Patent application number | Description | Published |
20080227475 | Wireless Communication System and Wireless Communication Method - The present invention relates to a radio communications system and a radio communications method, and an object of the invention is to readily reduce the occurrence of collisions of contention channels. In order to achieve the object, radio resources are assigned in different orders between one radio communication and another one radio communication. | 09-18-2008 |
20090093219 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION SYSTEM - A wireless communication technique capable of maintaining excellent communication quality. A wireless communication system includes base station equipment. The base station equipment is capable of performing wireless communication with a plurality of mobile units. The base station equipment detects the mobile units which are not synchronized with the base station equipment. Then, the base station equipment limits the transmission power to the mobile units detected. | 04-09-2009 |
20090137250 | MOBILE RADIO COMMUNICATION SYSTEM, BASE STATION APPARATUS, RADIO NETWORK CONTROLLER, AND MOBILE STATION - In a mobile radio network in which synchronous base stations and asynchronous base stations coexist, according to handover destination base station candidate information transmitted from a base station to a mobile station, effective time information indicating either an effective time during which it is guaranteed that a signal from a base station candidate included in the handover destination base station candidate information can be detected when, after a lapse of an integral multiple of a fixed time interval from a time when the mobile station could detect a reference signal which were transmitted at the fixed time intervals from the base station candidate, the mobile station detects the same base station candidate again, the effective time depending on the base station candidate, or an index for enabling the mobile station to drive the effective time is provided to the mobile station, and the mobile station carries out the detection by setting up the detection time intervals at which the mobile station detects a signal from the base station candidate on the basis of the effective time information. | 05-28-2009 |
20090202008 | WIRELESS COMMUNICATION APPARATUS - A wireless communication device including a sending data amount determination unit, a data sending unit, a monitor function unit, a transmission control data producing unit, a transmission control data sending unit, a data reception unit, and an application I/F (interface) unit. The transmission control data sending unit includes a transmission control data separation unit, a transmission control data replication unit, and a data mapping unit. | 08-13-2009 |
20090245171 | WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION APPARATUS - A wireless communication system and a wireless communication device capable of performing communication by each transmission signal without mutual interference, when a plurality of transmission signals of different communication systems or the same communication systems exist within the same frequency band. The system includes a first wireless communication device, a second wireless communication device, a third wireless communication device, and a fixed band-pass filter and a variable band-pass filter in the third wireless communication device. The first wireless communication signal includes control information indicating a variable pass band in the variable band-pass filter, and the control information is given to the variable band-pass filter, thereby allowing the first wireless communication signal to be selectively passed through the variable band-pass filter, while removing the second wireless communication signal. | 10-01-2009 |
20100003990 | MOBILE COMMUNICATIONS SYSTEM, MOBILE STATION AND BASE STATION - In a mobile communications system in which a mobile station is capable of communicating simultaneously with a plurality of base stations, the resources of the plurality of base stations are managed under the control of the mobile station. For example, the mobile station specifies a resource to a base station with a resource specifying signal, the mobile station specifies a resource to a base station with a resource specifying signal, and the mobile station specifies a resource to a base station with a resource specifying signal. | 01-07-2010 |
20100291931 | MOBILE COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, AND BASE STATION INSTALLATION METHOD - In a mobile communication system, a mobile station is configured to obtain data quality information, and provides the obtained data quality information to a base station A when it is quality information about data from the base station A, and provides the data quality information to a base station B when it is quality information about data from the base station B. The base stations A and B are configured to provide a base station host apparatus with the quality information from the mobile station as historical information about the mobile station, and the base station host apparatus is configured to compare the pieces of quality information sent from the two base stations, select one base station with better quality, instructs it to communicate with the mobile station, and instructs the other not to communicate with the mobile station. | 11-18-2010 |
20110111803 | RADIO BASE STATION DEVICE - A radio base station device | 05-12-2011 |
20110274227 | WIRELESS BASE STATION - A wireless base station capable of keeping an internal clock highly accurate even in a case where a malfunction occurs in an external time information notification server such as an NTP server. A wireless base station that performs wireless communication with a mobile terminal is connected to a plurality of time information notification servers. The wireless base station selects any of a plurality of pieces of time information notified from a plurality of time information notification servers, respectively, and corrects an internal clock based on the selected piece of time information. This can keep the internal clock of the wireless base station highly accurate. | 11-10-2011 |
20120135742 | MOBILE COMMUNICATION SYSTEM - In a mobile communication system, a mobile switching center | 05-31-2012 |
20120263149 | MOBILE COMMUNICATION SYSTEM - In a mobile communication system, a mobile switching center | 10-18-2012 |