# US 2021/0345366 A1 · User equipment and base stations that achieve ultra reliable and low latency communications

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- Number: US 2021/0345366 A1
- Document ID: US20210345366A1
- Status: Published application
- Kind: A1
- Application number: 17/279,586
- Filed: 2019-09-27
- Published: 2021-11-04
- Earliest claimed: 2018-09-27
- Assignees: Sharp Kabushiki Kaisha
- Applicants: Sharp Kabushiki Kaisha
- Inventors: KAI YING; TATSUSHI AIBA; JOHN MICHAEL KOWALSKI
- Web page: https://patentgrep.com/patent/US20210345366A1

## CPC

- H04W 72/1263: Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04L 1/0025: {Transmission of mode-switching indication}
- H04L 1/0061: {Error detection codes}
- H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)}
- H04L 1/1893: {Physical mapping arrangements (physical resource mapping in general H04L5/00)}
- 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 72/0466: {the resource being a scrambling code}
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 1/0003: {by switching between different modulation schemes}
- H04L 1/0016: {involving special memory structures, e.g. look-up tables}
- 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 user equipment, comprising: receiving circuitry configured to receive an RRC message comprising first information used for a PUSCH transmission corresponding to a configured grant, the first information comprising a first parameter(s) and a second parameter(s), the first parameter being for power control, the second parameter(s) being for configuring a type of frequency resource allocation, the receiving circuitry configured to receive an RRC message comprising second information used for a PUSCH transmission scheduled by a PDCCH with CRC scrambled by a C-RNTI, the second information comprising a third parameter(s) for configuring a type of frequency resource allocation, the receiving circuitry configured to monitor a PDCCH with CRC scrambled by a CS-RNTI, the PDCCH being used for scheduling of a PUSCH retransmission corresponding to the configured grant, and transmitting circuitry configured to perform a PUSCH initial transmission corresponding to the configured grant by using the first parameter(s) and the second parameter(s), the transmitting circuitry configured to perform, based on detection of the PDCCH, the PUSCH retransmission corresponding to the configured grant by using the first parameter(s) and the third parameter(s).

## Claims

### Claim 1

A user equipment, comprising:
receiving circuitry configured to receive a radio resource control (RRC) message comprising first information used for a physical uplink shared channel (PUSCH) transmission corresponding to a configured grant, the first information comprising a first parameter(s) and a second parameter(s), the first parameter being for power control, the second parameter(s) being for configuring a type of frequency resource allocation,
the receiving circuitry configured to receive an RRC message comprising second information used for a PUSCH transmission scheduled by a physical downlink control channel (PDCCH) with cyclic redundancy check (CRC) scrambled by a cell-radio network temporary identifier (C-RNTI), the second information comprising a third parameter(s) for configuring a type of frequency resource allocation,
the receiving circuitry configured to monitor a PDCCH with CRC scrambled by a configured scheduling radio network temporary identifier (CS-RNTI), the PDCCH being used for scheduling of a PUSCH retransmission corresponding to the configured grant, and transmitting circuitry configured to perform a PUSCH initial transmission corresponding to the configured grant by using the first parameter(s) and the second parameter(s),
the transmitting circuitry configured to perform, based on detection of the PDCCH, the PUSCH retransmission corresponding to the configured grant by using the first parameter(s) and the third parameter(s).

### Claim 2

A base station, comprising:
transmitting circuitry configured to transmit a radio resource control (RRC) message comprising first information used for a physical uplink shared channel (PUSCH) transmission corresponding to a configured grant, the first information comprising a first parameter(s) and a second parameter(s), the first parameter(s) being for power control, the second parameter(s) being for configuring a type of frequency resource allocation,
the transmitting circuitry configured to transmit an RRC message comprising second information used for a PUSCH transmission scheduled by a physical downlink control channel (PDCCH) with cyclic redundancy check (CRC) scrambled by a cell-radio network temporary identifier (C-RNTI), the second information comprising a third parameter(s) for configuring a type of frequency resource allocation,
the transmitting circuitry configured to transmit a PDCCH with CRC scrambled by a configured scheduling radio network temporary identifier (CS-RNTI), the PDCCH being used for scheduling of a PUSCH retransmission corresponding to the configured grant, and reception circuitry configured to receive a PUSCH initial transmission corresponding to the configured grant by using the first parameter(s) and the second parameter(s),
the reception circuitry configured to receive the PUSCH retransmission which is scheduled by the PDCCH and corresponds to the configured grant by using the first parameter(s) and the third parameter(s).

### Claim 3

A method by a user equipment, comprising:
receiving a radio resource control (RRC) message comprising first information used for a physical uplink shared channel (PUSCH) transmission corresponding to a configured grant, the first information comprising a first parameter(s) and a second parameter(s), the first parameter being for power control, the second parameter(s) being for configuring a type of frequency resource allocation,
receiving an RRC message comprising second information used for a PUSCH transmission scheduled by a physical downlink control channel (PDCCH) with cyclic redundancy check (CRC) scrambled by a cell-radio network temporary identifier (C-RNTI), the second information comprising a third parameter(s) for configuring a type of frequency resource allocation,
monitoring a PDCCH with CRC scrambled by a configured scheduling radio network temporary identifier (CS-RNTI), the PDCCH being used for scheduling of a PUSCH retransmission corresponding to the configured grant,
performing a PUSCH initial transmission corresponding to the configured grant by using the first parameter(s) and the second parameter(s), and
performing, based on detection of the PDCCH, the PUSCH retransmission corresponding to the configured grant by using the first parameter(s) and the third parameter(s).

### Claim 4

A method by a base station, comprising:
transmitting a radio resource control (RRC) message comprising first information used for a physical uplink shared channel (PUSCH) transmission corresponding to a configured grant, the first information comprising a first parameter(s) and a second parameter(s), the first parameter(s) being for power control, the second parameter(s) being for configuring a type of frequency resource allocation,
transmitting an RRC message comprising second information used for a PUSCH transmission scheduled by a physical downlink control channel (PDCCH) with cyclic redundancy check (CRC) scrambled by a cell-radio network temporary identifier (C-RNTI), the second information comprising a third parameter(s) for configuring a type of frequency resource allocation,
transmitting a PDCCH with CRC scrambled by a configured scheduling radio network temporary identifier (CS-RNTI), the PDCCH being used for scheduling of a PUSCH retransmission corresponding to the configured grant,
receiving a PUSCH initial transmission corresponding to the configured grant by using the first parameter(s) and the second parameter(s), and
receiving the PUSCH retransmission which is scheduled by the PDCCH and corresponds to the configured grant by using the first parameter(s) and the third parameter(s).