Patent ID: 9635565
Date: 2017-04-25
CPC Classifications: H04W

Claim:
1. A radio communication system, wherein a radio terminal, including at least one processor, upon acquiring measurement instruction information from a radio station, performs measurement and logging in accordance with the measurement instruction information, and reports to the radio station, the radio terminal comprising: a measurement execution unit, within at least one of said at least one processor, that, when finding that a first condition on selection or detection of a first cell in which the radio terminal is allowed to be served for a predetermined service, is satisfied, and a second condition on measurement or logging is satisfied, logs information on a second cell in which the terminal is not allowed to be served for the predetermined service, wherein the first condition comprises at least one of: the radio terminal detecting a situation in which selection of the first cell is not possible; received quality of a serving cell while the radio terminal being served, no longer satisfying a cell selection criteria; elapse of a preset time-period, while the radio terminal being served, since received quality of a serving cell no longer satisfies a cell selection criteria; and transition of the radio terminal to a state in which the radio terminal performs detection of the second cell is performed.