Traffic measuring device based on state transitions

Details Traffic measuring device based on state transitions Traffic measuring device based on state transitions

1978-10-06

1980-04-29

Brigance, Gerald

179 71R, H04M 336

Patent

active

042007712

ABSTRACT:
The invention described herein is a traffic measurement device, particularly applicable to telecommunication networks. The device is of the digital type and relies on state transitions caused by the origination and termination of calls. This type of measurement is not vulnerable to inaccuracies of traditional measuring systems, particularly those using scanning methods.
The device requires, theoretically, only three measuring leads common to all servers in the group under consideration, irrespective of the number of servers; one lead transmits a pulse at the time of seizure of a server, the other transmits a pulse at the time of release of a server, and the third transmits a pulse when all servers are busy. The last pulse is used for system initialization and for measurement of congestion.
The basic device integrates the server occupancy states over time by adding the number of scored busy servers in each state a number of times proportional to the duration of the state. The device also facilitates measurement of the variance of the carried traffic or load, which is required together with the mean to describe the characteristics of the traffic distribution such as peakedness or smoothness. Finally, by measuring the duration of congestion and noncongestion periods the device calculates the overflow and offered traffic.

REFERENCES:
patent: 3324241 (1967-06-01), Bachelet
patent: 3562436 (1971-02-01), Lutgenau
patent: 3601535 (1971-08-01), Heick
patent: 3691303 (1972-09-01), Davies
patent: 3868480 (1975-02-01), Murgio et al.
patent: 4085293 (1978-04-01), Karras

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