IP Library Granted Patent US 11,844,095
Granted Patent B2
US 11,844,095 · App. 18/107,456 · Granted Dec 12, 2023

Method and device for transmitting or receiving HARQ-ARK information in wireless communication system

Inventors: Youngdae Lee (Seoul, KR); Suckchel Yang (Seoul, KR); Seonwook Kim (Seoul, KR)
Assignee: LG ELECTRONICS INC.
H04W72/30H04L1/1812H04L5/0055H04W72/20
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Quick Facts
Patent No.
US 11,844,095
App. No.
18/107,456
Granted
Dec 12, 2023
Kind
B2
Abstract

Disclosed are a method and a device for transmitting or receiving HARQ-ACK information in a wireless communication system. A method for transmitting HARQ-ACK information according to an embodiment of the present disclosure may comprise the steps of: receiving, from a base station, first physical uplink control channel (PUCCH) configuration information related to an ACK/negative ACK (NACK)-based HARQ-ACK report for a multi-cast physical downlink shared channel (PDSCH) or second PUCCH configuration information related to an NACK-only-based HARQ-ACK report for the multi-cast PDSCH for each one or more uplink bandwidth parts (BWPs) configured for a terminal; receiving, from the base station, downlink control information (DCI) for scheduling of a first multi-cast PDSCH; receiving the first multi-cast PDSCH from the base station on the basis of the DCI; and transmitting, to the base station, first HARQ-ACK information for the first multi-cast PDSCH on a first PUCCH.

Claims (40)

1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

receiving, from a base station, first physical uplink control channel (PUCCH) configuration information related to acknowledgement/negative ACK (ACK/NACK) based hybrid automatic repeat and request-ACK (HARQ-ACK) reporting for a multicast physical downlink shared channel (PDSCH) or second PUCCH configuration information related to NACK-only based HARQ-ACK reporting for a multicast PDSCH;

receiving, from the base station, downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled by a group-radio network temporary identifier (G-RNTI) or a group-configured scheduling-radio network temporary identifier (G-CS-RNTI) for scheduling a first multicast PDSCH;

receiving, from the base station, the first multicast PDSCH based on the DCI; and

transmitting, to the base station, first HARQ-ACK information for the first multicast PDSCH on a first PUCCH,

wherein an ACK/NACK based HARQ-ACK reporting mode or a NACK-only based HARQ-ACK reporting mode is configured for the G-RNTI or the G-CS-RNTI,

wherein the first PUCCH is transmitted according to one of the first PUCCH configuration information and the second PUCCH configuration information, for the G-RNTI or the G-CS-RNTI that the UE provides the HARQ-ACK information according to a configured reporting mode among the ACK/NACK based HARQ-ACK reporting mode and the NACK-only based HARQ-ACK reporting mode, and

wherein a time interval between reception of the first multicast PDSCH and transmission of the first HARQ-ACK information is determined based on the one of the first PUCCH configuration information and the second PUCCH configuration information.

2. The method of claim 1 , wherein based on the NACK-only based HARQ-ACK reporting mode, the first HARQ-ACK information including only an ACK is not transmitted on the first PUCCH.

3. The method of claim 1 , wherein a resource of the first PUCCH is determined by a PUCCH resource indicator (PRI) of the DCI among PUCCH resources configured by the second PUCCH configuration information.

4. The method of claim 1 , wherein based on the first HARQ-ACK information for the first multicast PDSCH and second HARQ-ACK information for a second multicast PDSCH being transmitted in the same slot, the first HARQ-ACK information and the second HARQ-ACK information are transmitted on the first PUCCH.

5. The method of claim 4 , wherein even though the second PUCCH configuration information is configured for transmission of the first PUCCH, the first HARQACK information and the second HARQ-ACK information are transmitted according to an ACK/NACK based HARQ-ACK reporting mode.

6. The method of claim 1 , wherein based on the first HARQ-ACK information for the first multicast PDSCH and second HARQ-ACK information for a second multicast PDSCH being transmitted in the same slot, the first HARQ-ACK information is transmitted on the first PUCCH and the second HARQ-ACK information is transmitted on a second PUCCH in the same slot.

7. The method of claim 1 , further comprising:

receiving, for a unicast PDSCH, only a PUCCH configuration related to ACK/NACK based HARQ-ACK reporting without a PUCCH configuration related to NACK-only based HARQ-ACK reporting.

8. The method of claim 7 , wherein based on the first HARQ-ACK information for the first multicast PDSCH and third HARQ-ACK information for the unicast PDSCH in the same slot, the first HARQ-ACK information and the third HARQ-ACK information are bundled and transmitted on the first PUCCH.

9. The method of claim 7 , wherein based on the first HARQ-ACK information for the first multicast PDSCH and the third HARQ-ACK information for the unicast PDSCH in the same slot, the first HARQ-ACK information is transmitted on the first PUCCH, and the third HARQ-ACK information is transmitted on a third PUCCH in the same slot.

10. The method of claim 1 , wherein a resource of the first PUCCH is configured in a common frequency resource (CFR) in an uplink BWP based on the second PUCCH configuration information.

11. A user equipment (UE) operating in a wireless communication system, the UE comprising:

at least one transceiver for transmitting and receiving a wireless signal; and

at least one processor for controlling the at least one transceiver,

wherein the at least one processor configured to:

receive, from a base station, first physical uplink control channel (PUCCH) configuration information related to acknowledgement/negative ACK (ACK/NACK) based hybrid automatic repeat and request-ACK (HARQ-ACK) reporting for a multicast physical downlink shared channel (PDSCH) or second PUCCH configuration information related to NACK-only based HARQ-ACK reporting for a multicast PDSCH;

receive, from the base station, downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled by a group-radio network temporary identifier (G-RNTI) or a group-configured scheduling-radio network temporary identifier (G-CS-RNTI) for scheduling a first multicast PDSCH;

receive, from the base station, the first multicast PDSCH based on the DCI; and

transmit, to the base station, first HARQ-ACK information for the first multicast PDSCH on a first PUCCH,

wherein an ACK/NACK based HARQ-ACK reporting mode or a NACK-only based HARQ-ACK reporting mode is configured for the G-RNTI or the G-CS-RNTI,

wherein the first PUCCH is transmitted according to one of the first PUCCH configuration information and the second PUCCH configuration information, for the G-RNTI or the G-CS-RNTI that the UE provides the HARQ-ACK information according to a configured reporting mode among the ACK/NACK based HARQ-ACK reporting mode and the NACK-only based HARQ-ACK reporting mode, and

wherein a time interval between reception of the first multicast PDSCH and transmission of the first HARQ-ACK information is determined based on the one of the first PUCCH configuration information and the second PUCCH configuration information.

12. A base station operating in a wireless communication system, the base station comprising:

at least one transceiver for transmitting and receiving a wireless signal; and

at least one processor for controlling the at least one transceiver,

wherein the at least one processor configured to:

transmit, to a user equipment (UE), first physical uplink control channel (PUCCH) configuration information related to acknowledgement/negative ACK (ACK/NACK) based hybrid automatic repeat and request-ACK (HARQ-ACK) reporting for a multicast physical downlink shared channel (PDSCH) or second PUCCH configuration information related to NACK-only based HARQ-ACK reporting for a multicast PDSCH;

transmit, to the UE, downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled by a group-radio network temporary identifier (G-RNTI) or a group configured scheduling-radio network temporary identifier (G-CS-RNTI) for scheduling a first multicast PDSCH;

transmit, to the UE, the first multicast PDSCH based on the DCI; and

receive, from the UE, first HARQ-ACK information for the first multicast PDSCH on a first PUCCH,

wherein an ACK/NACK based HARQ-ACK reporting mode or a NACK-only based HARQ-ACK reporting mode is configured for the G-RNTI or the G-CS-RNTI,

wherein the first PUCCH is transmitted according to one of the first PUCCH configuration information and the second PUCCH configuration information for the G-RNTI or the G-CS-RNTI that the UE provides the HARQ-ACK information according to a configured reporting mode among the ACK/NACK based HARQ-ACK reporting mode and the NACK-only based HARQ-ACK reporting mode, and

wherein a time interval between reception of the first multicast PDSCH and transmission of the first HARQ-ACK information is determined based on the one of the first PUCCH configuration information and the second PUCCH configuration information.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 8, 2023
From: LEE, YOUNGDAE; YANG, SUCKCHEL; KIM, SEONWOOK
To: LG ELECTRONICS INC.
Reel/Frame 062633/0495 →
Priority Claims (1)
KR 10-2021-0060596 · May 11, 2021 · national
Continuity (2)
Continuation PCTKR2022006771 · May 11, 2022
Related Publication 20230189298A1 · Jun 15, 2023