Upload
jhon-grandez
View
220
Download
0
Embed Size (px)
Citation preview
7/30/2019 5-WiMAX Wireless Network Planning Process
1/43
WiMAX Wireless Network Planning Process
7/30/2019 5-WiMAX Wireless Network Planning Process
2/43
Contents
Reasons for Network Planning
Aim of Network Planning
Steps in Network Planning
7/30/2019 5-WiMAX Wireless Network Planning Process
3/43
Reasons for Network Planning
Coverage varies with the following parameters
System loading
Velocities of mobile users
Data rate
Complexity of the practical system
7/30/2019 5-WiMAX Wireless Network Planning Process
4/43
Contents
Reasons for Network Planning
Aim of Network Planning
Steps in Network Planning
7/30/2019 5-WiMAX Wireless Network Planning Process
5/43
Aim of Network Planning
Best possible coverage in the service areas
Forecast traffic distribution precisely, design the best
possible Base Station topology
Optimal system parameters for best Quality of
Service
Fewest equipment and lowest cost when capacityand QOS requirement are met
7/30/2019 5-WiMAX Wireless Network Planning Process
6/43
Contents
Reasons for Network Planning
Aim of Network Planning
Steps in Network Planning
7/30/2019 5-WiMAX Wireless Network Planning Process
7/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
Survey
Report
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
8/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
Survey
Report
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
9/43
Pre-Research of Project
Examine the content and acceptance
standards of the project contract
Conduct survey of the environment
of the project site, if necessary
Amend the items of the contract
that cannot be realized
7/30/2019 5-WiMAX Wireless Network Planning Process
10/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
Survey
Report
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
11/43
Requirement Analysis
Determine the detailed customer requirement
for the network
Survey the status of the existing network and
find out the development plan
Forecast both the short-term and long-term
traffic demand
Clarify and establish the acceptance standards
Investigate the wireless propagation
environment (such as topography &
physiognomy)
Verify the traffic distribution
7/30/2019 5-WiMAX Wireless Network Planning Process
12/43
Requirement Analysis
Topography & physiognomy
Population distribution
Coverage demand
Wireless frequencyoccupation
Strategy for developingsubscribers
Information of provided sites
Traffic distribution
Demand of system
parameters
Special demand
OUTPUT:
7/30/2019 5-WiMAX Wireless Network Planning Process
13/43
Requirement Analysis
Coverage demand
(Coverage boundary)
Traffic demand
(Important area)
7/30/2019 5-WiMAX Wireless Network Planning Process
14/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
SurveyReport
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
15/43
Survey of Provided Sites
Collect information about the wirelesspropagation environment of the
provided sites.
In case these sites meet the
topological structure of the network
and the users' needs, try to make
these provided sites workable to
reduce investment
7/30/2019 5-WiMAX Wireless Network Planning Process
16/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
SurveyReport
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
17/43
Reduce Process
According to the analysis report of the
requirement and sites survey result, decide
suitable procedure of the project.
Some following Working content might be
cut down after this stage.
7/30/2019 5-WiMAX Wireless Network Planning Process
18/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
SurveyReport
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
19/43
Network Evaluation
Carry out some tests to
evaluate customer's existing
network, and according to the
result plan the network
construction for the next stage.
7/30/2019 5-WiMAX Wireless Network Planning Process
20/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
SurveyReport
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
21/43
Wireless Environment Test
Scan the plannedcoverage area to make
sure the frequency
spectrum is clean
Perform correction of thepropagation model by CWT
(continuous wave transmitter)
test
7/30/2019 5-WiMAX Wireless Network Planning Process
22/43
Spectrum Scanning
Interference with wide bandwidth and 3dB more than the thermal
noise will provide strong interference
Narrowband Interference
Broadband Interference
7/30/2019 5-WiMAX Wireless Network Planning Process
23/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
SurveyReport
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
24/43
Site Distribution Design
Set up the BS
topology according
to the results of the
link budget andcapacity
calculations. The
existing sites
should be used asmuch as possible.
7/30/2019 5-WiMAX Wireless Network Planning Process
25/43
Link budget
Link budget
Determine maximum path loss
allowed
Determine maximum cell radius
Downlink and uplink
Keep balance
uplink
downlink
Mobile BTSCable
loss
Antenna
gainPath loss
Antenna
gain
Cable
lossMargin
building
Marginslow fade + penetrationloss+...
7/30/2019 5-WiMAX Wireless Network Planning Process
26/43
Capacity Calculation
Capacity LimitedInterference rise
Difficult To obtain resource
Data rate slow
7/30/2019 5-WiMAX Wireless Network Planning Process
27/43
TopologyIdeal Topology Unideal Topology
7/30/2019 5-WiMAX Wireless Network Planning Process
28/43
Site Selection Principles
The density layout of BTS shouldbe according to the traffic density
distribution
Coverage of important users and
dense areas should beguaranteed
Choose existing telecom center
buildings or microwave sites if
possible Perform simulation to verify pilot
pollution areas and blind spots
7/30/2019 5-WiMAX Wireless Network Planning Process
29/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
SurveyReport
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
30/43
Site Survey Principles
Final site location may deviate by no morethan 1/4 of the cell radius from the initial
location
Convenient traffic, reliable electricity, safe
environment should also be considered
Avoid high building obstructions, avoid
strong wireless transmitter, radar or other
serious interference
7/30/2019 5-WiMAX Wireless Network Planning Process
31/43
Avoid obstruction near the site
7/30/2019 5-WiMAX Wireless Network Planning Process
32/43
Avoid gorge wave-guide effect
in narrow street
7/30/2019 5-WiMAX Wireless Network Planning Process
33/43
Avoid propagating in wide road
7/30/2019 5-WiMAX Wireless Network Planning Process
34/43
Site Survey Result
Cell sites may be moved, and cellconfiguration and directions may bemodified according to the site survey result
The sites are distributed evenly ,andaccord with traffic density distribution
7/30/2019 5-WiMAX Wireless Network Planning Process
35/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
SurveyReport
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
36/43
Survey Report Submission
Find out the customer's suggestion
on the preliminarily selected planning
sites, and submit the report.
7/30/2019 5-WiMAX Wireless Network Planning Process
37/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
SurveyReport
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
38/43
Network Plan Simulation
Carry out simulation to verify the wireless
planning and design.
Guarantee the plan to meet the customer's
demand .
7/30/2019 5-WiMAX Wireless Network Planning Process
39/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
SurveyReport
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
40/43
Neighbor Plan
Determine neighbors for each cell
7/30/2019 5-WiMAX Wireless Network Planning Process
41/43
Steps in Network Planning
Pre-research
of Project
Requirement
Analysis
Survey of
Provided
Sites
Reduce
Process
Network
Evaluation
Wireless
Environment
Test
Site
Distribution
Design
SurveyReport
Submission
Site Survey
Network Plan
Simulation
Neighbor
Planning
Wireless Plan
Report
7/30/2019 5-WiMAX Wireless Network Planning Process
42/43
Wireless Plan Report
Wireless network planning and design offer
information for the following stage,
construction of the project.
7/30/2019 5-WiMAX Wireless Network Planning Process
43/43