IP Library Granted Patent US 11,265,856
Granted Patent B2
US 11,265,856 · App. 16/635,301 · Granted Mar 1, 2022

User terminal and radio communication method

Inventors: Kazuki Takeda (Tokyo, JP); Satoshi Nagata (Tokyo, JP); Lihui Wang (Beijing, CN); Xiaolin Hou (Beijing, CN)
Assignee: NTT DOCOMO, INC.
H04W72/0413H04L5/0053H04W72/042H04W72/12
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Quick Facts
Patent No.
US 11,265,856
App. No.
16/635,301
Granted
Mar 1, 2022
Kind
B2
Abstract

A terminal is disclosed including a processor that determines uplink control channel resource indexes based on configuration of an uplink bandwidth part (UL BWP) and determines a resource for an uplink control channel based on an uplink control channel resource index indicated from Physical Uplink Control Channel (PUCCH) resource indicator field in downlink control information out of the uplink control channel resource indexes; and a transmitter that transmits the uplink control channel on the resource for the uplink control channel on an active UL BWP. In other aspects, a radio communication method for a terminal and a base station are also disclosed.

Claims (22)

1. A terminal comprising:

a processor that:

determines uplink control channel resource indexes based on configuration of an uplink bandwidth part (UL BWP) and

determines a resource for an uplink control channel based on an uplink control channel resource index indicated from Physical Uplink Control Channel (PUCCH) resource indicator field in downlink control information out of the uplink control channel resource indexes; and

a transmitter that transmits the uplink control channel on the resource for the uplink control channel on an active UL BWP, wherein the transmitter is configured not to transmit the uplink control channel, when the resource is not included in the active UL BWP.

2. The terminal according to claim 1 , wherein the processor determines, based on the uplink control channel resource index, that the resource is multiple non-contiguous physical resource blocks.

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

determining uplink control channel resource indexes based on configuration of an uplink bandwidth part (UL BWP);

determining a resource for an uplink control channel based on an uplink control channel resource index indicated from Physical Uplink Control Channel (PUCCH) resource indicator field in downlink control information out of the uplink control channel resource indexes; and

transmitting the uplink control channel on the resource for the uplink control channel on an active UL BWP, and not transmitting the uplink control channel, when the resource is not included in the active UL BWP.

4. A base station comprising:

a transmitter that transmits, to a terminal, configuration of an uplink bandwidth part (UL BWP) used for determining uplink control channel resource indexes and downlink control information including Physical Uplink Control Channel (PUCCH) resource indicator field used for indicating an uplink control channel resource index out of the uplink control channel resource indexes; and

a receiver that receives an uplink control channel on a resource, which is determined based on the uplink control channel resource index by the terminal, for the uplink control channel on an active UL BWP, wherein the receiver is configured not to receive the uplink control channel, when the resource is not included in the active UL BWP.

5. A system comprising:

a terminal that comprises:

a processor that:

determines uplink control channel resource indexes based on configuration of an uplink bandwidth part (UL BWP) and

determines a resource for an uplink control channel based on an uplink control channel resource index indicated from Physical Uplink Control Channel (PUCCH) resource indicator field in downlink control information out of the uplink control channel resource indexes; and

a transmitter of the terminal that transmits the uplink control channel on the resource for the uplink control channel on an active UL BWP, wherein the transmitter of the terminal is configured not to transmit the uplink control channel, when the resource is not included in the active UL BWP; and

a base station that comprises:

a transmitter of the base station that transmits, to the terminal, the configuration of the UL BWP and the downlink control information; and

a receiver that receives the uplink control channel on the resource on the active UL BWP, wherein the receiver is configured not to receive the uplink control channel, when the resource is not included in the active UL BWP.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 5, 2020
From: TAKEDA, KAZUKI; NAGATA, SATOSHI; WANG, LIHUI; HOU, XIAOLIN
To: NTT DOCOMO, INC.
Reel/Frame 051805/0318 →
Continuity (1)
Related Publication 20200374866A1 · Nov 26, 2020