Method, apparatus, and system for transmitting or receiving data channel and control channel in wireless communication system

Patent metadata

Field	Value
Publication number	US-12580687-B2
Application number	US-202217867139-A
Country	US
Kind code	B2
Filing date	Jul 18, 2022
Priority date	Aug 4, 2017
Publication date	Mar 17, 2026
Grant date	Mar 17, 2026

Abstract

Disclosed are a user equipment of a wireless communication system and a wireless communication method using the same. More specifically, disclosed are a user equipment including a processor configured to receive DCI through a PDCCH indicating PDSCH scheduling information of each cell in one or more cell(s), identify a transmission scheme in each cell based on a DCI format of the DCI, receive a PDSCH of each cell in the one or more cell(s) based on the scheduling information of the PDCCH, generate a hybrid automatic repeat request acknowledgment (HARQ-ACK) bit sequence for the one or more cell(s) based on the identified transmission scheme of each cell in response to receiving the PDSCH of each cell, and transmit the generated HARQ-ACK bit sequence and a wireless communication method using the same.

First claim

The invention claimed is:

1 . A user equipment configured to operate in a wireless communication system, the user equipment comprising:
a communication module; and a processor configured to control the communication module, wherein the processor is configured to: receive two or more downlink control information (DCIs) from a base station, wherein each DCI of the two or more DCIs is used for scheduling a physical downlink shared channel (PDSCH) reception on a corresponding cell among a plurality of cells, wherein each cell of the plurality of cells is configured with a Code Block Group (CBG) based transmission or a transport block (TB) based transmission, and wherein each DCI of the two or more DCIs includes a counter downlink assignment index (DAI), and is of a DCI format among a plurality of DCI formats, identify a TB-based PDSCH reception or a CBG-based PDSCH reception in at least one cell configured with the CBG based transmission among the plurality of cells based on the DCI format of a corresponding DCI among the two or more DCIs, perform the CBG-based PDSCH reception and the TB-based PDSCH reception in the at least one cell based on the two or more DCIs, and transmit a hybrid automatic repeat request acknowledgment (HARQ-ACK) codebook including a first HARQ-ACK sub-codebook for the TB-based PDSCH reception and a second HARQ-ACK sub-codebook for the CBG-based PDSCH reception, wherein each counter DAI of the two or more DCIs is separately applied to each of the first HARQ-ACK sub-codebook or the second HARQ-ACK sub-codebook.

2 . The user equipment of claim 1 ,
wherein the second HARQ-ACK sub-codebook is appended to the first HARQ-ACK sub-codebook, and wherein the first HARQ-ACK sub-codebook is located before the second HARQ-ACK sub-codebook.

3 . The user equipment of claim 1 ,
wherein the first HARQ-ACK sub-codebook includes one HARQ-ACK bit for each transport block, wherein the second HARQ-ACK sub-codebook includes ‘N’ HARQ-ACK bits, and wherein ‘N’ is related to a number of CBGs configured for the user equipment.

4 . The user equipment of claim 3 ,
wherein the second HARQ-ACK sub-codebook includes M ACK bits and N-M NACKs bits, when the CBG-based PDSCH reception is performed in the at least one cell among the plurality of cells, and ‘M’ is related to the number of CBGs configured in the cell of the at least one cell is less than the ‘N’.

5 . The user equipment of claim 1 ,
wherein the counter DAI is used to identify an accumulated number of PDSCHs scheduled.

6 . A method performed by a user equipment configured to operate in a wireless communication system, the method comprising:
receiving one two or more downlink control information (DCIs) from a base station, wherein each DCI of the two or more DCIs is used for scheduling a physical downlink shared channel (PDSCH) reception on a corresponding cell among a plurality of cells, wherein each cell of the plurality of cells is configured with a Code Block Group (CBG) based transmission or a transport block (TB) based transmission, and wherein each DCI of the two or more DCIs includes a counter downlink assignment index (DAI), and is of a DCI format among a plurality of DCI formats; identifying a TB-based PDSCH reception or a CBG-based PDSCH reception in at least one cell configured with the CBG based transmission among the plurality of cells based on the DCI format of a corresponding DCI among the two or more DCIs; performing the CBG-based PDSCH reception and the TB-based PDSCH reception in the at least one cell based on the two or more DCIs; and transmitting a hybrid automatic repeat request acknowledgment (HARQ-ACK) codebook including a first HARQ-ACK sub-codebook for the TB-based PDSCH reception and a second HARQ-ACK sub-codebook for the CBG-based PDSCH reception, wherein each counter DAI of the two or more DCIs is separately applied to each of the first HARQ-ACK sub-codebook or the second HARQ-ACK sub-codebooks.

7 . The method of claim 6 ,
wherein the second HARQ-ACK sub-codebook is appended to the first HARQ-ACK sub-codebook, and wherein the HARQ-ACK sub-codebook is located before the second HARQ-ACK sub-codebook.

8 . The method of claim 6 ,
wherein the first HARQ-ACK sub-codebook includes one HARQ-ACK bit for each transport block, wherein the second HARQ-ACK sub-codebook includes ‘N’ HARQ-ACK bits, and wherein ‘N’ is related to a number of CBGs configured for the user equipment.

9 . The method of claim 8 ,
wherein the second HARQ-ACK sub-codebook includes M ACK bits and N-M NACKs bits, when the CBG-based PDSCH reception is performed in the at least one cell among the plurality of cells, and ‘M’ is related to the number of CBGs configured in the at least one cell and is less than the ‘N’.

10 . The method of claim 6 ,
wherein the counter DAI is used to identify an accumulated number of PDSCHs scheduled.

Assignees

• Wilus Inst Standards & Tech Inc

Inventors

• Choi Kyungjun
• Noh Minseok
• Kwak Jinsam

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/1273

  of downlink data flows · CPC title

• H04W28/04

  Error control · CPC title

• H04L5/0023

  Time-frequency-space · CPC title

• H04L5/001

  the frequencies being arranged in component carriers · CPC title