Refarming Project 2013_V1_to Share

8/19/2019 Refarming Project 2013_V1_to Share

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1 © Nokia Siemens Networks 2012

Customer Confidential

Indosat 2012 / Version 2-0 / Re-farming Project 2012

Rollout and Re-farming U900


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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

If 2G netwplanning rnot accepStep1 andcan be re

Step5: Project Implementation

Step6: Prelaunch andOptimization

Step7 :Reporting


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Spectrum Carving


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Spectrum Allocation (Sandwich Model)recommended for efficient frequency re-farming

• Closest frequencies at both sides of the WCDMA carrier can be optimally utilizfrequencies

• Guard bands can be minimized with Flexi BTS 4.2 MHz filter and coordinadeployment

= WCDMA/HSPA

= Non-BCCH GSM, coordinated deployment

= BCCH GSM, coordinated deployment

= GSM, uncoordinated deployment

WCDMA/HSPA

4.2 MHz

2.2 MHz

2.4 MHz

Other operator’s band

2.6 MHz

Other o


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• Spectrum Carving scenario

• GSM spectrum allocation strategy :

• Ad-Hoc ( non group BCCH-TCH)

2.2 MH

2.4 M

2.6 M

Spectrum Allocation (Sandwich Model)recommended for efficient frequency re-farming

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 4

GSM UMTS 900

Guard band / Joker G900 BCCH - TCH G900 TCH U900 U900 center freq.





Zone Setup





Zone setupGSM900 (with U2100 zone), Buffer zone, GSM900 with U900 zone

• Core Zone - Limited GSM900 band area (re-farming area) - The limited GSM9together with 3G on U900 band.

• Buffer zone - Buffer zone is having limited band for GSM900 (after re-farming2100 band. It is required to provide enough separation between the same freqGSM900 (full band) and UMTS900 (co-channel IF)

• Common Zone - Full GSM900 band area - The whole available 900 band is uUMTS and U2100 band.

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 Limited band + U900

4.2 MHz must be re-farmed

and 2 Channels on the

border should be used for

non BCCH only

GSM (Whole

UMTS 2100


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UMTS900 Interference Scenarios Interference Main Scenarios

GSM site cosite UMTS900 site (CoordinatedScenario)

UMTS900 site

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


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Network Analysis


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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


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Step by Step GSM capacity Analysis

List cells in core and

buffer

GSM cell >3 TRXs

Downgrade to 3 TRXs

Is 3 TRXs enough tohandle existing

traffic

Calculate traffic to be off

Loaded

yes

No

A

Any

collocated

DCS

Upgrade DCS TRX New Collo

End

End

yes

No

yes

No

End

A


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Capacity planning - example

Aim to ensure that excessive GSM 900 traffic (due to max configuration after refarming) will be p1800 band or UMTS

Traffic increase (forecast) 10% The same Effective Frequency Load is assumed after re-farming

Half rate ratio 40%

ave. # of TSLs used for (E)GPRS 2

# of TCHs on BCCH / TRX 6

# of TCHs on nonBCCH / TRX 7

Sum: 4533 14428 11869 2559 48516 53368 70872 79938 52740 9495 32654 25

C e l l n a m e

# o f T R X s

# o f G S M T

R X s

# o f D C S T R X s

B H

t r a f f i c ( E r l . )

B H

t r a f f i c f o r e c a s t ( E r l . )

# o f r e q u i r e d T S L s w i t h F R

a n d H R

# o f r e q u i r e d T S L s w i t h G S M F

R

a n d H R

a n d f o r a v e .

( E ) G P R S t r a f f i c

# o f r e q u i r e d D C S T S L s - 1 T R X s o n

G S M

# o f r e q u i r e d D C S T R X s - 1 T R X s o n

G S M

o r t r a f f i c v o l u m e n e e d e d t o b e r e a l l o c a t e d

t o U 9 0 0 / U 2 1 0 0

# o f r e q u i r e d D C S T S L s 2 T R X s f o r

BT200321 1 1 0 0.64 0.71 3 5 -1 0 0.00BT200461 2 2 0 9.98 10.98 15 17 11 2 6.51

BT200462 2 2 0 10.59 11.65 16 18 12 2 7.05

BT200463 2 2 0 1.86 2.05 5 7 1 1 0.00

BT200561 3 2 1 10.37 11.40 16 18 12 2 6.85

BT200562 3 2 1 5.52 6.07 10 12 6 1 2.58

Inputs on BTS level 1 TRX/cell on GSMCalculations based on inputs


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Network re-planning


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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


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Re-design activities

Massive site evaluation is takes time to evaluate thedesign manually.

Using Automatic Cell Planning tool to evaluate thenetwork

NSN uses ACORN as ACP tool.

ACP tools mainly supports for Network configuration &optimization services - outcome:

- Heights- Tilts (mechanical, electrical)

- Antenna Types

- Azimuth

- Power

Automated Configuration & Optimization of Radio Net


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Frequency re-planning / GFP Implementause Optimizer tool


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Step by Step Optimizer (1)

Define cells in core

and buffer

A

Measurement > 14

days ?

Neighbor optimization

yes

No Any co-BCCH and

co BSIC problem ?

Define Frequency

Allocation

Retune co-BCCH and co-

BSIC

Analyze OSS measurementduration

OSS

yes

A

yes

Recom

frame

-Minim

-Maxim

S b S O i i (2)


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B

Create Interference Matrix

C

Upload main KPI

Neighbor Optimization

Create Frequency Plan

Verify optimization result

GFP implementation

KPI Evaluation

KPI achieve ?

END

yes

No

Step by Step Optimizer (2)

Plan approved by

Isat ?

C

No

yes

Time frame B - C

- Minimum 7 days


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Pre Launch and Optimization(Layering Strategy)

O ti i ti T ffi t i GSM DCS


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Optimization - Traffic steering GSM DCS

Objectives :

Is to reduce interference on GSM 900 layer, due to limited GSM 900 spectrum acarve for UMTS900.

Applying traffic steering strategy to offload GSM traffic into DCS, it reduces the spectrum.

Parameter Control and performance monitoring must be check closely.

O ti i ti L i GSM U900 U2100


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Optimization - Layering GSM - U900 – U2100

Objectives :

The strategy is to use U900 sharing the traffic from U2100, where U2100 coverapoor. 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)

M lti i L i O i


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Multicarrier Layering Overview

• Hierarchical Cell Structure (HCS)

• Measurement Power Offsets

• Directed RRC Connection Setup

• Common Channel Layering

• HSPA Capability based Handover• Load and Service based Handover

• Inter-Frequency Handover• Inter-System Handover

Idle Mode, CELL_PCH,

URA_PCH

Transition to

CELL_DCH

Within CELL_DCH

Cell Reselection

Re-direction

Handover

• 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

UMTS 900 UMTS 900

UMTS 2100 (F1/F2)

GSM

DCS

3G System

2G System

Intersystem Hand Ov

Multicarrier Layering Strategic


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Multicarrier Layering Strategic

Generic parameter


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Generic parameter


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

Roll out Modernization and Re farming


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Roll out, Modernization and Re-farming

Project Scope (Implementation):

1. Rollout and Modernization 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*

2. Re-farming Spectrum re-arrangement (GFP with Optimizer)

3. WCDMA Integration U900 & U2100

* High Rejection for Co-site CDMA, Low Rejection Non Co-site CDMA.

Roll out Modernization and Re-farming


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Project Scope (KPI Monitoring):

1. Rollout and Modernization 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.

2. Re-farming Spectrum re-arrangement (GFP with Optimizer) KPI Maintain

3.WCDMA Integration

U900 & U2100 KPI basic

4. Cluster optimization : Scope : Under Core Zone, Buffer Zone, and Common Zone

KPI Methodology and KPI baseline & target : TBD

Implementation process


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Site audit on re-farming area

Final Plan Site release & BSS

– RAN Parameter update

Antenna Optimization

with ACP tool

NetAct

Planneranalysis

Project implementation

Using mini Cluster Base

Implementation V

Performance MoniOptimizatio

KPI Baseline taken

1 . Define mini cluster

(for implementation strategy,performance monitoring)

2. Create Drive route

Ru

fo

Amount of

Antenna

changes= SMALL

Amount of

Antenna

changes

= BiG

Maintain using current

parameters (bcch, bsic,neighbor, sc, etc)

Zone setup(Core – Buffer)

Reporting



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Incase the mini cluster

Performance experience

severe degradation, then runoptimizer tool

Continue ProjectImplementation for next mini

ClusterB

Performance Monitoring andFine Tuning

Spectrum Carving by

Optimizer toolPerformance Monitoring and

Fine Tuning

Spectrum Scanning 900 Mhz

on CORE Zone

Spectrum

on refar

are

U900 Integration Performance Monitoring andFine Tuning

U900 Spectrum Scanning onBuffer zone

SpectOversh

Continue Optimization and

Performance stabilizationFinal Acceptance

Clustering Semarang area


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Clustering Semarang area

Dept. / Author / Date

Clustering Semarang + Jogjakarta


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Clustering Semarang + Jogjakarta


Clustering Jogjakarta


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Clustering Jogjakarta




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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 U2100to provide enough separation between the same frequencies of GSM900 (full band) and

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, a

Check Radio resource, & Transport capacity dimensioning

Ensure GSM 900 capacity dimensioning per site is 3/3/3

Ensure NO

REPEATER

integrated aBuffer Zone



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, g

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 KP

Each cluster contain 10 – 15 sites (resources dependency)

Define Drive Test route, and OSS KPI baseline time frame agreed between NSN – Indos

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



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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 integ

proper parameter value, correction shall be made on Immediate basis. BSS - RAN parameter update (BCCH, SC, Handover..etc)

9. Capacity expansions implementation (HW & SW) 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 pa

Ensure the scope activity on swap modernization (DT)

Update Network Performance and Capacity Report (main KPI, Quality statement, SSV, D

NetAct Optimizer site Database Update

Running NetAct Optimizer for new Frequency, SC allocation, if optimization is required. Tdone when each cluster execution is completed.

U900 sites “must no

at this phase (NO PE

send to project team



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11. Swap / Modernization + Upgrade BTS plus / Ultrasite Ensure PES implemented as Plan

Ensure the scope activity on swap modernization (DT, KPIs)


12. New DCS implementation Ensure PES implemented as Plan

Ensure the scope KPI basic for new DCS


13. Traffic steering Management (GSM DCS)

Containment on DCS as much as possible, obtain the cell performance with no degrading 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)



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g

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



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g

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 Mob

Scan report GSM per ARFCN in core zone with limit Level -155 dB (U900 Isolation) T

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 m



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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 reportin

Ensure the scope activity (DT, KPI basic, included Intersystem HO, Inter Freq HO)

Ensure Load balance capacity among multiband technology (GSM 900 – DCS 1800 – U

26. Spectrum scanning 900 MHz Scan UARFCN focus at BUFFER ZONE, by using Scanner box (SEEGULL) not Mobile

Scan report GSM per ARFCN in core zone with limit Level -155 dB (U900 Isolation) T

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

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 m

Pre Launch and Optimization


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Optimization Strategy and Process

Optimization Strategy


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Accessibility

Improvement

Retain-ability

ImprovementSystem Integrity

Improvement

(E)GPRS/R99 /

HSDPA

Analysis and

Improvement

Traffic &

Capacity

Management

Frequency

OptimizationHan

Opt

Signaling

Analysis and

Improvement

Coverage

Assessment

Transport

Network

Audit



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NETWORK AUDIT

- Parameter & Neighbor audit

- Site Configuration

- Capacity audit

WORST PERFORMANCECELL

CBCCH & ANTENNA GRID ALLIGNMENT

TRAFFIC MANAGEMENT

PARAMETER

OPTIMIZATIONTRANSPORTOPTIMIZATION

CAPACITY OPTIMIZATION

FEATURE OPTIMIZATION

(E)GPRS, R99, HSDPAOPTIMIZATION

AMR OPTIMIZATION

COVERAGE A

& OPTIMIZATIHARDWARE FMONITORING ESCALATION

STRATEGIC FPLANNING &OPTIMIZATION

VIP CUSTOMECOMPLAINT H

2G & 3G RADIO NETWORK PERFORMANCE & OPTIMIZATION

KPI EVALUATION - ACCESSIBILITY


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By Delivering this activities :

Improve the Network Accessibility as per Our KPI Comm

Detail Investigate of All Resources that impacting Netwothe root cause of Congestion Issue.

Review the process and Methodology of Network Capa

Objective

Accessibility Performance in Wireless Network is the Key Performance is an indication of the Ability of the Network toall offered services.

Accessibility is measured as the successful Signalling (RR

RAB Establishment.

Background

Main Activities Regional RNC Accessibility Performance Review Accessibility Performance Drops Distribution Analysis & In

Accessibility Performance Drops Improvements and Reso

Accessibility Performance Parameters Optimization

KPI EVALUATION - RETAINABILITY


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Improve the Network Retain-ability Performance as per

Detail Investigate of All Macro Areas that impacting to proot cause of Drop Call Issue.

Review the impact of current Network Strategy to the RPerformance.

Objective

Retaianability Performance is also the Key Factor as Retaof the Network Ability to serve the user to retain the requedesired duration.

Reatainability is measured per Service or RAB (CS, PS, CInteractive, PS Streaming, PS R99 or PS HS)

Background

Main Activities Regional BSC/RNC Accessibility Performance ReviewRetainability Performance Drops Distribution Analysis & I

Retainability Performance Drops Improvements and Res

Retainability Performance Parameters Optimization

Handover and Soft Handover performance analysis

KPI EVALUATION - MOBILITY


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Improve the Network Integrity Performance as per Our KP

Detail Investigate of all the issue that impacting to Netwoto find the root cause of Low Network Integrity Performan

Review the impact of current Network Strategy to the NetPerformance

Objective

Another important aspect in Wireless Network Service is SPerformance as This KPI is an indication of Quliaty Level oThis Activity, 3 Main KPI are used to measured the 3G NetPerformance i.e.

Soft Handover Success Rate Performance

Inter Radio Access Technology Handover Success Rate

HSDPA Cell Throughput Performance.

Background

Main Activities SHO Success Rate Improvement IRAT Success Rate Improvement

HSDPA Cell Throughput Improvement

Pre Launch and Optimization(Network Statistic)


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(Network Statistic)

Network Statistics


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Network statistics is one of the tool to monitoring and that is the one of indicaperformance. Deliverable shall be delivered to indosat representative as :

OSS Data

Nokia Siemens Networks collect and ensure the availability of OSS data which is accessib

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 cPerformance report in the form of Executive Summary Report and Technical Report. The racceptance requirement.

KPI Acceptance


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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 hoto Sunday. The measurement data is based on hourly data. If any different data betwIndosat, the value will be verified using hourly data.

KPI formula to be used in the calculation are based on KPI formula defined by Indosa

Acceptance will be based on “Reward or Deduction” Scoring Systems.

Nokia Siemens Networks shall submit a complete and comprehensive acceptance reReporting chapter before the acceptance.

Indosat will issue the acceptance certificate if the target score is achieved.

Pre Launch and Optimization(Drive Test)


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(Drive Test)

Drive Test


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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


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Project Progress & reporting


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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


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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)


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Refarming Project 2013_V1_to Share

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