BSS Parameters User Guide V15.1.1

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V15.1.1 BSS (Access) Parameters User Guide -bPUG

Document number: PE/DCL/DD/000036Document issue: 15.12 / EN

Document status: StandardDate: 03/07/2006

External document

Copyright 2004 Nortel Networks, All Rights Reserved

Printed in France

NORTEL CONFIDENTIAL

The information contained in this document is the property of Nortel Networks. Except as specifically authorized in

writing by Nortel Networks, the holder of this document shall keep the information contained herein confidentialand shall protect same in whole or in part from disclosure and dissemination to third parties and use same forevaluation, operation and maintenance purposes only.

The content of this document is provided for information purposes only and is subject to modification. It does notconstitute any representation or warranty from Nortel Networks as to the content or accuracy of the informationcontained herein, including but not limited to the suitability and performances of the product or its intendedapplication.

This is the Way. This is Nortel, Nortel, the Nortel logo, and the Globemark are trademarks of Nortel Networks. Allother trademarks are the property of their owners.


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V15.1.1 BSS (Access) Parameters User Guide - bPUG

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PE/DCL/DD/000036 15.12 / EN Standard 03/07/2006 Page 2/518

PUBLICATION HISTORY

System release: GSM/BSS V15

July 2006

Issue 15.12/EN

Update of TEPMOS for AMR and not EFR calls ( 6.32.2 and 6.32.6)

June 2006

Issue 15.11/EN

Update for V15.1.1 I Multipaging command message ( 4.10.5); UI Multipaging commandmessage ( 4.10.6); Directed Retry Handover and queuing ( 4.5.5, 4.23.5 removed fromWPS description); updates on CellAllocation and mobileAllocation description ( 5.21);updates

on AMR mechanism ( 4.23.2, 4.23.4);updates on TCH allocation management ( 4.9.1,4.9.2); updates on interference cancellation ( 4.15, 6.22); update on lRxQualDLH andlRxQualULH description ( 5.10);update on dARPPh1Priority description ( 5.36); updatecoderPoolConfiguration ( 5.34); update on extended cell description ( 5.12); updateFrequency Spacing Between Two TRXs of the Same Area( 6.16)

October 2005

Issue 15.10/EN

Update for V15.1.1 CuR: AMR based on traffic ( 4.22.7, 6.35); AMR improvements (amradaptation table : 4.22.2, 4.22.3, 6.32.3, 5.34); Network Synchronization ( 3.2.46,

4.25, 5.36, 6.36); Automatic Handover Adaptation ( 4.5.22 frequency hopping, 6.33.2Fine Tuning); NMO I ( 4.9.5, 5.37); list of possible dual band network ( 6.20.3); update ofcell models ( 6.27.4); update on concentricCell with HePA ( 4.5.6 and 5.16bizonePowerOffset and concentricCell, 6.6.1 bizonePowerOffset, 6.6.2ZoneTxPowerMaxReduction); update CellAllocation and mobileAllocation description ( 5.21)

September 2005

Issue 15.09/EN

Update for V15.1 ChR + 8 weeks: overhaul of Concentric Cell matter ( 4.5.6Concentric/DualCoupling/DualBand Cell Handover, 5.16 Concentric Cell Parameters and 6.6 Concentric Cell) and Microcell matter ( 6.21 Microcell Benefits) based on recent fieldfeedback, add of a guideline for traffic HO ( 6.34 Handover for traffic reasons activationguideline), update on the appendix B: Erlang table, add of 4.5.10 Ad-Hoc Frequency plan,update on amrReserved2 and uMTSAccessMinLevel parameters.

July 2005

Issue 15.08/EN

Update for V15.1 ChR: add of Satellite Abis Interface description, Automatic Handover Adpatation field field feedback

March 2005

Issue 15.07/EN


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September 2002

Issue 13.02/EN

Update with V13


May 2001

Issue 12.02/EN

Update with V12 (Chapters 1 to 4 except the counters and GSM fields in Chapter 3Algorithms Parameters).

January 2000

Issue 12.01/EN

Modifications after Review


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CONTENTS

1. ABOUT THIS DOCUMENT ......................................................................................................... 13 1.1. OBJECT .................................................................................................................................. 13 1.2. S COPE ................................................................................................................................... 13 1.3. AUDIENCE FOR THIS DOCUMENT .............................................................................................. 13 1.4. DISCLAIMER ........................................................................................................................... 13 1.5. DOCUMENT STRUCTURE .......................................................................................................... 14 1.6. P ARAMETERS MODIFICATION ................................................................................................... 15

1.6.1 between V15.1 and V15.1.1.......................................................................................... 15 1.6.2 between V15.0 and V15.1............................................................................................. 15

2. RELATED DOCUMENTS............................................................................................................ 17

2.1. APPLICABLE DOCUMENTS ........................................................................................................ 17 2.2. REFERENCE DOCUMENTS ....................................................................................................... 17

3. CLASSIFICATION OF BSS PARAMETERS .............................................................................. 19

3.1. P ARAMETERS INFORMATIONS .................................................................................................. 19 3.2. P ARAMETERS VERSUS BSS FEATURES AND P ROCEDURES ....................................................... 27

3.2.1 Level averaging............................................................................................................. 27 3.2.2 Quality averaging .......................................................................................................... 27 3.2.3 Distance averaging ....................................................................................................... 27 3.2.4 Cell eligibility.................................................................................................................. 27 3.2.5 Radio Link Failure ......................................................................................................... 27 3.2.6 Interference management............................................................................................. 27 3.2.7 PCH and RACH control parameters ............................................................................. 27 3.2.8 Concentric Cell .............................................................................................................. 27 3.2.9 Extended cell................................................................................................................. 27 3.2.10 Queuing and priority management................................................................................ 28 3.2.11 SMS-CB ........................................................................................................................ 28 3.2.12 Frequency Hopping....................................................................................................... 28 3.2.13 Selection / Reselection (idle mode) .............................................................................. 28 3.2.14 Dynamic barring of access class .................................................................................. 28 3.2.15 DTX ............................................................................................................................... 28 3.2.16 Uplink Power control ..................................................................................................... 28 3.2.17 Downlink Power control................................................................................................. 28 3.2.18 Directed retry handover................................................................................................. 29 3.2.19 Uplink intracell handover............................................................................................... 29 3.2.20 Downlink intracell handover.......................................................................................... 29 3.2.21 Intercell handover on bad uplink quality criterion.......................................................... 29 3.2.22 Intercell handover on bad downlink quality criterion ..................................................... 29 3.2.23 Intercell handover on bad uplink level criterion............................................................. 29 3.2.24 Intercell handover on bad downlink level criterion ........................................................ 29 3.2.25 Intercell handover on power budget criterion................................................................ 29 3.2.26 Microcellular algorithm .................................................................................................. 29 3.2.27 Intercell handover on distance criterion ........................................................................ 30 3.2.28 Handover for traffic reasons (V12)................................................................................ 30 3.2.29 Handover decision according to adjacent cell (V12)..................................................... 30 3.2.30 General protection against HO PingPong (V12) ........................................................... 30 3.2.31 Call clearing................................................................................................................... 30 3.2.32 Frequency Band favouring............................................................................................ 30 3.2.33 Minimum Time between Handover (before V12) .......................................................... 30


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3.2.34 Radio resource control at cell level ............................................................................... 30 3.2.35 Pre-synchronised Handover.......................................................................................... 30 3.2.36 Interferer cancellation.................................................................................................... 30 3.2.37 Early HO decision ......................................................................................................... 30 3.2.38 Maximum RxLev for PBGT ........................................................................................... 31 3.2.39 Cell Tiering (V12) .......................................................................................................... 31 3.2.40 2G -3G Mobility (V14.2) ................................................................................................ 31 3.2.41 TTY support on BSC/TCU 3000 (V14.3)....................................................................... 31 3.2.42 Potection against intracell HO Ping-pong (V14.3) ........................................................ 31 3.2.43 Automatic Handover adaptation (V14.3)....................................................................... 31 3.2.44 Adaptative Full/Half Rate (V14.3) ................................................................................. 31 3.2.45 Wireless Priority Service ............................................................................................... 31 3.2.46 Network Synchronization .............................................................................................. 32

4. ALGORITHMS ............................................................................................................................. 33

4.1. INTRODUCTION ....................................................................................................................... 33 4.2. CONVENTIONS AND UNITS ....................................................................................................... 33

4.2.1 Unit ................................................................................................................................ 33 4.2.2 Phase 2 BTS and MS maximum transmitting output powers ....................................... 34 4.2.3 GSM Products sensitivity and power ............................................................................ 36 4.2.4 Conversion rules ........................................................................................................... 41 4.2.5 Accuracy related to measurements .............................................................................. 41 4.2.6 Frequency band ............................................................................................................ 42

4.3. S ELECTION , RESELECTION ALGORITHMS .................................................................................. 43 4.3.1 Selection or reselection between cells of current Location Area (Sel_1) ..................... 43 4.3.2 Criteria for reselection towards a cell of a different Location Area (Sel_2)................... 44 4.3.3 Additional reselection criterion (for phase 2) (Sel_3).................................................... 44

4.4. MEASUREMENT P ROCESSING .................................................................................................. 47 4.4.1 Mp_1: Measurement processing (run by the BTS) ....................................................... 47 4.4.2 Mp_2: Measurement processing in dedicated mode (run by the MS) .......................... 49 4.4.3 Missing Downlink Measurements ................................................................................. 50

4.5. DIRECT TCH ALLOCATION AND H ANDOVER ALGORITHMS ......................................................... 52 4.5.1 General formulas........................................................................................................... 52 4.5.2 Direct TCH Allocation.................................................................................................... 55 4.5.3 Handovers..................................................................................................................... 56 4.5.4 Handovers decision priority........................................................................................... 58 4.5.5 Directed Retry Handover............................................................................................... 60

4.6. CONCENTRIC /DUALCOUPLING /DUALB AND CELL H ANDOVER (HO _3)......................................... 63

4.6.1 Rescue Handover ......................................................................................................... 67 4.6.2 Power Budget Handover............................................................................................... 68 4.6.3 Handover for traffic reasons (from V12)........................................................................ 69 4.6.4 Handover decision according to adjacent cell priorities and load (from V12) ............... 71 4.6.5 Automatic cell tiering (from V12)................................................................................... 72 4.6.6 Microcellular Handover ................................................................................................. 77 4.6.7 Forced Handover (Ho_10) ............................................................................................ 80 4.6.8 Early HandOver Decision.............................................................................................. 81 4.6.9 Maximum RxLev for Power Budget .............................................................................. 82 4.6.10 Pre-synchronized HO.................................................................................................... 83 4.6.11 Radio channel allocation............................................................................................... 83 4.6.12 Define eligible neighbor cells for intercell handover (except directed retry) (Ho_11) ... 84 4.6.13 Handover to 2nd best candidate when return to old channel (Ho_12) ......................... 85 4.6.14 Protection against RunHandover=1.............................................................................. 85 4.6.15 General protection against HO ping-pong (from V12) .................................................. 86


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4.6.16 Automatic handover adaptation .................................................................................... 88 4.6.17 Protection against Intracell HO Ping-Pong ................................................................... 91

4.7. H ANDOVER ALGORITHMS ON THE MOBILE S IDE ........................................................................ 94 4.8. P OWER CONTROL ALGORITHMS .............................................................................................. 95

4.8.1 Step by step Power Control (Pc_1)............................................................................... 95 4.8.2 One shot Power Control (Pc_2) .................................................................................... 96 4.8.3 Fast Power Control at TCH assignment (Pc_3)............................................................ 98 4.8.4 Power Control on mobile side (Pc_4) ........................................................................... 99 4.8.5 AMR Power Control (Pc_5)........................................................................................... 99

4.9. TCH ALLOCATION M ANAGEMENT ......................................................................................... 100 4.9.1 TCH Allocation and Priority........................................................................................ 100 4.9.2 Queuing...................................................................................................................... 104 4.9.3 Barring of access class .............................................................................................. 108 4.9.4 Radio link failure process (run by the MS) (Rlf-ms) ................................................... 113 4.9.5 Radio link failure process (run by the BTS) (Rlf-bs)................................................... 113 4.9.6 Call reestablishment procedure (Cr) .......................................................................... 114 4.9.7 Call Clearing Process (run by BTS) (Cc) ................................................................... 115 4.9.8 Interference Management (BTS and BSC) (If)........................................................... 115 4.9.9 DTX ............................................................................................................................ 115

4.10. PCH AND RACH CHANNEL CONTROL ................................................................................... 118 4.10.1 Paging command Process (Pag) ............................................................................... 118 4.10.2 Paging command repetition process (run by BTS) (Pag_rep)................................... 121 4.10.3 Request access command process (RA)................................................................... 121 4.10.4 Request access command repetition process (RA_rep) ........................................... 122 4.10.5 I Multipaging command message ............................................................................. 123 4.10.6 UI Multipaging command message........................................................................... 125 4.10.7 Network Mode of Operation I support in BSS ............................................................ 127

4.11. FREQUENCY HOPPING ......................................................................................................... 129 4.11.1 Frequency hopping principles .................................................................................... 129 4.11.2 Main benefits of frequency hopping........................................................................... 130 4.11.3 Synthesised frequency hopping................................................................................. 132 4.11.4 Baseband frequency Hopping.................................................................................... 133 4.11.5 Ad-Hoc frequency plan............................................................................................... 135

4.12. BSC OVERLOAD M ANAGEMENT MECHANISMS ....................................................................... 136 4.12.1 BSC12000 Overload Management............................................................................ 136 4.12.2 BSC3000 Overload Management .............................................................................. 139 4.12.3 Load Balancing .......................................................................................................... 141 4.12.4 V15.1 Evolution of Load Balancing............................................................................ 141

4.13. C ABINET OUTPUT P OWER S ETTING ...................................................................................... 143 4.13.1 Cabinet power description.......................................................................................... 143 4.13.2 Pr computation........................................................................................................... 144 4.13.3 Ps computation .......................................................................................................... 145

4.14. S YSTEM INFORMATION MESSAGES RELATED FEATURES ........................................................ 148 4.14.1 Dual Band Handling ................................................................................................... 148 4.14.2 SI2Quater & SI13 on Extended or Normal BCCH...................................................... 151

4.15. INTERFERENCE C ANCELLATION ............................................................................................ 153 4.16. EXTENDED CCCH ............................................................................................................... 155

4.16.1 Customer/service provider benefits ........................................................................... 155

4.16.2 Feature functional description.................................................................................... 155 4.17. PCM ERROR CORRECTION .................................................................................................. 156


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4.17.1 Feature principle ........................................................................................................ 156 4.17.2 Feature benefits ......................................................................................................... 157 4.17.3 Parameters and counters associated with this feature .............................................. 157

4.18. CELLULAR TELEPHONE TEXT MODEM (TTY) ......................................................................... 158

4.18.1 TTY principle .............................................................................................................. 158 4.18.2 TTY impact ................................................................................................................. 159

4.19. LOCATION S ERVICES ............................................................................................................ 161 4.19.1 Principle...................................................................................................................... 161 4.19.2 Performances............................................................................................................. 161

4.20. SMS-C ELL BROADCAST ....................................................................................................... 162 4.20.1 Principle...................................................................................................................... 162 4.20.2 Performances............................................................................................................. 163

4.21. MOBILITY 2G - 3G RESELECTION .......................................................................................... 165 4.21.1 GSM to UMTS cell reselection ................................................................................... 165

4.22. BSC/TCU 3000 INTRODUCTION ........................................................................................... 168 4.23. AMR - ADAPTATIVE MULTI R ATE FR/HR .............................................................................. 169

4.23.1 Basics and specific terninology.................................................................................. 169 4.23.2 AMR mechanisms ...................................................................................................... 171 4.23.3 Traffic Management mechanisms.............................................................................. 174 4.23.4 AMR L1m ................................................................................................................... 178 4.23.5 Legacy L1M................................................................................................................ 188 4.23.6 Engineering rules ....................................................................................................... 189 4.23.7 AMR based on traffic.................................................................................................. 191

4.24. WPS - WIRELESS P RIORITY S ERVICE ................................................................................... 196 4.24.1 Principle...................................................................................................................... 196 4.24.2 WPS Queuing management ................................................................................... 196 4.24.3 WPS Access class barring with class periodic rotation .......................................... 199 4.24.4 WPS Public access bandwith protection................................................................. 200

4.25. S ATELLITE ABIS INTERFACE .................................................................................................. 202 4.25.1 Principle...................................................................................................................... 202 4.25.2 Feature activation....................................................................................................... 203 4.25.3 Feature Interworking .................................................................................................. 203

4.26. NETWORK S YNCHRONIZATION .............................................................................................. 204 4.26.1 Global description ...................................................................................................... 204 4.26.2 Feature impacts expectations .................................................................................... 205

5. ALGORITHM PARAMETERS .................................................................................................. 206

5.1. INTRODUCTION .................................................................................................................... 206 5.2. CELL S ELECTION AND RESELECTION P ARAMETERS ............................................................... 207 5.3. R ADIO LINK F AILURE P ARAMETERS ....................................................................................... 212 5.4. S IGNAL QUALITY AVERAGING P ARAMETERS .......................................................................... 215 5.5. S IGNAL S TRENGTH AVERAGING P ARAMETERS ....................................................................... 217 5.6. NEIGHBOR CELL AVERAGING P ARAMETERS .......................................................................... 220 5.7. DISTANCE AVERAGING P ARAMETERS .................................................................................... 222 5.8. H ANDOVER (GLOBAL) P ARAMETERS ..................................................................................... 224 5.9. INTRACELL H ANDOVER P ARAMETERS .................................................................................... 237 5.10. INTERCELL H ANDOVER THRESHOLD P ARAMETERS ................................................................ 240

5.11. H ANDOVER FOR MICROCELLULAR NETWORK P ARAMETERS ................................................... 243 5.12. DISTANCE M ANAGEMENT P ARAMETERS ................................................................................ 245 5.13. P OWER CONTROL P ARAMETERS ........................................................................................... 249


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5.14. TCH ALLOCATION M ANAGEMENT P ARAMETERS .................................................................... 257 5.15. DIRECTED RETRY H ANDOVER P ARAMETERS ......................................................................... 271 5.16. CONCENTRIC CELL P ARAMETERS ......................................................................................... 274 5.17. INTERFERENCE LEVEL P ARAMETERS .................................................................................... 282 5.18. R ADIO RESSOURCES CONTROL AT CELL LEVEL .................................................................... 285 5.19. BSS TIMERS ....................................................................................................................... 286 5.20. P AGING P ARAMETERS .......................................................................................................... 293 5.21. FREQUENCY HOPPING P ARAMETERS .................................................................................... 298 5.22. BSC LOAD M ANAGEMENT P ARAMETERS ............................................................................... 305 5.23. DUALB AND CELL P ARAMETERS ............................................................................................ 306 5.24. DTX P ARAMETERS .............................................................................................................. 312 5.25. MISCELLANEOUS ................................................................................................................. 313 5.26. INTERFERENCE C ANCELLATION P ARAMETERS ....................................................................... 316 5.27. PCM ERROR CORRECTION P ARAMETERS ............................................................................. 317 5.28. CELL TIERING P ARAMETERS ................................................................................................. 318 5.29. ENCODING P ARAMETERS ..................................................................................................... 321 5.30. SMS-C ELL BROADCAST P ARAMETERS ................................................................................. 322 5.31. MOBILITY 2G - 3G RESELECTION P ARAMETERS .................................................................... 323 5.32. P ROTECTION AGAINST INTRACELL HO P ING-P ONG P ARAMETERS .......................................... 325 5.33. AUTOMATIC H ANDOVER ADAPTATION P ARAMETERS .............................................................. 326 5.34. AMR - ADAPTATIVE MULTI R ATE FR/HR P ARAMETERS ......................................................... 328 5.35. WPS - WIRELESS P RIORITY S ERVICES P ARAMETERS ............................................................ 342 5.36. NETWORK S YNCHRONIZATION PARAMETERS ......................................................................... 343 5.37. NETWORK MODE OF OPERATION P ARAMETERS ..................................................................... 345

6. ENGINEERING ISSUE ............................................................................................................. 346

6.1. GSM/GPRS TS S HARING : P RIORITY H ANDLING AND QUEUING ............................................. 346 6.1.1 Resources reserved for priority 0 and preemption..................................................... 346 6.1.2 GSM/GPRS TS sharing and queuing: ....................................................................... 347 6.1.3 Resources strategy .................................................................................................... 348

6.2. L AYER 1 M ANAGEMENT : CHANGES BETWEEN V1 AND V2 ...................................................... 349 6.2.1 Main differences......................................................................................................... 349 6.2.2 Benefit ........................................................................................................................ 357 6.2.3 Change in Handover performance after L1mV2 implementation............................... 357

6.3. ONE -S HOT P OWER CONTROL .............................................................................................. 358 6.4. MINIMUM TIME BETWEEN H ANDOVER .................................................................................... 359

6.4.1 Micro-cellular network ................................................................................................ 359 6.4.2 Non micro-cellular network......................................................................................... 361

6.5. DIRECTED RETRY H ANDOVER BENEFIT ................................................................................. 362 6.5.1 Benefit of feature on mono-layer structure................................................................. 362 6.5.2 Benefit of feature on multi-layers structure ................................................................ 363

6.6. CONCENTRIC CELLS ............................................................................................................ 366 6.6.1 Concentric Cell Parameter Definition......................................................................... 367 6.6.2 Concentric Cell Field Experience............................................................................... 370

6.7. IMPACT OF DTX ON AVERAGING ........................................................................................... 374 6.8. BEST NEIGHBOR CELLS S TABILITY ........................................................................................ 375 6.9. TCH ALLOCATION GENERAL RULES ..................................................................................... 376 6.10. GENERAL R ADIO FREQUENCY RULES ................................................................................... 377 6.11. DIFFERENCE BETWEEN UPLINK AND DOWNLINK LEVELS ........................................................ 378 6.12. EFFECTS OF NOOFMULTIFRAMES BETWEEN P AGING ON MOBILE B ATTERIES AND RESELECTIONREACTIVITY ...................................................................................................................................... 379 6.13. EFFECTS OF SMS-C ELL BROADCAST USE ON NO OFBLOCKS FOR ACCESS GRANT ................. 381


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6.14. IMPACT OF THE AVERAGING ON THE H ANDOVERS .................................................................. 382 6.14.1 Global statistics .......................................................................................................... 382 6.14.2 Study of reactivity....................................................................................................... 383 6.14.3 Ping pong vs Reactivity.............................................................................................. 383

6.15. IMPACT OF C ALL RE-ESTABLISHMENT ON THE NETWORK ....................................................... 384 6.15.1 Impact on capacity ..................................................................................................... 384 6.15.2 Impact on call drops................................................................................................... 384

6.16. FREQUENCY S PACING BETWEEN TWO TRXS OF THE S AME AREA .......................................... 385 6.16.1 Intra_cell..................................................................................................................... 385 6.16.2 intra_site..................................................................................................................... 385 6.16.3 Inter_site..................................................................................................................... 385

6.17. LINK BUDGET (LB)............................................................................................................... 386 6.17.1 Gains and losses........................................................................................................ 386 6.17.2 Designs margins ........................................................................................................ 387

6.17.3 Environmental factors margins................................................................................... 387 6.17.4 Link budget balance or disbalance ( )....................................................................... 388 6.18. MINIMUM COUPLING LOSS (MCL)......................................................................................... 390

6.18.1 Broadband noise ........................................................................................................ 390 6.18.2 Blocking...................................................................................................................... 390 6.18.3 How to improve the MCL............................................................................................ 391

6.19. GENERAL RULES FOR S YNTHESISED FREQUENCY HOPPING .................................................. 392 6.19.1 Nortel choice between Baseband and Synthesised Frequency hopping .................. 392 6.19.2 Fractional load............................................................................................................ 394 6.19.3 Maximum TRX configuration (homogeneous sites of configuration Sxxx) ................ 395 6.19.4 SFH parameter setting for 1X1 pattern: strategy 1 .................................................... 396 6.19.5 SFH parameter setting for 1X3 pattern: Strategy 2 ................................................... 401

6.20. DUALB AND NETWORKS ........................................................................................................ 407 6.20.1 frequency band favouring........................................................................................... 407 6.20.2 frequency band defavouring....................................................................................... 409 6.20.3 Possible dualband network ........................................................................................ 410

6.21. MICROCELL BENEFITS .......................................................................................................... 411 6.21.1 Frequency super reuse .............................................................................................. 411 6.21.2 Traffic Homogenization .............................................................................................. 411 6.21.3 Radio conditions improvement................................................................................... 411 6.21.4 Microcell Field Experience ......................................................................................... 412

6.22. INTERFERENCE

C ANCELLATION

USAGE

................................................................................. 413 6.23. S ET UP P RINCIPLES OF A NEIGHBORING LIST AND A BCC P LAN ............................................. 414 6.23.1 Introduction................................................................................................................. 414 6.23.2 4/12 reuses pattern .................................................................................................... 414 6.23.3 1X3 and 1X1 Fractional reuse pattern specific case ................................................. 416 6.23.4 Set-up principles of a BSIC plan ................................................................................ 418

6.24. S TREET CORNER ENVIRONMENT .......................................................................................... 419 6.24.1 Description ................................................................................................................. 419 6.24.2 Case A: Mobile moving straight ................................................................................. 420 6.24.3 Case B: Mobile turning at the cross road................................................................... 421

6.25. S YNCHRONIZED HO VERSUS NOT S YNCHRONIZED HO.......................................................... 422

6.25.1 Introduction................................................................................................................. 422 6.25.2 OMC-R Parameter settings........................................................................................ 422


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6.25.3 Timing HO.................................................................................................................. 423 6.26. BTS S ENSITIVITY ................................................................................................................. 427

6.26.1 Definition of Sensitivity............................................................................................... 427 6.26.2 Static and Dynamic Sensitivity................................................................................... 428 6.26.3 Typical / Guaranteed Sensitivity................................................................................. 428 6.26.4 Space diversity gains ................................................................................................. 428 6.26.5 Cross-polarization antenna use ................................................................................. 429 6.26.6 Circular polarization and crosspolar antennas........................................................... 430

6.27. SDCCH DIMENSIONING AN TDMA MODELS ......................................................................... 432 6.27.1 SDCCH Dimensioning................................................................................................ 432 6.27.2 SDCCH distribution.................................................................................................... 434 6.27.3 TDMA Model .............................................................................................................. 434 6.27.4 TDMA priorities .......................................................................................................... 435 6.27.5 PCM Priority ............................................................................................................... 437

6.28. ENGINEERING GUIDELINES FOR EXCEPTIONAL EVENTS .......................................................... 438

6.28.1 BSS prerequisite ........................................................................................................ 438 6.28.2 BSS: Suggestions for parameters to be modified for the special event .................... 439 6.28.3 NSS level.................................................................................................................... 440

6.29. ENGINEERING LIMITS WITH BSC OVERLOAD CONTROL MECHANISM ....................................... 443 6.29.1 CPU Engineering limit meaning............................................................................... 443 6.29.2 CPU Call Processing limit meaning......................................................................... 444

6.30. P OWER CONTROL COMPENSATION IN INTERZONE H ANDOVER ................................................ 445 6.30.1 Dualband cell ............................................................................................................. 445 6.30.2 Concentric cell ............................................................................................................ 447 6.30.3 Dualcoupling cell ........................................................................................................ 448

6.31. GSM P AGING REPETITION P ROCESS TUNING ....................................................................... 449 6.31.1 Paging parameters..................................................................................................... 449 6.31.2 Field examples: BSS paging repetition tuning ........................................................... 450 6.31.3 Field examples: NSS paging repetition tuning........................................................... 451

6.32. AMR F IELD FEEDBACK ........................................................................................................ 452 6.32.1 NSS Interaction .......................................................................................................... 452 6.32.2 AMR Theoretical Performances................................................................................. 453 6.32.3 AMR Engineering Studies .......................................................................................... 457 6.32.4 Half Rate Penetration Analysis .................................................................................. 463 6.32.5 AMR User Behaviour Effect ....................................................................................... 466 6.32.6 Voice Quality Analysis................................................................................................ 468 6.32.7

AMR Monitoring ......................................................................................................... 470

6.33. IMPACT OF AUTOMATIC H ANDOVER ADAPTATION ACTIVATION ................................................. 476

6.33.1 Related parameters.................................................................................................... 476 6.33.2 Deployment Optimization and Monitoring.................................................................. 477

6.34. H ANDOVER FOR TRAFFIC REASONS ACTIVATION GUIDELINE .................................................. 481 6.34.1 Algorithms and Parameters Definition ....................................................................... 481 6.34.2 Expected effects and recommended parameters ...................................................... 483

6.35. DISABLING AMR BASED ON TRAFFIC IN V15.1.1.................................................................... 487 6.36. NETWORK SYNCHRONIZATION ENGINEERING PLANNING METHODOLOGIES ............................... 488

6.36.1 TSC planning ............................................................................................................. 488

6.36.2 Collision probability .................................................................................................... 489 6.36.3 Interference cancellation............................................................................................ 492


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7. APPENDIX A: MAIN EXCHANGE PROCEDURES AT BSC LEVEL...................................... 494

7.1. ESTABLISHMENT P ROCEDURE .............................................................................................. 494 7.2. CHANNEL MODE P ROCEDURE .............................................................................................. 495 7.3. DEDICATED CHANNEL ASSIGNMENT ...................................................................................... 496 7.4. INTRACELL H ANDOVER P ROCEDURE ..................................................................................... 497 7.5. INTRA BSS H ANDOVER P ROCEDURE ..................................................................................... 498 7.6. INTER BSS H ANDOVER P ROCEDURE ..................................................................................... 499 7.7. RESOURCE RELEASE P ROCEDURE (EXAMPLE )...................................................................... 500 7.8. SACCH DEACTIVATION P ROCEDURE ................................................................................... 501 7.9. MOBILE TERMINATING C ALL ................................................................................................. 502 7.10. MOBILE ORIGINATING C ALL .................................................................................................. 503

8. APPENDIX B: ERLANG TABLE.............................................................................................. 504

9. ABBREVIATIONS & DEFINITIONS......................................................................................... 507

9.1. ABBREVIATIONS ................................................................................................................... 507 9.2. DEFINITIONS ........................................................................................................................ 513

10. INDEX ....................................................................................................................................... 516


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1. ABOUT THIS DOCUMENT

1.1. OBJECT

This document describes BSS GSM and Nortel algorithms and parameters from anengineering point of view.

This document is written by Nortel BSS experts and contains extensive Nortel BSSparameters setting know-how. Informations coming from experiments, studies, simulations arealso related in the document.

The parameters are called by the name used in the features and algorithms. For theircorresponding name (when different) at the OMC, refer to [R6] .

The parameters described in this document are the ones used in the features and algorithms.Refer to [R2] to have a description of ALL BSS parameters.

1.2. SCOPE

This version is compliant with the ChR V15.1.1 BSS GSM release.

1.3. AUDIENCE FOR THIS DOCUMENT

Draft and preliminary: Nortel R&D, PLM and Eng'

Standard: customers and Nortel R&D, PLM and Eng'

1.4. DISCLAIMER

Depending on particular objective, call profile and network characteristics, a parameter settingcan never be judged as being universally optimized.

The recommended setting presented in this document should result in good networkperformance; however several iterations and improvements may be required in order to beoptimal according to customer specificities. Every effort is made to incorporate suggestions

and feedback received from customers.

PRELIMINARY VERSION

The recommended setting has been validated with product and system tests in lab. Thisdocument will be updated and adjusted after the first results from VO site or new ProductTest/End-to-end labs if available.

STANDARD VERSION

This is a living document and the contents will be modified based on feedback received fromR&D, Engineering and customers.


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1.5. DOCUMENT STRUCTURE

In chapter CLASSIFICATION OF BSS PARAMETERS , BSS algorithm parameters arepresented in alphabetic order according to their group. Process and related objects are also

provided.

Chapter ALGORITHMS describes the GSM Nortel BSS algorithms and recommends ways touse them efficiently.

BSS parameters used in the algorithms are described in chapter ALGORITHMPARAMETERS . For each parameter, a recommended value and a default value are given.Engineering rules explain how to select the parameter value.

In chapter ENGINEERING ISSUE , engineering issues resulting from studies on parametersetting and on products, simulations and experiments are developped.

Chapter APPENDIX A: MAIN EXCHANGE PROCEDURES AT BSC LEVEL gives the main

exchange procedures at BSC level.

In chapter APPENDIX B: ERLANG TABLE , an Erlang table presents the maximum offeredload according to the number of channels and the blocking rate.

In chapter ABBREVIATIONS & DEFINITIONS , the signification of all the abbrevations used inthis document and some key-definitions are explained.


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1.6. PARAMETERS MODIFICATION

1.6.1 BETWEEN V15.1 AND V15.1.1

hrCellLoadEnd:

New recommended value set to 5 -10 in urban areas and 50 - 60 in rural areas, instead of 0

hrCellLoadStart:

New recommended value set to a fix value i.e 20-30 in urban areas and 70-80 in rural areasinstead of a value greater than 0

hoMarginTrafficOffset:

New recommended value set to 6 instead of 2; HoMarginTrafficOffset should be tune such asthe resulting margin should be equivalent to the one for rescue HO.

early classmark sending:

New recommended value set this value to Allowed even if dual band network is not used. Thisparameter allows MS to send its capacity downlink Advanced Receiver performance.

1.6.2 BETWEEN V15.0 AND V15.1.

RadioLinkTimeOut:

New recommended value set to 32 instead of 20. when AMR is activated RLT drop callscontribution is usually much higher in coverage limited or rural areas because calls are beingdragged at cell edges and the overlap between neighboring sites is less important than inurban areas. This recommendation helps to reduce the contribution of RLT drop

Rlf1:

New recommended value set to 7 instead of 4. This new recommendation is linked to RLT onewhen AMR is activated

HoMarginBeg:New recommended value set to 2dB instead of 4 when Automatic Handover Adaptation isactivated. This new setting helps to get effective margin of 6 dB

AllocPriorityTimer:

New recommended value set to [5 0 5 5 0 0 0 0 28 28 28 28 28 28] instead of [0 0 3 0 0 0 0 028 28 28 28 28 28].

AllocWaitThreshold:

New recommended value set to [n 0 n n 0 0 0 0 5 5 5 5 5] instead of [0 0 n 0 0 0 0 0 5 5 5 5 5].

CallReestablishmentPriority:New recommended value set to 15 instead of 16.


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IntraCellHOIntPriority:

New recommended value set to 14 instead of 17.

DirectedRetryPrio:

New recommended value set to 17 instead of no recommended value.

biZonePowerOffset:

New recommended value depends on the engineering rules, in v15.0 it was 63 dB formonozone and 3 dB otherwise.

ConcentAlgoMsRange:

New recommended value set to 34 instead of depending on the radius of the site.

Small to large HO priority

New recommended value set to 14 instead of 17.

T3103

New recommended value set to 9 seconds instead of 5. From a handover perspective it isrecommended to use 9s in order to offer a wider window of good completion of the procedureat cell edge where the quality might be poorer.

noOfBlocksForAccessGrant

Addition of a recommended value for SI2Quater or/and SI13 on ext BCCH.

Data non transparent mode

New recommended value set to TBD instead of 9.6kb/s

Serving factor offset

New recommended value set to 0 instead of -2. It means it will actually favor the server ordisfavor in order word the neighbor greatly.

amrReserved2

New recommended values will depend of in what is base AMR alarm handovers and AMRpower control. Old value was 3.

amrFRIntercellCodecMThresh

New recommended value set to 10k2 instead of 6k7.


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2. RELATED DOCUMENTS

2.1. APPLICABLE DOCUMENTS

[A1] PE/SYS/DD000036 BSS Parameters User Guide

2.2. REFERENCE DOCUMENTS

[R1] PE/SYS/DD/000065 Configuration parameters for BSS

[R2] PE/DCL/DD/000007 BSS Operating Principles

[R3] PE/DCL/DD/000000 BSS Product Documentation Overview

[R4] PE/DCL/DD/0124 BSS Parameter Dictionary

[R5] PE/DCL/DD/0125 Observation Counter Dictionary

[R6] PE/MD/DD/000008 GDMO Configuration Management

[R7] PE/DCL/DD/000138 GSM/GPRS/EDGE BSS Engineering Rules

[R8] PE/BTS/DD/1514 SFS OF LAYER 1 MANAGEMENT

[R9] PE/SYS/DD/0272 Dual band cells management:TF875

[R10] PE/SYS/INF/0225 Concentric cell improvements (CM888/TF889)

[R11] PE/SYS/DD/6293 FN for stepped coupling[R12] PE/SYS/INF/0140 Handover for traffic reasons: TF132

[R13] PE/SYS/INF/0190 Handover decision according to adjacent cellpriorities and load TF716

[R14] PE/SYS/DD/279 FUNCTIONAL NOTE : AUTOMATIC CELLTIERING TF 995

[R15] PE/BTS/DD/0421 TF809 : Early handover decision

[R16] PE/SYS/DD/0291 General protection against HO Ping-pong :TF821

[R17] PE/SYS/DD/0330 TF1216 : Automatic handover adaptation[R18] PE/SYS/DD/0331 TF1217 : Protection against intra-cell HO Ping-

pong

[R19] PE/SYS/DD/0482 22464: WPS - Access class barring with classperiodic rotation

[R20] PE/SYS/DD/010888 27318 Configure sending of SI2Quater and SI13on Ext or Norm BCCH

[R21] PE/SYS/INF/0242 Extended CCCH :TF184

[R22] PE/SYS/DD/0356 SV1322: TTY on BSC/TCU e3

[R23] PE/SYS/DD/0432 AR1526 - SMS-CB Usability improvement


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[R24] UMT/SYS/DD/29 GSM to UMTS mobility

[R25] PE/SYS/DD343 SV713 : AMR Full Rate; SV885 AMR Half Rate

[R26] PE/SYS/DD/486 22463: WPS - Queuing management

[R27] PE/SYS/DD/487 22465 : WPS - Public access bandwidthprotection

[R28] PE/SYS/DD/005776 24394 : Directed retry without queuing activation

[R29] PE/BSS/APP/012435 AMR Engineering Handbook

[R30] PE/SYS/DD/005321 Advanced Speech Call Items Evolutions

[R31] PE/SYS/DD/0231 PM990 Satellite ABIS interface

[R32] PE/IRC/APP/014199 Satellite Abis Interface - Engineering Guideline

[R33] PE/BSS/APP/0115 Reference Manual for BSC data configuration

[R34] PE/IRC/APP/016320 Network Synchronisation Engineering Guidelinesfor V15.1.1

[R35] PE/SYS/DD/7695 25604: Multi Paging Command Management

[R36] PE/SYS/DD/013998 Paging capacity increase UI mode BSC 3000


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3. CLASSIFICATION OF BSS PARAMETERS

3.1. PARAMETERS INFORMATIONS

The following table gives a classification of the main BSS tunable parameters sorted byalphabetical order, the object they are associated to at the OMC-R (as they are described in[R1]) and the principal features using those parameters.

Parameter name BSS Object- Feature(s) using this parameter

accessClassCongestion V9 bts Barring of access class

adjacent_cell_umbrella_ref V9 bts Directed Retry Handover

allocPriorityTable V7 bts TCH Allocation and Priority

Queuing

WPS Queuing management

allocPriorityThreshold V7 bts TCH Allocation and Priority

Queuing

allocPriorityTimers V7 bts Queuing


allocWaitThreshold V7 bts Queuing


allOtherCasesPriority V7 bts TCH Allocation and Priority

Queuing amrUlFrAdaptationSet V15 bts AMR Codec mode adaptation

amrUlHrAdaptationSet V15 bts AMR Codec mode adaptation

amrDlFrAdaptationSet V15 bts AMR Codec mode adaptation

amrUlHrAdaptationSet V15 bts AMR Codec mode adaptation

amrDirectAllocIntRxLevDL V14 bts AMR Handover mechanisms

amrDirectAllocIntRxLevUL V14 bts AMR Handover mechanisms

amrDirectAllocRxLevDL V14 bts AMR Handover mechanisms

amrDirectAllocRxLevUL V14 bts AMR Handover mechanisms

amrFRIntercellCodecMThresh V14 handOverControl AMR Handover mechanisms

amrFRIntracellCodecMThresh V14 handOverControl AMR Handover mechanisms

amrHRIntercellCodecMThresh V14 handOverControl AMR Handover mechanisms

amrHRtoFRIntracellCodecMThresh V14 handOverControl AMR Handover mechanisms

amriRxLevDLH V14 handOverControl AMR Handover mechanisms

amriRxLevULH V14 handOverControl AMR Handover mechanisms

amrReserved2 V14 handOverControl AMR Legacy L1M

answerPagingPriority V7 bts TCH Allocation and Priority

Queuing

assignRequestPriority V7 bts TCH Allocation and Priority

Queuing

averagingPeriod V7 handOverControl Radio channel allocation

Interference Management

baseColourCode V7 bts Network Synchronization

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bCCHFrequency V7 adjacentCellReselection

bCCHFrequency V7 bts

biZonePowerOffset V12 adjacentCellHandover General formulas

Direct TCH allocation on an adjacent cell Concentric/DualCoupling/DualBand CellHandover

biZonePowerOffset V12 handoverControl General formulas

Direct TCH allocation on an adjacent cell

Concentric/DualCoupling/DualBand CellHandover

bscHopReconfUse V8 bsc Reconfiguration procedure

bscMSAccessClassBarringFunction V9 bsc Barring of access class

bscQueuingOption V7 signallingPoint Queuing


bsMsmtProcessingMode V7 bts Measurement Processing

bsPowerControl V7 powerControl Power Control Algorithms AMR Power Control

bssMapT1 V7 bsc

bssMapT12 V7 bsc

bssMapT13 V7 bsc

bssMapT19 V8 bsc

bssMapT20 V8 bsc

bssMapT4 V7 bsc

bssMapT7 V7 bsc

bssMapT8 V7 bsc

bssMapTchoke V7 bsc

bssSccpConnEst V7 signallingPoint

bsTxPwrMax V7 powerControl General formulas

Cabinet Output Power Setting

btsSMSynchroMode V15 btsSiteManager Network Synchronization

bts Time Between HO configuration V9

V12

bts Minimum time between Handover

General protection against HO ping-pong

btsHopReconfRestart V8 bts Reconfiguration procedure

btsIsHopping V7 bts Frequency Hopping

btsMSAccessClassBarringFunction V9 bts Barring of access class

btsThresholdHopReconf V8 bts Reconfiguration procedure

callClearing V7 bts Call Clearing Process

callReestablishment V7 bts Radio link failure process ,

Call reestablishment procedure

callReestablishmentPriority V7 bts TCH Allocation and Priority

Queuing

capacityTimeRejection V14 handOverControl Protection against Intracell HO Ping-Pong

AMR Handover mechanisms

cellAllocation V7 bts Frequency Hopping

cellBarQualify V8 bts Selection, Reselection Algorithms

cellBarred V7 bts Selection, Reselection Algorithms

cellDeletionCount V7 bts Measurement Processing

Handovers screening

cellDtxDownLink V7 bts DTX

cellReselectHysteresis V8 bts Selection, Reselection Algorithms


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cellReselectOffset V7 bts Selection, Reselection Algorithms

cellReselInd V8 bts Selection, Reselection Algorithms

cellType V7 adjacentCellHandOver Microcellular Algo

cellType V7 bts Microcellular Algo

channelType V7 channel

coderPoolConfiguration V14 transcoder AMR Channel allocation

Cellular Telephone Text Modem (TTY)

concentAlgoExtMsRange V9 handOverControl Direct TCH allocation at first TCH allocation

Concentric cell / dualcoupling cell intracellhandovers

concentAlgoExtRxLev V9 handOverControl Direct TCH allocation at first TCH allocation

Concentric/DualCoupling/DualBand CellHandover

Concentric cell / dualcoupling cell intracellhandovers

concentAlgoIntMsRange V9 handOverControl Concentric cell / dualcoupling cell intracellhandovers

concentAlgoIntRxLev V9 handOverControl Concentric/DualCoupling/DualBand CellHandover

concentric_cell V9

V12

bts Concentric/DualCoupling/DualBand CellHandover

cpueNumber V12 btsSiteManager Cell Group Management

CPU/BIFP LOAD SHARING

dARPPh1Priority V15 transceiver Network Synchronization

Data14_4OnNoHoppingTs V12 bts PCM Error Correction

data mode 14.4 kbit/s V11 transcoder board PCM Error Correction

data non transparent mode V11 bts PCM Error Correction

data non transparent mode V11 signallingPoint PCM Error Correction

data transparent mode V11 bts PCM Error Correction

data transparent mode V11 signallingPoint PCM Error Correction

delayBetweenRetrans V8 bts Paging command repetition process

directedRetry V9 adjacentCellHandOver Directed Retry Handover

directedRetryModeUsed V9 bts Directed Retry Handover

directedRetryPrio V12 bts Directed Retry Handover

distHreqt V7 handOverControl Measurement Processing

distWtsList V7 handOverControl Measurement Processing

dtxMode V7

V14

bts DTX

early classmark sending V10 bts Modified SYS INFO 3

Location Services

emergencyCallPriority V7 bts TCH Allocation and Priority

Queuing

enhancedTRAUFrameIndication V12 bsc PCM Error Correction

enhCellTieringConfiguration V14 handOverControl Cell Tiering Parameters

estimatedSiteLoad V15 btsSiteManager V15.1 Evolution of Load Balancing

extended cell V9 bts

fhsRef V7 channel Frequency Hopping

filteredTrafficCoefficient V15 bts AMR based on traffic

fnOffset V15 btsSiteManager Network Synchronization forced handover algo V9 adjacentCellHandOver Forced Handover


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frAMRPriority V14 transceiver AMR Channel allocation

frPowerControlTargetMode V14 transceiver AMR Power Control

gprsNetworkModeOperation V15 bts Network Mode of Operation I support in BSS

gsmToUmtsReselection V14 bts Mobility 2G - 3G Reselection Parameters

handOver from signalling channel V7 handOverControl Direct TCH Allocation and Handover Algorithms

hoMargin V7 adjacentCellHandOver Handovers

Power budget formula

Handover for traffic reasons

Define eligible neighbor cells for intercellhandover

Automatic handover adaptation

hoMarginAMR V14 adjacentCellHandOver AMR Handover mechanisms

Handovers

hoMarginBeg V11 bts Handovers

Early HandOver Decision


hoMarginDist V8 adjacentCellHandOver Handover condition for leaving a cell ondistance


hoMarginRxLev V8 adjacentCellHandOver Handovers


hoMarginRxQual V8 adjacentCellHandOver Handovers


hoMarginTiering V14 handOverControl Automatic cell tiering

hoMarginTrafficOffset V12 adjacentCellHandOver Handover for traffic reasons hoPingpongCombination V12

V14

adjacentCellHandOver General protection against HO ping-pong

hoPingpongTimeRejection V12 adjacentCellHandOver General protection against HO ping-pong

hoppingSequenceNumber V7 frequencyHopSystem Synthesised frequency hopping

hoSecondBestCellConfiguration V9 bsc Handover to 2nd best candidate when returnto old channel

hoTraffic V12 bsc Handover for traffic reasons

hoTraffic V12 bts Handover for traffic reasons

hrAMRPriority V14 transceiver AMR Channel allocation

hrCellLoadEnd V14 bts AMR Channel allocation

hrCellLoadStart V14 bts AMR Channel allocation hrPowerControlTargetMode V14 powerControl AMR Power Control

incomingHandOver V7 handOverControl Handovers

interBscDirectedRetry V9 bsc Directed Retry Handover

interBscDirectedRetryFromCell V9 bts Directed Retry Handover

interCellHOExtPriority V7 bts TCH Allocation and Priority

Queuing

interCellHOIntPriority V7 bts TCH Allocation and Priority

Queuing

interferenceType V12 adjacentCellHandover Automatic cell tiering

interferer cancel algo usage V10 bts Interference Cancellation

intraBscDirectedRetry V9 bsc Directed Retry Handover

intraBscDirectedRetryFromCell V9 bts Directed Retry Handover


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intraCell V7

V12

handOverControl Intracell Handover decision for signal quality

intraCellHOIntPriority V7 bts TCH Allocation and Priority

Queuing

intraCellQueuing V8 bts Queuing intraCellSDCCH V8 handOverControl Intracell Handover decision for signal quality

lRxLevDLH V7 handOverControl Handover condition for leaving a cell on rxlev


lRxLevDLP V7 powerControl Power Control Algorithms

AMR Power Control

lRxLevULH V7 handOverControl Handover condition for leaving a cell on rxlev

lRxLevULP V7 powerControl Power Control Algorithms

AMR Power Control

lRxQualDLH V7 handOverControl Handover condition for leaving a cell on rxqual

lRxQualDLP V7 powerControl Power Control Algorithms AMR Power Control

lRxQualULH V7 handOverControl Handover condition for leaving a cell on rxqual

lRxQualULP V7 powerControl Power Control Algorithms

AMR Power Control

maio V7 channel Synthesised frequency hopping

masterBtsSmId V15 btsSiteManager Network Synchronization

maxNumberRetransmission V8 bts Request access command repetition process

measurementProcAlgorithm V12 bts Measurement Processing

Direct TCH Allocation and Handover Algorithms

microCellCaptureTimer V8 adjacentCellHandOver Microcellular Algo

microCellStability V8 adjacentCellHandOver Microcellular Algo

minNbOfTDMA V7 bts

missDistWt V7 handOverControl Measurement Processing

missRxLevWt V7 handOverControl Measurement Processing

missRxQualWt V7 handOverControl Measurement Processing

mobileAllocation V7 frequencyHopSystem Synthesised frequency hopping

Baseband Frequency Hopping

modeModifyMandatory V9 bsc Directed Retry Handover

msBtsDistanceInterCell V7 handOverControl Handovers screening

Handover condition for leaving a cell ondistance

msRangeMax V7 handOverControl Handover condition for leaving a cell ondistance

msTxPwrMax V7 bts Accuracy related to measurements

General formulas

Forced Handover (Ho_10)

Power Control Algorithms

msTxPwrMax2ndBand V12 bts Concentric/DualCoupling/DualBand CellHandove

msTxPwrMaxCCH V7 bts Selection, Reselection Algorithms

msTxPwrMaxCell V7 adjacentCellHandOver General formulas

Handovers screening

Directed Retry Handover: BTS Forced Handover

Define eligible neighbor cells for intercell


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radioAllocator V12 bts

radioLinkTimeout V7 bts Radio link failure process

radResSupBusyTimer V8 bsc

radResSupervision V8 bts

radResSupFreeTimer V8 bsc

retransDuration V8 bts

rlf1 V8 bts Radio link failure process



rndAccTimAdvThreshold V8 bts Request access command process

runCallClear V7 bts Call Clearing Process

runHandOver V7 bts Handovers

Microcellular Algo

Protection against RunHandover=1

runPwrControl V7 bts Power Control Algorithms

AMR Power Control

rxLevAccessMin V7 bts Selection, Reselection Algorithms

rxLevDLIH V7 handOverControl Intracell Handover decision for signal quality

rxLevDLPBGT V11 adjacentCellHandOver Handovers screening

Maximum RxLev for Power Budget

rxLevHreqave V7 handOverControl Measurement Processing

rxLevHreqaveBeg V11 handOverControl Early HandOver Decision


Fast power control at TCH assignment

rxLevHreqt V7 handOverControl Measurement Processing

rxLevMinCell V7 adjacentCellHandOver General formulas

Handovers screening


rxLevNCellHreqaveBeg V11 handOverControl Early HandOver Decision


Fast power control at TCH assignment

rxLevULIH V7 handOverControl Intracell Handover decision for signal quality

rxLevWtsList V7 handOverControl Measurement Processing

rxNCellHreqave V7 handOverControl Measurement Processing

Early HandOver Decision


rxQualAveBeg V14 handOverControl Automatic handover adaptation rxQualDLIH V7 handOverControl Intracell Handover decision for signal quality

rxQualHreqave V7 handOverControl Measurement Processing

rxQualHreqt V7 handOverControl Measurement Processing

rxQualULIH V12 handOverControl Intracell Handover decision for signal quality

rxQualWtsList V12 handOverControl Measurement Processing

selfAdaptActivation V14 bts Automatic handover adaptation

selfTuningObs V12 handOverControl Automatic cell tiering

servingfactorOffset V14 handOverControl Automatic handover adaptation

siteGsmFctList V7 btsSiteManager

small to large zone HO priority V9 handOverControl TCH Allocation and Priority

Queuing

smsCB V7 bts SMS-Cell Broadcast


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speechMode V8

V14

bts AMR - Adaptative Multi Rate FR/HR

speechMode V8

V14

signallingPoint AMR - Adaptative Multi Rate FR/HR

standard indicator AdjC V10V12

adjacentCellHandover Dual Band Handling

standard indicator AdjC V10

V12

adjacentCellReselect Dual Band Handling

standardIndicator V12 bts Concentric/DualCoupling/DualBand CellHandover

synchronized V7 adjacentCellHandOver Pre-synchronized HO

Handover Algorithms on the Mobile Side

t3101 V9 bts

t3103 V9 bts

t3107 V9 bts

t3109 V9 btst3111 V9 bts

t3122 V9 bts

temporaryOffset V8 bts Selection, Reselection Algorithms

thresholdInterference V7 handOverControl Radio channel allocation

Interference Management

timeBetweenHOConfiguration V9

V12

bsc Power Budget Handover

General protection against HO ping-pong

timerPeriodicUpdateMS V7 bts

tnOffset V15 btsSiteManager Network Synchronization

trafficPCMAllocationPriority V9 transceiver

transceiver equipment class V9 transceiverEquipment Concentric/DualCoupling/DualBand CellHandover

transceiver equipment class V9 transceiverZone Concentric/DualCoupling/DualBand CellHandover

transceiverZone V9 transceiver Concentric/DualCoupling/DualBand CellHandover

uMTSAccessMinLevel V14 bts Mobility 2G - 3G Reselection

uMTSReselectionARFCN V14 bts Mobility 2G - 3G Reselection

uMTSReselectionOffset V14 bts Mobility 2G - 3G Reselection

uMTSSearchLevel V14 bts Mobility 2G - 3G Reselection

uplinkPowerControl V8 powerControl Power Control Algorithms

AMR Power Control

uRxLevDLP V7 powerControl Power Control Algorithms

uRxLevULP V7 powerControl Power Control Algorithms

uRxQualDLP V7 powerControl Power Control Algorithms

uRxQualULP V7 powerControl Power Control Algorithms

wPSManagement V15 bsc WPS - Wireless Priority Service

wPSQueueStepRotation V15 bts WPS - Wireless Priority Service

zone Tx power max reduction V9 transceiverZone Concentric/DualCoupling/DualBand CellHandover

zoneFrequencyHopping V9 transceiverZone Concentric/DualCoupling/DualBand CellHandover

zoneFrequencyThreshold V9 transceiverZone Concentric/DualCoupling/DualBand CellHandover


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3.2. PARAMETERS VERSUS BSS FEATURES AND PROCEDURES

Here is the list of the main BSS tunable parameters sorted by procedure or feature.

3.2.1 LEVEL AVERAGING

rxLevHreqave , rxLevHreqt , rxLevWtsList , missRxLevWt , rxLevHreqaveBeg .

3.2.2 QUALITY AVERAGING

rxQualHreqave , rxQualHreqt , rxQualWtsList , missRxQualWt .

3.2.3 DISTANCE AVERAGING

distHreqt , distWtsList , missDistWt .

3.2.4 CELL ELIGIBILITY

rxLevMinCell , rxNCellHreqave , cellDeletionCount , rxLevHreqave , missRxLevWt ,msTxPwrMaxCell , msTxPwrMax , hoSecondBestCellConfiguration , rxLevNCellHreqaveBeg .

3.2.5 RADIO LINK FAILURE

radioLinkTimeOut , rlf1, rlf2, rlf3, t3111 , t3109 .

3.2.6 INTERFERENCE MANAGEMENT

averagingPeriod , thresholdInterference , radChanSelIntThreshold .

3.2.7 PCH AND RACH CONTROL PARAMETERS

delayBetweenRetrans , maxNumberRetransmission , nbOfRepeat , noOfBlocksForAccessGrant ,noOfMultiframesBetweenPaging , numberOfSlotsSpreadTrans , pagingOnCell , retransDuration ,

t3122 , gprsNetworkModeOperation .

3.2.8 CONCENTRIC CELL

concentric cell , concentAlgoExtMsRange , concentAlgoExtRxLev , concentAlgoIntMsRange ,concentAlgoIntRxLev , transceiverEquipmentClass , transceiverZone , zoneFrequencyHopping ,zoneFrequencyThreshold , small to large zone HO Priority , zone Tx power max reduction ,biZonePowerOffset , biZonePowerOffset(n) , rxLevMinCell(n) .

3.2.9 EXTENDED CELL

extended cell , rndAccTimAdvThreshold , msRangeMax , callClearing , channelType .


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3.2.10 QUEUING AND PRIORITY MANAGEMENT

allocPriorityTable , allocPriorityTimers , allocPriorityThreshold , allocWaitThreshold ,allOtherCasesPriority , answerPagingPriority , assignRequestPriority , bscQueuingOption ,

callReestablishmentPriority , emergencyCallPriority , interCellHOExtPriority ,interCellHOIntPriority , intraCellHOIntPriority , otherServicesPriority , small to large zone HOPriority , directedRetryPrio , intraCellQueuing .

3.2.11 SMS-CB

smsCB , noOfBlocksForAccessGrant , channelType .

3.2.12 FREQUENCY HOPPING

btsIsHopping , hoppingSequenceNumber , maio , siteGsmFctList , cellAllocation ,mobileAllocation , fhsRef , bscHopReconfUse , btsHopReconfRestart , btsThresholdHopReconf ,zoneFrequencyHopping , zoneFrequencyThreshold .

3.2.13 SELECTION / RESELECTION (IDLE MODE)

cellBarQualify , cellBarred , rxLevAccessMin , msTxPwrMaxCCH , cellReselInd ,cellReselectHysteresis , cellReselectOffset , temporaryOffset , penaltyTime ,rndAccTimAdvThreshold .

3.2.14 DYNAMIC BARRING OF ACCESS CLASSbscMsAccessClassBarringFunction , btsMsAccessClassBarringFunction ,accessClassCongestion , numberOfTCHFreeBeforeCongestion ,numberOfTCHFreeToEndCongestion , numberOfTCHQueuedBeforeCongestion ,numberOfTCHQueuedToEndCongestion , notAllowedAccessClasses .

3.2.15 DTX

dtxMode , cellDtxDowlink .

3.2.16 UPLINK POWER CONTROL

uplinkPowerControl , new power control algorithm , runPowerControl , , powerIncrStepSizeUL ,powerRedStepSizeUL , lRxQualULP , uRxQualULP , lRxLevULP , uRxLevULP , msTxPwrMax ,msTxPwrMax2ndBand .

3.2.17 DOWNLINK POWER CONTROL

bsPowerControl , new power control algorithm , runPwrControl , powerIncrStepSizeDL ,

powerRedStepSizeDL , lRxQualDLP , uRxQualDLP , lRxLevDLP , uRxLevDLP .


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3.2.18 DIRECTED RETRY HANDOVER

interBscDirectedRetry , intraBscDirectedRetry , interBscDirectedRetryFromCell ,intraBscDirectedRetryFromCell , modeModifyMandatory , directedRetryModeUsed ,

msTxPwrMaxCell , msTxPwrMax , directedRetry , adjacent cell umbrella ref , directedRetryPrio .

3.2.19 UPLINK INTRACELL HANDOVER

intraCell , intraCellSDCCH , runHandOver , rxLevULIH , lrxQualULH , rxQualULIH .

3.2.20 DOWNLINK INTRACELL HANDOVER

intraCell , intraCellSDCCH , runHandOver , rxLevDLIH , lRxQualDLH , rxQualDLIH .

3.2.21 INTERCELL HANDOVER ON BAD UPLINK QUALITYCRITERION

handOver from signalling channel , runHandOver , lrxQualULH , hoMarginRxQual .

3.2.22 INTERCELL HANDOVER ON BAD DOWNLINK QUALITYCRITERION

handOver from signalling channel , runHandOver , lRxQualDLH , hoMarginRxQual .

3.2.23 INTERCELL HANDOVER ON BAD UPLINK LEVEL CRITERION

handOver from signalling channel , runHandOver , lRxLevULH , hoMarginRxLev .

3.2.24 INTERCELL HANDOVER ON BAD DOWNLINK LEVELCRITERION

handOver from signalling channel , runHandOver , lRxLevDLH , hoMarginRxLev .

3.2.25 INTERCELL HANDOVER ON POWER BUDGET CRITERIONhandOver from signalling channel , runHandOver , powerBudgetInterCell , hoMargin ,rxLevDLPBGT .

3.2.26 MICROCELLULAR ALGORITHM

handOver from signalling channel , runHandOver , cellType , microCellCaptureTimer ,microCellStability , rxNCellHreqave .


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3.2.27 INTERCELL HANDOVER ON DISTANCE CRITERION

msBtsDistanceInterCell , handOver from signalling channel , runHandOver ,hoMarginDist .

3.2.28 HANDOVER FOR TRAFFIC REASONS (V12)

handOver from signalling channel , runHandOver , hoTraffic , hoMarginTrafficOffset .

3.2.29 HANDOVER DECISION ACCORDING TO ADJACENT CELL(V12)

handOver from signalling channel , runHandOver , offsetLoad , offsetPriority .

3.2.30 GENERAL PROTECTION AGAINST HO PINGPONG (V12)hoPingpongCombination , hoPingpongTimeRejection .

3.2.31 CALL CLEARING

callClearing , runCallClear .

3.2.32 FREQUENCY BAND FAVOURING

early classmark sending , multi band reporting , cellBarred , cellBarQualify , hoMargin ,hoMarginDist , hoMarginRxQual , hoMarginRxLev , offsetPriority .

3.2.33 MINIMUM TIME BETWEEN HANDOVER (BEFORE V12)

timeBetweenHOConfiguration , bts Time Between HO configuration .

3.2.34 RADIO RESOURCE CONTROL AT CELL LEVEL

radResSupervision , radResSupBusyTimer , radResSupFreeTimer .

3.2.35 PRE-SYNCHRONISED HANDOVER

synchronised , preSynchroTimingAdvance .

3.2.36 INTERFERER CANCELLATION

interferer cancel algo usage .

3.2.37 EARLY HO DECISION

hoMarginBeg , rxLevHreqaveBeg , rxLevNCellHreqaveBeg .


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3.2.38 MAXIMUM RXLEV FOR PBGT

rxLevDLPBGT .

3.2.39 CELL TIERING (V12)

interferenceType , intraCell , measurementProcAlgorithm , nbLargeReuseDataChannels ,hoMarginTiering , pwciHreqave , numberOfPwciSamples , selfTuningObs .

3.2.40 2G -3G MOBILITY (V14.2)

uMTSAccessMinLevel , uMTSReselectionARFCN , uMTSReselectionOffset ,uMTSSearchLevel .

3.2.41 TTY SUPPORT ON BSC/TCU 3

Documents

BSS Parameters User Guide V15.1.1