Agilent Technologies N9020A Manual de usuario

Agilent Technologies

Agilent X-Series

Signal Analyzer

N9079A TD-SCDMA with

HSPA/8PSK Measurement

Application Measurement

Guide

This manual provides documentation for the

following X-Series Analyzers:

MXA Signal Analyzer N9020A

EXA Signal Analyzer N9010A

Notices

No part of this manual may be reproduced

in any form or by any means (including

electronic storage and retrieval or transla-

tion into a foreign language) without prior

agreement and written consent from Agi-

lent Technologies, Inc. as governed by

United States and international copyright

laws.

Manual Part Number

N9079-90005

Supersedes:N9079-90006

Print Date

August 2008

Printed in USA

Agilent Technologies, Inc.

1400 Fountaingrove Parkway

Santa Rosa, CA 95403

Warranty

The material contained in this docu-

ment is provided “as is,” and is sub-

ject to being changed, without notice,

in future editions. Further, to the

maximum extent permitted by appli-

cable law, Agilent disclaims all war-

ranties, either express or implied,

with regard to this manual and any

information contained herein, includ-

ing but not limited to the implied

warranties of merchantability and fit-

ness for a particular purpose. Agilent

shall not be liable for errors or for

incidental or consequential damages

in connection with the furnishing,

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or of any information contained

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have a separate written agreement

with warranty terms covering the

material in this document that con-

flict with these terms, the warranty

terms in the separate agreement

shall control.

Technology Licenses

The hardware and/or software described

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Restricted Rights Legend

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ware” as defined in DFAR 252.227-7014

(June 1995), or as a “commercial item” as

defined in FAR 2.101(a) or as “Restricted

computer software” as defined in FAR

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agency regulation or contract clause. Use,

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subject to Agilent Technologies’ standard

commercial license terms, and non-DOD

Departments and Agencies of the U.S.

Government will receive no greater than

Restricted Rights as defined in FAR 52.227-

19(c)(1-2) (June 1987). U.S. Government

users will receive no greater than Limited

Rights as defined in FAR 52.227-14 (June

1987) or DFAR 252.227-7015 (b)(2)

(November 1995), as applicable in any

technical data.

Safety Notices

CAUTION

A CAUTION notice denotes a haz-

ard. It calls attention to an operat-

ing procedure, practice, or the like

that, if not correctly performed or

adhered to, could result in damage

to the product or loss of important

data. Do not proceed beyond a

CAUTION notice until the indicated

conditions are fully understood and

met.

WARNING

A WARNING notice denotes a

hazard. It calls attention to an

operating procedure, practice, or

the like that, if not correctly per-

formed or adhered to, could result

in personal injury or death. Do not

proceed beyond a WARNING

notice until the indicated condi-

tions are fully understood and

met.

Trademark Acknowledgements

Microsoft “ is a U.S. registered

trademark of Microsoft Corporation.

Windows “ and MS Windows “ are

U.S. registered trademarks of

Microsoft Corporation.

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trademark of Adobe System

Incorporated.

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Microsystems, Inc.

MATLAB “ is a U.S. registered

trademark of Math Works, Inc.

Norton Ghost™ is a U.S. trademark of

Symantec Corporation.

Warranty

This Agilent technologies instrument product is warranted against defects in material

and workmanship for a period of one year from the date of shipment. during the

warranty period, Agilent Technologies will, at its option, either repair or replace

products that prove to be defective.

For warranty service or repair, this product must be returned to a service facility

designated by Agilent Technologies. Buyer shall prepay shipping charges to Agilent

Technologies shall pay shipping charges to return the product to Buyer. However,

Buyer shall pay all shipping charges, duties, and taxes for products returned to Agilent

Technologies from another country.

Where to Find the Latest Information

Documentation is updated periodically. For the latest information about this analyzer,

including firmware upgrades, application information, and product information, see

the following URLs:

http://www.agilent.com/find/mxa

http://www.agilent.com/find/exa

To receive the latest updates by email, subscribe to Agilent Email Updates:

http://www.agilent.com/find/emailupdates

Information on preventing analyzer damage can be found at:

http://www.agilent.com/find/tips

Contents

1. Making TD-SCDMA with HSPA/8PSK Measurements

Setting Up and Making a Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Making the Initial Signal Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Using Analyzer Mode and Measurement Presets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

The 3 Steps to Set Up and Make Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2. Transmit Power Measurements

Configuring the Measurement System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Setting the BTS (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Troubleshooting Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3. ACP Measurements

Configuring the Measurement System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Setting the BTS (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4. Power vs. Time Measurements

Configuring the Measurement System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Setting the BTS (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Troubleshooting Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5. Spectrum Emission Mask Measurements

Configuring the Measurement System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Setting the BTS (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Troubleshooting Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6. Spurious Emissions Measurement

Configuring the Measurement System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Setting the BTS (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Troubleshooting Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7. Occupied Bandwidth Measurements

Configuring the Measurement System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Setting the BTS (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Troubleshooting Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Contents

8. Power Statistics CCDF Measurements

Configuring the Measurement System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Setting the BTS (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Troubleshooting Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

9. Modulation Accuracy (Composite EVM) Measurements

Configuring the Measurement System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

Setting the BTS (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Troubleshooting Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

10. Code Domain Measurements

Configuring the Measurement System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

Setting the BTS (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Troubleshooting Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

11. IQ Waveform (Time Domain) Measurements

Configuring the Measurement System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

Setting the BTS (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

12. Monitor Spectrum Measurements

Configuring the Measurement System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

Setting the BTS (Example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92

Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

13. Using Option BBA Baseband I/Q Inputs

Baseband I/Q Measurements Available for X-Series Signal Analyzers . . . . . . . . . . . . . . . . . .96

Baseband I/Q Measurement Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

14. Baseband I/Q Inputs (Option BBA) Measurement Concepts

What are Baseband I/Q Inputs? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100

What are Baseband I/Q Signals? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101

Why Make Measurements at Baseband? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102

Selecting Input Probes for Baseband Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104

Supported Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105

Probes without Stored Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105

Baseband I/Q Measurement Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Spectrum Views and 0 Hz Center Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Waveform Views for Baseband I/Q Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Contents

Waveform Signal Envelope Views of I only or Q only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Contents

1Making TD-SCDMA with

HSPA/8PSK Measurements

This chapter begins with instructions common to all measurements,

then details all the measurements available by pressing the Meas key

when the TD-SCDMA with HSPA/8PSK mode is selected.

NOTE If you only install Option N9079-1FP, press TD-SCDMA to select the

TD-SCDMA mode.

If you install both Option N9079-1FP and Option N9079-2FP, press

TD-SCDMA with HSPA/8PSK to select the TD-SCDMA mode.

For information specific to individual measurements, see the sections at

the page numbers below.

•“Transmit Power Measurements” on page 13

•“ACP Measurements” on page 21

•“Power vs. Time Measurements” on page 29

•“Spectrum Emission Mask Measurements” on page 37

•“Spurious Emissions Measurement” on page 45

•“Occupied Bandwidth Measurements” on page 51

•“Power Statistics CCDF Measurements” on page 57

•“Code Domain Measurements” on page 73

•“Modulation Accuracy (Composite EVM) Measurements” on page 65

•“IQ Waveform (Time Domain) Measurements” on page 83

•Chapter 12 , “Monitor Spectrum Measurements,” on page 89

10 Chapter 1

Making TD-SCDMA with HSPA/8PSK Measurements

Setting Up and Making a Measurement

Making the Initial Signal Connection

CAUTION Before connecting a signal to the analyzer, make sure the analyzer can

safely accept the signal level provided. The signal level limits are

marked next to the RF Input connectors on the front panel.

See the Input Key menu for details on selecting input ports and the

AMPTD Y Scale menu for details on setting internal attenuation to

prevent overloading the analyzer.

Using Analyzer Mode and Measurement Presets

To set your current measurement mode to a known factory default

state, press Mode Preset. This initializes the analyzer by returning the

mode setup and all of the measurement setups in the mode to the

factory default parameters.

To preset the parameters that are specific to an active, selected

measurement, press Meas Setup, Meas Preset. This returns all the

measurement setup parameters to the factory defaults, but only for the

currently selected measurement.

The 3 Steps to Set Up and Make Measurements

All measurements can be set up using the following three steps. The

sequence starts at the Mode level, is followed by the Measurement

level, then finally, the result displays may be adjusted.

Table 1-1 The 3 Steps to Set Up and Make a Measurement

Step Action Notes

1. Select and Set Up

the Mode

a. Press Mode

b. Press a mode key, like

Spectrum Analyzer, W-CDMA

with HSDPA/HSUPA, or

GSM/EDGE.

c. Press Mode Preset.

d. Press Mode Setup

All licensed, installed modes

available are shown under the

Mode key.

Using Mode Setup, make any

required adjustments to the

mode settings. These settings

will apply to all measurements

in the mode.

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