Patent ID: 11923985
Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for performing hybrid automatic repeat request feedback, comprising:
determining, by a terminal, a hybrid automatic repeat request acknowledge (HARQ-ACK) codebook transmitted on a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH);
adding, by a terminal, HARQ-ACK of a semi-persistent scheduling physical downlink shared channel (SPS PDSCH) in the HARQ-ACK codebook; and
transmitting, by the terminal, a processed HARQ-ACK codebook;
wherein the adding, by the terminal, the HARQ-ACK of the SPS PDSCH in the HARQ-ACK codebook comprises a scheme 1 or 2:
the scheme 1: adding, by the terminal, the HARQ-ACK of the SPS PDSCH in the HARQ-ACK codebook according to HARQ-ACK timing of the SPS PDSCH;
wherein the adding, by the terminal, the HARQ-ACK of the SPS PDSCH in the HARQ-ACK codebook according to the HARQ-ACK timing of the SPS PDSCH comprises: adding, by the terminal, the HARQ-ACK of the SPS PDSCH in the HARQ-ACK codebook, in the condition that the terminal determines, according to the HARQ-ACK timing of the SPS PDSCH, that the HARQ-ACK of the SPS PDSCH and the HARQ-ACK codebook are transmitted at the same time;
the adding, by the terminal, the HARQ-ACK of the SPS PDSCH in the HARQ-ACK codebook, in the condition that the terminal determines, according to the HARQ-ACK timing of the SPS PDSCH, that the HARQ-ACK of the SPS PDSCH and the HARQ-ACK codebook are transmitted at the same time comprises:
adding, by the terminal, the HARQ-ACK of the SPS PDSCH in the HARQ-ACK codebook, in the condition that the HARQ-ACK codebook is transmitted at time n and time n-k is time at which the terminal receives the SPS PDSCH; wherein k is the HARQ-ACK timing of the SPS PDSCH; or
adding, by the terminal, the HARQ-ACK of the SPS PDSCH in the HARQ-ACK codebook transmitted at transmission time n+k, in the condition that transmission time of the SPS PDSCH is n; wherein k is the HARQ-ACK timing of the SPS PDSCH;
the scheme 2: determining, by the terminal, according to whether a set of downlink transmission corresponding to time at which the HARQ-ACK codebook is transmitted comprises a transmission occasion of the SPS PDSCH, whether the HARQ-ACK of the SPS PDSCH is added by the terminal in the HARQ-ACK codebook, wherein the downlink transmission is the PDSCH or the PDCCH indicating downlink SPS release;
the determining, by the terminal, according to whether the set of downlink transmission corresponding to the time at which the HARQ-ACK codebook is transmitted comprises the transmission occasion of the SPS PDSCH, whether to add the HARQ-ACK of the SPS PDSCH in the HARQ-ACK codebook comprises:
adding, by the terminal, in the condition that the set of downlink transmission corresponding to the time at which the HARQ-ACK codebook is transmitted comprises the transmission occasion of the SPS PDSCH, the HARQ-ACK of the SPS PDSCH in the HARQ-ACK codebook.