Abstract: A solid electrolyte according to the present disclosure is represented by the following compositional formula (1). Li7-2x-zLa3(Zr2-x-zWxMz)O12??(1) In the formula (1), x and z satisfy 0.10?x?0.60 and 0.00<z?0.25, and M is at least one type of element selected from the group consisting of Nb, Ta, and Sb.

Abstract: A positive electrode active material composite body according to the present disclosure includes a positive electrode active material containing a transition metal element and having a particulate shape, and an ion conductor provided in contact with a surface of the positive electrode active material, wherein the ion conductor is constituted by a material containing Li, Zr, and M which is at least one type of element selected from the group consisting of Nb, Sb, and Ta, the transition metal element is partially diffused in the ion conductor, and an average decrease ratio of a content ratio of the transition metal element until a point where the content ratio of the transition metal element in the ion conductor to be determined by a characteristic X-ray has reached 12% of the content ratio of the transition metal element at an interface between the positive electrode active material and the ion conductor based on a substance amount is 0.5% or more and 6.1% or less per 1 nm thickness from the interface.

Abstract: The solid electrolyte according to an embodiment of the present disclosure is represented by the following formula (1): Li7?yLa3(Zr2?x?yGexMy)O12??(1) wherein 0.00<x?0.40, 0.00<y?1.50, M is Sb or is Sb and an element of at least one of Nb and Ta.

Abstract: A wireless terminal includes a radio transceiver configured to transmit or receive a radio signal, a storage configured to store first connection identification information about a communication connection between a core network and a first base station of a plurality of base stations and base station identification information identifying the first base station, a controller configured to perform control to transmit the first connection identification information and the base station identification information via the radio transceiver to a second base station when changing a serving cell or a central unit, and perform control to store, in the storage, second connection identification information for identifying the connection setting information received from the second base station.

Abstract: A wireless access system in which a first operator and a second operator share a predetermined band, includes a first base station belonging to the first operator, the first base station configured to transmit broadcast information indicating a priority of the first operator in the predetermined band; and a second base station belonging to the second operator, the second base station configured to perform wireless communication using a band configured based on a priority of the second operator in the predetermined band and the broadcast information transmitted by the first base station.

Abstract: A radio relay device that performs wireless communication with a communication device and a base station device using at least one carrier, the radio relay device includes, an acquisition unit that acquires inter-communication-device information on the wireless communication between the radio relay device and the communication device, and a determination unit that determines the number of carriers between the radio relay device and the communication device on the basis of the inter-communication-device information.

Abstract: A relay device configured to perform wireless communication with a base station device and a terminal device, and to relay data transmission between the base station device and the terminal device, the relay device includes a memory, and a processor coupled to the memory and configured to obtain first information indicating a first communication speed in the wireless communication between the base station device and the relay device and a second communication speed in the wireless communication between the relay device and the terminal device, and control a number of carriers to be used in the wireless communication between the relay device and the terminal device based on the first information so that the number of carriers is increased when the first communication speed is greater than the second communication speed, and the number of carriers is decreased when the second communication speed is greater than the first communication speed.

Abstract: A wireless access system in which a first operator and a second operator share a predetermined band, includes a first base station belonging to the first operator, the first base station configured to transmit broadcast information indicating a priority of the first operator in the predetermined band; and a second base station belonging to the second operator, the second base station configured to perform wireless communication using a band configured based on a priority of the second operator in the predetermined band and the broadcast information transmitted by the first base station.

Abstract: The present invention provides a radio communication system including a radio communication apparatus that can wirelessly communicate at frequencies in a predetermined licensed band and an unlicensed band, and a base station. The base station includes a first processor configure to manage operating states of frequencies in the unlicensed band and notify the radio communication apparatus of operating states of frequencies in the unlicensed band at a frequency in the predetermined licensed band. The radio communication apparatus includes a second processor configured to receive operating states of frequencies in the unlicensed band from the base station at a frequency in a predetermined licensed band, select an unused frequency in the unlicensed band as an operation candidate frequency and transmit a transmission request to the base station at the operation candidate frequency in the unlicensed band.

Abstract: A base station performs wireless communication with a first apparatus, and performs wired communication with a second apparatus. When a first communication speed corresponding to a wireless quality of the wireless communication is higher than a second communication speed of the wired communication, the base station changes a currently set modulation and coding scheme to a modulation and coding scheme corresponding to the second communication speed.

Abstract: A communication device that is capable of communicating with a mobile terminal in cooperation with another communication device, and is capable of communicating with the mobile terminal via the other communication device. This communication device characteristically includes: a mode selecting unit configured to select one of a cooperative communication mode and a relayed communication mode, the cooperative communication mode being for transmitting notification information to the mobile terminal, the notification information being for causing the other communication device to perform a cooperative communication, the relayed communication mode being for causing the other communication device to relay notification information to the mobile terminal; and a mode information transmitting unit configured to transmit mode information to the other communication device, the mode information indicating a result from the mode selecting unit.

Abstract: A communication system includes a base station and a mobile terminal device. The base station includes a detection information notifying unit. The detection information notifying unit notifies, using a predetermined control channel, the mobile terminal device of detection information that includes a power-saving time that indicates a time that elapses before the base station enters a power-saving state. The mobile terminal device includes a detecting unit and a region information notifying unit. The detecting unit, when being notified of the detection information by the detection information notifying unit, detects a region in which a mobile terminal device is not capable of communicating with any base station based on the power-saving time included in the detection information. The region information notifying unit notifies a given base station of information on the region detected by the detecting unit.

Abstract: A wireless communication system including: a terminal, and a base station including an antenna configured to perform wireless communication with the terminal, and a processor configured to perform, when a difference between a first throughput at a radio layer for the wireless communication and a second throughput at an upper layer to the radio layer for the wireless communication is larger than a given value, a processing to decrease errors at a radio layer for the wireless communication.

Abstract: A communication apparatus includes a receiving unit, an extracting unit, a generating unit and a transmitting unit. The receiving unit receives a signal from a first network using a first communication method. The extracting unit extracts, from a signal received via a control channel of the first network, notification information that is broadcast to be notified to a communication apparatus belonging to the first network and also used by a communication apparatus belonging to a second network. Here, the second network uses a second communication method different from the first communication method. The generating unit generates a notification frame used to notify the communication apparatus belonging to the second network of the notification information. The transmitting unit transmits the notification frame to the communication apparatus belonging to the second network.

Abstract: A transmitting station in the radio system performing scheduled transmission to a plurality of user terminals including: a plurality of antennas and a reception unit configured to obtain reception quality information estimated from a pilot channel among information fed back from each of the plurality of user terminals, to determine based on the obtained reception quality information, a transmission system for the plurality of antennas and a transmission unit configured to add a specific bit which identifies the determined transmission system to a scheduler management channel, and to vary contents of the other bit area in the scheduler management channel, as corresponding to the specific bit, and further transmit the scheduler management channel to the plurality of user terminals.

Abstract: A wireless communication device including: a plurality of antennas configured to perform a plurality of wireless communication protocols simultaneously, and a processor configured to obtain each of a plurality of power consumptions for each of the plurality of the wireless communication protocols, to obtain each of a plurality of communication throughput for each of the plurality of the wireless communication protocols, to calculate an aggregated communication efficiency of the wireless communication using the plurality of wireless communication protocols simultaneously based on the plurality of the power consumptions and the plurality of the communication throughput, and to control the plurality of the antennas, when the aggregated communication efficiency exceeds a given value, as to perform the plurality of wireless communication protocols simultaneously, and, when the aggregated communication efficiency is equal to or less than the given value, as to stop one of the plurality of wireless communication pro

Abstract: A relay station capable of communicating with a first base station, a second base station, and a mobile station, includes a relay unit configured to relay communication between the first base station and the mobile station; a receiving unit configured to receive load information concerning the second base station; and a changeover unit configured to change, from the first base station over to the second base station, a communication counterpart of the mobile station, communicating with the mobile station via the relay unit, the communication counterpart being changed based on the received load information.

Abstract: A method of detecting a hole area to be generated in a cover area of a communication system which includes a plurality of base station apparatuses and mobile station apparatuses, includes: measuring received powers from the plurality of base station apparatuses at the mobile station apparatuses, and, based on the received power from the other base station apparatus among a plurality of base station apparatuses other than the base station apparatus which covers a cell in which the mobile station apparatuses are positioned, detecting a hole area to be generated when a signal output from the base station apparatus is stopped.

Abstract: A management device includes a managing unit that manages whether a dedicated access slot different from an access slot is assigned to the mobile terminal unit, the access slot being arbitrarily used by a mobile terminal unit when the mobile terminal unit gets random access to a base station unit, a selecting unit that selects a dedicated access slot which has not been assigned among dedicated access slots managed by the managing unit when having received a priority notification indicating that a mobile terminal unit being a communicating destination of the base station unit is a priority terminal given priority for performing communication, and an instructing unit that instructs the base station unit managed by the management device to reserve the dedicated access slot selected by the selecting unit.

Abstract: A radio communications apparatus transmitting data using multiple antennas is disclosed that includes a data link layer control information generation part configured to generate multiple data link layer control information items from generated data link layer control information; a data unit generation part configured to generate multiple data units to be transmitted through the corresponding antennas, based on the data link layer control information items generated by the data link layer control information generation part, so that the data units include the data link layer control information items; and a physical layer processing part configured to perform adaptive modulation and coding on the data units.