Sharp Kabushiki Kaisha Corporation

Fg Innovation Company Limited

Other

Fujikin Inc.

Osaka University

Tokyo Electron Limited

Kabushiki Kaisha Ultraclean Technology Research Institute

Kabushiki Kaisha Toyota Chuo Kenkyusho

The New Industry Research Organization

Techno Core International Co., Ltd.

Stella Chemifa Kabushiki

Osamu Nakamura

Jungo Goto

Yasuhiro Hamaguchi

Kazunari Yokomakura

Hiroki Takahashi

Takashi Yoshimoto

Tadahiro Ohmi

Ryota Yamada

Nobukazu Ikeda

Hiromichi Tomeba

Seiichi Sampei

Shinsuke Ibi

Yasuyuki Shirai

Takahisa Nitta

Shinichi Miyamoto

Kouji Nishino

Ryousuke Dohi

Seiji Sato

Tomio Uno

Daiichiro Nakashima

Atsushi Matsumoto

Shiro Wakahara

Shohei Yamada

Tomoki Yoshimura

Shimpei To

Toshizo Nogami

Minoru Kubota

Akihiro Morimoto

Yukio Minami

Keiji Hirao

Kazuhiko Sugiyama

Katsuya Kato

Kouji Kawada

Katunori Komehana

Teruo Honiden

Touru Hirai

Masaharu Taguchi

Toshirou Nariai

Masaaki Nagase

Takashi Hayashi

Jungo Gotoh

Takashi Onodera

Yosuke Akimoto

Hiroshi Nakano

Minoru Kobayashi

Osamu Watanabe

Satoshi Kawata

Katsumasa Fujita

Atsushi Shirakawa

Hiroshi Kannan

Masaaki Tsuchimori

Naomichi Okamoto

Shinpei Toh

Hideo Yamamoto

Hiromi Takaoka

Okihiro Sugihara

Toshihiko Yoshida

Kunio Asai

Mitsuo Matsumura

Yoshinobu Okayasu

Shuuji Urabe

Akniobu Teramoto

Naoko Nakamura, Legal Representative

Shigetomo Matsui

Yutaka Iuchi

Taneo Nishino

Shujiro Inui

Taiji Sakai

Masanori Ueyama

Yoshimasa Kawata

Chikara Egami

In a case of configuring multiple configured grants, signal detection in a base station apparatus is efficiently performed. For configured grant scheduling, by configuring a plurality of time offset values, multiple transmission opportunities are generated. To each of the transmission opportunities, a slot retransmission is applied. In a case that multiple transmission patterns are generated due to the plurality of time offsets, transmission is performed by using a transmission pattern, among the multiple transmission patterns, that causes the number of remaining retransmissions to increase.

Terminal apparatus and base station apparatus

A state managing unit configured to control a prescribed communication resource allocating process and a reception processing unit configured to receive a control element (CE) are included. The prescribed communication resource allocating process is a process of allocating a communication resource at a predetermined time interval, and the state managing unit suspends an uplink grant configured for the prescribed communication resource allocating process in a case that the reception processing unit receives an SCell Activation/Deactivation MAC CE for deactivating a secondary cell, or an sCellDeactivationTimer configured for the secondary cell expires, and the state managing unit reinitializes the uplink grant suspended, in a case that the reception processing unit receives the SCell Activation/Deactivation MAC CE for activating the secondary cell after the state managing unit suspends the uplink grant.

Mobile station apparatus and base station apparatus in mobile communication system

To provide a base station apparatus, a terminal apparatus, and a communication method capable of ensuring high reliability and low latency of URLLC. There are included a receiver configured to detect first and second DCI formats and RRC information, and a transmitter capable of data transmission based on any of a first uplink grant to be available via activation by using a radio resource periodicity included in the RRC information and the first DCI format, a second uplink grant to be available via activation by using the radio resource periodicity included in the RRC information and the second DCI format, and a third uplink grant to be available after detection of the second DCI format, wherein multiple DCI formats are detected, the transmitter performs an override, in a case that the third uplink grant overlaps in a time domain with the second uplink grant, and performs an override, in a case that the first uplink grant overlaps in a time domain with the third uplink grant.

Terminal apparatus for transmitting data using uplink grants

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

A receiver configured to receive first information on a configuration of a demodulation reference signal via higher layer signaling and receive downlink control information including second information on transmission of the demodulation reference signal via a physical downlink control channel, and a transmitter configured to transmit the demodulation reference signal and uplink data are included. The transmitter transmits the demodulation reference signal and the uplink data by using a same OFDM symbol based on at least the first information and the second information.

In a case that multiple configured uplink grants are configured in a single serving cell, there is a problem that normal communication cannot be performed unless appropriate control is performed to prevent transmissions in a radio resource (slot) of the same timing. A mobile station apparatus in a communication system including at least a base station apparatus and the mobile station apparatus for which the base station apparatus allocates a normal uplink and a supplementary uplink in a single serving cell, wherein the mobile communication apparatus is configured to configure a configured uplink grant individually for each of the normal uplink and the supplementary uplink, and validate, in a case that the serving cell is activated, one of the configured uplink grant configured for the normal uplink and the configured uplink grant configured for the supplementary uplink and suspend another one.

Base station apparatus and mobile station apparatus

There is a concern that communication failure may occur in a case that the state of a serving cell is not properly managed during communication of SPS or GF. A mobile station apparatus of a communication system including at least a base station apparatus and a mobile station apparatus configured to perform communication by using carrier aggregation that simultaneously uses multiple serving cells configured by the base station apparatus according to an aspect of the present invention, wherein the mobile station apparatus restarts a deactivation timer of a serving cell of the multiple serving cells at a timing indicated by a configured uplink grant configured for the serving cell.

Mobile station apparatus

Repeated transmission in a slot is efficiently performed with less control information. In a case that a parameter related to frequency hopping is configured to intra-slot hopping, a slot is divided into a first section and a second section and at least one demodulation reference signal is mapped to each of the first section and the second section. In a case that a parameter related to PUSCH repetition in a slot is enabled, a first section and a second section are generated according to a criterion identical to a criterion used in a case that information related to the frequency hopping is enabled, at least one demodulation reference signal is mapped to the first section and the second section, two PUSCHs generated from a same transport block are generated, and the two generated PUSCHs are mapped to the first section and the second section.

Terminal apparatus

A terminal apparatus includes a control information detection unit configured to detect first and second DCI, and a transmitter configured to perform UL data transmission based on the first DCI or cancel a resource allocated in the second DCI. A UL grant using the first DCI is detected, when performing UL data transmission based on the UL grant, after the data transmission, a first timer for a corresponding HARQ process is started and a second timer is stopped, and when the first timer expires, the second timer for a HARQ process is started. When cancellation of the UL data transmission using the second DCI is detected, at a timing for the data transmission canceled, the second timer is restarted in a case that the first timer expires and the second timer is running, and the second timer is started in a case that the second timer is not running.

A base station apparatus controls an access scheme for each radio resource by using higher layer signaling such that only signals generated by a same type of a signal generation method are multiplexed for each radio resource.

Communication apparatus

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

A terminal apparatus includes a transmitter configured to transmit PUSCH data and a receiver configured to receive RRC information. The transmitter transmits the PUSCH data by using a resource associated with an HARQ process ID determined by symbol information for transmission of the PUSCH data, a period, and the number of HARQ processes. In a case that the receiver receives no response to the transmission of the PUSCH data with the HARQ process ID after the transmission of the PUSCH data is performed and before a timer included in the RRC information expires, the transmitter transmits new PUSCH data by using the resource associated with the HARQ process ID determined by the symbol information for the transmission of the PUSCH data, the period, and the number of HARQ processes.

Terminal apparatus and communication method

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

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Osaka, Japan

Osamu Nakamura