Multiplex communications – Wide area network – Packet switching
Patent
1995-03-28
1997-10-14
Chin, Wellington
Multiplex communications
Wide area network
Packet switching
370 601, 3701001, 34082506, 455 42, H04J 324, H01H 100
Patent
active
056779054
ABSTRACT:
An access subnetwork provides broadcast access transport as well as selective allocation of resources for interactive communications sessions dedicated to individual end users. The access subnetwork has specified broadcast and interactive service interfaces, both for communications to and from an information provider and for communication to and from customer premises equipment. An Access Subnetwork Controller provides a single point of control contact within the access subnetwork. Any other subnetwork (typically an element of a higher level control subnetwork) needing a control function in the access subnetwork always sends the request for that function to the Access Subnetwork Controller. The primary responsibility of the Access Subnetwork Controller is to control resources, provide requested resources and monitor the use of resources within in the realm of the access subnetwork. The Access Subnetwork Controller functions essentially in a similar manner to provide every type of requested connection, whether the connection is for broadcast, pay-per-view or Interactive Multimedia Television (IMTV). Specifically, the Access Subnetwork Controller reserves and enables access subnetwork resources for a particular user connection and reports connections back to higher level control elements.
REFERENCES:
patent: 5247347 (1993-09-01), Litteral et al.
patent: 5481542 (1996-01-01), Logston et al.
patent: 5541917 (1996-07-01), Farris
Amin-Salehi Bahman
Arthur Ulric E.
Bigham John A.
Brenner Greg
Clark Douglas
Bell Atlantic Network Services Inc.
Bell Communications Research Inc.
Carman Melissa Kay
Chin Wellington
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