User terminal and radio communication method
A user terminal includes: a control section that determines a set of one or more candidate occasions for reception of a downlink shared channel available in a time unit, based on a Hybrid Automatic Repeat reQuest-ACKnowledge (HARQ-ACK) timing value using a same or different time unit between a plurality of services and a format of the time unit; and a transmitting section that transmits a codebook being determined based on the set of the one or more candidate occasions.
1 . A terminal comprising:
a transmitter that transmits capability information indicating support of granularity of a Hybrid Automatic Repeat reQuest-ACKnowledge (HARQ-ACK) timing value of a sub-slot unit;
a receiver that receives a UE-specific Radio Resource Control (RRC) parameter indicating the granularity; and
a processor that controls, when a number of symbols of a sub-slot indicating the granularity is configured to 2 symbols by the UE-specific RRC parameter, to transmit, in a slot, a plurality of uplink control channels (PUCCHs), each of the PUCCHs being transmitted in a sub-slot with the number of symbols and including a respective HARQ-ACK codebook associated with the granularity, which is configured to 2 symbols, of the HARQ-ACK timing value.
2 . A radio communication method for a terminal, comprising:
transmitting capability information indicating support of granularity of a Hybrid Automatic Repeat reQuest-ACKnowledge (HARQ-ACK) timing value of a sub-slot unit;
receiving a UE-specific Radio Resource Control (RRC) parameter indicating the granularity; and
controlling, when a number of symbols of a sub-slot indicating the granularity is configured to 2 symbols by the UE-specific RRC parameter, to transmit, in a slot, a plurality of uplink control channels (PUCCHs), each of the PUCCHs being transmitted in a sub-slot with the number of symbols and including a respective HARQ-ACK codebook associated with the granularity, which is configured to 2 symbols, of the HARQ-ACK timing value.
3 . A base station comprising:
a receiver that receives capability information indicating support of granularity of a Hybrid Automatic Repeat reQuest-ACKnowledge (HARQ-ACK) timing value of a sub-slot unit;
a transmitter that transmits a UE-specific Radio Resource Control (RRC) parameter indicating the granularity; and
a processor that controls, when a number of symbols of a sub-slot indicating the granularity is configured to 2 symbols by the UE-specific RRC parameter, to receive, in a slot, a plurality of uplink control channels (PUCCHs), each of the PUCCHs being transmitted in a sub-slot with the number of symbols and including a respective HARQ-ACK codebook associated with the granularity, which is configured to 2 symbols, of the HARQ-ACK timing value.
4 . A system comprising a terminal and a base station, wherein
the terminal comprises:
a transmitter that transmits capability information indicating support of granularity of a Hybrid Automatic Repeat reQuest-ACKnowledge (HARQ-ACK) timing value of a sub-slot unit;
a receiver that receives a UE-specific Radio Resource Control (RRC) parameter indicating the granularity; and
a processor that controls, when a number of symbols of a sub-slot indicating the granularity is configured to 2 symbols by the UE-specific RRC parameter, to transmit, in a slot, a plurality of uplink control channels (PUCCHs), each of the PUCCHs being transmitted in a sub-slot with the number of symbols and including a respective HARQ-ACK codebook associated with the granularity, which is configured to 2 symbols, of the HARQ-ACK timing value; and
the base station comprises:
a transmitter that transmits the UE-specific RRC parameter.