GSM數位細胞式行動電話系統架構

BTS

BTS 2

BTS 3

Signaling

GSM 8.58

64kbps

TCH

GSM8.60

16kbps

Abis Interface

2 Mbps

2 Mbps

Signaling

SS#7

64kbps

TCH

GSM8.60

16kbps

BSC

TCE

MSC

Signaling

SS#7

64kbps

GSM8.60

TCH

16kbps

A Interface

2 Mbps

PSTN

ISDN

other

PLMN

GSM Network

Operator

B..F Interface

HLR

AUC

VLR

EIR

X.25

X.25

OMC

TDMA

Air interface(Um)

max. 124 carriers

(frequency Hopping)

900 MHz band

Bit rate 270.8 kbps

4.615 ms

AUC:Authentication center

BSC:Base station controller

BTS:Base transceiver station

DAI:Digital audio interface

EIR:Equipment identity register

MS

DAI

1

2

3

4

5

6

7

0

HLR:Home location register

ISDN:Integrated services digital

network

MS:Mobile station

MSC:Mobile switching center

OMC:Operation and maintenance center

TCE:Transcoding equipment

VLR:Visitor location register

PLMN:Public land mobile network

PSTN:Public switched telephone network

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