Wideband node in a cable TV network

US20050283816A1Inactive Publication Date: 2005-12-22XTEND NETWORKS

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[0021] A new and novel node device is disclosed which enables transmission of a wideband signal consisting of the legacy spectrum of about 5-860 MHz as well as a new downstream spectrum of about 1000-2000 MHz and a new upstream spectrum of about 2000-3000 MHz, which enables transfer of data in the upstream direction employing multiple upstream bands without making substantial investment in upstream physical node splitting thus providing networking services to residential subscribers, as well as to small and medium-sized businesses (SMB).

[0022]FIG. 1 illustrates a simplified structure of an existing CATV network. Signals from a network head-end 8 are transmitted and received via the fiber trunk section 10 of the network to a conventional CATV node device 12. The head-end may include one or more DOCSIS or other Cable Modem Termination System (CMTS) devices 9. The CATV node device 12 is connected to network subscribers 32 via one or more ports where each port connected to a distinct d...

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Abstract

A novel node device enables transmission of a wideband signal, in compliance with various acceptable transmission standards and protocols. The signal consists of the legacy spectrum of about 5-860 MHz as well as a new downstream spectrum of about 1000-2000 MHz and a new upstream spectrum of about 2000-3000 MHz or about 930-1100 MHz. The novel device enables transfer of additional data in the upstream direction employing multiple upstream bands without making substantial investment in upstream physical node splitting, thus providing networking services to residential subscribers as well as to small and medium-sized businesses (SMB), which may operate under existing DOCSIS protocols and controlled by standard DOCSIS routers (CMTSs).

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CROSS REFERENCE TO RELATED APPLICATIONS [0001] The present application is generally related to co-pending PCT application No. PCT / IL00 / 00655 entitled SYSTEM AND METHOD FOR EXPANDING THE OPERATIONAL BANDWIDTH OF A COMMUNICATION SYSTEM, filed Nov. 16, 2000, which is incorporated herein by reference.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates generally to cable television (“CATV”) distribution networks. More particularly, the present invention relates to a node in a HFC infrastructure-based CATV network utilized as an advanced interfacing device between the fiber optic segment and the coaxial segment of the CATV infrastructure. [0004] 2. Discussion of the Related Art [0005] In CATV distribution networks based on a Hybrid Fiber Coax (HFC) plant infrastructure, the fiber optic trunk and the coaxial trunk of the network are connected via specific devices typically referred to as fiber nodes. In the downstream, the fiber node receives o...

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Application Information

Patent Timeline

22 Dec 2005

Publication

US20050283816A1

CPC: H04N7/102; H04N7/17309; H04N7/104

Inventors: WEINSTEIN, HILLEL; STRULL, YESHAYAHU