Sharp Kabushiki Kaisha Corporation

Fg Innovation Company Limited

Other

Tokyo Institute of Technology

Osaka University

Osaka City University

Sbi Pharmaceuticals Co., Ltd.

Nippon Kayaku Kabushiki Kaisha

Takashi Yoshimoto

Ryota Yamada

Osamu Nakamura

Jungo Goto

Yasuhiro Hamaguchi

Kazuyuki Shimezawa

Katsuya Kato

Kozue Yokomakura

Akira Kawaguchi

Takahiko Matsui

Hiroshi Suzuki

Satoshi Suyama

Naoki Okamoto

Kenji Ooshima

Toshizo Nogami

Hiromichi Tomeba

Katsuji Iguchi

Kimihiko Imamura

Hidekazu Tsuboi

Kazuhiko Fukawa

Hiroya Sato

Jun Mori

Koji Hirota

Shinpei To

Minoru Kubota

Hiroaki Ohno

Seiichi Sampei

Shinsuke Ibi

Takashi Yoneda

Ryoutarou Morita

Yoshiteru Matsushita

Yoshiyuki Dejima

Kunio Awazu

Shinpei Toh

Toshiyuki Ozawa

Kazuyoshi Takayama

Jun Kawagishi

Goparan Jagadeesh

Akira Takahashi

A terminal apparatus for communicating with a base station apparatus, the terminal apparatus including: a receiver configured to receive information related to subcarrier spacing for an OFDM signal from the base station apparatus; and a transmitter configured to transmit an uplink data channel to the base station apparatus by using the OFDM signal, based on the information related to the subcarrier spacing. The transmitter generates the OFDM signal by using a plurality of the subcarrier spacings, and the transmitter configures a transmit power of the uplink data channel, based on the subcarrier spacing of subcarriers to which the uplink data channel has been mapped.

Base station apparatus, terminal apparatus, and communication method for base station apparatus and terminal apparatus

Proper use of a sparse code prevents PAPR performance from improperly degrading.

Terminal apparatus and base station apparatus

A base station apparatus receives an uplink shared channel and a reference signal, the uplink shared channel including uplink data, an identifier of a terminal apparatus that has transmitted the uplink data, a first CRC generated from the identifier bits, and a second CRC generated from the uplink data bits. In a case that an error is detected based on the first CRC, the base station apparatus transmits a first NACK by using a control signal associated with the reference signal sequence. In a case that an error is detected based on the second CRC, the base station apparatus transmits a second NACK by using a control signal associated with the identifier indicating the terminal apparatus.

Base station apparatus, terminal apparatus, and communication method for these apparatuses

In a case that a CQI table applied to interpret a CSI report is changed from a first CQI table including modulation schemes up to 64QAM to a second CQI table including modulation schemes up to 256QAM, information on a CQI table selection indicating applicability of the second CQI table and a CSI subframe set indicating subframes for which a CQI table selected in the CQI table is used are transmitted. In a case that the CQI table applied to interpret the CSI report is changed from the second CQI table to a third CQI table including modulation schemes up to 1024QAM, only the information on the CQI table selection indicating applicability of the third CQI table is transmitted.

Base station apparatus, terminal apparatus, and communication method for the same

Provided are a base station apparatus, a terminal apparatus, and a communication method, in a case that uplink data transmission based on orthogonal multiple access and uplink data transmission based on non-orthogonal multiple access coexist in a cell in which many terminal apparatuses present, capable of maintaining a prescribed communication quality for the uplink data. The base station apparatus for communicating with a terminal apparatus configured to support contention based access and non-contention based access transmits, in a case that an uplink data channel received in a non-contention based manner occurs in a subframe including the contention based access region, a contention based transmission configuration change notification with respect to a subframe configured to receive the uplink data channel.

Base station apparatus, terminal apparatus, and communication method therefor

To improve throughput in a communication environment in which a large number of terminal apparatuses access, a receiver receives information indicating whether a radio resource allocated by a base station apparatus is a grant free access resource or a scheduled access resource, as well as transmission power control information in the scheduled access resource and transmission power control information in the grant free access resource; and a transmitter configured to transmit a transmission signal to the base station apparatus. In a case of communicating by using the scheduled access resource, a transmission power control is performed based on the first transmission power control information to transmit the transmission signal. In a case of communicating by using the grant-free access resource, the transmission power control is performed based on the second transmission power control information to transmit the transmission signal.

Terminal apparatus, base station apparatus, and communication method for transmitting resource information and transmission power control information to the terminal device with a grant-free access resource allocation or a scheduled access resource allocation

A base station apparatus for communicating with a terminal apparatus includes: a controller configured to generate first control information specific to the terminal apparatus and second control information addressed to multiple terminal apparatuses, and a receiver configured to receive an uplink physical channel, wherein the receiver receives data which the terminal apparatus transmits without receiving, in the first control information, control information for uplink grant, the first control information indicates semi-static allocation of a radio resource used for transmission of the data, and the second control information indicates dynamic allocation of the radio resource used for transmission of the data.

Base station, terminal apparatus, and communication method with semi-static first control information and dynamic allocation second control information

In a case that a large number of terminal apparatuses that are accommodated by contention-based radio communication technologies share a frequency resource, the number of data signals of the terminal apparatus that are non-orthogonally multiplexed in the spatial domain increases. If terminal apparatuses, of which the number exceeds the number of receive antennas or the spreading factor transmit uplink data at the same time, it is tantamount to a presence of terminal apparatuses using the same spreading code, and inter-user interference becomes a problem. A transmitter for transmitting a data signal to a receiver, includes a transmission processing unit configured to transmit the data signal without receiving control information to permit transmission (UL grant) transmitted by the receiver; a spreading unit configured to spread the data signal; and a transmit power control unit capable of switching a plurality of methods of controlling transmit power of the data signal, wherein the methods of controlling transmit power are switched in accordance with at least one of a spreading factor or a sequence of spreading codes used by the spreading unit for spreading the data signal.

Transmitter and communication method

In a case of a contention-based radio communication technique, it is necessary to identify a terminal apparatus that has performed data transmission among terminal apparatuses sharing frequency resources. There is a problem that it is difficult to identify the terminal apparatus that has performed data transmission in a case with a large number of terminal apparatuses that are non-orthogonally spatial multiplexed. Provided is a transmission device for transmitting a data signal to a reception device, the transmission device including: a transmission processing unit configured to transmit the data signal without performing SR transmission or receiving control information of transmission permission transmitted from the reception device; an identification signal multiplexing unit configured to multiplex an identification signal to an orthogonal resource; and a control information receiving unit configured to receive in advance a transmission parameter relating to transmission of the data signal. The transmission processing unit transmits the identification signal and a data signal in a case that the transmission processing unit repeatedly transmits the same data signal, based on the transmission parameter.

Transmission device, reception device, and communication method

Included are a receiver configured to receive first downlink data mapped to the first component carrier and second downlink data mapped to the second component carrier; and a transmitter configured to transmit a signal for indicating delivery confirmation of the first downlink data and the second downlink data. A timing to transmit the signal for indicating the delivery confirmation is defined by a prescribed number of time slots, and a length of each of the time slots is configured based on a subcarrier spacing of the first component carrier and a subcarrier spacing of the second component carrier.

An optical treatment apparatus includes: a power source unit; a light irradiation module, that irradiates an affected part with light; a spacer that is positioned between the light irradiation module and the affected part; a fixing material that applies pressure to the light irradiation module and fixes the light irradiation module at an installation position; and a shielding material that covers the light irradiation module, in which, in a case where the pressure applied by the fixing material becomes lower than predetermined pressure, supply of current is stopped.

Optical treatment apparatus and fixing tool

The present invention includes: a front-side positive trace (P) disposed on a flexible substrate (); a positive external connection line (P) connected to the front-side positive trace (P) to supply electric power; and LED chips () provided to the flexible substrate () and connected to the front-side positive trace (P), wherein an electric resistance between the positive external connection line (P) and one of the LED chips () which is farthest from the positive external connection line (P) is less than an internal resistance of the one of the LED chips ().

Photoirradiation substrate

To provide a base station apparatus, a terminal apparatus, and a communication method capable of efficiently performing retransmission control for small size data in grant-free multiple access where the base station apparatus accommodates a large number of terminal apparatuses. The base station apparatus for communicating with multiple terminal apparatuses, the base station apparatus including a receiver configured to receive an identification signal identifying a terminal apparatus having transmitted uplink data and the uplink data, and a transmitter configured to transmit a delivery confirmation signal for the uplink data, wherein the delivery confirmation signal includes a bundled delivery confirmation signal for the uplink data received on an identical time resource and an identical frequency resource, and a delivery confirmation signal for each terminal apparatus, the bundled delivery confirmation signal is associated with a parameter shared by the terminal apparatuses having transmitted the uplink data received on the identical time resource and the identical frequency resource, and the delivery confirmation signal for each terminal apparatus is associated with a parameter specific to the terminal apparatus.

Base station apparatus, terminal apparatus, and communication method thereof

The present invention relates to a base station apparatus, a terminal apparatus, and a communication method. In a case that Multi-User Superposition Transmission (MUST) is applied, the transmit power for applying 256 QAM is insufficient. MUST is efficiently applied in an environment in which an MCS table including 256 QAM is configured for use. The base station includes an MCS configuration unit configured to hold a first table including MCS indices that include 256 QAM, and a second table not including 256 QAM, and in a case of performing MUST, configure an MCS not including 256QAM for downlink data of the second terminal, and a PDSCH generating unit configured to generate, by use of MUST, downlink data of the first terminal and downlink data of the second terminal that are generated based on the MCS indices configured.

Base station apparatus, terminal apparatus, and communication method

A terminal apparatus using large FFT points transmits a reference signal such that short OFDM symbols are repeated.

Growing community of inventors

Sakai, Japan

Takashi Yoshimoto