1.1 user needs
Major natural disasters emergency communication of recovery. When there is a major natural disaster, through emergency satellite channel can rent the way, and guarantee the portable satellite station and we have built is standing (or with China mobile group company host) area of information transmission between.
The provisional regional emergency communication within the demand, when individual transmission unreachable areas need temporary communication, can be made into portable satellite station equipment can provide 2 M circuit resources.
To realize the important task of the remote communication safeguard when voice, data, video transmission. When important meeting to protect, but through the portable satellite station to own many business interface or cooperate with extended to realize remote equipment voice, data and video transmission.
Business types
business
1.2 system
The project scale is a portable emergency satellite purchasing equipment, mainly for small as emergency command vehicle emergency transmission requirements, can provide 2 of 2 M capacity, able to transmit GSM voice service, Internet business, TV conference video; And the station can with I company has built the satellite master station and group company is standing for use with. According to the demands of the seller to the buyer provides the demands of their networking network scheme.
Portable emergency satellite station should use small volume, light weight, low power consumption equipment composition, the requirement can be a person can be carried, required to list a complete set of portable emergency satellite station all the equipment needed a few boxes of shipment, the weight of each box, box volume and ?
1.3 systems
Portable satellite station mainly by the following parts, can choose according to demand of different specifications:
Less than 1 m antenna; Used for satellite receiving signal.
Rf unit: used for subprime frequency conversion system and KU frequency band solid power amplifier.
LNB low noise filter: used for filtering signal noise.
Modem: all kinds of optimization module, used for demodulation and signal output.
1.4 system structure design
Portable emergency stand configuration a satellite modem and a Abis optimization equipment. Satellite to solve problems, each station voice and center, both configuration VoIP gateway equipment, telephone sets can be directly connected to the gateway, to realize the remote stand and center telephone. Portable stand configuration 1.0 meters portable antenna and 16 W amplifier.
The structure of the system is shown in the following figure
System structure schematic drawing
