter.

The TPC value has now been modified and the cursor has moved to the next row in the

TPC column, as shown in the following figure.

9. Press

RVS WCDMA Setup: DPCCH (Modified) as the current configuration.

Return until the status screen appears. The text area displays

To store a custom W-CDMA state, see “Storing a Custom W-CDMA State to Memory” on page 2-19.

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Option 100 Storing a Custom W-CDMA State to Memory

Storing a Custom W-CDMA State to Memory

In this procedure, you will store the custom W-CDMA state created in the previous procedure. If you have not performed the previous procedure, turn to “Editing Reverse

Link Channel Values in the Table Editor” on page 2-17 and complete this procedure before

continuing.

Use the following procedure to store and name the custom W-CDMA state to the signal generator’s memory catalog.

1. To store the custom W-CDMA state, press

Store Custom W-CDMA State. This opens a menu

that accesses the signal generator’s reverse W-CDMA (RWCDMA) memory catalog, as shown in the following figure.

NOTE The forward link W-CDMA memory catalog is named FWCDMA.

2. To name the custom W-CDMA state, press

Store to File. This opens a menu that allows

you to name the custom W-CDMA state, as shown in the following figure.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-19

Using Functions ESG Family Signal Generators

Storing a Custom W-CDMA State to Memory Option 100

3. If there is already a file highlighted in the catalog, press Editing K eys > Clear Text, then use

the alphabetic menu and the numeric keypad to enter the file name

Enter. Your custom W-CDMA state CUSTOMREV1 is now saved to the reverse W-CDMA

CUSTOMREV1. Press

memory catalog, as shown.

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Option 100 Creating, Storing, & Recalling a Custom Multicarrier W-CDMA Waveform

Creating, Storing, & Recalling a Custom Multicarrier W-CDMA Waveform

The signal generator provides a quick and easy way to create custom multicarrier W-CDMA waveforms: rather than building an entire 4-carrier setup from scratch, you can start with a 4-carrier W-CDMA template and modify the template’s default values as desired.

Use the following procedure to create, store, and recall a custom, 4-carrier W-CDMA waveform.

Opening the Multicarrier W-C DM A Set up Table Editor

1. Press Preset.

2. Press

Multicarrier Off On (until On highlights).

3. Press

4. Press

Mode > Arb Waveform Generator (if it appears) > CDMA Formats > W-CDMA (1.0-1.2) >

W-CDMA Select > 4 Carriers to select the template and return to the previous menu. Multicarrier Define to open the Multicarrier W-CDMA Setup table editor. The

4-carrier W-CDMA template is automatically placed in the table editor, as shown in the following figure.

Active Entry Area

Multicarrier W-CDMA Setup softkeys

Carrier Type

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-21

Frequency Offset Value

Power Value

Using Functions ESG Family Signal Generators

Creating, Storing, & Recalling a Custom Multicarrier W-CDMA Waveform Option 100

Modifying a Multicarrier W-CDMA 4-Carrier Template

Use the following steps to modify the standard 4-carrier W-CDMA template that was loaded in the previous procedure.

Edit the second carrier.

1. Highlight the second channel carrier (in table row 2), then press Edit Item.

2. In the menu that appears, press

3DPCH. This changes the carrier type.

3. Highlight the second carrier’s frequency offset value and press

4. Change the offset value to –625 and press

5. Highlight the second carrier’s power value and press

6. Change the power value to –10 and press

kHz.

Edit Item.

dB.

The following figure shows the edited template:

Edit Item.

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Option 100 Creating, Storing, & Recalling a Custom Multicarrier W-CDMA Waveform

Activating a Custom Multicarrier W-CDMA Setup

Using the custom 4-carrier W-CDMA setup from the previous procedure, perform the following steps to activate the custom multicarrier W-CDMA signal.

1. Press

Setup: 4 Carriers (Modified)

2. Press

Return, and note that the multicarrier setup is now displayed as Multicarrier

W-CDMA Off On until On highlights. After waveform generation, the new

multicarrier W-CDMA waveform is stored in volatile memory.

3. Press

RF On/Off. The RF ON annunciator replaces the RF OFF annunciator on the signal

generator’s display, as shown, and the modulated signal is present at the RF output.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-23

Using Functions ESG Family Signal Generators

Creating, Storing, & Recalling a Custom Multicarrier W-CDMA Waveform Option 100

Storing a Custom Multicarrier W-CDMA Waveform

Use the following procedure to store a custom multicarrier W-CDMA waveform to the signal generator’s memory. This example uses the custom 4-carrier W-CDMA waveform created in the previous procedure. If you have not created this custom multicarrier W-CDMA waveform, refer to “Creating, Storing, & Recalling a

Custom Multicarrier W-CDMA Waveform” on page 2-21.

1. In the top-level W-CDMA menu (

2. Press

Store Custom Multicarrier to display the signal generator’s catalog of multicarrier

W-CDMA Off On is the top key), press Multicarrier Define.

forward W-CDMA (MFWCDMA) files.

3. Press

Store T o File to open a file naming softkey menu of letters and symbols that you can

use to name the file.

4. As described in “Storing a Custom W-CDMA State to Memory” on page 2-19, name and store this file as

4CARRIER.

Recalling a Custom Multicarrier W-CDMA Waveform

Use the following procedure to recall the custom multicarrier W-CDMA state from the MFWCDMA memory catalog. This example recalls the custom 4-carrier W-CDMA waveform stored in the previous procedure.

1. Press

2. Press

Multicarrier Off On (until On highlights).

3. Press catalog.

4. Highlight the file waveform

Preset. Mode > Arb Waveform Generator (if it appears) > CDMA Formats > W-CDMA (Rev 1.0-1.2) >

W-CDMA Select > Custom W-CDMA Multicarrier to open the MFWCDMA memory

4CARRIER, then press Select File. The custom multicarrier W-CDMA

4CARRIER is selected

You can now use the waveform. For details, refer to “Activating a Custom Multicarrier

W-CDMA Setup” on page 2-23.

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Option 100 Identifying and Resolving Code Domain Conflicts

Identifying and Resolving Code Domain Conflicts

The code domain space of each channel is defined by the symbol rate and spread code. Code domain conflicts can arise when two channels of different rates map to the same code domain space. If code domain conflicts are present when the waveform is turned on, the conflicting channels are still generated.

NOTE Although the examples in this section use the forward link channel

configuration, the information also applies to reverse link.

Identifying Conflicts

The following figure shows two code domain conflicts. In this example, row 2 occupies the channel code domain of 0024-0031. Row 5 conflicts with row 2 by occupying the channel code domain of 0024-0027. Row 6 also conflicts with row 2 by occupying the channel code domain of 0028-0031. The conflicting channels (rows 5 and 6) are flagged (highlighted) and each flag includes the row number of the channel it conflicts with, as shown.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-25

Using Functions ESG Family Signal Generators

Identifying and Resolving Code Domain Conflicts Option 100

Resolving Conflicts

To resolve conflicts, you can change the value of the spread code. To make changes, use the table editor functions to highlight the value you want to change, then enter the new value using the front panel keys. In the following figure, the spread code for the channel in row 2 has been changed to 9 to resolve the conflicts in rows 5 and 6.

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Option 100 Outputting a W-CDMA Waveform

Outputting a W-CDMA Waveform

This section explains how to set the carrier frequency and power, generate a W-CDMA waveform, enable the modulation and the RF output, and set the waveform’s clipping parameters.

Setting the Carrier Frequency and Power

Use the following procedure to set the carrier signal’s power and frequency.

1. Press

2. Press

3. Press

4. Press

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats. W-CDMA (Rev 1.0-1.2) to display the W-CDMA menu.

5. For this example, set the RF output frequency to 2.17 GHz by pressing the front panel

Frequency key. Enter 2.17 GHz by rotating the front panel knob, using the up and down

arrow keys, or entering the value using the numeric keypad. (If using the numeric keypad to enter a new value, terminate the entry with the

6. Set the output power to

−10 dBm by pressing the front panel Amplitude key. Enter −10 by

GHz softkey.)

rotating the front panel knob, using the up and down arrow keys, or entering the value using the numeric keypad. (If using the numeric keypad to enter a new value, terminate the entry with the

dBm softkey.)

The carrier frequency and power are now set. The following figure shows the display with the current configuration.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-27

Using Functions ESG Family Signal Generators

Outputting a W-CDMA Waveform Option 100

Generating the W-CDMA Waveform and Enabling the RF Output

Use the following procedure to generate a W-CDMA waveform and activate the RF output.

1. Press generator displays a message while the waveform is being generated.) The

I/Q annunciators turn on.

2. Toggle the front panel

W-CDMA Off On until On highlights to generate the W-CDMA waveform. (The signal

WCDMA and

RF On/Off key until the display annunciator reads RF ON.

3. Modulation is turned on as a default condition. (The display annunciator shows

.) If modulation is off, toggle the front panel Mod On/Off key.

The W-CDMA signal is now present at the front panel RF OUTPUT connector. The following figure shows the display with the current configuration.

MOD

Clipping the W-CDMA Waveform

Use the following procedure to configure and apply clipping to the W-CDMA waveform.

1. Notice that in the status area of the display the current clipping setup is

PRE Clip |I+jQ|: 100.0%. A clipping level of 100 percent is equal to no clipping.

2. Press

3. The the combined I and Q waveform. Alternatively, and Q waveforms separately.

Use the default selection for this example.

4. Press

5. The clipped prior to FIR filtering. Alternatively, when you select clipped after FIR filtering. Use the default selection for this example.

2-28

W-CDMA Define > More (1 of 2) > Clipping to access the clipping setup menu.

Clipping T ype |I+jQ| |I|,|Q| softkey default is |I+jQ| (circular clipping). This selection clips

|I|,|Q| (rectangular clipping) clips the I

Clip |I+jQ| To and enter 80 percent.

Clip At PRE POST FIR Filter softkey default is PRE. With PRE selected, the waveform is

POST, the waveform is

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Using Functions

Option 100 Outputting a W-CDMA Waveform

6. Press Apply to Waveform. The signal generator rebuilds the waveform and the clipping

settings are updated in the status area of the display, as shown. For more information on clipping, refer to “Understanding Baseband Clipping” on page 4-8.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-29

Using Functions ESG Family Signal Generators

Creating a User-Defined FIR Filter Using the FIR Table Editor Option 100

Creating a User-Defined FIR Filter Using the FIR Table Editor

Using this procedure you will create and store an 8-symbol, windowed sinc function filter with an oversample ratio of 4.

Accessing the Table Editor

Use the following procedure to access the FIR filter table editor.

1. Press

2. Press

3. Press

4. Press displayed. The following figure shows the FIR table editor.

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats. W-CDMA (Rev 1.0-1.2) > W-CDMA Define > Filter > Define User FIR. The FIR table editor is

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Option 100 Creating a User-Defined FIR Filter Using the FIR Table Editor

Entering the Coefficient Values

The FIR table editor creates a filter from values that you provide.

1. Use the cursor to highlight the type the first value (

−0.000076) from the following table. As you press the numeric keys,

Value field for coefficient 0. Use the numeric keypad to

the numbers are displayed in the active entry area. (If you make a mistake, you can correct it using the backspace key.)

Press

Coefficien

0 −0.000076 8 −0.035667 1 −0.001747 9 −0.116753 2 −0.005144 10 −0.157348 3 −0.004424 11 −0.088484

4 0.007745 12 0.123414

5 0.029610 13 0.442748

6 0.043940 14 0.767329

7 0.025852 15 0.972149

Enter. The value for coefficient 0 is now displayed in the Value field, and the cursor

Value

has moved to the second row in the

Value column. The following figure shows the FIR

Coefficien

Value

table editor at this point in the process.

2. Continue entering the coefficient values from the table in step 1 until all 16 values are complete.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-31

Using Functions ESG Family Signal Generators

Creating a User-Defined FIR Filter Using the FIR Table Editor Option 100

Duplicating the First 16 Coefficients Using Mirror Table

Use the following procedure to duplicate the first 16 coefficients in the FIR filter table editor.

In a windowed sinc function filter, the second half of the coefficients are identical to the first half in reverse order. The signal generator provides a mirror table function that automatically duplicates the existing coefficient values in the reverse order.

Press

Mirror Table. The last 16 coefficients (16 through 31) are automatically generated and

the first of these coefficients (number 16) highlights. The following figure shows the display at this point in the process.

Setting the Oversample Ratio

The oversample ratio (OSR) is the number of filter taps per symbol. Acceptable values range from 1 through 32; the maximum combination of symbols and oversampling ratio allowed by the table editor is 1024. The instrument hardware, however, is actually limited to 32 symbols, an oversample ratio between 4 and 16, and 256 coefficients. So if you enter more than 32 symbols or 256 coefficients, the instrument is unable to use the filter. If the oversample ratio is different from the internal, optimally selected one, then the filter is automatically resampled to an optimal oversample ratio.

The current OSR value is shown underneath the

Oversample Ratio softkey, as shown in the

previous figure. For this example, set the OSR to 4 (if it isn’t already). Press

Oversample Ratio and use the numeric keypad to enter 4. Press the Enter softkey to terminate

the entry.

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ESG Family Signal Generators Using Functions

Option 100 Creating a User-Defined FIR Filter Using the FIR Table Editor

Displaying a Graphical Representation of the Filter

Use the following procedure to display graphical representations of the active FIR filter.

The signal generator has the capability of graphically displaying the filter in both time and frequency dimensions.

1. Press

More (1 of 2) > Display FFT to view the filter frequency response (calculated using a

fast Fourier transform). The following graph is displayed.

2. Press

3. Press

Return to return to the menu keys. Display Impulse Response to display the filter impulse response in time. The

following graph is displayed.

4. Press

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-33

Return to return to the menu keys.

Using Functions ESG Family Signal Generators

Creating a User-Defined FIR Filter Using the FIR Table Editor Option 100

Storing the Filter to Memory

The filter is now complete and can be stored to non-volatile memory for future use. At any time you can check the information at the top of the FIR table editor to determine whether the current table has been stored. Your current table should display the following text:

FIR Values (UNSTORED). If you attempt to exit the table editor mode without first storing

to a file, the signal generator first prompts you to confirm that you want to exit without storing to a file. If you do not want to exit after all, press

To store the file, perform the following steps.

Return.

1. Press

Load/Store > Store To File. The catalog of FIR files appears along with the amount of

memory available.

2. For this example, you will title the file NEWFIR1. The file name is created by pressing the softkey containing the desired character, then selecting the softkey with that character from the subsequent menu. For example, press the press the bottom softkey,

text.

to:

N. N is displayed in the active entry area following the Store

3. Continue entering the characters for the file name until

HIJKLMN softkey. Then

NEWFIR1 is displayed in the

active entry area. (Use the numeric keypad to enter the number 1.)

4. Press

Enter when the file name is complete. The contents of the current FIR table editor

are stored to a file in non-volatile memory. The following figure shows the display.

The NEWFIR1 file is the first file name listed. (If you have previously stored other FIR files, additional file names are listed below NEWFIR1.) The file type is FIR and the size of the file is 260 bytes. The amount of memory used is also displayed. The number of files that can be saved depends on the size of the files and the amount of memory used. Memory is also shared by instrument state files and list sweep files.

This filter can now be used to customize a modulation or it can be used as a basis for a new filter design. (Refer to the additional filter examples in this chapter.)

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ESG Family Signal Generators Using Functions

Option 100 Modifying an FIR Filter Using the FIR Table Editor

Modifying an FIR Filter Using the FIR Table Editor

FIR filters stored in the signal generator memory can easily be modified using the FIR table editor. You can load the FIR table editor with coefficient values from user-defined FIR files stored in the signal generator’s memory, or from one of the default FIR filters. Then you can modify the values, and store the new files. In this example, you will load the FIR table editor with the values for a default Gaussian filter and then modify it.

Loading the Default Gaussian FIR File

Use the following procedure to load the default Gaussian FIR filter into the FIR filter table editor.

1. Press

2. Press

3. Press

4. Press

5. Set the filter BbT to 0.300 (if

Filter BbT and rotate the front panel knob until 0.300 is displayed.

6. Set the number of filter symbols to 8 (if pressing

7. Press

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats > W-CDMA (Rev 1.0-1.2) > W-CDMA Define. Filter > Define User FIR > More (1 of 2) > Load Default FIR > Gaussian.

Filter BbT is not already set to this value) by pressing

Filter Symbols is not already set to this value) by

Filter Symbols and rotating the front panel knob until 8 is displayed.

Generate. The FIR table editor should now contain the coefficient values for the

specified Gaussian filter.

NOTE The actual oversample ratio during modulation is automatically

selected by the instrument. A value between 4 and 16 is chosen dependent on the symbol rate, the number of bits per symbol of the modulation type, and the number of symbols.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-35

Using Functions ESG Family Signal Generators

Modifying an FIR Filter Using the FIR Table Editor Option 100

8. Press Display Impulse Response for a graphic representation of the filter impulse response

as shown in the following figure.

9. Press

Return to return to the menu keys.

Modifying the Coefficients

Use the following procedure to modify the filter coefficients in the FIR filter table editor.

1. Highlight coefficient 15.

2. Press

0 > Enter to change the value of the coefficient to 0.

3. Press

Display Impulse Response to see the effects of the change.

The graphic display can provide a useful troubleshooting tool (in this case, it indicates that a coefficient value is missing, resulting in an improper Gaussian response).

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ESG Family Signal Generators Using Functions

Option 100 Modifying an FIR Filter Using the FIR Table Editor

4. Press Return to return to the menu keys.

5. In addition to changing existing values, you can also insert and delete rows of coefficients and change the oversample ratio. (Press

More (2 of 2) to access these softkeys.)

6. Highlight coefficient 15.

7. Press 1 > Enter. This changes coefficient 15 back to its original value.

Storing the Filter to Memory

Perform the following procedure to store the modified Gaussian filter to the signal generator’s memory catalog.

1. Press

Load/Store > Store To File. The catalog of FIR files is displayed along with the

amount of memory available.

2. Name the file NEWFIR2.

3. Press

Enter when the file name is complete. The contents of the current FIR table editor

are stored to a file in non-volatile memory, and the catalog of FIR files is updated to show the new file.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-37

Using Functions ESG Family Signal Generators

Applying a User-Defined FIR Filter to a W-CDMA Waveform Option 100

Applying a User-Defined FIR Filter to a W-CDMA Waveform

Custom FIR filters can be created using the FIR table editor feature or they can be created externally and downloaded into the signal generator memory. Once the filter is stored in memory, it can be selected for use with your custom modulation state. This example requires that at least one FIR file be already stored in memory. For an example of creating and storing a FIR filter, see “Creating a User-Defined FIR Filter Using the FIR Table

Editor” on page 2-30.

1. Press

2. Press

3. Press

4. Press

Preset. Mode > Arb Waveform Generator (if it appears). CDMA Formats. W-CDMA (Rev 1.0-1.2) > W-CDMA Define > Filter > Select > User FIR. The catalog of FIR

files should now be displayed. The following figure shows an example of the catalog.

In this example, there are two FIR files listed: NEWFIR1 and NEWFIR2. (These files were created in the previous examples.)

5. Scroll down in the list until the desired filter highlights. In this example, NEWFIR2 is the desired filter. You can use the front panel knob or the arrow keys as well as the GoTo Row function to highlight the filter.

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ESG Family Signal Generators Using Functions

Option 100 Applying a User-Defined FIR Filter to a W-CDMA Waveform

6. Press Select File . The highlighted filter is now selected for use in your custom modulation

state, as shown.

The filter you selected is NEWFIR2. You can see the name, followed by below the

Select softkey. In the Filter field, near the left of the display, User FIR is

@FIR, displayed

displayed to indicate that a user-defined FIR filter has been selected.

Once you have set the other modulation parameters to your satisfaction, turn on Custom and the RF output and your user-defined filter is in use.

NOTE The actual oversample ratio during modulation is automatically

selected by the instrument. A value between 4 and 16 is chosen dependent on the symbol rate, the number of bits per symbol of the modulation type, and the number of symbols.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 2-39

Using Functions ESG Family Signal Generators

Applying a User-Defined FIR Filter to a W-CDMA Waveform Option 100

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W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators

Option 100

3 Softkey Reference

This chapter describes the Mode hardkey and the associated softkeys used to configure and activate functions specific to the Option 100, W-CDMA (Revision 1.0-1.2) personality.

The softkeys are presented in alphanumeric order.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-1

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Mode Key

n ksps

When you press the front-panel Mode key, the softkeys that appear depend on how many options are included in the instrument. When an instrument has options in addition to the UND option, the softkey

Arb Waveform Generator provides access to all Dual Arbitrary Waveform

Generator softkeys (including the optional personalities).

The softkeys described in this chapter are available only under the

W-CDMA (Rev 1.0−1.2) softkey.

For information on the SCPI commands that duplicate these softkeys remotely, see Chapter 5, “Remote Programming,” and Chapter 6,

“Programming Command Cross-Reference.”

This key sets the symbol rate. It is used for an inserted DPCH or Spread Only forward link channel, for multiple channels in the W-CDMA Edit Channel Setup table editor, and for multiple reverse link dedicated physical data channels (DPDCH).

The values available are the following:

8 ksps 128 ksps

3-2

16 ksps 256 ksps

32 ksps 512 ksps

64 ksps 1024 ksps

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Softkey Location (Forward Link): Mode > CDMA Formats >

W-CDMA (Rev 1.0−1.2) > W-CDMA Define > Edit Channel Setup > Insert Row > DPCH (or Spread Only > or Multiple Channels > Symbol Rate)> n ksps

(See above description of (n) ksps.)

1 DPCH

2 Carriers

Softkey Location (Reverse Link):

1.0−1.2) n ksps (See above description of (n) ksps.)

> W-CDMA Define > Edit Channel Setup > Insert DPDCH > Symbol Rate >

Mode > CDMA Formats > W-CDMA (Rev

Selects a single DPCH forward link channel for either the W-CDMA setup or the carrier in the multicarrier table editor.

Softkey Location:

W-CDMA Select > 1DPCH

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Or: Mode > CDMA Formats > W-CDMA (Re v 1 .0−1.2) > Multicarrier Off On >

Multicarrier Define > Edit Item > 1DPCH

Or: Mode > CDMA Formats > W-CDMA (Re v 1 .0−1.2) > Multicarrier Off On >

Multicarrier Define > Insert Row > 1DPCH

Selects a standard 2-carrier W-CDMA setup with the settings listed below. (See also “W-CDMA Select” on page 3-35.)

Carrier 1: Perch channel,

−7.5 MHz frequency offset, 0 dB power

2.500 MHz

Carrier 2: Perch channel, 7.5 MHz frequency offset, 0 dB power

Softkey Location:

Multicarrier Off On > W-CDMA Select > 2 Carriers

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Selects a reconstruction filter with a cutoff frequency of 2.500 MHz.

Softkey Location:

CDMA Define > Reconstruction Filter > 2.500 MHz

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-3

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

3 Carriers

Selects a standard 3-carrier W-CDMA setup with the settings listed below. (See also “W-CDMA Select” on page 3-35.)

3 DPCH

4 Carriers

Carrier 1: Perch channel,

−5 MHz frequency offset, 0 dB power

Carrier 2: Perch channel, 0 kHz frequency offset, 0 dB power

Carrier 3: Perch channel, 5 MHz frequency offset, 0 dB power

Softkey Location:

Multicarrier Off On > W-CDMA Select > 3 Carriers

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Selects three DPCH forward link channels for either the W-CDMA setup or the carrier in the multicarrier table editor.

Softkey Location:

W-CDMA Select > 3DPCH

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Or: Mode > CDMA Formats > W-CDMA (Re v 1 .0−1.2) > Multicarrier Define >

Edit Item > 3DPCH

Or: Mode > CDMA Formats > W-CDMA (Re v 1 .0−1.2) > Multicarrier Define >

Insert Row > 3DPCH

8.000 MHz

Selects a standard 4-carrier W-CDMA setup with the settings listed below. (See also “W-CDMA Select” on page 3-35.)

Carrier 1: Perch channel,

Carrier 2: Perch channel,

−7.5 MHz frequency offset, 0 dB power

−2.5 MHz frequency offset, 0 dB power

Carrier 3: Perch channel, 2.5 MHz frequency offset, 0 dB power

Carrier 4: Perch channel, 7.5 MHz frequency offset, 0 dB power

Softkey Location:

Multicarrier Off On > W-CDMA Select > 4 Carriers

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Selects a reconstruction filter with a cutoff frequency of 8.000 MHz.

Softkey Location:

W-CDMA Define > Reconstruction Filter > 8.000 MHz

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

3-4

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

250 kHz

Selects a reconstruction filter with a cutoff frequency of 250 kHz.

Softkey Location:

W-CDMA Define > Reconstruction Filter > 250.0 kHz

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Adjust Code Domain Power

Accesses a menu that enables you to adjust the code domain power (the relative power in each of the channels). Select channels are of equal energy per bit and the total power equals 0 dB), or

Scale to 0 dB (scale all of the current channel powers so that the total

power equals 0 dB while keeping the previous relative power ratios between the individual channels). Available in Forward Link only.

Softkey Location:

W-CDMA Define > Edit Channel Setup > Adjust Code Domain Power

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

APCO 25 C4FM

Press this softkey to select an APCO 25-specified C4FM filter in the Select (filter) menu. This is a Nyquist filter with an alpha of 0.2 which is combined with a shaping filter. This softkey is only available when

Multicarrier Off On is toggled to Off.

Softkey Location:

W-CDMA Define > Filter > Select > APCO 25 C4FM

Mode > CDMA Formats > W-CDMA (Rev 1.0-1.2) >

Equal Energy per Symbol (all

Apply Channel Setup

Applies the changes made in the channel setup table editor (see “Edit

Channel Setup” on page 3-12) for the current link. If the waveform is

set to

On, the new channel data generates a new modulation waveform

in ARB waveform memory.

Softkey Location:

W-CDMA Define > Apply ChannelSetup

Apply Multicarrier

Applies the current settings in the multicarrier table editor. (See also

“Multicarrier Define” on page 3-22.)

Softkey Location:

Multicarrier Off On > Multicarrier Define > Apply Multicarrier

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Mode > CDMA Formats > W-CDMA (Rev 1.0-1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-5

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Apply To Waveform

Use this terminator softkey to apply the current clipping settings you have selected to the waveform. Press the new settings at this time.

NOTE The settings are applied the next time you generate a waveform.

Return if you do not want to apply

Softkey Location:

W-CDMA Define > Clipping > Apply To Waveform

ARB Reference Ext Int

Selects either an internal or an external reference for the waveform clock. If you choose external, you must enter the reference frequency (as described under the the signal to the BASEBAND GEN REF IN connector.

Default Value: Int39

Softkey Location:

W-CDMA Define > ARB Reference Ext Int

Bus

Sets the trigger source to bus. When the trigger source is set to bus, the signal generator triggers an event when it receives the appropriate command via GPIB.

Softkey Location:

Trigger Setup > Trigger Source > Bus

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Reference Frequency softkey on page 3-27) and apply

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

Channels

3-6

Press this softkey, then enter the number of duplicate channels that you want to set up and insert into the Edit Channel Setup table editor. Press the softkey

Enter to terminate the entry.

After you have set the channel parameters, and the number of times you want the channel duplicated, press

Done to insert the information

into the table editor.

Default Value: 1

Range: 1 through 511

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert Row > Multiple Channels > Channels

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Chip Rate

Displays a menu where you can choose the chip rate for the channels in the current table editor.

Default Value: 4.096000 Mcps

Available Values (in Mcps): 4.096, 8.192, 16.384

Softkey Location:

W-CDMA Define > Edit Channel Setup > Chip Rate

Clip |I+jQ| To

Use this softkey to make the modulation level of the combined I and Q waveform the active function. You can then clip (limit) the level to a percentage of full scale. A level of 100.0% equates to no clipping.

Default Value: 100.0%

Range: 10.0 through 100.0%, in 0.1% increments

Softkey Location:

W-CDMA Define > Clipping > Clip |I+jQ| T o

Clip |I| To

Use this softkey to make the modulation level of the I component the active function. You can then clip (limit) the level to a percentage of full scale. A level of 100.0% equates to no clipping.

Default Value: 100.0%

Range: 10.0 through 100.0%, in 0.1% increments

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Location:

W-CDMA Define > Clipping > Clip |I| To

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Clip |Q| To

Use this softkey to make the modulation level of the Q component the active function. You can then clip (limit) the level to a percentage of full scale. A level of 100.0% equates to no clipping.

Default Value: 100.0%

Range: 10.0 through 100.0% in 0.1% increments

Softkey Location:

W-CDMA Define > Clipping > Clip |Q| T o

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-7

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Clip At PRE POST FIR Filter

Use this softkey to select whether you want the waveform clipped before (PRE) or after (POST) FIR filtering.

Default Value: PRE

Softkey Location:

W-CDMA Define > Clipping > Clip At PRE POST FIR Filter

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Clipping

Press this softkey to access a menu of options for limiting the modulation level.

Softkey Location:

W-CDMA Define > Clipping

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Clipping Type |I+jQ| |I|,|Q|

Use this softkey to select either |I+jQ| or |I|,|Q| as the clipping type. If you select |I+jQ|, the combined I and Q waveform is clipped (circular clipping). If you select |I|,|Q|, the I and Q components of the waveform are clipped independently (rectangular clipping). In this case, you can clip I and Q to different levels.

Default Value: |I+jQ|

Softkey Location:

W-CDMA Define > Clipping > Clipping Type |I+jQ| |I|,|Q|

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Continuous

Sets the W-CDMA trigger type to continuous. In continuous trigger mode, the waveform repeats itself indefinitely.

Softkey Location:

Continuous

Custom W-CDMA Carrier

Displays the forward link W-CDMA (FWCDMA) memory catalog. From this catalog listing, you can choose a previously stored custom carrier setup.

Softkey Location:

Multicarrier Off On > Multicarrier Define > Edit Item > Custom W-CDMA Carrier

Or: Mode > CDMA Formats > W-CDMA (Rev 1.0-1.2) > Multicarrier Off On >

Multicarrier Define > Insert Row > Custom W-CDMA Carrier

3-8

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

Mode > CDMA Formats > W-CDMA (Rev 1.0-1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Custom W-CDMA Multicarrier

Displays the multicarrier forward link W-CDMA (MFWCDMA) memory catalog. From this catalog listing, you can choose a previously stored custom multicarrier setup.

Softkey Location:

Multicarrier Off On > W-CDMA Select > Custom W-CDMA Multicarrier

Custom W-CDMA State

Displays the W-CDMA Setup Select File menu for the current link, where you can choose a previously stored custom W-CDMA setup.

Softkey Location:

W-CDMA Select > Custom W-CDMA State

Define User FIR

Accesses a table editor for creating and modifying FIR filters. The FIR table editor allows a maximum filter length of 1024 taps with a maximum oversampling ratio of 32. An FIR filter selected for use in W-CDMA, however, cannot have more than 256 taps so the number of symbols and the oversample ratio should be selected accordingly. Examples of using the FIR table editor are provided in the “Using Functions” chapter.

Softkey Location:

W-CDMA Define > Filter > Define User FIR

Mode > CDMA Formats > W-CDMA (Rev 1.0-1.2) >

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Delete All Rows

Deletes all rows in the current table editor.

Deletions cannot be recovered.

Delete All Rows is located in some table editors.

Delete File

Deletes the highlighted file from the displayed catalog. You will be prompted for confirmation.

Delete File is located in catalogs of files.

Delete Row

Deletes the highlighted row in the table.

Deletions cannot be recovered.

Softkey Location:

W-CDMA Define > Edit Channel Setup > Delete Row

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-9

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Display FFT

Displays a graphical representation of the frequency response of the filter loaded into the FIR table editor (calculated using a fast Fourier transform). The following is an example of the frequency response of a root Nyquist filter with an oversample ratio of 4.

To return to the FIR table editor and the menu keys, press

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Display FFT

Display Impulse Response

Displays a graphical representation of impulse response in time of the filter loaded into the FIR table editor. The following is an example of the impulse response of a root Nyquist filter with an oversample ratio of 4.

To return to the FIR table editor and the menu keys, press

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Display Impulse Response

Return.

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Return.

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

DPCCH

3-10

Selects a single DPCCH channel for the reverse link channel setup.

Softkey Location:

W-CDMA Select > DPCCH

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

DPCCH + 1 DPDCH

Selects a DPCCH channel plus one DPDCH channel for the reverse link channel setup.

Softkey Location:

W-CDMA Select

DPCCH + 2 DPDCH

Selects a DPCCH channel plus two DPDCH channels for the reverse link channel setup.

Softkey Location:

W-CDMA Select > DPDCH + 2 DPDCH

DPCCH + 3 DPDCH

Selects a DPCCH channel plus three DPDCH channels for the reverse link channel setup.

Softkey Location:

W-CDMA Select > DPDCH + 3 DPDCH

DPCH

Displays a menu where you can choose the symbol rate (in ksps) of the DPCH channel that is then inserted into the forward link Edit Channel Setup table editor.

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

> DPCCH + 1 DPDCH

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert Row > DPCH

DPDCH Channels

Sets the number of DPDCH channels being inserted into the reverse link Edit Channel Setup table editor.

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert DPDCH > DPDCH Channels

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-11

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Edit Channel Setup

Accesses a table editor where you can define the channel parameters of the current W-CDMA signal for the current link.

Use the front-panel knob or the arrow keys to move the cursor within the table structure, and the numeric keypad to change values contained in the table.

NOTE Using the keys found beneath the Goto Row softkey, you can move more

quickly through a large table.

Softkey Location:

W-CDMA Define > Edit Channel Setup

Edit Item

Changes the highlighted item in the displayed table.

Softkey Location:

W-CDMA Define > Edit Channel Setup > Edit Item

Or: Mode > CDMA Formats > W-CDMA (Rev 1. 0-1.2) > Multicarrier Off On >

Multicarrier Define > Edit Item

Equal Energy per Symbol

Sets the selected channel powers to equal energy per symbol (referenced to 8 ksps, and increasing by 3 dB for each doubling of the symbol rate). Available in Forward Link only.

Softkey Location:

W-CDMA Define > Edit Channel Setup > Adjust Code Domain Power > Equal Energy per Symbol

Ext

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

3-12

Sets the trigger source to external triggering. When the trigger source is set to external, the signal generator will trigger an event when it receives the appropriate signal via the PATTERN TRIG IN connector.

Softkey Location:

Trigger Setup > Trigger Source > Ext

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Ext Delay

Arms (On) or disarms (Off) the external trigger delay. To use external trigger delay, press this softkey until then set the external delay time by pressing the

Default Value: Off

Ext Delay On is highlighted, and

Ext Delay Time softkey.

Softkey Location:

Trigger Setup > Trig ger Source > Ext Delay Off On

Ext Delay Time

Sets the time for the external trigger delay. External trigger delay may be adjusted to trigger a waveform at a specified length of time after an external trigger signal has been received at the PATTERN TRIG IN connector. Enter a new value and press the

To use external trigger delay, press highlighted, and then set the external delay time by pressing the

Ext Delay Time softkey.

Default Value: 2.000 milliseconds

Range: 2.0 microseconds through 3600 seconds.

Softkey Location:

Trigger Setup > Trigger Source > Ext Delay Time

Ext Polarity Neg Pos

Sets the external trigger source polarity to either a positive change or a negative change in signal level. Depending on your choice, the signal generator will trigger an event when it receives the appropriate positive or negative change in signal at the PATTERN TRIG IN connector.

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

Enter terminator softkey.

Ext Delay Off On until On is

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

Default Value: Neg

Softkey Location:

Trigger Setup > Trigger Source > Ext Polarity Neg Pos

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

Filter

Accesses menus for selecting a filter type, restoring the default filter, and for defining a unique FIR filter. The Filter menu also lets you adjust the filter alpha (when Nyquist or root Nyquist filters are selected) or bandwidth time product (for Gaussian filters).

Softkey Location:

W-CDMA Define > Filter

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-13

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Filter Alpha

Changes the FIR filter’s alpha parameter in either the Filter menu or the Load Default FIR menus.

In the Filter Menu

Changes the alpha parameter of the selected root Nyquist or Nyquist filter. To enter a new value, rotate the front-panel knob until the desired value is displayed, use the up and down arrow keys, or enter the value using the numeric keypad and press the

This key only appears after choosing a root Nyquist or Nyquist filter. If a Gaussian filter is in use, you will see use, you will see a grayed-out softkey:

Filter BbT. If any other filter is in

Filter Factor N/A.

Default Value: 0.500

Range: 0.000 through 1.000

Enter terminator softkey.

Filter BbT

Softkey Location:

W-CDMA Define > Filter > Filter Alpha

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

In the Load Default FIR Menu

Changes the alpha parameter of the root Nyquist or Nyquist filter coefficients loaded into the FIR table editor. After entering the alpha value, press

Generate to modify the filter coefficients in the table editor.

Default Value: 0.350

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR > Root Nyquist (or Nyquist)> Filter Alpha

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Changes the bandwidth-multiplied-by-bit-time (BbT) filter parameter in either the Filter menu or the Load Default FIR menu.

In the Filter Menu

In the Filter menu, Filter Bbt changes the BbT parameter of the selected Gaussian filter.

NOTE This key appears only after choosing a Gaussian filter. If a root Nyquist

or Nyquist filter is in use, you will see

Filter Alpha. If any other filter is in

use, you will see a Filter Factor N/A softkey (grayed-out).

Default Value: 0.500

Range: 0.000 through 1.000

3-14

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Softkey Location: Mode > CDMA Formats > W- CD MA (Rev 1.0−1.2) >

W-CDMA Define > Filter > Select > Gaussian > Filter BbT

In the Load Default FIR Menu

Changes the BbT parameter of the Gaussian filter coefficients loaded into the FIR table editor. After entering the BbT value, press modify the filter coefficients in the table editor.

Default Value: 0.300

Generate to

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR > Gaussian > Filter BbT

Filter Factor

This grayed-out softkey is displayed when a filter is in use that doesn’t contain an adjustable alpha or BbT parameter (such as the IS-95 filter selections or a user-defined FIR filter). This softkey changes to either

Filter Alpha or Filter BbT if the appropriate root Nyquist, Nyquist, or

Gaussian filter is selected for use.

Softkey Location:

W-CDMA Define > Filter > Filter Factor

Filter Symbols

Defines the number of symbols for the filter to be loaded into the FIR table editor. The FIR table editor allows a maximum filter length of 1024 coefficients with a maximum oversample ratio of 32 and a maximum of 32 symbols. An FIR filter selected for use in W-CDMA, however, cannot have more than 256 coefficients so the number of symbols and the oversample ratio should be selected accordingly.

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

To change the number of symbols, rotate the front-panel knob until the desired value is displayed, use the up and down arrow keys, or enter the value using the numeric keypad and press the

Enter terminator softkey.

Default Value: 8

Range: 1 through 32

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR > Root Nyquist (or Nyquist, Gaussian, or Rectangle)> Filter Symbols

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-15

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

First Spread Code

This softkey appears in the Multiple Channels menu, where you define a channel and then insert multiple entries of that channel into the Edit Channel Setup table editor.

Press the

First Spread Code softkey, then enter the value that you want

for the starting spread code for the channels that will be inserted. Press the softkey

NOTE Check existing entries in the table editor to be sure that there will be no

duplication of an existing spread code. If there is, the warning

Conflict

Enter to terminate the entry.

Domain

is displayed in the table. If this happens, select any duplicate

Spread Code entries and give them unique values.

After you have set the channel parameters, and the number of times you want the channel duplicated, press

Done to insert the information

into the table editor.

Default Value: 8

Range: 0 through 15

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert Row > Multiple Channels > First Spread Code

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Gate Active

This softkey remains grayed-out until the trigger is set to Gated. Once the trigger has been set to Gated, press polarity of the “through” or active state of a gated trigger signal. Gate Active Low will output the signal while the gate is low at the PATTERN TRIG IN connector. Gate Active High has the opposite effect, outputting the signal while the signal level at the PATTERN TRIG IN connector is in a high state.

Gate Active Low High to toggle the

Gated

3-16

Softkey Location:

Trigger Setup > Gate Active

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

Sets the trigger type to Gated. Using a gated trigger, you can set the signal to output when a TTL high or low is present at the PATTERN TRIG IN connector. To set the gate to trigger on either high or low, press

Gated and then press Trigger Setup > Gate Active Low High.

Softkey Location:

Gated

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Gaussian

Selects the Gaussian pre-modulation filter in either the Select (filter) menu or the Load Default FIR menu.

In the Select (Filter) Menu

Selects this FIR filter for use in your filter setup. Use the Filter BbT softkey to change the filter bandwidth-multiplied-by-bit time product value.

Default Value: 0.500.

Range: 0.000 through 1.000

Softkey Location:

W-CDMA Define > Filter > Select > Gaussian

In the Load Default FIR Menu

Pressing the Gaussian softkey followed by Generate loads the FIR table editor with the coefficient values for the Gaussian filter. The filter BbT and number of filter symbols are defined with the softkeys in this menu. If you change either parameter after loading the filter coefficients, press the

The

Display Impulse Response and Display FFT softkeys in this menu

graphically display the filter as it is currently defined in the FIR table editor.

Softkey Location:

W-CDMA Define >Filter > Define User FIR > Load Default FIR > Gaussian

Goto Bottom Row

Moves the selection bar to the bottom row in the current table editor or list of items.

Goto Bottom Row is located in table editor menus and in catalogs of files.

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Generate softkey again to reload the FIR table.

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Goto Middle Row

Moves the selection bar to the middle row in the current table editor or list of items.

Goto Middle Row is located in table editor menus and in catalogs of files.

Goto Row

Displays softkeys that enable you to select a row or page in a table or list of items.

Goto Row is located in table editor menus and in catalogs of files.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-17

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Goto Top Row

Moves the selection bar to the top row in the current table or list of items.

Goto Top Row is located in table editor menus and in catalogs of files.

Hamming

Press this softkey to apply the Hamming windowing function to the selected filter. Windowing can be applied to any default FIR filter that you load into the Define User FIR table. Windowing improves out of band performance (ACP) by smoothing the filter’s transition to zero, but simultaneously compromises passband performance (EVM).

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR > Root Nyquist (or Nyquist, Gaussian, or Rectangle)> Window> Hamming

Mode > CDMA Formats > W-CDMA (3GPP 3.1 12-99) >

Hann

Press this softkey to apply the Hann windowing function to the selected filter. Windowing can be applied to any default FIR filter that you load into the Define User FIR table. Windowing improves out of band performance (ACP) by smoothing the filter’s transition to zero, but simultaneously compromises passband performance (EVM).

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR > Root Nyquist (or Nyquist, Gaussian, or Rectangle)> Window> Hann

Mode > CDMA Formats > W-CDMA (3GPP 3.1 12-99) >

I/Q Mapping Normal Invert

Selects whether the I/Q outputs will be normal or inverted.

Default Value: Normal

Softkey Location:

Link Forward Reverse > W-CDMA Define > I/Q Mapping Normal Invert

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Insert DPDCH

Enables you to insert one or more DPDCH channels into the reverse link Edit Channel Setup table editor.

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert DPDCH

3-18

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Insert Row

Displays a menu that enables you to select the type of row you wish to insert into the current table editor.

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert Row

IS-2000 SR3 DS

Press this softkey to select the standard IS-2000 spreading rate 3 direct spread filter. This softkey is only available when toggled to

Softkey Location:

W-CDMA Define > Filter > Select > IS-95 and IS-2000 > IS-2000 SR3 DS

IS-95

Press this softkey to select the standard IS-95 baseband filter.

Softkey Location:

W-CDMA Define > Filter > Select > IS-95 and IS-2000 > IS-95

IS-95 and IS-2000

Press this softkey to access a menu of IS-95 and IS-2000 filters in the Select Filter menu. This menu displays the following IS filter choices: IS

-2000 SR3 DS. This softkey is only available when Multicarrier Off On is

IS toggled to

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Multicarrier Off On is

Off.

Mode > CDMA Formats > W-CDMA (Rev 1.0-1.2) >

-95 and IS-2000

-95, IS-95 w/EQ, IS-95 Mod, IS-95 Mod w/EQ and

Off.

Softkey Location:

W-CDMA Define > Filter > Select > IS-95 and IS-2000

Mode > CDMA Formats > W-CDMA (Rev 1.0-1.2) >

IS-95 Mod

Selects a modified version of the standard IS-95 baseband filter. This filter is modified for improved adjacent channel performance. The modification, however, is done in a manner that still meets the IS-95 error function criterion.

Softkey Location:

W-CDMA Define > Filter > Select > IS-95 and IS-2000 > IS-95 Mod

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-19

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

IS-95 Mod w/EQ

Selects a modified version of the standard IS-95 baseband filter. This filter is modified for improved adjacent channel performance, and includes the equalizer specified by IS-95. The filter modification is done in a manner that still meets the IS-95 error function criterion.

IS-95 w/EQ

Kaiser

Softkey Location:

W-CDMA Define > Filter > Select > IS-95 and IS-2000 > IS-95 Mod w/EQ

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Selects the standard IS-95 baseband filter with an equalizer provided for phase compensation required by the base station.

Softkey Location:

W-CDMA Define > Filter > Select > IS-95 and IS-2000 > IS-95 w/EQ

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Press this softkey to apply the Kaiser windowing function to the selected filter. Windowing can be applied to any default FIR filter that you load into the Define User FIR table. Windowing improves out of band performance (ACP) by smoothing the filter’s transition to zero, but simultaneously compromises passband performance (EVM). Selecting

Kaiser also activates the Beta factor which you adjust to change the

trade-off between optimized ACP or EVM. Decreasing the value improves EVM. Increasing the value improves ACP.

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR > Root Nyquist (or Nyquist, Gaussian, or Rectangle)> Window > Kaiser

Mode > CDMA Formats > W-CDMA (3GPP 3.1 12-99) >

Link Forward Reverse

Selects a W-CDMA forward or reverse link channel configuration.

Forward Link= base to mobile

Reverse Link= mobile to base

Default Value: Forward

Softkey Location:

Link Forward Reverse

3-20

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Load Default FIR

Accesses a menu for automatically filling the FIR table editor with coefficient values from pre-defined filters such as root Nyquist, Nyquist, Gaussian, and Rectangle. The default filter parameters can also be selected in this menu allowing you to choose the filter alpha or BbT and the number of filter symbols.

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR

Load From Selected File

Replaces the current information in a table editor with the information stored in the highlighted file.

Load From Selected File is located in catalogs of files.

Load/Store

Accesses a menu for loading a table editor with values from files previously stored in the signal generator memory, and to save to memory a user-defined signal from the table editor.

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load/Store

Mirror Table

Mirrors the FIR table entries such that the table doubles in size, and the values in the top half of the table are duplicated in the bottom half of the table in reverse order.

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Mirror Table

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Modify All Scramble Codes

Sets the scramble code field to the same value for all channels in the current table editor. After you enter the desired value, press the softkey

Enter to terminate the entry. Available in Forward Link only.

Range: 0 to 512

Softkey Location:

W-CDMA Define > Edit Channel Setup > Modify All Scramble Codes

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-21

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Multicarrier Define

Accesses the Multicarrier W-CDMA Setup table, where you can define a multicarrier W-CDMA signal. This softkey is not present in the softkey menu until multicarrier mode is enabled (see

page 3-22

For information on using W-CDMA multicarrier, refer to “Creating,

Storing, & Recalling a Custom Multicarrier W-CDMA Waveform” on

page 2-21.

“Multicarrier Off On” on

Softkey Location:

Multicarrier Off On > Multicarrier Define

Mode > CDMA Formats > W-CDMA (Rev 1.0-1.2) >

Multicarrier Off On

Toggles the multicarrier mode off and on.

When Multicarrier is on, the

Multicarrier Define softkey. Also, the options under the W-CDMA Select

W-CDMA Define softkey becomes the

softkey change (see “W-CDMA Select” on page 3-35).

For information on using multicarrier W-CDMA, refer to “Creating,

Storing, & Recalling a Custom Multicarrier W-CDMA Waveform” on

page 2-21.

NOTE The Multicarrier Off On softkey and related functions are accessible only

when using the W-CDMA forward link setup.

Default Value: Off

Softkey Location:

Multicarrier Off On

Mode > CDMA Formats > W-CDMA (Rev 1.0-1.2) >

Multiple Channels

3-22

Displays a menu that enables you to set up one or more identical channels to insert into the Edit Channel Setup table editor. After you have set the channel parameters, and how many times you want the channel duplicated, press

Done to insert the information into the table

editor.

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert Row > Multiple Channels

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

None

Selects no windowing for the selected filter in the current link. The filter is optimized for maximum passband performance (EVM).

Nyquist

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR > Root Nyquist (or Nyquist, Gaussian, or Rectangle)> Window > None

Mode > CDMA Formats > W-CDMA (3GPP 3.1 12-99) >

Selects the Nyquist (raised cosine) pre-modulation filter in either the Select (filter) menu or the Load Default FIR menu.

In the Select (Filter) Menu

Pressing the Nyquist softkey selects this FIR filter for use in the filter setup.

Default Filter Alpha: 0.220

Range: 0 through 1

Softkey Location:

W-CDMA Define > Filter > Select > Nyquist

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

In the Load Default FIR Menu

Pressing the Nyquist softkey followed by Generate loads the FIR table editor with the coefficient values for the Nyquist filter. The filter alpha and number of filter symbols are defined with the softkeys in this menu. If you change either parameter after loading the filter coefficients, press the

Generate softkey again to reload the FIR table.

Display Impulse Response and Display FFT softkeys in this menu

The graphically display the filter as it is currently defined in the FIR table editor.

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR > Nyquist

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Optimize FIR For EVM ACP

Optimizes the filter for minimized error vector magnitude (select EVM) or for minimized adjacent channel power (select ACP). The EVM selection provides the most ideal pass band. The ACP selection improves stopband rejection. This feature only applies to root Nyquist, Nyquist, and Gaussian filters. The softkey is grayed out when any other filter is selected.

Default Value: EVM

Softkey Location:

W-CDMA Define > Filter > Optimize FIR For EVM ACP

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-23

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Oversample Ratio

Sets the oversampling ratio to be applied to a custom FIR filter design in the Define User FIR menu. The maximum combination of symbols and oversampling ratio is 1024. Since an FIR filter selected for use in W-CDMA cannot have more than 256 coefficients, select accordingly.

This is a persistent state that is set to 4 at the factory.

Range: 1 through 32

Page Down

Page Up

Perch

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Oversample Ratio

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Views the next page of listings in a table editor or catalog of files.

Page Down is located in table editor menus and in catalogs of files.

Views the previous page of listings in a table editor or catalog of files.

Page Up is located in table editor menus and in catalogs of files.

This softkey appears in three places: the Multicarrier Define menu, the Insert Row menu, and the W-CDMA Select menu.

In the Multicarrier Define Menu

Selects a single perch forward link channel for the multicarrier setup.

Softkey Location:

Multicarrier Define > Edit Item > Perch

Mode > CDMA Formats > W-CDMA (Rev1.0−1.2) >

3-24

In the Insert Row Menu

Inserts a perch channel into the current table editor.

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert Row > Perch

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

In the W-CDMA Select Menu

Selects a single perch forward link channel for the W-CDMA setup.

Softkey Location:

W-CDMA Select > Perch

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Perch + 1 DPCH

Selects a perch channel plus one DPCH channel for either the forward link channel setup, or the carrier in the multicarrier table editor.

Softkey Location:

W-CDMA Select > Perch + 1 DPCH

Or: Mode > CDMA Formats > W-CDMA (Re v 1 .0−1.2) > Multicarrier Define >

Edit Item > Perch + DPCH

Or: Mode > CDMA Formats > W-CDMA (Re v 1 .0−1.2) > Multicarrier Define >

Insert Row > Perch + DPCH

Perch + 3 DPCH

Selects a perch channel plus three DPCH forward channels for either the forward link channel setup, or the carrier in the multicarrier table editor.

Softkey Location:

W-CDMA Select > Perch + 3 DPCH

Or: Mode > CDMA Formats > W-CDMA (Re v 1 .0−1.2) > Multicarrier Define >

Edit Item > Perch + 3 DPCH

Or: Mode > CDMA Formats > W-CDMA (Re v 1 .0−1.2) > Multicarrier Define >

Insert Row > Perch + 3 DPCH

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Perch + 50 DPCH

Selects a perch channel plus fifty DPCH forward channels for either the forward link channel setup, or the carrier in the multicarrier table editor.

Softkey Location:

W-CDMA Select > Perch + 50 DPCH

Or: Mode > CDMA Formats > W-CDMA (Re v 1 .0−1.2) > Multicarrier Define >

Edit Item > Perch + 50 DPCH

Or: Mode > CDMA Formats > W-CDMA (Re v 1 .0−1.2) > Multicarrier Define >

Insert Row > Perch + 50 DPCH

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-25

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Plot CCDF

Displays a plot of the Complementary Cumulative Distribution Function for the selected waveform. The plot displays the probability that the instantaneous envelope power is x dB above the average power, where x is the number on the horizontal axis.

Power

Random

Softkey Location:

Waveform Statistics > Plot CCDF

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

This softkey appears in the Multiple Channels menu for the current link, where you define a channel and then insert multiple entries of that channel into the Edit Channel Setup table editor.

Press the

Power softkey, then enter the value that you want for the

power level of the channels that will be inserted.

After you set the channel parameters, and the number times you want the channel duplicated, press

Done to insert the information into the

table editor.

Default Value: 0.00 dB

Range: –40.00 through 0.00

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert Row > Multiple Channels > Power

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

3-26

Press this softkey while an item is highlighted in the Data column of the table editor to enter random data as the channel data.

RANDOM

appears in the Data Table Editor field.

Softkey Location:

W-CDMA Define > Edit Channel Setup > (highlight a value in the data

column) >

Edit Item > Random

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Reconstruction Filter

Displays a menu for selecting a reconstruction filter. You can choose a filter with a cutoff frequency of 250.0 kHz, 2.500 MHz, 8.000 MHz, or no filter (

Default Value: 2.500 MHz

Through).

Rectangle

Softkey Location:

W-CDMA Define > Reconstruction Filter

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Selects a rectangle pre-modulation filter in either the Select (filter) menu or the Load Default FIR menu.

In the Select (Filter) Menu

Press the Rectangle softkey to select this FIR filter for use in your filter setup.

Softkey Location:

W-CDMA Define > Filter > Select > Rectangle

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

In the Load Default FIR Menu

Pressing the Rectangle softkey followed by Generate loads the FIR table editor with the coefficient values for a rectangle filter.

The

Display Impulse Response and Display FFT softkeys in this menu

graphically display the filter as it is currently defined in the FIR table editor.

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR > Rectangle

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Reference Frequency

Sets the reference frequency of the external clock. This key is available only when an external ARB reference is applied to the BASEBAND GEN REF IN connector.

Default Value: 10.0000000 MHz

Range: 250.0000 kHz through 20.0000000 MHz.

Softkey Location:

W-CDMA Define > Reference Freq

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-27

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Restore Default Filter

Replaces the current FIR filter with the default filter (IS-95 Mod w/EQ).

Softkey Location:

W-CDMA Define > Filter > Restore Default Filter

Retrigger Mode Off On

Toggles the operating state of the retrigger mode. When retrigger mode is on, if a trigger occurs while a waveform is playing, the waveform retriggers at the end and plays one more time. If several triggers are received during a waveform, the waveform is replayed only once. When retrigger mode is off, if a trigger occurs while a waveform is playing, the retrigger is ignored.

Default Value: Off

Softkey Location:

Trigger Setup > Retrigger Mode Off On

Root Nyquist

Selects the root Nyquist (root-raised cosine) pre-modulation filter in either the Select (filter) menu or the Load Default FIR menu.

In the Select (Filter) Menu

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

Pressing the Root Nyquist softkey selects this FIR filter and returns the Filter menu.

Softkey Location:

W-CDMA Define > Filter > Select > Root Nyquist

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

In the Load Default FIR Menu

Pressing the Root Nyquist softkey followed by Generate loads the FIR table editor with the coefficient values for the root Nyquist filter. The filter alpha and number of filter symbols are defined with the softkeys in this menu. If you change either parameter after loading the filter coefficients, press the

Display Impulse Response and Display FFT softkeys in this menu

The graphically display the filter as it is currently defined in the FIR table editor.

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR > Root Nyquist

Generate softkey again to reload the FIR table.

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

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W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Scale To 0dB

Scales all of the current channel powers so that the total power equals 0 dB while keeping the previous power ratios between the individual channels. Available in Forward Link only.

Softkey Location:

W-CDMA Define > Edit Channel Setup > Adjust Code Domain Power > Scale to 0dB

Scramble Code

This softkey appears in the Multiple Channels menu for the current link, where you define a channel and then insert multiple entries of that channel into the Edit Channel Setup table editor.

Press the the scramble code for the channels that will be inserted. Press the softkey

After you have set the channel parameters, and how many times you want the channel duplicated, press the table editor.

Default Value: 00000000001

Range:

0 through 512, Forward Link

0 through 1FFFFFFFFFF, Reverse Link

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert Row > Multiple Channels > Scramble Code

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Scramble Code softkey, then enter the value that you want for

Enter to terminate the entry.

Done to insert the information into

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Second DPDCH I Q

This softkey allows you to set the second DPDCH channel to I or Q.

Softkey Location:

Link Forward Reverse > W-CDMA Define > Edit Channel Setup > Second DPDCH I Q

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-29

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Select

Accesses a menu for selecting the pre-modulation filter type. You can choose from:

Pre-defined filters, such as root Nyquist, Nyquist, Gaussian, several IS-95/IS-2000 baseband filters, User FIR, Rectangle, APCO 25 C4FM, and UN3/4 GSM Gaussian. When you access this menu through the W-CDMA menus, a filter optimized for W-CDMA is also available.

The standard IS-95 filter is available as well as a modified version of this filter that meets the IS-95 error function for improved adjacent channel performance. These two filters are also provided with an equalizer for phase compensation required by the base station.

A catalog of files stored in the signal generator memory.

Default Value: WCDMA

Select File

Single

Spread Only

Softkey Location:

W-CDMA Define > Filter > Select

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Selects a stored file.

Select File is located in catalogs of files.

Sets the trigger type to single. After receiving a trigger, the waveform is output once.

Softkey Location:

Single

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

Sets all symbols for the channel being inserted to random values, instead of having specific bit fields such as pilot, TPC, etc. This softkey also displays a menu that enables you to choose the symbol rate (in ksps) of the Spread Only forward channel that is then inserted into the Edit Channel Setup table editor.

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert Row > Spread Only

Store Custom Multicarrier

Accesses a menu where you can store the contents of the multicarrier table editor into a file.

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W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

This softkey stores the following information for each carrier:

• type of carrier

• frequency offset

• power level

Softkey Location:

Multicarrier Off On > Multicarrier Define > Store Custom Multicarrier

NOTE To recall a file, press Mode > CDMA Formats > W-CDMA (Rev 1.0-1.2) >

Multicarrier Off On > W-CDMA Select > Custom W-CDMA Multicarrier, and select

Mode > CDMA Formats > W-CDMA (Rev 1.0-1.2) >

the desired file.

Store Custom W-CDMA State

Accesses a menu where you can store the current custom W-CDMA state into a file that can be recalled for later use (as described under the softkey

Along with the contents of the W-CDMA channel table editor, the following information is also stored:

• FIR filter

• FIR filter file name

• FIR filter alpha

• FIR filter BbT

• FIR filter channel (EVM or ACP)

Custom W-CDMA State).

•I/Q Mapping

•Link

•chip rate

• ARB reconstruction filter

• ARB reference clock source (internal or external)

• ARB reference clock frequency

• Clipping Level

• Forward Link TFCI state

• Reverse Link TFCI state

• Reverse Link DPDCH (second DPDCH I or Q)

• Reverse Link Scramble Code

Softkey Location:

W-CDMA Define > Store Custom W-CDMA State

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-31

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Store To File

Displays a menu where you can store the current table editor information for later use.

Store To File is located in catalogs of files.

Symbol Rate

This softkey appears in the Multiple Channels menu for the current link, where you define a channel and then insert multiple entries of that channel into the Edit Channel Setup table editor.

Press the for the channel definition. Press the softkey

After you have set the channel parameters, and the number of times you want the channel duplicated, press into the table editor.

Default Value: 32 ksps

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert Row > Multiple Channels > Symbol Rate

TFCI Field Off On

Turns the TFCI (Transport Format Combination Indicator) field on or off for all the channels in the current table editor.

Default Value: On

Softkey Location:

W-CDMA Define > Edit Channel Setup > TFCI Field Off On

Through

Symbol Rate softkey, then enter the symbol rate that you want

Enter to terminate the entry.

Done to insert the information

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Trigger

3-32

Bypasses all reconstruction filtering. This is useful for using external reconstruction filters at frequencies different than those supplied internally.

Softkey Location:

W-CDMA Define > Reconstruction Filter > Through

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Displays the trigger menu, where you can select types of triggering. The menu also contains a

Trigger Setup key that enables you to adjust the

trigger source, the retrigger mode, and the gate active polarity.

Default Value: Continuous

Softkey Location:

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

Trigger Key

Sets the trigger source to the signal generator’s front-panel Trigger hardkey. When the trigger source is set to generator will trigger an event when the

Trigger Key, the signal

Trigger hardkey is pressed.

Softkey Location:

Trigger Setup > Trigger Source > Trigger Key

Trigger Setup

Displays the dual setup menu. This menu enables you to adjust the trigger source, the retrigger mode, and the gate active polarity.

Softkey Location:

Trigger Setup

Trigger Source

Displays the trigger source menu. This menu enables you to adjust the trigger source between the front panel sent over the GPIB bus, or an external trigger applied to the PATTERN TRIG IN connector.

Default Value: Ext

Softkey Location:

Trigger Source

Type

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

Trigger key, a trigger command

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) > Trigger >

Displays a menu that enables you to select the type of channel that you want to set up and insert multiple times into the Edit Channel Setup table editor. After you have set the channel parameters, and how many times you want the channel duplicated, press

Done to insert the

information into the table editor.

Default Value: DPCH

Softkey Location:

W-CDMA Define > Edit Channel Setup > Insert Row > Multiple Channels > Type

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

UN3/4 GSM Gaussian

This key selects a UN3/4 delay compatible, GSM, Gaussian filter with a

0.300 fixed BbT.

Softkey Location:

W-CDMA Define > Filter > Select > UN3/4 GSM Gaussian

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-33

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

User FIR

Displays the catalog of FIR filter files stored in the signal generator’s memory. You can select a custom filter from this catalog for your pre-modulation filter. Scroll through the listed files and when your selection is highlighted, press the

is shown in the Filter field of the display, and the file name is

FIR

shown in the second line of the

Select File softkey. Notice that User

Select softkey.

Softkey Location:

W-CDMA Define > Filter > Select > User FIR

Waveform Statistics

This grayed-out softkey is active only when a waveform is generated. When this softkey is active statistics are available for the selected waveform.

Softkey Location:

Waveform Statistics

WCDMA

Selects the WCDMA pre-modulation filter in the Select (filter) menu. Pressing the Filter menu.

Softkey Location:

W-CDMA Define > Filter > Select > WCDMA

W-CDMA (Rev 1.0−1.2)

Opens a menu of softkeys where you can generate data patterns that are formatted into a structure defined by the W-CDMA (Revision 1.0

1.2) standard.

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

WCDMA softkey selects this FIR filter and returns the

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

−

This softkey is available only if both Option UND and Option 100 are installed.

Softkey Location:

W-C DM A D ef in e

Displays the W-CDMA Define menu for the current link, where you can define a W-CDMA signal. With the this softkey is replaced with the

“Multicarrier Define” on page 3-22).

Softkey Location:

W-CDMA Define

3-34

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2)

Multicarrier Off On softkey set to On,

Multicarrier Define softkey (see

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Softkey Reference

Option 100 Mode Key

W-CDMA Off On

Enables W-CDMA baseband signal generation. Turning W-CDMA on sets up the internal hardware to generate the currently selected W-C DMA si gna l. Th e display. The W-CDMA signal modulates the RF carrier only after you have set the front panel

Default Value: Off

W-CDMA and I/Q annunciators appear on the

Mod On/Off key to On.

Softkey Location:

W-CDMA Off On

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

W-C DM A S el ec t

The function of this softkey changes, depending on whether multicarrier mode is off (default) or on. (Refer to “Multicarrier Off On” on page 3-22.)

Multicarrier Off

Displays the W-CDMA Select menu for the current link, where you can select a predefined channel setup or a stored custom state.

Default Value: 1 DPCH

Softkey Location:

W-CDMA Select

Multicarrier On

Displays the multicarrier W-CDMA Select menu, where you can select a predefined multicarrier setup or a stored custom multicarrier setup.

NOTE The Multicarrier Off ON softkey and related functions are accessed only

when using the W-CDMA forward link setup.

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Default Value: 2 Carriers

Softkey Location:

W-CDMA Select

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 3-35

Mode > CDMA Formats > W-CDMA (Rev 1.0−1.2) >

Softkey Reference ESG Family Signal Generators

Mode Key Option 100

Window

Pressing this softkey accesses a menu for applying a windowing function to the selected filter. The default is to use no windowing which optimizes the passband response (EVM). Several windowing selections are provided in this menu which can be applied to smooth the filter’s transition to zero. Windowing improves adjacent channel power performance (ACP) but simultaneously compromises EVM.

Default Value: None

Softkey Location:

W-CDMA Define > Filter > Define User FIR > Load Default FIR > Root Nyquist (or Nyquist > Gaussian > or Rectangle)> Window

Mode > CDMA Formats > W-CDMA (3GPP 3.1 12-99) >

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W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators

Option 100

4 Operation

This chapter contains detailed information that will help you understand the operation of your Option 100 signal generator’s W-CDMA (Rev. 1.0-1.2) personality.

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 4-1

Operation ESG Family Signal Generators

W-CDMA Frame Structures Option 100

W-CDMA Frame Structures

This section contains graphical representations of W-CDMA frame structures, with associated tables, for both forward and reverse link channels.

Forward Link

Figure 4-1 Perch Channel Frame Structure

Table 4-1 Lengths of Perch Channel Fields

Parameter Symbols Per Slot

pilot

data

SCH

4-2

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Operation

Option 100 W-CDMA Frame Structures

Figure 4-2 Forward Link Frame Structure

Table 4-2 Forward Link DPDCH and DPCCH Fields

Channel Bit Rate

(kbps)

16 8 512 64 96 160 10 2 2 0 2 4

16 8 512 32 128 160 10 0 2 2 2 4

32 16 256 160 160 320 20 2 8 0 2 8

32 16 256 128 192 320 20 0 8 2 2 8

64 32 128 480 160 640 40 6 24 0 2 8

64 32 128 448 192 640 40 4 24 2 2 8

128 64 64 1120 160 1280 80 14 56 0 2 8

128 64 64 992 288 1280 80 6 56 8 2 8

256 128 32 2400 160 2560 160 30 120 0 2 8

256 128 32 2272 288 2560 160 22 120 8 2 8

512 256 16 4832 288 5120 320 62 240 0 2 16

512 256 16 4704 416 5120 320 54 240 8 2 16

Channel

Symbol

Rate

(ksps)

DPDCH DPCCH TOTAL

Spread Factor

Bits/Frame

Bits/Slot

DPDCH

Bits/Slot

data1Ndata2NTFCINTPC

DPCCH Bits/Slot

pilot

1024 512 8 9952 288 10240 640 126 496 0 2 16

1024 512 8 9824 416 10240 640 118 496 8 2 16

2048 1024 4 20192 288 20480 1280 254 1008 0 2 16

2048 1024 4 20064 416 20480 1280 246 1008 8 2 16

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 4-3

Operation ESG Family Signal Generators

W-CDMA Frame Structures Option 100

Reverse Link

Figure 4-3 Reverse Link Frame Structure

Table 4-3 Reverse Link DPDCH Fields

Channel Bit

Rate (kbps)

16 16 256 160 10 10

32 32 128 320 20 20

64 64 64 640 40 40

128 128 32 1280 80 80

256 256 16 2560 160 160

512 512 8 5120 320 320

1024 1024 4 10240 640 640

Channel Symbol

Rate (ksps)

Table 4-4 Reverse Link DPCCH Fields

Channel Bit

Rate (kbps)

16 16 256 160 10 6 2 2

16 16 256 160 10 8 2 0

Channel Symbol

Rate (ksps)

Spread

Fac tor

Spread

Fac tor

Bits/Frame Bits/Slot

pilot

TPC

data

TFCI

4-4

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Operation

Option 100 Understanding TPC Values

Understanding TPC Values

TPC values determine how the transmit power of the receiving base or mobile station will vary. In the channel table editor, TPC values are represented in hexadecimal format to simplify entries and modifications. Figure 4-4 shows the channel table editor with the TPC value, FF00, highlighted.

Figure 4-4 Highlighted TPC Value

Hexadecimal TPC values are converted to their binary equivalent. In this example, the value FF00 becomes 1111 1111 0000 0000. Notice that there are 16 digits in the binary TPC value. Because one frame contains 16 timeslots, one binary digit is assigned to each timeslot (see Figure 4-5). The assigned bit is then duplicated so that each timeslot contains two identical TPC bits: either 11 or 00.

The TPC bits 11 direct the receiving base or mobile station to increase its transmit power by an amount specified by the W-CDMA standard. Likewise, the TPC bits 00 cause the power to decrease by the same amount. In this example, the transmit power is increasing over timeslots 1 through 8 and decreasing over timeslots 9 through 16.

Figure 4-5 TPC Bits per Timeslot

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 4-5

Operation ESG Family Signal Generators

Understanding TFCI, TPC, and Pilot Power Offsets Option 100

Understanding TFCI, TPC, and Pilot Power Offsets

TFCI, TPC, and Pilot power offsets (PO), which are applied to forward link control channels (DPCCH), are relative to the transmit power for data channels (DPDCH). Usually, these offsets are set to a positive value (refer to Figure 4-6). The intent is to transmit control symbols at a higher level than data symbols to maintain the link between mobile and base. Because only the DPCCH transmit power is offset, the total transmit power is minimized.

Figure 4-6 TFCI, TPC, and Pilot Power

The display in Figure 4-7 shows that the channel in row 3 of the table editor has the data transmit power (Power dB) set to -5.44 dB with the following offsets: TFCI Power set to

2.00 dB, TPC Power set to 3.00 dB, and Pilot Power set to 1.00 dB. Because of these offsets,

the control symbols corresponding to TFCI, TPC, and Pilot will transmit at

−2.44 dB, and −4.44 dB respectively.

4-6

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

−3.44 dB,

ESG Family Signal Generators Operation

Option 100 Understanding TFCI, TPC, and Pilot Power Offsets

Figure 4-7 Table Editor Showing TFCI, TPC, and Pilot Power Offsets

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 4-7

Operation ESG Family Signal Generators

Understanding Baseband Clipping Option 100

Understanding Baseband Clipping

In a W-CDMA waveform, high power peaks can cause intermodulation distortion, which generates spectral regrowth (a condition that interferes with signals in adjacent frequency bands). The clipping function allows you to reduce high power peaks.

How Power Peaks Develop

To understand how clipping reduces high power peaks in a W-CDMA signal, it is important to know how the peaks develop as the signal is constructed.

A W-CDMA waveform is composed of an I waveform and a Q waveform. Often, these waveforms are the summation of multiple channels (refer to Figure 4-8). Whenever most or all of the individual channel waveforms simultaneously contain a bit in the same state (high or low), an unusually high power peak (negative or positive) occurs in the summed waveform. This does not happen frequently because the high and low states of the bits on these channel waveforms are random, which causes a cancelling effect.

Figure 4-8 Multiple Channel Summing

4-8

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

ESG Family Signal Generators Operation

Option 100 Understanding Baseband Clipping

The I and Q waveforms combine in the I/Q modulator to create an RF waveform. The

magnitude of the RF envelope is determined by the equation , where the squaring of I and Q always results in a positive value. Notice how simultaneous positive and negative

peaks in the I and Q waveforms do not cancel each other, but combine to create an even greater peak (refer to Figure 4-9).

Figure 4-9 Combining the I and Q Waveforms

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide 4-9

Operation ESG Family Signal Generators

Understanding Baseband Clipping Option 100

How Peaks Cause Spectral Regrowth

Because of the relative infrequency of high power peaks, a waveform will have a high peak-to-average power ratio (refer to Figure 4-10). Because a transmitter’s power amplifier gain is set to provide a specific average power, high peaks can cause the power amplifier to move toward saturation. This causes intermodulation distortion, which generates spectral regrowth.

Figure 4-10 Peak-to-Average Power in the W-CDMA Waveform

Spectral regrowth is a range of frequencies that develops on each side of the carrier (similar to sidebands) and extends into the adjacent frequency bands (refer to Figure 4-11). Consequently, spectral regrowth interferes with communication in the adjacent bands. Clipping can provide a solution to this problem.

Figure 4-11 Spectral Regrowth Interfering with Adjacent Band

4-10

W-CDMA (Rev. 1.0-1.2) Personality User’s and Programming Guide

Agilent E4430B Users and Programming Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

1 The W-CDMA (Rev. 1.0-1.2) Personality

Ensure you have the correct guide

Overview

Revision Numbers

Block Diagrams

2 Using Functions

Table Editor Basics

Using W-CDMA (Rev. 1.0-1.2)

Accessing the W-CDMA Menu

Selecting Predefined Channel Configurations

Forward Link Predefined Channel Configurations

Reverse Link Predefined Channel Configurations

Selecting a Forward Link Predefined Channel Configuration

Selecting a Reverse Link Predefined Channel Configuration

Modifying Forward Link Channel Configurations

Inserting Additional Channels

Editing Forward Link Channel Values in the Table Editor

Modifying Reverse Link Channel Configurations

Inserting Additional Channels

Editing Reverse Link Channel Values in the Table Editor

Storing a Custom W-CDMA State to Memory

Opening the Multicarrier W-C DM A Set up Table Editor

Modifying a Multicarrier W-CDMA 4-Carrier Template

Activating a Custom Multicarrier W-CDMA Setup

Storing a Custom Multicarrier W-CDMA Waveform

Recalling a Custom Multicarrier W-CDMA Waveform

Identifying and Resolving Code Domain Conflicts

Identifying Conflicts

Resolving Conflicts

Outputting a W-CDMA Waveform

Setting the Carrier Frequency and Power

Clipping the W-CDMA Waveform

Creating a User-Defined FIR Filter Using the FIR Table Editor

Accessing the Table Editor

Entering the Coefficient Values

Duplicating the First 16 Coefficients Using Mirror Table

Setting the Oversample Ratio

Displaying a Graphical Representation of the Filter

Storing the Filter to Memory

Modifying an FIR Filter Using the FIR Table Editor

Loading the Default Gaussian FIR File

Modifying the Coefficients

Storing the Filter to Memory

Applying a User-Defined FIR Filter to a W-CDMA Waveform

3 Softkey Reference

Mode Key

n ksps

1 DPCH

2 Carriers

2.500 MHz

3 Carriers

3 DPCH

4 Carriers

8.000 MHz

250 kHz

Adjust Code Domain Power

APCO 25 C4FM

Apply Channel Setup

Apply Multicarrier

Apply To Waveform

ARB Reference Ext Int

Channels

Chip Rate

Clip |I+jQ| To

Clip |I| To

Clip |Q| To

Clip At PRE POST FIR Filter

Clipping

Clipping Type |I+jQ| |I|,|Q|

Continuous

Custom W-CDMA Carrier

Custom W-CDMA Multicarrier

Custom W-CDMA State

Define User FIR

Delete All Rows

Delete File