Abstract: A method and an apparatus for controlling a radio parameter, as well as a network operation management apparatus and a radio base station, are provided that enable optimization control taking a dead zone into consideration. A radio parameter control apparatus (10) for controlling a radio parameter of a radio base station (20) includes a measured data analysis section (101) that analyzes data measured by a plurality of radio terminals including a radio terminal in idle state to detect a dead zone in a radio cell, and a radio parameter control section (102) that controls the radio parameter of the radio base station based on information regarding the dead zone.

Abstract: A radio communication system, a radio station, a network operation management apparatus, and a network healing method are provided that can suppress system performance degradation caused when a failure occurs in a radio base station, a network apparatus, or the like. In a radio communication system which includes multiple radio stations (10, 20) and a network operation management apparatus (30) managing the radio stations and in which network optimization is performed, at least one of a first radio station (10) in which a failure occurs, a second radio station (20) different from the first ration station, and the network operation management apparatus (30) sends alarm information regarding the failure.

Abstract: A wireless communication system comprises: a setting notifying means for notifying, to a radio terminal, setting information related to at least one of the radio terminal's collection of measurement information and the radio terminal's reporting of the measurement information to a radio network; a status notifying means for notifying, to the radio network, a status related to at least one of the radio terminal's collection of the measurement information and the radio terminal's reporting of the measurement information; and a re-establishing means for receiving the status and determining whether to re-establish the setting information.

Abstract: A wireless parameter control device comprises: a serving cell prediction unit (11) which predicts a wireless cell which is a connection destination of a first wireless terminal within a first wireless cell upon assuming that an offset value which is added to the wireless quality which the first wireless terminal measures for each wireless cell is changed to a prescribed candidate value; a communication speed index prediction unit (12) which predicts a communication speed index of the first wireless terminal upon assuming that the offset value is changed to the prescribed candidate value and/or a communication speed index of a second wireless terminal within a second wireless cell which is present in the periphery of the first wireless cell; and a coverage control unit (13) which, on the basis of the result of the prediction of the communication speed index, controls the coverage of the first wireless cell and/or the coverage of the second wireless cell.

Abstract: Provided a relay apparatus arranged on a communication path between a content transmission apparatus and a wireless base station evaluates a communication quality relating to communication between the content transmission apparatus and the wireless terminal, and generates control information for controlling allocation of wireless resource for the wireless terminal, based on the control information.

Abstract: A wireless parameter control device of the present invention includes: a traffic load acquirer that acquires first load information indicating a traffic load of a first wireless cell, and second load information indicating a traffic load of a second wireless cell located around the first wireless cell; a first calculator that calculates a first indicator indicating an average characteristic of user throughputs of wireless terminals in the first wireless cell and the second wireless cell, using the first load information and the second load information; a second calculator that calculates a second indicator indicating fairness of user throughput of the wireless terminal in the first wireless cell and the second wireless cell, using the first load information and the second load information; and a wireless parameter controller that controls a wireless parameter of the first wireless cell according to the first indicator and the second indicator.

Abstract: An apparatus for controlling a radio parameter of radio cells, includes: an evaluation targeted radio cell selection unit configured to decide evaluation targeted candidate radio cells based on a change of a connection target radio cell of a radio terminal, which takes a control targeted radio cell as a serving cell or surrounding radio cells of the control targeted radio cell as a serving cell, associated with a change of a connection range of the control targeted radio cell by control of the radio parameter of the control targeted radio cell, and select at least one of the evaluation targeted candidate radio cells as an evaluation targeted radio cell for evaluating the radio parameter of the control targeted radio cell; and a radio parameter control unit configured to control the radio parameter of the control targeted radio cell based on quality of the evaluation targeted radio cell.

Abstract: A radio communication system, a radio station, a network operation management apparatus, and a network healing method are provided that can suppress system performance degradation caused when a failure occurs in a radio base station, a network apparatus, or the like. In a radio communication system which includes multiple radio stations (10, 20) and a network operation management apparatus (30) managing the radio stations and in which network optimization is performed, at least one of a first radio station (10) in which a failure occurs, a second radio station (20) different from the first ration station, and the network operation management apparatus (30) sends alarm information regarding the failure.

Abstract: A radio terminal, which is operative to perform a measurement on the basis of a measurement condition designated by a radio network and to report the result of the measurement, comprises: a position-determination precision calculating means for calculating a position-determination precision of the radio terminal; a required position-determination precision holding means for holding a required position-determination precision related to a condition of position-determination precision; and a measurement reporting control means for comparing the required position-determination precision with the calculated position-determination precision and for controlling the execution of at least one of the radio terminal's measurement and the radio terminal's reporting of the measurement result to the radio network.

Abstract: A wireless communication system that includes: a setting notifier for notifying, to a radio terminal, setting information related to at least one of the radio terminal's collection of measurement information and the radio terminal's reporting of the measurement information to a radio network; a status notifier for notifying, to the radio network, a status related to at least one of the radio terminal's collection of the measurement information and the radio terminal's reporting of the measurement information; and a re-establisher for receiving the status and determining whether to re-establish the setting information.

Abstract: A radio communication system, a radio station, a network operation management apparatus, and a network healing method are provided that can suppress system performance degradation caused when a failure occurs in a radio base station, a network apparatus, or the like. In a radio communication system which includes multiple radio stations (10, 20) and a network operation management apparatus (30) managing the radio stations and in which network optimization is performed, at least one of a first radio station (10) in which a failure occurs, a second radio station (20) different from the first ration station, and the network operation management apparatus (30) sends alarm information regarding the failure.

Abstract: A radio parameter control apparatus decides a radio parameter from which a throughput of UE is improved. A radio parameter control apparatus includes: a radio quality prediction unit (12) that predicts radio quality of a radio terminal due to change of a radio parameter of a radio cell; a resource-allocated number-of-communications prediction unit (13) that predicts the number of communications considered as allocation targets of radio resources in a radio cell due to the change of the radio parameter; a communication quality prediction unit (14) that predicts communication quality due to the change of the radio parameter based on a prediction result of the radio quality and a prediction result of the number of communications; and a radio parameter decision unit (15) that decides a radio parameter by which improvement of communication quality is predicted based on the predicted communication quality.

Abstract: A wireless parameter control device comprises: a serving cell prediction unit (11) which predicts a wireless cell which is a connection destination of a first wireless terminal within a first wireless cell upon assuming that an offset value which is added to the wireless quality which the first wireless terminal measures for each wireless cell is changed to a prescribed candidate value; a communication speed index prediction unit (12) which predicts a communication speed index of the first wireless terminal upon assuming that the offset value is changed to the prescribed candidate value and/or a communication speed index of a second wireless terminal within a second wireless cell which is present in the periphery of the first wireless cell; and a coverage control unit (13) which, on the basis of the result of the prediction of the communication speed index, controls the coverage of the first wireless cell and/or the coverage of the second wireless cell.

Abstract: A method and an apparatus for controlling a radio parameter, as well as a network operation management apparatus and a radio base station, are provided that enable optimization control taking a dead zone into consideration. A radio parameter control apparatus (10) for controlling a radio parameter of a radio base station (20) includes a measured data analysis section (101) that analyzes data measured by a plurality of radio terminals including a radio terminal in idle state to detect a dead zone in a radio cell, and a radio parameter control section (102) that controls the radio parameter of the radio base station based on information regarding the dead zone.

Abstract: A method and a radio parameter control system, as well as a network operation management apparatus and a radio station, are provided that enable optimization control for problems varying with sites of occurrence. Using location information at the time of measurement included in a measurement report from a radio terminal (30) located in a radio cell (C10), quality indicators based on measurement information acquired by the radio terminals or the radio station are compiled in association with areas (Ai), each of which is smaller than the radio cell (C10), and control of a radio parameter is performed in the radio cell or across a plurality of radio cells, based on a result of compilation of the quality indicators for each area.

Abstract: A radio parameter control apparatus (1) includes a measurement report collection unit (10) and a radio parameter determination unit (11). The measurement report collection unit (10) collects a plurality of measurement reports generated by at least one mobile station (5), each of the measurement reports containing a measurement result of radio quality of a first cell (62) managed by a base station (4). The radio parameter determination unit (11) determines, based on the plurality of measurement reports so as to reduce the number of cell-edge mobile stations deemed to be located at a cell edge between the first cell (62) and a neighboring cell (61), an updated value of a radio parameter capable of changing coverage of the first cell (62).

Abstract: A wireless communication system comprises: a setting notifying means for notifying, to a radio terminal, setting information related to at least one of the radio terminal's collection of measurement information and the radio terminal's reporting of the measurement information to a radio network; a status notifying means for notifying, to the radio network, a status related to at least one of the radio terminal's collection of the measurement information and the radio terminal's reporting of the measurement information; and a re-establishing means for receiving the status and determining whether to re-establish the setting information.

Abstract: A radio communication system, a radio station, a network operation management apparatus, and a network optimization method are provided that make it possible to avoid performance degradation in the entire system when network optimization is performed individually. In the radio communication system in which radio stations perform network optimization based on statistical communication quality in at least one cell, a radio station (10) notifies information related to a change in statistical communication quality in a cell under the radio station (10) to another radio station (20) or a network apparatus (30) managing the another radio station.

Abstract: A radio communication system, a radio station, a network operation management apparatus, and a network healing method are provided that can suppress system performance degradation caused when a failure occurs in a radio base station, a network apparatus, or the like. In a radio communication system which includes multiple radio stations (10, 20) and a network operation management apparatus (30) managing the radio stations and in which network optimization is performed, at least one of a first radio station (10) in which a failure occurs, a second radio station (20) different from the first ration station, and the network operation management apparatus (30) sends alarm information regarding the failure.

Abstract: A wireless communication system comprises: a setting notifying means for notifying, to a radio terminal, setting information related to at least one of the radio terminal's collection of measurement information and the radio terminal's reporting of the measurement information to a radio network; a status notifying means for notifying, to the radio network, a status related to at least one of the radio terminal's collection of the measurement information and the radio terminal's reporting of the measurement information; and a re-establishing means for receiving the status and determining whether to re-establish the setting information.