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8/20/2019 WiFi Network Planning v1.4 201501
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ALTAI CERTIFICATION TRAININGWIFI NETWORK PLANNING
Date: By Technical Support Jan 21, 2015
Con!ential "n#ormation$ot #or Distri%ution
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www.altaitechnologies.com
Basic &i'i Technology
&ireless $etwor( )lanning
Co*erage )lanning
Site Sur*ey
&ireless Bac(haul +in(
MODULE OUTLINE
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ASIC WIFI TECHNOLOGY—WIFI STANDARD
11b 11g 11a 11n HT 20 11n HT 40 11a
'reuency%an!
2.-/ 2.-/ 5/ 2.- or 5 / 2.- or 5 / 2.- or 5 /
aimumData 3ate
11%ps 5-%ps 5-%ps 140%ps 400%ps
-50%ps2.-/6 71400 %ps
5/6
8sage 9ccess 9ccess Bri!ging Both Both
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1. 9ccess )oint 9) o!e6 2.-/ #or laptop;smartphone access
2. 3epeater o!e 2.-/ #or wireless in an! wireless out
4. C)< o!e 2.-/ #or wireless in an!
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ASIC WIFI TECHNOLOGY—WIFI SPECTRUM "2#4GH$%
1. =02.11%;g;n are operating at 2.-/
2. Di>erent countries ha*e !i>erent spectrum allocate! #or &i?'i
4. To minimie the o*erlapping, it is recommen!e! to ha*e a separation 25/, i.e. 5
channels.
-.
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ASIC WIFI TECHNOLOGY—WIFI SPECTRUM "
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D'/'.,n' /&' ?'.ag' a.'a
an+ .'@),.''n/
P.'(,,na. +'/'.,n' n)b'.
*,/'* an+ (a/,n*
P'.. *,/' *).?'"S,/' In */.'+ ,n /&' +a/aba*'%
Cn+)/ a ?'.ag' *).?'
"O8/,na(%
S,/' a@),*,/,n In*/a((a/,n
S,/' ng).a/,n a'8/an' /'*/
O
K''8 a,n/'nan'
G ba an+
+'/'.,n' an/'nna
ng).a/,n *&)(+
b' &ang'+9 . .'
*,/'* a.' .'@),.'+
Ta,ng 8&/*
D'/'.,n' 83'. *)88(
an+ ba&a)( +'/'.,n' a 8.'(,,na.
8(' (a/,n
Ma n''+ / .'
+'/'.,n' /&' 8('9 .
'?'n9 *,/' (a/,n
WIRELESS NETWORK PLANNING—PROCESSING PATH
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ELESS NETWORK PLANNING—WIRELESS NETWORK REUIREMEN
• Ta.g'/ C?'.ag' A.'a
– Dimension o# the area on a map
– 8ser !istri%ution
– Buil!ing;Trees !istri%ution an! height
• An/,,8a/'+ N)b'. U*'.*
– )otential su%scri%ers
– Can ta(e re#erence to no o# schools, mo%ile phone su%scri%er num%er, &ia
users
• W,.'('** A88(,a/,n
– Eoice o*er ")
– Sur*eillance camera
–
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ITE SUREY—SITE INFORMATION
Store! in a !ata%ase #or
re#erence
Site +ocation
Site +ocation Details
Site )hoto )hoto o# each sector *iew
Cng).a/,n B'a.,ng D3n/,(/
S'/. A 10 <S'/. B ;0 <S'/. C 1!0 10S'/. D 10 10
E:a8(' S,/' In.a/,n
E:a8(' S,/' Ma8
E:a8(' S,/' Cng).a/,n
A
B
C
D
N
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SITE SUREY—SITE ACUISITION
• Site $egotiation
• )ower Supply an! &ire! $etwor( +in(
• 9ntenna "nstallation )lanning
• Site Conrmation
• "nstallation +ayout an! Construction )lan
• Site "n#ormation Data%ase
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ITE SUREY—SITE INSTALLATION "A>EIN%
N./&
A
0#;
RooftopHeight 25m
Side-Vie !
Rooftop
1#;
0#>
Side-Vie !
0#;
1
1
P(' ba*'1 : 1 : 0#12
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COERAGE PLANNING—CALCULATE DOWNTITL
• T&' '(( ?'.ag' )(+ b' n.'+b +3n/,(/
• A**)' – & J an/'nna &',g&/ – + J +,*/an' –
J +3n/,(/ ang('• T&' +3n /,(/ ang(' ,*J
a./an" & +%
–
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COERAGE PLANNING—ANGER METER
• Depen!s on
– 9ntenna height
– 9ntenna *ertical %eam?wi!th
– Distance reuire!
– &i'i 8sers Distri%ution
Ang(' M'/'.
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bjective
–Community Interact Program providing Internet access to non-profit and charity organizations
Problem
–Original mesh AP supports less than 2Mbps
ith latency problems
!olution
–Community "ireless selects Altai as the replacement product–#2 $%! deployed in an area of & s'( )m–$lan)et &*+ of ,ast Palo Alto City–
Provide coverage to over ./*** residents
COERAGE PLANNING—CASE STUDY "EAST PALO ALTO9USA%
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COERAGE PLANNING—CASE STUDY "EAST PALO ALTO9USA%
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COERAGE PLANNING—ESTIMATED COERAGE
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COERAGE PLANNING—HUB SITE LOCATION
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S,/'06
S,/'10
S,/'0
S,/'0<
S,/'0!
S,/'11H)b2
*3,/&
B4
B6B;
B>
B
H)b1
B2
*3,/&
>02#11a
In/'.n'/
COERAGE PLANNING—BACKHAUL DESIGN
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COERAGE PANNING—SITE 1J PREDICTEDPLANNED COERAGE
S,/' 1
0#!2 ,('
P.'+,/'+ C?'.ag'
M'a*).'+ C?'.ag'
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Site 2
0.32 mile
Predicted Coverage
Measured Coverage
COERAGE PANNING—SITE 2J PREDICTEDPLANNEDCOERAGE
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Site "
Site 2
SITE SUREY—FIELD MEASUREMENT IN HANG$HOU
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# h o n g
S h a n
R o a d N
o r t h
$oer Rooftop%"&'()
*pper Rooftop
P2
P"
North
+o site ,ocations
Bi,ding Height .5m
SITE SUREY—SITE LOCATION
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A/n
Antennas
SITE SUREY—SITE 1
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D %!"01)
A %"501)
C %2/01)
B %2201)
est
Soth %#hong ShanRoad North)
Northest%,in S3are)
SITE SUREY—IEW FROM SITE 1
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0hong!han 1oad orth
SITE SUREY—SITE 19 SECTOR A
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!eeing the building from 3eng'i 1oad 4at 2.*m distance5
Site 1
SITE SUREY—SITE 19 SECTOR A "UPWARD%
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02#11bgn 2#4GH7
A2 W,F, B.,+g' >02#11na 02#11bgn 2#4GH7
B< U(/.a B.,+g' 02#11bgn 2#4GH7
WIFI BRIDGE
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,6ternal Antenna ptions for A7,in and A2e8igh gain directional antenna9 2*d$i
"i3i $ridge 1e'uirements
Clear :ine of !ight 4:O!53ine tuning antenna alignment
Configuring bridge distance in eb admin
Common $ridge ;istance9 .
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COERAGE MAPPING
Coverage mapping is important step to e6amine the result of the netor) pl
anning(
Measure the ;: 1!!I of different AP along the path in specified area(
%ools for "i3i Coverage mapping
In!!I;er
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600
COERAGE MAPPING — RESULT EAMPLE
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1esult of the coverage mapping is used to
Adjust the don tilt/ direction/ height and transmit poer of AP;etermine if additional sites re'uired to add to improve the netor) coverage(
Coverage test is alays encouraging before site ac'uisition of ne sites to c
onfirm the ne sites coverage!etup A7,in in the ne sites temporary ith tripod and do coverage mapping(
COERAGE MAPPING — RESULT EAMPLE
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THANK YOU