# US 11,310,778 B2 · User terminal and radio communication method

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- Number: US 11,310,778 B2
- Document ID: US11310778B2
- Status: Granted
- Kind: B2
- Application number: 16/609,431
- Filed: 2017-05-02
- Published: 2020-06-18
- Granted: 2022-04-19
- Earliest claimed: 2017-05-02
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Kazuki Takeda; Satoshi Nagata; Lihui Wang; Xiaolin Hou
- Web page: https://patentgrep.com/patent/US11310778B2

## CPC

- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04L 5/0042: {Intra-user or intra-terminal allocation}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04W 72/04: Wireless resource allocation
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- H04L 5/0057: {Physical resource allocation for CQI}
- H04L 5/0062: {Avoidance of ingress interference, e.g. ham radio channels}
- H04L 5/0076: {Allocation utility-based}
- H04L 5/0078: {Timing of allocation}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

The present invention is designed so that UCI can be transmitted properly even when a PUSCH of a long TTI and an sPUSCH of a short TTI collide with each other in a same carrier. According to the present invention, a user terminal has a transmission section that transmits UCI, and a control section that controls re-direction of at least part of the UCI, when a PUSCH of a long TTI carrying the UCI, and an sPUSCH of a short TTI, collide with each other in a same carrier.

## Claims

### Claim 1

A terminal comprising:
a transmitter configured to transmit a first physical uplink shared channel (PUSCH) using a first period and a second PUSCH using a second period that is shorter than the first period; and
a processor configured to, when the first PUSCH and the second PUSCH overlap in time, control a dropping of at least a part of the first PUSCH, based on a timing of the overlapping,
wherein the processor is configured to control to drop the part of the first PUSCH that is subjected to transmission after a certain timing, the certain timing being before start of the timing of the overlapping.

### Claim 2

A radio communication method for a terminal comprising:
transmitting a first physical uplink shared channel (PUSCH) using a first period and a second PUSCH using a second period that is shorter than the first period; and
when the first PUSCH and the second PUSCH overlap in time, controlling a dropping of at least a part of the first PUSCH, based on a timing of the overlapping,
wherein the terminal performs a control to drop the part of the first PUSCH that is subjected to transmission after a certain timing, the certain timing being before start of the timing of the overlapping.

### Claim 3

A system comprising a terminal and a base station, wherein the terminal comprises:
a transmitter configured to transmit a first physical uplink shared channel (PUSCH) using a first period and a second PUSCH using a second period that is shorter than the first period; and
a processor configured to, when the first PUSCH and the second PUSCH overlap in time, control a dropping of at least a part of the first PUSCH, based on a timing of the overlapping,
wherein the processor is configured to control to drop the part of the first PUSCH that is subjected to transmission after a certain timing, the certain timing being before start of the timing of the overlapping, and
the base station comprises a receiver configured to receive the first PUSCH and the second PUSCH.