【資料名稱】：BSC_Database_Parameter_Planning_&_Engine

【資料作者】：Eckardt Bertermann

【資料日期】：2010-4-19

【資料語言】：英文

【資料格式】：PDF

【資料目錄和簡介】：

1 DATABASE BR9.0 ...................................................................................................................................... 9
1.1 BR9.0 OBJECT TREE OF FUNCTIONAL BSC DATABASE OBJECTS ................................................................. 9
1.2 BSC DATABASE COMMANDS AND PARAMETERS................................................................................. 11
APPENDIX ................................................................................................................................................ 476
2.1 HANDOVER THRESHOLDS & ALGORITHMS .............................................................................................. 476
2.1.1 Functional Diagram Handover Thresholds for Inter-cell Handover and Intra-cell Handover (level,
quality and power budget) .................................................................................................................... 476
2.1.2 Rules: Handover Thresholds for Inter-cell Handover and Intra-cell Handover (level, quality and
power budget), Power Control disabled ............................................................................................... 477
2.1.2.1 Inter-cell/Inter-system Handover due to level ........................................................................................ 477
2.1.2.1.1 Handover Decision / Handover Trigger Conditions ....................................................................... 477
2.1.2.1.2 Target Cell List Generation .......................................................................................................... 478
2.1.2.1.3 Target Cell Ranking (HCS disabled) ............................................................................................. 479
2.1.2.1.4 Target Cell Ranking with HCS....................................................................................................... 482
2.1.2.1.4.1 Ranking of 3G target cells within 3G sublist .............................................................................. 482
2.1.2.1.4.2 Ranking of 2G target cells within 2G sublist - Ranking Method 0 .............................................. 483
2.1.2.1.4.3 Ranking of 2G target cells within 2G sublist - Ranking Method 1 .............................................. 484
2.1.2.1.4. Resulting ranking of 2G and 3G target cells and sublists ............................................................ 485
2.1.2.2 Intra-cell handover (quality).................................................................................................................. 487
2.1.2.3 Inter-cell/Inter-system Handover due to quality .................................................................................... 489
2.1.2.3.1 Handover Decision / Handover Trigger Conditions ...................................................................... 489
2.1.2.3.2 Target Cell List Generation .......................................................................................................... 490
2.1.2.3.3 Target Cell Ranking (HCS disabled) ............................................................................................ 491
2.1.2.3.4 Target Cell Ranking with HCS...................................................................................................... 491
2.1.2.4 Inter-cell/Inter-system Handover due to distance................................................................................. 492
2.1.2.4.1 Handover Decision / Handover Trigger Conditions ...................................................................... 492
2.1.2.4.2 Target Cell List Generation .......................................................................................................... 492
2.1.2.4.3 Target Cell Ranking (HCS disabled) ............................................................................................ 493
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2.1.2.4.4 Target Cell Ranking with HCS...................................................................................................... 493
2.1.2.5 Inter-cell/Inter-system Handover due to better cell (power budget handover) ...................................... 494
2.1.2.5.1 Handover Decision / Handover Trigger Conditions ...................................................................... 494
2.1.2.5.1.1 Special Power Budget Calculation for calls in inner area of Concentric Cells............................ 495
2.1.2.5.2 Target Cell List Generation (HCS disabled) ................................................................................. 497
2.1.2.5.3 Target Cell Ranking (HCS disabled) ............................................................................................ 498
2.1.2.5.3.1 Speed sensitive handover enabled ........................................................................................... 499
2.1.2.5.4 Handover Initiation and Target Cell List Generation with HCS ..................................................... 500
2.1.2.5.5 Target Cell Ranking with HCS...................................................................................................... 501
2.1.2.5.6 Speed sensitive handover enabled ................................................................................................... 501
2.1.2.6 Inter-system Handover due to sufficient coverage ............................................................................... 502
2.1.2.6.1 Handover Decision / Handover Trigger Conditions & Target Cell List Generation ....................... 502
2.1.2.6.2 Target Cell Ranking (HCS disabled) ............................................................................................ 503
2.1.2.6.3 Speed sensitive handover enabled .............................................................................................. 503
2.1.2.6.4 Target Cell Ranking with HCS...................................................................................................... 504
2.1.2.6.5 Speed sensitive handover enabled (with HCS) ............................................................................ 504
2.1.2.7 Forced Handover due to directed retry, preemption or O&M intervention ............................................ 505
2.1.2.7.1 Handover Decision / Handover Trigger Conditions ...................................................................... 505
2.1.2.7.2 Target Cell List Generation .......................................................................................................... 505
2.1.2.7.3 Target Cell Ranking (HCS disabled) ............................................................................................ 506
2.1.2.7.4 Target Cell Ranking with HCS...................................................................................................... 506
2.1.2.8 Fast Uplink Handover (Intra-BSC only) ................................................................................................ 507
2.1.2.8.1 Handover Decision / Handover Trigger Conditions ...................................................................... 507
2.1.2.8.2 Target Cell List Generation .......................................................................................................... 507
2.1.2.8.3 Target Cell Ranking....................................................................................................................... 508
2.1.2.9 Inter-cell Handover due to BSS Resource Management Criteria (Traffic HO) ..................................... 509
2.1.2.9.1 Handover Decision / Handover Trigger Conditions ...................................................................... 509
2.1.2.9.2 Target Cell List Generation .......................................................................................................... 513
2.1.2.9.3 Target Cell Ranking (HCS disabled) ............................................................................................. 513
2.1.2.9.4 Target Cell Ranking with HCS...................................................................................................... 514
2.2 REPORTING, DISPLAY AND BTS INTERNAL HANDLING OF RSCP VALUES FROM 3G NEIGHBOUR CELLS....... 515
2.3 SEQUENCE OF HANDOVER TYPES WITHIN THE HANDOVER DECISION ALGORITHM IN THE BTS................... 517
2.4.1 Functional Diagram: Power Control Thresholds - Power Increase / Power Decrease (Classic
Power Control) ..................................................................................................................................... 518
2.4.2 Rules: Power Control Thresholds: Power Increase / Power Decrease...................................... 519
2.4.2.1 Power Increase ................................................................................................................................... 519
2.4.2.2 Power Decrease.................................................................................................................................. 519
2.4.3 Classic and Adaptive Power Control .......................................................................................... 521
2.4.3.1 Introduction .......................................................................................................................................... 521
2.4.3.2 Classic Power Control decision process .............................................................................................. 521
2.4.3.3 Adaptive Power Control decision process............................................................................................ 522
2.4.3.4 Differences between CLASSIC and ADAPTIVE power control decision .............................................. 523
2.4.3.5 Functional sequence of a BS and MS power control procedure........................................................... 525
2.4.3.5.1 BS power control procedure......................................................................................................... 525
2.4.3.5.2 MS power control procedure ........................................................................................................ 526
2.4.3.6 Comparison of timing behaviour of different Power Control types - MS Power Control, BS Power
Control, classic and adaptive ............................................................................................................................ 527
2.4.3.7 Further differences between CLASSIC and ADAPTIVE Power Control ............................................... 529
2.4.3.8 Interaction of Power Control Measurement Preprocessing and Power Control Decision .................... 530
2.5 INTERWORKING OF HANDOVER AND POWER CONTROL............................................................................ 531
2.5.1 Functional Diagram: Inter-cell Handover and Intra-cell Handover, Power Increase and Power
Decrease.............................................................................................................................................. 531
2.5.2 Rules.......................................................................................................................................... 532
2.6 SERVICE DEPENDENT HANDOVER AND POWER CONTROL ....................................................................... 533
2.6.1 Introduction ................................................................................................................................ 533
2.6.2 SGxxHOPAR and SGxxPCPAR parameter values..................................................................... 534
2.6.2.1 SGxxHOPAR parameter values (Handover) ......................................................................................... 534
2.6.2.2 SGxxPCPAR parameter values (Power Control) .................................................................................. 536
2.7 MAPPING OF RXQUAL AND C/I VALUES................................................................................................. 538
2.8 AMR LINK ADAPTATION THRESHOLDS UPLINK........................................................................................ 539
2.9 BSC, MSC AND BTS OVERLOAD HANDLING .......................................................................................... 543
2.9.1 BSC Overload ............................................................................................................................. 543
2.9.1.1 BSC overload conditions...................................................................................................................... 543
2.9.1.1.1 SS7 Link Congestion..................................................................................................................... 543
2.9.1.1.2 Internal Message Congestion....................................................................................................... 543
2.9.1.1.3 PPXL Overload............................................................................................................................. 543
2.9.1.1.4 BSC Paging Queue Overflow........................................................................................................ 544
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2.9.1.2 System reactions and overload regulation measures in case of BSC overload ................................... 551
2.9.1.2 System reactions and overload regulation measures in case of BSC overload ................................... 551
2.9.1.2.1 Further important notes on BSC reactions ................................................................................... 552
2.9.1.3 Mechanisms for reduction of originating traffic and reduction of terminating traffic .............................. 553
2.9.1.3.1 Overload level management......................................................................................................... 553
2.9.1.3.2 Traffic reduction algorithms .......................................................................................................... 554
2.9.1.3.3 Special overload supervision algorithm in case of BSC paging queue overflow........................... 555
2.9.2 MSC Overload ............................................................................................................................ 556
2.9.2.1 System reactions and overload regulation measures in case of MSC overload.................................... 556
2.9.2.1.1 Special overload level escalation algorithm in case of MSC overload........................................... 556
2.9.3 BTS Overload ............................................................................................................................. 557
2.9.3.1 BTS overload conditions ....................................................................................................................... 557
2.9.3.1.1 PCH messages discarded in BTS ................................................................................................. 557
2.3.9.1.2 AGCH messages discarded in BTS .............................................................................................. 557
2.3.9.1.3 Abis LAPD signalling overload UL................................................................................................. 562
2.3.9.1.4 RACH overload ............................................................................................................................. 562
2.9.3.2 Traffic reduction mechanisms in case of BTS overload ....................................................................... 562
2.9.3.3 System reactions and overload regulation measures in case of BTS overload.................................... 563
2.9.4 Interaction of BTS Overload and BSC Overload ........................................................................ 565
2.9.5 Effects on Performance Measurement Counters ....................................................................... 565
3 ALPHABETICAL COMMAND AND PARAMETER INDEX .....................................................................