Ntt Docomo, Inc.

Shinya Kumagai

Hiroki Harada

Satoshi Nagata

Shohei Yoshioka

Daisuke Kurita

Daiki Takeda

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

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 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

A terminal receives a master information block and a synchronization signal block from a radio base station, and acquires an offset between the synchronization signal block and a control resource set by using a parameter for quasi co-location derivation included in the master information block. The terminal assumes quasi co-location associated with the synchronization signal block based on the acquired offset.

Terminal

A terminal includes a control unit configured to perform LBT (Listen before talk) in a frequency band above a predetermined frequency, and a transmission unit configured to transmit a signal based on a result of the LBT, wherein the control unit performs the LBT with a mechanism different from LBT performed in a frequency band below the predetermined frequency.

A terminal includes a reception unit configured to receive information for allocating uplink transmission from a base station; a control unit configured to determine a CP extension value in a case where a parameter for calculating the CP extension value is not configured by the base station upon receiving the information; and a transmission unit configured to execute the uplink transmission by applying the determined CP extension value.

Growing community of inventors

Tokyo, Japan

Shinya Kumagai