| Analog Cellular Telephones | Digital Cellular Telephone | |||||||
|---|---|---|---|---|---|---|---|---|
| Standard | AMPS Advanced Mobile Phone Service |
TACS Total Access Communication System |
NMT Nordic Mobile Telephone |
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 | ETACS: Rx:916-949 Tx:871-904 NTACS: Rx:860-870 Tx:915-925 | NMT-450: Rx:463-468 Tx:453-458 NMT-900: Rx:935-960 Tx:890-915 | 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 | FDMA | FDMA | FDMA | TDMA/ FDM | CDMA/ FDM | TDMA/ FDM | TDMA/ FDM | TDMA/ FDM |
| Duplex Method | FDD | FDD | FDD | FDD | FDD | FDD | FDD | FDD |
| Number of Channels | 832 | ETACS:1240 NTACS:400 | NMT-450: 200 NMT-900: 1999 | 832 (3 users /channel) | 20(798 users /channel) | 124 (8 users /channel) | 374 (8 users /channel) | 1600 (3 users /channel) |
| Channel Spacing | 30kHz | ETACS: 25kHz NTACS: 12.5kHz | NMT-450: 25kHz NMT-900: 12.5kHz | 30kHz | 1250kHz | 200kHz | 200kHz | 25kHz |
| Modulation | FM | FM | FM | ( /4 DQPSK) |
QPSK /OQPSK | GMSK (0.3 Gaussian Filter) | GMSK (0.3 Gaussian Filter) | (/4 DQPSK) |
| Channel Bit Rate | n/a | n/a | n/a | 48.6 kb/s | 1.2288 Mb/s | 270.833 kb/s | 270.833 kb/s | 42 kb/s |
| Analog Cordless Telephones | Digital Cordless Telephone | |||||
|---|---|---|---|---|---|---|
| Standard | CT0 Cordless Telephone 0 |
JCT Japanese Cordless Telephone |
CT1/CT1+ Cordless Telephone 1 |
CT2/CT2+ Cordless Telephone 2 |
DECT Digital European Cordless Telephone |
PHS Personal Handy Phone System |
| Mobile Frequency Range (MHz) | 2/48(U.K.) 26/41(France) 30/39(Australia) 31/40(The Netherlands, Spain) 46/49(China, S. Korea, Taiwan, U.S.A.) 48/74,45/48 (China) | 254/380 | CT1: 914/960 CT1+: 885/932 | CT2: 864/868 CT2+: 944/948 | 1880-1990 | 1895-1918 |
| Multiple Access Method | FDMA | FDMA | FDMA | TDMA/ FDM | TDMA/ FDM | TDMA/ FDM |
| Duplex Method | FDD | FDD | FDD | TDD | TDD | TDD |
| Number of Channels | 10, 12, 15, 20 or 25 | 89 | CT1: 40 CT1+: 80 | 40 | 10(12 users /channel) | 300 (4 users /channel) |
| Channel Spacing | 17, 20, 25 or 40 kHz | 12.5 kHz | 25kHz | 100kHz | 1.728MHz | 300kHz |
| Modulation | FM | FM | FM | GFSK (0.5 Gaussian Filter) | GFSK (0.5 Gaussian Filter) | (/4 DQPSK) |
| Channel Bit Rate | n/a | n/a | n/a | 72 kb/s | 1.152 Mb/s | 384 kb/s |
| Wireless Data (WAN/LAN) | Personal Communication Systems | |||||
|---|---|---|---|---|---|---|
| Standard | CDPD Cellular Digital Packet Data (WAN) |
RAM - Mobitex (WAN) | Ardis- RD-LAP (WAN) | IEEE 802.11 Wireless LAN | High Tier Standards | Low Tier Standards |
| Mobile Frequency Range (MHz) | Rx:869-894 Tx:824-849 | (North America) Rx:935-941 Tx:896-902 (Europe/Asia) 403-470 | Rx:851-869 Tx:806-824 | (North America /Europe) 2400-2483 (Japan) 2470-2499 | Rx: 1930-1990 Tx: 1850-1910 | Rx: 1930-1990 Tx: 1850-1910 |
| Multiple Access Method | FDMA | TDMA/FDM | TDMA/FDM | CSMA | PCS TDMA (Based on IS-136 cellular) PCS CDMA (Based on IS-95 cellular) PCS 1900 (Based on GSM cellular) Wideband CDMA |
PACS (Based on PHS cordless) DCT-U (Based on DECT cordless) Composite CDMA/TDMA |
| Duplex Method | FDD | FDD | FDD | TDD | " | " |
| Number of Channels | 832 | 480 | 720 | FHSS:79 DSSS:7 | " | " |
| Channel Spacing | 30kHz | 12.5kHz | 25kHz | FHSS:1MHz DSSS:11MHz | " | " |
| Modulation | GMSK (0.5 Gaussian Filter) | GMSK (0.3 Gaussian Filter) | FSK (2 and 4 Level) | FHSS: GFSK (0.5 Gaussian Filter) DSSS: DBPSK (1MB/s) DQSK (2MB/s) | " | " |
| Channel Bit Rate | 19.2 kb/s | 8 kb/s | 19.2 kb/s | 1 or 2 MB/s | " | " |
