公开(公告)号：US09692531B2

公开(公告)日：2017-06-27

申请号：US14911519

申请日：2015-02-02

Applicant: SoftBank Corp.

Inventor： Daisuke Maeda ,  Liang Zhang ,  Takao Okamawari ,  Teruya Fujii

IPC: H04W24/08 ,  H04B17/309 ,  H04W24/10 ,  H04W88/02

CPC classification number: H04B17/309 ,  H04W24/08 ,  H04W24/10 ,  H04W88/02

Abstract: Methods and systems of measuring communication quality are provided, by which measurement schedules of communication quality can be managed and controlled easily. A plural measurement-time slot is set with respect to a communication line used for communication quality measurements between a plural communication terminal apparatus via a mobile communication network, wherein each measurement-time slot has a time corresponding to one measurement of communication quality and the plural measurement-time slot is continuously arranged at a predetermined period, and a plural measurement schedule for measuring communication quality in each of communications with the plural communication terminal apparatus to the plural measurement-time slot. Information of the measurement schedule for each of the plural communication terminal apparatus is delivered to each communication terminal apparatus, and a communication for the communication quality measurement with the communication terminal apparatus corresponding to the measurement schedule via the communication line is performed when the time of measurement schedule comes.