ATM multiplexing system

Details ATM multiplexing system ATM multiplexing system

1993-12-28

1995-08-29

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

H04J 324

Patent

active

054467381

ABSTRACT:
An ATM multiplexing system comprising a plurality of ATM cell input circuits, each of which stores a cell stream incoming from a corresponding input stage and absorbs and removes instantaneous displacement of the incoming cells, a priority encoder for receiving simultaneously FIFO storage level information from the ATM cell input circuits and determining a priority for processing first an input stage with the largest number of stored cells, the FIFO storage level information including the number of the cells stored in the ATM cell input circuits, a link table processing circuit for receiving output headers from the priority encoder and input port numbers corresponding to the received headers and outputting changed headers corresponding to the received headers, an ATM cell output circuit for receiving the changed headers and link information from the link table processing circuit, determining a cell transmission order according to a service priority and performing a header assembling function for perfect cell production, a cell transmission controller for transmitting output headers from the ATM cell output circuit and the corresponding payloads and controlling the above-mentioned components, and a clock signal control circuit for generating a clock signal to control timing of the above-mentioned components.

REFERENCES:
patent: 4947388 (1990-08-01), Kuwahara et al.
H. Jonathan Chao, "Design of Transmission and Multiplexing System for Broadband Packet Network," IEEE Journal on Selected Area in Communications, vol. 6, No. 9, Dec., 1988.
Wen-Tsuen Chen et al., "A New ATM Multiplexer With Dynamic Scheduling," Proceedings of International Symposium On Communications, Dec. 1991, pp. 136-139.
R. Rocha et al., "A Distributed Merger for ATM," International Conference on Integrated Broadband Services & Networks, Oct. 1990, pp. 253-257.
T. Wu, et al., "Dynamic TDM: A Packet Approach To Broad Band Networking", International Conference On Communications, Jun., 1987, pp. 1585-1592.
S. H. Lee, "An Integrated Transport Technique For Circuit and Packet Switched Traffic", Proc. INFOCOM, 1988, pp. 110-118.

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