Sistema iden

RF AND RF STATISTICS STATISTICS AND SOLUTIONS SOLUTIONS

RF Link Optimization Link Optimization RF

WP2003-011-2 June 19, 2006

WP2003-011-2 June 19, 2006 June 19, 2006

White Paper

RF Statistics and Solutions

iDEN White Paper

Table of ContentsINTRODUCTION....................................................................................................................................6 DROPPED CALLS ..................................................................................................................................7 INTERCONNECT LOSS OF TRANSMISSION ................................................................................................7 Channel Failure.................................................................................................................................8 Channel Disconnect ...........................................................................................................................9 HANDOVER DROPPED CALLS ................................................................................................................10 Possible Causes of HandoverDrops................................................................................................11 DROP CALL STATISTICAL FORMULAS ...................................................................................................11 Pre-SR11 Formulas..........................................................................................................................11 SR11Formulas.................................................................................................................................12 HANDOVER OPERATION AND PERFORMANCE .......................................................................14 SR11 NEIGHBOR CELL HANDOVER STATISTICS ....................................................................................14 Neighbor Cell HandoverRequests...................................................................................................15 QUALITY DRIVEN HANDOVERS .............................................................................................................16 Handover Types ...............................................................................................................................16 SubscriberInitiated Handovers .......................................................................................................17 FNE Initiated Handovers .................................................................................................................19 RequestRate.....................................................................................................................................21 Attempt Blocking ..............................................................................................................................21 Attempt Failures...............................................................................................................................24 Success Rate.....................................................................................................................................25 RF CONGESTION RELIEF HANDOVERS ..................................................................................................26 Standard CR Metrics and Thresholds ..............................................................................................28 CR Call Shedding Decisions............................................................................................................29 CARRIER BASED STATISTICS ........................................................................................................30 MS COVERAGE REPORT ........................................................................................................................30 UPLINK CARRIER STATISTICS...