Patent ID: 9668165
Date: 2017-05-30
CPC Classifications: H04M,H04W

Claim:
1. A method of measuring communication quality, comprising: delivering information on measurement condition including information on a measurement schedule designating a measurement time of measuring communication quality and measurement-schedule identification information of identifying the measurement schedule, to a communication terminal apparatus capable of communicating via a mobile communication network; performing a communication with the communication terminal apparatus via the mobile communication network at a timing when the measurement time designated by the measurement schedule of the measurement condition occurs; acquiring terminal-side measurement data recorded in the communication terminal apparatus side with respect to two or more communications performed at the timing when the measurement time designated by the measurement schedule occurs and network-side measurement data recorded in the network side with respect to the communications performed at the timing when the measurement time designated by the measurement schedule occurs, wherein the terminal-side measurement data includes information on success or failure of connection, the measurement-schedule identification information, terminal-status log information and terminal-existing base-station quality information, and the network-side measurement data includes the information on success or failure of connection and the measurement-schedule identification information; calculating an index value of communication quality including a probability of successful connection in the communications via the mobile communication network based on both the terminal-side measurement data and the network-side measurement data; and identifying a cause of communication failure by collating the terminal-status log information with the terminal-existing base-station quality information, in case that the communication performed at the timing when the measurement time designated by the measurement schedule occurs is failed.