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Hidekazu Tsuboi, Osaka JP

Hidekazu Tsuboi, Osaka JP

Patent application numberDescriptionPublished
20100046360WIRELESS COMMUNICATION METHOD, RECEIVING METHOD, AND WIRELESS COMMUNICATION DEVICE - A wireless communication method, comprising: allocating, by a base station device, elements of a sequence having an index indicative of a communication parameter to synchronization channel symbols; generating, by the base station device, a synchronization channel while maintaining symmetry of the sequence; transmitting, by the base station device, signals including the synchronization channel; receiving the signals by a mobile station device, correcting, by the mobile station device, the signals based on the symmetry of the sequence; and extracting, by the mobile station device, the communication parameter.02-25-2010
20100222050BASE STATION APPARATUS, MOBILE STATION APPARATUS, COMMUNICATION SYSTEM, AND CELL SEARCH METHOD - There are provided a base station apparatus, a mobile station apparatus, and a cell search method capable of reducing the circuit scale of the mobile station apparatus and a calculation amount by optimizing information distribution to a primary synchronization channel (P-SCH) and a secondary synchronization channel (S-SCH). The base station apparatus transmits the P-SCH and the S-SCH as synchronization channels. The base station apparatus is equipped with an SCH signal generation unit that multiplies the S-SCH by a sequence according to a cell type of the base station apparatus.09-02-2010
20100329189BASE STATION DEVICE, MOBILE STATION DEVICE, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM - A synchronization channel control unit halts generation of a synchronization channel signal. A signal control unit halts generation of signals other than the synchronization channel signal after the synchronization channel control unit halts generation of the synchronization channel signal.12-30-2010
20110013592MOBILE COMMUNICATION SYSTEM, BASE STATION DEVICE, MOBILE STATION DEVICE, AND MOBILE COMMUNICATION METHOD - A mobile communication system includes a mobile station device and a base station device. The base station device includes a cell identification information transmission unit which transmits cell identification information of base station devices transmitting radio signals of the same synchronization channel, to the mobile station device when there are at least two base station devices transmitting radio signals of the same synchronization channel within a predetermined communication area. The mobile station device includes a measurement result transmission unit which performs a measurement process based on the cell identification information of the base station devices and transmits the measurement result acquired by the measurement process to the base station device.01-20-2011
20110039551MOBILE COMMUNICATION SYSTEM, MOBILE STATION DEVICE, BASE STATION DEVICE, AND MOBILE COMMUNICATION METHOD - A mobile communication system including a mobile station device and a base station device, wherein the mobile station device includes: a reception quality measurement unit which measures reception qualities based on signals transmitted from neighboring base station devices; a determination unit which determines a base station device with which the mobile station device communicates, based on a service tried to receive by the mobile station device and the reception qualities measured by the reception quality measurement unit; and a communication unit which communicates with the base station device determined by the determination unit.02-17-2011
20110177813SMALL BASE STATION APPARATUS, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND MOBILE COMMUNICATION SYSTEM - A procedure when a mobile station apparatus accesses a CSG cell in which it is unregistered is defined and a procedure based on the definition is performed. A small base station apparatus applied to a mobile communication system, receives a originated call request message including a user identifier and priority information from a camping mobile station apparatus, determines whether or not to permit the originated call request of the mobile station apparatus, based on the user identifier and the priority information, and transmits the determination result to the mobile station apparatus. In addition, the small base station apparatus permits the originated call request, if the user identifier included in the originated call request message of the mobile station apparatus indicates that the mobile station apparatus is registered.07-21-2011
20110206032BASE STATION APPARATUS, MOBILE STATION APPARATUS, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - By changing a scrambling code to be multiplied with a secondary synchronization channel for a different sub-frame number, the number of codes required to be retained in a mobile station apparatus is reduced and also a circuit scale and a computation amount thereof are reduced, while an effect of causing interference from a neighboring cell to be random is being maintained. There are provided a primary synchronization channel generation unit (08-25-2011
20110256868BASE STATION DEVICE, MOBILE STATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A communication system which performs communication between a base station device configuring at least one cell and a mobile station device, wherein: the base station device includes: a synchronization signal generation unit which generates a synchronization signal corresponding to a cell identity for identifying a cell; and a transmission unit which generates a first transmission signal including the synchronization signal using a first parameter obtained from the cell identity, generates a second transmission signal excluding the synchronization signal using a second parameter obtained from a virtual cell identity different from the cell identity, transmits the first transmission signal using a first frequency band, and transmits the second transmission signal via a second frequency band different from the first frequency band. The mobile station device includes: a reception unit which receives a first reception signal including the synchronization signal using the first parameter obtained from the cell identity via the first frequency band and receives a second reception signal using the second parameter obtained from the virtual cell identity via the second frequency band.10-20-2011