Broadband communication systems and methods using low and...

Details Broadband communication systems and methods using low and... Broadband communication systems and methods using low and...

2005-04-12

2005-04-12

Gelin, Jean (Department: 2681)

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

C455S003010

Reexamination Certificate

active

06879808

ABSTRACT:
Broadband data transmission systems and methods that provide point-to-multipoint broadcasting capability to implement Internet access and multimedia distribution services for a very large number of users. An exemplary system comprises a two-way communication link having at least one satellite, at least one user terminal that has two-way communication with the two-way communication link, and at least one gateway that has access to data and has two-way communication with the two-way communication link. The two-way communication link may comprise a low bandwidth two-way communication link, or a low bandwidth request link and high bandwidth data broadcast link. The high bandwidth link preferably broadcasts a wide area coverage beam to allows the requested information to be received by many terminals. The terminal and gateway may each include a cache. Software at the gateway operates to deliver requested data and related data to users using the user's request history and/or user profile. The requested (and related) data (such as a predetermined number of most-requested web pages) may be broadcast at predetermined intervals to simulate real-time broadcasts. Another exemplary system comprises a terrestrial communication link for communicating data requests, a satellite broadcast link for transmitting the requested data, at least one gateway having access to data that communicates with the terrestrial communication link and the satellite broadcast link, and at least one user terminal that communicates with the terrestrial communication link and the satellite broadcast link that caches the requested (and related) data transmitted by the satellite broadcast link. Broadband data transmission methods are also disclosed.

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