road coverage

All rights reserved © 2006, Shanghai Xinmin

公司简介INTRODUCTION

Road Coverage

SHANGHAI XINMIN TELECOM TECHNOLOGIES CO.,LTD.SHANGHAI XINMIN TELECOM TECHNOLOGIES CO.,LTD.


Recommended Solutions for Road Coverage

Solutions for Road Coverage:

RF Repea ter

Frequency Shift Repea te r

Fiber Optic Repeater

Advantages:

Cost-Effective Solution

Effective ly Utilize the Redundant Capacity of BTS

Easy for Deployment and Maintenance


Road Coverage by BTS

Not High Enough Output Power

(2W to 5W)

Need to deploy the Micro BTS

a long the Main Road

High Cost

Highway or

Speedway

Macro BTS

MicroBTS

MicroBTS

MicroBTS

Micro BTS for Road Coverage:


Road Coverage by Repeater

High Output Power (Tota l 20W)

as same as Macro BTS

Cos t-e ffective

Macro BTS

RF Repeater for Road Coverage:

Highway or

Speedway

F1

F1

F2

F2



High Output Power (Tota l 20W of

Remote Unit) a s same as Macro

BTS

Cos t-e ffective

Highway or

Speedway

Macro BTSFSR for Road Coverage: F12

F11

F11

F11

F13

Donor X1

Remote X1-2

Remote X1-1

F22

F21

MacroBTS

F21 Donor

X2 Remote X2-1



If the Optica l Fiber layout is

ava ilable , it’s ve ry easy to deploy

FOR for Road Coverage



The e ffect of the FOR coverage

is jus t the same as the BTS

coverage

The max. optic link dis tance

be tween donor and remote is 20km

Cost-e ffective

FOR for Road Coverage:

Chain configurationHighway

or Speedwa

y

MacroBTS

F1Donor

F1Remote 3

F1

Remote1

F1 Remote 2



FOR for Road Coverage:

Star configurationHighway

or Speedway

BTS

F1

Donor

F1Remote 3

F1Remote1

F1 Remote 2

If the Optica l Fiber layout is

ava ilable , it’s ve ry easy to deploy

FOR for Road Coverage



The e ffect of the FOR coverage

is jus t the same as the BTS

coverage

The max. optic link dis tance

be tween donor and remote is 20km

Cost-e ffective


Typical Project

Outdoor RF Repeater — Speedway Coverage

Weak signal area

Problems:Because of the shield of the mountains,obviously there is weak signal area andblind area along the speedway.

Solution:Install outdoor repeater to amplify signalreceived from BTS and cover the weaksignal area and blind area by use ofdirectional antenna (mobile antenna) toenlarge BTS coverage area.

Rx_level before installation


Typical Project

Notices in integration:Outdoor repeater with high output power requiredhigh isolation to avoid self-excitation. Choose corner reflector antenna as mobile antenna andshort backfire antenna as donor antenna becauseof their good F/B to meet isolation requirement.Choose the best antenna location to make use ofhouse’s obstruction to increase the isolation between donor and mobile antenna.

Donor antenna—short backfire

antenna

Mobile antenna—corner reflector

antenna

mount ai n

2

Shanggang

t own 1

N

Repeat er 2： near ShanggangDonor ant enna： 0. 9m shor t backf i r e ant enna Di r ect i on： 45 degr ees Hei ght ： 5mMobi l e ant enna： Cor ner Ref l ect or ant enna Di r ect i on： 165 degr ees Hei ght ： 16mDonor si gnal ： GSM- - - BCCH: 99（ - 76dBm） CDMA- - PN 294（ - 78dBm）

Repeat er 1： near bel l - bui l di ngDonor ant enna： 0. 9m shor t backf i r e ant enna Di r ect i on： 135 degr ees Hei ght ： 8mMobi l e ant enna： Cor ner Ref l ect or ant enna Di r ect i on： 65 degr ee Hei ght ： 15mDonor si gnal ： GSM- - - BCCH: 111（ - 77dBm） CDMA- - PN 411（ - 80dBm）

No

Pr oj ectName

Ti me

Road Cover age f or Chi na Uni comCover age f r om t own 1 t o 2

2002/ 5/ 28

Desi gn

Shanghai Xi nmi n

Pol e

Mobi l e ant enna

Donor ant enna

t own 2

mount ai n

1Mumi an


Typical Project

After installation

Equipment list— Guangzhou Speedway Coverage

Name Type

Repea ter Band Se lective Repeater

Output power: 40, 43dBm

Donor antenna short backfire antennaGain: 14dBi

Mobile antenna corner re flector antennaGain: 16dBi

Effect:After installation, the Rx_level ofthis area improved obviously and theweak signal area disappeared.

Rx_level after installation


Outdoor Repeater—Road coverage

Problems:The target coverage area is a mountainous area in the north Philippines.It is requiredfor road coverage with 2km radius inorder to make call even on the edge ofcoverage area.

Solution:The donor antenna receives signal fromBTS which is amplified by the outdoorrepeater to cover the service area bydirectional antenna.

A

750m

C

D

B

X IN M IN

M ountain

N ote：

A： T ow e r , w ith 30m he ight where to ins ta ll re peater

B： Mounta in, w hic h is a little highe r tha n BTS tow er with flour is hing plants.

Typical Project


Notices in integration:

Choose panel antenna as mobile antenna as well asparaboloid grid antenna as donor antenna with highgain and good F/B. Because antenna with high gainwill help to get maximum donor signal and withgood F/B will satisfy the requirement of isolation.

If it is necessary and possible, the repeater can be installed on the top of the tower according to the target coverage area.

C

AC 220V

B: Donor ANT He ight 5m， orie nta tion 140

D: S ite Room

DESIGN

CHECKED

APPR.

DRAWN

ISSUE

XINMIN

LINLIN

YING QI

1.0 02/20/03

02/20/03

02/20/03

02/20/03

30m

7/8" feeder

C: Re pe a te r

Note:

Repeater

1.2m

A

OUT BUILDING SOLUTION

SCOLE:NTS

PHILIPPINES

XIN MIN

SHEET:1/1 BELONGS TO: DIGITEL GSM

B

5m

D

A: Mobile Ante nna(mobile ANT)

He ight 30m， orie nta tion 260

Typical Project

Installation Diagram


Typical Project

Effect:After installation of outdoor repeater, the Rx_level of this area improved obviouslyand weak signal area disappeared.

Equipment list–Philippines road coverage

Name Type

Repeater Band Se lective Repea ter

Output power: 40dBm

Donor antenna paraboloid grid antennaGain: 24dBi

Mobile antenna panel antennaGain: 18dBi


Conclusion

Comparison Micro BTS RF Repeater FSR FOR

Output Power 2W to 5W Tota l 20W Tota l 20W Tota l 20W

Ins ta lla tion Difficult Easy Easy Easy

Effect --

Little worse than BTS

depend on ins ta lla tion and commiss ioning

The same as BTS depend on ins ta lla tion and commiss ioning

The same as BTS

Cos tHigh

3ALow

AMid

2A

Low if Optica l Fiber has deployed a lready

1.5A

www.sbe llxm.com.cn

Add: No.80 Handan Road, Shangha i ChinaTel: 86-21-65605651Fax: 86-21-65444894Email: [email protected] Webs ite : www.sbe llxm.com.cnPos tcode : 200437Hotline : 8008206062 (24 hrs )

SHANGHAI XINMIN TELECOM TECHNOLOGIES CO., LTD

road coverage

Documents

nte nna ga

va ila ble

ant enna di

weak signal area

nte nna mobile

orroad cover age

target coverage area

ma cro bts