Agilent Technologies E6701A Appendix B Troubleshooting, If Bler mode measurements have problems

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Appendix B: Troubleshooting

1.If the wireless device will not attach, check that:

1.1.Cable loss is correctly specified in RF IN/OUT Amplitude Offset table

1.2.The SIM is good and installed correctly

1.3.Cell power is sufficient (increase it up to -35dBm to overcome interference, or if an indirect RF connection is used between the Test Set and phone)

1.4.Try Coding Scheme CS-1. Go to the Call Setup Screen; Call Parms column; Menu 2 of 4 (More key); Coding Scheme (F11 key)

1.5.Maybe the wireless appliance is not capable of multislot configuration operation; if in doubt, try 1 down 1up. Go to the Call Setup Screen; Call Parms column; Menu 3 of 4 (More key); Multislot Config (F7 key)

1.6.This could relate to a connection parameter called TBF Frame Starting Position.

1.6.1.Change this parameter under call parameters menu 4

1.6.2.Try absolute or immediate frame starting position. The default is relative and not all mobiles support this.

1.7.Test Set displays IMSI warning:

GSM protocol warning; No IMSI received from MS (Using default IMSI)

1.7.1.This may be an error in the firmware of the phone.

1.7.2.The default IMSI is 001012345678901.

1.7.3.If this message is received, it is not possible to make a data connection unless a SIM with the default IMSI value is installed in the wireless device.

1.8.If you experience problems establishing a data connection specifically with the BLER Data Conn Type:

1.8.1.Try changing the setting of the LLC Frame Check Sequence from Valid to Corrupt. Go to the Call Setup Screen; Call Parms column; Menu 4 of 4 (More key); Connection Parameters (F4 key); scroll in Connection Parameters table to LLC Frame Check Sequence.

1.8.2.Try changing the setting of the BLER Block Polling Interval (default is 32; range is1 to 32). Go to the Call Setup Screen; Call Parms column; Menu 4 of 4 (More key); Connection Parameters (F4 key); scroll in Connection Parameters table to BLER Block Polling Interval.

2.If BLER mode measurements have problems:

2.1.Attach problem solutions still apply; see 1. Above

2.2.MS must be capable of GMM_INFORMATION messaging.

2.2.1.This is the type of message we use to provoke an ACK/NACK from the mobile.

2.2.2.If the mobile is not capable of GMM information messaging, then the data connection will timeout.

2.2.2.1.One possible solution: set the LLC frame check sequence to Corrupt. This will stop the message getting to GMM and the mobile should still provide the ACK/NACK. Go to the Call Setup Screen; Call Parms column; Menu 4 of 4 (More key); Connection Parameters (F7 key); scroll in the Connection

 Copyright 2002 Agilent Technologies.

10001810-E6701A Tutorial LAN Connection

All Rights Reserved.

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Rev. 1.2; Feb. 14, 2002

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Contents
Page Table of Contents Appendix a Installing a WAP Gateway into a PC Appendix B Troubleshooting Appendix C. GlossaryAbout This Tutorial IntroductionEquipment Required for this Tutorial Normal LAN Cable Quantity Setup Test Set Setup Network SetupLAN Addresses Set the RF In/Out Amplitude Offset Set the Date and Time OptionalSet the Cell and Call Parameters Windows 98 and Dhcp Address PC SetupWindows 98 and Static Address Page Windows 2000 and Dhcp Address Set up NetworkWindows 2000 and Static Address Determine PC IP address Verify PC Settings Set Up Your Wireless Device On the WAP Settings menu, scroll to 1Primary IPVerify that Your Device Will Perform an Attach Motorola Timeport phone exampleOn the WAP Settings menu, scroll to 2Primary Port Set the Device’s Primary PortSet Data Bearer to Gprs Set WAPlite Gateway Address in Your DeviceSetup is now complete Product Feature Protocol Logging Product Feature Screen Image CaptureHere are some important points about the log data View the log data on the PC Save the Log to the PCLog Data Using the Test Set’s Front Panel View the saved logProduct Feature Ping Pinging the DUT the phone or wireless devicePinging an Alternate Device such as your PC on the LAN Product Feature Data Channel If your LAN does not use a firewall to access the InternetScroll to http//local/waplite.wml Motorola Example Motorola Timeport Example Product Feature Additional Connection Parameters Appendix a Installing a WAP Gateway into a PC Infinite WAPLite Gateway by Captaris IncTo download the WAPlite software To load the WAPlite software on your PCIf the wireless device will not attach, check that Appendix B TroubleshootingIf Bler mode measurements have problems Etsi Test Mode measurements have problems If Internet Explorer cannot access the 8960 WelcomeBER measurement errors Phone can’t access browse real Internet sitesPhone won’t transmit IP datagrams in Data Channel functions Page Appendix C. Glossary
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