二哥大(CT2)系統介紹數位無線行動電話世界標準

STANDARD

Mobile Frequency

Range (MHz)

Multiple Access Method

Number of Channels

Channel Spacing

Modulation

Duplex Method

Bit rate

DIGITAL CORDLESS TELEPHONES/PCN

Cordless

Telephone 2

CT2/CT2+

DECT

Digital European

Cordless Telephone

Personal

Handy Phone

PHS

CT2:864-868

CT2+:930-931

940-941

TDMA/FDM

TDD

40

100 kHz

72kbps

TDMA/FDM

TDD

10

(12 users/ch)

1.152 Mbps

1.728 MHz

TDMA/FDM

TDD

384 kbps

PACS-L

TDMA/FDM

FDD

384 kbps

1895-1907

300

(4 users/ch)

300 kHz

192

(8users/ch)

300 kHz

RX:1930-1990

TX:1850-1910

GFS(BT=0.5

Gaussian Filter)

p/4 DQPSK

p/4 DQPSK

GFS(BT=0.5

Gaussian Filter)

1880-1900

Personal Access

Communication System

Cordless

Telephone 3

CT3

862-870

TDMA/FDM

TDD

1 MHz

640kbps

GFS(BT=0.5

Gaussian Filter)

8

(8 users/ch)

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