Refarming Project 2013_V1_to Share

Rollout and Re-farming U900

Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 1

© Nokia Siemens Networks 2012

Re-farming Planning process Request for re-farming Step1: 2G spectrum allocation to 3G Step2: 2G and 3G zone setup

Step3: 2G network analysis Step4: 2G network re-planning Step5: Project Implementation Step6: Prelaunch and Optimization Step7 :Reporting Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 2


If 2G network replanning results are not acceptable, then Step1 and/or Step2 can be repeated

Spectrum Carving



Spectrum Allocation (Sandwich Model) recommended for efficient frequency re-farming • Closest frequencies at both sides of the WCDMA carrier can be optimally utilized for GSM frequencies • Guard bands can be minimized with Flexi BTS 4.2 MHz filter and coordinated network deployment 4.2 MHz

Other operator’s band

WCDMA/HSPA

2.2 MHz 2.4 MHz 2.6 MHz = WCDMA/HSPA = Non-BCCH GSM, coordinated deployment = BCCH GSM, coordinated deployment = GSM, uncoordinated deployment Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 4


Other operator’s band

Spectrum Allocation (Sandwich Model) recommended for efficient frequency re-farming • Spectrum Carving scenario Guard band / Joker

G900 BCCH - TCH

G900 TCH

U900

U900 center freq.

GSM UMTS 900 GSM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 • GSM spectrum allocation strategy : • Ad-Hoc ( non group BCCH-TCH)



2.2 MHz 2.4 Mhz 2.6 Mhz

Zone Setup



Zone setup GSM900 (with U2100 zone), Buffer zone, GSM900 with U900 zone

• Core Zone - Limited GSM900 band area (re-farming area) - The limited GSM900 band is used together with 3G on U900 band. • Buffer zone - Buffer zone is having limited band for GSM900 (after re-farming) with UMTS on 2100 band. It is required to provide enough separation between the same frequencies of GSM900 (full band) and UMTS900 (co-channel IF) • Common Zone - Full GSM900 band area - The whole available 900 band is used for GSM, UMTS and U2100 band.

GSM Limited band + U900 4.2 MHz must be re-farmed and 2 Channels on the border should be used for non BCCH only



GSM (Limited band) + U900 4.2 MHz must be re-farmed and 4 Channels on the border should be used for non BCCH only

GSM (Whole band) + UMTS 2100

UMTS900 Interference Scenarios Interference Main Scenarios UMTS900 site GSM site cosite UMTS900 site (Coordinated Scenario) GSM site in Buffer Area (Uncoordinated Scenario with Adjacent Channels) GSM site in GSM Network Area (Uncoordinated Scenario Co-Channels)

UMTS900 Area Buffer Area GSM900 Network Area Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 8


Network Analysis



Network Analysis (Planning inputs and outputs) Inputs from current network :

• • • • •

Re-farming strategy (site coordination, UMTS 900 site list, planning area etc..) Configuration analysis (Capacity) Performance analysis Parameter/feature analysis Traffic analysis and Traffic forecast (traffic increase/decrease due to UMTS 900)

Outputs :

• • • • •

New configuration plan (max configuration on re-farmed band) New capacity plan (add 1800 sectors/move traffic to UMTS900/2100) New frequency plan (Optimizer)

New HOC&POC plan New feature implementations to maintain QoS of network Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012

10


Step by Step GSM capacity Analysis List cells in core and buffer

A

Calculate traffic to be off Loaded

No GSM cell > 3 TRXs

End yes

Any collocated DCS

Downgrade to 3 TRXs

No

yes

Is 3 TRXs enough to handle existing traffic

yes

End



Upgrade DCS TRX

No

A

End

New Collocated DCS

Capacity planning - example Traffic increase (forecast) Half rate ratio ave. # of TSLs used for (E)GPRS # of TCHs on BCCH / TRX # of TCHs on nonBCCH / TRX

# of required TSLs with FR and HR

# of required TSLs with GSM FR and HR and for ave. (E)GPRS traffic

# of required DCS TSLs - 1 TRXs on GSM

# of required DCS TRXs - 1 TRXs on GSM

or traffic volume needed to be reallocated to U900/U2100

# of required DCS TSLs - 2 TRXs for GSM

# of required DCS TRXs - 2 TRXs for GSM

or traffic volume needed to be reallocated to U900/U2100

UMTS2100_COLOCATED

2 TRXs/cell on GSM 25542 6232 15979

BH traffic forecast (Erl.)

1 TRX/cell on GSM 52740 9495 32654

BH traffic (Erl.)

Calculations based on inputs 53368 70872 79938

# of DCS TRXs

48516

# of GSM TRXs

BT200321 BT200461 BT200462 BT200463 BT200561 BT200562

Inputs on BTS level 14428 11869 2559

The same Effective Frequency Load is assumed after re-farming

# of TRXs

4533

Cell name

Sum:

10% 40% 2 6 7

1 2 2 2 3 3

1 2 2 2 2 2

0 0 0 0 1 1

0.64 9.98 10.59 1.86 10.37 5.52

0.71 10.98 11.65 2.05 11.40 6.07

3 15 16 5 16 10

5 17 18 7 18 12

-1 11 12 1 12 6

0 2 2 1 2 1

0.00 6.51 7.05 0.00 6.85 2.58

-7 5 6 -5 6 0

0 1 1 0 1 0

0.00 1.38 1.92 0.00 1.72 0.00

0 0 0 0 1 1

 Aim to ensure that excessive GSM 900 traffic (due to max configuration after refarming) will be planned to move either 1800 band or UMTS Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 12


Network re-planning



Why Network re-design Objectives : • To Modernize the network • Common standard • Expansion readiness • Feature readiness • Simplify network, easy to control. • High quality, secure, save • Nice esthetics



Re-design activities Massive site evaluation is takes time to evaluate the design manually. Using Automatic Cell Planning tool to evaluate the network NSN uses ACORN as ACP tool. ACP tools mainly supports for Network configuration & optimization services - outcome:

-

Heights Tilts (mechanical, electrical) Antenna Types Azimuth Power Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012

15


Automated Configuration & Optimization of Radio Networks

Frequency re-planning / GFP Implementation use Optimizer tool



Step by Step Optimizer (1)

Recommended Time frame A - B -Minimum 14 days -Maximum 20 days

A

Define Frequency Allocation

Analyze OSS measurement duration

Define cells in core and buffer

Measurement > 14 days ? Any co-BCCH and co BSIC problem ? yes

No

No

yes yes Retune co-BCCH and coBSIC

A

Neighbor optimization

OSS measurement

B Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 17


Step by Step Optimizer (2) C B Plan approved by Isat ?

Create Interference Matrix

No

yes Upload main KPI

Time frame B - C - Minimum 7 days

A

GFP implementation

Neighbor Optimization KPI Evaluation

Create Frequency Plan KPI achieve ?

No

Verify optimization result yes

C Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 18


END

A

Pre Launch and Optimization (Layering Strategy)



Optimization - Traffic steering GSM  DCS Objectives : Is to reduce interference on GSM 900 layer, due to limited GSM 900 spectrum after spectrum carve for UMTS900. Applying traffic steering strategy to offload GSM traffic into DCS, it reduces the usage of GSM spectrum. Parameter Control and performance monitoring must be check closely.



Optimization - Layering GSM - U900 – U2100 Objectives : The strategy is to use U900 sharing the traffic from U2100, where U2100 coverage and quality is poor. U900 is aiming for Deep Indoor Coverage and Cell border. U900: Cell Border and Deep Indoor Coverage (Coverage Layer)

U2100 : Access and Main Data Layer (Capacity Layer)



Multicarrier Layering Overview Cell Reselection Idle Mode, CELL_PCH, • URA_PCH •

Hierarchical Cell Structure (HCS) Measurement Power Offsets

3G System

Re-direction Transition to CELL_DCH

• •

Directed RRC Connection Setup Common Channel Layering

• • • •

HSPA Capability based Handover Load and Service based Handover Inter-Frequency Handover Inter-System Handover

UMTS 2100 (F1/F2)

Handover Within CELL_DCH

UMTS 900

UMTS 900

Intersystem Hand Over 2G System

• • •

Requirement to balance traffic between network layers While UMTS900 device penetration is relatively low then all UMTS900 devices should be pushed to UMTS900 layer Traffic management can be applied in both Idle and Connected Mode states Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012

22


GSM

DCS

Multicarrier Layering Strategic



Generic parameter



GSM 900 re-farming and UMTS 900, 2100 NSN Solution



Roll out, Modernization and Re-farming Project Scope (Implementation): 1. Rollout and Modernization     

2.

Swap / Modernization BTSs with Feeder less Swap Antennas (new triple bands antenna) and Aerial redesign (high, panning) TRX Upgrade – Downgrade ( GSM & DCS) New site (DCS) Implementation Band Pass Filter*

Re-farming 

3.

Spectrum re-arrangement (GFP with Optimizer)

WCDMA Integration 

U900 & U2100

* High Rejection for Co-site CDMA, Low Rejection Non Co-site CDMA. Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 26


Roll out, Modernization and Re-farming Project Scope (KPI Monitoring): 1. Rollout and Modernization     

2.

Swap / Modernization BTSs with Feeder less  KPI Maintain Swap Antennas (new triple bands antenna) and Aerial redesign (high, panning) TRX Upgrade – Downgrade ( GSM & DCS) New site (DCS)  KPI basic Implementation Band Pass Filter for Co-site CDMA and Non Co-site CDMA.

Re-farming 

3.

Spectrum re-arrangement (GFP with Optimizer)  KPI Maintain

WCDMA Integration 

4.

U900 & U2100  KPI basic

Cluster optimization :  

Scope : Under Core Zone, Buffer Zone, and Common Zone KPI Methodology and KPI baseline & target : TBD



Implementation process Site audit on refarming area

Zone setup (Core – Buffer)

NetAct Planner analysis

Antenna Optimization with ACP tool Amount of Antenna changes = SMALL

Maintain using current parameters (bcch, bsic, neighbor, sc, etc)

Final Plan Site release & BSS – RAN Parameter update

1 . Define mini cluster (for implementation strategy, performance monitoring) 2. Create Drive route



KPI Baseline taken

Project implementation Using mini Cluster Base

Reporting

Amount of Antenna changes = BiG

Run AFP on NetAct Planner for ARFCN, neighbor, etc

Implementation Validation, Performance Monitoring and Optimization

B

Implementation process B

Incase the mini cluster Performance experience severe degradation, then run optimizer tool

Spectrum Carving by Optimizer tool

Performance Monitoring and Fine Tuning


Continue Project Implementation for next mini Cluster

Spectrum Scanning 900 Mhz on CORE Zone

GSM TRX D/G

Spectrum Clean on refarming area

No

Yes

U900 Integration


U900 Spectrum Scanning on Buffer zone

Spectrum Overshooting

No

Yes Continue Optimization and Performance stabilization Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 29


Final Acceptance

Clustering Semarang area



Dept. / Author / Date

Clustering Semarang + Jogjakarta




Clustering Jogjakarta




Roll out, Modernization and Re-farming Project Activities: 1. Spectrum Allocation Plan for 2G 

A part of available GSM frequency band is reallocated to U900.

2. Zone area setup  

Core Zone : The limited GSM900 band is used together with 3G on U900 band. Buffer Zone : Having limited band of GSM900 after re-farming together with 3G on U2100 bands. It is required to provide enough separation between the same frequencies of GSM900 (full band) and UMTS900



Common Zone : Full 900 band used together

3. Site Audit  

TSSR report Update site database on Tools (NetAct Planner, NetAct Optimizer)

4. GSM + DCS +U2100 Analysis (Coverage, Capacity)    

ACP tool to evaluate the antenna optimization Comparison Coverage plot prediction (G900, G1800, U2100)  Identify coverage risk, and give solutions Check Radio resource, & Transport capacity dimensioning Ensure GSM 900 capacity dimensioning per site is 3/3/3


Ensure NO Live REPEATER / MCPA integrated at “CORE & Buffer Zone Area”


Roll out, Modernization and Re-farming 5. Site data plan and BSS Plan    

Final site configuration (BTS Capacity, aerial setting, etc) Final Site drawing Propose new sites incase existing site could not absorb the traffic BSS feature for Capacity and performance enhancement if available

6. Define mini clusters on Core zone, and Buffer Zone   

Mini cluster defined is for project controlling (integration, performance monitoring and KPI benchmark) Each cluster contain 10 – 15 sites (resources dependency) Define Drive Test route, and OSS KPI baseline time frame agreed between NSN – Indosat

7. KPI Performance Baseline For acceptance Cluster base is preference  

Mini cluster Drive test and OSS performance baseline report (mini cluster base) Drive test and KPI baseline report



Roll out, Modernization and Re-farming 8. Provide BSS - RAN data Parameter (PES)   

PES shall be deliver to Project team 5 days before implementation date. PES shall be complete and Correct before Integration date ,Incase any error during integration due to unproper parameter value, correction shall be made on Immediate basis. BSS - RAN parameter update (BCCH, SC, Handover..etc) U900 sites “must not on service”

9. Capacity expansions implementation (HW & SW)   

at this phase (NO PES for U900 send to project team)

Ensure BSS- RAN PES implemented as Plan Ensure the scope KPI basic for new DCS Update Network Performance reporting (main KPI, Quality statement, SSV, DT reporting)

10. Swap and replaced to new antenna system (triple bands with feeder less)     

Ensure Aerial Setting, RET Calibrated, Filter are implemented as plan, as well as radio parameter update. Ensure the scope activity on swap modernization (DT) Update Network Performance and Capacity Report (main KPI, Quality statement, SSV, DT reporting). NetAct Optimizer site Database Update Running NetAct Optimizer for new Frequency, SC allocation, if optimization is required. The process will be done when each cluster execution is completed.



Roll out, Modernization and Re-farming 11. Swap / Modernization + Upgrade BTS plus / Ultrasite   

Ensure PES implemented as Plan Ensure the scope activity on swap modernization (DT, KPIs) Update Network Performance reporting (main KPI, Quality statement, SSV, DT reporting)

12. New DCS implementation   

Ensure PES implemented as Plan Ensure the scope KPI basic for new DCS Update Network Performance reporting (main KPI, Quality statement, SSV, DT reporting)

13. Traffic steering Management (GSM  DCS)    

Containment on DCS as much as possible, obtain the cell performance with no degrading the KPI Urban area: drive the traffic into DCS band in idle and dedicated mode Suburban and rural area where: drive to GSM band in idle mode only DT is to ensure RX level and Quality

14. Performance and Capacity Monitoring : 

Main KPIs, Traffic (Voice and data), Capacity resources (Traffic and signaling)



Roll out, Modernization and Re-farming 15. Provide BSS data Parameter (PES) 

PES for Down Grading GSM 900 Capacity with detail HW Identification

16. Downgrading G900  

Ensure Capacity downgrading as plan Ensure quality and resource utilization

17. Network Performance stabilization  

Network Performance Monitoring and Fine tuning Define the KPI baseline

18. GFP (G900 + G1800) preparation use OPTIMIZER tool    

Optimizer Data Collection & measurement Post processing GFP plan review (sanity check, Netact Planner C/I, C/A coverage plot) Interference matrix GFP Proposal to Indosat to obtain the approval

19. Drive test (idle & dedicated for GSM only) before GFP Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 37


Roll out, Modernization and Re-farming 20. GSM 900 & GSM 1800 GFP (Optimizer)    

GFP Implementation (automatic by network or Manual)  TBD Ensure parameter implemented as plan DT verification (functionality test) Performance monitoring and parameters fine tuning

21. Drive test (idle & dedicated for GSM only) after GFP 22. Spectrum scanning 900 MHz (allocated for U900)     

Scan (GSM ARFCN) focus at CORE ZONE, by using Scanner box (SEEGULL) not Mobile Phone (UE) Scan report GSM per ARFCN in core zone with limit Level -155 dB (U900 Isolation)  Template TBD Analysis & Reporting Physical tuning if necessary Submit scanning Report to Indosat

23. Fine tuning cell by cell (parameter & Physical) 

HOC - POC parameter tuning optimization



Note: • Data for analysis and performance monitoring must be use from “Busy Hour Busy Day” • Any performance issue due to congestion or high utilization, implementation of capacity expansion is a must

Roll out, Modernization and Re-farming 24. RAN data Parameter (PES) 25. U900 on service    

Ensure parameter, feature implemented as plan Update Network Performance reporting (main KPI, Quality statement, SSV, DT reporting) Ensure the scope activity (DT, KPI basic, included Intersystem HO, Inter Freq HO) Ensure Load balance capacity among multiband technology (GSM 900 – DCS 1800 – UMTS 2100)

26. Spectrum scanning 900 MHz    

Scan UARFCN focus at BUFFER ZONE, by using Scanner box (SEEGULL) not Mobile Phone (UE) Scan report GSM per ARFCN in core zone with limit Level -155 dB (U900 Isolation)  Template TBD Analysis & Reporting Submit scanning Report to Indosat

27. Performance Monitoring:  

GSM 900 Interference band check U900 KPI basic (included Intersystem HO, Inter Freq HO)

28. Final KPI Acceptance Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 39


Note: • Data for analysis and performance monitoring must be use from “Busy Hour Busy Day” • Any performance issue due to congestion or high utilization, implementation of capacity expansion is a must

Pre Launch and Optimization Optimization Strategy and Process

Customer CustomerConfidential Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 40


Optimization Strategy Optimization Strategy

Accessibility Improvement

Traffic & Capacity Management

Signaling Analysis and Improvement



Transport Network Audit

Retain-ability Improvement

(E)GPRS/R99 / HSDPA Analysis and Improvement

Frequency Optimization

System Integrity Improvement

Coverage Assessment

Handover Optimization

Optimization Strategy

NETWORK AUDIT - Parameter & Neighbor audit - Site Configuration - Capacity audit

WORST PERFORMANCE CELL CBCCH & ANTENNA GRID ALLIGNMENT TRAFFIC MANAGEMENT

PARAMETER OPTIMIZATION TRANSPORT OPTIMIZATION CAPACITY OPTIMIZATION FEATURE OPTIMIZATION (E)GPRS, R99, HSDPA OPTIMIZATION AMR OPTIMIZATION

COVERAGE ASSESMENT & OPTIMIZATION HARDWARE FAULT MONITORING & ESCALATION STRATEGIC FREQUENCY PLANNING & OPTIMIZATION VIP CUSTOMER COMPLAINT HANDLING

2G & 3G RADIO NETWORK PERFORMANCE & OPTIMIZATION Customer Confidential Indosat 2012 / Version 2-0 / Re-farming Project 2012 42


KPI EVALUATION - ACCESSIBILITY Background

Accessibility Performance in Wireless Network is the Key Factor as Accessibility Performance is an indication of the Ability of the Network to serve it’s subscriber for all offered services. Accessibility is measured as the successful Signalling (RRC) Establishment and RAB Establishment.

Objective

By Delivering this activities :  Improve the Network Accessibility as per Our KPI Commitment  Detail Investigate of All Resources that impacting Network Accessibility to find the root cause of Congestion Issue.  Review the process and Methodology of Network Capacity Monitoring

Main Activities

 Regional RNC Accessibility Performance Review  Accessibility Performance Drops Distribution Analysis & Investigation  Accessibility Performance Drops Improvements and Resolution  Accessibility Performance Parameters Optimization



KPI EVALUATION - RETAINABILITY Background

Objective

By Delivering this activities :  Improve the Network Retain-ability Performance as per Our KPI Commitment  Detail Investigate of All Macro Areas that impacting to performance to find the root cause of Drop Call Issue.  Review the impact of current Network Strategy to the Retain-ability Performance.

Main Activities

 Regional BSC/RNC Accessibility Performance Review  Retainability Performance Drops Distribution Analysis & Investigation  Retainability Performance Drops Improvements and Resolution  Retainability Performance Parameters Optimization  Handover and Soft Handover performance analysis


Retaianability Performance is also the Key Factor as Retainability is the indication of the Network Ability to serve the user to retain the requested service to the desired duration. Reatainability is measured per Service or RAB (CS, PS, CS Voice, CS Video, PS Interactive, PS Streaming, PS R99 or PS HS)


KPI EVALUATION - MOBILITY Background

Another important aspect in Wireless Network Service is System Integrity Performance as This KPI is an indication of Quliaty Level of Offered Service. In This Activity, 3 Main KPI are used to measured the 3G Network Integrity Performance i.e. Soft Handover Success Rate Performance Inter Radio Access Technology Handover Success Rate and HSDPA Cell Throughput Performance.

Objective

By Delivering this activities :  Improve the Network Integrity Performance as per Our KPI Commitment  Detail Investigate of all the issue that impacting to Network Integrity Performance to find the root cause of Low Network Integrity Performance.  Review the impact of current Network Strategy to the Network Integrity Performance

Main Activities

 SHO Success Rate Improvement  IRAT Success Rate Improvement  HSDPA Cell Throughput Improvement



Pre Launch and Optimization (Network Statistic)



Network Statistics Network statistics is one of the tool to monitoring and that is the one of indicator from network performance. Deliverable shall be delivered to indosat representative as :  OSS Data Nokia Siemens Networks collect and ensure the availability of OSS data which is accessible via OMC. Provision of tools arranged in chapters Tool.  Daily Statistic Reports  Weekly Performance Reports  Monthly Executive Performance Report

 KPI Achievement At the end of each stage and project, Nokia Siemens Networks provides a complete and comprehensive Performance report in the form of Executive Summary Report and Technical Report. The report is part of the acceptance requirement.



KPI Acceptance KPI Acceptance Method The following methods are applied on acceptance process: Acceptance will be based on KPI Achievement  Week of KPI Achievement is one week of the last optimization stage week.  KPI Achievement week shall be agreed by Indosat and Nokia Siemens Networks.  KPI Achievement is measured by accumulate used counters of 1 week data (7x24 hours) from Monday    

to Sunday. The measurement data is based on hourly data. If any different data between Vendor and Indosat, the value will be verified using hourly data. KPI formula to be used in the calculation are based on KPI formula defined by Indosat Acceptance will be based on “Reward or Deduction” Scoring Systems. Nokia Siemens Networks shall submit a complete and comprehensive acceptance report as defined in Reporting chapter before the acceptance. Indosat will issue the acceptance certificate if the target score is achieved.



Pre Launch and Optimization (Drive Test)



Drive Test Drive Test is performed for the following circumstance:  Verification Drive Test due to Project implementation activities  Verification Drive Test after the global parameter change  Verification Drive Test for RF troubleshooting The following rules apply in performing Drive Test:  The Drive Test data shall be recorded  All problems occured during drive test shall be logged for further analysis  The scope of drive test is limited for outdoor site  The drive test route shall be proposed to Indosat prior the execution



Reporting



Project Progress & reporting RF Planning (AOP):  Weekly progress AOP  Weekly progress KPI Basic (PLO)  Monthly progress AOP

Optimization:  Weekly Report (activity & KPI performance)  Monthly Report (activity & KPI performance)  Quarterly Report (KPI Achievement & ATP)



Activities RF Planning (AOP):  Detail coverage & capacity planning  Parameter planning  Abis Mapping  Review of RNP Criteria (Swap/modernization)  RNP Translation (Swap/modernization)  Databuild creation for RF (PES, NDB)



Refarming Project 2013_V1_to Share

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