GBSS9.0

GBSS Feature Parameter DescriptionIssue Date 08 20110930

HUAWEI TECHNOLOGIES CO., LTD.

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Issue 08 (20110930)

Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd.

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Contents1 Library Information......................................................................................................................11.1 Library Overview...............................................................................................................................................2 1.2 Library Changes...............................................................................................................................................20 1.3 Glossary............................................................................................................................................................21 1.3.1 Numerics..................................................................................................................................................22 1.3.2 A..............................................................................................................................................................22 1.3.3 B...............................................................................................................................................................27 1.3.4 C...............................................................................................................................................................30 1.3.5 D..............................................................................................................................................................37 1.3.6 E...............................................................................................................................................................40 1.3.7 F...............................................................................................................................................................43 1.3.8 G..............................................................................................................................................................46 1.3.9 H..............................................................................................................................................................49 1.3.10 I..............................................................................................................................................................52 1.3.11 K............................................................................................................................................................55 1.3.12 L.............................................................................................................................................................56 1.3.13 M............................................................................................................................................................58 1.3.14 N............................................................................................................................................................62 1.3.15 O............................................................................................................................................................65 1.3.16 P.............................................................................................................................................................66 1.3.17 Q............................................................................................................................................................72 1.3.18 R.............................................................................................................................................................72 1.3.19 S.............................................................................................................................................................77 1.3.20 T.............................................................................................................................................................84 1.3.21 U............................................................................................................................................................88 1.3.22 V............................................................................................................................................................89 1.3.23 W...........................................................................................................................................................90 1.3.24 X............................................................................................................................................................91

2 GBSS Feature Parameter Description......................................................................................922.1 Tutorial Introduction to Basic Features of GBSS9.0........................................................................................98 2.2 Tutorial Introduction to Optional Features Of GBSS9.0................................................................................104 2.3 2-Antenna Receive Diversity..........................................................................................................................116 2.3.1 Introduction...........................................................................................................................................116 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. ii

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2.3.1.1 Scope............................................................................................................................................116 2.3.1.2 Intended Audience........................................................................................................................ 116 2.3.1.3 Change History.............................................................................................................................116 2.3.2 Overview...............................................................................................................................................117 2.3.3 Technical Description............................................................................................................................117 2.3.3.1 Technical Principle.......................................................................................................................117 2.3.3.2 Diversity Combining Algorithms.................................................................................................118 1. MRC.....................................................................................................................................................118 2. ICC........................................................................................................................................................118 3. EICC.....................................................................................................................................................118 2.3.4 Parameters.............................................................................................................................................119 2.3.5 Counters.................................................................................................................................................120 2.3.6 Glossary.................................................................................................................................................120 2.3.7 Reference Documents............................................................................................................................120 2.4 2G/3G Interoperability...................................................................................................................................121 2.4.1 Introduction...........................................................................................................................................121 2.4.1.1 Scope............................................................................................................................................121 2.4.1.2 Intended Audience........................................................................................................................ 121 2.4.1.3 Change History.............................................................................................................................121 2.4.2 Overview...............................................................................................................................................123 2.4.3 Technical Description............................................................................................................................124 2.4.3.1 Measurement of Neighboring UMTS Cells..................................................................................124 2.4.3.2 Common Measurement and Information Exchange Based on Iur-g............................................125 1. Introduction to the Iur-g Interface........................................................................................................125 2. Common Measurement.........................................................................................................................126 3. Information Exchange..........................................................................................................................128 2.4.3.3 2G/3G Inter-RAT Cell Reselection..............................................................................................129 1. Inter-RAT Cell Reselection from UMTS to GSM...............................................................................129 2. Inter-RAT Cell Reselection from GSM to UMTS...............................................................................129 3. Fast 3G Reselection at 2G CS Call Release.........................................................................................131 4. NACC and NC2....................................................................................................................................132 2.4.3.4 2G/3G Inter-RAT Handover.........................................................................................................133 1. Inter-RAT Handover from UMTS to GSM.......................................................................................... 133 2. Inter-RAT Handover from GSM to UMTS.......................................................................................... 133 3. 2G/3G Service Distribution and Load Balancing in Access State.......................................................134 4. Inter-RAT Load-based Handover in Connected State..........................................................................136 2.4.4 Engineering Guidelines.........................................................................................................................136 2.4.5 Parameters.............................................................................................................................................137 2.4.6 Counters.................................................................................................................................................148 2.4.7 Glossary.................................................................................................................................................148 2.4.8 Reference Documents............................................................................................................................148 2.5 2G/3G Interoperability (TDD)........................................................................................................................149 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iii

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2.5.1 Introduction...........................................................................................................................................149 2.5.1.1 Scope............................................................................................................................................149 2.5.1.2 Intended Audience........................................................................................................................149 2.5.1.3 Change History.............................................................................................................................149 2.5.2 Overview...............................................................................................................................................150 2.5.3 Technical Description............................................................................................................................151 2.5.3.1 Measurement of Neighboring UMTS Cells..................................................................................151 2.5.3.2 2G/3G Inter-RAT Cell Reselection..............................................................................................152 1. Inter-RAT Cell Reselection from UMTS to GSM...............................................................................152 2. Inter-RAT Cell Reselection from GSM to UMTS...............................................................................153 3. Fast 3G Reselection at 2G CS Call Release.........................................................................................153 4. NACC and NC2....................................................................................................................................155 2.5.3.3 2G/3G Inter-RAT Handover.........................................................................................................155 1. Inter-RAT Handover from UMTS to GSM..........................................................................................156 2. Inter-RAT Handover from GSM to UMTS..........................................................................................156 3. 2G/3G Inter-RAT Load Handover.......................................................................................................157 4. 2G/3G Inter-RAT Service Handover....................................................................................................157 2.5.3.4 GSM/TD-SCDMA Interoperability Optimization........................................................................158 2.5.3.5 PS GSM and TD-SCDMA Interoperability Optimization...........................................................158 2.5.4 Engineering Guidelines.........................................................................................................................159 2.5.5 Parameters.............................................................................................................................................160 2.5.6 Counters.................................................................................................................................................166 2.5.7 Glossary.................................................................................................................................................166 2.5.8 Reference Documents............................................................................................................................166 2.6 Abis Bypass....................................................................................................................................................166 2.6.1 Introduction...........................................................................................................................................166 2.6.1.1 Scope............................................................................................................................................166 2.6.1.2 Intended Audience........................................................................................................................166 2.6.1.3 Change History.............................................................................................................................167 2.6.2 Overview...............................................................................................................................................167 2.6.3 Technical Description............................................................................................................................168 2.6.3.1 Key Technologies.........................................................................................................................169 2.6.4 Parameters.............................................................................................................................................170 2.6.5 Counters.................................................................................................................................................170 2.6.6 Glossary.................................................................................................................................................170 2.6.7 Reference Documents............................................................................................................................170 2.7 Acoustic Echo Cancellation............................................................................................................................170 2.7.1 Introduction...........................................................................................................................................170 2.7.1.1 Scope............................................................................................................................................170 2.7.1.2 Intended Audience........................................................................................................................170 2.7.1.3 Change History.............................................................................................................................170 2.7.2 Overview...............................................................................................................................................171 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. iv

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2.7.3 Technical Description............................................................................................................................172 2.7.4 Parameters.............................................................................................................................................172 2.7.5 Counters.................................................................................................................................................174 2.7.6 Glossary.................................................................................................................................................174 2.7.7 References.............................................................................................................................................174 2.8 AFC................................................................................................................................................................174 2.8.1 Introduction...........................................................................................................................................174 2.8.1.1 Scope............................................................................................................................................174 2.8.1.2 Intended Audience........................................................................................................................174 2.8.1.3 Change History.............................................................................................................................174 2.8.2 Overview...............................................................................................................................................175 2.8.3 Technical Description............................................................................................................................176 2.8.4 Parameters.............................................................................................................................................176 2.8.5 Counters.................................................................................................................................................177 2.8.6 Glossary.................................................................................................................................................177 2.8.7 Reference Documents............................................................................................................................177 2.9 AMR...............................................................................................................................................................177 2.9.1 Introduction...........................................................................................................................................177 2.9.1.1 Scope............................................................................................................................................177 2.9.1.2 Intended Audience........................................................................................................................177 2.9.1.3 Change History.............................................................................................................................178 2.9.2 Overview...............................................................................................................................................179 2.9.3 Technical Description............................................................................................................................180 2.9.3.1 Inband Signaling...........................................................................................................................180 2.9.3.2 Speech Rate Adjustment...............................................................................................................181 2.9.3.3 Rate Adjustment Threshold Adaptation.......................................................................................184 2.9.3.4 AMR Power Control.....................................................................................................................185 2.9.3.5 Handover......................................................................................................................................185 2.9.3.6 Impact on KPI...............................................................................................................................185 2.9.4 Engineering Guidelines.........................................................................................................................186 2.9.5 Parameters.............................................................................................................................................186 2.9.6 Counters.................................................................................................................................................197 2.9.7 Glossary.................................................................................................................................................197 2.9.8 Reference Documents............................................................................................................................197 2.10 Antenna Frequency Hopping........................................................................................................................198 2.10.1 Introduction.........................................................................................................................................198 2.10.1.1 Scope..........................................................................................................................................198 2.10.1.2 Intended Audience......................................................................................................................198 2.10.1.3 Change History...........................................................................................................................198 2.10.2 Overview.............................................................................................................................................199 2.10.3 Technical Description..........................................................................................................................200 2.10.3.1 Antenna Hopping Selection Algorithm......................................................................................200 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. v

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2.10.3.2 Relation Between Antenna Frequency Hopping and Frequency Hopping.................................201 2.10.4 Parameters...........................................................................................................................................201 2.10.5 Counters...............................................................................................................................................202 2.10.6 Glossary...............................................................................................................................................202 2.10.7 Reference Documents..........................................................................................................................202 2.11 AQM.............................................................................................................................................................202 2.11.1 Introduction.........................................................................................................................................202 2.11.1.1 Scope..........................................................................................................................................202 2.11.1.2 Intended Audience......................................................................................................................202 2.11.1.3 Change History...........................................................................................................................203 2.11.2 Overview.............................................................................................................................................203 2.11.3 Technical Description..........................................................................................................................204 2.11.4 Engineering Guidelines.......................................................................................................................206 2.11.5 Parameters...........................................................................................................................................206 2.11.6 Counters...............................................................................................................................................207 2.11.7 Glossary...............................................................................................................................................208 2.11.8 Reference Documents..........................................................................................................................208 2.12 Assignment and Immediate Assignment......................................................................................................208 2.12.1 Introduction.........................................................................................................................................208 2.12.1.1 Scope..........................................................................................................................................208 2.12.1.2 Intended Audience......................................................................................................................208 2.12.1.3 Change History...........................................................................................................................208 2.12.2 Overview of Assignment and Immediate Assignment........................................................................209 2.12.3 Technical Description..........................................................................................................................209 2.12.3.1 Immediate Assignment...............................................................................................................209 1. Immediate Assignment Procedure........................................................................................................209 2. Immediate Assignment Combination...................................................................................................211 2.12.3.2 Assignment.................................................................................................................................211 1. Assignment Procedure..........................................................................................................................211 2. Assignment Classification....................................................................................................................213 2.12.4 Parameters...........................................................................................................................................217 2.12.5 Counters...............................................................................................................................................220 2.12.6 Glossary...............................................................................................................................................220 2.12.7 Reference Documents..........................................................................................................................220 2.13 Ater Compression Transmission..................................................................................................................220 2.13.1 Introduction.........................................................................................................................................220 2.13.1.1 Scope..........................................................................................................................................220 2.13.1.2 Intended Audience......................................................................................................................221 2.13.1.3 Change History...........................................................................................................................221 2.13.2 Overview.............................................................................................................................................221 2.13.3 Technical Description..........................................................................................................................222 2.13.3.1 Network Topologies...................................................................................................................222 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. vi

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1. Network Topology in Non-TC Pool Mode...........................................................................................222 2. Network Topology in TC Pool Mode...................................................................................................223 2.13.3.2 Technologies in Ater Compression Transmission......................................................................224 1. Speech Frame Processing.....................................................................................................................224 2. Packet Multiplexing..............................................................................................................................226 3. Reliability.............................................................................................................................................227 2.13.4 Engineering Guidelines.......................................................................................................................227 2.13.5 Parameters...........................................................................................................................................227 2.13.6 Counters...............................................................................................................................................228 2.13.7 Glossary...............................................................................................................................................228 2.13.8 Reference Documents..........................................................................................................................229 2.14 Automatic Level Control..............................................................................................................................229 2.14.1 Introduction.........................................................................................................................................229 2.14.1.1 Scope..........................................................................................................................................229 2.14.1.2 Intended Audience......................................................................................................................229 2.14.1.3 Change History...........................................................................................................................229 2.14.2 Overview.............................................................................................................................................230 2.14.3 Technical Description..........................................................................................................................231 2.14.4 Parameters...........................................................................................................................................231 2.14.5 Counters...............................................................................................................................................233 2.14.6 Glossary...............................................................................................................................................233 2.14.7 References...........................................................................................................................................233 2.15 Automatic Noise Compensation...................................................................................................................233 2.15.1 Introduction.........................................................................................................................................233 2.15.1.1 Scope..........................................................................................................................................233 2.15.1.2 Intended Audience......................................................................................................................233 2.15.1.3 Change History...........................................................................................................................234 2.15.2 Overview.............................................................................................................................................234 2.15.3 Technical Description..........................................................................................................................234 2.15.4 Parameters...........................................................................................................................................235 2.15.5 Counters...............................................................................................................................................236 2.15.6 Glossary...............................................................................................................................................236 2.15.7 Reference Documents..........................................................................................................................236 2.16 Automatic Noise Restraint............................................................................................................................236 2.16.1 Introduction.........................................................................................................................................236 2.16.1.1 Scope..........................................................................................................................................236 2.16.1.2 Intended Audience......................................................................................................................237 2.16.1.3 Change History...........................................................................................................................237 2.16.2 Overview.............................................................................................................................................238 2.16.3 Technical Description..........................................................................................................................238 2.16.4 Parameters...........................................................................................................................................239 2.16.5 Counters...............................................................................................................................................240 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. vii

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2.16.6 Glossary...............................................................................................................................................240 2.16.7 References...........................................................................................................................................240 2.17 BCCH Dense Frequency Multiplexing.........................................................................................................240 2.17.1 Introduction.........................................................................................................................................240 2.17.1.1 Scope..........................................................................................................................................240 2.17.1.2 Intended Audience......................................................................................................................240 2.17.1.3 Change History...........................................................................................................................241 2.17.2 Overview.............................................................................................................................................241 2.17.3 Technical Principles............................................................................................................................242 2.17.4 Engineering Guidelines.......................................................................................................................244 2.17.5 Parameters...........................................................................................................................................244 2.17.6 Counters...............................................................................................................................................246 2.17.7 Glossary...............................................................................................................................................246 2.17.8 Reference Documents..........................................................................................................................246 2.18 BSC Node Redundancy................................................................................................................................247 2.18.1 Introduction.........................................................................................................................................247 2.18.1.1 Scope..........................................................................................................................................247 2.18.1.2 Intended Audience......................................................................................................................247 2.18.1.3 Change History...........................................................................................................................247 2.18.2 Overview.............................................................................................................................................248 2.18.3 Technical Description..........................................................................................................................250 2.18.3.1 Network Topologies...................................................................................................................250 1. Network Topologies on the Abis Interface...........................................................................................250 2. Network Topologies on the A and Gb Interfaces.................................................................................253 3. Network Topology on the Inter-BSC Interface....................................................................................255 2.18.3.2 Fault Detection...........................................................................................................................255 2.18.3.3 Migration of Service Objects......................................................................................................256 1. Dual-Homed OPCs...............................................................................................................................256 2. Dual-Homed BTSs...............................................................................................................................256 3. Dual-Homed Cells and PTP BVC Objects...........................................................................................257 4. Re-Homing Policy of Dual-Homed Service Objects............................................................................257 2.18.3.4 Audit of Dual-Homed Service Objects.......................................................................................258 2.18.3.5 Maintenance of Dual-Homed Service Objects...........................................................................258 2.18.4 Engineering Guidelines.......................................................................................................................258 2.18.5 Parameters...........................................................................................................................................259 2.18.6 Counters...............................................................................................................................................262 2.18.7 Glossary...............................................................................................................................................262 2.18.8 Reference Documents..........................................................................................................................262 2.19 BSS Local Switching....................................................................................................................................262 2.19.1 Introduction.........................................................................................................................................262 2.19.1.1 Scope..........................................................................................................................................263 2.19.1.2 Intended Audience......................................................................................................................263 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. viii

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2.19.1.3 Change History...........................................................................................................................263 2.19.2 Overview.............................................................................................................................................264 2.19.3 Technical Description..........................................................................................................................268 2.19.3.1 Principles....................................................................................................................................268 1. Principles of BSC Local Switching......................................................................................................268 2. Principles of BTS Local Switching......................................................................................................269 2.19.3.2 Procedures Related to BSS Local Switching..............................................................................270 1. Triggering of the BSS Local Switching Call........................................................................................270 2. Restoration of the BSS Local Switching Call......................................................................................274 3. Handover of the BSS Local Switching Call.........................................................................................275 2.19.3.3 Impact on CN Services...............................................................................................................275 2.19.4 Engineering Guidelines.......................................................................................................................277 2.19.5 Parameters...........................................................................................................................................277 2.19.6 Counters...............................................................................................................................................288 2.19.7 Glossary...............................................................................................................................................289 2.19.8 Reference Documents..........................................................................................................................289 2.20 BTS Combined Cabinets and Cabinet Groups.............................................................................................289 2.20.1 Introduction.........................................................................................................................................289 2.20.1.1 Scope..........................................................................................................................................289 2.20.1.2 Intended Audience......................................................................................................................289 2.20.1.3 Change History...........................................................................................................................289 2.20.2 Overview.............................................................................................................................................290 2.20.3 Technical Description..........................................................................................................................291 2.20.3.1 Combined Cabinets and Cabinet Groups of the BTS3012.........................................................291 2.20.3.2 Combined Cabinets and Cabinet Groups of the BTS3006C......................................................292 2.20.3.3 Combined Cabinets and Cabinet Groups of the BTS3002E.......................................................294 2.20.3.4 Hybrid Cabinet Groups of the BTS3012 and the BTS3X..........................................................296 2.20.4 Engineering Guidelines.......................................................................................................................297 2.20.5 Parameters...........................................................................................................................................297 2.20.6 Counters...............................................................................................................................................297 2.20.7 Glossary...............................................................................................................................................297 2.20.8 Reference Documents..........................................................................................................................297 2.21 BTS Ring Topology......................................................................................................................................298 2.21.1 Introduction.........................................................................................................................................298 2.21.1.1 Scope..........................................................................................................................................298 2.21.1.2 Intended Audience......................................................................................................................298 2.21.1.3 Change History...........................................................................................................................298 2.21.2 Overview.............................................................................................................................................299 2.21.3 Technical Description..........................................................................................................................301 2.21.3.1 Networking Modes.....................................................................................................................301 2.21.3.2 Application Scenarios.................................................................................................................302 2.21.3.3 BTS Ring Topology Categories.................................................................................................302 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. ix

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2.21.3.4 Switchover Modes......................................................................................................................304 2.21.4 Engineering Guidelines.......................................................................................................................305 2.21.5 Parameters...........................................................................................................................................306 2.21.6 Counters...............................................................................................................................................309 2.21.7 Glossary...............................................................................................................................................309 2.21.8 Reference Documents..........................................................................................................................309 2.22 Cell Broadcast...............................................................................................................................................310 2.22.1 Introduction.........................................................................................................................................310 2.22.1.1 Scope..........................................................................................................................................310 2.22.1.2 Intended Audience......................................................................................................................310 2.22.1.3 Change History...........................................................................................................................310 2.22.2 Overview.............................................................................................................................................311 2.22.3 Technical Description..........................................................................................................................313 2.22.3.1 Technical Principle.....................................................................................................................313 2.22.3.2 Cell Broadcast Messages............................................................................................................315 2.22.3.3 Standard Cell Broadcast.............................................................................................................315 2.22.3.4 Simple Cell Broadcast................................................................................................................317 2.22.4 Parameters...........................................................................................................................................317 2.22.5 Counters...............................................................................................................................................327 2.22.6 Glossary...............................................................................................................................................327 2.22.7 Reference Documents..........................................................................................................................327 2.23 Channel Management...................................................................................................................................327 2.23.1 Introduction.........................................................................................................................................327 2.23.1.1 Scope..........................................................................................................................................327 2.23.1.2 Intended Audience......................................................................................................................327 2.23.1.3 Change History...........................................................................................................................328 2.23.2 Overview.............................................................................................................................................328 2.23.3 Technical Description..........................................................................................................................329 2.23.3.1 Channel allocation procedure.....................................................................................................329 2.23.3.2 Channel Allocation in the Immediate Assignment Procedure....................................................330 2.23.3.3 Channel Allocation in the Assignment Procedure......................................................................330 2.23.3.4 Channel Allocation in the Handover Procedure.........................................................................332 2.23.3.5 Huawei Channel Allocation Algorithm......................................................................................332 1. Channel Priorities.................................................................................................................................333 2. Channel Allocate Strategy....................................................................................................................334 3. Preferentially Allocating Channels on the BCCH TRX to Non-AMR Calls.......................................335 2.23.3.6 Post-Processing of Channel Allocation......................................................................................335 2.23.4 Parameters...........................................................................................................................................335 2.23.5 Counters...............................................................................................................................................341 2.23.6 Glossary...............................................................................................................................................341 2.23.7 Reference Documents..........................................................................................................................341 2.24 Ciphering......................................................................................................................................................342 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. x

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2.24.1 Introduction.........................................................................................................................................342 2.24.1.1 Scope..........................................................................................................................................342 2.24.1.2 Intended Audience......................................................................................................................342 2.24.1.3 Change History...........................................................................................................................342 2.24.2 Overview.............................................................................................................................................343 2.24.3 Technical Description..........................................................................................................................344 2.24.3.1 Kc and Its Generation.................................................................................................................344 2.24.3.2 A5 Ciphering Algorithm.............................................................................................................345 2.24.3.3 Algorithm Selection....................................................................................................................346 2.24.3.4 Signaling Procedure....................................................................................................................347 2.24.3.5 Improvements in A5 Ciphering Algorithm................................................................................348 2.24.3.6 Impact on KPI.............................................................................................................................349 2.24.4 Engineering Guidelines.......................................................................................................................349 2.24.5 Parameters...........................................................................................................................................349 2.24.6 Counters...............................................................................................................................................351 2.24.7 Glossary...............................................................................................................................................351 2.24.8 Reference Documents..........................................................................................................................351 2.25 Discontinuous Transmission and Discontinuous Reception........................................................................352 2.25.1 Introduction.........................................................................................................................................352 2.25.1.1 Scope..........................................................................................................................................352 2.25.1.2 Intended Audience......................................................................................................................352 2.25.1.3 Change History...........................................................................................................................352 2.25.2 Overview.............................................................................................................................................353 2.25.3 Technical Description..........................................................................................................................353 2.25.3.1 DTX............................................................................................................................................353 2.25.3.2 DRX............................................................................................................................................355 2.25.4 Parameters...........................................................................................................................................356 2.25.5 Counters...............................................................................................................................................359 2.25.6 Glossary...............................................................................................................................................359 2.25.7 Reference Documents..........................................................................................................................359 2.26 Dual Carriers in Downlink...........................................................................................................................359 2.26.1 Introduction.........................................................................................................................................359 2.26.1.1 Scope..........................................................................................................................................359 2.26.1.2 Intended Audience......................................................................................................................359 2.26.1.3 Change History...........................................................................................................................360 2.26.2 Overview.............................................................................................................................................360 2.26.3 Technical Description..........................................................................................................................362 2.26.3.1 Channel Allocation Algorithm...................................................................................................362 2.26.3.2 MSRD.........................................................................................................................................363 2.26.4 Engineering Guidelines.......................................................................................................................364 2.26.5 Parameters...........................................................................................................................................364 2.26.6 Counters...............................................................................................................................................366 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. xi

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2.26.7 Glossary...............................................................................................................................................366 2.26.8 Reference Documents..........................................................................................................................366 2.27 DTM.............................................................................................................................................................366 2.27.1 Introduction.........................................................................................................................................366 2.27.1.1 Scope..........................................................................................................................................366 2.27.1.2 Intended Audience......................................................................................................................366 2.27.1.3 Change History...........................................................................................................................367 2.27.2 Overview.............................................................................................................................................367 2.27.3 Technical Description..........................................................................................................................368 2.27.3.1 Channel Operation Mode............................................................................................................368 2.27.3.2 DTM Multislot Capability..........................................................................................................369 2.27.3.3 Channel Allocation.....................................................................................................................371 2.27.3.4 Using the Main DCCH to Transmit GPRS Signaling in Dedicated Mode.................................373 2.27.3.5 DTM Services.............................................................................................................................374 2.27.4 Engineering Guidelines.......................................................................................................................378 2.27.5 Parameters...........................................................................................................................................378 2.27.6 Counters...............................................................................................................................................380 2.27.7 Glossary...............................................................................................................................................380 2.27.8 Reference Documents..........................................................................................................................380 2.28 Dynamic Channel Conversion......................................................................................................................381 2.28.1 Introduction.........................................................................................................................................381 2.28.1.1 Scope..........................................................................................................................................381 2.28.1.2 Intended Audience......................................................................................................................381 2.28.1.3 Change History...........................................................................................................................381 2.28.2 Overview.............................................................................................................................................382 2.28.3 Technical Description..........................................................................................................................383 2.28.3.1 Dynamic SDCCH Conversion....................................................................................................383 1. Overview..............................................................................................................................................383 2. Dynamic SDCCH Conversion Decision...............................................................................................383 3. Dynamic SDCCH Conversion Execution.............................................................................................387 4. SDCCH Reversion Decision................................................................................................................388 5. SDCCH Reversion Procedure..............................................................................................................389 6. Impact...................................................................................................................................................389 2.28.3.2 TCH HR/FR Conversion............................................................................................................390 1. Overview..............................................................................................................................................390 2. Rate Adjustment Algorithms for Different Channel Requests.............................................................390 3. TCH HR/FR Conversion Procedures...................................................................................................393 2.28.3.3 Dynamic PDCH Conversion......................................................................................................395 1. Overview..............................................................................................................................................395 2. Dynamic PDCH Conversion Procedure...............................................................................................395 2.28.4 Parameters...........................................................................................................................................398 2.28.5 Counters...............................................................................................................................................400 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. xii

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2.28.6 Glossary...............................................................................................................................................400 2.28.7 Reference Documents..........................................................................................................................400 2.29 Easy GSM.....................................................................................................................................................400 2.29.1 Introduction.........................................................................................................................................401 2.29.1.1 Scope..........................................................................................................................................401 2.29.1.2 Intended Audience......................................................................................................................401 2.29.1.3 Change History...........................................................................................................................401 2.29.2 Overview.............................................................................................................................................402 2.29.3 Technical Description..........................................................................................................................403 2.29.3.1 Automatic Frequency Planning of Compact BTS......................................................................403 1. Overview..............................................................................................................................................403 2. Algorithm..............................................................................................................................................404 3. Procedure..............................................................................................................................................404 2.29.3.2 Automatic Frequency Optimization of Compact BTS...............................................................406 1. Overview..............................................................................................................................................406 2. Algorithm..............................................................................................................................................406 2.29.3.3 Automatic Capacity and Coverage Planning of Compact BTS..................................................409 1. Overview..............................................................................................................................................409 2. Algorithm..............................................................................................................................................409 2.29.4 Dependency.........................................................................................................................................410 2.29.5 Engineering Guidelines.......................................................................................................................411 2.29.6 Parameters...........................................................................................................................................412 2.29.7 Counters...............................................................................................................................................414 2.29.8 Glossary...............................................................................................................................................414 2.29.9 Reference Documents..........................................................................................................................414 2.30 EFR...............................................................................................................................................................414 2.30.1 Introduction.........................................................................................................................................414 2.30.1.1 Scope..........................................................................................................................................414 2.30.1.2 Intended Audience......................................................................................................................414 2.30.1.3 Change History...........................................................................................................................415 2.30.2 Overview.............................................................................................................................................415 2.30.3 Technical Description..........................................................................................................................415 2.30.3.1 Improvement of EFR on FR and HR..........................................................................................416 2.30.3.2 TFO.............................................................................................................................................416 2.30.4 Parameters...........................................................................................................................................416 2.30.5 Counters...............................................................................................................................................417 2.30.6 Glossary...............................................................................................................................................417 2.30.7 Reference Documents..........................................................................................................................417 2.31 EGPRS2........................................................................................................................................................418 2.31.1 Introduction.........................................................................................................................................418 2.31.1.1 Scope..........................................................................................................................................418 2.31.1.2 Intended Audience......................................................................................................................418 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. xiii

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2.31.1.3 Change History...........................................................................................................................418 2.31.2 Overview.............................................................................................................................................419 2.31.3 Technical Description..........................................................................................................................420 2.31.3.1 Modulation Schemes and Coding Schemes................................................................................420 1. EGPRS2-A Modulation Schemes.........................................................................................................420 2. EGPRS2-A Coding Schemes................................................................................................................422 2.31.3.2 Link Quality Control..................................................................................................................423 1. Overview..............................................................................................................................................423 2. Uplink EGPRS2-A Coding Scheme Adjustment Algorithm................................................................424 3. Downlink EGPRS2-A Coding Scheme Adjustment Algorithm...........................................................425 2.31.3.3 EGPRS Level Selection and Switching......................................................................................425 2.31.3.4 Carrier Allocation Algorithm.....................................................................................................426 2.31.3.5 Channel Allocation Algorithm...................................................................................................426 2.31.3.6 Multiplexing of GPRS, EGPRS, and EGPRS2 Capable MSs ...................................................427 2.31.3.7 Data Transmission......................................................................................................................427 2.31.4 Parameters...........................................................................................................................................428 2.31.5 Counters...............................................................................................................................................435 2.31.6 Glossary...............................................................................................................................................435 2.31.7 Reference Documents..........................................................................................................................435 2.32 eMLPP..........................................................................................................................................................435 2.32.1 Introduction.........................................................................................................................................435 2.32.1.1 Scope..........................................................................................................................................436 2.32.1.2 Intended Audience......................................................................................................................436 2.32.1.3 Change History...........................................................................................................................436 2.32.2 Overview.............................................................................................................................................437 2.32.3 Technical Description..........................................................................................................................437 2.32.3.1 A Interface Parameters Involved in eMLPP...............................................................................437 2.32.3.2 Call Establishment Procedure.....................................................................................................438 2.32.3.3 Priority-Based Resource Reservation.........................................................................................439 2.32.4 Parameters...........................................................................................................................................439 2.32.5 Counters...............................................................................................................................................441 2.32.6 Glossary...............................................................................................................................................441 2.32.7 Reference Documents..........................................................................................................................441 2.33 EMR..............................................................................................................................................................441 2.33.1 Introduction.........................................................................................................................................442 2.33.1.1 Scope..........................................................................................................................................442 2.33.1.2 Intended Audience......................................................................................................................442 2.33.1.3 Change History...........................................................................................................................442 2.33.2 Overview.............................................................................................................................................443 2.33.3 Technical Description..........................................................................................................................444 2.33.3.1 Implementation in the BSS.........................................................................................................444 2.33.3.2 Measurement Report Preprocessing...........................................................................................445 Issue 08 (20110930) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. xiv

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2.33.3.3 2G/3G Interoperability...............................................................................................................445 2.33.3.4 DTX............................................................................................................................................446 2.33.3.5 Handover and Power Control.....................................................................................................446 2.33.4 Engineering Guidelines.......................................................................................................................447 2.33.5 Parameters...........................................................................................................................................448 2.33.6 Counters...............................................................................................................................................452 2.33.7 Glossary...............................................................................................................................................452 2.33.8 Reference Documents..........................................................................................................................452 2.34 EPLC............................................................................................................................................................452 2.34.1 Introduction.........................................................................................................................................452 2.34.1.1 Scope..........................................................................................................................................452 2.34.1.2 Intended Audience......................................................................................................................452 2.34.1.3 Change History...........................................................................................................................452 2.34.2 Overview.............................................................................................................................................453 2.34.3 Technical Description..........................................................................................................................453 2.34.4 Parameters...........................................................................................................................................455 2.34.5 Counters...............................................................................................................................................455 2.34.6 Glossary...............................................................................................................................................455 2.34.7 Reference Documents..........................................................................................................................455 2.35 Flex Abis.......................................................................................................................................................455 2.35.1 Introduction.........................................................................................................................................456 2.35.1.1 Scope..........................................................................................................................................456 2.35.1.2 Intended Audience......................................................................................................................456 2.35.1.3 Change History...........................................................................................................................456 2.35.2 Overview.............................................................................................................................................457 2.35.3 Technical Description..........................................................................................................................457 2.35.3.1 Networking Configuration..........................................................................................................459 2.35.3.2 Establishment of Transmission Link..........................................................................................459 2.35.3.3 Algorit