Dynamic bandwidth allocation mechanism between circuit slots and

Details Dynamic bandwidth allocation mechanism between circuit slots and Dynamic bandwidth allocation mechanism between circuit slots and

1986-08-04

1988-08-09

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 85, H04J 326

Patent

active

047633212

ABSTRACT:
System for dynamically allocating circuit slots in frames which are used for exchanging bits between users connected to nodes of a communication network linked by means of medium links having transmit and receive interfaces, the frames are delimited by flags and divided into bit slots which may be used for synchronous circuit flow or asynchronous packet flow. Each node changes the flags preceding at least one frame in which at least one slot is to be added or deleted to a value including a first number of delimiting bits and a second number of bits which are coded to indicate that slot(s) is (are) to be added or deleted and the corresponding slot number sends call control packets which are propagated through the network nodes. The packets include call control information, routing information and indicating the circuit user slot number(s) to be added or deleted on specified link interfaces, and receive the call control packets and the modified flags for adding or deleting circuit user slot(s) in subsequent frames depending upon the flag value.

REFERENCES:
patent: 4482999 (1984-11-01), Janson et al.
patent: 4549291 (1985-10-01), Renoulin et al.
National Telecommunications Conference, Dec. 1-3, 1975, New Orleans, La., vol. 2, pp. 42-12 to 42-17, IEEE, New York, U.S.; Coviello et al, "Integration of Circuit/Packet Switching by a Senet (Slotted Envelope Network) Concept".
The Second International Conference on Computer Communication, Aug. 12-14, 1974, Stockholm, SE, pp. 507-515, K. Kummerle, SE, "Multiplexor Performance for Integrated Line and Packet Switched Traffic".
Proceedings of the International Switching Symposium, May 7-11, 1984, Florence, IT, Session 42B, Paper 2, pp. 1-7, North-Holland Publishing Co., Amsterdam, NL; C. Fruchard et al, "A Hybrid Switched Open Network for Voice and Data Services".

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