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Wireless LAN (WLAN) Band Specifications

Cell phone market share 2001 pie chart - RF Cafe











Source: Strategy Analytics Inc. (chart by RF Cafe)



WLAN Spectral Masks (802.11a/b/g)
Wireless Spectrum Chart, by QRC Technologies




Network
Standard
IEEE 802.11b IEEE 802.11a ETSI BRAN
HiperLAN1
ETSI 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

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