Ntt Docomo, Inc.

Nit Docomo, Inc.

Hiroki Harada

Satoshi Nagata

Kazuki Takeda

Kazuaki Takeda

Liu Liu

Jing Wang

Tomoya Ohara

Huiling Jiang

Daiki Takeda

Hideaki Takahashi

Daisuke Murayama

Shimpei Yasukawa

Lihui Wang

Tooru Uchino

Xiaolin Hou

Yuichi Kakishima

Shohei Yoshioka

Yuki Matsumura

Qun Zhao

Hiromasa Fujii

Ryosuke Osawa

Daisuke Kurita

Takuma Takada

Tomoyuki Ohya

Shunji Miura

Yoshihisa Kishiyama

Yu Jiang

Naoki Fujimura

Shinya Kumagai

Hiroyuki Ishii

Yousuke Sano

Xin Wang

Lan Chen

Hidetoshi Kayama

Wei Liu

Yongbo Zeng

Shaozhen Guo

Yongsheng Zhang

Hiroto Yasuda

Masaya Okamura

Takahiro Asai

Yukihiko Okumura

Akihito Hanaki

Wenbo Wang

Mugen Peng

Takayuki Isogawa

Koji Maeda

Qin Mu

Mingju Li

Chongning Na

Li Li Zhao

Keisuke Saito

Yusuke Ohwatari

Anxin Li

Juan Liu

Akihito Morimoto

Hideyuki Moroga

Yasuhiro Kitamura

Wenjia Liu

Takahiro Takiguchi

Weiqi Sun

Naoya Shibaike

Naoto Iizasa

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.

Terminal

The present disclosure provides a base station and a terminal. The base station includes: a receiving unit configured to receive precoding matrix indicator information of a first granularity from a terminal; and a processing unit configured to perform channel reconstruction according to the precoding matrix indicator information to obtain a first channel, use a super-resolution network to perform interpolation and denoising processing on a channel having the first granularity to obtain a second channel, and perform downlink precoding on the second channel, wherein the first channel has the first granularity, the second channel has a second granularity, and the second granularity is finer than the first granularity.

Base station and terminal

A user equipment including: a transmission unit that transmits a signal to a base station apparatus using a preconfigured uplink resource; a reception unit that receives a signal from the base station apparatus; and a control unit that starts or restarts a predetermined timer in response to receiving the signal from the base station apparatus.

User equipment, base station apparatus and communication method

A user terminal according to one aspect of the present disclosure includes: a control section that, when capability information that indicates that full power transmission is supported is transmitted, and when a non coherent or partial and non coherent codebook subsets are configured, assumes that downlink control information can indicate a fully coherent codebook subset; and a transmitting section that performs the full power transmission by applying the fully coherent codebook subset to uplink transmission based on the downlink control information. According to one aspect of the present disclosure, it is possible to appropriately control full power transmission.

User terminal and radio communication method

A radio communication method according to an aspect of the present invention includes: receiving, at a first base station, at least a part of downlink control information via a downlink shared channel from a second base station; receiving, at user terminal, downlink control information via a downlink control channel from the first base station; and controlling, at the user terminal, reception of a downlink shared channel from the first base station or transmission of an uplink shared channel to the first base station on the basis of the downlink control information.

A terminal includes a receiving unit that receives control information transmitted on a second cell, the control information including information used to assign a resource for a downlink shared channel reception or a resource for an uplink shared channel transmission in a first cell; and a control unit that determines at least one of a measurement of a channel state information reference signal (CSI-RS), a measurement of a tracking reference signal (TRS), a transmission of a sounding reference signal (SRS), or a transmission of a physical random access channel (PRACH) is triggered, regardless of a content of information other than the information used to assign the resource included in the control information.

Terminal and base station for indicating a resource set to be triggered to enhance system frequency utilization

A terminal includes a receiving unit that receives a configuration on dormancy of one or more secondary cells from a base station through higher layer signaling, and that receives control information including a notification related to dormancy through a physical layer; and a control unit that transitions a secondary cell group configured by the configuration to a dormant state or a non-dormant state on a per secondary cell group basis, based on a specific field included in the control information.

A terminal receives a synchronization signal block (SSB) in a different frequency band different from a frequency band including one or a plurality of frequency ranges. The synchronization signal block (SSB) receives at least one of a plurality of synchronization signal blocks (SSB) having different indexes and transmitted from a network by using the same time position or the same frequency position.

Terminal for performing access to network by using synchronization signal block

Even when multiple beams or transmission reception points are used, mobility is prevented from lowering. A user terminal according to one aspect of the present invention includes: a reception section that receives a plurality of measurement signals employing respectively different measurement resource configurations; a control section that controls measurement out of a measurement signal of the plurality of measurement signals corresponding to resource configuration information included in downlink L1/L2 signaling or selected based on a predetermined condition; and a transmission section that reports a measurement result.

A terminal according to an aspect of the present disclosure includes a control section that assumes a certain restriction being applied to a communication supporting a subcarrier spacing wider than a certain subcarrier spacing, and a transmitting/receiving section that performs transmission/reception processing of the communication based on the certain restriction. According to an aspect of the present disclosure, it is possible to suitably suppress adverse influence of a time taken for communication switching even when a relatively wide subcarrier spacing is used.

Terminal and radio communication method

A terminal includes a receiver that receives configuration information transmitted from a base station in a high frequency band higher than or equal to a frequency band of a Frequency Range 2 (FR2) in a frequency range a New Radio (NR) system formed of a Frequency Range 1 (FR1), which is a low frequency range, and the FR2, which is a high frequency range; and a controller that modifies, based on the configuration information, an interpretation of at least one of a counter DAI and a total DAI in a Downlink Assignment Indicator (DAI) included in control information to be received from the base station.

Terminal for configuring slot offset of uplink or downlink channel

When using a different frequency band such as FR4, which is different from a frequency band including FR1 and FR2, the terminal uses a phase tracking reference signal (PTRS) having a different density in at least one of a time direction and a frequency direction to perform transmission or reception of a signal using the PTRS.

A terminal includes a receiver that receives an index that specifies configuration information for transmitting a random access preamble; and a controller that configures, when the receiver receives additional information that specifies a time domain resource for transmitting the random access preamble and the index falls within a specific numerical range, the time domain resource specified by the additional information, the time domain resource being configured by replacing a time domain resource for transmitting the random access preamble included in the configuration information specified by the index with the time domain resource specified by the additional information.

Terminal and transmission method

Growing community of inventors

Tokyo, Japan

Hiroki Harada