|
WIRELESS
COMMUNICATIONS
BANDS
| Analog
Cellular Telephones |
| Standard |
AMPS/NAMPS
Narrow Band Advanced
Mobile Phone System |
TACS
Total Access
Communication System |
NMT
Nordic Mobile
Telephone |
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 |
Multiple
Access
Method |
FDMA |
FDMA |
FDMA |
| Duplex
Method |
FDD |
FDD |
FDD |
| Number
of Channels |
AMPS:
832
NAMPS: 2496 |
ETACS:
1240
NTACS: 400 |
NMT-450:
200
NMT-900: 1999 |
| Channel
Spacing |
AMPS:
30 kHz
NAMPS: 10 kHz |
ETACS:
25 kHz
NTACS: 12.5 kHz |
NMT-450:
25 kHz
NMT-900: 12.5 kHz |
| Modulation |
FM |
FM |
FM |
| Channel
Bit Rate |
n/a |
n/a |
n/a |
| Digital
Cellular Telephones |
| Standard |
TDMA
IS-54/-136
Time Division Multiple Access |
CDMA
IS-95
Code Division Multiple Access |
GSM
Global System for Mobile Communication |
DCS
1800/DCS 1900
Digital Communication System |
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 |
30
kHz |
1250
kHz |
200
kHz |
200
kHz |
25
kHz |
| Modulation |
p/4
DQPSK |
QPSK/OQPSK |
GMSK
(0.3 Gaussian Filter) |
GMSK
(0.3 Gaussian Filter) |
p/4
DQPSK |
| Channel
Bit Rate |
48.6
kb/s |
1.2288
Mb/s |
270.833
kb/s |
270.833
kb/s |
42
kb/s |
| Analog
Cordless Telephones |
| Standard |
CT0
Cordless Telephone 0 |
CT1/CT1+
Cordless Telephone 1 |
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 (China) |
CT1:
914/960
CT1+: 885/932 |
Multiple
Access
Method |
FDMA |
FDMA |
| Duplex
Method |
FDD |
FDD |
| Number
of Channels |
10,
12, 15, 20 or 25 |
CT1:
40
CT1+: 80 |
| Channel
Spacing |
1.7,
20, 25 or 40 khZ |
25
kHz |
| Modulation |
FM |
FM |
| Channel
Bit Rate |
n/a |
n/a |
| Digital
Cordless Telephones |
| Standard |
CT2/CT2+
Cordless Telephone 2 |
DECT
Digital Enhanced Cordless Telephone |
PHS
Personal Handy Phone System |
Mobile
Frequency
Range (MHz) |
CT2:
864/868
CT2+: 944/948 |
1880-1900 |
1895-1918 |
Multiple
Access
Method |
TDMA/FDM |
TDMA/FDM |
TDMA/FDM |
| Duplex
Method |
TDD |
TDD |
TDD |
| Number
of Channels |
40 |
10
(12 users/chanel) |
300
(4 users/channel) |
| Channel
Spacing |
100
kHz |
1.728
MHz |
300
kHz |
| Modulation |
GFSK
(0.5 Gaussian Filter) |
GFSK
(0.5 Gaussian Filter) |
p/4
DQPSK |
| Channel
Bit Rate |
72
kb/s |
1.152
Mb/s |
384
kb/s |
| Wireless
Data |
| Standard |
CDPD
Cellular Digital
Packet Data (WAN) |
Bluetooth |
IEEE
802.11b |
Mobile
Frequency
Range (MHz) |
Rx:
869-894
Tx: 824-849 |
2400-2497
availability differs within
this range per country
(global frequency range
2471-2475 in all countries) |
(North
America/Europe)
2400-2483
(Japan)
2470-2499 |
Multiple
Access
Method |
FDMA |
Frequency
hopping |
CSMA |
| Duplex
Method |
FDD |
TDD |
TDD |
| Number
of Channels |
832 |
79
(or 23 in
Japan, Spain, France) |
FHSS:
79
DSSS: 11 |
| Channel
Spacing |
30
kHz |
1 MHz |
HFSS:
1 MHz
DSSS: 11 MHz |
| Modulation |
GMSK
(0.5 Gaussian Filter) |
GFSK
(0,5 Gaussian Filter) |
HFSS:
GFSK
(0.5 Gaussian Filter)
DSSS: DBPSK (1/MB/s)
DQPSK (2 MB/s) |
| Channel
Bit Rate |
19.2
kb/s |
1
Mb/s symbol rate
721 kb/s raw data
56 kb/s return |
1 or
2 MB/s |
| Personal
Communication Systems |
| Standard |
High
Tier Standards |
Low
Tier Standards |
Mobile
Frequency
Range (MHz) |
Rx:
1930-1990
Tx: 1850-1910 |
Rx:
1930-1990
Tx: 1850-1910 |
Multiple
Access
Method |
-
PCS
TDMA
(based on IS-136 cellular)
-
PCS
CDMA
(based on IS-95 cellular)
-
PCS
1900
(based on GSM cellular)
Wideband CDMA
|
|
|
|
|
WIRELESS
LAN (WLAN) SPECS
Network
Standard |
IEEE
802.11b |
IEEE
802.11a |
ETSI
BRAN
HiperLAN1 |
ESTI
BRAN
HiperLAN2 |
Access
Method |
CSMA/CA,
SSMA |
CSMA/CA |
TDMA/EY-NPMA |
TDMA/TDD |
| Modulation |
CCK
(8 complex
chip spreading) |
64
QAM-OFDM
16 QAM-OFDM
QPSK-OFDM
BPSK-OFDM |
GMSK/FSK |
64
QAM-OFDM
16 QAM-OFDM
QPSK-OFDM
BPSK-OFDM |
Data
Rate
(Mbits/s) |
1,
2, 5.5 and 11 |
6,
9, 12, 18, 24,
36, 48 and 54 |
23
(HBR)
1.4 (LBR) |
6,
9, 12, 18, 27,
36, 48 and 54 |
Frequency
Band
(MHz) |
2,400
to 2,483.5 |
5,150
to 5,250
5,250 to 5,350
5,725 to 5,825 |
5,150
to 5,300
limited in some
countries to
5,150 to 5,250 |
5
GHz bands
currently under
study |
| Channelization |
25/30
MHz spacing
3 channels |
20
MHz
channel spacing |
23.5294
MHz (HBR)
3 channels in
100 MHz and
5 channels in
150 MHz
1.4 MHz (LBR) |
20
MHz channel
spacing
4 channels in
100 MHz |
Transmit
Power |
1,000
mW EIRP
100 mW EIRP
10 mW/MHz EIRP |
5,150
to 5,250
10 mW/MHz
200 mW EIRP in
20 MHz channel
5,250 to
5,350
1 W EIRP
5,725 to
5,825
4 W EIRP
|
Three
different
classes of power
levels depending
on country
administration
1 W EIRP
100 mW EIRP
10 mW EIRP
|
Power
limits
currently under
study |
|
|
