# US 11,909,696 B2 · Uplink control information (UCI) transmission for bandwidth part (BWP) switching

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- Number: US 11,909,696 B2
- Document ID: US11909696B2
- Status: Granted
- Kind: B2
- Application number: 17/260,426
- Filed: 2018-07-17
- Published: 2021-08-26
- Granted: 2024-02-20
- Earliest claimed: 2018-07-17
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Kazuki Takeda; Satoshi Nagata; Lihui Wang; Shaozhen Guo; Xiaolin Hou
- Web page: https://patentgrep.com/patent/US11909696B2

## CPC

- H04L 5/14: Two-way operation using the same type of signal, i.e. duplex
- H04L 5/1469: {using time-sharing}
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/0078: {Timing of allocation}
- H04L 5/0092: {Indication of how the channel is divided}
- H04L 5/16: Half-duplex systems; Simplex/duplex switching; Transmission of break signals {non-automatically inverting the direction of transmission}
- 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 72/20: Control channels or signalling for resource management
- 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)

## Abstract

A terminal is disclosed including a transmitter that performs an uplink (UL) transmission; and a receiver that performs a downlink (DL) reception, wherein the transmitter does not perform the UL transmission in a period after a last symbol of the DL reception. In other aspects, a radio communication method, a base station, and a system are also disclosed.

## Claims

### Claim 1

A terminal comprising:
a transmitter that performs uplink (UL) transmission in at least one of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH), and
a receiver that performs downlink (DL) reception in at least one of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH),
wherein the transmitter, when a frequency range is a first frequency range, does not perform the UL transmission until a first period corresponding to the first frequency range has elapsed after a last symbol of the DL reception,
the transmitter, when the frequency range is a second frequency range, does not perform the UL transmission until a second period corresponding to the second frequency range has elapsed after the last symbol of the DL reception,
the first frequency range and the second frequency range are mutually different,
the first period and the second period are mutually different,
the second frequency range is a frequency band higher than 24 GHz, and
the first period and the second period are each defined by a multiplication of parameter NRX-TX and parameter TC, with at least one of the parameter NRX_TX and the parameter TC for the first frequency range being different from the at least one of the parameter NRX-TX and the parameter TC for the second frequency range.

### Claim 2

A radio communication method for a terminal, the method comprising:
performing uplink (UL) transmission in at least one of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH), and
performing downlink (DL) reception in at least one of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH),
wherein, when a frequency range is a first frequency range, the UL transmission is not performed until a first period corresponding to the first frequency range has elapsed after a last symbol of the DL reception,
when the frequency range is a second frequency range, the UL transmission is not performed until a second period corresponding to the second frequency range has elapsed after the last symbol of the DL reception,
the first frequency range and the second frequency range are mutually different,
the first period and the second period are mutually different,
the second frequency range is a frequency band higher than 24 GHz, and
the first period and the second period are each defined by a multiplication of parameter NRX-TX and parameter TC, with at least one of the parameter NRX-TX and the parameter TC for the first frequency range being different from the at least one of the parameter NRX-TX and the parameter TC for the second frequency range.

### Claim 3

A base station that communicates with a terminal, the base station comprising:
a receiver that performs uplink (UL) reception from the terminal in at least one of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH),
a transmitter that performs downlink (DL) transmission to the terminal in at least one of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH), and
a processor that, when a frequency range is a first frequency range, does not assume the UL reception until a first period corresponding to the first frequency range has elapsed after a last symbol of the DL transmission, and when the frequency range is a second frequency range, does not assume the UL reception until a second period corresponding to the second frequency range has elapsed after the last symbol of the DL transmission,
the first frequency range and the second frequency range are mutually different,
the first period and the second period are mutually different,
the second frequency range is a frequency band higher than 24 GHz, and
the first period and the second period are each defined by a multiplication of parameter NRX-TX and parameter TC, with at least one of the parameter NRX-TX and the parameter TC for the first frequency range being different from the at least one of the parameter NRX-TX and the parameter TC for the second frequency range.

### Claim 4

A system comprising a base station and a terminal, wherein:
the base station comprises:
a receiver that performs uplink (UL) reception from the terminal in at least one of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH), and
a transmitter that performs downlink (DL) transmission to the terminal in at least one of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH), and
the terminal comprises:
a transmitter that performs UL transmission in at least one of the PUCCH and the PUSCH, and
a receiver that performs DL reception in at least one of the PDCCH and the PDSCH,
wherein the transmitter of the terminal, when a frequency range is a first frequency range, does not perform the UL transmission until a first period corresponding to the first frequency range has elapsed after a last symbol of the DL reception,
the transmitter of the terminal, when the frequency range is a second frequency range, does not perform the UL transmission until a second period corresponding to the second frequency range has elapsed after the last symbol of the DL reception,
the first frequency range and the second frequency range are mutually different,
the first period and the second period are mutually different,
the second frequency range is a frequency band higher than 24 GHz, and
the first period and the second period are each defined by a multiplication of parameter NRX-TX and parameter TC, with at least one of the parameter NRX-TX and the parameter TC for the first frequency range being different from the at least one of the parameter NRX-TX and the parameter TC for the second frequency range.