Multi-user access system

WiMax technology

PURPOSE

The system of wideband wireless access is intended for creation of wireless “point-to-multipoint” networks and for providing integrated services: high-speed Internet access and communication services.

ADVANTAGES

Stable communication under conditions of compact urban development.
Flexible traffic distribution among subscribers.
Guaranteed support of VOIP technology.
Compatibility with the equipment of other firms.
Simplicity of expansion.
Remote control capability.

COMPONENTS

Base station (BS)
Subscriber station (SS)

TECHNICAL DATA

Quantity	Base station	Subscriber station
Standard	IEEE802.16d	IEEE802.16d
Chip set	Fujitsu MB3550	Fujitsu MB3550
Frequency range, GHz	3.3-3.8	3.3-3.8
Technology	OFDM-256	OFDM-256
Frame length	4,5,8,10,12.5,20 ms	4,5,8,10,12.5,20 ms
Modulation	BPSK, QPSK, QAM-16, QAM-64	BPSK, QPSK, QAM-16, QAM-64
Spectrum width, �Hz	3.5	3.5
Duplex	time division duplex (�DD)	time division duplex (�DD)
Maximum output power, dBm	11	11
Maximum communication range, km	5	5
Antenna gain factor, dB	16	16
Number of SS’s working in a sector simultaneously	Up to 20	Up t� 20
Type of coding/rate of encoding	RS (Reed Solomon encoding)/ ½,¾, ⅔	RS (Reed Solomon encoding)/ ½,¾, ⅔
Interface	Ethernet 10/100 Base T, RS-232	Ethernet 10/100 Base T, RS-232
Throughput capacity (1BS-1SS)	12 �bit/sec	12 �bit/sec
Control	Web-console, telnet, tcp/udp client	Web-console, telnet, tcp/udp client
Data encryption	DES, RC4	DES, RC4
QoS levels	UGS, RTPS, nRTPS, BE	UGS, RTPS, nRTPS, BE
Supply voltage, V	220	220
Power consumption, W	not more than 40	not more than 25
�ass, kg	not more than 5	not more than 3
Measurements, mm	260x290x80	260x290x80
Outdoor service conditions: ambient air temperature relative humidity	on exposure to atmospheric condensation, hoarfrost, dew from –40 ^o� t� +60 ^o� up to 95% (at temperature +25 ^o�)

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