Multiplex communications – Wide area network – Packet switching
Patent
1991-07-15
1994-05-31
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 79, H04J 324
Patent
active
053175700
ABSTRACT:
A multiplex-packet band learning system and method wherein management of the transmission band of a trunk suitable for an actual packet communication amount can be established to contribute to efficient multiplex packet communication. The number of communication packets per unit time for each medium pattern corresponding one of combinations of call terminal attributes is measured for the trunk interface of each exchange, a normal distribution of the numbers of communication packets in actual communication is estimated on the basis of the measured number of communication packets per unit time for each medium pattern, and its estimated value is updatingly held as index data of permission or prohibition of a new call registration. The number of communication packets in the actual communication is measured at a terminal interface so that a terminal band table for the terminal interface has packet rates at which the terminal has been so far communicated, mean and variance values of the past packet rates are calculated on the basis of the actually measured number of communication packets, a normal distribution is estimated at packet rate estimation circuits PPLs of a controller with use of its measured statistical data, and it is judged whether the packet communication of a call requiring the registration to the corresponding trunk line is permitted or prohibited.
REFERENCES:
patent: 4912702 (1990-03-01), Verbiest
patent: 5027351 (1991-06-01), DePrycker et al.
patent: 5081620 (1992-01-01), Girard et al.
patent: 5128932 (1992-07-01), Li
Hom Shick
Kabushiki Kaisha Toshiba
Olms Douglas W.
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