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Minami Ishii

Minami Ishii, Yokohama-Shi JP

Patent application numberDescriptionPublished
20090010209NOTIFICATION EQUIPMENT, TERMINAL EQUIPMENT, COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A notification equipment comprises a transmission data determination unit configured to determine whether transmission data to be transmitted to a terminal equipment is first transmission data or repeated transmission data, an instruction data generator configured to generate identification instruction data indicating that the transmission data is the first transmission data or the repeated transmission data based on a transmission data determination result by the transmission data determination unit, and an instruction data transmitter configured to transmit the identification instruction data to the terminal equipment.01-08-2009
20090028113RADIO NETWORK CONTROLLER, MOBILE STATION, AND MOBILE COMMUNICATION METHOD - A radio network controller comprises a cell selector configured to select a cell to use by a mobile station after data reception, and a mobile station controller configured to control the mobile station to communicate by radio using the cell selected by the cell selector after the data reception.01-29-2009
20090207814RADIO COMMUNICATIONS SYSTEM, RADIO NETWORK CONTROLLER AND BASE STATION - The present invention relates to a radio communications system which transmits same downlink information to a plurality of cells by using downlink common channels. The radio communications system includes a radio network controller and a base station. The radio communications system is configured to measure delays between the time when the radio network controller transmits the downlink information and the time when the base station transmits the downlink information to each of the plurality of cells; and to control timing for transmitting the downlink information to each of the plurality of cells by the base station in accordance with measured delays.08-20-2009
20100136992MOBILE COMMUNICATION METHOD, RADIO BASE STATION, MOBILE STATION, AND PROCESSOR - A mobile communication method according to the present invention includes the steps of: determining to change a reception cycle of a downlink data signal in the mobile station, from a continuous reception cycle to a discontinuous reception cycle; releasing the uplink dedicated resources being allocated to the mobile station (UE), in response to a result of the determination; and establishing uplink or downlink synchronization between the radio base station (eNB) and the mobile station (UE), and setting up the uplink dedicated resources, when transmission of an uplink data signal or a downlink data signal is to be resumed.06-03-2010
20100232366BASE STATION APPARATUS AND PACKET SCHEDULING METHOD - The object can be achieved by providing a base station apparatus with: priority calculation means configured to calculate priority of a user in packet scheduling; priority correction means configured to correct priority calculated by the priority calculation means according to a discontinuous reception state; and a scheduler configured to determine a user to which data should be transmitted based on the priority corrected by the priority correction means.09-16-2010
20100260143RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION METHOD - A radio communication system includes an EPC 10-14-2010

Patent applications by Minami Ishii, Yokohama-Shi JP

Minami Ishii, Tokyo JP

Patent application numberDescriptionPublished
20090279477MOBILE STATION, WIRELESS ACCESS NETWORK APPARATUS, AND MOBILE COMMUNICATION SYSTEM - A mobile station, a radio access network apparatus and a mobile communication system that can decrease signal amount of each message to decrease connection delay are provided. The mobile station is provided with storing means configured to store a conversion table between a combination of a plurality of parameters defined beforehand and an identifier representing the combination of the plurality of parameters; uplink transmission signal generation means configured to generate an uplink transmission signal including the identifier when performing uplink transmission; transmission means configured to transmit the uplink transmission signal to the radio access network apparatus; reception means configured to receive a downlink transmission signal transmitted by the radio access network apparatus; and parameter setting means configured to detect the identifier from the received downlink transmission signal, read and set a parameter based on the identifier.11-12-2009
20090285144DATA TRANSMITTING SYSTEM, DATA TRANSMITTING METHOD, BASE STATION AND MOBILE STATION - A data transmission system is disclosed for multicasting user common data from one or more radio base stations to one or more mobile stations. The radio base station is configured to transmit user common data using a shared data channel, transmit associated control information using an associated control channel, and transmit broadcast information using a broadcast channel. The mobile station is configured to receive the shared data channel, the associated control channel and the broadcast channel. The mobile station is further configured to analyze the broadcast information and the associated control information. The broadcast information includes information indicating transmission timing of the associated control channel. The associated control information includes information of a radio parameter of the shared data channel and includes distribution information indicating multicasting time of the user common data.11-19-2009
20090303939SHARED DATA CHANNEL ASSIGNING APPARATUS AND SHARED DATA CHANNEL ASSIGNING METHOD - An apparatus for allocating a shared data channel includes: a MAC identifier allocating unit configured to allocate a common MAC identifier to a mobile station in a discontinuous reception state; and a discontinuous reception timing control unit configured to prevent discontinuous reception timings from overlapping among multiple of the mobile stations to which the common MAC identifier is allocated.12-10-2009

Minami Ishii, Beijing CN

Patent application numberDescriptionPublished
20090270104METHOD AND APPARATUS FOR RESELECTING CELL IN MOBILE COMMUNICATION SYSTEM - Embodiments of the present invention include a method for performing cell reselection in a mobile communication system. The method comprises the steps of reading, by a user equipment (UE), the Access Class (AC) barring parameters of the serving cell which are broadcast from a base station, and performing an AC barring check; calculating the cell reselection values of the serving cell and the adjacent cells according to the cell reselection parameters broadcast by the base station when the AC barring check fails; and ranking the calculated cell reselection values, selecting by the UE the cell corresponding to the maximum value of the calculated cell reselection values as the serving cell of the UE.10-29-2009