The IPSTAR network configuration is based on Gateway STAR
topology. A user terminal receives and transmits signals from/to
a Beam, which connects with a gateway. The gateway, in turn,
connects to other networks such as Internet backbone, telephone
network, corporate headquarters, or other IPSTAR Gateways. Most
countries under IPSTAR's service would have one or multiple
Gateways. This allows efficient integration of users into
terrestrial networks for various applications. There are a total
of 18 gateways planned for IPSTAR services. IPSTAR's Modulation
and Coding technology provides an efficient use of RF power and
bandwidth, allowing a high and flexible digital transmission
rate, which enables the use of small antennas and transmitters.