Transposed multi-channel switching

Details Transposed multi-channel switching Transposed multi-channel switching

1990-09-21

1992-08-04

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 951, H04Q 1104

Patent

active

051365782

ABSTRACT:
A synchronous time division multiplexing system for multi-channel calls involves dividing each frame into a first segment and a second segment each containing substantially the same number of time slots and dividing the number of channels of the multi-channel call into a first subset and a second subset each containing approximately the same number of channels. Thereafter, the first subset is assigned to the first segment of the first frame and the second subset to the second segment of the first frame. The invention involves in a first time switching stage transposing the first subset to the second segment of the first frame such that the channels within the first subset occupy eligible free slots and retain their relative order and transposing the second subset to the first segment of the next frame such that the channels within the second subset occupy eligible free slots and retain their relative order. The call subsets are thus transported during a single stage of time switching. By assigning the selected slots in each segment in an ascending order, the output samples of a call will appear in the proper order but will not be properly positioned in the frame. When the transposed subsets are likewise switched in a second time-switching stage, the call samples will be positioned properly in the frame. Thus, traversing an even number of time switches, from source to termination, guarantees both frames consistency and the desirable slot order.

REFERENCES:
patent: 4554658 (1985-11-01), Morten et al.
patent: 4686670 (1987-08-01), Kessels et al.
patent: 4713804 (1987-12-01), Servel et al.
patent: 4787081 (1988-11-01), Waters et al.
patent: 4912700 (1990-03-01), Maddern et al.
Roberts, J. W. and Hoang Van A., "Characteristics of Services Requiring Multi-Slot Connections and their Impact on ISDN Design", Proceedings of the fifth ITC Seminar, Lake Como, Italy, May 1987, pp. 97-115.
Roberts J. W., "A Service System with Heterogeneous User Requirements", Performance of Data Communications Systems and Their Applications, G. Pujolle (Ed.) North Holland (1981).
Kaufman, J. S., "Blocking in a Shared Resource Environment", IEEE Trans, on Com. vol. 29, No. 10, pp. 1474-1481 (1981).
Delbrouck, L. E. N., "On the Steady-State Distribution in a Service Facility Carrying Mixtures of Traffic with Different Peakedness Factors and Capacity Requirements", IEEE Trans. on Com. vol. 31, No. 11, pp. 1209-1221 (1983).
Beshai, M. E., "The Poissonian Spectrum Method for Treating a Loss System Serving Non-Poissonian Multi-Bit-Rate Traffic", IEEE InfocCom'89, Ottawa, Canada. pp. 1010-1018.
Beshai, M. E. and Manfield, D. R. "Multichannel Services: Performance of Switching Networks", Proc. ITC 12, Torino, Italy (1988) pp. 857-864.

Affiliated with

Also associated with

Rating

Transposed multi-channel switching does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transposed multi-channel switching, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transposed multi-channel switching will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-784769