Patent application number | Description | Published |
20120135737 | CELL RESELECTING METHOD AND MOBILE STATION DEVICE - 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. | 05-31-2012 |
20120135738 | COMMUNICATION SYSTEM, MOBILE STATION DEVICE, CONNECTION DESTINATION EVALUATING METHOD, CONNECTION DESTINATION EVALUATING PROGRAM, AND BASE STATION DEVICE - A priority storing unit (b | 05-31-2012 |
20120165065 | WIRELESS COMMUNICATION SYSTEM AND HANDOVER METHOD - 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. | 06-28-2012 |
20120221245 | COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM - A position measuring unit measures a position. An area determining unit determines a means of movement. A position measurement result transmission determining unit determines, based on the means of movement determined by the area determining unit, whether or not to transmit the position measurement result of the position measuring unit to the information-providing apparatus. A transmitting unit transmits, in the case in which the position measurement result transmission determining unit determines to transmit the position measurement result to the information-providing apparatus, the position measurement result to the information-providing apparatus. | 08-30-2012 |
20120289282 | MOBILE STATION DEVICE, MOBILE COMMUNICATION SYSTEM, AND PROGRAM - A mobile station device is configured to wirelessly communicate with a plurality of base station devices. In case that a base station device selected as a base station device to be reselected is a base station device on which the mobile station device is prohibited to camp, and has reported an indication of prohibition to reselect a base station device using the same frequency, the mobile station device is configured to delay application of the indication of prohibition, and to apply the indication of prohibition when the mobile station device performs transmission. | 11-15-2012 |
20130035134 | MOBILE COMMUNICATION SYSTEM, BASE STATION DEVICE, AND MOBILE COMMUNICATION TERMINAL - A mobile communication system includes: a plurality of mobile communication terminals; and a first base station device configured to wirelessly communicate with the plurality of mobile communication terminals. The first base station device is configured to report to the plurality of mobile communication terminals that a second base station device allowing only a particular mobile communication terminal access is set to allow all the plurality of mobile communication terminals access, by transmitting using cell broadcast service, identification information of the second station device. | 02-07-2013 |
20130190012 | MOBILE STATION DIRECTED TO WIRELESS COMMUNICATION SYSTEM INCLUDING HOME CELL - A mobile station connected to a wireless communication network includes a surrounding environment recording unit configured to record a surrounding environment of the mobile station; a proximity determination unit; and a proximity indication generation unit configured to generate a proximity indication. The proximity determination unit compares a past surrounding environment record that has been recorded by the surrounding environment recording unit with the current surrounding environment record. When the surrounding environment records correspond to each other, or when a degree of similarity between the surrounding environment records exceeds a predetermined degree, the proximity determination unit determines that the mobile station is in proximity to a predetermined home cell base station, and transmits the proximity indication generated by the proximity indication generating unit to a macro cell base station in response to determination that the mobile station is in proximity to the predetermined home cell base station. | 07-25-2013 |
20130195078 | COMMUNICATION SYSTEM, MOBILE TERMINAL, AND COMMUNICATION METHOD - A wireless communication system including a mobile terminal and a plurality of base stations is provided. Each of base stations includes communication unit selectively uses at least one of a plurality of frequency bands to communicate with the mobile terminal, and a handover unit performs handover with at least one another base station. The mobile terminal includes a storage unit stores, by each base station basis, information of a frequency band used for communication from the plurality of frequency bands, and a notification unit notifies, when handover from a first base station currently connected in communication to a second base station is required, the first base station about a proximity indication associated with some of the plurality of frequency bands based on the stored information of the frequency band used for communication. | 08-01-2013 |
20140120917 | COMMUNICATION SYSTEM, COMMUNICATION METHOD, BASE STATION , AND MANAGEMENT DEVICE - A communication system includes a mobile terminal; a management device that manage a position of the mobile terminal; a first base station that creates a first cell area and retains management information for managing a mobile terminal in the first cell area; a gateway, arranged between the first base station and the management device, that retains management information for managing a mobile terminal in the first cell area; and a second base station that creates a second cell area. In a case where the management entity of the mobile terminal is changed from the first base station to the second base station, the first base station updates management information, included in its retaining management information, associated with the relevant mobile terminal, and transmits to the gateway a command to update management information associated with the relevant mobile terminal. | 05-01-2014 |
20140198771 | BASE STATION, HANDOVER CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM - Provided is an HeNB which can cause a mobile station within a coverage of the HeNB to be handed over to another communicable base station. An HeNB communicates with an MME through a relay process by a gateway. The HeNB detects a state of the gateway. The HeNB stops communication with a mobile phone in accordance with the state of the gateway. | 07-17-2014 |
20150030000 | WIRELESS COMMUNICATION SYSTEM, COMMUNICATION METHOD, BASE STATION, AND MOBILE TERMINAL - A wireless communication system allows a handover operation to a base station communicating through a plurality of frequency bands. The mobile terminal includes a communication unit adapted to perform communication with any of the base stations through a plurality of frequency bands. The communication unit of the base station notifies, when communication through a plurality of frequency bands is possible, a mobile terminal about information directed to identifying a main frequency band from relevant frequency bands in a manner allowing discrimination from one or more frequency bands other than the main frequency band. The communication unit of the mobile terminal determines that, upon receiving information directed to identifying a main frequency band from the second base station during having communication connection with the first base station, that the frequency band identified by the relevant information is a subject of handover towards the second base station. | 01-29-2015 |
20150050932 | WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, MOBILE STATION DEVICE, AND BASE STATION DEVICE - A wireless communication system includes a first base station device, a second base station device, and a mobile station device configured to communicate with the first and second base station devices. The first base station device includes a request notifying unit configured to notify the mobile station device of a request for carrier aggregation. The mobile station device includes: a cell search unit configured to, upon receiving the request, perform cell search and thereby search the second base station device available for carrier aggregation; and a base station notifying unit configured to notify the first base station device of information indicating the second base station device detected by the cell search unit performing the cell search. | 02-19-2015 |
20150050941 | WIRELESS COMMUNICATION SYSTEM, COMMUNICATION METHOD, BASE STATION, AND COMMUNICATION TERMINAL - A wireless communication system, a communication method, a base station, and a communication terminal are provided. The wireless communication system includes a base station, and a communication terminal that can communicate with the base station through a plurality of frequency bands. The wireless communication system includes a first notification module provided at one of the base station and communication terminal for notifying the other of the base station and communication terminal of a switching preparation request when a state is detected in which the frequency band used as the main frequency band among the plurality of frequency bands is to be switched, and a second notification module that notifies one of the base station and communication terminal of frequency band switching preparation completion in response to a determination of being in a state in which the frequency band used as the main frequency band is to be switched. | 02-19-2015 |