Search

KR-20260066738-A - Method and device for transmitting and receiving data and control information

KR20260066738AKR 20260066738 AKR20260066738 AKR 20260066738AKR-20260066738-A

Abstract

The present disclosure relates to a 5G or 6G communication system that supports a higher data transmission rate. A method and apparatus for transmitting and receiving data and control information are provided. The method comprises the step of determining a HARQ-ACK information bit, the step comprising determining a set of first start symbols for any PDCCH monitoring occupation and any serving cell, and generating the HARQ-ACK information bit if a first start symbol within the set of first start symbols satisfies a first predefined condition. The first start symbols are start symbols of candidate PDSCH receptions for the PDCCH monitoring occupation and the serving cell. Additionally, the method comprises the step of transmitting the determined HARQ-ACK information bit. The first predefined condition above includes that the second start symbol is identical to the first start symbol, and the second start symbol is a start symbol of a PDSCH reception scheduled by the DCI format, and the step of generating the HARQ-ACK information bit includes the step of generating a HARQ-ACK information bit for a transmission block or code block group of the PDSCH reception scheduled by the DCI format.

Inventors

  • 장, 사
  • 첸, 쩌
  • 선, 페이페이

Assignees

  • 삼성전자주식회사

Dates

Publication Date
20260512
Application Date
20240924
Priority Date
20230925

Claims (15)

  1. In a method performed by a terminal in a communication system, A step of determining physical downlink control channel (PDCCH) monitoring occasions for a Type-2 hybrid automatic repeat request acknowledgment (HARQ-ACK) codebook; A step of determining the Type-2 HARQ-ACK codebook based on the above PDCCH monitoring occupations; and The method includes the step of transmitting the Type-2 HARQ-ACK codebook on a physical uplink control channel (PUCCH), The step of determining the above Type-2 HARQ-ACK codebook is: A method comprising the step of determining HARQ-ACK information bits for a Type-2 HARQ-ACK codebook when there is a PDSCH reception in the first serving cell, which is scheduled by a downlink control information (DCI) format that schedules one or more physical downlink shared channels (PDSCH) in one or more serving cells for a first PDCCH monitoring occupancy and a first serving cell, wherein the DCI format is associated with the first PDCCH monitoring occupancy among the PDCCH monitoring occupancy, and the first serving cell corresponds to the smallest serving cell index among the one or more serving cells.
  2. In paragraph 1, A method in which, when multiple PDSCHs scheduled by multiple DCI formats are received in a second serving cell in a second PDCCH monitoring occupation among the above PDCCH monitoring occupations, for the determination of the Type-2 HARQ-ACK codebook, the second serving cell is counted by the number of multiple PDSCHs in ascending order of the PDSCH reception start times of the multiple PDSCHs for the second PDCCH monitoring occupation, wherein the number is greater than 1.
  3. In paragraph 2, A method in which, when the above terminal indicates the terminal capability of type2-HARQ-ACK-Codebook, the second serving cell is counted by the number of times.
  4. In paragraph 1, A method in which the HARQ-ACK information bits are determined when a setting related to a serving cell set for the above DCI format is received.
  5. In paragraph 1, A method in which more than one of the above PDSCHs provide more than one transmission block having activated HARQ-ACK information.
  6. In paragraph 5, The above DCI format schedules more than one PDSCH for each of the more than one serving cells, and A method in which more than one PDSCH provides each of more than one transmission blocks having the activated HARQ-ACK information.
  7. In a terminal of a communication system, Transmitter/receiver; and It includes a processor connected to the above-mentioned transmitter and receiver, The above processor is: Determine physical downlink control channel (PDCCH) monitoring occasions for the Type-2 hybrid automatic repeat request acknowledgment (HARQ-ACK) codebook; Determining the Type-2 HARQ-ACK codebook based on the above PDCCH monitoring locations; and The physical uplink control channel (PUCCH) is configured to transmit the Type-2 HARQ-ACK codebook, and To determine the above Type-2 HARQ-ACK codebook, the processor: A terminal, wherein when there is a PDSCH reception in the first serving cell scheduled by a downlink control information (DCI) format that schedules one or more physical downlink shared channels (PDSCH) in one or more serving cells for a first PDCCH monitoring occupancy and a first serving cell, the method includes the step of determining HARQ-ACK information bits for the type-2 HARQ-ACK codebook, wherein the DCI format is associated with the first PDCCH monitoring occupancy among the PDCCH monitoring occupancy, and the first serving cell corresponds to the smallest serving cell index among the one or more serving cells.
  8. In Paragraph 7, When multiple PDSCHs scheduled by multiple DCI formats in a second PDCCH monitoring occupancy among the above PDCCH monitoring occupancy are received in a second serving cell, for the determination of the Type-2 HARQ-ACK codebook, the second serving cell counts the number of multiple PDSCHs in ascending order of the PDSCH reception start times of the multiple PDSCHs for the second PDCCH monitoring occupancy, and the number is greater than 1, terminal.
  9. In paragraph 8, A terminal in which, when the above terminal indicates the terminal capability of type2-HARQ-ACK-Codebook, the second serving cell is counted by the above number.
  10. In Paragraph 7, A terminal in which the HARQ-ACK information bits are determined when a setting related to a serving cell set for the above DCI format is received.
  11. In Paragraph 7, A terminal that provides more than one transmission block having activated HARQ-ACK information, wherein the above more than one PDSCH.
  12. In Paragraph 11, The above DCI format schedules more than one PDSCH for each of the more than one serving cells, and A terminal that provides each of the above more than one PDSCHs having the above more than one transmission blocks having the above activated HARQ-ACK information.
  13. In a method performed by a base station in a communication system, The step of transmitting at least one physical downlink control channel (PDCCH), wherein the at least one PDCCH is associated with at least some of the PDCCH monitoring occupations with respect to a Type-2 hybrid automatic repeat request acknowledgment (HARQ-ACK) codebook; and The method includes the step of receiving the Type-2 HARQ-ACK codebook on a physical uplink control channel (PUCCH), The above Type-2 HARQ-ACK codebook is based on the above PDCCH monitoring occupations, and In the case where there is a PDSCH transmission in a first serving cell scheduled by a downlink control information (DCI) format that schedules more than one physical downlink shared channel (PDSCH) in more than one serving cell, the type-2 HARQ-ACK codebook is associated with a first PDCCH monitoring occupancy and HARQ-ACK information bits for the first serving cell, and A method in which the above DCI format is associated with the first PDCCH monitoring occupancy among the above PDCCH monitoring occupancy, and the first serving cell corresponds to the smallest serving cell index among the one or more serving cells.
  14. In Paragraph 13, A method in which, when multiple PDSCHs scheduled by multiple DCI formats are transmitted from a second serving cell in a second PDCCH monitoring occupancy among the above PDCCH monitoring occupancy, for the Type-2 HARQ-ACK codebook, the second serving cell is counted by the number of multiple PDSCHs in ascending order of the PDSCH transmission start times of the multiple PDSCHs for the second PDCCH monitoring occupancy, and the number is greater than 1.
  15. In a base station of a communication system, Transmitter/receiver; and It includes a processor connected to the above-mentioned transmitter and receiver, The above processor is: Transmit at least one physical downlink control channel (PDCCH), said at least one PDCCH is associated with at least some of the PDCCH monitoring occupations with respect to a Type-2 hybrid automatic repeat request acknowledgment (HARQ-ACK) codebook; and The physical uplink control channel (PUCCH) is configured to receive the Type-2 HARQ-ACK codebook, and The above Type-2 HARQ-ACK codebook is based on the above PDCCH monitoring occupations, and In the case where there is a PDSCH transmission in a first serving cell scheduled by a downlink control information (DCI) format that schedules more than one physical downlink shared channel (PDSCH) in more than one serving cell, the type-2 HARQ-ACK codebook is associated with a first PDCCH monitoring occupancy and HARQ-ACK information bits for the first serving cell, and The above DCI format is associated with the first PDCCH monitoring location among the above PDCCH monitoring locations, and the first serving cell corresponds to the smallest serving cell index among the one or more serving cells, a base station.

Description

Method and device for transmitting and receiving data and control information The present disclosure relates to wireless communication technology, and more specifically, to a method and apparatus for transmitting and receiving data and control information in a wireless communication system. Efforts to develop improved 5G or pre-5G communication systems have continued to meet the increasing demand for wireless data communication services following the establishment of 4G communication systems. Therefore, 5G or pre-5G communication systems are also referred to as “Beyond 4G networks” or “Post-LTE systems.” 5G communication systems are implemented in high-frequency (millimeter, mmWave) bands, such as the 60 GHz band, to achieve higher data transmission rates. In 5G communication systems, technologies such as beamforming, massive MIMO (multiple-input multiple-output), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and large-scale antennas are discussed to reduce propagation loss and increase transmission distance. In addition, in 5G communication systems, system network improvements are being made based on advanced small cell, cloud radio access network (cloud RAN), ultra-dense network, device-to-device (D2D) communication, wireless backhaul, mobile network, cooperative communication, CoMP (coordinated multi-points), and reception-end interference cancellation. In 5G systems, advanced coding modulation (ACM) technologies such as FQAM (hybrid FSK and QAM modulation) and SWSC (sliding window superposition coding) are being developed, and advanced access technologies such as FBMC (filter bank multicarrier), NOMA (non-orthogonal multiple access), and SCMA (sparse code multiple access) are being developed. Fifth-generation (5G) mobile communication technology defines wide frequency bands to enable high transmission rates and new services, and can be implemented not only in “Sub 6 GHz” bands such as 3.5 GHz, but also in “Above 6 GHz” bands, referred to as mmWave, including 28 GHz and 39 GHz. In addition, the implementation of 6G mobile communication technology (referred to as a Beyond 5G system) in the terahertz band (e.g., 95 GHz to 3 THz band) has been considered to achieve transmission rates 50 times faster than 5G mobile communication technology and ultra-low latency that is one-tenth the level of 5G mobile communication technology. In the early stages of 5G mobile communication technology, aiming to support services and satisfy performance requirements for Enhanced Mobile Broadband (eMBB), Ultra Reliable & Low Latency Communications (URLLC), and Massive Machine-Type Communications (mMTC), technologies included beamforming and massive MIMO to mitigate propagation path loss and increase transmission distance in the mmWave band; dynamic operation of numerology (e.g., operation of multiple subcarrier spacing) and slot formats for the efficient utilization of mmWave resources; initial access techniques to support multi-beam transmission and broadband; the definition and operation of Bandwidth Parts (BWP); new channel coding methods such as Low Density Parity Check (LDPC) codes for high-volume data transmission and polar codes for the reliable transmission of control information; L2 pre-processing; and specific services Standardization has been carried out for network slicing, which provides specialized dedicated networks. Currently, discussions are underway regarding the improvement and performance enhancement of early 5G mobile communication technology in terms of services to be supported by 5G mobile communication technology. Physical layer standardization has been progressing for technologies such as V2X (Vehicle-to-Everything), which aims to assist autonomous vehicles in making driving decisions and increase user convenience based on information regarding the location and status of vehicles transmitted by vehicles; NR-U (New Radio Unlicensed), which aims to operate systems that meet various regulatory requirements in unlicensed bands; NR terminal power saving (UE power saving); Non-Terrestrial Network (NTN), which is direct terminal-satellite communication to provide coverage in areas where communication with terrestrial networks is impossible; and positioning. In addition, standardization is underway in the field of wireless interface architecture/protocols for technologies such as the Industrial Internet of Things (IIoT) to support new services through interoperability and convergence with other industries, Integrated Access and Backhaul (IAB) which provides nodes to expand network service areas by integrally supporting wireless backhaul links and access links, mobility enhancement technologies including conditional handover and Dual Active Protocol Stack (DAPS) handover, and 2-step Random Access (2-step RACH for NR) which simplifies random access procedures. Furthermore, standardization has also been underway in the field of system architecture/services for 5G basic architectures (e.g., s