3g ran capacity optimization.pdf
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3g ran capacity optimization.pdfTRANSCRIPT
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3G RAN CAPACITY OPTIMIZATION
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1. INTRODUCTION
1.1 SCOPE
1.2 HIGH LEVEL PROCESS
2. 3G RAN RESOURCES & BLOCKING .
2.1 RADIO INTERFACE
2.2 IUB INTERFACE
2.3 BTS HW
2.4 IU TRAFFIC .
2.5 RAS06 MAIN CAPACITY FEATURES . .
2.6 RU10/RU20 MAIN CAPACITY FEATURES . .
3. RADIO INTERFACE ANALYSIS .
3.1 PROACTIVE METHOD . .
3.1.1 DL Power .
3.1.2 UL Interference with HSUPA .
3.1.3 The number of Simultaneous HSDPA users per scheduler .
3.1.4 Paging Channel & other Common Channel (CCH) load
3.1.5 Channelisation Code Utilisation .
3.2 REACTIVE METHOD .
3.2.1 Setup Failures due to Admission Control .
3.2.2 Service Rejection Ratio in Uplink and Downlink
3.2.3 Low HSDPA throughput .
3.2.4 Channelisation Code Blocking .
3.2.5 Radio Bearer Downgrade and Release Due to Congestion .
3.3 OTHER RADIO ANALYSIS & OPTIMIZATION . .
3.3.1 SHO Optimization .
3.3.2 R99 Data Efficiency Analysis (DL) .
3.3.3 R99 Data Efficiency Analysis (UL) .
3.3.4 Parameter Optimization .
3.3.5 New feature Introduction .
3.4 NODE B CONFIGURATION . .
3.4.1 ULTRA BTS .
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4. IUB INTERFACE ANALYSIS . .
4.1 ATM BASED IUB MONITORING
4.2 PROACTIVE MEASUREMENTS .
4.2.1 ATM Traffic Load Measurements .
4.2.2 ATM Iub User Plane Resource Reservation .
4.2.3 Number of AAL2 Connections (CID) .
4.3 REACTIVE MEASUREMENTS
4.3.1 AAL2 Resource Reservation Success Rate
4.3.2 Dynamic Scheduling for NRT DCH and HSDPA with Path Selection
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4.3.3 Average Cell Drop Rate
4.3.4 RRC and RAB Failures due to Iub AAL2 Transport .
4.3.5 Alarms .
4.4 OTHER IUB ANALYSIS & OPTIMIZATION .
4.4.1 Tuning of SHA
4.4.2 AAL2 Channel Identifiers Blocking .
4.4.3 The effect of Iub configuration to the ATM iub monitoring .
4.5 IP BASED IUB MONITORING.
4.6 PROACTIVE MEASUREMENTS .
4.6.1 IP based route measurement in the RNC .
4.7 REACTIVE MEASUREMENTS .
4.7.1 IP CAC measurement in the RNC
4.7.2 Alarms
5. BTS HARDWARE ANALYSIS .
5.1 PROACTIVE METHOD . ..
5.1.1 Channel Element Usage
5.2 REACTIVE METHOD .
5.2.1 Setup Failure Due to lack of CE .
5.3 OTHER BTS HW ANALYSIS & OPTIMIZATION .
5.3.1 Activation of Features .
5.3.2 SHO (SCC) optimization .
5.4 BTS HW UPGRADE . .
5.4.1 Ultra WBTS .
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6. RNC CAPACITY ANALYSIS
6.1 RU10/RU20 RNC . .
6.1.1 AMR license .
6.1.2 Iu-PS Throughput license . .
6.2 RNC LOAD MONITORING METHODS
6.3 RNC AAL2 CONNECTIVITY
6.4 RNC IUB THROUGHPUT
6.4.1 Combine Actual Traffic Load Factor
6.4.2 DMCU Reservation Load Factor for PS Data
6.4.3 Iu-PS Throughput Measurement
6.4.4 Cell Throughput Measurement
6.5 RRC CONNECTIVITY CAPACITY .
6.6 RNC UNIT LOAD MEASUREMENT
6.7 DSP MEASUREMENTS IN RAS06 .
6.8 DSP MEASUREMENTS IN RU10/RU20 .
6.9 REACTIVE MONITORING .
7. IU-CS USER PLANE CAPACITY .
7.1 ATM BASED IU-CS CAC RESERVATION .
7.2 IP BASED IU-CS USER PLANE CAPACITY .
8. IU-PS USER PLANE CAPACITY .
8.1 IU-PS TRAFFIC FROM M530 MEASUREMENT
8.2 IP BASED IU-PS TRAFFIC .
9. IUR CAPACITY .
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