Scheme for error control on ATM adaptation layer in ATM networks

Details Scheme for error control on ATM adaptation layer in ATM networks Scheme for error control on ATM adaptation layer in ATM networks

1995-12-28

2000-05-09

Grant, William

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

714701, 714702, 714711, 714760, 714752, 714776, 370 941, H03M 1300

Patent

active

060618205

ABSTRACT:
A scheme for error control on AAL in ATM networks capable of realizing a reliable communication with a high throughput and a low latency. On AAL, the segmented data are sequentially written into each column of a matrix shaped data region in an interleaver, while variably setting a last column of the data region in the interleaver. Then, an error control code for the data up to the last column in each row of the data region in the interleaver is obtained and written into a corresponding location within a matrix shaped error control code region in the interleaver. The contents of each column of the data region and the error control code region in the interleaver are then read out, and a prescribed header/trailer is attached to a prescribed number of columns of the data and/or the error control codes read out from the interleaver to form a data unit. Each data unit is sequentially given to a lower layer such that data units are transmitted in forms of ATM cells through the ATM network and an error correction using the error control codes can be carried out for the data at a receiving side when an error occurs during data transfer.

REFERENCES:
patent: 5572532 (1996-11-01), Fimoff et al.
Esaki et al., "Evaluation of High Speed Multimedia Communication Architecture in ATM Networks", IEICE Trans. Commun., vol. E77-B, No. 11, pp. 1407-1420, (1994).
Yamazaki, "Status Report on AALI&2 (AAL Types 1 and 2) For video Signal Transport", Working Document TD/27 (Rev.), (13-2)-E, (Mar. 1994).
Matsuzaki et al., "A Study of Error Correction Method With The Alignment Between ATM Cell And MPEG-2 Transport Packet", The 1994 IEICE Spring Conference, B-853, pp. 3-348, (1994).
ITU-T Recommendation I.363, "B-ISDN ATM Adaptation Layer (AAL) Specification", pp. 1-16, (Mar. 1993).
McAuley, "Reliable Broadband Communication Using A Burst Erasure Correcting Code", pp. 297-306, (1990).
Kanai et al., "Error Control Method in ATM Networks, FEC on AAL Type 5", The 1994 IEICE Spring Conference, B-786, p. 3-281, (1994).
Carle, "Error Control For Reliable Multipoing Communication In ATM Networks", pp. 33-37, (1994).

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