Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-07-12
2005-07-12
Nguyen, Chau (Department: 2661)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S486000
Reexamination Certificate
active
06917614
ABSTRACT:
A two-way cable network offering high-speed broadband communications delivered via virtual private networks over a multi-channel shared media system. Bi-directional transmission of packet to ATM cell based communications is established between a head end communication controller and a number of subscriber terminal units, whereby individual cells are prioritized and routed according to a virtual connection. Virtual connections are organized to support multiple virtual private networks in a shared media CATV system. The virtual private network to which a particular STU belongs is user selectable and has the flexibility of handling multi up/downstream channels with different MAC domains. The present invention can also handle non-ATM MAC domains via the same common ATM switch. To overcome the limited number of addresses inherent to common ATM switches, a mapping/remapping function is implemented in the port cards. Furthermore, downstream as well as upstream traffic are filtered at each STU. In one embodiment, information pertaining to downstream traffic is used to implement predictive scheduling in order to improve the timing associated with the request/grant cycle. In another embodiment, a user has the ability to select a quality of service that best suits the needs of the current application. In a further embodiment, the scheduling function is associated with each of the receivers in order to provide improved scalability.
REFERENCES:
patent: 5963557 (1999-10-01), Eng
patent: 6028860 (2000-02-01), Laubach
patent: 6081533 (2000-06-01), Laubach
patent: 6137793 (2000-10-01), Gorman
patent: 6467091 (2002-10-01), Lin
patent: 6490727 (2002-12-01), Nazarathy et al.
patent: 0695092 (1996-01-01), None
Laubach, M., “To Foster Residential Area Broadband Internet Technology, IP Datagrams Keep Going, and Going, and Going”, Computer Communications, vol. 19, No. 11, Sep. 1, 1997, pp. 867-875.
Rooney, S., et al, The Tempest: A Framework For Safe, Resource-Assured, Programmable Networks, IEEE Communication Magazine, vol. 25, No. 10, Oct. 1, 1998, pp. 42-53.
Gordon Paul A.
Helton Sanford L.
Laubach Mark E.
Nichols Kathleen M.
Raissinia Alireza
Arris International, Inc.
Nguyen Chau
Pizarro Ricardo
LandOfFree
Multi-channel support for virtual private networks in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-channel support for virtual private networks in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-channel support for virtual private networks in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3421850