IP Library › Granted Patent US 12696244
Granted Patent B2
US 12696244 · App. 18/275,552 · Granted Jul 28, 2026

Terminal, radio communication method, and base station

Inventors: Yuki Matsumura (Tokyo, JP); Satoshi Nagata (Tokyo, JP); Weiqi Sun (Beijing, CN); Jing Wang (Beijing, CN); Lan Chen (Beijing, CN)
Assignee: NTT DOCOMO, INC.
H04W72/04H04L5/0044H04L5/0053H04W72/12H04W72/1268H04W72/21
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12696244
App. No.
18/275,552
Granted
Jul 28, 2026
Kind
B2
Abstract

A terminal according to one aspect of the present disclosure includes a control section that determines a sounding reference signal resource indicator (SRI) applied to a first uplink shared channel (Physical Uplink Shared Channel (PUSCH)) out of a plurality of PUSCHs and that determines an order of SRIs applied to respective PUSCHs, and a transmitting section that transmits the plurality of PUSCHs. According to one aspect of the present disclosure, it is possible to appropriately control PUSCH repetition transmission even when multiple TRPs are applied.

Claims (20)

1 . A terminal comprising:

a receiver that receives downlink control information (DCI) including a field that indicates to transmit which one of a first repetition of a physical uplink shared channel (PUSCH) to which a single sounding reference signal (SRS) resource indicator (SRI) field of the DCI is applied and a second repetition of a PUSCH to which multiple SRI fields of the DCI are applied, the field being different from both the single SRI field of the DCI and the multiple SRI fields of the DCI; and

a processor that determines, based on the field, to transmit one of the first repetition and the second repetition,

wherein in response to the field, which is different from both the single SRI field of the DCI and the multiple SRI fields of the DCI, indicating the second repetition, the processor determines, based on the field, an SRS resource set and an SRI field that are used in initial transmission of the second repetition.

2 . The terminal according to claim 1 , wherein when the second repetition is indicated by the field, the processor determines that a first transmitted precoding matrix indicator (TPMI) indication field included in the DCI is associated with a first SRI field among the multiple SRI fields and a first SRS resource set, and a second TPMI indication field included in the DCI is associated with a second SRI field among the multiple SRI field and a second SRS resource set.

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

receiving downlink control information (DCI) including a field that indicates to transmit which one of a first repetition of a physical uplink shared channel (PUSCH) to which a single sounding reference signal (SRS) resource indicator (SRI) field of the DCI is applied and a second repetition of a PUSCH to which multiple SRI fields of the DCI are applied, the field being different from both the single SRI field of the DCI and the multiple SRI fields of the DCI;

determining, based on the field, to transmit one of the first repetition and the second repetition; and

in response to the field, which is different from both the single SRI field of the DCI and the multiple SRI fields of the DCI, indicating the second repetition, determining, based on the field, an SRS resource set and an SRI field that are used in initial transmission of the second repetition.

4 . A base station comprising:

a transmitter that transmits downlink control information (DCI) including a field that indicates to transmit which one of a first repetition of a physical uplink shared channel (PUSCH) to which a single sounding reference signal (SRS) resource indicator (SRI) field of the DCI is applied and a second repetition of a PUSCH to which multiple SRI fields of the DCI are applied, the field being different from both the single SRI field of the DCI and the multiple SRI fields of the DCI; and

a processor that indicates, by using the field, to transmit one of the first repetition and the second repetition,

wherein in response to the field, which is different from both the single SRI field of the DCI and the multiple SRI fields of the DCI, indicating the second repetition, the field is used for determination of an SRS resource set and an SRI field that are used in initial transmission of the second repetition.

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

the base station comprises:

a transmitter that transmits downlink control information (DCI) including a field that indicates to transmit which one of a first repetition of a physical uplink shared channel (PUSCH) to which a single sounding reference signal (SRS) resource indicator (SRI) field of the DCI is applied and a second repetition of a PUSCH to which multiple SRI fields of the DCI are applied, the field being different from both the single SRI field of the DCI and the multiple SRI fields of the DCI, and

the terminal comprises:

a receiver that receives the DCI; and

a processor that determines, based on the field, to transmit which one of the first repetition and the second repetition,

wherein in response to the field, which is different from both the single SRI field of the DCI and the multiple SRI fields of the DCI, indicating the second repetition, the processor determines, based on the field, an SRS resource set and an SRI field that are used in initial transmission of the second repetition.