Abstract: According to one embodiment, a communication system includes a base station based on a communication standard and an allocation information generation device from the base station. The allocation information generation device comprises first and second generators. The first and the second generators output first and second allocation information until a first time elapses after an allocation request is received. The allocation information generation device transmits, to the base station, one of the first and the second allocation information which satisfies a constraint defined by the communication standard.

Abstract: According to one embodiment, a wireless communication system includes a base station, a first allocation determination device, and a second allocation determination device. The base station is capable of wirelessly communicating with terminal devices each having either a first characteristic or a second characteristic. The first allocation determination device determines allocation of communication resources to at least one of the terminal devices. The second allocation determination device determines allocation of communication resources to at least another one of the terminal devices.

Abstract: According to one embodiment, a base station includes a communication circuit and a controller. The communication circuit receives and transmits uplink data and downlink data. The controller calculates a downlink remaining time based on a first time when the communication circuit receives a resource allocation request, a second time when the communication circuit receives the uplink data, a third time when the communication circuit receives the downlink data, and a round-trip delay threshold time, and determines a fourth time when the communication circuit will transmit the downlink data to the terminal based on the downlink remaining time.

Abstract: A system includes a first device with a primary screening area; a second device with a secondary screening area different from the primary screening area; and processor circuitry. The first device includes a first antenna and a first communication device; the second device includes a second antenna and a second communication device. The first antenna irradiates an electromagnetic wave to a target in the primary screening area and receives an electromagnetic wave reflected by the target; the second antenna irradiates an electromagnetic wave to the target in the secondary screening area and receives an electromagnetic wave reflected by the target; and the processor circuitry determines a possibility that the target possesses a predetermined article, based on a level of the electromagnetic wave received by the first antenna, and determines that screening by the second device is required for the target in accordance with the possibility.

Abstract: A wireless communication system can change a subcarrier spacing. The system includes a control device and an allocation determination device. The control device controls wireless communication between the terminal devices and the communication device. The allocation determination device generates allocation information indicating a communication block included in communication blocks, where the allocation information is for at least one of the terminal devices. The control device determines an allocation time for allocating by the allocation determination device. The control device outputs, to the allocation determination device, an allocation request including reference information regarding communication and information regarding the allocation time. The allocation determination device outputs the allocation information regarding the terminal devices to the control device by a reply time before the allocation time using the reference information.

Abstract: According to one embodiment, a base station communicably connected to a wireless terminal is provided. The base station includes a processor and a transmitter. The processor is configured to acquire communication condition information indicating conditions of wireless communication with the wireless terminal. The transmitter is configured to transmit the communication condition information to a system managing a first network slice and a second network slice which can be used by the base station.

Abstract: According to one embodiment, a wireless apparatus determines a state of a first wireless link with a first mobile station and a state of a second wireless link with a second mobile station in a first communication mode, and transmits a first signal to the first and the second mobile stations in accordance with the states of the first and the second wireless links. In response to the first signal, the first communication mode is changed to a second communication mode in which the wireless apparatus communicates with the second mobile station via a direct communication between the first and the second mobile stations.

Abstract: A system includes a first device with a primary screening area; a second device with a secondary screening area different from the primary screening area; and processor circuitry. The first device includes a first antenna and a first communication device; the second device includes a second antenna and a second communication device. The first antenna irradiates an electromagnetic wave to a target in the primary screening area and receives an electromagnetic wave reflected by the target; the second antenna irradiates an electromagnetic wave to the target in the secondary screening area and receives an electromagnetic wave reflected by the target; and the processor circuitry determines a possibility that the target possesses a predetermined article, based on a level of the electromagnetic wave received by the first antenna, and determines that screening by the second device is required for the target in accordance with the possibility.

Abstract: According to one embodiment, an antenna is configured to irradiate a first electromagnetic wave of a wavelength of 1 mm to 30 mm to a first position in an area in which at least one of a target person or a belonging of the target person is present, and irradiate a second electromagnetic wave of a wavelength of 1 mm to 30 mm to a second position in the area. Processor circuitry is configured to obtain a first reflection intensity of the first electromagnetic wave on the first position, and obtain a second reflection intensity of the second electromagnetic wave on the second position, and determine a degree of danger relating to a possibility that the target person possesses a dangerous article.

Abstract: According to one embodiment, a wireless apparatus determines a state of a first wireless link with a first mobile station and a state of a second wireless link with a second mobile station in a first communication mode, and transmits a first signal to the first and the second mobile stations in accordance with the states of the first and the second wireless links. In response to the first signal, the first communication mode is changed to a second communication mode in which the wireless apparatus communicates with the second mobile station via a direct communication between the first and the second mobile stations.

Abstract: According to one embodiment, a base station communicably connected to a wireless terminal is provided. The base station includes a processor and a transmitter. The processor is configured to acquire communication condition information indicating conditions of wireless communication with the wireless terminal. The transmitter is configured to transmit the communication condition information to a system managing a first network slice and a second network slice which can be used by the base station.

Abstract: According to one embodiment, an antenna is configured to irradiate a first electromagnetic wave of a wavelength of 1 mm to 30 mm to a first position in an area in which at least one of a target person or a belonging of the target person is present, and irradiate a second electromagnetic wave of a wavelength of 1 mm to 30 mm to a second position in the area. Processor circuitry is configured to obtain a first reflection intensity of the first electromagnetic wave on the first position, and obtain a second reflection intensity of the second electromagnetic wave on the second position, and determine a degree of danger relating to a possibility that the target person possesses a dangerous article.

Abstract: The purpose of the present invention is to provide a polymer gel that can increase drug content ratio and reduce undesirable influence on gel strength and shape stability after the drug release, compared with the conventional techniques. The purpose can be achieved by an anionic drug-containing medical device comprising: (1) an anionic drug; and (2) a copolymer which contains, as constituents, a cationic monomer comprising a condensation product of an alkyl quaternary ammonium compound having a substituted or unsubstituted aralkyl group and (meth)acrylic acid or a salt of the condensation product and a monomer capable of copolymerizing with the condensation product or the salt of the condensation product.

Abstract: A memory controller according to an embodiment includes a first decoder which calculates first extrinsic value based on a decoding success rate specified using a first table showing a correspondence between first distance information indicating a square Euclidean distance between a first decode word and a first soft input value and a first decoding success rate indicating a probability of a decoding result that the first decode word is correct, and a second decoder which calculates second extrinsic value based on a decoding success rate specified using the second table showing a correspondence second distance information indicating a square Euclidean distance between a second decode word and a second soft input value and a second decoding success rate indicating a probability of a decoding result that the second decode word is correct.

Abstract: According to one embodiment, a wireless communication device includes: a receiver configured to receive a first frame from a first terminal and a second frame from a second terminal; and controlling circuitry configured to obtain quality information of a first channel with the first terminal based on the first frame and quality information of a second channel with the second terminal based on the second frame, and determine a transmission rate applied to the first terminal and a transmission rate applied to the second terminal in spatially multiplexed transmission, based on the quality information of the first channel, the quality information of the second channel and interference amount information being indicative of an amount of interference depending on an execution condition of the spatially multiplexed transmission.

Abstract: According to one embodiment, a wireless communication device includes: a receiver configured to receive a first frame from a first terminal and a second frame from a second terminal; and controlling circuitry configured to obtain quality information of a first channel with the first terminal based on the first frame and quality information of a second channel with the second terminal based on the second frame, and determine a transmission rate applied to the first terminal and a transmission rate applied to the second terminal in spatially multiplexed transmission, based on the quality information of the first channel, the quality information of the second channel and interference amount information being indicative of an amount of interference depending on an execution condition of the spatially multiplexed transmission.

Abstract: A memory controller according to an embodiment includes a first decoder which calculates first extrinsic value based on a decoding success rate specified using a first table showing a correspondence between first distance information indicating a square Euclidean distance between a first decode word and a first soft input value and a first decoding success rate indicating a probability of a decoding result that the first decode word is correct, and a second decoder which calculates second extrinsic value based on a decoding success rate specified using the second table showing a correspondence second distance information indicating a square Euclidean distance between a second decode word and a second soft input value and a second decoding success rate indicating a probability of a decoding result that the second decode word is correct.

Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit a plurality of first frames by multiplexing, the plurality of first frames each belonging to any one of a plurality of groups; and a receiver configured to receive, at timing not temporally overlapping among the groups, a plurality of second frames which are multiplexed, the plurality of second frames each indicating acknowledgement on the first frame belonging to each group.

Abstract: According to an embodiment, a row decoder to perform row decoding by using, as row soft input information, a row received word read as soft determination information from a non-volatile memory and to calculate row extrinsic information and a column decoder to perform column decoding by using column soft input information, which is a result of adding of the row extrinsic information to a column received word read as soft determination information from the non-volatile memory, and to calculate column extrinsic information are included. The row decoder includes a first decoder for first decoding, a second decoder for second decoding a decoding method of which is different from that of the first decoding, and a selection unit to select a decoded result based on accuracy of a decoded result of the first decoding and that of a decoded result of the second decoding and to calculate the row extrinsic information.

Abstract: The purpose of the present invention is to provide a polymer gel that can increase drug content ratio and reduce undesirable influence on gel strength and shape stability after the drug release, compared with the conventional techniques. The purpose can be achieved by an anionic drug-containing medical device comprising: (1) an anionic drug; and (2) a copolymer which contains, as constituents, a cationic monomer comprising a condensation product of an alkyl quaternary ammonium compound having a substituted or unsubstituted aralkyl group and (meth)acrylic acid or a salt of the condensation product and a monomer capable of copolymerizing with the condensation product or the salt of the condensation product.