Introduction BTS2

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BTS

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www.iran-ieee.com

BTS

BTS

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:

) 54141158 (

)(ICT

7831

BTS

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: BTS -- -- ) ( . BTS -- . ) ( GSM -- . GSM -- . --

BTS

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- 03 .

BTS

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:......................................................................................................................................................6 BTS ............................................................................................................7 BTS .......................................................................................................................................8 10.......................................................................................................................BTS 11........................................................................................................................BTS 11.........................................................................................................................................BTS 15................................................................................................................................GSM 16.............................................................................................................................GSM ..................................................................................................................81 .................................................................................................................................81 .........................................................................................................................91 ..........................................................................................................................................02 BSC ........................................................................................................................................22 ..............................................................................................................................52 25......................................................................................................................... GSM ................................................................................................62 26...............................................................................................BTS 29..............................................................................................................BTS 31.............................................................................................GSM450 BTS BTS .........................................................................................................23 BTS ................................................................................................................73 BTS ...........................................................................................................................14 BTS ...................................................................................................................24 ..................................................................................................................................................44

BTS

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: BTS . )(GSM BTS . BTS . )( . 0881 . 52 04 05 . . 6 ) ( . . BTS . 65 65 . .

BTS

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BTS : )( . 0881 . 52 04 05 . . . 6/0 3/0 . . : 1. BTS . 2. .

. .

BTS

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BTS " " BTS Base Tranceiver Station . BTS : ) !! (

. . )( . )( .

BTS

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) ( Feeder BTS . ) ( . ) ( . BTS :

BTS

01

BTS . :

BSC BTS .

: BTS :

1. ) ( 2.

52 03 02 .

BTS

11

:1- BTS Handover ) ( . ( ) handover . . 01 1 .

BTS

2- BTS:

} ) ( { .

. BTS

: BTS1. : TRX - Transciever . . )(Transmitter & Receiver

BTS

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BTS BTS . :

0001 .

04 BTS TRX .

TRX BTS . TRX

3 TRX TRX .

GSMK . BTS TRX .

69

8 . TRX .

BTS 2 4 ) TRX ( 8

6 TRX 84 2 ) - ....( 64 ) ( .

BTS

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BTS TRX :

2. : O&M BTS . BSC MSC . 3. : . BSC BTS

BTS : BTS " " . ... .

BTS

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-SIEMENS

_ALKATEL

BTS

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_ERICSSON

:GSM G.S.M : Groupe Special Mobile Global System For Mobile Communications ) 2391 ( : 0991 :

.

BTS

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GSM .

: GSM _ 009 _ _ ) MS ( ) ( Mobility _ : SMS , Fax . . . _ ISDN _. ..

: GSM GSM :1. : NSS )(Networking & Switching SubSystem 2. : RSS )(Redio SubSystem 3. : OSS )(Operation SubSystem

BTS

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GSM :

GSM . ) ( GSM : _ A BSC MSC . _ A-bis BTS BSC . _ UM MS BTS . MAP : AUC VLR HLR EIR MSC

BTS

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: GSM ) . (PSTN EIR HLR VLR.

MSC MSC AUC

: : MS BS * ) ( *

_: ( Mobile Station ) MS . MS . SIMCARD . :

mobility .

MS

BTS

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_ : ( Base Station) BS :

: 1. : ( Base Station Control ) BSC ) (

BTS : -

- ) ( Paging

: MSC " " .

- MSC

2. : ( Base Tranceiver Station ) BTS ) ( .

BSC . BTS

: " " .

BTS

02

: - .

.

- .

. . . )( Co Channel

.

BTS

12

: 1. 2.

. :

) ( . .

BTS . GSM BTS .

BTS : RF

) ( MS

BTS

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HandOver MS BTS BSC BTS MS MS handover MS

MS Fullrate Halfrate

BTS BSC BTS ) MS ( BTS .

BTS . BSC BTS BSC . Base Station Controller BSC .

BSC

. Hand Over BSC BTS .

BSC

) (

BTS

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. BSC TRX BSC BSC . BSC . BSC LMT 821 652 215 TRX .

BSC BTS BSC .

BTS .

LMT

BTS BSC " " BTS LAC CI

... . BSC .

BSC-BTS .

. BSC-BTS BSS . BSS MSC MS . ) -- MSC . ( BSS N N .

BTS

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BSC

BS MS MS " " )084 ( BTS ) ( . .

-- . -- .

BTS

52

) : ( HO )( Hand Over --

HO .

)HO ( .

. BTS

:

. . . " .

" No Service . BTS .

: GSM GSM GMSK QPSK . GMSK FM .

BTS

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) : ( GSM GSM : 2( 0081-GSM 1( 009-GSM

009- GSM )(UPLINK 098 915 MHZ

935MHZ 069 .

0081-GSM ) (UpLink 0171 1785 MHZ ) (DOWNLINK 1805 MHZ 1880MHZ . 009- GSM 421 009- GSM 0081_ GSM . DUAL BAND

0081- GSM 473 . : .

: BTS :

. )Horizental (H-Pole )Vertical (V-Pole X-Pole 1.

: 2.

3.

BTS

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-- . . : : Shadowing . : Scattering )(l . : Reflection ) (l . : Diffraction ) (l . .

) Diversity ( : . : BTS 03 2 5 . 02 .

BTS

82

: 1( BTS 51 . 2( . . .) (

BTS BTS manual .

BTS

. .

: . ) Downlink BTS (MS Uplink ) MS ( BTS .

Downlink . MS

.

Fade Margin .

BTS

92

. 32 .

* : Downlink BTS

3 . . . Duplexer

* :Uplink . BTS MS .

.

: BTS BTS

) ( .

BTS :

BTS

03

ZZZ-ZZ-XXXX-XXXXX

: ZZ ) 11 33 ( : XXXX ) LAI LAC ( : XXXXX ) (Cell ID

: ZZZ ) 234 (

5 : : XXXX : X

. : -- 009 0081 :

009 0081 .

3 . " 3 " :

BTS

13

) ( X : 1=X 2=X -- 2 1 2 3 3=X

009 0081 : 4=X 5=X : . 6=X

: GSM 450 BTS . .

BTS .

.

GSM .

054 GSM 5002 . BTS 2 002 GSM .

BTS

23

054 GSM

GSM . . .

054 04 BTS 054 GSM . . 054 GSM BTS . GSM . .

054 GSM EDGE GPRS Bit Rate 054 GSM 054 GSM . BTS .

BTS :

.

.

BTS

33

.

.

01 .

72 . .

. BTS . BTS . .

72 .

:

7831 BTS 51 013 .

" BTS . "

BTS

43

.

BTS .

BTS

. " "

: BTS

.

. BTS .

.

.

. BTS

: BTS 02 01 .

002 002 02

BTS

53

... 02 . .

01

.

. 72

51 BTS : " " : " ." BTS BTS : 03 03 04

." : "

BTS 02 03 . BTS

BTS

63

. : BTS .

.

:

006 "" "" ) (BTS . : " 12 ."

." .

" " : "

.

BTS

73

.

BTS

.

" " BTS : "

BTS

-- " .

. " : BTS

BTS : BTS Acquisition . Nominal .

BTS

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. . . . BTS . .

.- Propagation models & Model Tuning - Frequency Planning - RF Planning - Capacity and coverage planning - Indoor planning ... -

) ( BTS Implementation :

BTS

93

2 M ...

-

. .

: AC DC POWER -

BTS

04

BTS ) 2M ( HDSL

-

. . .

6 : ) . . . ( -

.

BTS

14

. .

: -

. .

BTS : BTS 002 . BTS 002 . BTS 002 :

BTS

24

. : . : BTS .

BTS : BTS : . : . BTS : . BTS : . . 61 BTS 0074 3 .

BTS

34

BTS .

:

" ."

BTS

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