Congestion control in signalling network of common channel signa

Details Congestion control in signalling network of common channel signa Congestion control in signalling network of common channel signa

1996-08-29

2000-03-14

Pham, Chi H.

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

370522, 379230, H04Q 1104, H04M 700

Patent

active

06038218&

ABSTRACT:
For each of a plurality of signal processors accommodating respective shares of signalling links to be controlled by a signalling point, a congestion-condition level is determined by comparing an overload condition of a central controller and the number of processed signals with their respective threshold values. Any signalling link, whose priority is lower than the priority corresponding to the determined congestion-condition level, is inhibited for use, and a signalling link accommodated in another signal processor is substituted for the inhibited signalling link. In determining the congestion-condition level, a decision is made at predetermined intervals of time as to whether the condition is a congested condition or a congestion cleared condition; if it is a congested condition, the congestion-condition level is raised, and if it is a congestion cleared condition, the congestion-condition level is lowered.

REFERENCES:
patent: 5084816 (1992-01-01), Boese et al.
patent: 5268895 (1993-12-01), Topper
patent: 5291477 (1994-03-01), Liew
patent: 5541987 (1996-07-01), Topper et al.
patent: 5650998 (1997-07-01), Angenot et al.
"An investigation of congestion dynamics in CCS networks during STP processor overload", Northcote, IEEE International Conference on Communications (Seattle), Part 1 vol. 1, Jun. 1995, pp. 127-131, especially top left hand column of p. 128.

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