Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2008-01-01
2008-01-01
Nguyen, Chau (Department: 2619)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S484000, C370S485000, C375S222000
Reexamination Certificate
active
10636432
ABSTRACT:
Methods and systems provide network access service for a subscriber by utilizing multiple asymmetric DSL modems per service point such that the available bandwidth is the aggregation of the multiple asymmetric DSL modems. One asymmetric DSL modem of a service point has a faster upload speed than download speed while another asymmetric DSL modem of the service point has a faster download speed than upload speed. The two asymmetric DSL modems are aggregated together at the service endpoint so that the service endpoint benefits from the upload and download bandwidth available from both asymmetric DSL modems. The two asymmetric DSL modems at one service point communicate with two asymmetric DSL modems aggregated at another service point to complete the exchange of data. The network access service using DSL connectivity may be made symmetric by providing one of the asymmetric DSL modems with an upload speed that is substantially the same as the download speed of the other asymmetric DSL modem, while the download speed of the one is substantially the same as the upload of the other.
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Anschutz Thomas
Wright Steven A.
AT&T Delaware Intellectual Property Inc.
Hartmann Kenneth R
Merchant & Gould
Nguyen Chau
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