Ntt Docomo, Inc.

Nit Docomo, Inc.

Hiroki Harada

Satoshi Nagata

Kazuki Takeda

Kazuaki Takeda

Jing Wang

Liu Liu

Tomoya Ohara

Huiling Jiang

Daiki Takeda

Hideaki Takahashi

Shimpei Yasukawa

Xiaolin Hou

Lihui Wang

Tooru Uchino

Shohei Yoshioka

Yuki Matsumura

Yuichi Kakishima

Qun Zhao

Hiromasa Fujii

Yoshihisa Kishiyama

Hiroyuki Ishii

Lan Chen

Yousuke Sano

Xin Wang

Hidetoshi Kayama

Takahiro Asai

Wuri Andarmawanti Hapsari

Wei Liu

Yongbo Zeng

Shaozhen Guo

Yukihiko Okumura

Akihito Hanaki

Koji Maeda

Wenbo Wang

Qin Mu

Mingju Li

Chongning Na

Daisuke Murayama

Daisuke Kurita

Ryosuke Osawa

Takuma Takada

Tomoyuki Ohya

Shunji Miura

Shinya Kumagai

Yu Jiang

Naoki Fujimura

Yongsheng Zhang

Weiqi Sun

Hiroto Yasuda

Masaya Okamura

Naoya Shibaike

Juan Liu

Wenjia Liu

Mugen Peng

Takayuki Isogawa

Li Li Zhao

Keisuke Saito

Hiroyuki Kawai

Yusuke Ohwatari

Anxin Li

Akihito Morimoto

Hideyuki Moroga

Yasuhiro Kitamura

Shinpei Yasukawa

Kei Andou

Takahiro Takiguchi

Tomoyuki Ooya

Xufei Zheng

Qiping Pi

Mayuko Okano

Hiromasa Fuji

Naoto Iizasa

Ohya Tomoyuki

Tomoyuki Oya

A terminal including a reception unit that receives configuration information in a high frequency band higher than or equal to a frequency band of a frequency range 2 (FR2), the FR2 being in a range including a frequency range 1 (FR1) that is a low frequency band and the FR2 that is a high frequency band in a new radio (NR) system; and a control unit that configures at least one of a format of a random access preamble, a sequence of the random access preamble, a subcarrier spacing applied to a channel on which the random access preamble is to be transmitted, or a subcarrier spacing applied to an uplink shared channel, based on the configuration information.

Terminal and base station

A terminal according to an aspect of the present disclosure includes: a receiving section that receives a first channel state information (CSI)-reference signal (RS) based on a sequence having a peak-to-average power ratio (PAPR) which is lower than a PAPR of a pseudo-random sequence; and a control section that performs measurement by using the first CSI-RS. It is possible to appropriately perform communication even in a case of utilizing a high frequency band.

Terminal and radio communication method

A BS () receives, from UE (B), terminal location information indicating a location of the UE (B). The BS () selects an antenna beam for the UE (A) to be transmitted from the BS () based on the terminal location information.

Radio base station and terminal

A radio communication node is disclosed including a transmitting/receiving unit that transmits/receives a radio signal to/from an upper node forming an integrated access backhaul; and a control unit that reports, to the upper node, power control information used for transmission power control of a downlink in the upper node.

Radio communication node

A terminal includes: a reception unit configured to receive a block including a synchronization signal and a broadcast channel, a control channel carrying control information, and a shared channel carrying system information by applying single beamforming; and a control unit configured to perform an initial access, based on the system information. The block and one or both of the control channel and the shared channel are frequency-multiplexed, and the control channel and the shared channel are time-multiplexed.

Terminal, base station and communication method

The present disclosure provides a terminal and a base station. The terminal includes: a receiving unit configured to receive first information transmitted via a plurality of first beams; and a transmitting unit configured to transmit measurement results of the first information transmitted via at least a part of the first beams. The receiving unit is further configured to receive second information transmitted via a preferred beam of a plurality of second beams. The preferred beam is determined by a base station from the plurality of second beams according to measurement results of the first information transmitted via more than two first beams.

A radio communication node (B) includes a cell information acquiring unit () that acquires a subcarrier interval to be set and a frequency range to be used; and a control unit () that sets a reference additional time included in a time difference from transmission in a serving cell to reception in the radio communication node and the granularity applied to the reference additional time based on the subcarrier interval and the frequency range.

A terminal transmits and receives a slot configured with a plurality of symbols. The terminal sets a length of a cyclic prefix added to each symbol based on a degree of compression of each symbol in time domain.

Terminal

A terminal includes: a receiving unit of receiving first information for configuring scheduling and second information for executing scheduling from a base station; and a control unit that identifies a single scheduled carrier or a plurality of scheduled carriers, based on the first information and the single second information.

Terminal, base station, and communication method to support scheduling of cells with single control information

A terminal receives a message of a radio resource control layer and assumes the number of repetitions per resource or format of a physical uplink control channel based on the received message.

Terminal and radio base station

A terminal including: a reception unit configured to receive, from a base station apparatus, control information designating a number of continuous slots to which a physical uplink shared channel is assigned, or a number of continuous physical uplink shared channels; and a transmission unit configured, when LBT succeeds at any one of a plurality of candidate start positions in a slot of continuous slots to which the physical uplink shared channel is assigned, to start data transmission by the physical uplink shared channel from a candidate start position at which LBT succeeds.

A terminal according to one aspect of the present disclosure includes a control section that determines a periodicity different from a second periodicity of at least one of a synchronization signal block, a control resource set (CORESET) 0, a physical downlink shared channel for carrying a system information block 1, an update of a physical broadcast channel in the synchronization signal block, and an update of the system information block 1, for a second terminal, the second terminal having at least one of a second bandwidth wider than a bandwidth of the terminal and a second number of antennas greater than the number of antennas of the terminal, and a receiving section that performs reception based on the periodicity. According to one aspect of the present disclosure, initial access can be appropriately performed.

Terminal, radio communication method, and base station

A terminal includes a communication unit configured to transmit and receive a multi-carrier signal in a frequency band equal to or higher than a predetermined frequency, and a control unit configured to determine a first frame structure of the multi-carrier signal, wherein in the first frame structure, at least one of a subcarrier spacing and a number of resource blocks in a maximum channel bandwidth, a CP (cyclic prefix) ratio, and a time unit or a frequency unit of scheduling is different from a second frame structure of the multi-carrier signal in a frequency band equal to or lower than the predetermined frequency.

Terminal and communication method

In one aspect, a terminal includes a receiver that receives system information including configuration information, which is first information, regarding a Physical Uplink Control Channel (PUCCH), and receives a downlink control information including second information regarding the PUCCH, the downlink control information being for at least one of a message in response to a random access preamble and a contention resolution message in a random access procedure. The terminal also includes a processor that controls a transmission of uplink control information based on the configuration information regarding the PUCCH and the second information regarding the PUCCH. The configuration information regarding the PUCCH is configured commonly with the terminal and other terminals, and the second information regarding the PUCCH is configured individually for the terminal and not configured with the other terminals. In other aspects, a radio communication method, a base station, and a system are also disclosed.

Terminal, radio communication method, base station, and system for carrying out a random access procedure

A terminal receives a demodulation reference signal from a network. The terminal assumes the demodulation reference signal to be more aggregated in a frequency direction than in a case where a frequency band including one or a plurality of frequency ranges is used, when a different frequency band differing from the frequency band is used or when a wider subcarrier spacing is applied than the case where the frequency band is used.

Growing community of inventors

Tokyo, Japan

Hiroki Harada