Communication method and apparatus using multiple panels
A method of a terminal may comprise: receiving, from a base station, DCI including a first field indicating HARQ-ACK retransmission and a second field indicating a priority; identifying first HARQ-ACK information having a priority identical to the priority indicated by the second field; and transmitting, to the base station, a first HARQ-ACK codebook including the first HARQ-ACK information based on the indication of the first field.
1 . A method of a terminal, comprising:
receiving, from a base station, downlink control information (DCI) including a first field indicating hybrid automatic repeat request-acknowledgement (HARQ-ACK) retransmission and a second field indicating a priority;
identifying first HARQ-ACK information having a priority identical to the priority indicated by the second field; and
transmitting, to the base station, a first HARQ-ACK codebook including the first HARQ-ACK information based on the indication of the first field,
wherein, based on a first reference signal (RS) group for a physical uplink control channel (PUCCH) being identical to a second RS group for a physical uplink shared channel (PUSCH), the first HARQ-ACK codebook is transmitted in the PUSCH, or
based on the first RS group for the PUCCH being different from the second RS group for the PUSCH, the first HARQ-ACK codebook is transmitted in the PUCCH, and
wherein the first RS group corresponds to a first beam of the terminal and the second RS group corresponds to a second beam of the terminal.
2 . The method according to claim 1 , further comprising identifying second HARQ-ACK information having a priority identical to the priority indicated by the second field, wherein a second HARQ-ACK codebook including the second HARQ-ACK information is transmitted to the base station together with the first HARQ-ACK codebook.
3 . The method according to claim 2 , wherein the first HARQ-ACK codebook is a retransmission HARQ-ACK codebook, the second HARQ-ACK codebook is an initial transmission codebook, and the second HARQ-ACK codebook is arranged before the first HARQ-ACK codebook within a HARQ-ACK bitstream.
4 . The method according to claim 1 , further comprising:
identifying second HARQ-ACK information having a priority identical to the priority indicated by the second field; and
identifying third HARQ-ACK information having a priority identical to the priority indicated by the second field,
wherein a second HARQ-ACK codebook including the second HARQ-ACK information and a third HARQ-ACK codebook including the third HARQ-ACK information are transmitted to the base station together with the first HARQ-ACK codebook.
5 . The method according to claim 4 , wherein the first HARQ-ACK codebook is a retransmission HARQ-ACK codebook, the second HARQ-ACK codebook is an initial transmission codebook, the third HARQ-ACK codebook is a deferred semi-persistent scheduling (SPS) HARQ-ACK codebook, the second HARQ-ACK codebook is arranged first within a HARQ-ACK bit stream, the third HARQ-ACK codebook is arranged after the second HARQ-ACK codebook within the HARQ-ACK bitstream, and the first HARQ-ACK codebook is arranged after the third HARQ-ACK codebook within the HARQ-ACK bitstream.
6 . The method according to claim 1 , wherein a cell in which the first HARQ-ACK codebook is transmitted is determined based on a format of the DCI.
7 . The method according to claim 1 , wherein when the DCI is fallback DCI, the first HARQ-ACK codebook is transmitted in a PCell.
8 . The method according to claim 1 , further comprising receiving, from the base station, configuration information of a PUCCH serving cell, wherein when the DCI is non-fallback DCI, the first HARQ-ACK codebook is transmitted in the PUCCH serving cell according to the configuration information.
9 . The method according to claim 1 , further comprising receiving, from the base station, configuration information of a PUCCH serving cell, wherein when the DCI is non-fallback DCI and the DCI includes a third field indicating a cell in which PUCCH transmission is performed, the first HARQ-ACK codebook is transmitted in a PCell or the PUCCH serving cell based on a value of the third field.
10 . The method according to claim 1 , wherein the DCI is non-scheduling DCI.
11 . A method of a base station, comprising:
generating downlink control information (DCI) including a first field indicating whether to perform hybrid automatic repeat request-acknowledgement (HARQ-ACK) retransmission and a second field indicating a priority;
transmitting the DCI to a terminal; and
in response to the first field indicating the HARQ-ACK retransmission, receiving, from the terminal, a first HARQ-ACK codebook including first HARQ-ACK information having a priority identical to the priority indicated by the second field,
wherein, based on a first reference signal (RS) group for a physical uplink control channel (PUCCH) being identical to a second RS group for a physical uplink shared channel (PUSCH), the first HARQ-ACK codebook is received in the PUSCH, or
based on the first RS group for the PUCCH being different from the second RS group for the PUSCH, the first HARQ-ACK codebook is received in the PUCCH, and
wherein the first RS group corresponds to a first beam of the terminal and the second RS group corresponds to a second beam of the terminal.
12 . The method according to claim 11 , wherein a second HARQ-ACK codebook including second HARQ-ACK information having a priority identical to the priority indicated by the second field is received from the terminal together with the first HARQ-ACK codebook, the first HARQ-ACK codebook is a retransmission HARQ-ACK codebook, the second HARQ-ACK codebook is an initial transmission codebook, and the second HARQ-ACK codebook is arranged before the first HARQ-ACK codebook within a HARQ-ACK bitstream.
13 . The method according to claim 11 , wherein a second HARQ-ACK codebook including second HARQ-ACK information having a priority identical to the priority indicated by the second field and a third HARQ-ACK codebook including third HARQ-ACK information having a priority identical to the priority indicated by the second field are received from the terminal together with the first HARQ-ACK codebook, the first HARQ-ACK codebook is a retransmission HARQ-ACK codebook, the second HARQ-ACK codebook is an initial transmission codebook, the third HARQ-ACK codebook is a deferred semi-persistent scheduling (SPS) HARQ-ACK codebook, the second HARQ-ACK codebook is arranged first within a HARQ-ACK bit stream, the third HARQ-ACK codebook is arranged after the second HARQ-ACK codebook within the HARQ-ACK bitstream, and the first HARQ-ACK codebook is arranged after the third HARQ-ACK codebook within the HARQ-ACK bitstream.
14 . The method according to claim 11 , wherein a cell in which the first HARQ-ACK codebook is received is determined based on a format of the DCI, the first HARQ-ACK codebook is received in a PCell when the DCI is fallback DCI, or the first HARQ-ACK codebook is received in the PCell or a PUCCH serving cell when the DCI is non-fallback DCI.
15 . The method according to claim 11 , further comprising transmitting configuration information of a PUCCH serving cell to the terminal, wherein the first HARQ-ACK codebook is received in the PUCCH serving cell.
16 . A terminal comprising:
a processor;
a memory electronically communicating with the processor; and
instructions stored in the memory,
wherein when executed by the processor, the instructions cause the terminal to:
receive, from a base station, downlink control information (DCI) including a first field indicating hybrid automatic repeat request-acknowledgement (HARQ-ACK) retransmission and a second field indicating a priority;
identify first HARQ-ACK information having a priority identical to the priority indicated by the second field; and
transmit, to the base station, a first HARQ-ACK codebook including the first HARQ-ACK information based on the indication of the first field,
wherein, based on a first reference signal (RS) group for a physical uplink control channel (PUCCH) being identical to a second RS group for a physical uplink shared channel (PUSCH), the first HARQ-ACK codebook is transmitted in the PUSCH, or
based on the first RS group for the PUCCH being different from the second RS group for the PUSCH, the first HARQ-ACK codebook is transmitted in the PUCCH, and
wherein the first RS group corresponds to a first beam of the terminal and the second RS group corresponds to a second beam of the terminal.
17 . The terminal according to claim 16 , wherein the instructions further cause the terminal to identify second HARQ-ACK information having a priority identical to the priority indicated by the second field, wherein a second HARQ-ACK codebook including the second HARQ-ACK information is transmitted to the base station together with the first HARQ-ACK codebook, the first HARQ-ACK codebook is a retransmission HARQ-ACK codebook, the second HARQ-ACK codebook is an initial transmission codebook, and the second HARQ-ACK codebook is arranged before the first HARQ-ACK codebook within a HARQ-ACK bitstream.
18 . The terminal according to claim 16 , wherein the instructions further cause the terminal to:
identify second HARQ-ACK information having a priority identical to the priority indicated by the second field; and
identify third HARQ-ACK information having a priority identical to the priority indicated by the second field,
wherein a second HARQ-ACK codebook including the second HARQ-ACK information and a third HARQ-ACK codebook including the third HARQ-ACK information are transmitted to the base station together with the first HARQ-ACK codebook, the first HARQ-ACK codebook is a retransmission HARQ-ACK codebook, the second HARQ-ACK codebook is an initial transmission codebook, the third HARQ-ACK codebook is a deferred semi-persistent scheduling (SPS) HARQ-ACK codebook, the second HARQ-ACK codebook is arranged first within a HARQ-ACK bit stream, the third HARQ-ACK codebook is arranged after the second HARQ-ACK codebook within the HARQ-ACK bitstream, and the first HARQ-ACK codebook is arranged after the third HARQ-ACK codebook within the HARQ-ACK bitstream.
19 . The terminal according to claim 16 , wherein a cell in which the first HARQ-ACK codebook is transmitted is determined based on a format of the DCI, the first HARQ-ACK codebook is transmitted in a PCell when the DCI is fallback DCI, or the first HARQ-ACK codebook is transmitted in the PCell or a PUCCH serving cell when the DCI is non-fallback DCI.
20 . The terminal according to claim 16 , wherein the instructions further cause the terminal to receive, from the base station, configuration information of a PUCCH serving cell, wherein the first HARQ-ACK codebook is transmitted in the PUCCH serving cell.