Abstract: An object of the present invention is to protect the communication of a legacy terminal while achieving favorable communication rendering the CCA level of a CCA-variable terminal apparatus variable in an environment, premised on CSMA/CA, where the CCA-variable terminal apparatus and a legacy terminal apparatus coexist. A terminal apparatus for performing wireless communication with a base station apparatus includes: a receiving unit that receives a radio signal transmitted from the base station apparatus; a CCA-variable channel information processing unit that acquires first CCA-variable channel instruction information contained in the radio signal and containing information regarding a range of a CCA level that is available on a certain channel and that is used for clear channel assessment; and a higher layer unit that selects, according to the first CCA-variable channel instruction information, a channel to be used.

Abstract: A CCA level is made to be variable efficiently while maintaining the fairness relating to acquisition of a transmission opportunity by wireless terminal apparatuses, and thus efficiency of a radio resource is improved. Provided is a terminal apparatus that performs wireless communication with a base station apparatus, and includes; a MAC frame categorization unit categorizing MAC frames, in each of which media access control header is attached to transmission data, based on a type of MAC frame; and a QoS control unit performing a carrier sense using a first CCA level, in a case where the MAC frame is included in a first category that results from the categorization by the MAC frame categorization unit, and performing the carrier sense using a second CCA level different from the first CCA level, in a case where the MAC frame is included in a second category different from the first category.

Abstract: A terminal apparatus can be notified whether an MU-MIMO signal transmitted from a base station apparatus is linear-precoded or nonlinear-precoded by using effective signaling. According to the present invention, the base station apparatus decides whether the nonlinear precoding is used in an own cell, includes the decided nonlinear precoding setting information in system information or a layer 3 message, and notifies the terminal apparatus of the decided nonlinear precoding setting information by using a physical broadcast channel, a physical downlink share channel, or the like. The terminal apparatus performs a demodulation process for user data destined for the own terminal apparatus based on the nonlinear precoding setting information acquired from the notified system information or layer 3 message.

Abstract: Communication opportunities of existing terminal devices are ensured, in a communication system in which terminal devices capable of using a new CCA level and the existing terminal devices using an existing CCA level coexist, on the premise of CSMA/CA. A communication method of a radio transmission device of the present invention includes a step of signaling information indicating a first CCA section and a second CCA section to the radio reception device. A communication method of a radio reception device of the present invention includes a step of performing the carrier sense based on a first CCA level and a second CCA level, and a step of performing the carrier sense based on the first CCA level, in the first CCA section, based on information indicating the first CCA section.

Abstract: An elevator load weighing system (100) includes a brake assembly (104) configured to apply a braking force that inhibits vertical movement of an elevator car (106), and rotate in response to realizing a torque applied thereto. A position monitoring mechanism (112) is coupled to the brake assembly (104) and is configured to output a position signal in response to a rotation of the brake assembly (104). An electronic elevator control module (102) is configured to determine a zero-torque position of the brake assembly (104) prior to engaging the brake assembly (104). The electronic elevator control module (102) is further configured to detect at least one rotational brake displacement of the brake assembly (104) based on the position signal.

Abstract: A mesh nonwoven fabric which is seamless and excellent in appearance is provided. A seamless mesh nonwoven fabric is prepared by laminating a first mesh film 20 containing stem fibers 20a stretching parallel to each other in a first direction and branch fibers 20b connecting adjacent stem fibers 20a together, and a second mesh film 30 containing stem fibers 30a stretching parallel to each other in a second direction intersecting the first direction and branch fibers 30b connecting adjacent stem fibers 30a.

Abstract: A communication method of a terminal apparatus that performs communications with a base station using a plurality of frequency channels, comprising the steps of: measuring reception quality; selecting part of frequency channels as selection channels from the plurality of frequency channels; generating first information for specifying the selection channels, second information indicating reception quality of the selection channels, and third information indicating one reception quality of whole of the plurality of frequency channels, and transmitting each of the first, second and third information to the base station, wherein the second information indicating the reception quality is information for specifying at least one of a modulation scheme and a coding rate.

Abstract: Communication opportunities of existing terminal devices are ensured, in a communication system in which with CSMA/CA as a premise, terminal devices capable of using a new CCA level and the existing terminal devices using an existing CCA level coexist. A communication method of a radio reception device of the present invention includes receiving a signal of information on a CCA level used for carrier sense from a radio transmission device, determining the CCA level used for the carrier sense based on the signal, and performing the carrier sense, based on the CCA level.

Abstract: Provided are a radio transmission apparatus, a radio reception apparatus, and a communication method capable of realizing a radio LAN system in which user throughput is improved by using OFDMA while suppressing overhead. A radio transmission apparatus of the invention selects any one group from a plurality of groups each indicating a combination of a plurality of radio reception apparatuses, notifies at least a plurality of radio reception apparatuses belonging to the selected group of an identification number assigned in advance to the selected group, and allocates transmission data addressed to the radio reception apparatuses belonging to the selected group to each of a plurality of frequency resources on the basis of order of the radio reception apparatuses, which is determined in advance in the selected group.

Abstract: In a wireless communication system that performs non-linear pre-coding, degradation in transmission performance due to a feedback error is improved. The terminal device according to the present invention is a terminal device which receives radio signals that are space-multiplexed and on which non-linear pre-coding is performed, from a base station device including multiple antennas, the terminal device including: a channel state estimator 53 that estimates channel state information on a channel between the terminal device and the base station device; a terminal antenna module 51 that acquires a linear filter that is calculated in the base station device; and a channel equalization module 57 that performs channel equalization processing on the radio signals that are received at a first point in time, based on the channel state information at a second point in time that precedes the first point in time and on the linear filter.

Abstract: A base station device according to the present invention receives wireless frames transmitted by terminal devices in nearby cells, estimates the state of the propagation channels between the terminal devices in the nearby cells and itself, based on the received signals thereof, and performs precoding on transmission data addressed to terminal devices in its own cell, based on the estimation results of the propagation channel state, and transmits.

Abstract: The present invention provides a technology that sets an offset value with respect to a received power of a reference signal from each of base station apparatuses, taking into consideration a difference between precoding schemes, in a wireless communication system that supports multiple different precoding schemes. The base station apparatus according to the present invention communicates with at least one of terminal apparatuses using the multiple different precoding schemes. The base station apparatus according to the present invention includes a transmission unit that transmits to the terminal apparatus multiple offset values that are to be added by the terminal apparatus to the received power of the reference signal from the base station apparatus, in which the multiple offset values correspond to the multiple precoding schemes, respectively.

Abstract: A rod-shaped magnet is mounted on a rotating unit. The rod-shaped magnet has end surfaces which are oriented in a rotating direction and are magnetized to different magnetic poles. An angle detecting unit including magnetoresistive elements is disposed so as to be offset in a radial direction of a revolution path of the magnet from the revolution path and is configured to detect a change in angle of rotation of the rotating unit by detecting a leakage magnetic field in the vicinity of a side surface of the magnet. Two position detecting units each include magnetoresistive elements and are configured to detect a change in orientation of a magnetic field in the direction of a tangent to the revolution path when facing the rod-shaped magnet and produce a switch output.

Abstract: Provided are a communication system in which a base station apparatus and a terminal apparatus highly efficiently exchange channel state information based on different channel information norms, such a base station apparatus, and such a terminal apparatus. The base station apparatus chooses a channel information norm that the base station apparatus requests the terminal apparatus to conform to, generates control information containing information that designates the channel information norm, and transmits the control information to the terminal apparatus. The terminal apparatus receives the control information, estimates a channel between the terminal apparatus and the base station apparatus, generates channel state information between the terminal apparatus and the base station apparatus on the basis of the control information and the channel, and reports the channel state information to the base station apparatus.

Abstract: In a nonwoven fabric, uniaxially oriented bodies each including a thermoplastic resin layer and first and second adhesive layers respectively stacked on both surfaces of the thermoplastic resin layer and having melting points lower than that of a thermoplastic resin constituting the thermoplastic resin layer are warp-weft laminated with the first or second adhesive layer interposed between the uniaxially oriented bodies in such a manner that orientation axes thereof intersect each other. The nonwoven fabric has a mass per unit area of 5 to 13 g/m2, a layer composition ratio of the first adhesive layer, the thermoplastic resin layer, and the second adhesive layer in each of the uniaxially oriented bodies is 20/60/20 to 30/40/30, and an average value of bending resistances by a cantilever method is less than or equal to 50 mm.

Abstract: A feedback information notification method of the present invention notifies of channel quality information indicating a channel quality during multi-user MIMO transmission at a first feedback timing, and differential channel quality information based on a difference value between a channel quality during the multi-user MIMO transmission and a channel quality indicated by the channel quality information of which notification is most recently sent, at a second feedback timing.

Abstract: Provided are a base station apparatus, a terminal apparatus, a wireless communication system, and an integrated circuit in which the terminal apparatus is able to appropriately combine signals received by a plurality of receive antennas in the wireless communication system for performing nonlinear MU-MIMO transmission. The base station apparatus of the invention has a plurality of antennas, is able to apply nonlinear precoding to data signals addressed to a plurality of terminal apparatuses, and spatially multiplexes and transmit the data signals, and based on the data signals and channel information between the base station apparatus and the terminal apparatuses, searches for a perturbation vector to be added to the data signals, and further calculates a covariance matrix of the signals obtained by adding the perturbation vector to the data signals.

Abstract: A transmitter apparatus to transmit to a plurality of receiver apparatuses a data signal at the same timing and on the same frequency, includes a transmitter unit that transmits a demodulation reference signal addressed to a first receiver apparatus and a demodulation reference signal addressed to a second receiver apparatus different from the first receiver apparatus at the same timing and on the same frequency.

Abstract: An electrochemical cell includes at least a base container, a cell which is accommodated in the base container, a plurality of cell leads which are extension portions of the cell, a pad film which is formed of valve metal on a base bottom surface, and a base-embedded wiring (a via wiring) which is connected to the pad film and is formed in a portion between the base bottom surface and a base lower surface, in which at least one of the cell leads and the pad film are fixed to each other through ultrasonic welding, and when a horizontal distance between a welding portion and the base-embedded wiring in the pad film is set to be L, and tolerance relating to an installation position of the base-embedded wiring is set to be a, L?a×1.3 is established.

Abstract: A transmitting device in a wireless communication includes a control module configured to indicate a method out of a plurality of interpolation methods, each of which interpolates channel values in missing subcarriers based on positions of representative subcarriers, which are selected out of the subcarriers defining a frequency band used in the wireless communication, and values in the representative subcarriers, and a transmitting module configured to transmit information about a selected interpolation method.