RF Troubleshooting Guide_EVDO(R27) (1).pdf

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<ul><li><p> ALL RIGHTS RESERVED ALCATEL-LUCENT 2006 FOR INTERNAL USE ONLY USE PURSUANT TO COMPANY INSTRUCTIONS </p><p>1 X E V- D O R F P E R F O R M A N C E A N A LY S I S </p><p>&amp; T R O U B L E S H O O T I N G </p><p>G U I D E </p><p>REL 27.0 </p><p>RF TOOLS &amp; SERVICES SYSTEMS ENGINEERING GROUP </p></li><li><p> TA B L E O F C O N T E N T S </p><p>0. CHANGE HISTORY.............................................................................................................................. 8 </p><p>1. INTRODUCTION................................................................................................................................. 12 </p><p>2. USING THIS GUIDE ........................................................................................................................... 14 </p><p>3. OVERVIEW OF 1XEV-DO SYSTEM AND OPERATION............................................................. 16 </p><p>3.1 SYSTEM FUNCTIONAL BLOCKS ..............................................................................................16 3.1.1 Access Network ........................................................................................................... 17 3.1.2 Access Terminal .......................................................................................................... 20 </p><p>3.2 1XEV-DO SYSTEM OPERATION ...........................................................................................20 3.2.1 Forward link................................................................................................................ 21 3.2.2 Reverse Link................................................................................................................ 22 </p><p>4. SUMMARY OF PERFORMANCE RELATED FEATURES IN PRODUCT RELEASES .......... 23 </p><p>4.1 PERFORMANCE RELATED FEATURES IN R26.0...................................................................23 4.2 PERFORMANCE RELATED FEATURES IN R27.0...................................................................24 4.3 PERFORMANCE RELATED FEATURES SCHEDULED IN R28.0 ............................................26 </p><p>5. KPI OPTIMIZATION AND TROUBLESHOOTING ...................................................................... 28 </p><p>5.1 ESTABLISHED CONNECTION RATE ......................................................................................29 5.1.1 Call setup process ....................................................................................................... 30 </p><p>5.1.1.1 Fast Connect Calls ........................................................................................................ 32 5.1.2 RF access failures ....................................................................................................... 33 </p><p>5.1.2.1 Lack of RF coverage ..................................................................................................... 34 5.1.2.2 Excessive Pilots/Non-dominant Pilots .......................................................................... 35 5.1.2.3 Poorly constructed Neighbor Lists................................................................................ 36 5.1.2.4 Improper PN planning................................................................................................... 38 5.1.2.5 External Interference..................................................................................................... 39 5.1.2.6 Inadequate Search Window Size................................................................................... 41 5.1.2.7 Edge of coverage........................................................................................................... 42 5.1.2.8 RNC border issues ........................................................................................................ 43 </p><p>5.1.3 Failures due to faulty hardware.................................................................................. 44 5.1.4 Heavy Reverse Link traffic .......................................................................................... 44 5.1.5 TP overload................................................................................................................. 46 5.1.6 Maximum number of connections reached.................................................................. 47 5.1.7 Traffic Channel Activation failure .............................................................................. 49 5.1.8 Authentication error.................................................................................................... 49 5.1.9 High Processor Occupancy rates................................................................................ 50 </p><p>5.2 DROP CALL RATE ...................................................................................................................53 5.2.1 Lack of RF coverage ................................................................................................... 55 5.2.2 Excessive pilots/Non-dominant pilots ......................................................................... 56 5.2.3 Poorly constructed neighbor lists ............................................................................... 58 5.2.4 Improper PN planning ................................................................................................ 59 </p></li><li><p>1X EV-DO RF PERFORMANCE ANALYSIS &amp; TROUBLESHOOTING GUIDE </p><p>ALL RIGHTS RESERVED ALCATEL-LUCENT 2006 3 </p><p>5.2.5 External interference................................................................................................... 61 5.2.6 Insufficient search window size................................................................................... 62 5.2.7 Failures due to faulty hardware.................................................................................. 63 5.2.8 Heavy reverse link traffic ............................................................................................ 65 5.2.9 Maximum number of legs reached .............................................................................. 67 5.2.10 No resources at the candidate leg............................................................................... 68 5.2.11 High Processor Occupancy rates................................................................................ 69 5.2.12 Handoff failures .......................................................................................................... 70 5.2.13 Reverse link lost due to hybrid tuneaways .................................................................. 71 </p><p>5.3 DATA THROUGHPUT ...............................................................................................................73 5.3.1 Lack of RF coverage ................................................................................................... 74 5.3.2 Excessive pilots/Non-dominant pilots ......................................................................... 75 5.3.3 Poorly constructed neighbor lists ............................................................................... 77 5.3.4 Improper PN planning ................................................................................................ 79 5.3.5 External interference................................................................................................... 80 5.3.6 Insufficient search window size................................................................................... 82 5.3.7 Failures due to faulty hardware.................................................................................. 83 5.3.8 Heavy reverse link traffic ............................................................................................ 84 5.3.9 High forward link traffic ............................................................................................. 86 5.3.10 Hybrid mode................................................................................................................ 88 5.3.11 Backhaul restrictions .................................................................................................. 89 5.3.12 Handoff rejects ............................................................................................................ 90 5.3.13 Core IP network issues................................................................................................ 92 </p><p>APPENDIX A METRIC CROSS-REFERENCE .............................................................................. 93 </p><p>APPENDIX B OVERVIEW OF SPAT3G TOOL............................................................................. 96 </p></li><li><p>1X EV-DO RF PERFORMANCE ANALYSIS &amp; TROUBLESHOOTING GUIDE </p><p>ALL RIGHTS RESERVED ALCATEL-LUCENT 2006 4 </p><p>L I S T O F F I G U R E S FIGURE 1 FUNCTIONAL BLOCKS IN A ALCATEL-LUCENT 1XEV-DO SYSTEM............................... 16 FIGURE 2 FUNCTIONAL BLOCKS IN A ALCATEL-LUCENT 1XEV-DO OVERLAY ON A ALCATEL-</p><p>LUCENT 3G1X HIGH SPEED DATA NETWORK ....................................................................... 17 FIGURE 3 PROTOCOL STACK DIAGRAM FOR ALCATEL-LUCENT 1XEV-DO SYSTEM [9] .............. 20 FIGURE 4 CALL FLOW FOR AN AT INITIATED CONNECTION .......................................................... 31 </p><p>APPENDIX FIGURE 1 EXECUTIVE SUMMARY ................................................................................. 97 APPENDIX FIGURE 2 SM SUMMARY WINDOW AND PEG COUNT DETAILS .................................... 97 APPENDIX FIGURE 3 SM MAP ....................................................................................................... 98 APPENDIX FIGURE 4 SM TREND.................................................................................................... 99 APPENDIX FIGURE 5 ROP SUMMARY ALARMS ANALYSIS ....................................................... 100 APPENDIX FIGURE 7 TRX SUMMARY WINDOW .......................................................................... 101 APPENDIX FIGURE 8 NL ALERT SUMMARY ................................................................................ 102 </p><p>L I S T O F TA B L E S TABLE A-1 ESTABLISHED CONNECTION RATE METRIC CROSS REFERENCE ...................... 93 TABLE A-2 DROP CALL RATE METRIC CROSS REFERENCE ................................................ 93 TABLE A-3 DATA THROUGHPUT METRIC CROSS REFERENCE ............................................ 94 </p></li><li><p>1X EV-DO RF PERFORMANCE ANALYSIS &amp; TROUBLESHOOTING GUIDE </p><p>ALL RIGHTS RESERVED ALCATEL-LUCENT 2006 5 </p><p>List Of Abbreviations 2G Second Generation (IS95A/IS95B) 3G1x Third Generation 1.25MHz (IS2000) 3GPP2 Third Generation Partnership Project 2 </p><p>A10 Interface that carries user traffic between PCF and PDSN A11 Interface that carries signaling between PCF and PDSN A12 Interface that carries signaling (authentication) between PCF and AAA A13 Interface that carries signaling between source and target PCF AAA Authentication, Authorization and Accounting ACK Acknowledgement AHO Access Handoff AN Access Network AP Application Processor APHO Access Probe Handoff AR Assistance Request AT Access Terminal </p><p>BTS Base Transceiver Station </p><p>CAMSHO Channel Assignment into Soft Handoff CBR CDMA Baseband Radio CC Control Channel CDM CDMA Digital Module CLGC Closed Loop Gain Control CRC CDMA Radio Controller CTU Common Timing Unit </p><p>DQOS Data Quality of Service DRC Data Rate Channel </p><p>EMS Element Management System EV-DO Evolution Data Optimized EV-DO Rev 0 Evolution Data Optimized Revision 0 EV-DO Rev A Evolution Data Optimized Revision A EVM EV-DO Modem </p><p>FCA Failed Connection Attempts FER Frame Error Rate FLM Forward Link Modem FMS Flexent Mobility Server FTP File Transfer Protocol </p><p>GPS Global Positioning System GRE Generic Routing Encapsulation </p><p>HCS HDR Cell Site </p></li><li><p>1X EV-DO RF PERFORMANCE ANALYSIS &amp; TROUBLESHOOTING GUIDE </p><p>ALL RIGHTS RESERVED ALCATEL-LUCENT 2006 6 </p><p>HDLC High Level Data Link Control HDR High Data Rate HOM Handoff Matrix HRPD High Rate Packet Data </p><p>ID Identification IM Inter Modulation IP Internet Protocol </p><p>KPI Key Performance Indicator </p><p>LCP Link Control Protocol LIU Line Interface Unit LWS Lucent Worldwide Services </p><p>MAC Medium Access Control MCC Main CDMA Controller MCR Multi Carrier Radio MIP Mobile Internet Protocol MR Modification Request </p><p>NAK/NACK Negative Acknowledgement NVM Non Volatile Memory </p><p>OA&amp;M Operations, Administration &amp; Maintenance OHM Overhead Channel Manager OMC-RAN Operations and Maintenance Center Radio Access Network OMP Operations and Management Platform OOS Out of Service </p><p>PCF Packet Control Function PDA Personal Digital Assistant PDSN Packet Data Serving Node PPP Point-to-Point Protocol PSK Phase Shift Keying PSMM Pilot Strength Measurement Message PTT Push-to-Talk </p><p>QAM Quadrature Amplitude Modulation QoS Quality of Service QPSK Quadrature Phase Shift Keying </p><p>RAB Reverse Activity Bit RATI Random Access Terminal Identifier RF Radio Frequency RLM Reverse Link Modem RLP Radio Link Protocol RNC Radio Network Controller ROP Read Only Printer </p></li><li><p>1X EV-DO RF PERFORMANCE ANALYSIS &amp; TROUBLESHOOTING GUIDE </p><p>ALL RIGHTS RESERVED ALCATEL-LUCENT 2006 7 </p><p>RSSI Receive Signal Strength Indicator </p><p>SBEVM Single Board EV-DO Modem SCI Slot Cycle Index SM Service Measurements SNR Signal to Noise Ratio SNMP Simple Network Management Protocol SIP Simple Internet Protocol SPAT3G System Performance Analysis Tool 3G SU Software Update </p><p>TCA Traffic Channel Assignment TCC Traffic Channel Complete TCP Transmission Control Protocol TDU Time Delay Unit TP Traffic Processor </p><p>UATI Unicast Access Terminal Identifier UCR UMTS/CDMA Radio UDP User Datagram Protocol UNL Undeclared Neighbor List URC Universal Radio Controller </p><p>VoIP Voice over Internet Protocol </p></li><li><p>1X EV-DO RF PERFORMANCE ANALYSIS &amp; TROUBLESHOOTING GUIDE </p><p>ALL RIGHTS RESERVED ALCATEL-LUCENT 2006 8 </p><p>0. CHANGE HISTORY </p><p>Version Changes Date R21 Initial Release October 2003 </p><p>R22 Updates reflecting new service measurement counts and metrics, reference web sites, metrics cross-reference table and SPAT3G information for Release 22. </p><p>October 2004 </p><p>R23 Updates reflecting new service measurement counts and metrics for Release 23. Updates include: </p><p> Updated the guide with information about the new reverse link overload control translations and the corresponding peg counts </p><p> Introduced new chapter summarizing performance related features in R23 and R24. </p><p> Added new information to the hybrid mode section about SCI and MSM6500 chipset performance. </p><p> Added a new subsection on high processor occupancy rates Added a link for EV-DO release letters Updated appendix B with information about EV-DO specific features </p><p>in SPAT3G Updated acronyms list, references and the metrics cross-reference table </p><p>February 2005 </p><p>R24 Updates r...</p></li></ul>