# US 11,309,989 B2 · Terminal apparatus and method

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- Number: US 11,309,989 B2
- Document ID: US11309989B2
- Status: Granted
- Kind: B2
- Application number: 16/629,594
- Filed: 2018-08-09
- Published: 2021-11-11
- Granted: 2022-04-19
- Earliest claimed: 2017-08-09
- Assignees: Sharp Kabushiki Kaisha; FG Innovation Company Limited
- Applicants: Sharp Kabushiki Kaisha; FG Innovation Company Limited
- Inventors: Wataru Ouchi; Shoichi Suzuki; Tomoki Yoshimura; Liqing Liu; Taewoo Lee; Daiichiro Nakashima
- Web page: https://patentgrep.com/patent/US11309989B2

## CPC

- H04L 1/0038: {Blind format detection (for detection of modulation format H04L27/0012)}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04J 1/00: Frequency-division multiplex systems (H04J14/00 takes precedence)
- H04L 27/26: Systems using multi-frequency codes (H04L27/32 takes precedence)
- H04W 8/24: Transfer of terminal data
- H04W 24/08: Testing, {supervising or monitoring} using real traffic
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A terminal apparatus includes a transmitter configured to transmit capability information of the terminal apparatus, and a receiver configured to perform blind detection of a PDCCH from a search space in a control resource set, wherein in a case that a capability of blind detection is supported, the blind detection detecting the PDCCH from search spaces in control resource sets the number of which is greater than a prescribed number in a prescribed duration, the transmitter transmits, as the capability information of the terminal apparatus, at least two of pieces of information including (a) a maximum number of blind detections that can be performed in the prescribed duration, (b) a maximum number of blind detections in a unit time, (c) a maximum number of blind detections based on configuration for the control resource set, and (d) a maximum number of the control resource sets for which blind detections can be simultaneously performed.

## Claims

### Claim 1

A terminal apparatus comprising:
a transmitter configured to transmit capability information of the terminal apparatus; and
a receiver configured to monitor a number of PDCCH candidates in at least one search space of at least one control resource set in a prescribed duration, wherein:
the capability information includes a maximum number of blind detections in the prescribed duration and a maximum number of Orthogonal Frequency Division Multiplex (OFDM) symbols for a time resource configurable for the at least one control resource set in the prescribed duration,
the number of PDCCH candidates does not exceed the maximum number of blind detections in the prescribed duration, and
the prescribed duration is a length of a mini-slot.

### Claim 2

A method comprising the steps of:
transmitting capability information of a terminal apparatus; and
monitoring a number of PDCCH candidates in at least one search space of at least one control resource set in a prescribed duration, wherein:
the capability information includes a maximum number of blind detections in the prescribed duration and a maximum number of Orthogonal Frequency Division Multiplex (OFDM) symbols for a time resource configurable for the at least one control resource set in the prescribed duration,
the number of PDCCH candidates does not exceed the maximum number of blind detections in the prescribed duration, and
the prescribed duration is a length of a mini-slot.