IP Library › Granted Patent US 12695545

Granted Patent B2

US 12695545 · App. 18/576,082 · Granted Jul 28, 2026

Terminal, base station, and communication method with repetition transmission continuation or termination based on a determined condition

Inventors: Tetsuya Yamamoto (Kanagawa, JP); Hidetoshi Suzuki (Kanagawa, JP)

Assignee: Panasonic Intellectual Property Corporation of America

H04L1/08 H04W28/06

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Quick Facts

Patent No.: US 12695545
App. No.: 18/576,082
Granted: Jul 28, 2026
Kind: B2

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Abstract

This terminal is provided with: a transmitting circuit which performs repeated transmission of a signal; and a control circuit which, if a portion of the repeated transmission is not performed, determines whether to continue the repeated transmission or to terminate the repeated transmission, on the basis of whether a determination condition is satisfied.

Claims (77)

1 . A terminal, comprising:

transmission circuitry, which, in operation, performs repetition transmission of a signal in a plurality of slots; and

control circuitry, which, in operation,

determines whether or not to perform the repetition transmission in a portion of the plurality of slots;

determines, in response to determining to perform the repetition transmission in the portion of the plurality of slots, to continue transmission of the repetition transmission after the portion of the plurality of slots;

determines, in response to determining to not perform the repetition transmission in the portion of the plurality of slots, either (i) to continue transmission of the repetition transmission or (ii) to terminate transmission of the repetition transmission after the portion of the plurality of slots, by using a determination condition for determining whether to continue the repetition transmission or to terminate the repetition transmission;

continues the repetition transmission in response to determining to continue transmission of the repetition transmission; and

terminates the repetition transmission in response to determining to terminate transmission of the repetition transmission, wherein,

the determination condition is a condition that uses a threshold relating to the repetition transmission of the signal,

the control circuitry determines to continue transmission of the repetition transmission in a case where a sum of (i) a number of times the signal has been transmitted before the portion of the plurality of slots and (ii) a number of available times for transmission of the signal after the portion of the plurality of slots, is equal to or greater than the threshold, and

the control circuitry determines to terminate transmission of the repetition transmission in a case where the sum is less than the threshold.

2 . The terminal according to claim 1 , wherein:

the determination condition is a condition that uses a specified number of transmission occasions of the signal from a beginning of the repetition transmission,

the control circuitry determines to terminate transmission of the repetition transmission in a case where the repetition transmission in the portion of the plurality of slots is not performed in the specified number of transmission occasions of the signal, and

the control circuitry determines to continue transmission of the repetition transmission in a case where the repetition transmission is performed in the specified number of transmission occasions of the signal.

3 . The terminal according to claim 1 , wherein:

the determination condition is a condition that uses a time length given by a periodicity of a configured grant transmission,

the terminal is configured to transmit, in the configured grant transmission, a Physical Uplink Shared Channel (PUSCH) with a resource designated in advance, and

the control circuitry determines to terminate transmission of the repetition transmission after the time length.

4 . The terminal according to claim 1 , wherein:

the determination condition is a condition that uses a second time length, which is longer than a first time length given by a periodicity of a configured grant transmission,

the terminal is configured to transmit, in the configured grant transmission, a Physical Uplink Shared Channel (PUSCH) with a resource designated in advance, and

the control circuitry determines to terminate transmission of the repetition transmission after the second time length.

5 . The terminal according to claim 1 , wherein:

the determination condition is a condition that uses a time length given by a periodicity of a configured grant transmission,

the terminal is configured to transmit, in the configured grant transmission, a Physical Uplink Shared Channel (PUSCH) with a resource designated in advance,

the control circuitry determines to continue transmission of the repetition transmission in a case where a sum of (i) a number of times the signal has been transmitted within the time length before the portion of the repetition transmission and (ii) a number of available times for transmission of the signal within the time length after the portion of the repetition transmission, is equal to or greater than the threshold, and

the control circuitry determines to terminate transmission of the repetition transmission in a case where the sum is less than the threshold, or determines the termination of the repetition transmission after the time length.

6 . The terminal according to claim 1 , wherein:

the determination condition is a condition that uses a second time length, which is longer than a first time length given by a periodicity of a configured grant transmission,

the terminal is configured to transmit, in the configured grant transmission, a Physical Uplink Shared Channel (PUSCH) with a resource designated in advance,

the control circuitry determines to continue transmission of the repetition transmission in a case where a sum of (i) a number of times the signal has been transmitted within the second time length before the portion of the plurality of slots and (ii) a number of available times for transmission of the signal within the second time length after the portion of the plurality of slots, is equal to or greater than the threshold, and

7 . The terminal according to claim 1 , wherein:

the determination condition is a condition that uses a specified number of transmission occasions of the signal from a beginning of the repetition transmission and that uses a time length given by a periodicity of a configured grant transmission,

the terminal is configured to transmit, in the configured grant transmission, a Physical Uplink Shared Channel (PUSCH) with a resource designated in advance,

8 . The terminal according to claim 1 , wherein:

the determination condition is a condition that uses a specified number of transmission occasions of the signal from a beginning of the repetition transmission and that uses a second time length, which is longer than a first time length given by a periodicity of a configured grant transmission,

the terminal is configured to transmit, in the configured grant transmission, a Physical Uplink Shared Channel (PUSCH) with a resource designated in advance,

9 . The terminal according to claim 1 , wherein a parameter used for the determination condition is a value that is specified by standards or a value that is indicated from a base station to the terminal.

10 . The terminal according to claim 9 , wherein the parameter is a value that is independent of a number of times of the repetition transmission.

11 . The terminal according to claim 9 , wherein the parameter is a value that is indicated by indication information different from information on the determination condition.

12 . A base station, comprising:

reception circuitry, which, in operation, performs reception of repetition transmission of a signal in a plurality of slots; and

control circuitry, which, in operation,

determines whether or not to perform reception of the repetition transmission in a portion of the plurality of slots;

determines, in response to determining to perform reception of the repetition transmission in the portion of the plurality of slots, to continue reception of the repetition transmission after the portion of the plurality of slots;

determines, in response to determining to not perform reception of the repetition transmission in the portion of the plurality of slots, either (i) to continue reception of the repetition transmission or (ii) to terminate reception of the repetition transmission after the portion of the plurality of slots, by using a determination condition for determining whether to continue reception of the repetition transmission or to terminate reception of the repetition transmission;

continues reception of the repetition transmission in response to determining to continue reception of the repetition transmission; and

terminates reception of the repetition transmission in response to determining to terminate reception of the repetition transmission, wherein

the determination condition is a condition that uses a threshold relating to the repetition transmission of the signal,

the control circuitry determines to continue reception of the repetition transmission in a case where a sum of (i) a number of times the signal has been received before the portion of the plurality of slots and (ii) a number of available times for reception of the signal after the portion of the plurality of slots, is equal to or greater than the threshold, and

the control circuitry determines to terminate reception of the repetition transmission in a case where the sum is less than the threshold.

13 . A communication method, comprising:

performing, by a terminal, repetition transmission of a signal in a plurality of slots;

determining, by the terminal, whether or not to perform the repetition transmission in a portion of the plurality of slots;

determining, by the terminal, in response to determining to perform the repetition transmission in the portion of the plurality of slots, to continue transmission of the repetition transmission after the portion of the plurality of slots;

determining, by the terminal, in response to determining to not perform the repetition transmission in the portion of the plurality of slots, either (i) to continue transmission of the repetition transmission or (ii) terminate transmission of the repetition transmission after the portion of the plurality of slots, by using a determination condition for determining whether to continue the repetition transmission or to terminate the repetition transmission;

continuing, by the terminal, the repetition transmission in response to determining to continue the repetition transmission; and

terminating, by the terminal, the repetition transmission in response to determining to terminate the repetition transmission, wherein

the determination condition is a condition that uses a threshold relating to the repetition transmission of the signal,

continuation of the repetition transmission is determined in a case where a sum of (i) a number of times the signal has been transmitted before the portion of the plurality of slots and (ii) a number of available times for transmission of the signal after the portion of the plurality of slots, is equal to or greater than the threshold, and

termination of the repetition transmission is determined in a case where the sum is less than the threshold.

14 . A communication method, comprising:

performing, by a base station, reception of repetition transmission of a signal in a plurality of slots;

determining, by the base station, whether or not to perform reception of the repetition transmission in a portion of the plurality of slots;

determining, by the base station, in response to determining to perform reception of the repetition transmission in the portion of the plurality of slots, to continue reception of the repetition transmission after the portion of the plurality of slots;

determining, by the base station, in response to determining to not perform reception of the repetition transmission in the portion of the plurality of slots, either (i) to continue reception of the repetition transmission or (ii) to terminate reception of the repetition transmission after the portion of the plurality of slots, by using a determination condition for determining whether to continue reception of the repetition transmission or to terminate reception of the repetition transmission;

continuing, by the base station, reception of the repetition transmission in response to determining to continue reception of the repetition transmission; and

terminating, by the base station, reception of the repetition transmission in response to determining to terminate reception of the repetition transmission, wherein,

the determination condition is a condition that uses a threshold relating to the repetition transmission of the signal,

continuation of reception of the repetition transmission is determined in a case where a sum of (i) a number of times the signal has been received before the portion of the plurality of slots and (ii) a number of available times for reception of the signal after the portion of the plurality of slots, is equal to or greater than the threshold, and

termination of reception of the repetition transmission is determined in a case where the sum is less than the threshold.