Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Patent
1997-01-09
2000-03-21
Patel, Ajit
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
370370, 370399, 370431, H04J 324
Patent
active
060410507
ABSTRACT:
The method of the present invention achieves a desired assignment of the physical cell slots comprising a time division multiplexed frame to embedded channels by ascribing an element address to uniquely identify each of the cell slots of the frame. A logical assignment of the cell slots of the frame is made to the embedded channels to be established between one or more specific data sources and sinks. A transform chosen to produce a particular distribution of assignments is then applied to the set of element addresses to produce a set of cell slot addresses, each of which uniquely identifies each cell slot of the frame by its relative physical position within the frame. Each of the element addresses (used to logically associate a cell slot with a channel to be established) is uniquely linked on a one-to-one basis with one of the set of cell slot addresses (used to identify relative position of a cell slot within the frame) through the predetermined transform. This linking of element addresses to cell slot addresses results in a mapping of the channels to cell slots based on their ordered physical position within the frame. The mapping characteristics are directly a function of the nature of the transform, which can be any predetermined transform designed to achieve desired mapping characteristics. The cell slot addresses are then mapped to position numbers as a function of their relative numerical values, thus completing the mapping of cell slots to channels by their ordinal positions within the frame.
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Circuit Path Network Systems Corporation
Patel Ajit
Strawbrich Robert C.
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