Abstract: A stacked body, including a reflective electrode layer, an intermediate layer having a MgZnO composition, and a semiconductor layer having an AlGaN composition in this order, where a thickness of the intermediate layer is 1-80 nm. An emitting device containing the stacked body. A method of producing the stacked body.

Abstract: A wireless apparatus according to an aspect of the present invention includes an acquisition unit that acquires an index contributing to selection of a link for transmitting a high priority frame among a plurality of links forming multiple links with another wireless apparatus, and a notification unit that notifies the other wireless apparatus of information for selection of the link on the basis of the index.

Abstract: A base station of the embodiment includes a first wireless signal processing unit and a link management unit. The link management unit establishes a link with a first wireless terminal apparatus by using a first wireless signal processing unit. The link management unit causes the first wireless signal processing unit to radiate a wireless signal including a trigger frame in a first cycle. The link management unit, in response to a first trigger frame included in a set of the trigger frames radiated in the first cycle, receives first uplink data and information of a first queue delay time of the first uplink data from the first wireless terminal apparatus, and changes a cycle for causing the first wireless signal processing unit to radiate a wireless signal including the trigger frame from a first cycle to a second cycle shorter than the first cycle in a case where the first queue delay time exceeds the first threshold.

Abstract: A base station of the embodiment includes a first wireless signal processing unit, a second wireless signal processing unit, and a link management unit. The link management unit establishes a multilink with a wireless terminal apparatus by using the first wireless signal processing unit and the second wireless signal processing unit. The link management unit generates a trigger frame for causing the wireless terminal apparatus to transmit uplink data, and causes each of the first wireless signal processing unit and the second wireless signal processing unit to transmit the trigger frame.

Abstract: A base station according to an embodiment of the present disclosure includes a generation unit (35) that generates a beacon including switching information (41) indicating whether to cooperatively use a frequency channel and a transmission unit (32) that transmits the beacon.

Abstract: A wireless apparatus according to one aspect of the present invention includes an acquisition unit configured to acquire a communication quality index indicating communication quality of a link for each of a plurality of links forming a multi-link with another wireless apparatus; and a multi-link control unit configured to determine whether to suspend use of a first link having the lowest communication quality among the plurality of links based on comparison between the communication quality index for the first link and a first threshold.

Abstract: To provide a technique for improving image quality. A light detection apparatus includes: a semiconductor layer including a first surface and a second surface mutually positioned on opposite sides in a thickness direction; a plurality of photoelectric conversion regions provided on the semiconductor layer so as to be adjacent to each other via a separation region that stretches in the thickness direction of the semiconductor layer; a transistor provided for each of the photoelectric conversion regions on the side of the first surface of the semiconductor layer; and a transparent electrode which is provided on the side of the second surface of the semiconductor layer and to which a potential is applied. In addition, the separation region includes a conductor which stretches in the thickness direction of the semiconductor layer and the conductor is electrically connected on the side of the second surface of the semiconductor layer to the transparent electrode.

Abstract: A terminal apparatus includes a determination unit and a transmission unit. The determination unit determines a target of transmission power regulation based on a beacon frame. The transmission unit, in a case where it is determined that the target of regulation is not a transmission power density, transmits a first frame in a first frequency band, and in a case where it is determined that the target of regulation is a transmission power density, transmits a second frame which is a duplicate of the first frame in a second frequency band while transmitting the first frame in the first frequency band.

Abstract: A wireless apparatus according to an aspect of the present invention includes a threshold determination unit that determines a threshold used for determining a usage state of a frequency channel, the threshold determination unit setting the threshold to a first value when a first priority that is a priority of a frame to be transmitted is a first priority level and setting the threshold to a second value higher than the first value when the first priority is a second priority level higher than the first priority level, and a carrier sense control unit that determines the usage state of the frequency channel based on a comparison between reception power of a frame detected on the frequency channel by carrier sense and the threshold.

Abstract: A light emitting device includes: a flip-chip type light emitting element; a sealing portion; and a lens as defined herein, the light emitting element includes an n-type layer, an active layer, an electron blocking layer, a composition gradient layer, a p-type contact layer, and a p-side electrode as defined herein, and a thickness of the composition gradient layer is set such that light directed from the active layer toward the n-type layer and light directed from the active layer toward a side opposite to the n-type layer and then reflected by the p-side electrode toward the n-type layer strengthen each other in a direction perpendicular to a main surface of the light emitting element due to interference.

Abstract: A base station (10) according to an embodiment includes a data processing unit (101) and a wireless signal processing unit (103). The data processing unit (101) generates a MAC frame. The MAC frame includes input data and an identification bit (CB). The identification bit (CB) indicates that data is extended broadcast data. The wireless signal processing unit (103) converts the MAC frame into a wireless signal to distribute the wireless signal.

Abstract: A transmitting station includes a fragmentation unit, a packet number allocation unit, an encryption unit, a wireless signal processing unit, and a retransmission control unit. The fragmentation unit divides data into fragments. The packet number allocation unit allocates a first packet number to the fragments. The encryption unit encrypts the fragments on the basis of the first packet number. The wireless signal processing unit transmits the fragments encrypted as a wireless signal to a receiving station. When retransmitting the data, the retransmission control unit instructs the packet number allocation unit to reset the first packet number to an initial value, requests the receiving station to reset a second packet number managed by the receiving station to an initial value for decryption of the fragments encrypted, and instructs the fragmentation unit to reconfigure an unsuccessfully transmitted fragment.

Abstract: An access point of an embodiment includes first and second wireless signal processing units and a link management unit. The link management unit establishes a multi-link with a first wireless terminal apparatus using the first and second wireless signal processing units. The link management unit is capable of setting at least the multi-link to a first operation mode and sets the first and second wireless signal processing units to an intermittent operation mode in the first operation mode. When the multi-link is set to the first operation mode and first data addressed to the first wireless terminal apparatus is input, the link management unit causes at least one wireless signal processing unit associated with a traffic identifier attached to the first data to transmit a beacon signal including information indicating that the first data has been buffered.

Abstract: A transmitting station which is a station that transmits a wireless signal includes a first wireless signal processing unit, a second wireless signal processing unit, and a transmission timing adjustment unit. The first wireless signal processing unit transmits and receives a wireless signal using a first channel. The second wireless signal processing unit transmits and receives a wireless signal using a second channel different from the first channel. The transmission timing adjustment unit adjusts transmission timings of first data and second data on the basis of a first status associated with the first wireless signal processing unit and a second status associated with the second wireless signal processing unit.

Abstract: A light-emitting element includes a first n-type contact layer, a light-emitting layer that is located on the first n-type contact layer and emits light at a wavelength of not less than 210 nm and not more than 365 nm, a p-type layer that includes AlxGayIn1-x-yN (0?x+y?1, 0?x, y?1) and is located above the light-emitting layer, a second n-type contact layer that includes AlxGayIn1-x-yN (0?x+y?1, 0?x, y?1), is located on the p-type layer and forms a tunnel junction with the p-type layer, an n-electrode connected to the first n-type contact layer, and a p-electrode connected to the second n-type contact layer. Band gaps of the p-type layer and the second n-type contact layer are larger than a band gap of the light-emitting layer.

Abstract: A data processing apparatus (14) according to an embodiment includes a data processing unit (105) and a wireless unit (104). The wireless unit receives the data converted by the data processing unit and wirelessly transmits the input data to an access point. The data processing unit converts, when a remaining amount input from a battery (12) is in a first state, the input data with a first setting and outputs the converted data to the wireless unit. The data processing unit converts, when the remaining amount of the battery is in a second state different from the first state, the input data with a second setting and outputs the converted data to the wireless unit. A capacity per unit time of the data after conversion is different between the first setting and the second setting.

Abstract: A base station of an embodiment includes a first wireless signal processing unit, a second wireless signal processing unit, and a beacon management unit. The first wireless signal processing unit is configured to be able to transmit and receive a wireless signal using a first channel. The second wireless signal processing unit is configured to be able to transmit and receive a wireless signal using a second channel different from the first channel. The beacon management unit manages transmission of a beacon of the first wireless signal processing unit so that the first beacon is periodically transmitted from the first radio signal processing unit, and manages transmission of a beacon of the second wireless signal processing unit so that the first beacon and a second beacon including information simplified than information included in the first beacon are periodically switched and transmitted from the second wireless signal processing unit.

Abstract: A transmitting station (TX) of an embodiment includes first and second radio signal processing units (STA1 and STA2) and a link management unit (LM). The link management unit establishes multi-link with a receiving station by using the first and second radio signal processing units, and manages communication using the multi-link. The link management unit distributes a plurality of data units to the first and second radio signal processing units. The first radio signal processing unit transmits a first data unit group among the plurality of data units to the receiving station, and transmits first information indicating the sequence number of the data unit included in the first data unit group to the receiving station.

Abstract: A wireless apparatus according to one aspect of the present invention includes a reception unit configured to receive, on a frequency channel, a frame including first identification information for identifying the priority level of the frame, and a carrier sensing control unit configured to determine a threshold based on the first identification information, and determine a usage state of the frequency channel based on a comparison between received power of the frame and the determined threshold.

Abstract: A method for manufacturing a light-emitting element includes providing the light-emitting element that includes a light-emitting layer with an emission wavelength of not more than 306 nm and a p-type layer including AlGaInN including Mg as an acceptor, and removing hydrogen in the p-type layer from the light-emitting element by irradiating the light-emitting element with ultraviolet light at a wavelength of not more than 306 nm from outside and treating the light-emitting element with heat in a state in which a reverse voltage, or a forward voltage lower than a threshold voltage of the light-emitting element, or no voltage is applied to the light-emitting element. The removing of hydrogen in the p-type layer from the light-emitting element is performed in a N2 atmosphere at not less than 650° C. or in a N2+O2 atmosphere at not less than 500° C.