Agilent Technologies E6651A User manual

Agilent Technologies
Mobile WiMAX Test Set
TM
Agilent E6651A
User’s Guide

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First Edition, July 2007
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E6651A User’s Guide 3
Contents
1 Introduction
Product Overview 8
Base Station Emulator (BSE) 8
Signal Analyzer (SA) 8
Signal Generator (SG) 8
Functions and Features 9
E6651A Features 9
General Specifications 11
Agilent Sales and Service Offices 13
2 Getting Started
Basic Configuration 16
Front Panel 16
Rear Panel 19
Measurement Screen Configuration 21
Setting Window 22
Menu Tree Configuration 24
Basic Operation 26
Turning the Power ON 26
Operational Mode Selection 27
Turning the Power OFF (Normal Termination) 28
Turning the Power OFF (Abnormal Termination) 29
3 Base Station Emulator Mode
Interfacing With the Subscriber Station 32
Uplink Padding Test 35
Downlink UDP Test 37
Downlink Ping Test 38
CINR Test 39
Ranging Test 41
PMC-RSP Test 42
Protocol Function Test 43
Power Control Test 45
Hand-over Test function 48
Setting Parameters 53

4E6651A User’s Guide
Setting General BSE configuration parameter 53
Setting Test Parameters 54
Terminating BSE Mode Operation 56
4 Signal Analyzer Mode
Measurement Preparation 58
SA Mode Setup Procedure 58
System Settings 58
Frequency Menu 61
Amplitude Menu 62
Measurement Menu 63
Modulation Analysis 64
Mobile WiMAX Modulation Accuracy Analysis Window 64
Spectrum Analysis 66
Spectrum Measurement Window 66
Marker Menu 69
Peak Menu 70
Flatness Analysis 71
5 Signal Generator Mode
Signal Generator Mode 74
SG Mode Setup Procedure 74
6 Remote Interface (API) Programming Command Reference
Creating a Test Program 76
Step 1 - Copy and Reference the Dynamic Link Library (DLL) 77
Step 2 - Install the IPX LAN protocol 77
Step 3 - Initialize the E6651A Interface 79
Step 4 - Configure the Measurement Parameters 81
Step 5 - Perform the Test 81
Step 6 - Get the Measurement Results 81
Step 7 - Close the Session 81
Command Reference 82
System information functions 84
General functions 85
Spectrum Mode 99
Flatness 116
BS Emulator Mode 124
BS Emulator Functions 136
BS Emulator Test Functions 139
UL Padding Test 141

E6651A User’s Guide 5
DL UDP Test 143
DL Ping Test 146
Power Control Test 150
Tools Functions 169
Functions used in V1.5 170
A Appendix A - Network Entry Procedure
Network Entry Procedure Overview 172
Network Entry Procedure Detail 174
Downlink Synchronization and Uplink Parameter Information 174
Initial Ranging Procedure Execution and Basic Capabilities
Negotiation 176
Registration Procedure 180
Periodic Ranging for Connection Maintenance 182
REP-REQ message Setting 183
Profile Selection 185
B Appendix B - Sample Usage Procedures
Turning the Power On 188
Starting the Program 188
Setting the Center Frequency 189
Setting the Attenuation 190
Setting the Amplitude 191
Enabling MOD and RF Modes 192
Starting and Stopping BSE Mode 193
Setting and Modifying the Modulation Scheme 194
Starting an Uplink or Downlink Test 195
Performing Modulation Analysis in SA Mode 196
Performing Spectrum Analysis in SA Mode 197
Attenuation Setting Recommendations 198
Abbreviations and Acronyms 199

6E6651A User’s Guide

7
Agilent E6651A Mobile WiMAX Test Set
E6651A User’s Guide
Agilent Technologies
1
Introduction
Product Overview 8
Functions and Features 9
General Specifications 11
Agilent Sales and Service Offices 13
This document describes the operation of the E6651A Test Set, a Mobile
WiMAX 802.16e Subscriber Station Tester. This product is used for
protocol verification and performance measurement of Mobile WiMAX
Subscriber Stations (SS). The E6651A Test Set was designed to be
operated as a standard Mobile WiMAX base station, and is also capable of
analyzing and generating Mobile WiMAX signals.

8E6651A User’s Guide
1Introduction
Product Overview
The E6651A Test Set is designed to test and analyze the
performance and signaling of Mobile WiMAX subscriber
stations based on the IEEE 802.16e standard. The Test Set
consists of three major operating modes:
Figure 1 The Agilent E6651A Mobile WiMAX Test Set
Base Station Emulator (BSE)
In Base Station Emulator (BSE) mode, the Test Set simulates
the operation of a Mobile WiMAX base station.
Signal Analyzer (SA)
In Signal Analyzer (SA) mode, the Test Set can be used to
analyze Mobile WiMAX uplink signals using modulation,
spectrum and flatness analysis. Modulation Analysis mode
displays the OFDM signal in both frequency and time
domain. The Spectrum Analysis functionality, implemented
using a Fast Fourier Transform (FFT) algorithm, displays the
measured WiMAX signal in the frequency domain. Flatness
Analysis enables comparison of power levels of the spectral
components.
Signal Generator (SG)
In Signal Generator (SG) mode, the Test Set generates
standard Mobile WiMAX uplink and downlink signals.

Introduction 1
E6651A User’s Guide 9
Functions and Features
E6651A Features
•IEEE 802.16e OFDMA Mobile WiMAX subscriber station
tester
•Real- time Mobile WiMAX downlink signal modulation
•Real- time Mobile WiMAX uplink demodulation
•Base station emulation with MAC, protocol stack
•TDD synchronization (auto- switching) of signal generator
and signal analyzer
•Ranging code detection
•Various preamble, FCH, DL- MAP, UL- MAP, burst
configuration settings
•DL PUSC, DL FUSC, UL PUSC
Mobile WiMAX radio
(PHY) measurements
•OFDM constellation and EVM (BPSK, QPSK, 16QAM,
64QAM)
•UL data EVM
•Error vector spectrum, error vector versus time
•CCDF (complimentary cumulative distribution function)
•Channel power, occupied bandwidth
Transmitter •Modulation and coding
•Ranging support
•Power level control
•Synchronization
•Maximum output signal
•Frequency accuracy
•Channel bandwidth measurement
•Spectral flatness
•Relative constellation error (EVM)

10 E6651A User’s Guide
1Introduction
Receiver •Maximum tolerable signal
•Maximum input signal
•Sensitivity
•Cyclic prefix
•Preambles
•Frame duration timing
•RSSI
•BER versus CINR
Mobile WiMAX
MAC test items
•Response time for MAC management request message
•Initial ranging procedure verification under exceptional
RF conditions
•Dynamic service flow status for given conditions
•SS MAC layer verification and performance test