US 12,225,446 B2
Performing a control operation to switch a plurality of communication paths
Naotaka Shibata, Musashino (JP); Keita Takahashi, Musashino (JP); and Jun Terada, Musashino (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/768,120
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed Oct. 16, 2019, PCT No. PCT/JP2019/040671
§ 371(c)(1), (2) Date Apr. 11, 2022,
PCT Pub. No. WO2021/074999, PCT Pub. Date Apr. 22, 2021.
Prior Publication US 2023/0247517 A1, Aug. 3, 2023
Int. Cl. H04W 40/12 (2009.01)
CPC H04W 40/12 (2013.01) 7 Claims
OG exemplary drawing
 
5. A signal transfer control method for performing a control operation to switch a plurality of communication paths constituted by a plurality of signal transfer apparatuses transferring a signal, the signal transfer control method comprising:
a fixed delay information acquisition process that acquires fixed delay information for each of the plurality of communication paths;
a traffic information acquisition process that acquires traffic information indicating a traffic volume of each of the plurality of communication paths;
a probability density function estimation process that estimates a probability density function of a traffic volume of each of the plurality of communication paths based on the traffic information;
an occurrence probability estimation process that estimates an occurrence probability of variable delay in each of the plurality of communication paths based on the probability density function of each of the plurality of communication paths;
a communication path calculation process that performs a calculation for specifying a communication path which is highly likely to satisfy a predetermined delay condition based on the occurrence probability of the variable delay in each of the plurality of communication paths and the fixed delay information for each of the plurality of communication paths; and
a setting instruction process that outputs a setting instruction for switching a transfer destination of a signal to at least any one of the signal transfer apparatuses so that the signal is transferred via the specified communication path.