User terminal and radio communication method

Patent metadata

Field	Value
Publication number	US-11716730-B2
Application number	US-201816767668-A
Country	US
Kind code	B2
Filing date	Nov 30, 2018
Priority date	Dec 1, 2017
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

A user terminal according to one aspect of the present disclosure includes a transmitting section that transmits data and uplink control information using an uplink shared channel, and a control section that controls a mapping pattern of the uplink control information, based on whether or not a frequency resource to which the uplink shared channel is allocated is hopped in a slot.

First claim

What is claimed is:

1. A terminal comprising:
a processor that, when transmitting uplink control information, UL data and demodulation reference signal by using an uplink shared channel to which frequency hopping using a plurality of resource regions comprising a first resource region and a second resource region in a single slot is applied, determines a position to multiplex the uplink control information per resource region, wherein each of the first resource region and the second resource region in the single slot supports a mapping of two or more symbols of the demodulation reference signal; and
a transmitter that transmits the uplink control information by distributing and mapping, based on the position, the uplink control information to the plurality of resource regions at a substantially equal ratio.

2. The terminal according to claim 1 , when the uplink control information includes HARQ-ACK, channel state information part 1 and channel state information part 2 , the processor maps each of the HARQ-ACK, the channel state information part 1 and the channel state information part 2 to the first resource region and the second resource region at the substantially equal ratio.

3. A radio communication method for a terminal, comprising:
when transmitting uplink control information, UL data and demodulation reference signal by using an uplink shared channel to which frequency hopping using a plurality of resource regions comprising a first resource region and a second resource region in a single slot is applied, determining a position to multiplex the uplink control information per resource region, wherein each of the first resource region and the second resource region in the single slot supports a mapping of two or more symbols of the demodulation reference signal; and
transmitting the uplink control information by distributing and mapping, based on the position, the uplink control information to the plurality of resource regions at a substantially equal ratio.

4. A base station comprising:
a processor that, when uplink control information, UL data and demodulation reference signal are transmitted by using an uplink shared channel to which frequency hopping using a plurality of resource regions comprising a first resource region and a second resource region in a single slot is applied, determines a position to multiplex the uplink control information per resource region, wherein each of the first resource region and the second resource region in the single slot supports a mapping of two or more symbols of the demodulation reference signal; and
a receiver that receives the uplink control information that is transmitted by being distributed and mapped, based on the position, to the plurality of resource regions at a substantially equal ratio.

5. A system comprising a terminal and a base station,
the terminal comprises:
a processor that, when transmitting uplink control information, UL data and demodulation reference signal by using an uplink shared channel to which frequency hopping using a plurality of resource regions comprising a first resource region and a second resource region in a single slot is applied, determines, a position to multiplex the uplink control information per resource region, wherein each of the first resource region and the second resource region in the single slot supports a mapping of two or more symbols of the demodulation reference signal; and
a transmitter that transmits the uplink control information by distributing and mapping based on the position, the uplink control information to the plurality of resource regions at a substantially equal ratio; and

the base station comprises:
a processor that determines the position; and
a receiver that receives the uplink control information.

Assignees

• Ntt Docomo Inc

Inventors

• Takeda Kazuki
• Nagata Satoshi
• Wang Lihui
• Hou Xiaolin

Classifications

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04B1/713

  using frequency hopping · CPC title

• H04L1/1812

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title

• H04L5/0055 Primary

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L5/0057

  Physical resource allocation for CQI · CPC title