Gilat Satellite Networks Ltd.

Nitay Argov

Oren Markovitz

Yoseph Hecht

Zohar Kanfi

Tzvika Meiri

Shay Mori

Tomer Chavusha

Some applications that cannot operate over a non-reliable delivery service may operate sufficiently well over less than a completely guaranteed delivery service. Such an application may perform relatively well even if some transmitted data is not delivered, as long as the application has information regarding which receiving entities received what part of the data. In a point-to-multipoint system, data may be transmitted from a source node to a plurality of destination nodes using a plurality of multicast datagrams. Methods are presented herein for efficiently enabling the source node to determine for each of the plurality of destination nodes which multicast datagrams were successfully received. Also presented are methods for compressing data transmitted from the source node to the destination nodes, wherein a compression dictionary is transmitted from the source node to the destination node using multicast datagrams.

Compression with multicast dictionary

In a satellite communication system comprising at least a hub and a plurality of terminals, at least one terminal may include a cache for storing data objects. The cache may be based on a detachable memory device that may be inserted to or removed from the terminal at any given time, including after the terminal is deployed. Aspects are directed to preventing a prefetching of objects already stored in a cache of a remote terminal. In some embodiments, an efficient multicasting of content to terminals over an adaptive link may occur in a manner which may benefit terminals comprising a cache while not affecting or minimally affecting the performance of terminals that may not include a cache.

Decentralized caching system

In a satellite communication network, comprised of a central hub and a plurality of remote terminals, a multi-layered return channel (inbound) bandwidth design, for at least the purpose of mitigating rain fade effects. In addition, an allocation algorithm for allocating timeslots against capacity requests from remote terminals over a multi-layered return channel bandwidth design on a burst-by-burst basis.

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Tel Mond, Israel

Nitay Argov