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WiMax technology Multi-user access system 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, ÌHz | 3.5 | 3.5 | Duplex | time division duplex (ÒDD) | time division duplex (ÒDD) | 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 tî 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 Ìbit/sec | 12 Ìbit/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 | Ìass, 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 oÑ tî +60 oÑ up to 95% (at temperature +25 oÑ) | |
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