Sharp Kabushiki Kaisha Corporation

Kohki Suzuki

Shinichi Sawada

Shigeto Suzuki

Hirokazu Kobayashi

Akio Yoshihara

A first access method changer changes an access control method of a base station device to a third access control method in which a control with a first access control method and a control with a second access control method are performed simultaneously. The first access control method is such that a mobile station device subscribing to the group is allowed to access the base station device. The second access method is such that any mobile station device is allowed to access the base station device. A second access method changer changes the access control method of the base station device from the third access control method changed by the first access method changer to the first access control method.

Access control method, wireless communication system, base station device, mobile station device, and access control program

The mobile station device has: a first step of selecting a plurality of base station devices meeting a predetermined handover condition, based on reception levels of a plurality of signals transmitted from the plurality of base station devices; and a second step of reselecting, if the plurality of base station devices selected in the first step include a plurality of base station devices for specific subscribers, a base station device to be accessed from among the plurality of base station devices for specific subscribers, by using a predetermined correlation between frequencies and priorities. Accordingly, the number of frequencies can be reduced, and the ping-pong phenomenon can be suppressed.

Cell reselecting method and mobile station device

A priority storing unit (b) stores, for each of frequency bands predetermined, a priority for accessing a base station device using associated one of the frequency bands. A service type determining unit (b) chooses, based on identification information received from the at least one first base station device, which of the first and second services to receive from each of the at least one first base station device. A priority determining unit (b) determines, based on a type of a connection service chosen by the service type determining unit (b), a priority for each of the frequency bands which is used by the at least one first base station device, and to update the priority stored by the priority storing unit (b) based on the priority determined. A selection evaluator (b) selects a base station device to access, based on the priority updated by the priority determining unit (b) and a reception level of a reception signal for each of the frequency bands which is received from each of the base station devices.

Communication system, mobile station device, connection destination evaluating method, connection destination evaluating program, and base station device

A wireless communication system includes: a macrocell base station device; a micro base station device serving a cell having a region including at least a part of a region of a cell served by the macrocell base station device; and a mobile station device. One of the macrocell base station device and the micro base station device includes a reporter configured to report, to the mobile station device, micro base station information indicating the micro base station device to which the mobile station device can perform a handover. The mobile station device includes a handover destination selector configured to select a handover destination based on the micro base station information reported. Thereby, a handover is prevented while preventing the processing load on the mobile station device.

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Osaka, Japan

Kohki Suzuki