822-WiMAX Base Station Functional Testing_Oct 15 2010

Confidential & Proprietary Limited Distribution to Authorized Persons Only

Copyright © 2010 Clearwire Corporation All Rights Reserved

Section 822 October 15, 2010

Methods and Procedures Handbook For Field Technicians

WiMAX Base Station Functionality Testing

Table of Contents GENERAL INFORMATION ........................................................................................................................... 3

Introduction ................................................................................................................................................ 3 Reason for Reissue ................................................................................................................................... 3 System Requirements ............................................................................................................................... 3

CONNECTION MANAGER CONFIGURATION ........................................................................................... 5 Introduction ................................................................................................................................................ 5 Connection Manager Configuration ........................................................................................................... 5

WITT INSTALLATION ................................................................................................................................... 9 Introduction ................................................................................................................................................ 9 Installation of the WiTT Software .............................................................................................................. 9

BECEEM KANNON INSTALLATION .......................................................................................................... 13 Introduction .............................................................................................................................................. 13 Installation of the Kannon Software ......................................................................................................... 13

WIMAX BASE STATION FUNCTIONALITY TEST ..................................................................................... 17 Introduction .............................................................................................................................................. 17 WiMAX Base Station Functionality Test Procedure ................................................................................ 17

Section 822 WiMAX Base Station Functionality Testing

October 15, 2010 Clearwire Training and Standards

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WiMAX Base Station Functionality Testing Section 822

Clearwire Training and Standards October 15, 2010

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GENERAL INFORMATION

Introduction Section 822 describes the process for performing initial drive testing of a WiMAX Base Station using the WiMAX Tester Tool (WiTT).

Reason for Reissue

Corrected minor typographical errors

System Requirements

• Sun Microsystems Java version 1.5.0. The Java platform may be obtained from the Sun

Microsystems web site at: http://java.sun.com/javase/downloads/



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5

CONNECTION MANAGER CONFIGURATION

Introduction

To prevent customers from accidently connecting to the base station under test, the site is initially configured for Clearwire’s private NAP ID. To perform functional testing of the base station, the connection manager must be configured accordingly.

The NAP ID (network access provider identification) is an identifier that is part of the BSID (base identification) broadcast in the downlink by each sector. As part of network entry, a device reads this NAP ID in order to determine whether to complete network entry on the site. NAP IDs can be public (for commercial use) or private (for testing). During commissioning, a private NAP ID is used to prevent customers from connecting to the un-commissioned sector. After EMS bootstrap, the connection manager is then reconfigured for the commercial NAP ID.

Connection Manager Configuration

Use the following procedure to configure the “Clear” Connection Manager for “private” testing of the base station. NOTE: This procedure assumes the SmithMicro “Clear” Connection Manager software has been loaded onto the technician’s laptop computer.

Step Action Result

1

To begin, “right-click” anywhere on the Connection Manager screen.

A Windows dialog menu will be displayed.

2

Select “Preferences” and then “Profiles” from the menu.

The Profiles screen will be displayed/

3 Next, hold the “Ctrl” and “Shift” keys down and click the “Add” button.

A “profile create” window will be displayed.

Continued on the next page



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CONNECTION MANAGER CONFIGURATION, CONTINUED

Connection Manager Configuration - Continued

Step Action Result

4

Next, highlight the WiMAX profile name and click the “Add” button.

A WIMAX Profile Options window will be displayed.

5

In the Authentication portion of the window, locate and click the check-box for “Override Identity” as shown.

The “Override Identity” check-box is checked.

6

Next, select the “TLS” certificate from the Eap Method drop-down menu as shown.

The TLS certificate is selected.

7

Next, locate and click on the “Certificate” button.

The Certificate Selection window will be displayed.

8

Click on the “Attempt to load Embedded Device Cert First” check box and then click the “OK” button.

The Certificate Selection window will be closed.




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Step Action Result

9

Next, under the “Network Access Provider List (Optional)” portion of the window, locate and click on the “Add” button.

The Network Access Provider ID window will be displayed.

10

Enter the desired market NAP ID and then click the “OK” button.

The Network Access Provider ID window closes.

11

Under the Network Scanning portion of the display, edit and/or add market defined frequencies as required.

N/A

12

Next, click the “Next” button

A General Window will be displayed.




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Step Action Result

13

Type “Private” into the “Profile Name” text entry field and select “Automatic” in the “Connection Options” drop-down menu.

14

Next, locate and click on the “Finish” button at the bottom of the window.

The newly created “Private” profile will be displayed in the Profiles window.

15

Next, highlight the “Private” profile and then click the “Up” button.

The Private profile is moved to the top of the profiles list.

16

The Connection Manager has been configured. Click the “Close” button at the bottom of the window.

Configuration complete



9

WITT INSTALLATION

Introduction

Some of the features of WiTT include: • Real-time display of GPS, baseband, MAC messages, and OS throughput statistics. • Logging of GPS, baseband, MAC messages, and OS throughput statistics to a CSV

file for processing. • Real-time map tracking while displaying the current position colored per current

RSSI, CINR, DL-Tput, and UL-Tput (and more) color scale. • Ability to load additional map images and select maps on the fly. • Map zooming and centering per your current location. • Ability to save the current map image. • Visual display of handovers and custom text tagging at current position. • Audible indication if network entry, network drop and handovers. • Full-screen mode of real-time map for presentations. • Iperf integration

Installation of the WiTT Software

Use the following procedure to install the WiTT Software on the technician’s laptop computer. NOTE: You need to have the Cisco VPN running to access these files NOTE: The current Drive test software should be obtained from the Implementation & Training Portal NOTE: The required JAVA load is on the Implementation & Training Portal Current Drive Test Software

Step Action Result

1

Once the WiTT software has been downloaded, open Windows Explorer and browse to the WiTT installation file location. Once the DapSat installation file has been identified, “double-click” on the “WiTT-install.jar” file name.

NOTE: Ensure the latest WiTT installer is obtained. If a previous WiTT version was installed, uninstall the previous version prior to proceeding.

An IzPack Installation dialog box is displayed.




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WITT INSTALLATION, CONTINUED

Installation of the WiTT Software - Continued

Step Action Result

2

Once the IzPack Installation Dialog window is displayed, “click” the “Next” button located in the lower right-hand corner of the window.

3

In the “Select the installation path:” text entry box. Edit the desired installation path or location and “click” on the “Next” button to continue.

A dialog box will request confirmation of the desired installation path.

4

Once the Message dialog box is displayed, confirm the ”target directory” and then locate and click on the “OK” button.

The IzPack Installation dialog box will confirm the package(s) to be installed.




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WITT INSTALLATION, CONTINUED

Installation of the WiTT Software - Continued

Step Action Result

5

Locate and “click” on the “Next” button.

The IzPack dialog box will confirm the installation of program Shortcuts.

6

Next, “check” or “un-check” the “Setup Shortcuts” as desires and then locate and “click” on the “Next” button.

The installation WiTT occurs.

7

Once the installation is complete, locate and “click” on the “Next” button.

Installation is complete.

8

Once installation is complete, locate and “click” on the “Done” button

The IzPack dialog box will close upon successful installation.



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13

BECEEM KANNON INSTALLATION

Introduction

The Beceem Kannon tool can be used in conjunction with WiTT during the Base Station Functionality testing of a new WiMAX site.

Installation of the Kannon Software

Use the following procedure to install the Kannon Software on the technician’s laptop computer. NOTE: The current software can be obtained from the Implementation & Training Portal folder at: Kannon Tool

Step Action Result

1

Open an Internet browser and point the browser to the Implementation & Training Portal Folder at: Kannon.Zip

A Microsoft Office dialog window will be displayed.

2

Once the Microsoft Office dialog window is displayed, locate and “Click” on the “OK” button.

The file download will begin, then the Opening BECEEM_KANNON.zip dialog window will be displayed.

3

Ensure the “Save File” button is selected, then “Click” the “OK” button.




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BECEEM KANNON INSTALLATION, CONTINUED

Installation of the Kannon Software - Continued

Step Action Result

4

Open Windows Explorer and browse to the location where the Beceem Kannon zip file was previously downloaded to and “double-click” on the file.

A Windows dialog screen will be displayed.

5

Locate and “Click” on the “Extract all files” link on the left-hand side of the dialog window.

An Extraction Wizard window will be displayed.

6

Locate and “Click” on the “Next” button.

N/A




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Step Action Result

7

Browse to the “C:” hard drive on the laptop computer and “Click” the “OK” button.

N/A

8

Next, “Click” on the “Next” button.

The file extraction will proceed.

9

Once the file extraction is complete, “Click” the “Finish” button.

File extraction is complete.

10

Next, open Windows Explorer and browse to the Kannon folder located within the Beceem folder on the C: hard drive.

N/A




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Step Action Result

11

Locate the file “Kannon.exe”. “Right-click” then select “Send To”, Desktop (create shortcut)”

A desktop short cut for Kannon is created.

12

The Windows browser may be closed.

The Windows explorer is closed.



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WIMAX BASE STATION FUNCTIONALITY TEST

Introduction

Use the following procedure to complete the basic functionality test for a new WiMAX Base Station.

WiMAX Base Station Functionality Test Procedure

NOTE: The following applications must be open to perform the WiMAX Base Station Functionality test:

• Clearwire Connection Manager • DapSAT (OpenVPN connection required) • Kannon Beceem WiMAX Diagnostics • Clearwire WiTT

NOTE: The following files must be obtained from RF Engineering to perform the WiMAX Base Station Functionality test:

• Local market WiTT “bases.xml” file. THIS FILE MUST BE LOCATED IN THE WiTT DIRECTORY.

• Site specific “.tif” files NOTE: The Excel template file must be obtained to document the Base Station Functionality test:

Step Action Result

1

To start WiTT, “double-click” on the WiTT icon located on the desktop or select “Start”, “Programs”, “Clearwire”, “Witt”, “Witt”.

The WiTT dialog window will be displayed.

2

Ensure the Clearwire Connection Manager base station connection has been established.

N/A

3 Ensure the USB-GPS Receive adapter is connected to an available USB port on the technician’s laptop computer.

N/A




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WIMAX BASE STATION FUNCTIONALITY TEST, CONTINUED

WiMAX Base Station Functionality Test Procedure - Continued

Step Action Result

4

In the upper-left hand corner of the Witt screen, click and select the desired “GPS Port” and “Baud Rate”.

The serial port and baud rate is determined to proper USB-GPS Receive adapter communication.

5

Next, from the menu bar, locate and click on “Manage Maps”

The Manage Maps dialog window will be displayed

6

Next, “right-click” in the Manage Maps dialog window and select “Add”.

A new map line is displayed in the Manage Maps dialog window.

7 In the Manage Maps “Double-Click” on the new map line.

An Import Map Image dialog window will be displayed




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Step Action Result

8

Browse within the Import Map Image dialog window and select the desired map image .tif file.

The desired map image file is selected.

9

Once the desired .tif file has been identified, locate and Click on the “Open” button.

10

Next, double-click on the “New Map” file name and rename to the appropriate file name.




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Step Action Result

10

Once the .tif fiel has been identified and renamed, locate and click on the “OK” button.

The Map Management dialog window will close and the main WiTT dialog window will be displayed.

11

Next, locate and click on the “Select Map” drop-down menu and select the desired site location.

The map display will update and the desired site will be displayed.

12

Once the desired site has been selected, reduce the Sector Size to approximately “0.4” Km

The sector size is up dated.

13

In the lower-left hand corner of the WiTT dialog window, locate and “click” on the “Expert” button as shown.

Expert mode has been selected.




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Step Action Result

14

Next, in the lower-right hand corner of the WiTT dialog window, locate and “click” on the “Start Monitor”

15

Next, in the lower-right hand corner of the WiTT dialog window, locate and “click” on the “Start Log”

16

Verify the Latitude and Longitude is displayed correctly for the site under functional test. NOTE: Additional information such as distance from the site, Receive Signal Strength Indicator (RSSI), Carrier/Interference and Noise Ratio (CINR) and Frequency is also displayed in the measurements are of the WiTT dialog window.

NOTE: The minimum values for a successful functional test are: • RSSI greater than -75 dBm • CINR of 20 dB or better




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Step Action Result

17

Locate and Click on the “Clear Map” button located in the upper-right hand area of the WiTT dialog window.

A Clear Map dialog window will be displayed.

18

Once the “Clear Map” dialog window is displayed, locate and Click on the “OK”

The previous drive tracking points are cleared from the map and only the present position is displayed.

19

With the previous drive track cleared, perform a “print screen” capture of the WiTT dialog window and past into the Excel spreadsheet template file.

NOTE: The image below is a sample of the print screen only. The actual print screen image must be pasted into the Excel spreadsheet file.




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Step Action Result

20 Next, while still connected to the site, open an internet browser such as “Internet Explorer” or “Mozilla FireFox”.

The internet browser is displayed.

21

Point the Internet browser to Speedtest.net http://www.speedtest.net/

The Speedtest.net internet web page is displayed.

22

“Click” on the pyramid for the area of the desired test.

The speed test begins.

23

Annotate the speed test results in the Excel spreadsheet Enter the following values into the spreadsheet:

• Ping Time • Downlink Speed • Uplink Speed

Keep the Internet browser open.

N/A




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Step Action Result

24

Overlay the Beecem Kannon window and the Clearwire Connection Manager window on the Internet browser. On the Kannon window, locate and “Click” on the “BSTracking” tab.

Once the three windows are all displayed, perform a screen capture and paste it into the Excel spreadsheet.

The sector frequency and Preamble ID is displayed on the Kannon screen. The Clearwire Connection Manager window indicates an active data collection at the time of the screen shot. The Speed test indicates the Ping and uplink/downlink speeds of the sector.

NOTE: The image below is a sample of the print screen only. The actual print screen image must be pasted into the Excel spreadsheet file.




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Step Action Result

25

On the Kannon software utility, “Click” on the “MAC Debug”

and annotate the “Main & Diversity – RSSI” and “Test Point CINR” values into the Excel spreadsheet.

N/A

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To obtain the individual Main and Diversity RSSI measurements, begin by starting DapSat. Once the DapSat window is open, select “SSH” and then enter the “IP Address”, “Username” and “Password” for the site under test and “Click” the “Connect” button.

The connection will be established to the site being tested.

Example:




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Step Action Result

27

Highlight the “Sector X Main/Div Branch Check” and “Click” the “Go” button.

Where “X” is the sector under test. Verify that the two Small Head (DAP) devices are transmitting. NOTE: The actual Device Handle numbers will vary Example: Device Handle: X

The device information is displayed in the Command Output portion on the DapSat window.

28

Highlight the “Turn off sector X transmitters” by “Clicking” in the “expand/collapse triangle”.

Where “X” is the sector under test.

The selection is expanded.

29

Next, highlight the “Disable sector X div branch” and “Click” the “Go” button.


The Disable command is executed for the div branch selected.




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Step Action Result

30


Where “X” is the sector under test. Verify that the previously selected Small Head (DAP) device is NOT transmitting. NOTE: The actual Device Handle numbers will vary Example: Device Handle: X


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and annotate the “Main Only – RSSI” value into the Excel spreadsheet.

N/A




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Step Action Result

32

Highlight the “Turn on sector X transmitters” by “Clicking” in the “expand/collapse triangle”.



33

Next, highlight the “Enable sector X div branch” and “Click” the “Go” button.


The sector X div branch transmitter is re-enabled.

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Step Action Result

35

Highlight the “Turn off sector X transmitters” by “Clicking” in the “expand/collapse triangle”.



36

Next, highlight the “Disable sector X main branch” and “Click” the “Go” button.


The Disable command is executed for the main branch selected.

37


Where “X” is the sector under test. Verify that the previously selected Small Head (DAP) device is NOT transmitting. NOTE: The actual Device Handle numbers will vary Example: Device Handle: X





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Step Action Result

38


and annotate the “Diversity Only – RSSI” value into the Excel spreadsheet.

NOTE: The data entered between the “Main Only – RSSI” and the “Diversity Only – RSSI” fields should not vary more than 4 dB. Any variance of more than 4 dB indicates a hardware problem that must be investigated.

39

Highlight the “Turn on sector X transmitters” by “Clicking” in the “expand/collapse triangle”.






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Step Action Result

40

Next, highlight the “Enable sector X main branch” and “Click” the “Go” button.


The sector X main branch transmitter is re-enabled.

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42 Complete the previous steps for all antenna faces of the base station under test and enter the data collected on the Excel spreadsheet.

N/A




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Step Action Result

43

Once all stationary signal strength measurements and speed tests have been accomplished, drive a pre-determined route through and between each sector assuring handouts occur between each sector. To accomplish the hand-off verification, ensure the laptop computer speaker is enabled and the Witt Software utility is running with the “Start Monitor” and “Start Log” buttons activated.

While driving, listen for the laptop computer to annunciate the hand-offs.

The data capture is initiated.

44

Once all hand-off scenarios have been captured and the drive route has been completed, “Click” on the “the “Stop Monitor” and “Stop Log” buttons.

The data capture is terminated. All programs can be closed jupon completion of the functional test.




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Step Action Result

45

Open Windows Explorer and browse to the log file folder located in the WiTT folder under Program Files:

Review the log file created to ensure all hand-off criteria are acceptable.

Ensure the log file is archived for future reference.

N/A

46 Functional Test Complete.

N/A




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Documents

822-WiMAX Base Station Functional Testing_Oct 15 2010