bss feature description(v900r008c01_02)

HUAWEI BSC6000 Base Station Subsystem V900R008

BSS Feature Description

Issue Date INTERNAL

02 2008-06-30

Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd

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Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd

HUAWEI BSC6000 Base Station Subsystem BSS Feature Description

Contents

Contents1 BSS Feature Description...........................................................................................................1-1 2 Channel Management...............................................................................................................2-12.1 Overview.........................................................................................................................................................2-2 2.2 Availability......................................................................................................................................................2-3 2.3 Technical Description.....................................................................................................................................2-4 2.3.1 Channel Assignment Procedure.............................................................................................................2-5 2.3.2 Pre-Processing of Channel Assignment.................................................................................................2-6 2.3.3 Channel Assignment Algorithms...........................................................................................................2-7 2.3.4 Processing After Channel Assignment...................................................................................................2-9 2.4 Implementation..............................................................................................................................................2-10 2.4.1 Configuring Channel Assignment Algorithm Parameters...................................................................2-10 2.4.2 Configuring Call Control Parameters...................................................................................................2-14 2.4.3 Examples: Configuring Channel Management....................................................................................2-16 2.5 Maintenance Information..............................................................................................................................2-18 2.6 References.....................................................................................................................................................2-25

3 Combined BTS Cabinets..........................................................................................................3-13.1 Overview.........................................................................................................................................................3-2 3.2 Availability......................................................................................................................................................3-3 3.3 Technical Description.....................................................................................................................................3-4 3.3.1 Combined Cabinets and Cabinet Groups of the BTS3012.....................................................................3-4 3.3.2 Combined Cabinets and Cabinet Groups of the BTS3006C..................................................................3-6 3.3.3 Hybrid Cabinet Groups of the BTS3012 and the BTS3X......................................................................3-8 3.4 Capabilities......................................................................................................................................................3-9 3.5 Implementation................................................................................................................................................3-9 3.5.1 Installing the Hardware of Combined BTS Cabinets.............................................................................3-9 3.5.2 Configuring Combined BTS Cabinets.................................................................................................3-22 3.6 Maintenance Information..............................................................................................................................3-38 3.7 References.....................................................................................................................................................3-39

4 Flow Control................................................................................................................................4-14.1 Overview.........................................................................................................................................................4-2 4.2 Availability......................................................................................................................................................4-2 4.3 Impact..............................................................................................................................................................4-4 Issue 02 (2008-06-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd i

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4.4 Technical Description.....................................................................................................................................4-4 4.4.1 Flow Control Measures..........................................................................................................................4-4 4.4.2 Flow Control Algorithms.......................................................................................................................4-5 4.5 Implementation..............................................................................................................................................4-21 4.5.1 Configuring Flow Control....................................................................................................................4-21 4.6 Maintenance Information..............................................................................................................................4-23 4.7 References.....................................................................................................................................................4-24

5 Multiband Network...................................................................................................................5-15.1 Overview.........................................................................................................................................................5-2 5.2 Availability......................................................................................................................................................5-3 5.3 Technical Description.....................................................................................................................................5-4 5.3.1 Mapping Between ARFCN and Frequency...........................................................................................5-5 5.3.2 Frequency Assignment for TRXs...........................................................................................................5-6 5.3.3 Multiband Channel Assignment.............................................................................................................5-7 5.3.4 Frequency Band Features.......................................................................................................................5-8 5.3.5 Multiband Network Topology..............................................................................................................5-10 5.3.6 Technical Principles.............................................................................................................................5-12 5.3.7 Traffic Guiding Strategy......................................................................................................................5-17 5.3.8 Enhanced Dual-Band Network.............................................................................................................5-18 5.4 Implementation..............................................................................................................................................5-19 5.4.1 Configuring the Multiband Network....................................................................................................5-20 5.4.2 Verifying the Multiband Network........................................................................................................5-25 5.4.3 Deactivating the Multiband Network...................................................................................................5-25 5.4.4 Configuring the Enhanced Dual-Band Network..................................................................................5-26 5.5 Maintenance Information..............................................................................................................................5-28 5.6 References.....................................................................................................................................................5-31

6 Power Control.............................................................................................................................6-16.1 Overview.........................................................................................................................................................6-2 6.2 Availability......................................................................................................................................................6-3 6.3 Technical Description.....................................................................................................................................6-4 6.3.1 Classification..........................................................................................................................................6-4 6.3.2 Procedure for Power Control..................................................................................................................6-6 6.3.3 Huawei II Power Control Algorithm......................................................................................................6-7 6.3.4 Huawei III Power Control Algorithm..................................................................................................6-13 6.4 Capabilities....................................................................................................................................................6-16 6.5 Implementation..............................................................................................................................................6-16 6.5.1 Activating Power Control.....................................................................................................................6-16 6.5.2 Configuring Power Control..................................................................................................................6-18 6.6 Maintenance Information..............................................................................................................................6-21 6.7 References.....................................................................................................................................................6-23

7 Handover......................................................................................................................................7-1ii Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd Issue 02 (2008-06-30)


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7.1 Overview.........................................................................................................................................................7-2 7.2 Availability......................................................................................................................................................7-4 7.3 Technical Description.....................................................................................................................................7-5 7.3.1 Handover Preprocessing.........................................................................................................................7-6 7.3.2 Handover Decision Algorithm.............................................................................................................7-11 7.4 Implementation..............................................................................................................................................7-27 7.4.1 Configuring the Handover....................................................................................................................7-27 7.4.2 Configuring Power Boost Before Handover........................................................................................7-37 7.5 Maintenance Information..............................................................................................................................7-38 7.6 References.....................................................................................................................................................7-65

8 2G/3G Interoperability..............................................................................................................8-18.1 Overview.........................................................................................................................................................8-2 8.2 Availability......................................................................................................................................................8-4 8.3 Technical Description.....................................................................................................................................8-5 8.3.1 System Messages Involved in Cell Reselection.....................................................................................8-5 8.3.2 Inter-RAT Measurement in Cell Reselection.........................................................................................8-6 8.3.3 Better 3G Cell Handover........................................................................................................................8-7 8.3.4 2G/3G Inter-RAT Cell Reselection........................................................................................................8-7 8.3.5 Types of 2G/3G Inter-RAT Handovers..................................................................................................8-9 8.3.6 2G/3G Inter-RAT Handover Procedure.................................................................................................8-9 8.3.7 Algorithms of 2G/3G Inter-RAT Handovers.......................................................................................8-11 8.4 Capabilities....................................................................................................................................................8-12 8.5 Implementation..............................................................................................................................................8-12 8.5.1 Configuring 2G/3G Interoperability.....................................................................................................8-12 8.5.2 Reconfiguring 2G/3G Interoperability.................................................................................................8-22 8.6 Maintenance Information..............................................................................................................................8-25 8.7 References.....................................................................................................................................................8-30

9 Message Tracing.........................................................................................................................9-19.1 Overview.........................................................................................................................................................9-2 9.2 Availability......................................................................................................................................................9-3 9.3 Impact..............................................................................................................................................................9-4 9.4 Technical Description.....................................................................................................................................9-5 9.4.1 Message Tracing Procedure...................................................................................................................9-5 9.4.2 Signaling Tracing...................................................................................................................................9-6 9.4.3 User Tracing...........................................................................................................................................9-7 9.5 Capabilities......................................................................................................................................................9-7 9.6 Implementation................................................................................................................................................9-7 9.6.1 Configuring Message Tracing................................................................................................................9-8 9.7 Maintenance Information..............................................................................................................................9-29 9.8 References.....................................................................................................................................................9-30

10 EFR............................................................................................................................................10-1Issue 02 (2008-06-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd iii

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10.1 Overview.....................................................................................................................................................10-2 10.2 Availability..................................................................................................................................................10-2 10.3 Technical Description.................................................................................................................................10-3 10.3.1 EFR Call Establishment Procedure....................................................................................................10-3 10.3.2 EFR Call Signaling Procedure...........................................................................................................10-4 10.4 Implementation............................................................................................................................................10-5 10.4.1 Configuring EFR................................................................................................................................10-6 10.5 Maintenance Information............................................................................................................................10-7 10.6 References...................................................................................................................................................10-8

11 AMR..........................................................................................................................................11-111.1 Overview.....................................................................................................................................................11-2 11.2 Availability..................................................................................................................................................11-3 11.3 Technical Description.................................................................................................................................11-5 11.3.1 AMR Call...........................................................................................................................................11-6 11.3.2 AMR Voice Rate Adjustment............................................................................................................11-9 11.3.3 Algorithm for AMR Intra-Cell Handover Between AMR Full-Rate and AMR Half-Rate.............11-12 11.3.4 AMR Power Control........................................................................................................................11-14 11.3.5 AMR Channel Assignment..............................................................................................................11-15 11.3.6 Impact on KPI..................................................................................................................................11-16 11.4 Capabilities................................................................................................................................................11-17 11.5 Implementation..........................................................................................................................................11-17 11.5.1 Suggestions on AMR Configuration................................................................................................11-17 11.5.2 Configuring AMR............................................................................................................................11-18 11.5.3 Verifying AMR................................................................................................................................11-27 11.5.4 Disabling AMR................................................................................................................................11-29 11.6 Maintenance Information..........................................................................................................................11-32 11.7 References.................................................................................................................................................11-40

12 Half-Rate Service....................................................................................................................12-112.1 Overview.....................................................................................................................................................12-2 12.2 Availability..................................................................................................................................................12-3 12.3 Impact..........................................................................................................................................................12-4 12.4 Technical Description.................................................................................................................................12-5 12.4.1 Channel Rate Assignment Strategies.................................................................................................12-6 12.4.2 Rate Adjustment Algorithms..............................................................................................................12-7 12.4.3 Priority-Based Resource Reservation...............................................................................................12-16 12.4.4 Estimation of the Number TCHFs and TCHHs in a Cell.................................................................12-16 12.5 Capabilities................................................................................................................................................12-18 12.6 Implementation..........................................................................................................................................12-18 12.6.1 Suggestions for Configuring the Half-Rate Service.........................................................................12-18 12.6.2 Configuring the Half-Rate Service...................................................................................................12-27 12.6.3 Verifying the Half-Rate Service.......................................................................................................12-32 12.6.4 Enabling the Function of Reserving Priority Resources..................................................................12-36 iv Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd Issue 02 (2008-06-30)


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12.6.5 Disabling the Half-Rate Service.......................................................................................................12-38 12.7 Maintenance Information..........................................................................................................................12-39 12.8 References.................................................................................................................................................12-41

13 Automatic Level Control.......................................................................................................13-113.1 Overview.....................................................................................................................................................13-2 13.2 Availability..................................................................................................................................................13-3 13.3 Technical Description.................................................................................................................................13-3 13.4 Capabilities..................................................................................................................................................13-4 13.5 Implementation............................................................................................................................................13-4 13.5.1 Configuring ALC...............................................................................................................................13-4 13.6 Maintenance Information............................................................................................................................13-6 13.7 References...................................................................................................................................................13-6

14 Acoustic Echo Cancellation..................................................................................................14-114.1 Overview.....................................................................................................................................................14-2 14.2 Availability..................................................................................................................................................14-2 14.3 Technical Description.................................................................................................................................14-3 14.4 Implementation............................................................................................................................................14-4 14.4.1 Configuring Acoustic Echo Cancellation...........................................................................................14-4 14.5 Maintenance Information............................................................................................................................14-5 14.6 References...................................................................................................................................................14-5

15 Cell Broadcast.........................................................................................................................15-115.1 Overview.....................................................................................................................................................15-2 15.2 Availability..................................................................................................................................................15-2 15.3 Technical Description.................................................................................................................................15-4 15.3.1 Cell Broadcast System.......................................................................................................................15-4 15.3.2 Simplified Cell Broadcast System......................................................................................................15-6 15.4 Implementation............................................................................................................................................15-7 15.4.1 Configuring Cell Broadcast................................................................................................................15-7 15.4.2 Configuring Simplified Cell Broadcast............................................................................................15-13 15.5 Maintenance Information..........................................................................................................................15-19 15.6 References.................................................................................................................................................15-21

16 Ciphering.................................................................................................................................16-116.1 Overview.....................................................................................................................................................16-2 16.2 Availability..................................................................................................................................................16-3 16.3 Impact..........................................................................................................................................................16-5 16.4 Technical Description.................................................................................................................................16-5 16.4.1 Kc and Its Generation.........................................................................................................................16-5 16.4.2 A5 Ciphering Algorithm....................................................................................................................16-6 16.4.3 Selection of Ciphering Algorithms....................................................................................................16-7 16.4.4 Signaling Ciphering Procedure..........................................................................................................16-8 16.5 Capabilities..................................................................................................................................................16-9 Issue 02 (2008-06-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd v

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16.6 Implementation............................................................................................................................................16-9 16.6.1 Configuring Ciphering.......................................................................................................................16-9 16.6.2 Reconfiguring Ciphering..................................................................................................................16-12 16.6.3 Disabling Ciphering.........................................................................................................................16-13 16.7 Maintenance Information..........................................................................................................................16-15 16.8 References.................................................................................................................................................16-15

17 Frequency Hopping...............................................................................................................17-117.1 Overview.....................................................................................................................................................17-2 17.2 Availability..................................................................................................................................................17-2 17.3 Impact..........................................................................................................................................................17-4 17.4 Technical Description.................................................................................................................................17-4 17.4.1 Principle of Frequency Hopping........................................................................................................17-4 17.4.2 Category of Frequency Hopping........................................................................................................17-6 17.4.3 Frequency Hopping Algorithms.........................................................................................................17-7 17.5 Capabilities..................................................................................................................................................17-9 17.6 Implementation............................................................................................................................................17-9 17.6.1 Changing None FH to RF FH..........................................................................................................17-10 17.6.2 Changing None FH to Baseband FH................................................................................................17-18 17.6.3 Changing RF FH to Baseband FH....................................................................................................17-25 17.6.4 Changing Baseband FH to RF FH....................................................................................................17-34 17.6.5 Changing RF FH to None FH..........................................................................................................17-43 17.6.6 Changing Baseband FH to None FH................................................................................................17-51 17.7 Maintenance Information..........................................................................................................................17-57 17.8 References.................................................................................................................................................17-57

18 eMLPP......................................................................................................................................18-118.1 Overview.....................................................................................................................................................18-2 18.2 Availability..................................................................................................................................................18-3 18.3 Impact..........................................................................................................................................................18-4 18.4 Technical Description.................................................................................................................................18-5 18.4.1 A Interface Parameters Involved in eMLPP.......................................................................................18-5 18.4.2 Call Establishment Procedure............................................................................................................18-6 18.5 Capabilities..................................................................................................................................................18-7 18.6 Implementation............................................................................................................................................18-7 18.6.1 Configuring eMLPP...........................................................................................................................18-7 18.6.2 Verifying eMLPP.............................................................................................................................18-10 18.6.3 Disabling eMLPP.............................................................................................................................18-12 18.7 Maintenance Information..........................................................................................................................18-15 18.8 References.................................................................................................................................................18-16

19 GPRS.........................................................................................................................................19-119.1 Overview.....................................................................................................................................................19-2 19.2 Availability..................................................................................................................................................19-4 vi Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd Issue 02 (2008-06-30)


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19.3 Impact..........................................................................................................................................................19-5 19.4 Technical Description.................................................................................................................................19-6 19.4.1 GPRS Networking..............................................................................................................................19-7 19.4.2 MAC Mode........................................................................................................................................19-9 19.4.3 RLC Mode..........................................................................................................................................19-9 19.4.4 Network Operation Mode...................................................................................................................19-9 19.4.5 Quality of Service.............................................................................................................................19-10 19.4.6 TBF Assignment..............................................................................................................................19-14 19.4.7 GPRS/GSM Paging Function...........................................................................................................19-15 19.4.8 GPRS Timing Advance....................................................................................................................19-16 19.4.9 Flow Control....................................................................................................................................19-17 19.4.10 Dynamic Conversion Between TCH and PDCH...........................................................................19-17 19.4.11 Packet Access.................................................................................................................................19-18 19.4.12 Packet System Information............................................................................................................19-19 19.4.13 Measurement Reports.....................................................................................................................19-19 19.4.14 Performance Management..............................................................................................................19-19 19.4.15 Power Control................................................................................................................................19-19 19.4.16 Coding Schemes.............................................................................................................................19-20 19.4.17 Gb Interface....................................................................................................................................19-21 19.4.18 Pb Interface....................................................................................................................................19-24 19.5 Capabilities................................................................................................................................................19-29 19.6 Implementation..........................................................................................................................................19-30 19.6.1 Configuration Principles (with Built-in PCU).................................................................................19-30 19.6.2 Configuring GPRS (with Built-in PCU)..........................................................................................19-31 19.6.3 Verifying GPRS (with Built-in PCU)..............................................................................................19-37 19.6.4 Configuration Principles (with External PCU)................................................................................19-46 19.6.5 Configuring GPRS (with External PCU).........................................................................................19-46 19.6.6 Verifying GPRS (with External PCU).............................................................................................19-54 19.7 Maintenance Information..........................................................................................................................19-59 19.8 References.................................................................................................................................................19-74

20 EGPRS......................................................................................................................................20-120.1 Overview.....................................................................................................................................................20-2 20.2 Availability..................................................................................................................................................20-3 20.3 Impact..........................................................................................................................................................20-4 20.4 Technical Description.................................................................................................................................20-4 20.4.1 8PSK Modulation Mode.....................................................................................................................20-5 20.4.2 EGPRS Transmit Power.....................................................................................................................20-6 20.4.3 MCS-1 to MCS-9 Coding Schemes...................................................................................................20-6 20.4.4 Link Quality Control..........................................................................................................................20-8 20.4.5 Types of Preferred EGPRS Channels.................................................................................................20-8 20.4.6 CCCH 11Bit EGPRS Access.............................................................................................................20-9 20.4.7 Assignment of Idle Timeslots............................................................................................................20-9 Issue 02 (2008-06-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd vii

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20.5 Capabilities................................................................................................................................................20-10 20.6 Implementation..........................................................................................................................................20-11 20.6.1 Configuring EGPRS (with Built-in PCU)........................................................................................20-11 20.6.2 Configuring EGPRS (with External PCU).......................................................................................20-14 20.7 Maintenance Information..........................................................................................................................20-17 20.8 References.................................................................................................................................................20-27

21 Co-BCCH Cell.........................................................................................................................21-121.1 Overview.....................................................................................................................................................21-2 21.2 Availability..................................................................................................................................................21-4 21.3 Impact..........................................................................................................................................................21-5 21.4 Technical Description.................................................................................................................................21-6 21.4.1 GSM900/DSC1800 Co-BCCH Cell Channel Assignment................................................................21-6 21.4.2 GSM900/DCS1800 Co-BCCH Cell Handover..................................................................................21-7 21.5 Capabilities..................................................................................................................................................21-8 21.6 Implementation............................................................................................................................................21-9 21.6.1 Configuration Principles....................................................................................................................21-9 21.6.2 Preparations for the Configuration...................................................................................................21-10 21.6.3 Risk Analysis of the Configuration Scenarios.................................................................................21-11 21.6.4 Configuring the Co-BCCH Cell.......................................................................................................21-16 21.6.5 Deactivating the Co-BCCH Cell......................................................................................................21-23 21.7 Maintenance Information..........................................................................................................................21-24 21.8 References.................................................................................................................................................21-27

22 Satellite Transmission...........................................................................................................22-122.1 Overview.....................................................................................................................................................22-2 22.2 Availability..................................................................................................................................................22-2 22.3 Impact..........................................................................................................................................................22-4 22.4 Technical Description.................................................................................................................................22-4 22.4.1 Network Topologies of Satellite Transmission..................................................................................22-4 22.4.2 Satellite Transmission on the Abis Interface......................................................................................22-5 22.4.3 Satellite Transmission on the Pb Interface.........................................................................................22-6 22.4.4 Satellite Transmission on the Gb Interface........................................................................................22-6 22.5 Implementation............................................................................................................................................22-7 22.5.1 Configuring Satellite Transmission on the Ater Interface..................................................................22-7 22.5.2 Configuring Satellite Transmission on the A Interface....................................................................22-10 22.5.3 Configuring Satellite Transmission on the Abis Interface...............................................................22-13 22.5.4 Configuring Satellite Transmission on the Pb Interface..................................................................22-18 22.5.5 Configuring Satellite Transmission on the Gb Interface..................................................................22-19 22.6 Maintenance Information..........................................................................................................................22-20 22.7 References.................................................................................................................................................22-20

23 TRX Cooperation....................................................................................................................23-123.1 Overview.....................................................................................................................................................23-2 viii Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd Issue 02 (2008-06-30)


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23.2 Availability..................................................................................................................................................23-3 23.3 Impact..........................................................................................................................................................23-4 23.4 Technical Description.................................................................................................................................23-5 23.4.1 BCCH TRX Cooperation...................................................................................................................23-5 23.4.2 Description of the Baseband FH TRX Cooperation...........................................................................23-7 23.4.3 TRX Cooperation Algorithm.............................................................................................................23-9 23.5 Implementation..........................................................................................................................................23-13 23.5.1 Configuring TRX Cooperation.........................................................................................................23-13 23.6 Maintenance Information..........................................................................................................................23-15 23.7 References.................................................................................................................................................23-16

24 Cell Frequency Scan..............................................................................................................24-124.1 Overview.....................................................................................................................................................24-2 24.2 Availability..................................................................................................................................................24-2 24.3 Impact..........................................................................................................................................................24-3 24.4 Technical Description.................................................................................................................................24-4 24.5 Capabilities..................................................................................................................................................24-4 24.6 Implementation............................................................................................................................................24-4 24.6.1 Configuring Cell Frequency Scan......................................................................................................24-5 24.7 Maintenance Information............................................................................................................................24-5 24.8 References...................................................................................................................................................24-6

25 High-Speed Signaling...........................................................................................................25-125.1 Overview.....................................................................................................................................................25-2 25.2 Availability..................................................................................................................................................25-3 25.3 Impact..........................................................................................................................................................25-3 25.4 Technical Description.................................................................................................................................25-4 25.4.1 Implementation...................................................................................................................................25-4 25.4.2 Comparison Between 2 Mbit/s Signaling Link and 64 kbit/s Signaling Link...................................25-6 25.5 Capabilities..................................................................................................................................................25-8 25.6 Implementation............................................................................................................................................25-8 25.6.1 Configuring High-Speed Signaling Links..........................................................................................25-8 25.6.2 Verifying High-Speed Signaling Links............................................................................................25-11 25.6.3 Disabling High-Speed Signaling links.............................................................................................25-12 25.7 Maintenance Information..........................................................................................................................25-13 25.8 References.................................................................................................................................................25-15

26 Local Multiple Signaling Point...........................................................................................26-126.1 Overview.....................................................................................................................................................26-2 26.2 Availability..................................................................................................................................................26-3 26.3 Impact..........................................................................................................................................................26-3 26.4 Technical Description.................................................................................................................................26-4 26.5 Capabilities..................................................................................................................................................26-5 26.6 Implementation............................................................................................................................................26-6 Issue 02 (2008-06-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd ix

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HUAWEI BSC6000 Base Station Subsystem BSS Feature Description 26.6.1 Configuring Local Multiple Signaling Point......................................................................................26-6

26.7 Maintenance Information............................................................................................................................26-9 26.8 References.................................................................................................................................................26-10

27 Semipermanent Link.............................................................................................................27-127.1 Overview.....................................................................................................................................................27-2 27.2 Availability..................................................................................................................................................27-2 27.3 Technical Description.................................................................................................................................27-3 27.3.1 Connections of Semipermanent Link.................................................................................................27-4 27.3.2 Implementation of Semipermanent Link............................................................................................27-5 27.4 Capabilities..................................................................................................................................................27-6 27.5 Implementation............................................................................................................................................27-6 27.5.1 Configuring a Semipermanent Link...................................................................................................27-6 27.5.2 Configuring a Monitoring Timeslot...................................................................................................27-8 27.5.3 Verifying a Semipermanent Link.......................................................................................................27-9 27.6 Maintenance Information..........................................................................................................................27-11 27.7 References.................................................................................................................................................27-11

28 Discontinuous Transmission and Discontinuous Reception........................................28-128.1 Overview.....................................................................................................................................................28-2 28.2 Availability..................................................................................................................................................28-2 28.3 Technical Description.................................................................................................................................28-3 28.3.1 DTX....................................................................................................................................................28-4 28.3.2 DRX...................................................................................................................................................28-5 28.4 Capabilities..................................................................................................................................................28-6 28.5 Implementation............................................................................................................................................28-6 28.5.1 Configuring DTX...............................................................................................................................28-6 28.5.2 Configuring DRX...............................................................................................................................28-9 28.6 Maintenance Information..........................................................................................................................28-10 28.7 References.................................................................................................................................................28-11

29 Location Service......................................................................................................................29-129.1 Overview.....................................................................................................................................................29-2 29.2 Availability..................................................................................................................................................29-2 29.3 Technical Description.................................................................................................................................29-3 29.3.1 Concepts.............................................................................................................................................29-3 29.3.2 Location Service Processing Procedure.............................................................................................29-4 29.3.3 Location Estimate...............................................................................................................................29-4 29.3.4 Message Format.................................................................................................................................29-8 29.4 Capabilities..................................................................................................................................................29-9 29.5 Implementation............................................................................................................................................29-9 29.5.1 Configuring Location Service..........................................................................................................29-10 29.5.2 Configuring Simple Location Service..............................................................................................29-13 29.6 Maintenance Information..........................................................................................................................29-15 x Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd Issue 02 (2008-06-30)


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29.7 References.................................................................................................................................................29-15

30 TFO............................................................................................................................................30-130.1 Overview.....................................................................................................................................................30-2 30.2 Availability..................................................................................................................................................30-3 30.3 Impact..........................................................................................................................................................30-4 30.4 Technical Description.................................................................................................................................30-4 30.4.1 TFO Messages....................................................................................................................................30-5 30.4.2 TFO Frame.........................................................................................................................................30-5 30.4.3 TRAU Operating Process in TFO Mode............................................................................................30-6 30.4.4 Realization of TFO.............................................................................................................................30-7 30.5 Capabilities..................................................................................................................................................30-7 30.6 Implementation............................................................................................................................................30-7 30.6.1 Configuring TFO................................................................................................................................30-7 30.6.2 Verifying TFO..................................................................................................................................30-10 30.7 Maintenance Information..........................................................................................................................30-12 30.8 References.................................................................................................................................................30-13

31 PBT............................................................................................................................................31-131.1 Overview.....................................................................................................................................................31-2 31.2 Availability..................................................................................................................................................31-2 31.3 Impact..........................................................................................................................................................31-4 31.4 Technical Description.................................................................................................................................31-4 31.5 Capabilities..................................................................................................................................................31-7 31.6 Implementation............................................................................................................................................31-8 31.6.1 Configuring PBT................................................................................................................................31-8 31.6.2 Configuring Dynamic PBT..............................................................................................................31-11 31.7 Maintenance Information..........................................................................................................................31-15 31.8 References.................................................................................................................................................31-16

32 Transmit Diversity.................................................................................................................32-132.1 Overview.....................................................................................................................................................32-2 32.2 Availability..................................................................................................................................................32-2 32.3 Technical Description.................................................................................................................................32-4 32.4 Implementation............................................................................................................................................32-6 32.4.1 Cable Connections (Transmit Diversity)............................................................................................32-6 32.4.2 Configuring Transmit Diversity.......................................................................................................32-10 32.4.3 Configuring Dynamic Transmit Diversity.......................................................................................32-11 32.5 Maintenance Information..........................................................................................................................32-14 32.6 References.................................................................................................................................................32-15

33 Four-Way Receive Diversity................................................................................................33-133.1 Overview.....................................................................................................................................................33-2 33.2 Availability..................................................................................................................................................33-2 33.3 Technical Description.................................................................................................................................33-3 Issue 02 (2008-06-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd xi

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33.4 Capabilities..................................................................................................................................................33-5 33.5 Implementation............................................................................................................................................33-6 33.5.1 Installing Hardware (Four-Way Receive Diversity)..........................................................................33-6 33.5.2 Configuring Four-Way Receive Diversity.........................................................................................33-9 33.6 Maintenance Information..........................................................................................................................33-10 33.7 References.................................................................................................................................................33-10

34 SDCCH Dynamic Adjustment............................................................................................ 34-134.1 Overview.....................................................................................................................................................34-2 34.2 Availability..................................................................................................................................................34-2 34.3 Impact..........................................................................................................................................................34-3 34.4 Technical Description.................................................................................................................................34-4 34.4.1 SDCCH Dynamic Adjustment Procedure..........................................................................................34-4 34.4.2 SDCCH Dynamic Adjustment Decision............................................................................................34-5 34.4.3 SDCCH Dynamic Adjustment Algorithms........................................................................................34-9 34.4.4 SDCCH Switchback Decision..........................................................................................................34-12 34.4.5 SDCCH Switchback Procedure........................................................................................................34-14 34.5 Implementation..........................................................................................................................................34-15 34.5.1 Configuring SDCCH Dynamic Adjustment.....................................................................................34-15 34.6 Maintenance Information..........................................................................................................................34-17 34.7 References.................................................................................................................................................34-18

35 NACC........................................................................................................................................35-135.1 Overview.....................................................................................................................................................35-2 35.2 Availability..................................................................................................................................................35-2 35.3 Technical Description.................................................................................................................................35-4 35.4 Implementation............................................................................................................................................35-6 35.4.1 Configuring NACC............................................................................................................................35-6 35.5 Maintenance Information............................................................................................................................35-8 35.6 References...................................................................................................................................................35-8

36 NC2............................................................................................................................................36-136.1 Overview.....................................................................................................................................................36-2 36.2 Availability..................................................................................................................................................36-2 36.3 Technical Description.................................................................................................................................36-3 36.4 Implementation............................................................................................................................................36-5 36.4.1 Configuring NC2................................................................................................................................36-5 36.4.2 Configuring the External PCU...........................................................................................................36-7 36.5 Maintenance Information..........................................................................................................................36-11 36.6 References.................................................................................................................................................36-12

37 Streaming QoS........................................................................................................................37-137.1 Overview.....................................................................................................................................................37-2 37.2 Availability..................................................................................................................................................37-3 37.3 Impact..........................................................................................................................................................37-4 xii Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd Issue 02 (2008-06-30)


Contents

37.4 Technical Description.................................................................................................................................37-4 37.4.1 Establishment of PFC.........................................................................................................................37-5 37.4.2 Modification of PFC...........................................................................................................................37-6 37.4.3 Deletion of PFC..................................................................................................................................37-7 37.4.4 GBR-Supported Uplink TBF Establishment Procedure.....................................................................37-7 37.4.5 GBR-Supported Downlink TBF Establishment Procedure................................................................37-8 37.4.6 Resources Reallocation Due to Changes of Uplink and Downlink Codec Modes............................37-8 37.4.7 Resources Reallocation Due to Changes of PFC...............................................................................37-8 37.5 Implementation............................................................................................................................................37-9 37.5.1 Configuring Streaming QoS...............................................................................................................37-9 37.5.2 Verifying Streaming QoS.................................................................................................................37-11 37.6 Maintenance Information..........................................................................................................................37-12 37.7 References.................................................................................................................................................37-12

38 Packet Performance Improvement......................................................................................38-138.1 Overview.....................................................................................................................................................38-2 38.2 Availability..................................................................................................................................................38-3 38.3 Technical Description.................................................................................................................................38-5 38.3.1 EGPRS Access of 11-Bit Messages on the CCCH............................................................................38-5 38.3.2 Extended Uplink TBF........................................................................................................................38-6 38.3.3 Takeover of the Packet Immediate Assignment by the BTS..............................................................38-7 38.4 Capabilities..................................................................................................................................................38-8 38.5 Implementation............................................................................................................................................38-8 38.5.1 Configuring Packet Performance Improvement.................................................................................38-8 38.5.2 Verifying Packet Performance Improvement.....................................................................................38-9 38.6 Maintenance Information..........................................................................................................................38-10 38.7 References.................................................................................................................................................38-10

39 Flex Abis...................................................................................................................................39-139.1 Overview.....................................................................................................................................................39-2 39.2 Availability..................................................................................................................................................39-3 39.3 Impact..........................................................................................................................................................39-4 39.4 Technical Description.................................................................................................................................39-4 39.4.1 Abis Resources Load-Triggered Half-Rate Assignment Algorithm..................................................39-7 39.4.2 Abis Resources Preempted by the CS Services from the PS Services...............................................39-8 39.5 Implementation............................................................................................................................................39-8 39.5.1 Configuration Suggestions.................................................................................................................39-8 39.5.2 Configuring Flex Abis......................................................................................................................39-10 39.5.3 Configuring an Exclusive Timeslot..................................................................................................39-17 39.6 Maintenance Information..........................................................................................................................39-19 39.7 References.................................................................................................................................................39-21

40 MSC Pool.................................................................................................................................40-140.1 Overview.....................................................................................................................................................40-2 Issue 02 (2008-06-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd xiii

Contents


40.2 Availability..................................................................................................................................................40-3 40.3 Technical Description................................................................................................................................. 40-4 40.3.1 Typical Topology...............................................................................................................................40-5 40.3.2 TMSI Carrying NRI...........................................................................................................................40-6 40.3.3 Load Balancing Algorithm.................................................................................................................40-7 40.3.4 NAS Node Selection (TMSI).............................................................................................................40-8 40.3.5 NAS Node Selection (IMSI/IMEI).................................................................................................... 40-8 40.3.6 IMSI Paging Processing.....................................................................................................................40-8 40.3.7 Load Reassignment............................................................................................................................40-9 40.3.8 Message Processing on the A Interface............................................................................................40-10 40.4 Capabilities................................................................................................................................................40-11 40.5 Implementation..........................................................................................................................................40-11 40.5.1 Configuring MSC Pool (in A Interface over TDM Mode)..............................................................40-11 40.5.2 Configuring MSC Pool (in A Interface over IP Mode)....................................................................40-18 40.5.3 Verifying MSC Pool.........................................................................................................................40-26 40.6 Maintenance Information..........................................................................................................................40-27 40.7 References.................................................................................................................................................40-27

41 BTS Ring Topology................................................................................................................41-141.1 Overview.....................................................................................................................................................41-2 41.2 Availability..................................................................................................................................................41-3 41.3 Impact..........................................................................................................................................................41-5 41.4 Technical Description................................................................................................................................. 41-6 41.4.1 Automatic Switchover During Link Disconnection...........................................................................41-6 41.4.2 Manual Switchover During Link Disconnection............................................................................... 41-6 41.4.3 Types of BTS Ring Topology............................................................................................................41-7 41.4.4 BTS HDLC Ring Topology............................................................................................................... 41-8 41.5 Implementation............................................................................................................................................41-9 41.5.1 Recommended Configuration of BTS Ring Topology...................................................................... 41-9 41.5.2 Configuring BTS Ring Topology.....................................................................................................41-10 41.5.3 Changing Non-Ring Topology to Ring Topology.....................................................

bss feature description(v900r008c01_02)

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