Multiplex communications – Wide area network – Packet switching
Patent
1988-06-13
1990-01-02
Safourek, Benedict V.
Multiplex communications
Wide area network
Packet switching
370118, H04J 316
Patent
active
048918059
ABSTRACT:
A method and apparatus for assigning time slots in a frame of time slots used for time division multiplexing, the time slots being representable as a position within the frame, in which it is determined what quantity of the time slots are required to provide a needed amount of bandwidth. A random number generator (40) generates (92) a uniformly distributed random number which is scaled (94) to represent a position in the first portion of the frame. A first of the positions within the frame is assigned based upon the value of the randon number. The remaining positions are assigned by fitting (64) the remaining required positions to the available positions in the frame spacing them at approximately equally spaced intervals as available. This prevents bunching of the used time solts which would otherwise prevent dynamic allocation of large blocks of bandwidth in the frame without complete recalculation of the frame.
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Chin Wellington
Miller Jerry A.
Racal Data Communications Inc.
Safourek Benedict V.
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