05_rn31545en10gla0_radio network planning process

8/11/2019 05_RN31545EN10GLA0_Radio Network Planning Process

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1 NSN Siemens Networks RN31545EN10GLA0

For internal use

Radio network planning process3GRPESSModule 4


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Module 4Radio network planning process

Objectives

After this module the participant shall be able to:-

Understand radio network planning process

Understand main steps in dimensioning process


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Module Contents

Radio network planning process

Radio network dimensioning process


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Module Contents


Radio network dimensioning process


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Radio network planning phases


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Site selection and planning

Practical site selection based on target site locations and available sites Site implementation plan

Actual site locations and implementation plans

Configuration Planning

Configuration planning is related to possible configurations as well as feature implementation Future configuration takes into account the possibility to expand

Coverage and Capacity Planning

Coverage and Capacity Planning is very much tied to Site selection and Configurationplanning

Coverage requirements needs to be met Capacity requirements estimated as well as future expansions needs to be noted

Parameter planning

Initial parameter configuration

Scrambling code plan, neighbour plan Detailed parameter planning Optimised/verified parameter plan

Radio network planning tasks

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Planning tasks and network

Pre-planning activities are high especially when operator is

Greenfield or deploying a new technology Main focus in existing operators are in coverage and capacity

as well as configuration planning

Optimisation is main task in overall network planning and it isalways recommended to be done and kept as a veryimportant task of network operation



For internal use

Overall Planning Process

The overall Planning Process can be described with thefollowing figure:

SystemDimensioning

Radio NetworkPlanning

Pre-launchOptimisation

Post-launchOptimisation

3G neighbour lists2G neighbour listsAntenna tiltsLocal areaparameter tuning

Site selectionSite design3G neighbour lists2G neighbour listsScrambling codesLocation areas

Routing areasRNC areas

Link budget analsysis

Node B count andconfiguration

RNC count andconfiguration

Transmissioncapacity and

configuration

RF carriersSectorisationROC to CECNode B powerBaseband proc.Transmission

HSDPAMicrocells

CapacityEvolution

Performance Monitoring

3G neighbour lists2G neighbour listsAntenna tiltsLocal areaparameter tuningAdditional sites

User experienceoptimisation

Wide area parameter tuning

SystemDimensioning

Radio NetworkPlanning

Pre-launchOptimisation

Post-launchOptimisation

3G neighbour lists2G neighbour listsAntenna tiltsLocal areaparameter tuning

Site selectionSite design3G neighbour lists2G neighbour listsScrambling codesLocation areas

Routing areasURA areas

Link budget analsysis

Node B count andconfiguration

Adapter count andconfiguration

Transmissioncapacity and

configuration

RF carriersSectorisationSystem modulesNode B powerBaseband proc.Transmission

HSPA featuresMicrocells

CapacityEvolution

Performance Monitoring

3G neighbour lists2G neighbour listsAntenna tiltsLocal areaparameter tuningAdditional sites

User experienceoptimisation

Wide area parameter tuning



For internal use

1. Make sure that there is enough coverage

Low drop call rate with good quality2. Put sites close to the users

No blocking if all cells collect some traffic

low Interference if UEs are near to the cell

3. Avoid unnecessary overlapping between the cells low interference level

High throughput for PS data

Low Soft handover overhead

Wall installation Pole installation Pile/Floor installation

Multimode NSN UltraSiteEDGE BTS & 19 rack Installation

Faster, more

economic Site

Acquisition &

rollout with

Flexi BTS

Radio Planning Principlesmuch easier with Flexi



For internal use

Module Contents


Radio network dimensioning process Dimensioning process

DCH traffic dimensioning

DCH + HSDPA traffic dimensioning

DCH + HSPA traffic dimensioning



For internal use

Radio dimensioning processBasics

Dimensioning process can be split in high level steps:

Input data Cell Plan Network PlanUTRAN Final Network

Input data has big influence on whole result Cell Planning needs to follow customer input and system performance

Network plan needs to follow customer requirements and also detailedmapping to planned network conditions

Final Network is the result from the iterative analysis of inputs,performance values and also area and requirement mapping

InputData

CellPlan

FixedNetwork

Plan-UTRAN

FinalNetwork

UTRAN



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Input Data

Input data includes for example Traffic model and capacity requirements

Coverage Requirements

Quality Requirements

Similarly customer might have special requirements (e.g.road, train coverage)

When number of sites is fixed the traffic model,capacity/coverage and quality requirements are not as aninput More as an output of estimation (i.e. what can be achieved with X

number of sites)


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Cell Plan

Cell Planning includes offered traffic and its distribution

link budgetcoverage maximum air interface capacity

Node B hardware configuration

Cell coverage is depended: Frequencies

System performance Antennas

Environment characteristics

Cell capacity is depended: Traffic model

Frequencies Selected features

HW configurations is depended: Cell coverage, sectorisation, # of carriers

Selected features and capacityrequirements


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Basic information needed for dimensioning

frequency (e.g. 2100, 1900, 850)

Clutter type, in clutter type you can define four clutter types (e.g. dense urban, urban, suburban, rural). Subscribers, the amount of subscribers in the area is typed over here

Total area to be covered, the total area size in sqkm which is needed to cover.

Traffic profile and volumes can be defined per clutter

User equipment information

UE type

Influences on transmit power (dBm) and possible antenna gain (dB) Body loss, commonly for voice

Node B information

Node B type Influences on noise figure

Antenna and antenna gains

cable loss UL/DL (MHA usage)

# of carriers, # of sectors

Node B output power (40W/20W)

HSPA information

HSDPA associated Uplink RB

HSDPA scheduler type (e.g. shared or cell specific)

Scheduling type (e.g. Round Robin or Proportional Fair scheduling)

Number of codes, 5/10/15 Number of HSUPA users and L1 throughput

Received pilot power= Pilot t ransmit powerAntenna line losses+Antenna gain- (Max. pat hloss Planning margins)

Antenna gain

Antenna line losses

Pilot transmit power

Max.p

athloss

-marg

ins

CPICH EIRP

Antenna gain

MHA usage

Frequency

Noise Figure

Output power# of carriers

Feeder losses

# of sectors

Noise Figure

Transmit power

Antenna gain

Body Loss

Path loss and margins

cell range calculation

Cell Plan and Example inputs for coverage,capacity and HW


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For internal use

Cell Plan and Example inputs for coverage, capacity and HW

Link budget gains and margins per clutter (e.g. Urban, suburban and rural)

Antenna height BS Antenna height MS

Location probability, Indoor location probability, for example 95%. Building penetration loss Standard deviationArea and capacity factors

Coverage limiting service, UL DPCH (16/64/128/384), HSDPA (cell edge throughput) orHSUPA (cell edge throughput).

Planned load

NRT 64/384 planning margin effect on Coverage Area

(stepped +/- 1dB)

-80%

-60%

-40%

-20%

0%20%

40%

60%

80%

100%

120%

-6 -4 -2 0 2 4 6

Change of parameter

Effectin

Co

verageArea

Building penetration loss change (ref = 16dB)

Indoor standard deviation change (ref = 12dB)


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UTRA Network Plan Final network

Based on cell plan

Including traffic modeling

Noticing also environmentcharacteristics and specialrequirements

Main inputs:Area size

Number of sites, and configurations

Detailed access interface

configuration and connections


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-Outputto

ward

Accessplanning

Per area and per Phase

Number of Node Bs

Node B Type

Node B Configuration

Node B Upgrade

Configuration

NodeB

Dimensioning

CHC, DRIC, FSM)

Radio Dimensioning data flow

Customer

Requirements

LINK BUDGET

Rel99, CPICH,

HSDPA, HSUPA

RF Planning

Parameters

interf marg

HO gain

environment

etc.

System

Parameters

Eb/No

TX power

etc.

Infrastr.

Parameters

# of sectors

antennas

req cov area

etc.

Capacity

Air Interface

Dimensioning

(Capacity: Rel99

+ HSPA )

Traffic

Demand

per bearer

# of subs

GoS

etc.

System

Parameters

spectral

efficiency

etc.

Outputs

Customer Requirements and Input Parameters


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Capacity for:

DCH services

VoIP

HSDPA HSUPA

Service (e.g.DCH)

impact on other

services (e.g.HSPA)

Spreading Codecapacity

Coverage and capacity dimensioning

Dimensioning process has two main parts:

Coverage dimensioning which is handled mainly in Link Budget Capacity dimensioning

Mainly calculation are for shared DCH + HSPA carrier, but more and morefocusing also on dedicated carriers and multi-carriers

Link budget and Capacity dimensioning are connected to each other in

order to model coverage and capacity iteration and impact on both parts

Coverage

dimensioning

Capacity

dimensioning

CapacityLink budget

Coverage based on:

DCH services

HSDPA

HSUPA

VoIP


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Dimensioning in case of Rel99 traffic only

Link Budget calculation for DCH channels

For bearers for which coverage is requested Using default or project specific parameters

Identification of the limiting bearer in UL and DL

The one with the smallest cell range

Optional: Calculation of CPICH Link Budget in relation with the limiting bearer

Usage of the Link Budget results to the Capacity dimensioning

How many sites available within certain loading assumptions

Capacity and equipment calculation

Coverage

dimensioning

Capacity

dimensioning

Coverage dimensioning selection:

Link Budget R99 (based on

service)

Output # of coverage sites RNC

Dimensioning

Iu-b

Dimensioning

CE Calculation

R99 capacity

DimensioningInput:

available

capacity

Output:

R99 UL/DL load

Resultevaluation

Additional

capacity Node Bs

Not

OK

OK

Air interface dimensioning, only DCH carrier

Coverage dimensioning Capacity dimensioning

Dimensioning inputs and requirements

# ofNode Bs

(coverage+capacity)


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Dimensioning in case of Rel99 and HSDPA traffic(1/2)

Link Budget calculation for: DCH Channels HSDPA cell edge throughput

Link Budget calculation for DCHchannels For bearers for which coverage is

requested

Using default or project specificparameters

HSDPA channel Link Budgetcalculation For throughput value at the cell edge

Cell edge condition is always worsethan inside the cell

Throughput is still limited by manyissues UE capability Features Interference Available power and code tree

Mean cell throughput

(1 transimttion upto 15 codes)

0,0

0,5

1,0

1,5

2,0

2,5

3,0

3,5

0,45 0,6 0,75 0,9 1,05 1,2 1,35antenna distance [km]

datarate[Mb/s]

cell edge

At cell edge ~350 kbps, macro cell

Many issues impactson inside cell throughput

Same distancecan mean

totally differentconditions


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Coverage

dimensioning

Capacity

dimensioning

Dimensioning in case of Rel99 and HSDPA traffic(2/2)

Identification of the limiting bearer in UL and DL (including HSDPA link)

The one with the smallest cell range Optional: Calculation of CPICH Link Budget in relation with the limiting bearer

Capacity and equipment calculation Among R99 limitation, where one is the total number of sites available

HSDPA capacity is also tied on signal condition, thus impacted by interference

HSDPA has commonly lower priority than R99 CS services, thus available conditionmight change

HSDPA features impact on capacity as well as needed amount of HW.


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Dimensioning in case of Rel99 and HSPA traffic(1/2) Link Budget calculation for DCH channels

For bearers for which coverage is requested

Using default or project specific parameters

HSDPA channel Link Budget calculation For throughput value at the cell edge (the same as for Rel99 and HSDPA Traffic) Using default or project specific parameters

HSUPA channel Link Budget calculation

For throughput value at the cell edge Using default or project specific parameters

Coverage dimensioning selection:

Link Budget R99 (based on

service)Link Budget HSDPA (based on

cell edge throughput)

Link Budget HSUPA (based on

cell edge throughput)

Output # of coverage sites

HSDPA

capacity

dimensioning

RNC

Dimensioning

Iu-b

Dimensioning

CE Calculation

HSUPA

capacity

dimensioning

R99 capacity

Dimensioning

UL/DL Load

Resultevaluation

Additional

capacity Node Bs

Not OK

O

K

Air interface dimensioning, shared carrier DCH + HSPA

Coverage dimensioning Capacity dimensioning

Dimensioning inputs and requirements

# ofNode Bs

(coverage+capacity)


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Coverage

dimensioning

Capacity

dimensioning

Dimensioning in case of Rel99 and HSPA traffic(2/2)

Identification of the limiting bearer in UL (including HSUPA

link) and DL (including HSDPA link) The one with the smallest cell range

HSUPA brings somewhat new challenges on dimensioning HSUPA is sharing capacity between other UL services

HSUPA equipment dimensioning differs from R99 and HSDPA When network HSPA services are increasing commonly

additional carrier is needed to support higher demand ofHSPA.


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27 NSN Si N t k RN31545EN10GLA0

For internal use

Module 4Radio network planning process

Summary

Planning process can be divided to three main phases

Pre-planning

Detailed planning

Optimisation

Successful dimensioning depends on sufficient and

accurate input data

Even best dimensioning results provides only an estimate

05_rn31545en10gla0_radio network planning process

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