Granted Patent B2

US 11,799,612 · App. 18/158,185 · Granted Oct 24, 2023

Inventors: Suckchel Yang (Seoul, KR); Seonwook Kim (Seoul, KR)

Assignee: LG Electronics Inc.

H04L5/0055H04L1/1861H04W72/23

Abstract

Claims (44)

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

receiving downlink control information (DCI) through a physical downlink control channel (PDCCH); and

transmitting hybrid automatic repeat request (HARQ)-acknowledgement (ACK) information in a Type-3 HARQ-ACK codebook based on the DCI,

wherein, based on both i) the DCI requesting the UE to report the HARQ-ACK information for all HARQ processes of one or more serving cells configured for the UE and ii) the UE being configured to include a new data indicator (NDI) for each HARQ-ACK information, the UE includes a HARQ-ACK information bit for each transport block (TB) and an NDI value corresponding to the HARQ-ACK information bit in the Type-3 HARQ-ACK codebook.

2. The method of claim 1 ,

wherein even though spatial bundling is configured to generate a single HARQ-ACK information bit for each HARQ process based on HARQ-ACK information bits respectively corresponding to a plurality of TBs for each HARQ process, the spatial bundling is not performed, as an exception to the spatial bundling, for the Type-3 HARQ-ACK codebook configured to include each NDI value.

3. The method of claim 2 ,

wherein the exception to the spatial bundling is applied based on the Type-3 HARQ-ACK codebook being configured to include each NDI value.

4. The method of claim 2 ,

wherein, for a Type-1 or Type-2 HARQ-ACK codebook-based HARQ-ACK report different from the Type-3 HARQ-ACK codebook, the spatial bundling is performed on corresponding HARQ-ACK information bits for each transport block.

5. The method of claim 1 , further comprising:

receiving, through higher layer signaling, a configuration of the spatial bundling for a logical AND operation of HARQ-ACK information bits for each transport block, and a configuration for reporting a NDI for each HARQ-ACK information in the Type-3 HARQ-ACK codebook.

6. The method of claim 1 ,

wherein the one or more serving cells include a specific serving cell on which CBG (codeblock group)-based transmission is performed,

wherein the UE determines whether to perform a CBG-based HARQ-ACK report or a TB-based HARQ-ACK report for the specific serving cell through the type-3 HARQ-ACK codebook based on higher layer signaling.

7. The method of claim 6 ,

wherein even though the UE determines to perform a TB-based HARQ-ACK report for the specific serving cell through the Type-3 HARQ-ACK codebook based on the higher layer signaling, the UE performs a CBG-based HARQ-ACK report for the specific serving cell through a Type-1 or Type-2 codebook-based HARQ-ACK report different from the Type-3 HARQ-ACK codebook.

8. The method of claim 1 ,

wherein a HARQ-ACK information bit of lower indexed serving cell is mapped to lower index bit in the Type-3 HARQ-ACK codebook,

wherein, among HARQ-ACK information bits of the same index serving cell, a HARQ-ACK information bit of lower index HARQ process is mapped to lower index bit in the Type-3 HARQ-ACK codebook,

wherein, among HARQ-ACK information bits of the same index HARQ process, a HARQ-ACK information bit of lower index TB is mapped to lower index bit in the Type-3 HARQ-ACK codebook.

9. The method of claim 8 ,

wherein, among HARQ-ACK information bits of a plurality of codeblock groups (CBGs) included in a corresponding TB, a HARQ-ACK information bit of lower index CBG is mapped to lower index bit in the Type-3 HARQ-ACK codebook.

10. The method of claim 1 ,

wherein each NDI value included in the Type-3 HARQ-ACK codebook is configured with an NDI field value included in a corresponding DCI for scheduling a corresponding TB.

11. The method of claim 1 , further comprising:

receiving a first TB through a physical downlink shared channel (PDSCH) of a first serving cell based on TB-based scheduling; and

receiving CBGs of a second TB through a PDSCH of a second serving cell based on codeblock group (CBG)-based scheduling,

wherein the Type-3 HARQ-ACK codebook includes a TB-based HARQ-ACK information bit for the first TB, an NDI value for the first TB, and an NDI value for the second TB,

wherein the Type-3 HARQ-ACK codebook includes a TB-based HARQ-ACK information bit for the second TB or CBG-based HARQ-ACK information bits for CBGs of the second TB.

12. A user equipment (UE) configured to operate 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 downlink control information (DCI) through a physical downlink control channel (PDCCH); and

transmit a hybrid automatic repeat request (HARQ)-acknowledgement (ACK) information in a Type-3 HARQ-ACK codebook based on the DCI,

wherein, based on both i) the DCI requesting the UE to report the HARQ-ACK information for all HARQ processes of one or more serving cells configured for the UE and ii) the UE being configured to include a new data indicator (NDI) for each HARQ-ACK information, the processor includes a HARQ-ACK information bit for each transport block (TB) and an NDI value corresponding to the HARQ-ACK information bit in the Type-3 HARQ-ACK codebook.

13. A base station configured to operate 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 downlink control information (DCI) through a physical downlink control channel (PDCCH); and

receive hybrid automatic repeat request (HARQ)-acknowledgement (ACK) information in a Type-3 HARQ-ACK codebook based on the DCI,

wherein based on both i) the DCI requesting a user equipment (UE) to report the HARQ-ACK information for all HARQ processes of one or more serving cells configured for the UE and ii) the UE being configured to include a new data indicator (NDI) for each HARQ-ACK information, the Type-3 HARQ-ACK codebook includes a HARQ-ACK information bit for each transport block (TB) and an NDI value corresponding to the HARQ-ACK information bit.

Assignments (1)

Priority Claims (2)

Continuity (11)

Cited By (2)

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