Abstract: A polyphenylene ether resin composition includes (A) polyphenylene ether, and (B) a block copolymer including a butadiene block having a molar ratio of a 1,2-bonding structure to a 1,4-bonding structure of 80:20 to 100:0 and a styrene block. The number average molecular weight (Mn) of the component (A) may be 1,000 to 7,000, the weight ratio of the styrene block to the butadiene block in the component (B) may be 10:90 to 80:20, and the weight average molecular weight (Mw) of the component (B) may be 2,000 to 100,000.

Abstract: Provided is a technique that enables more efficient utilization of a communication resource at the occurrence of disconnection of an interface between a base station and a core network or an interface within the core network. A process of receiving an RRC Release that is an RRC message transmitted from a base station and a process of transmitting, to the base station, an RRC Release Complete as a response to the RRC Release are carried out. The RRC Release Complete includes, as an NAS message, a PDU Session Release Complete that is a response to a PDU Session Release Command which is included, as an NAS message, in the RRC Release.

Abstract: A first base station (131) is configured to notify a second base station (132) of frequency accuracy information indicating frequency accuracy of the first base station (131) in a wireless manner or via a backhaul.

Abstract: A first base station (121) is configured to notify a second base station (122) of frame offset information indicating a frame offset equivalent to a first difference between a start timing of a radio frame in a first base station (121) and PPS in a wireless manner or via a backhaul.

Abstract: In order to make it possible to provide a good communication service even when unlicensed spectrum is used, a communication apparatus according to an example aspect of the present disclosure includes an information obtaining unit configured to obtain first control information indicating communication service quality for unlicensed spectrum, and a communication processing unit configured to transmit the first control information to a communication node which communicates in a radio access network.

Abstract: There are provided an ultrasonic waveform data generation unit (123) that generates ultrasonic waveform data representing amplitudes of reflected ultrasonic beams received by a reception unit (132) in time series for each of ultrasonic elements (111) forming reception ultrasonic elements (114), an ultrasonic waveform data processing unit (124) that uses a plurality of origin time adjustment patterns, in which a plurality of relative positional relationships between a phased array probe (110) and a welded portion (210) are set, and performs processing to synthesize pieces of the ultrasonic waveform data each having the adjusted origin time to generate synthesized ultrasonic waveform data according to each of the origin time adjustment patterns, and a defect evaluation unit (125) that evaluates whether or not a defect (211) is present in the welded portion (210) based on the synthesized ultrasonic waveform data.

Abstract: There are provided an ultrasonic waveform data generation unit (123) that generates ultrasonic waveform data representing amplitudes of reflected ultrasonic beams received by a reception unit (132) in time series for each of ultrasonic elements (111) forming reception ultrasonic elements (114), an ultrasonic waveform data processing unit (124) that uses a plurality of origin time adjustment patterns, in which a plurality of relative positional relationships between a phased array probe (110) and a welded portion (210) are set, and performs processing to synthesize pieces of the ultrasonic waveform data each having the adjusted origin time to generate synthesized ultrasonic waveform data according to each of the origin time adjustment patterns, and a defect evaluation unit (125) that evaluates whether or not a defect (211) is present in the welded portion (210) based on the synthesized ultrasonic waveform data.

Abstract: To acquire, by a core network node, information necessary for control of a fixed broadband access network in more cases. An apparatus according to the present disclosure includes a communication processing unit configured to transmit, to a core network node, a first message when a wireless communication apparatus that communicates with a terminal apparatus communicating with a base station is changed from a first wireless communication apparatus to a second wireless communication apparatus, the first message including address information of the second wireless communication apparatus and transport identification information of the second wireless communication apparatus.

Abstract: In order to make it possible to provide a good communication service even when unlicensed spectrum is used, a communication apparatus according to an example aspect of the present disclosure includes an information obtaining unit configured to obtain first control information indicating communication service quality for unlicensed spectrum, and a communication processing unit configured to transmit the first control information to a communication node which communicates in a radio access network.

Abstract: In order to make it possible to provide good communication service when unlicensed spectrum is used, a terminal apparatus according to an example aspect of the present disclosure includes an information obtaining unit configured to obtain quality related information related to achievement status of communication service quality for unlicensed spectrum in unlicensed spectrum, and a communication processing unit configured to transmit the quality related information to a base station or a core network node.

Abstract: A base station includes a storage unit stores a neighbour relation table and a processing unit. The processing unit receives service information of a neighbour cell to its own cell, the service information being transmitted by another base station forming the neighbour cell to the own cell, the service information including at least one of an information element indicating whether the another base station has a function of a wireless LAN (Local Area Network) base station and an information element indicating whether the neighbour cell is a cell for dynamically adding a communication capacity. The processing unit registers the service information of the neighbour cell with the neighbour relation table.

Abstract: A base station apparatus (1) is configured to send a first information element to an inter-base-station gateway (3). The first information element explicitly or implicitly indicates whether a relay operation is necessary. The relay operation is an operation in which the inter-base-station gateway (3) relays a data packet destined for or sent from a radio terminal between the base station apparatus (1) and another base station (2). It is thus, for example, possible to contribute to enabling a base station or an inter-base-station gateway to select whether a relay operation by the inter-base-station gateway should be performed at the time of an inter-base-station handover.

Abstract: A method of handover control, a relay apparatus, and a method for selecting a target cell are provided that make it possible to identify a target cell in a hand-in phase even in a network topology in which relay apparatuses are connected in multiple stages.

Abstract: A wireless base station includes: a communication unit 101 configured to communicate with a mobile station which measures radio quality of a signal transmitted in each of a plurality of cells; an acquisition unit 102 configured to acquire load information related to a load of a network including a wireless base station forming the cell; and a control unit 103. The control unit 103 receives information indicating a measurement result of the radio quality of the signal transmitted in each of the plurality of cells and a state of a battery of the mobile station, from the mobile station via the communication unit, determines a signal, radio quality of which is to be measured by the mobile station, based on the measurement results of the radio qualities and the state of the battery of the mobile station, indicated in the information received, and the load information acquired by the acquisition unit, and notifies the signal determined to be measured to the mobile station via the communication unit.

Abstract: A mobile communication system includes a control device and a base station device. Data communication between the control device and the base station device is conducted using a fixed-length data size and a variable-length data size. The control device transmits information indicating whether a data size of the data communication has a fixed length or a variable length. The base station device receives the information from the control device.

Abstract: The present invention provides a pneumatic tire by which workability when molding a tire and tire durability performance can be enhanced without increasing tire weight when providing a reinforcing layer formed by aligning a plurality of monofilament steel wires and embedding this plurality of monofilament steel wires in rubber. The pneumatic tire of the present invention includes a reinforcing layer formed by aligning a plurality of monofilament steel wires and embedding said monofilament steel wires in rubber. Each of the monofilament steel wires is provided with twisting around an axis thereof, and a wire surface twisting angle ? with respect to an axial direction of the monofilament steel wires is not less than 1°.

Abstract: To acquire, by a core network node, information necessary for control of a fixed broadband access network in more cases. An apparatus according to the present disclosure includes a communication processing unit configured to transmit, to a core network node, a first message when a wireless communication apparatus that communicates with a terminal apparatus communicating with a base station is changed from a first wireless communication apparatus to a second wireless communication apparatus, the first message including address information of the second wireless communication apparatus and transport identification information of the second wireless communication apparatus.

Abstract: In the case where a wireless terminal conducts a handover from a first device to a second device, a communication device of this exemplary embodiment performs communication with the second device and a core network node, in order to notify an appropriate device of information regarding the transfer path of data. The communication device receives control information from the core network node upon the handover. The control information is information regarding the transfer path of data to be transferred from the first device to the second device.

Abstract: A mobile communication system includes a first Home Node B (HNB); a second HNB; and a HNB gateway (HNB-GW) that is connected to a core network, wherein the first HNB is configured to communicate with a user equipment (UE) before a relocation of intra HNB-GW in which the UE is relocated from the first HNB to the second HNB, wherein the second HNB is configured to communicate with a user equipment (UE) after the relocation and send Iu-UP Initialization comprising an RFCI information to the HNB-GW during the relocation, and wherein the HNB-GW is configured to receive the Iu-UP Initialization.

Abstract: A radio communication system, a radio station, a network operation management apparatus, and a network optimization method are provided that can optimize a performance of the entire system even when network optimization is performed individually. In the radio communication system including multiple radio stations (10, 20, 30) and network operation management apparatuses managing the radio stations, network optimization is autonomously performed. A first radio station (10) notifies first optimization information regarding network optimization in a cell (10a) of the first radio station to at least one of another second radio station (20/30) that is different from the first radio station and a network apparatus that manages the second radio station (101).