Explicit congestion notification for DOCSIS based broadband...

Details Explicit congestion notification for DOCSIS based broadband... Explicit congestion notification for DOCSIS based broadband...

2006-12-05

2006-12-05

To, Doris H. (Department: 2616)

Multiplex communications

Communication over free space

Repeater

C370S442000, C370S447000

Reexamination Certificate

active

07145888

ABSTRACT:
Satellite communications are carried out using the Data Over Cable Interface Specification (DOCSIS). Satellite modems are notified of upstream channel congestion by inserting a congestion notification message in a medium access protocol (MAP) message for the upstream channel. Specifically, the congestion notification message is inserted in an unused field of the MAP message, such as the explicit congestion notification (ECN) field. The MAP message can also carry other characteristics of the upstream channel, including priority threshold, multicast access burst availability, and available bandwidth.

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