H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
344/25
H04Q 11/04 (2006.01) H04L 12/64 (2006.01)
Patent
CA 1250935
ABSTRACT System to be used for dynamically allocating circuit slots in the 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, said frames being delimited by flags and divided into bit slots which may be devoted to synchronous circuit flow and to asynchronous packet flow. It comprises in each node means for changing 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(s); means for sending call control packets which are propagated through the network nodes, comprising call control information , routing information and indicating the circuit user slot number(s) to be added or deleted on specified link interfaces, and means receiving the call control packets and the changed flags for adding or deleting circuit user slot(s) in the subsequent frames depending upon the flag value. Figure 11
505860
Calvignac Jean
Secondo Pierre
Barrett B.p.
International Business Machines Corporation
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