# US 11,310,771 B2 · User terminal and radio communication method

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- Number: US 11,310,771 B2
- Document ID: US11310771B2
- Status: Granted
- Kind: B2
- Application number: 16/968,921
- Filed: 2018-02-15
- Published: 2020-11-26
- Granted: 2022-04-19
- Earliest claimed: 2018-02-15
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Hiroki Harada; Tomoya Ohara
- Web page: https://patentgrep.com/patent/US11310771B2

## CPC

- H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals}
- H04W 72/30: Resource management for broadcast services
- H04B 7/06952: {Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04L 27/261: {Details of reference signals}
- H04W 56/001: {Synchronization between nodes}
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- 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)
- H04B: TRANSMISSION

## Abstract

In order to properly notify of resources in which a synchronization signal block is transmitted in the future radio communication system, a user terminal has a receiving section that receives pattern information indicating whether or not a synchronization signal block is transmitted in each of a plurality of transmission candidate positions within a group of transmission candidate positions of the synchronization signal block, and group information indicating a method of applying the pattern information to each of a plurality of groups, and a control section that controls, based on the group information, one of assuming that the synchronization signal block is transmitted in all transmission candidate positions within a particular group, and of determining the plurality of transmission candidate positions within the particular group according to the pattern information.

## Claims

### Claim 1

A terminal comprising:
a receiving section that receives pattern information indicating whether or not a synchronization signal block is transmitted in each of a plurality of transmission candidate positions within a group of transmission candidate positions of the synchronization signal block, and group information indicating a method of applying the pattern information to each of a plurality of groups; and
a control section that controls, based on the group information, one of assuming that the synchronization signal block is transmitted in all transmission candidate positions within a particular group, and of determining the plurality of transmission candidate positions within the particular group according to the pattern information.

### Claim 2 (depends on 1)

The terminal according to claim 1, wherein when an element that corresponds to the particular group in the group information is a particular value, the control section assumes that the synchronization signal block is transmitted in all transmission candidate positions within the particular group.

### Claim 3 (depends on 1)

The terminal according to claim 1, wherein the receiving section receives instruction information on an interpretation of the group information, and when an element that corresponds to the particular group in the group information is a particular value, based on the instruction information, the control section judges assuming that the synchronization signal block is transmitted in all transmission candidate positions within the particular group or assuming that the synchronization signal block is not transmitted in all transmission candidate positions within the particular group.

### Claim 4 (depends on 1)

The terminal according to claim 1, wherein the receiving section further receives additional pattern information indicating whether or not the synchronization signal block is transmitted in each of the plurality of transmission candidate positions, and the control section determines the plurality of transmission candidate positions within the particular group, according to one of an element that corresponds to the particular group in the group information, the pattern information and the additional pattern information.

### Claim 5 (depends on 1)

The terminal according to claim 1, wherein the receiving section receives configuration information for configuring one of downlink, uplink and flexible for a particular period, and when the configuration information indicates uplink, irrespective of the group information and the pattern information, the control section assumes that the synchronization signal block is not transmitted in the particular period.

### Claim 6

A radio communication method of a terminal, including:
receiving pattern information indicating whether or not a synchronization signal block is transmitted in each of a plurality of transmission candidate positions within a group of transmission candidate positions of the synchronization signal block, and group information indicating a method of applying the pattern information to each of a plurality of groups; and
controlling, based on the group information, one of assuming that the synchronization signal block is transmitted in all transmission candidate positions within a particular group, and of determining the plurality of transmission candidate positions within the particular group according to the pattern information.