# US 2020/0404652 A1 · User terminal, radio base station and radio communication method

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- Number: US 2020/0404652 A1
- Document ID: US20200404652A1
- Status: Published application
- Kind: A1
- Application number: 16/971,364
- Filed: 2018-02-23
- Published: 2020-12-24
- Earliest claimed: 2018-02-23
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Yuki Matsumura; Kazuki Takeda; Satoshi Nagata
- Web page: https://patentgrep.com/patent/US20200404652A1

## CPC

- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04L 27/2678: {using cyclostationarities, e.g. cyclic prefix or postfix}
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/0012: {Hopping in multicarrier systems}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A terminal is disclosed including a receiver that receives a system information block before establishing a radio resource control connection; and a processor that determines one physical uplink control channel (PUCCH) resource set from a plurality of PUCCH resource sets based on an index within the system information block, and determines one PUCCH resource from a plurality of PUCCH resources within the PUCCH resource set based on a control channel element (CCE) index and a PUCCH resource indicator field within a downlink control information (DCI), wherein all of the plurality of PUCCH resources includes a same number of symbols and a same start symbol index, and at least two PUCCH resources out of the plurality of PUCCH resources include different initial cyclic shift indexes. In other aspects, a radio communication method and a base station are also disclosed.

## Claims

### Claim at position 1

-6. (canceled)

### Claim 7

A terminal comprising:
a receiver that receives a system information block before establishing a radio resource control connection; and
a processor that determines one physical uplink control channel (PUCCH) resource set from a plurality of PUCCH resource sets based on an index within the system information block, and determines one PUCCH resource from a plurality of PUCCH resources within the PUCCH resource set based on a control channel element (CCE) index and a PUCCH resource indicator field within a downlink control information (DCI),
wherein all of the plurality of PUCCH resources includes a same number of symbols and a same start symbol index, and at least two PUCCH resources out of the plurality of PUCCH resources include different initial cyclic shift indexes.

### Claim 8 (depends on 7)

The terminal according to claim 7, wherein at least two of the plurality of PUCCH resources have different start physical resource block indices.

### Claim 9 (depends on 7)

The terminal according to claim 7, wherein the PUCCH resource set is cell specific.

### Claim 10

A radio communication method for a terminal comprising:
receiving a system information block before a radio resource control connection; and
determining one physical uplink control channel (PUCCH) resource set from a plurality of PUCCH resource sets based on an index within the system information block, and determining one PUCCH resource from a plurality of PUCCH resources within the PUCCH resource set based on a control channel element (CCE) index and a PUCCH resource indicator field within a downlink control information (DCI),
wherein all of the plurality of PUCCH resources includes a same number of symbols and a same start symbol index, and at least two PUCCH resources out of the plurality of PUCCH resources include different initial cyclic shift indexes.

### Claim 11 (depends on 8)

The terminal according to claim 8, wherein the PUCCH resource set is cell specific.

### Claim 12

A base station comprising:
a transmitter that transmits a system information block before a radio resource control connection; and
a processor that controls reception of a physical uplink control channel (PUCCH) in a PUCCH resource,
wherein one PUCCH resource set is determined from a plurality of PUCCH resource sets based on an index within the system information block,
the PUCCH resource is determined from a plurality of PUCCH resources within the PUCCH resource set based on a control channel element (CCE) index and a PUCCH resource indicator field within a downlink control information (DCI),
all of the plurality of PUCCH resources includes a same number of symbols and a same start symbol index, and
at least two PUCCH resources out of the plurality of PUCCH resources include different initial cyclic shift indexes.