Ntt Docomo, Inc.

Sony Corporation

Olympus Optical Company, Ltd.

Sony Semiconductor Solutions Corporation

The Furukawa Electric Co., Ltd.

Tokyo Institute of Technology

Furukawa Techno Material Co., Ltd.

Omron Corporation

Keisuke Saito

Satoshi Nagata

Kazuaki Takeda

Kazuki Takeda

Xiaolin Hou

Lihui Wang

Yuichi Kakishima

Kenji Yoshino

Yousuke Sano

Akio Nakada

Akihiro Taguchi

Tomohiro Ishii

Shinji Yamashita

Katsuyuki Saito

Hitoshi Karasawa

Toyoharu Hanzawa

Susumu Takahashi

Shuichi Kimura

Takashi Fukaya

Masao Uehara

Nobuaki Akui

Hiroshi Kajimura

Akihiko Mochida

Toshihiko Hashiguchi

Hideo Tomabechi

Wataru Ohno

Tsuyoshi Tsukagoshi

Shiro Bito

Akira Murata

Minoru Tsuruta

Seiji Kuramoto

Atsushi Kidawara

Iwao Kanamori

Takehiro Kawai

Masahito Goto

Shingo Kato

Shinichiro Okamura

Jun Funazaki

Yasushi Nakamura

Hideki Koyanagi

Mamoru Sawahashi

Hiroki Harada

Yoshihisa Kishiyama

Shinichi Kawano

Chongning Na

Daiki Takeda

Daisuke Sato

Nobuki Furue

Hirokazu Hashimoto

Yoshinao Oaki

Shuichi Takayama

Shinichi Nishigaki

Toshihiko Suzuta

Hideyuki Moroga

Miwa Ichikawa

Kae Okazawa

Keisuke Touyama

Masanori Mikami

Tsuruo Hatori

Manh Tai Nguyen

Sumio Kise

Hiroshi Tazaki

Akio Nakata

Akito Mukaizawa

Soji Ohmae

Kazuhiko Oozeki

Hideki Hosoda

Yasuo Goto

Nobuhiko Washizuka

Takeshi Akabane

Daichi Ueki

Kosuke Hayama

Jiro Kawano

Misato Fujii

Fumiyoshi Yamashita

Tomonari Inamura

Masaki Tahara

Yuri Shinohara

Yasuhiko Oomagari

Hitoshi Mizno

Ryota Morishige

Mitani Ryosuke

A terminal is disclosed including a processor configured to map a phase tracking reference signal, PTRS, to at least one symbol used for an uplink shared channel; and a transmitter configured to perform transmission processing for the uplink shared channel and the PTRS, wherein the processor sets a reference for mapping the PTRS to a second symbol when the transmitter transmits a demodulation reference signal, DMRS, using a first symbol and the second symbol in the uplink shared channel. In other aspects, another terminal and a base station are also disclosed.

Terminals and base station

According to one aspect of the present invention, an apparatus is disclosed including a transmitter that transmits a transport block (TB) using a physical uplink shared channel based on a downlink control information, a processor that applies a same symbol allocation across a plurality of slots when transmission of the TB is carried out over the plurality of slots, and an input apparatus that accepts an input, wherein the TB contains information based on the input. In other aspects, a system including an apparatus and a base station is also disclosed.

Apparatus and system to create a transport block utilizing an input apparatus

A terminal is disclosed including a receiver that receives downlink control information indicating a transmission bandwidth allocated to a downlink shared channel within a bandwidth part, and a processor that determines a size of a precoding resource block group (PRG), to which a same precoding is applied, based on the transmission bandwidth or a subset of the transmission bandwidth. In other aspects, a radio communication method for a terminal is also disclosed.

Transmitting apparatus, receiving apparatus and radio communication method

This user terminal is provided with: a reception unit that receives a downlink signal including a demodulation reference signal; a signal separation unit that separates the demodulation reference signal from the downlink signal; and a channel estimation unit that calculates a channel estimation value by using the demodulation reference signal. The demodulation reference signal is mapped on a resource element set in a transmission pattern selected from a plurality of candidate patterns. The reception unit receives an index indicating the transmission pattern, and the signal separation unit separates the demodulation reference signal by using the transmission pattern specified on the basis of the index.

Terminal and wireless communication method for receiving a demodulation reference signal

A base station apparatus performs communication with a user apparatus and includes a setting unit that arranges a reference signal used for phase correction in a radio frame at a predetermined interval and a transmitting unit that transmits the radio frame to the user apparatus, and, in a case in which the reference signal used for the phase correction is punctured in the radio frame, the reference signal used for the phase correction is arranged in a resource of the radio frame in which the reference signal used for the phase correction is arrangeable.

Base station apparatus and user apparatus

A terminal and base station are disclosed where the terminal includes a receiver that receives a signal of a downlink shared channel and a processor that controls reception of a demodulation reference signal included in the downlink shared channel. The processor controls reception of a demodulation reference signal based on one of a first mapping method or a second mapping method. The first mapping method being a method in which the demodulation reference signal is mapped to a fixed symbol within a slot of the downlink shared channel, and the second mapping method being a method in which the demodulation reference signal is mapped to a top symbol of symbols for which the downlink shared channel is scheduled.

User terminal, base station, and radio communication method for mapping a demodulation reference signal

This user terminal is equipped with a receiving unit which receives, from a base station device, a downlink signal which includes a demodulation reference signal for a plurality of ports multiplexed in the time direction; a control unit which separates, from the downlink signal, the demodulation reference signal for the port assigned to the host device; and a channel estimation unit which calculates a channel estimation value using the separated demodulation reference signal. The control unit specifies the multiplexing method for the plurality of ports selected on the basis of at least one of carrier frequency, propagation environment, user terminal performance and base station performance, and separates the demodulation reference signal according to the specified multiplexing method.

User terminal and channel estimation method

A receiving apparatus is disclosed including a receiver that receives a downlink shared channel using a first allocation that supports a first allocation interval and a first allocation start symbol, and a second allocation that supports a second allocation interval and a second allocation start symbol, the first allocation interval and the first allocation start symbol being different from the second allocation interval and the second allocation start symbol, respectively; and a processor that applies a reference signal configuration type, notified by a higher layer, to a first reference signal used in a downlink shared channel that applies the first allocation, and to a second reference signal used in a downlink shared channel that applies the second allocation. In other aspects, a transmitting apparatus is also disclosed.

Receiving apparatus and transmitting apparatus

Provided is a user terminal which is used in a future wireless communication system which bundles a plurality of slots (sub-frames) in the time direction. When applying bundling, in the leading slot, Additional DMRS (Demodulation Reference Signal) is mapped according to channel quality (factors which lead to a deterioration in quality, such as Doppler shift, propagation environment, etc.), and in second and subsequent slots, the existence of Additional DMRS mapping or the mapping position is selected on the basis of rules concerning Additional DMRS mapping. The control unit () of the user terminal () specifies, in second and subsequent slots, the existence of Additional DMRS mapping and the mapping position on the basis of the aforementioned rules.

Terminal and a base station for mapping or receiving a demodulation reference signal

A terminal is disclosed including a receiver that receives a demodulation reference signal; and a processor that controls reception of the demodulation reference signal based on a parameter related to mapping of the demodulation reference signal, wherein when the parameter is configured to a specific value, a specific multiplexing method for the demodulation reference signal is supported. In other aspects, another terminal is also disclosed.

Terminal, radio communication system, and radio communication method to reduce an increase in signaling overhead

A Ti&#x2014;Ni-based alloy, which has a torsion angle for Interface I that is a junction plane between habit plane variants of a martensitic phase, of less than 1.00&#xb0;; a wire, an electrically conductive actuator, and a temperature sensor, each of which uses that alloy; and a method of producing the Ti&#x2014;Ni-based alloy.

Ti&#x2014;Ni-based alloy; wire, electrically conductive actuator, and temperature sensor, each using this alloy; and method of producing a Ti&#x2014;Ni-based alloy

Provided is a user equipment in a radio communication system including a base station and the user equipment, including a first measuring unit that measures a reception quality or channel information using a first reference signal transmitted in a time interval which is set periodically in a radio frame divided into predetermined time intervals, a second measuring unit that measures a reception quality or channel information using a second reference signal transmitted in a flexibly-selected time interval other than the time interval which is set periodically in the radio frame divided into the predetermined time intervals, and a reporting unit that reports the reception quality or the channel information measured using the first reference signal and the reception quality or the channel information measured using the second reference signal to the base station.

User equipment and measurement method

A terminal is disclosed that includes a receiver that receives a specified signal including a synchronization signal and a broadcast channel and a controller that controls a reception of a demodulation reference signal for a downlink shared channel while assuming that the demodulation reference signal does not collide with the specified signal. In other aspects, a radio communication method for a terminal is also disclosed.

User terminal and radio communication method

Provided is a user terminal to be used in a future wireless communication system which bundles a plurality of slots (sub-frames) in a time direction. When applying bundling, a Front-loaded DMRS (Demodulation Reference Signal) is mapped to the rear of a control channel in a leading slot, and in second and subsequent slots, mapping is carried out on the basis of a rule to prevent conflict between the Front-loaded DMRS and the control channel. A control unit () of a user terminal () stipulates, in second and subsequent slots, the mapping configuration of the Front-loaded DMRS (the existence of mapping and/or the mapping position) on the basis of the aforementioned rules.

User terminal and wireless communication method

A terminal is disclosed including a processor configured to map a phase tracking reference signal, PTRS, to at least one symbol used for an uplink shared channel starting from a leading symbol of the uplink shared channel; and a transmitter configured to perform transmission processing for the uplink shared channel and the PTRS. In other aspects, another terminal and a base station are also disclosed.

Radio transmission device and radio reception device

Growing community of inventors

Tokyo, Japan

Keisuke Saito