| 摘要 |
<p num="1"><br/><br/><br/>A method and system is disclosed for enabling full-service communications <br/>between a full-service cable modem termination system (fsCMTS) and a plurality <br/>of full-service cable modems (fsCM''s) for a conventional two-way hybrid fiber-<br/>coax (HFC) cable television network. Full-service communications include data, <br/>voice and video. Video includes broadcast quality MPEG-2 transport streams and <br/>Internet protocol media streams. A multi-channel full-service media-access-<br/>control (fsMAC) coordinates the access to the shared upstream and downstream <br/>channels. At lease two downstream channels and at least two upstream channels <br/>are provided. Several MAC management messages are defined to enable multi-<br/>channel full-service MAC domain to be defined and to enable packet-by-packet <br/>true seamless channel change. Using the novel techniques described in this <br/>invention, multiple upstream channels can be used in various ways to best <br/>optimize the use of the spectrum for accommodating various quality-of-service <br/>needs of different type of services.<br/>
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