US 7,606,188 B2
Explicit congestion notification for DOCSIS based broadband communication systems
Mark Dale, Laguna Hills, Calif. (US); David Hartman, Laguna Hills, Calif. (US); Dorothy Lin, Laguna Beach, Calif. (US); Rocco Brescia, Newport Coast, Calif. (US); Alan Gin, Corona Del Mar, Calif. (US); Ravi Bhaskaran, Irvine, Calif. (US); Jen-chieh Chien, Lake Forest, Calif. (US); and Adel Fanous, Irvine, Calif. (US)
Assigned to Broadcom Corporation, Irvine, Calif. (US)
Filed on Dec. 05, 2006, as Appl. No. 11/633,630.
Application 11/633630 is a continuation of application No. 10/420909, filed on Apr. 23, 2003, granted, now 7,145,888, filed on Dec. 05, 2006.
Claims priority of provisional application 60/374491, filed on Apr. 23, 2002.
Prior Publication US 2007/0147281 A1, Jun. 28, 2007
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/212 (2006.01)
U.S. Cl. 370—321  [370/442; 370/447] 4 Claims
OG exemplary drawing
 
1. A method of identifying a message collision in an upstream channel of a satellite based DOCSIS communications system, comprising:
generating, by a satellite gateway, a media access protocol (MAP) message having a plurality of fields, the generating including identifying a message collision between satellite modems in an unused explicit congestion notification (ECN) field of the MAP message,
wherein the ECN field (i) is a reserved field in a standard Data Over Cable Interface Specification 1.1 MAP message and (ii) includes at least one subfield.