Ntt Docomo, Inc.

Yuki Matsumura

Satoshi Nagata

Kazuki Takeda

Jing Wang

Xiaolin Hou

Shaozhen Guo

Lihui Wang

Shohei Yoshioka

Yuichi Kakishima

Hideaki Takahashi

Weiqi Sun

Hiroki Harada

Lan Chen

Kazuaki Takeda

Xin Wang

Nadisanka Rupasinghe

Hideyuki Moroga

Masaya Okamura

Wenjia Liu

Tooru Uchino

Min Liu

Ryosuke Osawa

Daisuke Murayama

Huiling Li

Runxin Wang

Haralabos Papadopoulos

Tomoya Ohara

Huan Wang

Yousuke Sano

Takayuki Furuta

Lu Jiang

Yuta Oguma

Syouichi Higuchi

A terminal according to one aspect of the present disclosure includes a receiving section that receives first downlink control information indicating a transmission configuration indication (TCI) state applicable to multiple types of channels, and a control section that applies the TCI state to the multiple types of channels after timing at which specific time passes from an end of operation for any one of transmission of an uplink channel based on the first downlink control information and reception of second downlink control information after the first downlink control information. According to one aspect of the present disclosure, it is possible to appropriately determine information related to QCL.

Terminal, radio communication method, and base station

A terminal according to one aspect of the present disclosure includes a control section that, if scheduling offset between reception of a downlink control channel for communication of downlink control information for scheduling an aperiodic channel state information-reference signal (A-CSI-RS) and reception of the A-CSI-RS is less than a threshold determined on the basis of a reported period value for beam switch, and there is a different downlink signal in the same symbol as the A-CSI-RS, and the A-CSI-RS and the different downlink signal are related to the same control resource set (CORESET) pool index, gives priority to quasi-co-location (QCL) for the different downlink signal; and a receiving section that receives the A-CSI-RS. According to one aspect of the present disclosure, collision between a plurality of channels/signals can be handled appropriately.

A terminal according to an aspect of the present disclosure includes a receiving section that receives a list of a plurality of serving cells, and receives, for one serving cell of the plurality of serving cells, a medium access control-control element (MAC CE) used for activation of a TCI state for a physical downlink shared channel, and a control section that, when the plurality of serving cells include one or more specific serving cells in which at least one transmission configuration indication (TCI) code point is mapped to two transmission configuration indication (TCI) states, maps one or more TCI state IDs indicated by the MAC CE to a TCI code point of one or more serving cells of the plurality of serving cells. According to an aspect of the present disclosure, TCI states can be appropriately updated.

A terminal according to one aspect of the present disclosure includes a receiving section that receives configuration information indicating a plurality of transmission configuration indication (TCI) states applicable to multiple types of channels and that receives indication information indicating one TCI state out of the plurality of TCI states, and a control section that applies the one TCI state to the multiple types of channels and that applies, to an uplink channel out of the multiple types of channels, one power control parameter corresponding to the one TCI state out of a plurality of power control parameters, the plurality of power control parameters being associated with the plurality of respective TCI states. According to one aspect of the present disclosure, it is possible to appropriately determine information related to QCL.

Terminal, radio communication method, base station, and system for configuring TCI states

A terminal according to one aspect of the present disclosure includes a control section that applies, for one Physical Uplink Control Channel (PUCCH) resource, a plurality of spatial relation information (SRI), and a transmitting section that performs transmission of a plurality of PUCCH transmission occasions in the PUCCH resource by using respective spatial domain transmission filters based on the plurality of spatial relation information. According to one aspect of the present disclosure, it is possible to achieve preferable repetitive PUCCH transmission.

Terminal, radio communication method, base station, and system for repetitive PUCCH transmission

A terminal according to one aspect of the present disclosure includes: a receiving section that receives configuration information not including spatial relation information and indicating a physical uplink control channel (PUCCH) resource having a lowest ID; and a control section that controls reception of a physical uplink shared channel (PUSCH) scheduled using downlink control information (DCI) format 0_0.

Terminal, method, base station, and system for determining a spatial relation

A terminal according to one aspect of the present disclosure includes a receiving section that receives DCI based on a specific assumption regarding a size of a sounding reference signal resource indicator (SRI) field of the DCI scheduling a physical uplink shared channel (PUSCH) when a control resource set (CORESET) pool index is configured to at least one CORESET, and a control section that determines spatial relation information for the PUSCH based on at least one of the SRI field and a CORESET pool index of a CORESET in which the DCI is detected. According to one aspect of the present disclosure, UL transmission can be appropriately controlled even in a case where multi-TRPs are used.

A terminal according to an aspect of the present disclosure includes a receiving section that receives a list indicating one or more serving cells, and a control section that applies, when a medium access control-control element (MAC CE) indicating one serving cell ID and a pathloss reference signal ID included in the list is received, the pathloss reference signal ID to a sounding reference signal (SRS) resource set of each of the one or more serving cells. According to an aspect of the present disclosure, a PL-RS can be appropriately updated.

A terminal according to one aspect of the present disclosure includes: a receiving section that receives downlink control information (DCI) including specific information different from a sounding reference signal resource indicator (SRI), and receives mapping between the specific information and a parameter related to uplink shared channel (PUSCH) transmission power control by using higher layer signaling; and a control section that determines a parameter used for the PUSCH transmission power control, based on the specific information and the mapping. According to one aspect of the present disclosure, parameters related to UL transmission power control can be appropriately determined.

A terminal according to one aspect of the present disclosure includes a control section that, when a trigger event related to a given panel occurs, triggers power headroom report (PHR) related to the given panel, and a transmitting section that transmits a Medium Access Control (MAC) control element related to the triggered PHR. The trigger event includes an event in which a periodic timer related to the given panel expires. According to one aspect of the present disclosure, PHR related to a panel can be appropriately triggered/transmitted.

A terminal according to an aspect of the present disclosure includes: a control section that determines a plurality of physical uplink control channel (PUCCH) resources on the basis of downlink control information; and a transmitting section that performs PUCCH repeated transmission by using the plurality of PUCCH resources. According to an aspect of the present disclosure, suitable PUCCH repeated transmission can be implemented.

A user equipment includes a receiver that receives information associated with a TCI state for a PDSCH from a base station apparatus, a controller that individually applies, based on the information associated with a TCI state, configurations associated with a QCL to respective PDSCHs transmitted from a first TRP or panel, or a second TRP or panel, and a communication unit that performs communication via the PDSCHs to which the configurations associated with the QCL are applied. The information associated with the TCI state includes an RRC signaling, a MAC signaling and DCI, the PRO signaling includes multiple TCI states, the MAC signaling activates a number of TCI states applied to the second TRP or panel from among the multiple TCI states, and the DCI has a field indicating, from among the number of activated TCI states, a TCI state for a PDSCH transmitted from the second TRP or panel.

User equipment, base station apparatus and communication method

A terminal is disclosed including a processor that measures for beam management: a Doppler spread or a coherence time associated with a beam and one or more reporting quantities. The terminal also includes a transceiver that reports the Doppler spread or the coherence time. In other aspects, a method for a terminal and a base station are also disclosed.

Doppler spread based beam measurement and reporting for high speed mobility

A terminal according to an aspect of the present disclosure includes a receiving section that performs reception in at least one of a zero power channel state information reference signal (ZP-CSI-RS) resource and a non zero power channel state information reference signal (NZP-CSI-RS) resource configured for a plurality of transmission/reception points, and a control section that controls interference measurement for at least one of a periodic channel state information (CSI) report, a semi-persistent CSI report, and an aperiodic CSI report based on the reception. According to an aspect of the present disclosure, measurement and reporting of CSI for a multi panel/TRP can be appropriately performed.

A method of channel state information (CSI) reporting is disclosed that includes determining, with a user equipment (UE), whether CSI to be reported includes a matrix based on network (NW) triggering and performing, with the UE, CSI reporting based on the determination. The CSI reporting may be periodic, semi-persistent, or aperiodic CSI reporting. The matrix may be W, W, or both. The NW triggering may be explicitly performed using one or more downlink control information (DCI) bits. The NW triggering may be implicitly performed based on a location of DCI detected by the UE. In other aspects, a user equipment is also disclosed.

Growing community of inventors

Tokyo, Japan

Yuki Matsumura