Digital Cellular Phones

Matrix of Worldwide Wireless Telecommunication Standard Characteristics

Digital Cellular Telephone
Standard
IS-54/-136 North American Digital Cellular
IS-95 North American Digital Cellular
GSM
Global System for Mobile Communications
DCS 1800
PDC
Personal Digital Cellular
Mobile Frequency Range (MHz)
Rx: 869-894 Tx: 824-849
Rx: 869-894 Tx: 824-849
Rx:925-960 Tx:880-915
Rx: 1805-1880 Tx: 1710-1785
Rx: 810-826 Tx: 940-956 Rx: 1429-1453 Tx: 1477-1501
Multiple Access Method
TDMA/ FDM
CDMA/ FDM
TDMA/ FDM
TDMA/ FDM
TDMA/ FDM
Duplex Method
FDD
FDD
FDD
FDD
FDD
Number of Channels
832 (3 users /channel)
20(798 users /channel)
124 (8 users /channel)
374 (8 users /channel)
1600 (3 users /channel)
Channel Spacing
30kHz
1250kHz
200kHz
200kHz
25kHz
Modulation
(N/a/4 DQPSK)
QPSK /OQPSK
GMSK (0.3 Gaussian Filter)
GMSK (0.3 Gaussian Filter)
(N/A/4 DQPSK)
Channel Bit Rate
48.6 kb/s
1.2288 Mb/s
270.833 kb/s
270.833 kb/s
42 kb/s

Reference: Philips Semiconductors (Innovation in Wireless Communication)

 

   
Copyright © 2010 The Center for Study of Wireless Electromagnetic Compatibility, University of Oklahoma. All Rights Reserved.