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iBurst Wireless Broadband Network

The iBurst� service provides continuous, high-speed connectivity for the user to their corporate services and/or the Internet. As long as the user stays within the coverage area of the base station network they will be able to maintain this connection in an always-on mode. This means they can use the connection for business or leisure purposes wherever and whenever they want. They no longer need to hold off activities until they get to a location which provides connectivity (either wired or wireless).

The iBurst system makes the use of online services much more spontaneous and wide-spread. As the breadth of services available on the Internet expands to encompass all aspects of life, many of these services only achieve their full potential when they are available as soon as the need arises. An iBurst connected user can take advantage of such services as soon as they become applicable, not have to wait till they can get connected when the service may no longer be of value.

An iBurst network is a pure IP, end-to-end system built on two primary components:

Base stations are deployed by a network operator.
Wireless modems are used to access the network.

ArrayComm Intellicell Technology

iBurst is based on IntelliCell technology which was developed by ArrayComm Inc. based in San Jose California USA. IntelliCell�s fully adaptive smart antenna technology dynamically adjusts signal patterns to and from each subscriber, creating a �personal cell� for efficient delivery of voice or data services. These personal cells follow people as they move, reducing radio interference.

Without Adaptive Antennas

Unlike IntelliCell equipped-base stations, conventional base stations transmit energy in all directions. The result is that only a small fraction of the signal reaches the intended subscriber. The rest of the RF energy is wasted and generates noise that interferes with other users in the system. More recent techniques of �pointing� a signal to the intended user are hampered by the abundance of physical obstacles like buildings and trees that make such line-of-sight transmission impossible.

With Adaptive Antennas

With IntelliCell, each base station uses a small array of off-the shelf antennas coupled with ArrayComm�s sophisticated signal processing techniques to dynamically control radio signals between the base station and the user terminal. The signal processing selectively amplifies each user�s intended signal and rejects all unwanted signals, allowing greater numbers of users to share the spectrum. The result is a significant increase in capacity and coverage that leads to substantial reductions in the costs for infrastructure deployment, network operations, system maintenance and radio spectrum.

ArrayComm Intellicell Technology-Diagram

iBurst Desktop Modem The iBurst desktop modem adds the advantages of wireless portability to all the benefits of a fixed broadband connection. Similar in appearance to a traditional modem, it is mains powered, has a small, yet powerful antenna and offers the flexibility of both Ethernet and USB ports. It is therefore positioned as a replacement of wired broadband technologies, such as DSL and cable modem in the consumer market and ISDN and frame relay in the business market. Since it is basically an alternative to wired connections, fixed wireless is suitable for �fixed� computing devices, such as desktop PCs or laptop PCs that require no mobility.
iBurst Laptop Modem The iBurst laptop modem is a lightweight PCMCIA card with a small extending aerial, providing always on connectivity anywhere within the network coverage area, even at speeds in excess of 100 km/hr. Mobile broadband and cellular phone networks are similar in that their base stations are cell-structured and offer hand-over capability as users move from one cell to another. But unlike mobile phone networks, mobile broadband networks are purposely built for data transmission rather than voice.