wifi network planning v1.4 201501

8/20/2019 WiFi Network Planning v1.4 201501

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www.altaitechnologies.com


ALTAI CERTIFICATION TRAININGWIFI NETWORK PLANNING

Date: By Technical Support Jan 21, 2015

Con!ential "n#ormation$ot #or Distri%ution


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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

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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



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

–



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



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



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



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" & +%

–



COERAGE PLANNING—ANGER METER

• Depen!s on

– 9ntenna height

– 9ntenna *ertical %eam?wi!th

– Distance reuire!

– &i'i 8sers Distri%ution

Ang(' M'/'.



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%



COERAGE PLANNING—CASE STUDY "EAST PALO ALTO9USA%



COERAGE PLANNING—ESTIMATED COERAGE



COERAGE PLANNING—HUB SITE LOCATION



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



COERAGE PANNING—SITE 1J PREDICTEDPLANNED COERAGE

S,/' 1

0#!2 ,('

P.'+,/'+ C?'.ag'

M'a*).'+ C?'.ag'



Site 2

0.32 mile

Predicted Coverage

Measured Coverage

COERAGE PANNING—SITE 2J PREDICTEDPLANNEDCOERAGE



Site "

Site 2

SITE SUREY—FIELD MEASUREMENT IN HANG$HOU



# 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

wifi network planning v1.4 201501

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