Patent application number | Description | Published |
20100029142 | CONNECTOR TERMINAL AND CONNECTOR WITH THE CONNECTOR TERMINAL - An object of the present invention is to provide a connector terminal | 02-04-2010 |
20100192366 | TERMINAL CRIMPING APPARATUS, METHOD OF MANUFACTURING TERMINAL CRIMPING ELECTRIC WIRE, AND TERMINAL CRIMPING ELECTRIC WIRE - A terminal crimping apparatus, which crimps a crimping part of a terminal onto a conductor at an end part of an electric wire, includes: an anvil which supports a bottom part of the crimping part in a mounted manner; and a crimper disposed so as to move in proximity to and apart from the anvil. A plurality of anvil-side crimping surfaces are formed in the anvil along a longitudinal direction of the conductor, the respective anvil-side crimping surfaces being formed so as to be continuous from each other without a step, in a substantially center part in a width direction thereof, along the longitudinal direction of the conductor and have curved surface shapes different from each other in both side parts thereof. | 08-05-2010 |
20100230160 | CRIMP TERMINAL, TERMINAL-PROVIDED WIRE, AND MANUFACTURING METHOD THEREOF - Provided is a technique of enabling high-compression crimping without breaking a crimp terminal while forming a recessed portion promoting a wire crimp portion of the crimp terminal to cut into a conductor in the wire crimp portion. The crimp terminal according to the invention includes a wire crimp portion, which is crimped to a conductor of a wire and includes a first crimp portion crimped to a base side of the conductor and a second crimp portion crimped to a tip end side. A recessed portion for promoting a cutting-in effect is formed in an inner surface of the wire crimp portion. A recessed portion formed in the second crimp portion is divided in a terminal width direction or is shallower than a recessed portion formed in the first crimp portion. Alternatively, the recessed portion is omitted and a recessed portion is formed only in the first crimp portion. | 09-16-2010 |
20100261391 | CRIMP TERMINAL, TERMINAL-PROVIDED WIRE, AND MANUFACTURING METHOD THEREOF - Provided is a technique of ensuring mechanical strength in a terminal-provided wire and lowering contact resistance between the wire and the crimp terminal, without greatly varying a crimp height of a crimp terminal onto the wire in an axial direction. A crimp terminal according to the invention includes a conductor barrel which is crimped to a conductor of a wire. The conductor barrel has an inner surface which closely contacts the conductor by bending. The inner surface has such a shape a surface thereof which closely contacts a tip end side part of the conductor inwardly projects beyond a surface thereof which closely contacts a base side part of the conductor, thus performing a higher compression of the tip end side part of the conductor than that of the base side part thereof by the bending. | 10-14-2010 |
20110094797 | ELECTRIC WIRE WITH TERMINAL CONNECTOR AND METHOD OF MANUFACTURING ELECTRIC WIRE WITH TERMINAL CONNECTOR - An electric wire with terminal connector including an electric wire having a core wire including a plurality of wires and a female terminal connector including a wire barrel that is crimped onto the core wire exposed from the electric wire, the following steps are executed. The steps include a step of removing wire insulation covering an outer peripheral surface of the core wire to expose the core wire, a step of holding the exposed core wire with jigs provided in a pair and applying ultrasonic vibration to the core wire via the jigs, and a step of crimping the wire barrel so as to surround a part of the core wire to which the ultrasonic vibration is applied. | 04-28-2011 |
20140230654 | GAS SEPARATION MEMBRANE - The present invention relates to a gas separation membrane comprising as a main component a polyacetal, wherein the polyacetal contains 1.5 to 10 mol of an oxyalkylene unit based on 100 mol of an oxymethylene unit. The gas separation membrane of the present invention has high carbon dioxide gas separating ability and high permeability rate to carbon dioxide gas and is advantageously used as a separation membrane for carbon dioxide gas contained in exhaust gas. | 08-21-2014 |
Patent application number | Description | Published |
20100070724 | Storage system and method for operating storage system - In acquiring a snapshot, when data in a P-VOL is updated, it is determined whether the same data as target data to be stored in a certain second storage area specified by a certain second address of a D-VOL is already stored in a different second storage area specified by a different second address of the D-VOL, the target data being the differential data generated by the update. When the same data as the target data is stored, the target data is not newly stored in the D-VOL, and the different second address, specifying the different second storage area where the same data is stored, is registered in a snapshot management table (CoW table), in association with a certain first address specifying a certain first storage area where the data from which the target data has been generated is stored. | 03-18-2010 |
20100262637 | FILE CONTROL SYSTEM AND FILE CONTROL COMPUTER FOR USE IN SAID SYSTEM - A situation where, even though a file system set with an additional function has been expanded, the additional function is unable to operate is prevented from occurring. Provided are a file control computer and its system having a main computer including a file system for managing reading and writing of data between the client computer and the storage device, a control circuit for controlling the file system, and a memory circuit for storing management information of the file system. The memory circuit stores setting information which is set with an additional function that is set to the file system, and a condition necessary for operating the additional function. Upon expanding the file system based on the management information, the control circuit determines a status of fulfillment of the condition in the expanded file system, and outputs warning information if the determination result denies fulfillment of the condition. | 10-14-2010 |
20110040729 | HIERARCHICAL MANAGEMENT STORAGE SYSTEM AND STORAGE SYSTEM OPERATING METHOD - The storage system eliminates inconsistency between a stub, and a file data storage location indicated by the stub. In a storage system that executes HSM using stubs, information relating to a higher tier, which is a data migration source, is recorded during data migration. The stub in the higher tier is correctly restored using the higher-tier information thus recorded. The stub is restored, and inconsistency between information in the HSM layers is resolved. | 02-17-2011 |
20120101973 | STORAGE SYSTEM AND ITS OPERATION METHOD - Predicting whether a file migration will be executed successfully or not. | 04-26-2012 |
20120254107 | HIERARCHICAL MANAGEMENT STORAGE SYSTEM AND STORAGE SYSTEM OPERATING METHOD - The storage system eliminates inconsistency between a stub, and a file data storage location indicated by the stub. In a storage system that executes HSM using stubs, information relating to a higher tier, which is a data migration source, is recorded during data migration. The stub in the higher tier is correctly restored using the higher-tier information thus recorded. The stub is restored, and inconsistency between information in the HSM layers is resolved. | 10-04-2012 |
20130144844 | COMPUTER SYSTEM AND FILE SYSTEM MANAGEMENT METHOD USING THE SAME - The present invention provides a computer system capable of providing the latest statistics on a file system in real time. The computer system includes a memory having a program for executing statistics on a file system, and a controller for executing the program. When the file system is accessed, the controller compares first statistic information before access processing on the file system with second statistic information after the access processing; and if it is determined that any difference exists between the first statistic information and the second statistic information, the controller updates the statistic result of the file system based on the difference. | 06-06-2013 |
20140018062 | WIRELESS COMMUNICATION SYSTEM, MOBILE STATION, BASE STATION, AND WIRELESS COMMUNICATION METHOD - The mobile station receives a wireless signal containing a transmission signal of the macro base station and a transmission signal of the home base station. The mobile station includes a control information receiving unit and a reception processing unit. The control information receiving unit receives first control information used for a process of receiving the transmission signal of the macro base station and second control information used for a process of receiving the transmission signal of the home base station. The reception processing unit demodulates and decodes a signal based on the first control information, where the signal is obtained by reducing a component of the transmission signal of the home base station from the wireless signal by using information obtained by demodulating and decoding the transmission signal of the home base station based on the second control information. | 01-16-2014 |
20140022979 | WIRELESS COMMUNICATION METHOD, RELAY NODE, AND BASE STATION - A wireless communication method includes: receiving, at a second apparatus wirelessly connected to a first apparatus, a signal containing a signal from the first apparatus; calculating a receiving weight matrix based on the received signal and a channel matrix that is for communication between the first apparatus and the second apparatus; and multiplying the received signal by the receiving weight matrix. | 01-23-2014 |
Patent application number | Description | Published |
20090092515 | HIGH STRENGTH THICK STEEL PLATE SUPERIOR IN CRACK ARRESTABILITY - The present invention provides high strength thick steel plate superior in crack arrestability high in strength, free of deterioration of HAZ toughness, and free of anisotropy, that steel plate containing, by mass %, C: 0.03 to 0.15%, Si: 0.1 to 0.5%, Mn: 0.5 to 2.0%, P: ≦0.02%, S: ≦0.01%, Al: 0.001 to 0.1%, Ti: 0.005 to 0.02%, Ni: 0.15 to 2%, and N: 0.001 to 0.008% and having a balance of iron and unavoidable impurities as chemical components, having a microstructure of a ferrite and/or pearlite structure with bainite as a matrix phase, and having an average circle equivalent diameter of crystal grains with a crystal misorientation angle of 15° or more of 15 μm or less in the regions of 10% of plate thickness from the front and rear surfaces and of 40 μm or less in the other region including the center part of plate thickness. | 04-09-2009 |
20130334435 | LUBRICANT DISTRIBUTION ACQUISITION DEVICE AND LUBRICANT DISTRIBUTION ACQUISITION METHOD - In this lubricant distribution acquisition device ( | 12-19-2013 |
20130341524 | LUBRICANT DISTRIBUTION ACQUISITION DEVICE AND LUBRICANT DISTRIBUTION ACQUISITION METHOD - The direction of the main axis of a bearing is adjusted by turning a supporting base ( | 12-26-2013 |
20130342685 | LUBRICANT DISTRIBUTION ACQUISITION DEVICE AND LUBRICANT DISTRIBUTION ACQUISITION METHOD - In this lubricant distribution acquisition device ( | 12-26-2013 |
20130343633 | BEARING, LUBRICANT DISTRIBUTION ACQUISITION DEVICE AND LUBRICANT DISTRIBUTION ACQUISITION METHOD - A bearing (X) inside which a lubricant is able to be sealed is provided with: a rotary motion body (X | 12-26-2013 |
20150288762 | FILE STORAGE SYSTEM AND METHOD FOR MANAGING USER DATA - The present invention provides a system, wherein when operations such as a deleting of an ID or a changing of a group to which an ID belongs is carried out, the data range within the file system influenced by the operation is efficiently specified from the enormous amount of data within the file system, and with the aim to prevent retention of data whose owner has become absent or loss of authority to execute management operations, the file storage system records the hierarchical relationship of users and groups capable of accessing respective file sharing directories, so as to specify the range influenced by the operation performed to IDs in the ID management server, carry out a searching operation targeting only the file sharing directory being influenced within the file system, specify files and directories whose owners have become absent, and carry out processes such as deleting or transferring of ownership. | 10-08-2015 |
20160073742 | FASTENER MEMBER, FASTENER STRUCTURE, AND SUPPORT MEMBER - The inventive fastener member, fastener structure, and support member can reduce rattling and noise without reducing the ease of assembly. The fastener member | 03-17-2016 |
Patent application number | Description | Published |
20080229151 | Electronic control unit - An ECU that controls an engine of a vehicle includes a MPU and an IC that monitors the operation of the MPU. The MPU is programmed to execute a verification result check and test selection function for selecting a test for verifying the function of the MPU. The MPU runs the selected test, and transmits a test result indicating the result of the test to the IC. The IC checks whether the test result from the MPU is correct or incorrect, and transmits a verification result to the MPU. | 09-18-2008 |
20110153180 | ELECTRONIC CONTROL UNIT FOR CONTROLLING ELECTRICALLY DRIVEN LOADS IN ENHANCED FAIL SAFE MANNER - A first judgment circuit and a second judgment circuit are adapted to set a judging signal high when a judgment data sent from a microprocessor indicates failure. The high level judging signal triggers a forced idle command connected to a motor driver, to be high level whereby the motor is forcibly suspended. Subsequently, when a reset command is accidentally transmitted by the microprocessor due to an unexpected fault, a first judging signal from the first judgment circuit is reset to low level. However, a second judging signal from the second judgment circuit remains high level. As a result, the forced idle command stays high level. | 06-23-2011 |
20120323386 | ELECTRIC POWER SUPPLY SYSTEM - An electric power supply system has, as multiple storage units, an output type battery of high output and small capacity and a capacity type battery of low output and large capacity. The charge-discharge electric power of each of the storage units is controlled by a controller according to a charge-discharge schedule for a prediction period. Based on a predicted power consumption schedule, a predicted power generation schedule, and a charge-discharge characteristic of each of the storage units, the controller determines a charge-discharge schedule with regards to an optimal evaluation index, and controls the storage units in accordance with the charge-discharge schedule. | 12-20-2012 |
20120326654 | STORAGE BATTERY - A storage battery has at least battery banks, switching units, a charging terminal, a discharging terminal and a battery management unit. The battery banks form a bank structure. Each switching unit electrically connects a group of the battery banks with either the charging terminal or the discharging terminal, and disconnects the group of the battery banks from the charging terminal or the discharging terminal. The battery management unit instructs the switching units to electrically and simultaneously connect one or more battery banks to the charging terminal during charging, and to electrically and simultaneously connect one or more battery banks to the discharging terminal during discharging. | 12-27-2012 |
20120326667 | BATTERY CHARGING SYSTEM FOR VEHICLE AND BATTERY CHARGE CONTROLLER IN THE SAME - A battery charging system for a vehicle, capable of charging a vehicle battery pack properly in a short time even during driving a vehicle-mounted electrical load. The battery charging system includes the battery pack mounted in the vehicle, the vehicle-mounted electrical load that can be driven by a current from the battery pack, and a battery charge controller that controls charging of the battery pack. When the battery pack is charged by using an external battery charger during operation of the load, the battery charge controller requires the external battery charger to supply a sum current that is a sum of a current for charging the battery pack and a current for driving the load to the vehicle. | 12-27-2012 |
20130024035 | POWER SUPPLY SYSTEM - A power supply system for supplying a grid power to a building includes a power generator, a power storing device, and a power controller. The power generator generates off-grid power from a predetermined energy. The power storing device stores the grid power and the off-grid power and supplies the stored power to the building. The power controller controls consumptions of the grid power and the off-grid power. The power controller calculates predicted consumption data related to power consumed in the building and predicted generation data related to power generated by the power generator. The power controller calculates a charging-discharging schedule for the power storing device based on the predicted consumption data and the predicted generation data by formulating the charging-discharging schedule as a mixed integer programming problem. | 01-24-2013 |
20140025214 | ELECTRIC POWER CONTROL APPARATUS - A power control apparatus includes: a power supply device including multiple power supply elements; a power consumption device; a battery independently arranged from the power supply device and the power consumption device; a supply and consumption balance adjustment device for controlling the power supply device and the battery to supply the electric power to the power consumption device; a prediction device for predicting electric power supply from at least a part of multiple power supply elements and electric power consumption of the power consumption device; a guard value setting device for setting a guard value of a charging and discharging operation of the battery according to a prediction result of the prediction device; and an output device for outputting the guard value to the supply and consumption balance adjustment device. | 01-23-2014 |
20140094981 | AVAILABILITY PREDICTION APPARATUS FOR ELECTRIC POWER STORAGE DEVICE - An availability prediction apparatus includes an access section that accesses a storage section and a prediction section. The storage section stores availability specified periods occurred before a present time associated with respective frequencies of the availability specified periods, and the access section acquires the availability specified periods from the storage section. The prediction section predicts at least one target availability specified period within a prediction term, which begins at the present time and ends at a time later than the present time by a predetermined term. The prediction section includes a correlating section that correlates the availability specified periods with candidate periods included in the prediction term, and a selection section that specifies and selects one of the candidate periods having a highest occurrence probability as the target availability specified period. | 04-03-2014 |
20140176079 | BATTERY SYSTEM - The controller calculates a first limit based on received information about the battery packs and the schedule for charging and discharging plan, and supplies the first limit which serves as a control command to a master battery management unit (BMU), a master BMU receives the first limit. The master BMU sets and distributes the second limit to each one of local battery management function blocks in the battery packs. As a result, each BMU receives the second limit respectively. Then, the each BMU supplies the third limit to a bidirectional power source circuit, respectively, based on failure information FAIL and capacity information SOC of the battery in the battery pack. | 06-26-2014 |
20160028237 | ELECTRIC POWER SUPPLY SYSTEM CONTROLLER - A controller has a predicting section which computes a predicted electric energy predicted to be supplied from a power distribution grid to the load during an assessment period which is a predetermined period. The controller has a supply electric energy computing section which computes a supply electric power based on the predicted electric energy, the supply electric energy being an electric energy to be supplied to the load from the electric power converter during the assessment period. The controller has a time computing section which computes a discharge time by dividing the supply electric energy by a rated power of the electric power converter. The controller has a control section which controls the electric power converter so that an electric power corresponding to the rated power is supplied to the load only for the discharge time within the assessment period. | 01-28-2016 |
20160043581 | CONTROLLER FOR BATTERY SYSTEM - A target setting portion establishes a target charge/discharge amount which a battery system charges or discharges during a predetermined charge-and-discharge period. A stop selection portion selects the battery device to be stopped based on the target charge/discharge amount. During the predetermined charge-and-discharge period, the battery device which is selected by the stop selection portion is stopped and the other battery devices are charged or discharged. | 02-11-2016 |
20160126741 | STORAGE BATTERY EQUIPMENT - A storage battery equipment includes a converter, a system interconnection inverter, and a controller. The converter extracts direct current power from a storage battery, then converts a voltage of the direct current power and outputs the direct current power. The system interconnection inverter converts the direct current power outputted from the converter into an alternating current power. The controller controls the system interconnection inverter such that an amount of power output from the system interconnection inverter to a load matches a preset target discharge amount. | 05-05-2016 |
Patent application number | Description | Published |
20130062550 | POLYACETAL RESIN COMPOSITION - A polyacetal resin composition obtained by compounding 0.01 to 10.0 parts by weight of sterically hindered phenol (B) and 0.001 to 5 parts by weight of magnesium hydroxide (C) having a BET specific surface area of 20 m | 03-14-2013 |
20140323621 | RESIN COMPOSITION AND SHAPED ARTICLE - A resin composition includes 100 parts by weight of a polyacetal copolymer, the amount of oxyalkylene units having 2 or more carbon atoms contained in the polyacetal copolymer is, per 100 mol of oxymethylene units of the polyacetal copolymer, 0.4 to 17.0 mol, relative to 100 parts by weight of the polyacetal copolymer, 0.01 to 1.0 part by weight of an amine-substituted triazine compound, 0.01 to 5.0 parts by weight of a hindered phenol, 0.001 to 3.0 parts by weight of a hindered amine, and 0.001 to less than 0.005 part by weight of at least one metal-containing compound selected from the group consisting of a hydroxide, an inorganic acid salt, and an alkoxide of an alkali metal or an alkaline earth metal. | 10-30-2014 |
20150112018 | METHOD FOR PRODUCING OXYMETHYLENE COPOLYMER - The present invention is directed to a method for producing an oxymethylene copolymer by subjecting trioxane and 1,3-dioxolane to copolymerization using boron trifluoride or a coordination compound thereof as a catalyst, wherein the copolymerization is conducted in the presence of a steric-hindrance phenol in an amount of 0.006 to 2.0% by weight, based on the weight of the trioxane, using 0.01 to 0.07 mmol of boron trifluoride or a coordination compound thereof as a catalyst, relative to 1 mol of the trioxane, and wherein, at a point in time when the polymerization yield becomes 92% or more, the formed oxymethylene copolymer and a polymerization terminator are contacted to terminate the polymerization. | 04-23-2015 |
20150225536 | POLYACETAL STRETCHED FIBER - The present invention is directed to a polyacetal stretched fiber of a polyacetal resin composition which contains a polyacetal resin and a fatty acid metal salt in an amount of 0.01 to 5 phr relative to the polyacetal resin, wherein the stretched fiber is obtained by stretching a fiber at a temperature of 100° C. or more to a temperature lower than the melting point of a polyacetal resin composition, and the fiber is obtained by melt spinning the polyacetal resin composition, and a fiber assembly comprising the stretched fiber as a main constituent. | 08-13-2015 |
20160090445 | PRODUCTION METHOD FOR OXYMETHYLENE COPOLYMER - A method for the continuous production, at high polymerization yield, of an oxymethylene copolymer having improved thermal stability and formaldehyde emission, while maintaining toughness and rigidity, is provided. Provided is a production method for oxymethylene copolymer, including: a step of carrying out a copolymerization reaction of trioxane and 1,3-dioxolane in an amount of 0.9-2.4 mass % with respect to the trioxane, in the presence of 0.001-0.007 mol % of boron trifluoride and 0.006-2.0 mass % of a sterically hindered phenol with respect to the trioxane; and a step of adding a polymerization terminator to the reaction system at the point in time that the polymerization yield of the copolymerization reaction has reached 92% or above, to terminate polymerization. | 03-31-2016 |
20160102190 | METHOD FOR PRODUCING AN OXYMETHYLENE COPOLYMER - Provided is a method for producing an oxymethylene copolymer having excellent extrusion moldability and reduced voids in a molded article without lowering the inherent performance of an oxymethylene copolymer. Provided is a method for producing an oxymethylene copolymer, including: a step for copolymerizing a monomer raw material containing trioxane and 5-7 mass % of 1,3-dioxolane relative to the trioxane, in the presence of 0.025-0.07 mmol of boron trifluoride per mol of trioxane and 0.006-2.0 mass % of sterically hindered phenol relative to the trioxane; a step for adding a polymerization terminator to the reaction system when the polymerization yield of this copolymer has reached 92% or higher, and terminating polymerization; and a thermal stabilization step for heating and melting the crude oxymethylene copolymer in the presence of 0.05-5 mass % of an antioxidant and 0.005-5 mass % of a nitrogen-containing compound relative to the crude oxymethylene copolymer. | 04-14-2016 |
Patent application number | Description | Published |
20140064110 | METHOD AND SYSTEM FOR LAST GASP DEVICE IDENTIFICATION - A method for device identification includes determining a mass event has occurred in a wireless network from a reception of a plurality of signals each having a last gasp message, sampling a plurality of mapped zones associated with a base station, identifying which mapped zones are associated with a disconnected endpoint in a zone list, determining a length of time of the mass event, and selectively providing the zone list to identify disconnected endpoints based at least upon the length of time of the mass event. Each mapped zone includes a plurality of wireless device endpoints associated with the mapped zone. The sampling includes determining whether any of a subset of the endpoints associated with the given mapped zone are disconnected from the wireless network. | 03-06-2014 |
20140064111 | METHOD AND SYSTEM FOR LAST GASP DEVICE DETECTION - A method is provided for device detection by a base station comprising receiving a plurality of signals over a preamble subframe from an endpoint. The plurality of signals are attempting to access an access group of the preamble subframe. Additionally, the plurality of signals are received on a random access channel using a wireless network. Further, the plurality of signals have a plurality of last gasp messages (LGMs). The method additionally comprises determining an allowable rate of collisions for the plurality of signals and determining an actual rate of collisions for the plurality of signals. The method includes increasing the size of the access group allocated to the plurality of signals having the plurality of LGMs, based on whether the actual rate of collisions exceeds the allowable rate of collisions. | 03-06-2014 |
20140078906 | Fusion of Cellular and Non-Cellular Communications - A method for wireless communications, includes determining capacity of a non-cellular wireless link associated with a wireless broadcast area, determining congestion of a cellular link associated with the wireless broadcast area, determining a sublayer of a protocol of the cellular link based on the determined non-cellular wireless capacity and the determined congestion, dividing cellular data to be sent between a wireless device and a base station using the protocol of the cellular link into protocol data units of the sublayer, encapsulating the protocol data units of the sublayer into transmission units of the non-cellular link, and sending the resulting transmission units of the non-cellular wireless link. | 03-20-2014 |
20140080534 | SIGNALING TO ENABLE NETWORK CONTROLLED TETHERING OF WIRELESS DEVICES - A method of signaling to enable tethering among wireless devices may include receiving, at a master wireless device, assignment information from a wireless communication access point. The assignment information may indicate that the master wireless device is designated as a hotspot for a slave wireless device. The method also may include determining an availability of an open frequency band for wireless communications, communicating an enabling signal to the slave wireless and receiving a confirmation of receipt of the enabling signal. Further, the method may include determining an allocation of a wireless communication resource over the open frequency band for the master wireless device to act as the hotspot for the slave wireless device. The allocation may be based on the confirmation of receipt of the enabling signal and on a parameter requirement associated with the master wireless device acting as the hotspot for the slave wireless device. | 03-20-2014 |
20140092816 | WIRELESS COMMUNICATION WITH MULTIPLE ACCESS POINTS - A wireless device that includes a receiver to receive data transmission scheduling information from a first wireless communication access point and to receive data from a second wireless communication access point according to the data transmission scheduling information. The wireless device may also include a request generator to generate a data transmission request based on the data transmission scheduling information and a transmitter to transmit the data transmission request to the second wireless communication access point. The receiver may receive the data from the second wireless communication access point in response to the data transmission request. | 04-03-2014 |
20140098660 | METHOD AND SYSTEM FOR OPTIMIZED ACCESS OF A PHYSICAL RANDOM ACCESS CHANNEL - A method for optimized access of a physical random access channel (PRACH) includes sampling a plurality of mapped zones associated with a base station. Each of the mapped zones has a plurality of endpoints. The method further includes determining a subset of disconnected endpoints in the given mapped zone where the disconnected endpoints are disconnected from a wireless network. The method also includes estimating a PRACH load based on the subset of disconnected endpoints. Additionally, based on whether the estimated PRACH load is a pre-determined factor larger than an original PRACH allocation, the method includes increasing the PRACH allocation to accommodate reconnection of the subset of disconnected endpoints in the given mapped zone. | 04-10-2014 |
20140161049 | System and Method for User-Over-Control Plane Messaging in a Wireless Network - A method is provided for managing a wireless network traffic by comprising designating a first resource block of a first base station for access by a random access channel (RACH). The method additionally comprises designating a first plurality of random access subframes associated with the first resource block for access by a user-over-control plane message, and receiving a random access signal at the first base station over a subframe from an endpoint. The random access signal is received on the RACH using a wireless network and is attempting to access one of the first plurality of designated random access subframes. Further, the method comprises determining if the random access signal is a user-over-control plane message, and processing the random access signal on the one of the first plurality of designated random access subframes. | 06-12-2014 |
20140169283 | System and Method for Optimized Access Messaging in a Wireless Network - A method is provided for managing wireless network traffic that includes designating a first resource block of a macro base station and a second resource block of a small cell base station for access by a physical random access channel (PRACH). The method further includes designating a first random access subframe associated with the first resource block and a second random access subframe associated with the second resource block for access by a random access channel message. The first random access subframe has a first allocation of random access signatures that are configured to receive a plurality of random access requests. The second random access subframe is time-aligned with the first random access subframe and has a second allocation of random access signatures that are configured to receive a plurality of random access requests. | 06-19-2014 |
20140200012 | RADIO COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, AND RADIO COMMUNICATION METHOD - A radio communication system includes a base station and a mobile station communicating with the base station. The base station includes a selection unit and a first transmitting unit. The selection unit selects an item of identification information for identifying a data series from a plurality of data series corresponding to resources used to transmit a signal that the mobile station uses to measure reception quality. The first transmitting unit transmits the item of identification information. The mobile station includes a receiving unit, a measurement unit, and a second transmitting unit. The receiving unit receives the item of identification information that the first transmitting unit has transmitted. The measurement unit measures the reception quality using a signal of the data series identified by the item of identification information. The second transmitting unit transmits information indicating the reception quality that the measurement unit has measured to the base station. | 07-17-2014 |
20140204779 | WIRELESS COMMUNICATION PRECODER DETERMINATION - According to an aspect of an embodiment, a method of determining a precoder for wireless communications may include acquiring first channel information associated with a first channel between a first node of a wireless communication network and a second node of the wireless communication network. The first node may be configured to transmit a first wireless signal in a wireless communication resource to the second node via the first channel. The method may further include acquiring second channel information associated with a second channel between the first node and a third node of the wireless communication network. The third node being may be configured to receive a second wireless signal transmitted in the wireless communication resource. Additionally, the method may include determining a precoder for transmission of the first wireless signal based on the first channel information and the second channel information. | 07-24-2014 |
20140211713 | WIRELESS COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, AND WIRELESS COMMUNICATION METHOD - A radio communications system includes a base station and a mobile station configured to perform communication with the base station. The base station includes a selection unit and a first transmission unit. The selection unit selects identification information specifying a resource used by the mobile station for transmission of a signal from among a plurality of resources. The first transmission unit transmits the identification information to the mobile station. The mobile station includes a reception unit and a second transmission unit. The reception unit receives the identification information transmitted by the first transmission unit. The second transmission unit transmits the signal to the base station using the resource specified by the identification information. | 07-31-2014 |
20140269494 | NETWORK SUPERVISED WIRELESS DEVICE NEIGHBOR DISCOVERY - A method of discovering neighboring wireless devices may include assigning a discovery channel resource to a transmitting wireless device. The transmitting wireless device may accordingly be configured to transmit a neighbor discovery signal based on the discovery channel resource. The method may further include receiving neighbor discovery signal information associated with the neighbor discovery signal as received by a receiving wireless device that may be configured to receive the neighbor discovery signal. Additionally, the method may include directing the transmitting wireless device and the receiving wireless device to participate in device-to-device communication with each other based on the neighbor discovery signal information. | 09-18-2014 |
20140269528 | NETWORK SUPERVISED DEVICE-TO-DEVICE COMMUNICATION - A method of supervising device-to-device communication may include determining that a first wireless device and a second wireless device are configured to communicate with each other through device-to-device communication as a device-to-device pair. The method may further include assigning a pair identifier to the device-to-device pair. The pair identifier may be configured to allow the device-to-device pair to communicate with each other and an access point of a wireless communication network while protecting from eavesdropping. Further, the method may include directing the first wireless device and the second wireless device to use the pair identifier while participating in the device-to-device communication. | 09-18-2014 |
20140274183 | WIRELESS RESOURCE ALLOCATION OF DEVICE-TO-DEVICE COMMUNICATION - A method of allocating a wireless communication resource to a device-to-device (D2D) pair of wireless devices may include determining an access-point interference threshold of an access point of a wireless communication network. The method may further include determining a device-to-device (D2D) signal power of a D2D signal at the access point. The D2D signal may be associated with D2D communications between a D2D pair of wireless devices. The method may also include assigning a wireless communication resource to the D2D pair based on a comparison of the access-point interference threshold with an access-point interference value where the access-point interference value is based on the determined D2D signal power at the access point. | 09-18-2014 |
20140274192 | POWER CONTROL OF NEIGHBOR DISCOVERY SIGNALS - A method of adjusting power of a neighbor discovery signal may include determining a maximum transmission power of a transmitting wireless device. The transmitting wireless device may be configured to transmit a neighbor discovery signal to one or more receiving wireless devices. The one or more receiving wireless devices may be discovered neighbor wireless devices of the transmitting wireless device and may be configured to receive the neighbor discovery signal. The method may further include determining a power level of the neighbor discovery signal based on the maximum transmission power of the transmitting wireless device and a number of the discovered neighbor wireless devices. | 09-18-2014 |
20140313978 | BASE STATION, RADIO TERMINAL AND RADIO COMMUNICATION SYSTEM - When completing radio communication with a radio terminal, a transmitting unit of a base station transmits to the radio terminal a validity period of control information on radio communication which has been used to communicate with the radio terminal. When starting radio communication with the radio terminal within the validity period, a communication unit of the base station performs radio communication with the radio terminal without performing a process of exchanging control information. When completing radio communication with the base station, a receiving unit of the radio terminal receives a validity period from the base station. When starting radio communication with the base station within the validity period, a communication unit of the radio terminal performs radio communication with the radio terminal without performing a process of exchanging control information. | 10-23-2014 |
20140314024 | RADIO TERMINAL, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD - A communication unit of a radio terminal performs radio measurement of a base station and monitoring of a paging signal within a periodic duration. A controller controls the communication unit so as to perform filtering of the radio measurement within the duration with intervals less than half of the duration. | 10-23-2014 |
20150029989 | WIRELESS COMMUNICATION SYSTEM, WIRELESS BASE STATION, WIRELESS TERMINAL, AND WIRELESS COMMUNICATION METHOD - A wireless communication system including: a wireless base station, and a wireless terminal configured to receive a downlink frame including data and a downlink control signal, the downlink control signal being mapped to a first downlink control resource element, and transmit an uplink frame including an uplink control signal, the uplink control signal being mapped to a first uplink control resource element, the first uplink control resource element being determined by shifting a second uplink control resource element of uplink control resource elements by an offset number whose unit is one of the uplink control resource elements, the second uplink control resource element being determined based on a location of the first downlink control resource element in the downlink frame, the offset number being determined based on a first offset information included in the downlink control signal. | 01-29-2015 |
20150055570 | RESOURCE ALLOCATION IN MACHINE-TO-MACHINE RADIO ACCESS SYSTEMS - A method may include receiving a communication from each of multiple machine-type communication (MTC) devices in a radio access network at a base station. The radio access network and base station may be configured to support the MTC devices and human operated devices. The method may also include determining that the communications are received from the MTC devices and allocating a first set of downlink resources in a downlink channel for future assignment of downlink data communications from the base station to the MTC devices. The method may also include allocating a first set of uplink resources in an uplink channel for future assignment of uplink data communications from the MTC devices to the base station. | 02-26-2015 |
20150078161 | INTERFERENCE MANAGEMENT FOR RADIO NETWORKS - According to an aspect of an embodiment, a method of controlling radio resources includes calculating multiple sets of scaled load estimates based on a single set of initial load estimates associated with estimated radio resource loads of multiple base stations. Each of the sets of scaled load estimates includes the single set of initial load estimates scaled by one of multiple scale factors. The method further includes determining multiple objective function results. Each objective function result is based at least in part on a result of an objective function for an individual set of scaled load estimates of the multiple sets of scaled load estimates. The method further includes determining an operating set of radio resources for multiple base stations based at least in part on the multiple objective function results. | 03-19-2015 |
20150085811 | WIRELESS COMMUNICATIONS SYSTEM, WIRELESS STATION, BASE STATION, AND COMMUNICATIONS METHOD - A wireless communications system includes a base station; and a wireless station. The base station reserves, in advance, a radio parameter that includes at least any one among a frequency resource and communication method used in transmission of uplink data by a first control signal transmitted to the wireless station and upon receiving a second control signal from the wireless station, provides authorization for the transmission of uplink data, by transmitting a third control signal to the wireless station. The wireless station, upon transmitting the second control signal to the base station, uses the radio parameter configured by the first control signal received from the base station to perform transmission of the uplink data to the base station. | 03-26-2015 |
20150098382 | DEVICE-TO-DEVICE WIRELESS COMMUNICATION - A method of device-to-device communication by a wireless device in a wireless communication network may include transmitting a first packet that includes first message data to multiple neighboring wireless devices in the wireless communication network. The method may also include receiving a second packet from one of the multiple neighboring wireless devices. The second packet may be generated by a second wireless device in the wireless communication network that is not one of the multiple neighboring wireless devices. The second packet may include second message data generated by the second wireless device and the first message data. In response to receiving the second packet, the method may further include transmitting a third packet configured to be unicast to the second wireless device. The third packet may include third message data generated by the wireless device. | 04-09-2015 |
20150146677 | RADIO COMMUNICATION METHOD, RADIO COMMUNICATION SYSTEM, RADIO BASE STATION, AND RADIO TERMINAL - A radio communication method including: allocating, by a radio base station, a second radio resource that is to be used in communication among a plurality of radio terminals including a first radio terminal and a second radio terminal, from a first radio resource that is prepared for communication between the radio base station and a radio terminal, and when the second radio terminal has data for the first radio terminal, transmitting, by the second radio terminal, a preparation signal for preparing to transmit the data, using the second radio resource. | 05-28-2015 |
20150208431 | WIRELESS COMMUNICATION SYSTEM, BASE STATION AND WIRELESS TERMINAL - A base station includes a controller to execute a process including grouping a plurality of wireless terminals into one or more groups using at least one of phases of signals and location information of each wireless terminal received from the plurality of wireless terminals, and allocating, to wireless terminals belonging to each group, resources to perform coordinated multi-point transmission by the wireless terminals in each group, a transmitter to transmit an identifier of each group and an allocation result of the resources to each wireless terminal, and a receiver to receive data transmitted from the wireless terminals of each group by the coordinated multi-point transmission. | 07-23-2015 |
20150341806 | RADIO COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, AND RADIO COMMUNICATION METHOD - A radio communication system includes a base station and a mobile station communicating with the base station. The base station includes a selection unit and a first transmitting unit. The selection unit selects an item of identification information for identifying a data series from a plurality of data series corresponding to resources used to transmit a signal that the mobile station uses to measure reception quality. The first transmitting unit transmits the item of identification information. The mobile station includes a receiving unit, a measurement unit, and a second transmitting unit. The receiving unit receives the item of identification information that the first transmitting unit has transmitted. The measurement unit measures the reception quality using a signal of the data series identified by the item of identification information. The second transmitting unit transmits information indicating the reception quality that the measurement unit has measured to the base station. | 11-26-2015 |
20150381396 | RADIO COMMUNICATION SYSTEM, BASE STATION, RADIO COMMUNICATION APPARATUS, AND RADIO COMMUNICATION METHOD - A base station classifies at least some of radio communication apparatuses belonging to the same cell into a plurality of groups. The base station assigns to a first group a first signal sequence that is orthogonal to a cyclically shifted version thereof, and assigns to a second group a second signal sequence that is orthogonal to a cyclically shifted version thereof and that is different from the first signal sequence and from the cyclically shifted version of the first signal sequence. The radio communication apparatus belonging to the first group performs spread modulation on data using the first signal sequence or a signal sequence obtained by cyclically shifting the first signal sequence. The radio communication apparatus belonging to the second group performs spread modulation on data using the second signal sequence or a signal sequence obtained by cyclically shifting the second signal sequence. | 12-31-2015 |