Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Panasonic Holdings Corporation

Yuta Seki

Richol Ku

Masayuki Hoshino

Hidenori Matsuo

Ryo Takahashi

Ryuji Muta

Seigo Nakao

Mitsuru Uesugi

Shinji Ueda

Shozo Okasaka

Masahiko Nanri

Eiji Ota

Yasuhiro Hasegawa

Yuma Inaba

A base station includes communication circuitry which, in operation, transmits or receives a reference signal in a plurality of bands using a part of a plurality of antennas, and control circuitry which, in operation, determines which of the plurality of bands to allocate to a terminal, based on a result of measurement using the reference signal.

Base station, terminal, and communication method

A distributed station includes receiver circuitry which, in operation, receives information regarding wireless device switching from a terminal via a first wireless device, and controller circuitry which, in operation, determines, based on the information, switching from the first wireless device to a second wireless device and bandwidth part (BWP) aggregation in the second wireless device.

Distributed station, aggregation station, terminal, and communication method

A master station device includes a processor that outputs a subcarrier modulation signal, and a transmitter that maps an in-phase (I) component and a quadrature-phase (Q) component of the subcarrier modulation signal to an optical signal to be transmitted to a fronthaul.

Master station device, slave station device, and wireless communication system

A transmission device includes a controller configured to apply transmission schemes to respective divisions of a signal to be transmitted to a fronthaul and a transmitter configured to transmit the signal to the fronthaul. The respective divisions include a first division and a second division, and the controller is configured to apply a transmission scheme having higher error tolerance to the first division and a transmission scheme having lower error tolerance to the second division.

Device and method for fronthaul transmission, and device and method for fronthaul reception

A base station determines, based on transmission quality information of a fronthaul and channel quality information of a terminal, a resource and a transmission scheme of the fronthaul assigned to the terminal, and controls, based on determined information, the transmission scheme of a signal to be transmitted to the fronthaul using the determined resource.

Master station device, base station, and communication control method

A control device includes reception circuitry which, in operation, receives control information regarding resources to be allocated to a plurality of distributed units, and control circuitry which, in operation, determines, based on the control information, a distributed unit to which a received signal of uplink is to be transferred among the plurality of distributed units.

Control device and control method

A master station device connected to a secondary station device through a fronthaul includes a first base station signal processor having a first functional split configuration relating to a plurality of base station functional units for a first service type, and a second base station signal processor having a second functional split configuration relating to the plurality of base station functional units for a second service type.

Master station device, secondary station device, and method of controlling communication

In a base station that transmits data to a first terminal in coordination with a coordination-providing base station, and functions as a connection-making base station that instructs the coordination-providing base station on a transmission parameter that is used for coordinated communication, a reception processor receives first CSI between the connection-making base station and the first terminal from the first terminal, and, receives, from each of at least one or more second terminals other than the first terminal, second CSI between the connection-making base station and a second terminal, and third CSI between the coordination-providing base station and at least one second terminal, a CSI estimator configures the third CSI which corresponds to a terminal, to which the first CSI and the second CSI are the closest, of the at least one or more second terminals, as an estimation value of CSI between the coordination-providing base station and the first terminal.

Base station and transmission control method using terminal and coordination-providing base station channel quality information

A base station device includes: a receiver, which, in operation, receives signals from one or more other base station devices in a system using an adjacent frequency band; a searcher, which, in operation, searches for one or more center frequencies of signals from the one or more other base station devices; a selector, which, in operation, selects a synchronization target base station device from which a respective center frequency has been acquired from among the one or more other base station devices; and a controller, which, in operation, sets an operation parameter to establish synchronization with transmission and reception timings of the synchronization target base station device.

Base station device and communication method thereof

A solar cell module includes: two solar cells adjacent to each other, the two solar cells each having a first main surface and a second main surface. At least one solar cell of the two solar cells includes: a plurality of first finger electrodes disposed on the first main surface; a plurality of second finger electrodes disposed on the second main surface; and a plurality of reinforcement lines disposed on the second main surface. The plurality of reinforcement lines are disposed at positions where the plurality of reinforcement lines at least partially overlap the plurality of first finger electrodes, respectively, in a front view of the at least one solar cell, and a first pitch between the plurality of reinforcement lines is different from a second pitch between the plurality of second finger electrodes.

Solar cell module

A wireless communication system includes a plurality of baseband processing apparatuses each of which performs baseband signal processing and outputs a baseband signal, and a wireless apparatus which makes connections to the plurality of baseband processing apparatuses and transmits a radio frequency signal that is obtained by performing radio frequency signal processing on the baseband signal that is output from one of the plurality of baseband processing apparatuses.

Wireless communication system

Multicast transmission and inter-cell interference coordination can be flexibly switched using Multicast-Broadcast Single Frequency Network (MBSFN) subframe without reduction of resource utilization efficiency. A transmission data determination unit determines that a first area is used as either of a first subframe performing multicast transmission or a second subframe performing inter-cell interference coordination based on presence or absence of transmission data in each of the first area which is configured to have at least some subframes among a plurality of MBSFN subframes. Wireless communication IF unit performs a transmission process in the first area according to a determination result.

Base station and transmission method

A base station receives signals transmitted from one terminal in cooperation with another base station and performs synthesis processing of the received signals of the other base station and the received signals of the local base station. In the base station, a determination circuit determines necessity of synthesis processing using the received signals of the local base station at the time of the first transmission of the terminal. A base station-to-base station communication circuit transmits a message requesting forwarding of the received signals to the other base station in a case where the synthesis processing is determined to be necessary and receives the forwarded signals that are forwarded from the other base station at the time of retransmission of the terminal. A synthesis circuit synthesizes the forwarded signals from the other base station and the received signals of the local base station in a case where the synthesis processing is determined to be necessary.

Base station, signal synthesis method, and signal forwarding method

A radio base station apparatus wherein even when a single-base-station transmission and a plural-base-station cooperative transmission are implemented at the same time, the terminal-to-base-station feedback information amount and the inter-cell interference (ICI) can be reduced. A base station uses a first transmission mode, in which only the base station implements a signal transmission, and a second transmission mode, in which the base station implements a cooperative signal transmission together with another radio base station apparatus, to communicate with one or more radio terminal apparatuses. A setting unit sets, as a particular frequency band whose reception quality is to be measured, one of first and second frequency bands that are parts of a band used for communication with the terminals. A deciding unit decides, as the transmission mode for the terminals, one of the first and second transmissions based on the reception quality of the particular frequency band.

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Kanagawa, Japan

Yuta Seki