Receiver design for implementing virtual upstream channels...

Details Receiver design for implementing virtual upstream channels... Receiver design for implementing virtual upstream channels...

2007-01-16

2007-01-16

Nguyen, Brian (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via frequency channels

C725S111000

Reexamination Certificate

active

09999793

ABSTRACT:
A method and apparatus for scheduling virtual upstream channels within one physical upstream channel is disclosed. A different MAP message is received by a receiver for each virtual upstream channel from that sent downstream. Where multiple upstream receivers are used, separate MAP messages can be sent for each receiver and consequently, each virtual upstream channel. The use of multiple upstream receivers is not necessary if the upstream receiver can change the upstream channel descriptors it is using per burst.

REFERENCES:
patent: 6650624 (2003-11-01), Quigley et al.
patent: 6728887 (2004-04-01), Dziekan et al.
patent: 2002/0064169 (2002-05-01), Gummalla et al.
patent: 2003/0002499 (2003-01-01), Cummings et al.
patent: 2003/0012223 (2003-01-01), Chappell et al.

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