Patent application number | Description | Published |
20120208581 | DISTRIBUTED ANTENNA SYSTEM BASE STATION AND RADIO RESOURCE CONTROL METHOD - Disclosed is a distributed antenna system that selects an antenna in accordance with the position of a mobile terminal and reduces the variation in the total number of mobile terminals using each antenna while maintaining adequate communication quality. In the distributed antenna system in which a large number of antennas are distributively disposed, an antenna group including antennas having good communication quality is selected in accordance with the position of a mobile terminal. Further, in accordance with the communication quality and load status of a current antenna group and with the communication quality and load status of a post-change antenna group, which is obtained by changing some antennas in the current antenna group, the post-change antenna group is formed by changing some antennas in the current antenna group with which a mobile terminal using a heavily loaded antenna communicates. | 08-16-2012 |
20120243513 | RADIO COMMUNICATION SYSTEM, BASE STATION APPARATUS, AND RADIO COMMUNICATION METHOD - To secure a constant level or more of radio communication quality for each user equipment performing radio communication with a base station apparatus, and to increase the number of user equipment which the base station apparatus can accommodate under a condition of assuring the radio communication quality. In a radio communication system where there exist a base station apparatus having multiple antennas and user equipment for performing radio communication with a first antenna group including one or more of the antennas, the first antenna group is made configurable for each user equipment individually, and addition/deletion of the antenna to/from the first antenna group is performed based on the communication quality of each user equipment so that the number of antennas within the first antenna group may be minimized within a range satisfying a required value of the communication quality between the base station apparatus ad the user equipment. | 09-27-2012 |
20120314665 | Distributed Antenna System, Allocation of Distributed Antennas, Base Station - In the case where a base station other than of a distributed antenna system provides a time or frequency at which a transmitted power is low, an antenna group configuration unit estimates a communication area of a mobile station using an uplink reference signal that the mobile station transmits, calculates an inter-system interference power for the communication area of each mobile station based on a received power of the out-of-system base station that the each mobile station reports, calculates the inter-system interference power to each of antennas by averaging the inter-system interference powers that the multiple mobile stations report, and decides antennas that form an antenna group according to magnitudes of the calculated inter-system interference powers. | 12-13-2012 |
20130070625 | WIRELESS COMMUNICATION SYSTEM AND BASE STATION - To reduce an uplink interference in a network with a first base station of a large output and a second base station of a small output. Detecting the interference, the second base station urges the first base station to hand over a terminal causing it to the second base station. Multiple base stations and one or more terminals exist in this system, each terminal connects with one base station, and a serving base station is changed according to a communication state of each terminal. If the different second base station other than the first base station to which the terminal connects detects a large interference, the second base station will multicast transmit information for urging handover to the base stations except itself. The base station having received the information specifies a terminal giving the interference to the second base station, and makes it to be handed over thereto. | 03-21-2013 |
Patent application number | Description | Published |
20130002542 | COORDINATE INPUT DEVICE AND PROGRAM - With respect to a coordinate designation device capable of detecting simultaneous operational input for a plurality of coordinates, occurrences of erroneous operations during textual input, etc., are suppressed. An elapsed time from a previous up operation up to a new down operation is calculated, and, if the calculated elapsed time is equal to or less than a threshold, an event for the input information is issued at the detected coordinates of the down operation. In addition, a traveled distance from coordinates at the time of starting input up to the current coordinates is calculated, and, if the calculated traveled distance is equal to or greater than a threshold, an event for the input start point is issued at the coordinates at the time of starting input. | 01-03-2013 |
20130009914 | COORDINATE INPUT DEVICE, AND PROGRAM - With respect to a coordinate input device comprising an operation detection plane at a position in front of a display surface or projection surface, contact with the display surface or projection surface, or the absence thereof, by an input object having a round tip is accurately determined. The coordinate input device provided comprises: processing means that detects a size of the input object blocking detection light that travels along the operation detection plane; processing means that generates a down event of the input object when, after blockage of the detection light is initially detected, it is detected that the size has become greater than a first threshold; and processing means that generates an up event of the input object when, following detection of a maximum value of the size, it is detected that the size has become smaller than a second threshold. | 01-10-2013 |
20140219125 | BASE-STATION DEVICE AND COMMUNICATION METHOD - By a base station that is not limited to a cell concept, the system control cost is controlled and an area of high-communication-speed/high-communication-quality is expanded. There are provided fixed-cell support base-station devices | 08-07-2014 |
20140249959 | VEHICLE EVALUATION DEVICE AND VEHICLE EVALUATION METHOD - Various forms of vehicle driving energy are provided for vehicles, such as gasoline vehicle, hybrid vehicle, ethanol vehicle, electric vehicle and fuel cell vehicle. In such circumstances, an index is desired by vehicle purchasers, which has a viewpoint on the benefit to be obtained by using an electricity storing section of a vehicle for other than running the vehicle, and with which the economic efficiencies of those vehicles can be more clearly compared/examined, in the correlation between the prices of the abovementioned vehicles using various vehicle drive energy modes, and the fuel consumption and the drive energy consumption costs thereof. To display evaluations of vehicles in various drive energy modes, by dividing a fuel efficiency numerical value by a vehicle price. In addition, to achieve a vehicle evaluation/comparison at the time of purchasing a new car, by setting a planned running distance. | 09-04-2014 |
20150023199 | WIRELESS COMMUNICATION METHOD AND WIRELESS COMMUNICATION SYSTEM - A wireless communication method uses first and second demodulation reference signals in channel estimation of data and control signals, respectively, in a wireless communication system including a base station and a terminal. The base station informs the terminal of N parameters of first to Nth parameters to determine signal sequences for the first demodulation reference signal with a control signal of a higher layer, and informs the terminal of one parameter to determine a signal sequence for the second demodulation reference signal. The terminal defines a signal sequence with the one parameter informed of as the second demodulation reference signal, demodulates and decodes a control signal of the lower layer using the defined second demodulation reference signal, and defines a signal sequence with one parameter of the first to the Nth parameters with a correctly decoded control signal of the lower layer as the first demodulation reference signal. | 01-22-2015 |
20150087324 | BASE STATION, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD - A base station is provided with a plurality of radio units that communicate with a terminal, and a control device connected to the plurality of radio units. When there is a large number of terminals positioned at a boundary of the communication areas of a first radio unit and a second radio unit among the plurality of radio units, the control device makes a first cell ID of the first radio unit and a second cell ID of the second radio unit being identical. | 03-26-2015 |
20150189583 | RADIO COMMUNICATION SYSTEM, BASE STATION, AND CELL SELECTION CONTROL METHOD - The present invention provides a method of controlling the selection of a cell in a radio communication system for increasing the capacity of the system by effectively utilizing a small cell base station and a base station apparatus for realizing it. At least one base station of a macrocell base station and a small cell base station is provided with plural antennas, and the base station selects a cell and adjusts a criterion for reselection by generating processing gain using the plural antennas by signal processing and performing a cell selection bias correcting process using the processing gain using the plural antennas. | 07-02-2015 |
20150249199 | PIEZOELECTRIC DEVICE - A piezoelectric device has: a ceramic substrate having a first principal surface and a second principal surface opposed to each other; a piezoelectric element arranged on the first principal surface; a frame having a first face and a second face opposed to each other and arranged on the ceramic substrate so as to surround the piezoelectric element; a metal layer arranged on the second face of the frame; and a metal lid arranged on the metal layer so as to close a space surrounded by the frame. The first face of the frame is in contact with the first principal surface of the ceramic substrate. The metal layer and the metal lid are joined to each other by resistance welding. The frame has a composite portion containing a metal and a metal oxide and the composite portion includes the second face and is in contact with the metal layer. | 09-03-2015 |
20150257160 | BASE STATION AND RADIO COMMUNICATION METHOD - Even when a downlink radio traffic volume is larger than an uplink radio traffic volume in a radio communication system, but uplink resources are redundant in a related art radio communication system, free uplink resources could not be sufficiently utilized. In a base station having a cellular unit that performs cellular communication with a terminal, and a D | 09-10-2015 |
20150276504 | PIEZOELECTRIC DEVICE - Provided is a piezoelectric device capable of improving measurement precision of a temperature of a piezoelectric element. A piezoelectric device ( | 10-01-2015 |
Patent application number | Description | Published |
20130247721 | METHOD FOR SEPARATING POSITIVE-POLE ACTIVE SUBSTANCE AND METHOD FOR RECOVERING VALUABLE METALS FROM LITHIUM ION BATTERY - The present invention aims at improving a recovery rate of a positive-pole active substance and preventing a recovery loss of valuable metals when a positive-pole active substance is separated from a lithium ion battery. In the present invention, a material resulting from battery dismantling obtained by dismantling a lithium ion battery is stirred using a surfactant solution, whereby a positive-pole active substance is separated from a positive-electrode substrate. Also, it is preferable that an alkaline solution is added to a positive-electrode material of a material resulting from battery dismantling, thereby dissolving a positive-electrode substrate to which a positive-pole active substance adheres to obtain a slurry containing the positive-pole active substance, and a surfactant solution is added to the slurry to disperse the positive-pole active substance in the slurry, whereby the positive-pole active substance is separated from the alkaline solution. | 09-26-2013 |
20130269484 | VALUABLE METAL LEACHING METHOD, AND VALUABLE METAL COLLECTION METHOD EMPLOYING THE LEACHING METHOD - The present invention provides a valuable metal leaching method and a valuable metal collection method, in each of which valuable metals can be leached efficiently, the amount of a reducing agent used can be reduced, and cost reduction can be achieved. In the present invention, a positive electrode material is immersed in an acidic solution together with a metal having a lower reduction potential than a reduction potential of hydrogen, whereby valuable metals are leached out from a positive-electrode active substance. | 10-17-2013 |
20140322107 | METHOD FOR RECOVERING RARE EARTH ELEMENT - The object of the present invention is to provide a method for recovering a rare earth element, which is capable of efficiently recovering a rare earth element with high recovery rate without using any expensive chemicals, solvents or the like. In the present invention, a water-soluble salt other than sulfate ions is allowed to coexist with an aqueous solution that contains a rare earth element, and then an alkali metal sulfate is added to the aqueous solution, thereby producing a precipitate of a double sulfate of the rare earth element. | 10-30-2014 |
20150013499 | METHOD FOR RECOVERING LITHIUM - To provide a method for recovering lithium, that is capable of efficiently recovering lithium without containing impurities, such as phosphorus and fluorine, from a lithium-containing solution containing lithium hexafluorophosphate and separated from a lithium ion battery. In the present invention, alkali hydroxide is added to the lithium-containing solution and the solution is made to have pH 9 or more, a precipitate of a phosphate and a fluoride salt is formed, the formed precipitate is separated and removed, and then lithium is recovered from filtrate. | 01-15-2015 |