# US 12,184,358 B2 · Terminal, radio communication method, and base station

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- Number: US 12,184,358 B2
- Document ID: US12184358B2
- Status: Granted
- Kind: B2
- Application number: 17/908,806
- Filed: 2020-03-06
- Published: 2023-03-30
- Granted: 2024-12-31
- Earliest claimed: 2020-03-06
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Yuki Matsumura; Satoshi Nagata; Weiqi Sun; Shaozhen Guo; Jing Wang; Xiaolin Hou
- Web page: https://patentgrep.com/patent/US12184358B2

## CPC

- H04B 7/0404: the mobile station comprising multiple antennas, e.g. to provide uplink diversity
- H04B 7/0602: {using antenna switching (H04B7/0686 takes precedence; antenna beam directivity switching H01Q3/24)}
- H04B 7/0805: {with single receiver and antenna switching (H04B7/0822 takes precedence)}
- H04W 8/24: Transfer of terminal data
- H04W 56/00: Synchronisation arrangements
- H04W 88/02: Terminal devices
- H04B: TRANSMISSION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

According to an aspect of the present disclosure, there is provided a terminal including: a receiving section configured to receive information giving an instruction on activation or deactivation of a panel; and a control section configured to perform control to perform a communication operation using the panel or a communication operation not using the panel after a certain offset period with reference to at least one of a reception timing of the information and a transmission timing of a delivery confirmation signal for the information.

## Claims

### Claim 1

A terminal comprising:
a receiver configured to receive a Medium Access Control Control Element (MAC CE) giving an instruction on activation of a transmission configuration indicator (TCI) state; and
a processor configured to perform control to perform a communication operation using the TCI state after an offset period starting from at least one of a reception timing of the MAC CE and a transmission timing of a delivery confirmation signal for the MAC CE,
wherein the processor determines the offset period based on whether or not a TCI state for use in a communication operation after the offset period is activated.

### Claim 2 (depends on 1)

The terminal according to claim 1, wherein the offset period is determined in at least one unit of a subframe, a slot, a subslot, and a symbol on the basis of a subcarrier spacing of an uplink control channel used to transmit the delivery confirmation signal.

### Claim 3

A radio communication method of a terminal, comprising:
receiving a Medium Access Control Control Element (MAC CE) giving an instruction on activation of a transmission configuration indicator (TCI) state; and
performing control to perform a communication operation using the TCI state after an offset period starting from at least one of a reception timing of the MAC CE and a transmission timing of a delivery confirmation signal for the MAC CE,
wherein the offset period is determined based on whether or not a TCI state for use in a communication operation after the offset period is activated.

### Claim 4

A base station comprising:
a transmitter configured to transmit a Medium Access Control Control Element (MAC CE) giving an instruction on activation of a transmission configuration indicator (TCI) state; and
a processor configured to determine that a communication operation using the TCI state is performed in the terminal after an offset period starting from at least one of a reception timing of the MAC CE and a transmission timing of a delivery confirmation signal for the MAC CE,
wherein the processor determines the offset period based on whether or not a TCI state for use in a communication operation after the offset period is activated.

### Claim 5

A system comprising a terminal and a base station, wherein:
the terminal comprises:
a receiver configured to receive a Medium Access Control Control Element (MAC CE) giving an instruction on activation of a transmission configuration indicator (TCI) state; and
a processor configured to perform control to perform a communication operation using the TCI state after an offset period starting from at least one of a reception timing of the MAC CE and a transmission timing of a delivery confirmation signal for the MAC CE,
wherein the processor determines the offset period based on whether or not a TCI state for use in a communication operation after the offset period is activated, and
the base station comprises:
a transmitter configured to transmit the MAC CE; and
a processor configured to determine that a communication operation using the TCI state is performed in the terminal after an offset period starting from at least one of a reception timing of the MAC CE and a transmission timing of a delivery confirmation signal for the MAC CE.

### Claim 6 (depends on 1)

The terminal according to claim 1, wherein when the TCI state is not activated, the processor determines the offset period by adding a given value.

### Claim 7 (depends on 6)

The terminal according to claim 6, wherein the given value is based on a value corresponding to a capability of the terminal.