Full-service broadband cable modem system

Details Full-service broadband cable modem system Full-service broadband cable modem system

2007-03-20

2007-03-20

Levitan, Dimitry (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via frequency channels

Reexamination Certificate

active

10122828

ABSTRACT:
A method and system are disclosed for enabling full-service communications between a full-service cable modem termination system (fsCMTS) and a plurality of full-service cable modems (fsCMs) for a conventional two way hybrid fiber-coax (HFC) cable television network. Full-service communications include data, voice and video. Video includes broadcast quality MPEG-2 transport packet streams and Internet protocol media streams. A multi-channel full-service media-access-control (fsMAC) coordinates the access to the shared upstream and downstream channels. Several MAC management messages are defined to enable a multi-channel full-service MAC domain to facilitate sharing of an arbitrary number of channels and to enable packet-by-packet true seamless channel change. Multiple upstream channels can be used in various ways to best optimize the use of the spectrum for meeting the quality-of-services needed by different services.

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