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Summary
Technologies Radio Network Planning Process
Radio Media & Model Tuning
Network Dimensioning
Transmission Planning
Parameter Planning & Optimisation
Network Capacity Evolution
Planning Tools
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Radio Network Planning Process
EXPLAIN CHAPTER 2
Network Planning (2)
Process (5)
Site Selection (5)
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2. Radio NetworkPlanning Process
Network planning team
data acquisitionsite survey and selection
field measurement evaluation
NW design and analysis
transmission planning
Network design
number and configuration of BS
antenna systems specifications
BSS topology
dimensioning of transmission lines
frequency plan
network evolution strategy
Network performance
grade of service (blocking)
outage calculations
interference probabilities
quality observation
Customer requirements
coverage requirements
quality of service
recommended sites
subscriber forecasts
External information sources
topo- & morphological datapopulation data
bandwidth available
frequency co-ordination
constraints
Interactions with external subcontractors
site hunting teams
measurement teams
operator
switch planning engineers
Network PlanningScope
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CoveragePlanning andSite Selection
ParameterPlanning
PropagationmeasurementsCoverageprediction
SiteacquisitionCoverageoptimization
External InterferenceAnalysis
NetworkConfiguration
andDimensioning
DEFINITION IMPLEMENTATION
Traffic distribution
Service distributionAllowed blocking/queuingSystem features
IdentificationAdaptation
Area / Cellspecific
Handoverstrategies
Maximumnetworkloading
Other RRM
NetworkOptimization
O & M
Surveymeasurements
Statisticalperformanceanalysis
QualityEfficiencyAvailability
Capacity Requirements
Requirementsand strategyfor coverage,quality andcapacity,
per service
ProcessGeneral
chapter 3 & 4 chapter 6
chapter 6 &
7chapter 2
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external inputs:
(traffic, subs. forecast,
coverage requirements...)
Initial NW dimensioning
TRX, cells, sites
bandwidth needed
NW topology
suggestions for
site locations
cell parameters
coverage achieved
coverage prediction
signal strength
multipath propagation
Site
pre-validation
site accepted ?planning
criteria fulfilled?
go to
frequency
planning
nominal cell plan
site inspectionreal cell plan
field measurements
N
N
N
create cell
data for
BS
C field measurements
ProcessRoll-out
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2. Radio NetworkPlanning Process Process
Site Building
issue search
area &
requirements
find suitable
site
candidates
calculate coverage
range of each
candidate
propagation
measurements
needed ?
transmission
links
available?
sign contract
with site
owner
get building permit
construction work
installing & testing
on air!
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Site Acquisition
radio
planner
fixed network
planner
measurement
teams
architect
network
operator
site acquisition
agentsite owner
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2. Radio NetworkPlanning Process Process
Documentation
SARF
Site AcquisitionRequest Form
SIR/SARSite Information(Acquisition) Report
TSS reportTechnical SiteSurvey Report
TDRSTechnical Data forRadiating System
...
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Radio criteria
good view in mainbeam direction
no surrounding high
obstacles
good visibility ofterrain
room for antennamounting
LOS to nextmicrowave site
short cablingdistances
Non-radiocriteria
space forequipment
availability ofleased lines ormicrowave link
power supply
access restrictions?
house owner
rental costs
Site SelectionCriteria
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2. Radio NetworkPlanning Process Site Selection
General Considerations
Proper site location determinesusefulness of its cells
Sites are expensive
Sites are long-term investments
Site acquisition is a slow process Hundreds of sites needed per network
Base station site is a valuable
long-term asset for the operator
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wanted cell
boundary
uncontrolled, strong
interferences
interleaved coverage areas:
weak own signal, strong foreign signal
Avoid hill-top locations for BS sites uncontrolled interferences interleaved coverage awkward HO behaviours but: good location for microwave links!
Site SelectionBad Site Location
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wanted cell
boundary
Prefer sites off the hill-tops use hills to separate cells contiguous coverage area needs only low antenna heights if sites are
slightly elevated above valley bottom
Site SelectionGood Site Location
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Collect all necessary information abou
tsite details
site coordinates, height above sea level, exactaddress
house owner
type of building
building materials (photo)
possible antenna heights
360deg photo (clearance view)
neighbourhood, surrounding environment
drawing sketch of rooftop antenna mounting conditions
access possibilities (truck?, road, roof)
BS location, approx. feeder lengths
Site SelectionSite Info