IP Library Granted Patent US 12707450
Granted Patent B2
US 12707450 · App. 18/029,999 · Granted Aug 11, 2026

Terminal, radio communication method, and base station

Inventors: Yuki Matsumura (Tokyo, JP); Satoshi Nagata (Tokyo, JP)
Assignee: NTT DOCOMO, INC.
H04W72/1263H04W72/231
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Quick Facts
Patent No.
US 12707450
App. No.
18/029,999
Granted
Aug 11, 2026
Kind
B2
Abstract

A terminal according to one aspect of the present disclosure includes a receiving section that receives a TCI list indicating a plurality of transmission configuration indication (TCI) states applicable to multiple types of channels, that receives an update list indicating a plurality of serving cells, and that receives indication information to indicate one or more TCI states out of the plurality of TCI states in one of the plurality of serving cells, and a control section that applies the one or more TCI states to the multiple types of channels in the plurality of serving cells. According to one aspect of the present disclosure, it is possible to appropriately determine information related to QCL.

Claims (26)

1 . A terminal comprising:

a receiver that receives a transmission configuration indication (TCI) list indicating multiple TCI states applicable to multiple types of channels and signals, receives an update list indicating multiple serving cells, and receives, in one of the multiple serving cells, indication information indicating one or more TCI states out of the multiple TCI states; and

a processor that applies a power control parameter configured for each of the one or more TCI states to uplink (UL) channels and signals among the multiple types of channels and signals in the multiple serving cells,

wherein the TCI list is configured separately for each serving cell of the multiple serving cells.

2 . The terminal according to claim 1 , wherein

the indication information is downlink control information (DCI), and

the DCI indicates a TCI state out of the multiple TCI states.

3 . The terminal according to claim 1 , wherein

the indication information is a medium access control (MAC) control element (CE), and

the MAC CE indicates the one or more TCI states.

4 . The terminal according to claim 2 , wherein a size of the field that indicates the one TCI state included in the DCI is configured by higher layer signaling.

5 . A radio communication method for a terminal, comprising:

receiving a transmission configuration indication (TCI) list indicating multiple TCI states applicable to multiple types of channels and signals, receiving an update list indicating multiple serving cells, and receiving, in one of the multiple serving cells, indication information indicating one or more TCI states out of the multiple TCI states; and

applying a power control parameter configured for each of the one or more TCI states to uplink (UL) channels and signals among the multiple types of channels and signals in the multiple serving cells,

wherein the TCI list is configured separately for each serving cell of the multiple serving cells.

6 . A base station comprising:

a transmitter that transmits a transmission configuration indication (TCI) list indicating multiple TCI states applicable to multiple types of channels and signals, transmits an update list indicating multiple serving cells, and transmits, in one of the multiple serving cells, indication information indicating one or more TCI states out of the multiple TCI states; and

a processor that applies a power control parameter configured for each of the one or more TCI states to uplink (UL) channels and signals among the multiple types of channels and signals in the multiple serving cells,

wherein the TCI list is configured separately for each serving cell of the multiple serving cells.

7 . A system comprising a terminal and a base station, wherein

the terminal comprises:

a receiver that receives a transmission configuration indication (TCI) list indicating multiple TCI states applicable to multiple types of channels and signals, receives an update list indicating multiple serving cells, and receives, in one of the multiple serving cells, indication information indicating one or more TCI states out of the multiple TCI states; and

a processor that applies a power control parameter configured for each of the one or more TCI states to uplink (UL) channels and signals among the multiple types of channels and signals in the multiple serving cells,

wherein the TCI list is configured separately for each serving cell of the multiple serving cells, and

the base station comprises:

a transmitter that transmits the indication information.