GSM WIRELESS NETWORK PLANNING METHOD

1
GSM WIRELESS NETWORK PLANNING METHOD

• 2004?10?21?

2
CONTENT OF NETWORK PLANNING
Analysis of the operators status
Analysis of the operators developing environment
The stratagem of the operators development
The goal of the operators development
Market planning
Network planning
Finance planning
Transmission system planning
Core network planning
Wireless network planning
Network construction project
3
WIRELESS NETWORK PLANNING
Wireless network planning
Wireless network planning target
Coverage target
Capacity target
Cost target
The number of base stations Q1
The number of base stations Q2
Erland capacity of a single cell
Link budget
Parameters of base stations
Investment
4
CONTENT OF PLANNING GSM WIRELESS NETWORK

• COVERAGE
• TARGETCoverage probability(populace?geography)
• RESULTThe number of the stations Q1 ?Information
  of the base stations.(location?altitude?power and
  antenna bearing)
• CAPACITY
• TARGETThe number of the subscribers?GOS
• RESULTThe number of the base stations
  Q2?Configurations of the channels.

5
GSM WIRELESS NETWORK PLAN_coverage

• Area class
• Urban
• Suburban
• Village
• Open area
• Indoor
• Propagation model emendation
• Link budget
• Radio coverage of a single cell

6
GSM WIRELESS NETWORK PLAN
7
GSM WIRELESS NETWORK PLAN

• The considered factors to make certain one
  subscriber busy hour traffic
• Increase trends in system busy hour traffic ,one
  subscribers busy hour traffic and the
  relationship between subscriber increase and
  traffic increase within a year
• Traffic inrease brought by feast day,price policy
  and data services.

Busy hour traffic of one mobile phone
Analysis of the operator future policy
Unstable stability of the system busy hour traffic
Fluctuation of the system busy hour traffic
Busy hour traffic of one subscriber
8
GSM WIRELESS NETWORK PLAN_capacity

• targetthe number of base stations?channels
  configuration.
• process
• Firstly, getting the total traffics by the
  predicted subscribers
• secondly, analysing the total traffics into every
  regions
• thirdly,getting the number of the base stations
  and the configuration of the channels.

9
SUBSCRIBER PREDICTION
10
SERVICE PREDICTION(from up to down)
11
SERVICE PREDICTION(from down to up)
Here the subscribers predicted respectively by
the way of simple curve fit method?popularization
rate method-saturation rate method?relay analysis
prediction?analogy method.
12
GSM WIRELESS NETWORK PLAN_capacity

• Analysing the total traffics into every regions.
• 1?based on proportion of the traffics in existing
  network of every region
• 2?statistics of relative increase rate in every
  region.
• 3?resultproportion of traffics in network of
  every region in the plan period.

13
GSM WIRELESS NETWORK PLAN_capacity

• Analysis of feast traffics
• purposeanalysis of the peak traffics in every
  region to reserve some redundant capacity for the
  peak traffic.
• process
• 1?comparing the feasts peak traffics with the
  weekday peak traffics
• 2?ensuring the plan traffics to meet the most
  busy hour traffics of the plan period.

14
GSM WIRELESS NETWORK PLAN_capacity
Analysis of traffic density
Space between the base stations in the maximum
traffic density area.
The wireless network in the area could provide
the maximum traffic in the end of the plan period
GSM900/GSM1800bi-frequency wireless network plan
The traffic density and traffic development in
the maximum traffic density area.
The maximum traffic density in the end of the
plan period.
15
GSM WIRELESS NETWORK PLAN_capacity

• Traffics Analysis of the maximum traffic density
  area.
• targetto determine whether to introduce GSM1800
  system
• process
• 1?according to traffics statistics of about 3km2
  area,to get the increase trends of the traffic
  density in the area and the prediction on
  traffics density in the area within 3 years.
• 2?according to Statistics of the base stations in
  the area,to get the average distance of the base
  stations
• 3?according to the bearable traffic density of
  the different wireless network,to determine
  whether to introduce the bi-frequency network.

16
GSM WIRELESS NETWORK PLAN_capacity
GSM wireless network construction
The dimension of the planned wireless network
Request of the GSM wireless network

• Subscriber prediction
• Subscriber traffics prediction

• The number of base stations in every regions
• The number of the frequencies in every regions
• The number of the base stations for coverage in
  every regions
• The number of the frequencies for coverage in
  every regions.

CONFIGURATION OF THE EXISTING WIRELESS NETWORK

• The configurations of the base stations and the
  channels in every regions
• The ratio of the base stations for coverage in
  every regions
• The principle of GPRS dedicated PDCH
  configuration
• The ration of half-rate traffics.

17
GSM WIRELESS NETWORK PLAN_capacity

• Targettransfering traffic into channels?
• procedure
• 1?statistics of the cell parameters in every
  region,including the number of the base stations
  ,cells,channels etc.
• 2?to make sure the traffic of one channel in
  every region by looking up reference form
• 3?Dividing the traffics of the every region,educe
  the number of the voice channels?

18
GSM WIRELESS NETWORK PLAN_capacity

• purposetransfering channels into carriers and
  base stations.
• process
• 1?Considering the influence of BCCH/SDCCH,and
  GPRS dedicated PDCH
• 2? With the number of carriers in a cell of
  existing networks for a reference, transfer voice
  channels into carriers.
• 3?the total channels is divided by the number of
  channels per site in every region to get the
  number of the sites.
• 4?compared with the number of the existing base
  stations,to estimate whether the network arrive
  at the coverage target .

19
GSM WIRELESS NETWORK PLAN_optimization

• target
• Enhance use efficiency of network resource and
  improve network quality of service.
• Resolve problem of the network coverage and the
  traffic imbalance.
• Wireless network optimization
• Optimizing base stations location
• Adjusting sites type
• Adjusting antennas
• Adjusting carriers to balance the assigned
  traffic

20
GSM WIRELESS NETWORK PLAN_items
21
GPRS wireless network plan
22
Short message center plan

• Plan method

23
Finance plan
Plan method
24
THANK YOU !