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US 11,696,271 B2Granted
Method and apparatus for transmitting and receiving radio signals in a wireless communication system
AssigneeLG Electronics Inc.
InventorsSuckchel Yang, Seonwook Kim, Jaehyung Kim
Life of this patent
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Abstract
The present invention relates to a wireless communication system, and more particularly, to a method of transmitting and receiving a radio signal and an apparatus therefor. The method comprises the steps of receiving data in a time unit #n of a first frequency band and transmitting A/N in a time unit #m+k of a second frequency band in response to the data. In this case, the first frequency band and the second frequency band have different subcarrier spacing and a time unit #m of the second frequency band indicates the last time unit among a plurality of time units of the second frequency band corresponding to the time unit #n of the first frequency band.
Claims20
A method of performing communication by a user equipment (UE) in a wireless communication system, the method comprising:
- receiving, based on physical downlink control channels (PDCCH)-monitoring, each downlink control information (DCI) configured with a counter-downlink assignment index (C-DAI) for downlink (DL) scheduling;
- performing, in at least one serving cell, a reception of each DL signal based on the reception of each DCI;
- and
- transmitting an Acknowledgement/Negative acknowledgement (A/N) codebook including A/N information for the reception of each DL signal,
- wherein a value of the C-DAI denotes an accumulated number that is counted based on a plurality of indexes including a serving cell index for the reception of each DL signal, and
- wherein, for a case where (i) a first DL signal reception and a second DL signal reception are scheduled in a same serving cell, and (ii) first DCI for scheduling the first DL signal reception and second DCI for scheduling the second DL signal reception are monitored in a same time unit in the PDCCH-monitoring:
- the first DCI for scheduling the first DL signal reception is configured with an earlier order of C-DAI value than the second DCI for scheduling the second DL signal reception, based on that the first DL signal reception starts earlier than the second DL signal reception.
4 more elements
A method of performing communication by a base station (BS) in a wireless communication system, the method comprising:
- transmitting, to a user equipment (UE) through one or more physical downlink control channels (PDCCHs), each downlink control information (DCI) configured with a counter-downlink assignment index (C-DAI) for downlink (DL) scheduling;
- performing, in at least one serving cell, a transmission of each DL signal as scheduled based on the transmission of each DCI;
- and
- receiving, from the UE, an Acknowledgement/Negative acknowledgement (A/N) codebook including A/N information for the transmission of each DL signal,
- wherein a value of the C-DAI denotes an accumulated number that is counted based on a plurality of indexes including a serving cell index for the transmission of each DL signal, and
- wherein, for a case where (i) a first DL signal transmission and a second DL signal transmission are scheduled in a same serving cell, and (ii) first DCI for scheduling the first DL signal transmission and second DCI for scheduling the second DL signal transmission are transmitted in a same time unit for PDCCH-monitoring at the UE:
- the first DCI for scheduling the first DL signal transmission is configured with an earlier order of C-DAI value than the second DCI for scheduling the second DL signal transmission, based on that the first DL signal transmission starts earlier than the second DL signal transmission.
4 more elements
A device for wireless communication, the device comprising:
- a memory configured to store instructions;
- and
- a processor configured to perform operations by executing the instructions, the operations comprising:
- receiving, based on physical downlink control channels (PDCCH)-monitoring, each downlink control information (DCI) configured with a counter-downlink assignment index (C-DAI) for downlink (DL) scheduling;
- performing, in at least one serving cell, a reception of each DL signal based on the reception of each DCI;
- and
- transmitting an Acknowledgement/Negative acknowledgement (A/N) codebook including A/N information for the reception of each DL signal,
- wherein a value of the C-DAI denotes an accumulated number that is counted based on a plurality of indexes including a serving cell index for the reception of each DL signal, and
- wherein, for a case where (i) a first DL signal reception and a second DL signal reception are scheduled in a same serving cell, and (ii) first DCI for scheduling the first DL signal reception and second DCI for scheduling the second DL signal reception are monitored in a same time unit in the PDCCH-monitoring:
- the first DCI for scheduling the first DL signal reception is configured with an earlier order of C-DAI value than the second DCI for scheduling the second DL signal reception, based on that the first DL signal reception starts earlier than the second DL signal reception.
7 more elements
A base station (B S) for wireless communication, the B S comprising:
- a transceiver;
- and
- a processor configured to control the transceiver to:
- transmit, to a user equipment (UE) through one or more physical downlink control channels (PDCCHs), each downlink control information (DCI) configured with a counter-downlink assignment index (C-DAI) for downlink (DL) scheduling;
- perform, in at least one serving cell, a transmission of each DL signal as scheduled based on the transmission of each DCI;
- and
- receive, from the UE, an Acknowledgement/Negative acknowledgement (A/N) codebook including A/N information for the transmission of each DL signal,
- wherein a value of the C-DAI denotes an accumulated number that is counted based on a plurality of indexes including a serving cell index for the transmission of each DL signal, and
- wherein, for a case where (i) a first DL signal transmission and a second DL signal transmission are scheduled in a same serving cell, and (ii) first DCI for scheduling the first DL signal transmission and second DCI for scheduling the second DL signal transmission are transmitted in a same time unit for PDCCH-monitoring at the UE:
- the first DCI for scheduling the first DL signal transmission is configured with an earlier order of C-DAI value than the second DCI for scheduling the second DL signal transmission, based on that the first DL signal transmission starts earlier than the second DL signal transmission.
7 more elements
Dependencies are inferred from the claim text.