WO2020066026A1 - Terminal utilisateur, et procédé de communication sans fil - Google Patents

Terminal utilisateur, et procédé de communication sans fil Download PDF

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Publication number
WO2020066026A1
WO2020066026A1 PCT/JP2018/036600 JP2018036600W WO2020066026A1 WO 2020066026 A1 WO2020066026 A1 WO 2020066026A1 JP 2018036600 W JP2018036600 W JP 2018036600W WO 2020066026 A1 WO2020066026 A1 WO 2020066026A1
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WIPO (PCT)
Prior art keywords
harq
ack
sub
transmission
codebook
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PCT/JP2018/036600
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English (en)
Japanese (ja)
Inventor
翔平 吉岡
一樹 武田
聡 永田
シャオツェン グオ
リフェ ワン
ギョウリン コウ
Original Assignee
株式会社Ｎｔｔドコモ
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Application filed by 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to PCT/JP2018/036600 priority Critical patent/WO2020066026A1/fr
Priority to JP2020547890A priority patent/JPWO2020066026A1/ja
Publication of WO2020066026A1 publication Critical patent/WO2020066026A1/fr
Priority to JP2023117956A priority patent/JP2023156318A/ja

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals

Definitions

  • the present disclosure relates to a user terminal and a wireless communication method in a next-generation mobile communication system.
  • LTE Long Term Evolution
  • 3GPP@Rel.10-14 LTE-Advanced
  • LTE Long Term Evolution
  • 5G + fifth generation mobile communication system
  • NR New Radio
  • 3GPP Rel. 15 or later A successor system to LTE (for example, 5G (5th generation mobile communication system), 5G + (plus), NR (New Radio), 3GPP Rel. 15 or later) is also being studied.
  • a user terminal transmits an uplink control channel (for example, PUCCH: Physical Uplink @ Control @ Channel) or an uplink shared channel (for example, PUSCH: Physical @ Uplink @ Shared @ Channel).
  • PUCCH Physical Uplink @ Control @ Channel
  • PUSCH Physical @ Uplink @ Shared @ Channel
  • UCI Uplink ⁇ Control ⁇ Information
  • the configuration (format) of the uplink control channel is called a PUCCH format or the like.
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • HARQ-ACK Hybrid Automatic Repeat reQuest ACKnowledgement
  • the UE feeds back the HARQ-ACK based on the codebook (on a codebook basis), but how to control the generation of the HARQ-ACK codebook when multiple HARQ-ACKs are transmitted in the same slot. Is a problem. If the HARQ-ACK codebook cannot be generated properly, system performance may be degraded.
  • an object of the present disclosure is to provide a user terminal and a wireless communication method that can appropriately generate an HARQ-ACK codebook even when transmission timings of a plurality of HARQ-ACKs are the same.
  • a user terminal includes a control unit configured to generate a HARQ-ACK (Hybrid Automatic Repeat Repeat reQuest ACKnowledgement) codebook based on a plurality of downlink data having different communication requirements, and the HARQ-ACK in one uplink channel resource. And a transmission unit for transmitting an ACK codebook.
  • HARQ-ACK Hybrid Automatic Repeat Repeat reQuest ACKnowledgement
  • FIG. 1 is a diagram illustrating an example of HARQ-ACK feedback of a UE that supports only the eMBB service.
  • FIG. 2 is a diagram illustrating an example of HARQ-ACK feedback of a UE supporting only a URLLC service.
  • FIG. 3 is a diagram illustrating an example of HARQ-ACK feedback of a UE supporting an eMBB service and a URLLC service.
  • FIG. 4 is a diagram showing an example of HARQ-ACK codebook generation according to example 1-1.
  • 5A and 5B are diagrams illustrating an example of HARQ-ACK codebook generation according to connection method 1 and CBG setting methods 1 and 2 of aspect 1-2.
  • FIG. 6A and 6B are diagrams illustrating an example of HARQ-ACK codebook generation according to the connection method 2 and the CBG setting methods 1 and 2 of aspect 1-2.
  • FIG. 7 is a diagram showing an example of HARQ-ACK codebook generation according to example 2-1.
  • 8A and 8B are diagrams illustrating an example of HARQ-ACK codebook generation according to connection method 1, sub-subcodebook connection method 1, and CBG setting methods 1 and 2 in aspect 2-2-1.
  • 9A and 9B are diagrams showing an example of HARQ-ACK codebook generation according to the connection method 1, the sub-subcodebook connection method 2, and the CBG setting methods 1 and 2 of aspect 2-2-1.
  • 10A and 10B are diagrams illustrating an example of HARQ-ACK codebook generation according to the connection method 2 and the sub-subcodebook connection method 1 and the CBG setting methods 1 and 2 of aspect 2-2-1.
  • 11A and 11B are diagrams illustrating an example of HARQ-ACK codebook generation according to the connection method 2 and the sub-sub-codebook connection method 2 and the CBG setting methods 1 and 2 of aspect 2-2-1.
  • 12A and 12B are diagrams illustrating an example of HARQ-ACK codebook generation according to connection method 1, sub-subcodebook connection method 1, and CBG setting methods 1 and 2 of aspect 2-2-2.
  • FIGS. 13A and 13B are diagrams illustrating an example of HARQ-ACK codebook generation according to the connection method 1, the sub-subcodebook connection method 2, and the CBG setting methods 1 and 2 of aspect 2-2-2.
  • FIGS. 14A and 14B are diagrams illustrating an example of HARQ-ACK codebook generation according to the connection method 2, the sub-subcodebook connection method 1, and the CBG setting methods 1 and 2 of aspect 2-2-2.
  • FIGS. 15A and 15B are diagrams illustrating an example of HARQ-ACK codebook generation according to connection method 2 and sub-subcodebook connection method 2 and CBG setting methods 1 and 2 of aspect 2-2-2.
  • FIG. 16 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment.
  • FIG. 16 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment.
  • FIG. 17 is a diagram illustrating an example of a configuration of a base station according to the embodiment.
  • FIG. 18 is a diagram illustrating an example of a configuration of a user terminal according to an embodiment.
  • FIG. 19 is a diagram illustrating an example of a hardware configuration of the base station and the user terminal according to the embodiment.
  • the user terminal may relocate the HARQ-ACK codebook (which may be referred to as HARQ-ACK size) to semi-static or dynamic. A decision is being considered.
  • the base station transmits, to the user terminal, information indicating the method of determining the HARQ-ACK codebook, for example, information indicating whether the HARQ-ACK codebook is quasi-static or dynamic, for each component carrier, for each cell group ( It may be notified by higher layer signaling for each Cell Group (CG), for each PUCCH group, or for each user terminal.
  • CG Cell Group
  • the HARQ-ACK codebook may be replaced with the HARQ-ACK codebook of PDSCH, the HARQ-ACK codebook size, the number of HARQ-ACK bits, and the like.
  • the upper layer signaling may be, for example, any one of RRC signaling, MAC (Medium Access Control) signaling, broadcast information, or a combination thereof.
  • the MAC signaling may use, for example, a MAC control element (MAC Control Element, MAC CE), MAC PDU (Protocol Data Unit), or the like.
  • the broadcast information includes, for example, a master information block (Master ⁇ Information ⁇ Block (MIB)), a system information block (System ⁇ Information ⁇ Block (SIB)), minimum system information (Remaining ⁇ Minimum ⁇ System ⁇ Information (RMSI)), and other system information (RMSI). Other ⁇ System ⁇ Information (OSI)) or the like.
  • the user terminal determines (generates) HARQ-ACK information bits based on the determined HARQ-ACK codebook for each component carrier, each cell group, each PUCCH group, or each user terminal, and generates the generated HARQ-ACK. May be transmitted using at least one of the uplink control channel (PUCCH) and the uplink shared channel (PUSCH).
  • PUCCH uplink control channel
  • PUSCH uplink shared channel
  • the determination of the HARQ-ACK codebook is: It may be referred to as a Type 1 HARQ-ACK codebook decision. If the user terminal is configured to dynamically determine a HARQ-ACK codebook, or if a dynamic HARQ-ACK codebook is configured, the determination of the HARQ-ACK codebook may be a type 2 HARQ. - May be referred to as ACK codebook determination.
  • the Type 1 HARQ-ACK codebook and the quasi-static HARQ-ACK codebook may be read interchangeably.
  • the type 2 HARQ-ACK codebook and the dynamic HARQ-ACK codebook may be interchanged.
  • the user terminal may determine the number of HARQ-ACK bits and the like based on the configuration set by higher layer signaling.
  • the configured configuration may include, for example, DL (Downlink) transmission scheduled over a range associated with the feedback timing of HARQ-ACK, such as the maximum or minimum number of PDSCHs.
  • the range is also called an HARQ-ACK bundling window (bundlingundwindow), an HARQ-ACK feedback window, a bundling window, a feedback window, and the like.
  • the bundling window may correspond to at least one of a space, a time, and a frequency.
  • the user terminal determines the number of HARQ-ACK bits based on downlink control information, for example, a bit string of a DL assignment index (Downlink @ Assignment @ Index (DAI)) field included in the DL assignment. May be determined.
  • DAI Downlink @ Assignment @ Index
  • the $ DAI field may indicate at least one of the total DAI and the counter DAI.
  • the total DAI is information on the total number of DL data (PDSCH) to be scheduled, and may correspond to the total number of bits or codebook size of HARQ-ACK fed back by the user terminal.
  • the counter DAI is information on the cumulative value of the DL data (PDSCH) to be scheduled.
  • the counter DAI numbered in the order of the component carrier index is included in the downlink control information (Downlink Control Information (DCI)) of one or more component carriers detected in a certain time unit, for example, a slot or a subframe. It may be.
  • DCI Downlink Control Information
  • the counter DAI may be applied over the plurality of time units.
  • the UE sets a code block group (CBG) -based (CBG-based) transmission (CBG-based HARQ-ACK codebook determination (determination)) according to an upper layer parameter (PDSCH code block group transmission information element, PDSCH-CodeBlockGroupTransmission). If not, the UE assumes transport block (TB) -based (TB-based) transmission (TB-based HARQ-ACK codebook decision). That is, the UE generates HARQ-ACK information bits for each TB.
  • CBG code block group
  • TB-based HARQ-ACK codebook decision transport block
  • the UE When the UE is provided with the upper layer parameter of the PDSCH code block group transmission information element for the serving cell (Component Carrier: CC), the UE receives the PDSCH including a plurality of CBGs of one TB.
  • the PDSCH code block group transmission information element includes the maximum number of CBGs (maxCodeBlockGroupsPerTransportBlock) in one TB.
  • the UE generates HARQ-ACK information bits of a plurality of CBGs for TB reception of the serving cell and generates a HARQ-ACK codebook including the maximum number of HARQ-ACK information bits of the CBG.
  • the DCI used for scheduling of the PDSCH may include CBG transmission information (CBG Transmission Information: CBGTI) or may include CBG emission information (CBG Transmission Flush Out Information: CBGFI).
  • CBGTI may indicate which CBG in the TB is transmitted.
  • CBGFI may indicate whether the retransmitted CBG is combinable with the same CBG previously received.
  • the UE may be instructed whether CBGFI is valid or not by an upper layer parameter (codeBlockGroupFlushIndicator) in the PDSCH code block group transmission information element.
  • the user terminal determines the transmission timing of HARQ-ACK corresponding to the received PDSCH based on the DCI that schedules the PDSCH.
  • the timing may be referred to as PDSCH-to-ACK timing, K1, or the like.
  • the DCI may be called DL DCI, DL assignment, DCI format 1_0, DCI format 1_1, and so on.
  • the user terminal when detecting the DCI format 1_0, determines the last symbol of the PDSCH based on the HARQ timing indication field (PDSCH-to-HARQ-timing-indicator @ field) included in the DCI. Based on the included slot n, HARQ-ACK corresponding to the PDSCH is transmitted in slot (n + k) (for example, k is an integer from 1 to 8).
  • HARQ timing indication field PDSCH-to-HARQ-timing-indicator @ field
  • the user terminal When detecting the DCI format 1_1, the user terminal includes the last symbol of the PDSCH based on the HARQ timing indication field (PDSCH-to-HARQ-timing-indicator @ field) included in the DCI. Based on slot n, HARQ-ACK corresponding to the PDSCH is transmitted in slot (n + k) (for example, k is an integer from 1 to 8).
  • k is an integer from 1 to 8.
  • the correspondence between k and the timing indication field may be set in the user terminal for each PUCCH, PUCCH group, or cell group by higher layer signaling.
  • the correspondence may be set by a parameter included in a PUCCH configuration information element (PUCCH configuration information element) of RRC signaling.
  • the parameter may be called dl-DataToUL-ACK, Slot-timing-value-K1, or the like.
  • a plurality of candidate values of the PDSCH-to-ACK timing indication may be set by K1 by higher layer signaling, and one of the plurality of candidate values may be indicated by the DCI for PDSCH scheduling.
  • K1 may be set for each PUCCH group or cell group.
  • K1 may be a channel transmitting a HARQ-ACK, for example, a time determined based on a PUCCH or PUSCH numerology (eg, a subcarrier interval).
  • PUCCH resource In a future wireless communication system (for example, LTE Rel. 15 or later, 5G, NR, etc.), a configuration (also referred to as a format, a PUCCH format (PF), etc.) for an uplink control channel (for example, PUCCH) used for UCI transmission. Is being considered.
  • PFs 0 and 1 are PFs used to transmit UCI of 2 bits or less (up to 2 bits) (for example, acknowledgment information (HARQ-ACK: Hybrid Automatic Repeat Repeat reQuest-Acknowledge, ACK or NACK, etc.)). It is. Since PF0 can be assigned to one or two symbols, it is also called a short PUCCH, a sequence-based short PUCCH, or the like. On the other hand, PF1 can be assigned to 4-14 symbols, and is therefore also called long PUCCH or the like. In PF1, a plurality of user terminals may be code division multiplexed (CDM) in the same PRB by block spreading in the time domain using at least one of CS and OCC.
  • CDM code division multiplexed
  • the PF2-4 is used for transmitting UCI (for example, Channel State Information (CSI: Channel State Information) (or CSI and HARQ-ACK and / or scheduling request (SR)) more than 2 bits).
  • UCI for example, Channel State Information (CSI: Channel State Information) (or CSI and HARQ-ACK and / or scheduling request (SR)) more than 2 bits).
  • CSI Channel State Information
  • SR scheduling request
  • PF2 can be assigned to one or two symbols, it is also called short PUCCH or the like.
  • PF3 and PF4 are also called long PUCCH or the like because they can be assigned to 4-14 symbols.
  • PF4 a plurality of user terminals may be subjected to CDM using block spreading before (DFT) (frequency domain).
  • DFT block spreading before
  • the upper layer signaling is, for example, at least one of RRC (Radio Resource Control) signaling, system information (for example, RMSI: Remaining Minimum System Information, OSI: Other system information, MIB: Master Information Block, SIB: System Information Block). And broadcast information (PBCH: Physical @ Broadcast @ Channel).
  • RRC Radio Resource Control
  • system information for example, RMSI: Remaining Minimum System Information
  • OSI Other system information
  • MIB Master Information Block
  • SIB System Information Block
  • broadcast information PBCH: Physical @ Broadcast @ Channel.
  • one or more sets (PUCCH resource sets) each containing one or more PUCCH resources are notified (configured) to the user terminal by higher layer signaling.
  • K for example, 1 ⁇ K ⁇ 4
  • PUCCH resource sets may be notified from the radio base station to the user terminal.
  • Each PUCCH resource set may include M (for example, 8 ⁇ M ⁇ 32) PUCCH resources.
  • the user terminal may determine a single PUCCH resource set from the set K PUCCH resource sets based on the UCI payload size (UCI payload size).
  • the UCI payload size may be the number of UCI bits that do not include Cyclic Redundancy Code (CRC) bits.
  • the user terminal uses, from the M PUCCH resources included in the determined PUCCH resource set, DCI (PUCCH resource notification field, PUCCH resource indicator field) and implicit information (implicit indication information or PUCCH resources to be used for UCI transmission may be determined based on at least one of the following:
  • the implicit indication may be at least one of the number of CCEs in the PDCCH reception CORESET carrying the DCI, the index of the first CCE of the PDCCH reception, and the number of PUCCH resources in the PUCCH resource set. .
  • PUCCH resource sets # 0 to # 3 are set for a user terminal, the user terminal selects any PUCCH resource set based on the UCI payload size.
  • PUCCH resource set # 0 when the UCI payload size is 1 or 2 bits, PUCCH resource set # 0 is selected. When the UCI payload size is 3 bits or more and N 2 -1 bits or less, PUCCH resource set # 1 is selected. If the UCI payload size is equal to or greater than N 2 bits and equal to or less than N 3 -1 bits, PUCCH resource set # 2 is selected. Similarly, UCI payload size is less than or equal N 3 -1 bits 3 bits or more N, PUCCH resource set # 3 is selected.
  • PUCCH resource set #i (i 0, ..., K-1) in the range of UCI payload size to be selected, N i bits or more N i + 1 -1 bit or less (i.e., ⁇ N i, ..., N i + 1 ⁇ 1 ⁇ bits).
  • the start positions (number of start bits) N 0 and N 1 of the UCI payload size for PUCCH resource sets # 0 and # 1 may be 1, 3 respectively.
  • PUCCH resource set # 0 when transmitting UCI of 2 bits or less, PUCCH resource set # 0 is selected, so that PUCCH resource set # 0 includes PUCCH resources # 0 to # M-1 for at least one of PF0 and PF1. May be included.
  • PUCCH resource sets # 1 to # 3 is selected, so that PUCCH resource sets # 1 to # 3 each include at least one of PF2, PF3 and PF4. PUCCH resources # 0 to # M-1.
  • the UE is notified of the transmission timing (eg, K1) of HARQ-ACK for the PDSCH using DCI for scheduling the PDSCH.
  • K1 may be information on a slot in which a PUCCH resource is set.
  • the UE controls transmission of HARQ-ACK based on the PUCCH resource set notified from the base station and the transmission timing of HARQ-ACK notified by DCI for scheduling PDSCH.
  • HARQ-ACK transmission is controlled using the HARQ-ACK codebook (in units of the HARQ-ACK codebook).
  • the UE may not expect to transmit multiple PUCCHs with HARQ-ACK information in one slot.
  • the UE may multiplex the plurality of HARQ-ACKs into one HARQ-ACK codebook in one slot.
  • a UE supporting only the eMBB service may determine one PUCCH resource for transmission of one HARQ-ACK codebook based on the last detected DCI, as shown in FIG.
  • the UE may transmit a plurality of PUCCHs having HARQ-ACK information in one slot in order to reduce latency.
  • the UE may divide the plurality of HARQ-ACKs into a plurality of HARQ-ACK codebooks in one slot even when the feedback timing of a plurality of HARQ-ACKs for a plurality of PDSCHs is indicated in the same slot. Good.
  • the UE supporting only the URLLC service is instructed to the slot (SL # 7) in which the HARQ-ACK feedback timings of PDSCH # 1 and # 2 are the same as in FIG. , # 2, different PUCCH resources in the same slot may be used.
  • the UE supports multiple services with different requirements (eg, if it supports both eMBB and URLLC services, or if the UE supports two URLLC services with different requirements).
  • multiple services with different requirements eg, if it supports both eMBB and URLLC services, or if the UE supports two URLLC services with different requirements
  • HARQ-ACK for PDSCH # 1 of the eMBB service transmitted in slot (SL_ # 1), HARQ-ACK for PDSCH # 2 of the eMBB service transmitted in slot (SL_ # 2), HARQ-ACK for the URLSCH service PDSCH # 3 transmitted in the slot (SL_ # 3) and HARQ-ACK for the URLLC service PDSCH # 4 transmitted in the slot (SL_ # 4) have the same transmission timing. (Here, a case where the slot is set to the slot (SL_ # 7)) is shown.
  • the present inventors have conceived of generating HARQ-ACK information based on a plurality of downlink data having different communication requirements and transmitting the HARQ-ACK information in one uplink channel resource.
  • a service includes communication requirements (requirement, for example, requirements such as reliability and latency), parameters used for scheduling (MCS (Modulation and Coding Scheme) table, RNTI (Radio Network @ Temporary @ Identifier)).
  • MCS Modulation and Coding Scheme
  • RNTI Radio Network @ Temporary @ Identifier
  • the UE may use (configure) different MCS tables for PDSCHs of different services.
  • the CRC of the DCI for PDSCH scheduling of different services may be scrambled with different RNTIs.
  • the service type (or traffic type) corresponding to URLLC and the service type corresponding to eMBB may be identified based on at least one of the following.
  • Logical channels having different priorities Modulation and Coding Scheme (MCS) table (MCS index table) DCI format Used for scrambling (masking) Cyclic Redundancy Check (CRC) bits included (added) in the DCI (DCI format) (Radio Network Temporary Identifier (RNTI)) ) -RRC (Radio Resource Control) parameters-Specific RNTI (for example, RNTI for URLLC, MCS-C-RNTI, etc.) • Search space • Predetermined fields in DCI (eg, newly added fields or reuse of existing fields)
  • MCS index table DCI format Used for scrambling (masking) Cyclic Redundancy Check (CRC) bits included (added) in the DCI (DCI format) (Radio Network Temporary Identifier (RNTI)) ) -RRC (Radio Resource Control) parameters-Specific RNTI (
  • the UE supports the first service and the second service
  • the first service is an eMBB service
  • the second service is a URLLC service.
  • the first service may be a first URLLC service.
  • the second service may be a second URLLC service having requirements different from those of the first URLLC service.
  • Case 2 describes an example in which the UE sets CBG-based transmission only for the eMBB service.
  • TB-based transmission is used for the URLLC service because the reliability of the URLLC service is high, the probability of retransmission is low, the delay of the URLLC service is small, and the number of HARQ-ACK information bits is preferably small.
  • the UE sets TB-based transmission for the eMBB service (first service) and performs CBG-based transmission for the URLLC service (second service).
  • the following embodiments can also be applied when transmission is set.
  • the following embodiments can be applied to a case where the first service is a URLLC service and the second service is an eMBB service.
  • one HARQ-ACK codebook includes a plurality of HARQ-ACK sub-codebooks (sub-codebooks) and a case where one HARQ-ACK subcodebook includes a plurality of HARQ-ACK sub-codebooks (sub-sub-books). and a case where the HARQ-ACK codebook is included, the HARQ-ACK codebook may be used instead of the HARQ-ACK subcodebook.
  • one HARQ-ACK codebook may be read as two concatenated HARQ-ACK codebooks, a HARQ-ACK subcodebook may be read as a HARQ-ACK codebook, and HARQ-ACK.
  • the sub-subcodebook may be read as a HARQ-ACK subcodebook.
  • the UE transmits HARQ-ACK codebooks for a plurality of PDSCHs on one PUCCH resource, but the UE may transmit (piggyback) on one PUSCH resource.
  • the UE is configured with a transport block (TB) -based (TB-based) HARQ-ACK.
  • TB transport block
  • CBG code block group
  • the UE is configured for TB-based transmission and CBG-based transmission.
  • the UE may collectively generate a plurality of HARQ-ACKs for different services. In other words, the UE may generate multiple HARQ-ACKs for different services without discrimination. The UE may generate information in which a plurality of HARQ-ACKs for different services are mixed.
  • the UE may perform different operations for Cases 1 and 2 described above.
  • the UE may jointly code HARQ-ACK for different services.
  • the UE may count DAIs for different services together.
  • the first service is an eMBB service and the second service is a URLLC service.
  • FIG. 4 is a diagram showing an example of HARQ-ACK codebook generation according to example 1-1.
  • the UE is not configured for CBG-based transmission for CCs 1, 2, and 3. Therefore, the UE generates an HARQ-ACK for TB-based transmission in CCs 1, 2, and 3 (performs a TB-based HARQ-ACK codebook decision).
  • the UE receives the PDSCH of the eMBB service in CCs 1 and 2, and receives the PDSCH of the URLLC service in CCs 2 and 3.
  • UE counts DAI for TB based transmission regardless of PDSCH service.
  • the UE counts the counter DAI in CC index order, and then counts the counter DAI in slot index order.
  • the UE counts the total DAI in the order of the slot index.
  • the UE generates one HARQ-ACK information bit per 1 TB.
  • the UE arranges the HARQ-ACK information bits in the HARQ-ACK codebook in CC index order, and then arranges the HARQ-ACK information bits in the HARQ-ACK codebook in slot index order. In other words, the UE configures the HARQ-ACK codebook regardless of the first service and the second service.
  • the UE can appropriately transmit HARQ-ACKs for PDSCHs of different services as one HARQ-ACK codebook.
  • the UE may generate two HARQ-ACK subcodebooks (subcodebooks).
  • the two sub-codebooks may be a sub-codebook for TB-based transmission and a sub-codebook for CBG-based transmission.
  • the UE may determine the position of the HARQ-ACK information bits in the HARQ-ACK codebook based on the service corresponding to the HARQ-ACK information bits.
  • the UE may continuously arrange HARQ-ACK information bits for TB-based transmission in the HARQ-ACK codebook, and continuously arrange HARQ-ACK information bits for base transmission in the HARQ-ACK codebook. .
  • the UE may set CBG-based transmission for at least one of the first service and the second service according to one of the following CBG setting methods 1 and 2. Good.
  • the UE may expect the PDSCH of the first service to be a CBG-based transmission and may generate an HARQ-ACK for the CBG-based transmission of the first service ( A CBG-based HARQ-ACK codebook decision may be made).
  • the DCI for scheduling the PDSCH of the first service may include information indicating a CBG to be transmitted (CBG transmission information, for example, CBGTI).
  • the UE may expect the PDSCH of the second service to be a TB-based transmission and may generate an HARQ-ACK for the TB-based transmission of the second service ( A TB-based HARQ-ACK codebook decision may be made).
  • the DCI for scheduling the PDSCH of the second service may not include information indicating a CBG to be transmitted (CBG transmission information, for example, CBGTI).
  • CBG-based transmission may not be applied to the PDSCH of the second service on the serving cell.
  • CBG setting method 2 In the serving cell in which CBG-based transmission is set by higher layer signaling, the UE expects the PDSCH to be CBG-based transmission regardless of whether it is the first service or the second service, and performs HARQ-based transmission for CBG-based transmission.
  • An ACK may be generated (a CBG-based HARQ-ACK codebook decision may be made).
  • DCI for PDSCH scheduling may include information indicating a CBG to be transmitted (CBG transmission information, for example, CBGTI).
  • the UE may generate one HARQ-ACK codebook by concatenating the two sub-codebooks.
  • the UE may link the two sub-codebooks according to one of the following linking methods 1 and 2.
  • the UE may separately count the DAI for TB-based transmission and the DAI for CBG-based transmission.
  • FIG. 5A is a diagram showing an example of HARQ-ACK codebook generation according to connection method 1 and CBG setting method 1 of aspect 1-2. Mainly, differences from FIG. 4 will be described.
  • the UE is set to CBG-based transmission for CC2, and is set to 4 as the maximum number of CBGs.
  • the UE expects the PDSCH of the CC2 eMBB service to be a CBG-based transmission.
  • the UE expects the PDSCH of the URLLC service of CC2 to be TB-based transmission. Therefore, the UE generates HARQ-ACK for eMBB service and CBG-based transmission and HARQ-ACK for URLLC service and TB-based transmission in CC2.
  • the UE separately counts the DAI for TB-based transmission and the DAI for CBG-based transmission independently of the PDSCH service.
  • the UE generates one HARQ-ACK information bit for each TB for TB-based transmission and one HARQ-ACK information bit for each CBG for CBG-based transmission.
  • the UE arranges HARQ-ACK information bits for TB-based transmission in the first sub-codebook in CC index order and slot index order, and places HARQ-ACK information bits for CBG-based transmission in CC index order and slot index order in 2 bits. Place in the third subcodebook.
  • FIG. 5B is a diagram showing an example of HARQ-ACK codebook generation according to connection method 1 and CBG setting method 2 of aspect 1-2. Mainly, differences from FIG. 5A will be described.
  • the UE is set to CBG-based transmission for CC2, and is set to 4 as the maximum number of CBGs.
  • the UE expects the PDSCH of the eMBB service of CC2 to be a CBG-based transmission, and expects the PDSCH of the URLLC service of CC2 to be a CBG-based transmission. Therefore, the UE generates HARQ-ACK for eMBB service and CBG-based transmission and HARQ-ACK for URLLC service and CBG-based transmission in CC2.
  • FIG. 6A is a diagram showing an example of HARQ-ACK codebook generation according to connection method 2 and CBG setting method 1 of aspect 1-2. Mainly, differences from FIG. 5A will be described.
  • the UE arranges HARQ-ACK information bits for CBG-based transmission in the first sub-codebook in CC index order and slot index order, and places HARQ-ACK information bits for TB-based transmission in CC index order and slot index order in 2 bits. Place in the third subcodebook.
  • FIG. 6B is a diagram showing an example of HARQ-ACK codebook generation according to connection method 2 and CBG setting method 2 of example 1-2. Mainly, differences from FIG. 6A will be described.
  • the UE is set to CBG-based transmission for CC2, and is set to 4 as the maximum number of CBGs.
  • the UE expects the PDSCH of the eMBB service of CC2 to be a CBG-based transmission, and expects the PDSCH of the URLLC service of CC2 to be a CBG-based transmission. Therefore, the UE generates HARQ-ACK for eMBB service and CBG-based transmission and HARQ-ACK for URLLC service and CBG-based transmission in CC2.
  • HARQ-ACKs for those PDSCHs are appropriately transmitted as one HARQ-ACK codebook. it can.
  • the UE may separately generate multiple HARQ-ACKs for different services. In other words, the UE may generate HARQ-ACKs for each service and concatenate them.
  • the UE may perform different operations for Cases 1 and 2 described above.
  • the UE may generate two HARQ-ACK subcodebooks (subcodebooks).
  • the two subcodebooks may be a subcodebook for the first service and a subcodebook for the second service.
  • the UE may determine the position of the HARQ-ACK information bits in the HARQ-ACK codebook based on the service corresponding to the HARQ-ACK information bits.
  • the UE may continuously arrange HARQ-ACK information bits for the first service in the HARQ-ACK codebook, and may continuously arrange HARQ-ACK information bits for the second service in the HARQ-ACK codebook. May be.
  • the UE may generate one HARQ-ACK codebook by concatenating the two sub-codebooks.
  • the UE may link the two sub-codebooks according to one of the following linking methods 1 and 2.
  • the UE may separately count the DAI for the first service and the DAI for the second service.
  • FIG. 7 is a diagram showing an example of HARQ-ACK codebook generation according to example 2-1.
  • the UE is not configured for CBG-based transmission for CCs 1, 2, and 3. Therefore, the UE generates an HARQ-ACK for TB-based transmission in CCs 1, 2, and 3.
  • the UE receives the PDSCH of the eMBB service in CCs 1 and 2, and receives the PDSCH of the URLLC service in CCs 2 and 3.
  • the UE separately counts the DAI for the eMBB service and the DAI for the URLLC service.
  • the UE counts the counter DAI in CC index order, and then counts the counter DAI in slot index order.
  • the UE counts the total DAI in the order of the slot index.
  • the UE generates one HARQ-ACK information bit per 1 TB.
  • the UE When using the concatenation method 1 (HARQ-ACK codebook 1), the UE arranges HARQ-ACK information bits for the eMBB service in the first sub-codebook in CC index order and slot index order, and the HARQ-ACK for the URLLC service.
  • the ACK information bits are arranged in the second sub-codebook in CC index order and slot index order.
  • the UE When the concatenation method 2 is used (HARQ-ACK codebook 2), the UE arranges HARQ-ACK information bits for the URLLC service in the first sub-codebook in the order of CC index and slot index, and sets the HARQ-ACK for the eMBB service.
  • the ACK information bits are arranged in the second sub-codebook in CC index order and slot index order.
  • the UE can appropriately transmit HARQ-ACKs for PDSCHs of different services as one HARQ-ACK codebook.
  • the UE may generate two HARQ-ACK subcodebooks (subcodebooks).
  • the UE may generate two sub-codebooks according to one of the following aspects 2-2-1 and 2-2-2.
  • the two subcodebooks may be a subcodebook for the first service and a subcodebook for the second service.
  • the UE may determine the position of the HARQ-ACK information bits in the HARQ-ACK codebook based on the service corresponding to the HARQ-ACK information bits.
  • the UE may continuously arrange HARQ-ACK information bits for the first service in the HARQ-ACK codebook, and may continuously arrange HARQ-ACK information bits for the second service in the HARQ-ACK codebook. May be.
  • the UE may generate two HARQ-ACK sub-subcodebooks (sub-subcodebooks) for the sub-codebook for the first service.
  • the two sub-subcodebooks for the first service may be a sub-subcodebook for TB-based transmission and a sub-subcodebook for CBG-based transmission.
  • the UE may generate one sub-codebook by concatenating two sub-sub-codebooks.
  • the UE may connect the two sub-sub-codebooks according to one of the following sub-sub-codebook connection methods 1 and 2.
  • Sub-subcode book linking method 1 The UE places the sub-subcodebook for TB-based transmission first.
  • the UE may be configured to perform CBG-based transmission for at least one of the first service and the second service according to the following CBG configuration methods 1 and 2.
  • the UE may expect that the PDSCH of the first service is CBG-based transmission in the serving cell for which CBG-based transmission is configured by higher layer signaling. Accordingly, the UE may generate an HARQ-ACK for the CBG-based transmission in the first service.
  • the UE may expect the PDSCH of the second service to be TB-based transmission in the serving cell for which CBG-based transmission has been configured by higher layer signaling. Accordingly, the UE may generate a HARQ-ACK for the TB-based transmission in the second service.
  • the UE may generate one sub-sub-codebook as the sub-codebook for the second service.
  • This sub-subcodebook may be a sub-subcodebook for TB-based transmission.
  • the UE may expect the PDSCH to be CBG-based transmission in the serving cell for which CBG-based transmission is configured by higher layer signaling, regardless of whether the service is the first service or the second service. Accordingly, the UE may generate an HARQ-ACK for CBG-based transmission in both the first service and the second service.
  • the UE may generate two sub-sub-codebooks for the sub-codebook for the second service.
  • the two sub-subcodebooks may be a sub-subcodebook for TB-based transmission and a sub-subcodebook for CBG-based transmission.
  • the UE may generate one sub-codebook by concatenating two sub-sub-codebooks.
  • the UE may connect the two sub-sub-codebooks according to one of the following sub-sub-codebook connection methods 1 and 2.
  • Sub-subcode book linking method 1 The UE places the sub-subcodebook for TB-based transmission first.
  • the UE may generate one HARQ-ACK codebook by concatenating the two sub-codebooks.
  • the UE may link the two sub-codebooks according to one of the following linking methods 1 and 2.
  • the UE may separately encode the sub-codebook for the first service and the sub-codebook for the second service.
  • the UE separates the DAI for the first service and the TB based transmission, the DAI for the first service and the CBG based transmission, the DAI for the second service and the TB based transmission, and the DAI for the second service and the CBG based transmission separately. You may count.
  • FIG. 8A is a diagram showing an example of HARQ-ACK codebook generation according to connection method 1, sub-subcodebook connection method 1, and CBG setting method 1 in aspect 2-2-1. Mainly, differences from FIG. 7 will be described.
  • the UE is set to CBG-based transmission for CC2, and is set to 4 as the maximum number of CBGs.
  • the UE expects the PDSCH of the CC2 eMBB service to be a CBG-based transmission.
  • the UE expects the PDSCH of the URLLC service of CC2 to be TB-based transmission. Therefore, the UE generates HARQ-ACK for eMBB service and CBG-based transmission and HARQ-ACK for URLLC service and TB-based transmission in CC2.
  • the UE separately counts the DAI of the TB-based transmission of the eMBB service, the DAI of the CBG-based transmission of the eMBB service, and the DAI of the TB-based transmission of the URLLC service.
  • the UE generates one HARQ-ACK information bit for each TB for TB-based transmission and one HARQ-ACK information bit for each CBG for CBG-based transmission.
  • the UE arranges HARQ-ACK information bits for eMBB service and TB-based transmission in the first sub-subcodebook of the first subcodebook in CC index order and slot index order, and arranges HARQ-ACK information bits for eMBB service and CBG-based transmission.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index. Further, the UE arranges HARQ-ACK information bits for URLLC service and TB-based transmission in the second sub-codebook (sub-subcodebook) in CC index order and slot index order.
  • FIG. 8B is a diagram showing an example of HARQ-ACK codebook generation according to connection method 1, sub-subcodebook connection method 1, and CBG setting method 2 in aspect 2-2-1. Mainly, differences from FIG. 8A will be described.
  • the UE is set to CBG-based transmission for CC2, and is set to 4 as the maximum number of CBGs.
  • the UE expects the PDSCH of the eMBB service of CC2 to be a CBG-based transmission, and expects the PDSCH of the URLLC service of CC2 to be a CBG-based transmission. Therefore, the UE generates HARQ-ACK for eMBB service and CBG-based transmission and HARQ-ACK for URLLC service and CBG-based transmission in CC2.
  • the UE separately counts the DAI of the TB-based transmission of the eMBB service, the DAI of the CBG-based transmission of the eMBB service, the DAI of the TB-based transmission of the URLLC service, and the DAI of the CBG-based transmission of the URLLC service.
  • the UE arranges HARQ-ACK information bits for eMBB service and TB-based transmission in the first sub-subcodebook of the first subcodebook in CC index order and slot index order, and arranges HARQ-ACK information bits for eMBB service and CBG-based transmission.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index.
  • the UE arranges the HARQ-ACK information bits for the URLLC service and the TB-based transmission in the first sub-subcodebook of the second subcodebook in the order of the CC index and the slot index, and the HARQ for the URLLC service and the CBG-based transmission.
  • FIG. 9A is a diagram showing an example of HARQ-ACK codebook generation according to connection method 1, sub-subcodebook connection method 2, and CBG setting method 1 in aspect 2-2-1. Mainly, differences from FIG. 8A will be described.
  • the UE arranges HARQ-ACK information bits for the eMBB service and the CBG-based transmission in the first sub-codebook of the first sub-codebook in the order of the CC index and the slot index, and arranges the HARQ-ACK information bits for the eMBB service and the TB-based transmission.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index. Further, the UE arranges HARQ-ACK information bits for URLLC service and TB-based transmission in the second sub-codebook (sub-subcodebook) in CC index order and slot index order.
  • FIG. 9B is a diagram showing an example of HARQ-ACK codebook generation according to connection method 1, sub-subcodebook connection method 2, and CBG setting method 2 in aspect 2-2-1. Mainly, differences from FIG. 8A will be described.
  • the UE is set to CBG-based transmission for CC2, and is set to 4 as the maximum number of CBGs.
  • the UE expects the PDSCH of the eMBB service of CC2 to be a CBG-based transmission, and expects the PDSCH of the URLLC service of CC2 to be a CBG-based transmission. Therefore, the UE generates HARQ-ACK for eMBB service and CBG-based transmission and HARQ-ACK for URLLC service and CBG-based transmission in CC2.
  • the UE arranges HARQ-ACK information bits for the eMBB service and the CBG-based transmission in the first sub-codebook of the first sub-codebook in the order of the CC index and the slot index, and arranges the HARQ-ACK information bits for the eMBB service and the TB-based transmission.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index.
  • the UE arranges HARQ-ACK information bits for the URLLC service and the CBG-based transmission in the first sub-subcodebook of the second subcodebook in the order of the CC index and the slot index, and the HARQ for the URLLC service and the TB-based transmission.
  • FIG. 10A is a diagram showing an example of HARQ-ACK codebook generation according to connection method 2, sub-subcodebook connection method 1, and CBG setting method 1 in aspect 2-2-1. Mainly, differences from FIG. 8A will be described.
  • the UE arranges the HARQ-ACK information bits for the URLLC service and the TB-based transmission in the first sub-codebook (sub-subcodebook) in the order of the CC index and the slot index. Further, the UE arranges HARQ-ACK information bits for eMBB service and TB-based transmission in the first sub-subcodebook of the second subcodebook in CC index order and slot index order, and HARQ for eMBB service and CBG-based transmission. -Place the ACK information bits in the second sub-codebook of the second sub-codebook in CC index order and slot index order.
  • FIG. 10B is a diagram showing an example of HARQ-ACK codebook generation according to the connection method 2 and the sub-sub-codebook connection method 1 and the CBG setting method 2 in aspect 2-2-1. Mainly, differences from FIG. 8B will be described.
  • the UE arranges the HARQ-ACK information bits for the URLLC service and the TB-based transmission in the first sub-codebook of the first subcodebook in the order of the CC index and the slot index, and arranges the HARQ-ACK information bits for the URLLC service and the CBG-based transmission.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index.
  • the UE arranges HARQ-ACK information bits for eMBB service and TB-based transmission in the first sub-subcodebook of the second subcodebook in CC index order and slot index order, and HARQ for eMBB service and CBG-based transmission.
  • FIG. 11A is a diagram showing an example of HARQ-ACK codebook generation according to connection method 2 and sub-subcodebook connection method 2 and CBG setting method 1 in aspect 2-2-1. The difference from FIG. 9A will be mainly described.
  • the UE arranges the HARQ-ACK information bits for the URLLC service and the TB-based transmission in the first sub-codebook (sub-subcodebook) in the order of the CC index and the slot index. Further, the UE arranges HARQ-ACK information bits for eMBB service and CBG-based transmission in the first sub-subcodebook of the second subcodebook in CC index order and slot index order, and HARQ for eMBB service and TB-based transmission. -Place the ACK information bits in the second sub-codebook of the second sub-codebook in CC index order and slot index order.
  • FIG. 11B is a diagram showing an example of HARQ-ACK codebook generation according to connection method 2 and sub-subcodebook connection method 2 and CBG setting method 2 in aspect 2-2-1. Mainly, differences from FIG. 9B will be described.
  • the UE arranges the HARQ-ACK information bits for the URLLC service and the CBG-based transmission in the first sub-codebook of the first sub-codebook in the order of the CC index and the slot index, and arranges the HARQ-ACK information bits for the URLLC service and the TB-based transmission.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index.
  • the UE arranges HARQ-ACK information bits for eMBB service and CBG-based transmission in the first sub-subcodebook of the second subcodebook in CC index order and slot index order, and HARQ for eMBB service and TB-based transmission.
  • the two sub-codebooks may be a sub-codebook for TB-based transmission and a sub-codebook for CBG-based transmission.
  • the UE may determine the position of the HARQ-ACK information bits in the HARQ-ACK codebook based on whether the HARQ-ACK information bits correspond to CBG-based transmission.
  • the UE may continuously arrange HARQ-ACK information bits for TB-based transmission in the HARQ-ACK codebook, or continuously arrange HARQ-ACK information bits for CBG-based transmission in the HARQ-ACK codebook. May be.
  • the UE may generate two HARQ-ACK sub-sub-codebooks (sub-sub-codebooks) for the sub-codebook for TB-based transmission.
  • the two sub-subcodebooks may be a sub-subcodebook for the first service and a sub-subcodebook for the second service.
  • the UE may generate one sub-codebook by concatenating two sub-sub-codebooks.
  • the UE may connect the two sub-sub-codebooks according to one of the following sub-sub-codebook connection methods 1 and 2.
  • Sub-subcode book linking method 1 The UE arranges the sub-subcodebook for the first service first.
  • Sub-subcode book linking method 2 The UE arranges the sub-subcodebook for the second service first.
  • the UE may be configured for CBG-based transmission for at least one of the first service and the second service according to one of the following CBG configuration methods 1 and 2.
  • the UE may expect that the PDSCH of the first service is CBG-based transmission in the serving cell for which CBG-based transmission is configured by higher layer signaling. Accordingly, the UE may generate an HARQ-ACK for the CBG-based transmission in the first service.
  • the UE may expect the PDSCH of the second service to be TB-based transmission in the serving cell for which CBG-based transmission has been configured by higher layer signaling. Accordingly, the UE may generate a HARQ-ACK for the TB-based transmission in the second service.
  • the UE may generate one sub-sub-codebook as a sub-codebook for CBG-based transmission.
  • This sub-sub-codebook may be a sub-sub-codebook for the first service.
  • the UE may expect the PDSCH to be CBG-based transmission in the serving cell for which CBG-based transmission is configured by higher layer signaling, regardless of whether the service is the first service or the second service. Accordingly, the UE may generate an HARQ-ACK for CBG-based transmission in both the first service and the second service.
  • the UE may generate two sub-sub-codebooks for the sub-codebook for CBG-based transmission.
  • the two sub-subcodebooks may be a sub-subcodebook for the first service and a sub-subcodebook for the second service.
  • the UE may generate one sub-codebook by concatenating two sub-sub-codebooks.
  • the UE may connect the two sub-sub-codebooks according to one of the following sub-sub-codebook connection methods 1 and 2.
  • Sub-subcode book linking method 1 The UE arranges the sub-subcodebook for the first service first.
  • Sub-subcode book linking method 2 The UE arranges the sub-subcodebook for the second service first.
  • the UE may generate one HARQ-ACK codebook by concatenating the two sub-codebooks.
  • the UE may link the two sub-codebooks according to one of the following linking methods 1 and 2.
  • the UE may separately encode the sub-codebook for TB-based transmission and the sub-codebook for CBG-based transmission.
  • the UE separates the DAI for the first service and the TB based transmission, the DAI for the first service and the CBG based transmission, the DAI for the second service and the TB based transmission, and the DAI for the second service and the CBG based transmission separately. You may count.
  • FIG. 12A is a diagram illustrating an example of HARQ-ACK codebook generation according to connection method 1, sub-subcodebook connection method 1, and CBG setting method 1 in aspect 2-2-2. Mainly, differences from FIG. 8A will be described.
  • the UE arranges HARQ-ACK information bits for TB-based transmission and eMBB service in the first sub-codebook of the first sub-codebook in CC index order and slot index order, and arranges HARQ-ACK information bits for TB-based transmission and URLLC service.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index. Further, the UE arranges HARQ-ACK information bits for CBG-based transmission and eMBB service in the second sub-codebook (sub-subcodebook) in CC index order and slot index order.
  • FIG. 12B is a diagram showing an example of HARQ-ACK codebook generation according to the connection method 1, the sub-subcodebook connection method 1, and the CBG setting method 2 in aspect 2-2-2. Mainly, differences from FIG. 8B will be described.
  • the UE arranges HARQ-ACK information bits for TB-based transmission and eMBB service in the first sub-codebook of the first sub-codebook in CC index order and slot index order, and arranges HARQ-ACK information bits for TB-based transmission and URLLC service.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index.
  • the UE arranges HARQ-ACK information bits for CBG-based transmission and eMBB service in the first sub-sub-codebook of the second sub-codebook in CC index order and slot index order, and HARQ for CBG-based transmission and URLLC service.
  • FIG. 13A is a diagram showing an example of HARQ-ACK codebook generation according to connection method 1, sub-subcodebook connection method 2, and CBG setting method 1 in aspect 2-2-2. The difference from FIG. 9A will be mainly described.
  • the UE arranges HARQ-ACK information bits for TB-based transmission and URLLC service in the first sub-subcodebook of the first subcodebook in CC index order and slot index order, and transmits HARQ-ACK information bits for TB-based transmission and eMBB service.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index. Further, the UE arranges HARQ-ACK information bits for CBG-based transmission and eMBB service in the second sub-codebook (sub-subcodebook) in CC index order and slot index order.
  • FIG. 13B is a diagram showing an example of HARQ-ACK codebook generation according to connection method 1, sub-subcodebook connection method 2, and CBG setting method 2 of aspect 2-2-2. Mainly, differences from FIG. 9B will be described.
  • the UE arranges HARQ-ACK information bits for TB-based transmission and URLLC service in the first sub-subcodebook of the first subcodebook in CC index order and slot index order, and transmits HARQ-ACK information bits for TB-based transmission and eMBB service.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index.
  • the UE arranges the HARQ-ACK information bits for the CBG-based transmission and the URLLC service in the first sub-subcodebook of the second subcodebook in the order of the CC index and the slot index, and the HARQ for the CBG-based transmission and the eMBB service.
  • -Place ACK information bits in the first sub-subcodebook of the second subcodebook in CC index order and slot index order.
  • FIG. 14A is a diagram showing an example of HARQ-ACK codebook generation according to the connection method 2 and the sub-subcodebook connection method 1 and the CBG setting method 1 in aspect 2-2-2. Mainly, differences from FIG. 10A will be described.
  • the UE arranges HARQ-ACK information bits for CBG-based transmission and eMBB service in the first sub-codebook (sub-subcodebook) in CC index order and slot index order. Further, the UE arranges HARQ-ACK information bits for TB-based transmission and eMBB service in the first sub-sub-codebook of the second sub-codebook in CC index order and slot index order, and HARQ for TB-based transmission and URLLC service. -Place the ACK information bits in the second sub-codebook of the second sub-codebook in CC index order and slot index order.
  • FIG. 14B is a diagram showing an example of HARQ-ACK codebook generation according to the connection method 2 and the sub-subcodebook connection method 1 and the CBG setting method 2 in aspect 2-2-2. Mainly, differences from FIG. 10B will be described.
  • the UE arranges HARQ-ACK information bits for CBG-based transmission and eMBB service in the first sub-subcodebook of the first subcodebook in CC index order and slot index order, and arranges HARQ-ACK information bits for CBG-based transmission and URLLC service.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index.
  • the UE arranges HARQ-ACK information bits for TB-based transmission and eMBB service in the first sub-sub-codebook of the second sub-codebook in CC index order and slot index order, and HARQ for TB-based transmission and URLLC service.
  • FIG. 15A is a diagram showing an example of HARQ-ACK codebook generation according to connection method 2, sub-subcodebook connection method 2, and CBG setting method 1 in aspect 2-2-2. Mainly, differences from FIG. 11A will be described.
  • the UE arranges HARQ-ACK information bits for CBG-based transmission and eMBB service in the first sub-codebook (sub-subcodebook) in CC index order and slot index order. Further, the UE arranges HARQ-ACK information bits for TB-based transmission and URLLC service in the first sub-sub-codebook of the second sub-codebook in CC index order and slot index order, and HARQ for TB-based transmission and eMBB service. -Place ACK information bits in the second sub-subcodebook of the first second subcodebook in the order of CC index and slot index.
  • FIG. 15B is a diagram showing an example of HARQ-ACK codebook generation according to connection method 2, sub-subcodebook connection method 2, and CBG setting method 2 in aspect 2-2-2. Mainly, differences from FIG. 11B will be described.
  • the UE arranges the HARQ-ACK information bits for the CBG-based transmission and the URLLC service in the first sub-sub-codebook of the first sub-codebook in the order of the CC index and the slot index, and arranges the HARQ-ACK information bits for the CBG-based transmission and the eMBB service.
  • the ACK information bits are arranged in the second sub-subcodebook of the first subcodebook in the order of CC index and slot index.
  • the UE arranges HARQ-ACK information bits for TB-based transmission and URLLC service in the first sub-sub-codebook of the second sub-codebook in CC index order and slot index order, and HARQ for TB-based transmission and eMBB service.
  • HARQ-ACKs for those PDSCHs are appropriately set as one HARQ-ACK codebook. Can be sent.
  • the UE may apply the HARQ-ACK codebook generation rule as shown in aspect 1 or aspect 2.
  • the UE may follow at least one of the following operations AC.
  • the PUCCH resource including the HARQ-ACK for the first service transmits the HARQ-ACK for the second service. If the PUCCH resource that includes the HARQ-ACK for the first service and the PUCCH resource that includes the HARQ-ACK for the second service overlap with the same PUSCH, the UE uses the HARQ-ACK code. Apply book generation rules.
  • the UE can generate an appropriate HARQ-ACK codebook according to the situation.
  • the UE may copy the HARQ-ACK information bits for the specific service in the HARQ-ACK codebook of aspect 1 and insert the bits into the HARQ-ACK codebook.
  • the specific service may be a URLLC service. Thereby, the reliability of the URLLC service can be made higher than the reliability of other services.
  • the UE may encode the HARQ-ACK information bits in the HARQ-ACK codebook of aspect 2 such that the coding rates are different between the first service and the second service, and / or may be transmitted on an uplink channel. May control the amount of coded bits.
  • the coding rate of HARQ-ACK for the URLLC service may be lower than the coding rate of HARQ-ACK for the eMBB service. Thereby, the reliability of the URLLC service can be made higher than the reliability of the eMBB service.
  • wireless communication system Wireless communication system
  • communication is performed using any of the wireless communication methods according to the above embodiments of the present disclosure or a combination thereof.
  • FIG. 16 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment.
  • the wireless communication system 1 may be a system that realizes communication using LTE (Long Term Evolution) and 5G NR (5th generation mobile communication system New Radio) specified by 3GPP (Third Generation Partnership Project). .
  • LTE Long Term Evolution
  • 5G NR Fifth Generation mobile communication system New Radio
  • the wireless communication system 1 may support dual connectivity between a plurality of RATs (Radio Access Technology) (multi-RAT dual connectivity (MR-DC: Multi-RAT Dual Connectivity)).
  • MR-DC is based on dual connectivity (EN-DC: E-UTRA-NR @ Dual Connectivity) between LTE (Evolved Universal Terrestrial Radio Access) and NR, and dual connectivity (NE-DC with E-UTRA-NR Dual Connectivity).
  • -DC NR-E-UTRA (Dual Connectivity) may be included.
  • the base station (eNB) of LTE (E-UTRA) is a master node (MN: Master @ Node), and the base station (gNB) of NR is a secondary node (SN: Secondary @ Node).
  • MN Master @ Node
  • gNB secondary node
  • SN Secondary @ Node
  • the NR base station (gNB) is the MN
  • the LTE (E-UTRA) base station (eNB) is the SN.
  • the wireless communication system 1 has dual connectivity between a plurality of base stations in the same RAT (for example, dual connectivity in which both MN and SN are NR base stations (gNB) (NN-DC: NR-NR Dual Connectivity)). ) May be supported.
  • a plurality of base stations in the same RAT for example, dual connectivity in which both MN and SN are NR base stations (gNB) (NN-DC: NR-NR Dual Connectivity)).
  • the wireless communication system 1 includes a base station 11 forming a macro cell C1 having relatively wide coverage, and a base station 12 (12a to 12c) arranged in the macro cell C1 and forming a small cell C2 smaller than the macro cell C1. May be provided.
  • User terminal 20 may be located in at least one cell. The arrangement, number, and the like of each cell and the user terminals 20 are not limited to the modes shown in the figure.
  • the base stations 11 and 12 are not distinguished, they are collectively referred to as a base station 10.
  • the user terminal 20 may be connected to at least one of the plurality of base stations 10.
  • the user terminal 20 may use at least one of carrier aggregation (Carrier Aggregation) using a plurality of component carriers (CC: Component Carrier) and dual connectivity (DC).
  • Carrier Aggregation Carrier Aggregation
  • CC Component Carrier
  • DC dual connectivity
  • Each CC may be included in at least one of the first frequency band (FR1: FrequencyFRange 1) and the second frequency band (FR2: Frequency Range 2).
  • the macro cell C1 may be included in FR1, and the small cell C2 may be included in FR2.
  • FR1 may be a frequency band of 6 GHz or less (sub-6 GHz (sub-6 GHz)), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz).
  • the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a frequency band higher than FR2.
  • the user terminal 20 may perform communication using at least one of time division duplex (TDD: Time Division Duplex) and frequency division duplex (FDD: Frequency Division Duplex) in each CC.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • the plurality of base stations 10 may be connected by wire (for example, an optical fiber compliant with CPRI (Common Public Radio Interface), an X2 interface, or the like) or wirelessly (for example, NR communication).
  • wire for example, an optical fiber compliant with CPRI (Common Public Radio Interface), an X2 interface, or the like
  • NR communication for example, when NR communication is used as a backhaul between the base stations 11 and 12, the base station 11 corresponding to the upper station is an IAB (Integrated Access Backhaul) donor, and the base station 12 corresponding to the relay station (relay) is the IAB It may be called a node.
  • IAB Integrated Access Backhaul
  • the base station 10 may be connected to the core network 30 via another base station 10 or directly.
  • the core network 30 may include, for example, at least one of Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), and the like.
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the user terminal 20 may be a terminal that supports at least one of the communication systems such as LTE, LTE-A, and 5G.
  • an orthogonal frequency division multiplexing (OFDM) based wireless access scheme may be used.
  • OFDM Orthogonal frequency division multiplexing
  • CP-OFDM Cyclic Prefix OFDM
  • DFT-s-OFDM Discrete Fourier Transform Spread OFDM
  • OFDMA Orthogonal Frequency Division Divide Multiple
  • SC-FDMA Single Carrier Frequency Frequency Division Multiple Access
  • the wireless access scheme may be referred to as a waveform.
  • another wireless access method for example, another single carrier transmission method or another multi-carrier transmission method
  • a downlink shared channel (PDSCH: Physical Downlink Shared Channel), a broadcast channel (PBCH: Physical Broadcast Channel), and a downlink control channel (PDCCH: Physical Downlink Control) are shared by the user terminals 20 as downlink channels. Channel) may be used.
  • PDSCH Physical Downlink Shared Channel
  • PBCH Physical Broadcast Channel
  • PDCCH Physical Downlink Control
  • an uplink shared channel (PUSCH: Physical Uplink Shared Channel) shared by each user terminal 20, an uplink control channel (PUCCH: Physical Uplink Control Channel), a random access channel (PRACH) : Physical Random Access Channel) or the like may be used.
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • PRACH random access channel
  • the user data, upper layer control information, SIB (System Information Block), and the like are transmitted by the PDSCH.
  • User data, higher layer control information, and the like may be transmitted by the PUSCH.
  • MIB Master Information Block
  • PBCH Physical Broadcast Channel
  • Lower layer control information may be transmitted by the PDCCH.
  • the lower layer control information may include, for example, downlink control information (DCI: Downlink Control Information) including scheduling information of at least one of the PDSCH and the PUSCH.
  • DCI Downlink Control Information
  • DCI for scheduling the PDSCH may be referred to as DL assignment, DL @ DCI, or the like
  • the DCI for scheduling the PUSCH may be referred to as UL grant, UL @ DCI, or the like.
  • PDSCH may be replaced with DL data
  • PUSCH may be replaced with UL data.
  • a control resource set (CORESET: Control REsource SET) and a search space (search space) may be used for detecting the PDCCH.
  • CORESET corresponds to a resource for searching DCI.
  • the search space corresponds to a search area and a search method of PDCCH candidates (PDCCH @ candidates).
  • One coreset may be associated with one or more search spaces.
  • the UE may monitor a RESET associated with a search space based on the search space settings.
  • One SS may correspond to a PDCCH candidate corresponding to one or a plurality of aggregation levels (aggregation Level).
  • One or more search spaces may be referred to as a search space set.
  • search space “search space”, “search space set”, “search space setting”, “search space set setting”, “CORESET”, “CORESET setting”, and the like in the present disclosure may be interchanged with each other.
  • channel state information (CSI: Channel State Information), acknowledgment information (for example, HARQ-ACK (Hybrid Automatic Repeat Repeat reQuest ACKnowledgement), ACK / NACK, etc.), scheduling request (SR: Scheduling Request) ) May be transmitted.
  • CSI Channel State Information
  • acknowledgment information for example, HARQ-ACK (Hybrid Automatic Repeat Repeat reQuest ACKnowledgement), ACK / NACK, etc.
  • scheduling request (SR: Scheduling Request)
  • a random access preamble for establishing a connection with a cell may be transmitted by the PRACH.
  • a downlink, an uplink, and the like may be expressed without a “link”.
  • various channels may be expressed without “Physical” at the beginning.
  • a synchronization signal (SS: Synchronization Signal), a downlink reference signal (DL-RS: Downlink Reference Signal), or the like may be transmitted.
  • a DL-RS a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), and a demodulation reference signal (DMRS: DeModulation) are provided.
  • Reference Signal a position determination reference signal (PRS: Positioning Reference Signal), a phase tracking reference signal (PTRS: Phase Tracking Reference Signal), and the like may be transmitted.
  • PRS Positioning Reference Signal
  • PTRS Phase Tracking Reference Signal
  • the synchronization signal may be, for example, at least one of a primary synchronization signal (PSS: Primary Synchronization Signal) and a secondary synchronization signal (SSS: Secondary Synchronization Signal).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • a signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be referred to as SS / PBCH block, SSB (SS @ Block), and the like. Note that SS, SSB, and the like may also be referred to as reference signals.
  • a measurement reference signal (SRS: Sounding Reference Signal), a demodulation reference signal (DMRS), and the like may be transmitted as an uplink reference signal (UL-RS: Uplink Reference Signal).
  • SRS Sounding Reference Signal
  • DMRS demodulation reference signal
  • UL-RS Uplink Reference Signal
  • the DMRS may be called a user terminal specific reference signal (UE-specific Reference Signal).
  • FIG. 17 is a diagram illustrating an example of a configuration of a base station according to the embodiment.
  • the base station 10 includes a control unit 110, a transmission / reception unit 120, a transmission / reception antenna 130, and a transmission line interface 140.
  • the control unit 110, the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140 may each include one or more.
  • base station 10 also has other functional blocks necessary for wireless communication. Some of the processes of each unit described below may be omitted.
  • the control unit 110 controls the entire base station 10.
  • the control unit 110 can be configured by a controller, a control circuit, and the like described based on common recognition in the technical field according to the present disclosure.
  • the control unit 110 may control signal generation, scheduling (for example, resource allocation, mapping), and the like.
  • the control unit 110 may control transmission / reception, measurement, and the like using the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140.
  • the control unit 110 may generate data to be transmitted as a signal, control information, a sequence, and the like, and transfer the generated data to the transmission / reception unit 120.
  • the control unit 110 may perform call processing (setting, release, etc.) of the communication channel, state management of the base station 10, management of radio resources, and the like.
  • the transmission / reception unit 120 may include a baseband unit 121, an RF (Radio Frequency) unit 122, and a measurement unit 123.
  • the baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212.
  • the transmission / reception unit 120 includes a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter (phase shifter), a measurement circuit, a transmission / reception circuit, and the like described based on common recognition in the technical field according to the present disclosure. be able to.
  • the transmission / reception unit 120 may be configured as an integrated transmission / reception unit, or may be configured from a transmission unit and a reception unit.
  • the transmission unit may include a transmission processing unit 1211 and an RF unit 122.
  • the receiving unit may include a reception processing unit 1212, an RF unit 122, and a measurement unit 123.
  • the transmission / reception antenna 130 can be configured from an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna or the like.
  • the transmission / reception unit 120 may transmit the above-described downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmission / reception unit 120 may receive the above-described uplink channel, uplink reference signal, and the like.
  • the transmission / reception unit 120 may form at least one of the transmission beam and the reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), or the like.
  • digital beamforming for example, precoding
  • analog beamforming for example, phase rotation
  • the transmission / reception unit 120 processes the data, control information, and the like acquired from the control unit 110 in the PDCP (Packet Data Convergence Protocol) layer and the RLC (Radio Link Control) layer processing (for example, RLC retransmission control), MAC (Medium Access Control) layer processing (for example, HARQ retransmission control), and the like may be performed to generate a bit string to be transmitted.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • the transmission / reception unit 120 performs channel coding (may include error correction coding), modulation, mapping, filter processing, and discrete Fourier transform (DFT: Discrete Fourier Transform) processing on a bit string to be transmitted.
  • channel coding may include error correction coding
  • modulation may include error correction coding
  • mapping may include error correction coding
  • filter processing may include discrete Fourier transform (DFT: Discrete Fourier Transform) processing on a bit string to be transmitted.
  • DFT discrete Fourier transform
  • Transmission processing such as Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-analog conversion (if necessary) may be performed to output a baseband signal.
  • IFFT Inverse Fast Fourier Transform
  • precoding may be performed to output a baseband signal.
  • digital-analog conversion if necessary
  • the transmission / reception unit 120 may perform modulation, filtering, amplification, and the like on the baseband signal into a radio frequency band, and transmit the signal in the radio frequency band via the transmission / reception antenna 130. .
  • the transmission / reception unit 120 may perform amplification, filtering, demodulation to a baseband signal, and the like on the radio frequency band signal received by the transmission / reception antenna 130.
  • the transmission / reception unit 120 (reception processing unit 1212) performs analog-to-digital conversion, fast Fourier transform (FFT: Fast Fourier Transform) processing, and inverse discrete Fourier transform (IDFT) on the acquired baseband signal. Applying reception processing such as processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, Etc. may be obtained.
  • FFT Fast Fourier Transform
  • IDFT inverse discrete Fourier transform
  • the transmission / reception unit 120 may measure the received signal.
  • the measurement unit 123 may perform RRM (Radio Resource Management) measurement, CSI (Channel State Information) measurement, or the like based on the received signal.
  • the measuring unit 123 receives the reception power (for example, RSRP (Reference Signal Received Power)), reception quality (for example, RSRQ (Reference Signal Received Quality), SINR (Signal to Interference plus Noise Ratio, SNR (Signal to Noise Ratio)).
  • Signal strength for example, RSSI (Received Signal Strength Indicator)
  • channel information for example, CSI
  • the measurement result may be output to the control unit 110.
  • the transmission line interface 140 transmits / receives signals (backhaul signaling) to / from a device included in the core network 30 or another base station 10, and transmits user data (user plane data) for the user terminal 20; Data and the like may be obtained and transmitted.
  • the transmission unit and the reception unit of the base station 10 may be configured by at least one of the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140.
  • the transmission / reception unit 120 may transmit the setting of whether to perform CBG-based transmission by higher layer signaling.
  • the transmission / reception unit 120 may transmit the downlink signal using a parameter (MCS table, RNTI, or the like) corresponding to the communication requirement.
  • FIG. 18 is a diagram illustrating an example of a configuration of a user terminal according to an embodiment.
  • the user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230. Note that one or more of the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may be provided.
  • the control unit 210 controls the entire user terminal 20.
  • the control unit 210 can be configured by a controller, a control circuit, and the like described based on common recognition in the technical field according to the present disclosure.
  • the control unit 210 may control signal generation, mapping, and the like.
  • the control unit 210 may control transmission / reception and measurement using the transmission / reception unit 220 and the transmission / reception antenna 230.
  • the control unit 210 may generate data to be transmitted as a signal, control information, a sequence, and the like, and transfer the generated data to the transmission / reception unit 220.
  • the transmission / reception unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223.
  • the baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212.
  • the transmission / reception unit 220 can be configured from a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, and the like, which are described based on common recognition in the technical field according to the present disclosure.
  • the transmission / reception unit 220 may be configured as an integrated transmission / reception unit, or may be configured from a transmission unit and a reception unit.
  • the transmission unit may include a transmission processing unit 2211 and an RF unit 222.
  • the receiving unit may include a reception processing unit 2212, an RF unit 222, and a measurement unit 223.
  • the transmission / reception antenna 230 can be configured from an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna or the like.
  • the transmission / reception unit 220 may receive the above-described downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmission / reception unit 220 may transmit the above-described uplink channel, uplink reference signal, and the like.
  • the transmission / reception unit 220 may form at least one of the transmission beam and the reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), or the like.
  • digital beamforming for example, precoding
  • analog beamforming for example, phase rotation
  • the transmission / reception unit 220 (transmission processing unit 2211) performs processing of the PDCP layer, processing of the RLC layer (for example, RLC retransmission control), processing of the MAC layer (for example, for data, control information, and the like acquired from the control unit 210, for example). , HARQ retransmission control), etc., to generate a bit string to be transmitted.
  • the transmission / reception unit 220 (transmission processing unit 2211) performs channel coding (which may include error correction coding), modulation, mapping, filter processing, DFT processing (if necessary), IFFT processing on the bit sequence to be transmitted. , Precoding, digital-analog conversion, etc., and output a baseband signal.
  • whether to apply the DFT processing may be based on the transform precoding setting.
  • the transmission / reception unit 220 transmits the channel using the DFT-s-OFDM waveform.
  • DFT processing may be performed as the transmission processing, or otherwise, DFT processing may not be performed as the transmission processing.
  • the transmission / reception unit 220 may perform modulation, filtering, amplification, and the like on the baseband signal into a radio frequency band, and transmit a signal in the radio frequency band via the transmission / reception antenna 230. .
  • the transmission / reception unit 220 may perform amplification, filtering, demodulation to a baseband signal, and the like on the radio frequency band signal received by the transmission / reception antenna 230.
  • the transmission / reception unit 220 (reception processing unit 2212) performs analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filter processing, demapping, demodulation, decoding (error correction) on the obtained baseband signal. Decoding may be included), reception processing such as MAC layer processing, RLC layer processing, and PDCP layer processing may be applied to acquire user data and the like.
  • the transmission / reception unit 220 may measure the received signal.
  • the measurement unit 223 may perform RRM measurement, CSI measurement, and the like based on the received signal.
  • the measurement unit 223 may measure received power (for example, RSRP), received quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), channel information (for example, CSI), and the like.
  • the measurement result may be output to the control unit 210.
  • the transmitting unit and the receiving unit of the user terminal 20 may be configured by at least one of the transmitting / receiving unit 220, the transmitting / receiving antenna 230, and the transmission line interface 240.
  • control unit 210 generates a HARQ-ACK codebook (at least one HARQ-ACK codebook) based on a plurality of downlink data (eg, PDSCH) having different communication requirements (eg, eMBB service, URLLC service). You may.
  • the transmission / reception unit 220 may transmit the HARQ-ACK codebook on one uplink channel resource (eg, PUCCH, PUSCH).
  • control unit 210 may determine the position of the HARQ-ACK information bit in the HARQ-ACK codebook based on communication requirements (service, MCS table, RNTI, etc.) corresponding to the HARQ-ACK information bit. Good (aspects 1 and 2).
  • control unit 210 may determine whether the HARQ-ACK information bits correspond to codebook group-based transmission (eg, CBG indicated by CBGTI) based on whether the HARQ-ACK information bits correspond to the HARQ-ACK in the HARQ-ACK codebook.
  • the position of the information bit may be determined (case 2 of modes 1 and 2).
  • control section 210 may continuously arrange HARQ-ACK information bits corresponding to the same communication requirement in the HARQ-ACK codebook (aspect 2-2-1).
  • control unit 210 continuously arranges HARQ-ACK information bits having the same or not corresponding to codebook group-based transmission (for example, CBG indicated by CBGTI) in the HARQ-ACK codebook. (Embodiment 2-2-2).
  • each functional block may be realized using one device physically or logically coupled, or directly or indirectly (for example, two or more devices physically or logically separated). , Wired, wireless, etc.), and may be implemented using these multiple devices.
  • the functional block may be realized by combining one device or the plurality of devices with software.
  • the functions include judgment, determination, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, and deemed. , Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
  • a functional block (configuration unit) that causes transmission to function may be referred to as a transmitting unit (transmitting unit), a transmitter (transmitter), or the like.
  • the realization method is not particularly limited.
  • a base station, a user terminal, or the like may function as a computer that performs processing of the wireless communication method according to the present disclosure.
  • FIG. 19 is a diagram illustrating an example of a hardware configuration of the base station and the user terminal according to the embodiment.
  • the above-described base station 10 and user terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. .
  • the hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of the devices illustrated in the drawing, or may be configured to exclude some of the devices.
  • processor 1001 may be implemented by one or more chips.
  • the functions of the base station 10 and the user terminal 20 are performed, for example, by reading predetermined software (program) on hardware such as the processor 1001 and the memory 1002 so that the processor 1001 performs an arithmetic operation and communicates via the communication device 1004. And controlling at least one of reading and writing of data in the memory 1002 and the storage 1003.
  • predetermined software program
  • the processor 1001 performs an arithmetic operation and communicates via the communication device 1004.
  • the processor 1001 controls the entire computer by operating an operating system, for example.
  • the processor 1001 may be configured by a central processing unit (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like.
  • CPU Central Processing Unit
  • the control unit 110 (210), the transmitting / receiving unit 120 (220), and the like may be realized by the processor 1001.
  • the processor 1001 reads out a program (program code), a software module, data, and the like from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to these.
  • a program program code
  • a program that causes a computer to execute at least a part of the operation described in the above embodiment is used.
  • the control unit 110 (210) may be realized by a control program stored in the memory 1002 and operated by the processor 1001, and other functional blocks may be similarly realized.
  • the memory 1002 is a computer-readable recording medium, for example, at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically EPROM), RAM (Random Access Memory), and other appropriate storage media. It may be constituted by one.
  • the memory 1002 may be called a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 can store a program (program code), a software module, and the like that can be executed to implement the wireless communication method according to an embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium such as a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (CD-ROM (Compact Disc) ROM, etc.), a digital versatile disc, At least one of a Blu-ray (registered trademark) disk, a removable disk, a hard disk drive, a smart card, a flash memory device (eg, a card, a stick, a key drive), a magnetic stripe, a database, a server, and other suitable storage media. May be configured.
  • the storage 1003 may be called an auxiliary storage device.
  • the communication device 1004 is hardware (transmission / reception device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like, for example, in order to realize at least one of frequency division duplex (FDD: Frequency Division Duplex) and time division duplex (TDD: Time Division Duplex). May be configured.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the transmission / reception unit 120 (220) and the transmission / reception antenna 130 (230) described above may be realized by the communication device 1004.
  • the transmission / reception unit 120 (220) may be physically or logically separated from the transmission unit 120a (220a) and the reception unit 120b (220b).
  • the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives an external input.
  • the output device 1006 is an output device that performs output to the outside (for example, a display, a speaker, an LED (Light Emitting Diode) lamp, and the like). Note that the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • the devices such as the processor 1001 and the memory 1002 are connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using a different bus for each device.
  • the base station 10 and the user terminal 20 include hardware such as a microprocessor, a digital signal processor (DSP: Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). It may be configured to include hardware, and some or all of the functional blocks may be realized using the hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • RS Reference Signal
  • a component carrier may be called a cell, a frequency carrier, a carrier frequency, or the like.
  • a radio frame may be configured by one or more periods (frames) in the time domain.
  • the one or more respective periods (frames) forming the radio frame may be referred to as a subframe.
  • a subframe may be configured by one or more slots in the time domain.
  • the subframe may be of a fixed length of time (eg, 1 ms) that does not depend on numerology.
  • the new melology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel.
  • Numerology includes, for example, subcarrier interval (SCS: SubCarrier @ Spacing), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI: Transmission @ Time @ Interval), number of symbols per TTI, radio frame configuration, transmission and reception.
  • SCS SubCarrier @ Spacing
  • TTI Transmission @ Time @ Interval
  • TTI Transmission @ Time @ Interval
  • radio frame configuration transmission and reception.
  • At least one of a specific filtering process performed by the transceiver in the frequency domain and a specific windowing process performed by the transceiver in the time domain may be indicated.
  • the slot may be configured by one or a plurality of symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain. Further, the slot may be a time unit based on numerology.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the slot may include a plurality of mini slots.
  • Each minislot may be constituted by one or more symbols in the time domain.
  • the mini-slot may be called a sub-slot.
  • a minislot may be made up of a smaller number of symbols than slots.
  • a PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (PUSCH) mapping type A.
  • a PDSCH (or PUSCH) transmitted using a minislot may be referred to as a PDSCH (PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots, and symbols all represent time units when transmitting signals.
  • the radio frame, the subframe, the slot, the minislot, and the symbol may have different names corresponding to each. Note that time units such as frames, subframes, slots, minislots, and symbols in the present disclosure may be interchanged with each other.
  • one subframe may be called a TTI
  • a plurality of consecutive subframes may be called a TTI
  • one slot or one minislot may be called a TTI. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in the existing LTE, a period shorter than 1 ms (for example, 1 to 13 symbols), or a period longer than 1 ms. It may be.
  • the unit representing the TTI may be called a slot, a minislot, or the like instead of a subframe.
  • the TTI refers to, for example, a minimum time unit of scheduling in wireless communication.
  • the base station performs scheduling for allocating radio resources (frequency bandwidth, transmission power, and the like that can be used in each user terminal) to each user terminal in TTI units.
  • radio resources frequency bandwidth, transmission power, and the like that can be used in each user terminal
  • the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, a time section (for example, the number of symbols) in which a transport block, a code block, a codeword, and the like are actually mapped may be shorter than the TTI.
  • one slot or one minislot is called a TTI
  • one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (mini-slot number) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in 3GPP@Rel.8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, and the like.
  • a TTI shorter than the normal TTI may be called a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.
  • a long TTI (for example, a normal TTI, a subframe, etc.) may be read as a TTI having a time length exceeding 1 ms, and a short TTI (for example, a shortened TTI, etc.) may be replaced with a TTI shorter than the long TTI and 1 ms.
  • the TTI having the above-mentioned TTI length may be read.
  • a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers (subcarriers) in the frequency domain.
  • the number of subcarriers included in the RB may be the same irrespective of the numerology, and may be, for example, 12.
  • the number of subcarriers included in the RB may be determined based on numerology.
  • the RB may include one or more symbols in the time domain, and may have a length of one slot, one minislot, one subframe, or one TTI.
  • One TTI, one subframe, and the like may each be configured by one or a plurality of resource blocks.
  • one or more RBs include a physical resource block (PRB: Physical @ RB), a subcarrier group (SCG: Sub-Carrier @ Group), a resource element group (REG: Resource @ Element @ Group), a PRB pair, an RB pair, and the like. May be called.
  • PRB Physical @ RB
  • SCG Sub-Carrier @ Group
  • REG Resource @ Element @ Group
  • PRB pair an RB pair, and the like. May be called.
  • a resource block may be composed of one or more resource elements (RE: Resource @ Element).
  • RE Resource @ Element
  • one RE may be a radio resource area of one subcarrier and one symbol.
  • a bandwidth part (which may be referred to as a partial bandwidth or the like) may also represent a subset of consecutive common RBs (common @ resource @ blocks) for a certain numerology in a certain carrier. Good.
  • the common RB may be specified by an index of the RB based on the common reference point of the carrier.
  • a PRB may be defined by a BWP and numbered within the BWP.
  • $ BWP may include a BWP for UL (UL @ BWP) and a BWP for DL (DL @ BWP).
  • BWP for a UE, one or more BWPs may be configured in one carrier.
  • At least one of the configured BWPs may be active, and the UE does not have to assume to transmit and receive a given signal / channel outside the active BWP.
  • “cell”, “carrier”, and the like in the present disclosure may be replaced with “BWP”.
  • the structures of the above-described radio frame, subframe, slot, minislot, symbol, and the like are merely examples.
  • the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, included in an RB The configuration of the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP: Cyclic @ Prefix) length, and the like can be variously changed.
  • the information, parameters, and the like described in the present disclosure may be expressed using an absolute value, may be expressed using a relative value from a predetermined value, or may be expressed using another corresponding information. May be represented.
  • a radio resource may be indicated by a predetermined index.
  • Names used for parameters and the like in the present disclosure are not limited in any respect. Further, the formulas and the like using these parameters may be different from those explicitly disclosed in the present disclosure.
  • the various channels (PUCCH (Physical Uplink Control Channel), PDCCH (Physical Downlink Control Channel), etc.) and information elements can be identified by any suitable name, so the various names assigned to these various channels and information elements Is not a limiting name in any way.
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that can be referred to throughout the above description are not limited to voltages, currents, electromagnetic waves, magnetic or magnetic particles, optical or photons, or any of these. May be represented by a combination of
  • information, signals, and the like can be output from the upper layer to at least one of the lower layer and the lower layer to the upper layer.
  • Information, signals, etc. may be input / output via a plurality of network nodes.
  • Information and signals input and output may be stored in a specific place (for example, a memory) or may be managed using a management table. Information and signals that are input and output can be overwritten, updated, or added. The output information, signal, and the like may be deleted. The input information, signal, and the like may be transmitted to another device.
  • information notification in the present disclosure includes physical layer signaling (for example, downlink control information (DCI: Downlink Control Information), uplink control information (UCI: Uplink Control Information)), and upper layer signaling (for example, RRC (Radio Resource Control). ) Signaling, broadcast information (master information block (MIB: Master Information Block), system information block (SIB: System Information Block), etc.), MAC (Medium Access Control) signaling), other signals or a combination thereof. Is also good.
  • DCI Downlink control information
  • UCI Uplink Control Information
  • RRC Radio Resource Control
  • MIB Master Information Block
  • SIB System Information Block
  • MAC Medium Access Control
  • the physical layer signaling may be called L1 / L2 (Layer 1 / Layer 2) control information (L1 / L2 control signal), L1 control information (L1 control signal), or the like.
  • the RRC signaling may be referred to as an RRC message, and may be, for example, an RRC connection setup (RRC Connection Setup) message, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, or the like.
  • the MAC signaling may be notified using, for example, a MAC control element (MAC @ CE (Control @ Element)).
  • the notification of the predetermined information is not limited to an explicit notification, and is implicit (for example, by not performing the notification of the predetermined information or by another information). May be performed).
  • the determination may be made by a value represented by 1 bit (0 or 1), or may be made by a boolean value represented by true or false. , May be performed by comparing numerical values (for example, comparison with a predetermined value).
  • software, instructions, information, and the like may be transmitted and received via a transmission medium.
  • a transmission medium For example, if the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.), the website, When transmitted from a server or other remote source, at least one of these wired and / or wireless technologies is included within the definition of a transmission medium.
  • Network may mean a device (eg, a base station) included in the network.
  • precoding In the present disclosure, “precoding”, “precoder”, “weight (precoding weight)”, “quasi-co-location (QCL)”, “TCI state (Transmission Configuration Indication state)”, “spatial relation” (Spatial relation), “spatial domain filter”, “transmission power”, “phase rotation”, “antenna port”, “antenna port group”, “layer”, “number of layers”, “ Terms such as “rank”, “resource”, “resource set”, “resource group”, “beam”, “beam width”, “beam angle”, “antenna”, “antenna element”, “panel” are interchangeable Can be used for
  • base station (BS: Base @ Station)”, “wireless base station”, “fixed station (fixed @ station)”, “NodeB”, “eNodeB (eNB)”, “gNodeB (gNB)”, “gNodeB (gNB)” "Access point (access @ point)”, “transmission point (TP: Transmission @ Point)”, “reception point (RP: Reception @ Point)”, “transmission / reception point (TRP: Transmission / Reception @ Point)”, “panel”, “cell” , “Sector”, “cell group”, “carrier”, “component carrier” and the like may be used interchangeably.
  • a base station may also be referred to as a macro cell, a small cell, a femto cell, a pico cell, or the like.
  • a base station can accommodate one or more (eg, three) cells. If the base station accommodates multiple cells, the entire coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (RRH: Communication services can also be provided by Remote Radio Head)).
  • a base station subsystem eg, a small indoor base station (RRH: Communication services can also be provided by Remote Radio Head).
  • RRH small indoor base station
  • the term “cell” or “sector” refers to part or all of the coverage area of at least one of a base station and a base station subsystem that provides communication services in this coverage.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • a mobile station is a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal. , Handset, user agent, mobile client, client or some other suitable terminology.
  • At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, or the like.
  • at least one of the base station and the mobile station may be a device mounted on the mobile unit, the mobile unit itself, or the like.
  • the moving object may be a vehicle (for example, a car, an airplane, or the like), may be an unmanned moving object (for example, a drone, an autonomous vehicle), or may be a robot (maned or unmanned). ).
  • at least one of the base station and the mobile station includes a device that does not necessarily move during a communication operation.
  • at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be replaced with a user terminal.
  • communication between a base station and a user terminal is replaced with communication between a plurality of user terminals (for example, may be called D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.).
  • D2D Device-to-Device
  • V2X Vehicle-to-Everything
  • Each aspect / embodiment of the present disclosure may be applied to the configuration.
  • the configuration may be such that the user terminal 20 has the function of the base station 10 described above.
  • words such as “up” and “down” may be read as words corresponding to communication between terminals (for example, “side”).
  • an uplink channel, a downlink channel, and the like may be replaced with a side channel.
  • a user terminal in the present disclosure may be replaced by a base station.
  • a configuration in which the base station 10 has the function of the user terminal 20 described above may be adopted.
  • the operation performed by the base station may be performed by an upper node (upper node) in some cases.
  • various operations performed for communication with a terminal include a base station, one or more network nodes other than the base station (eg, Obviously, it can be performed by MME (Mobility Management Entity), S-GW (Serving-Gateway) or the like, but not limited thereto, or a combination thereof.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • Each aspect / embodiment described in the present disclosure may be used alone, may be used in combination, or may be used by switching with execution.
  • the processing procedure, sequence, flowchart, and the like of each aspect / embodiment described in the present disclosure may be interchanged in order as long as there is no contradiction.
  • elements of various steps are presented in an exemplary order, and are not limited to the specific order presented.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • LTE-B Long Term Evolution-Beyond
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication
  • system 5G (5th generation mobile communication system)
  • FRA Fluture Radio Access
  • New-RAT Radio Access Technology
  • NR New Radio
  • NX New radio access
  • FX Fluture generation radio access
  • GSM Registered trademark
  • CDMA2000 Code Division Multiple Access
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • UWB Ultra-WideBand
  • Bluetooth registered trademark
  • a system using other appropriate wireless communication methods and a next-generation system extended based on these methods.
  • a plurality of systems may be combined (for example, a combination of LTE or LTE-A and 5G) and applied.
  • any reference to elements using designations such as "first,” “second,” etc., as used in this disclosure, does not generally limit the quantity or order of those elements. These designations may be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, reference to a first and second element does not mean that only two elements can be employed or that the first element must precede the second element in any way.
  • determining means judging, calculating, computing, processing, deriving, investigating, searching (upping, searching, inquiry) ( For example, a search in a table, database, or another data structure), ascertaining, etc., may be regarded as "deciding".
  • determining includes receiving (eg, receiving information), transmitting (eg, transmitting information), input (input), output (output), and access ( accessing) (e.g., accessing data in a memory) or the like.
  • judgment (decision) is regarded as “judgment (decision)” of resolving, selecting, selecting, establishing, comparing, etc. Is also good. That is, “judgment (decision)” may be regarded as “judgment (decision)” of any operation.
  • “judgment (decision)” may be read as “assuming”, “expecting”, “considering”, or the like.
  • the “maximum transmission power” described in the present disclosure may mean the maximum value of the transmission power, may mean the nominal maximum transmission power (the nominal UE maximum transmit power), or may refer to the rated maximum transmission power (the rated UE maximum transmit power).
  • connection refers to any direct or indirect connection or coupling between two or more elements. And may include the presence of one or more intermediate elements between two elements “connected” or “coupled” to each other.
  • the coupling or connection between the elements may be physical, logical, or a combination thereof. For example, “connection” may be read as “access”.
  • the radio frequency domain, microwave It can be considered to be “connected” or “coupled” to each other using electromagnetic energy having a wavelength in the region, light (both visible and invisible) regions, and the like.
  • the term “A and B are different” may mean that “A and B are different from each other”.
  • the term may mean that “A and B are different from C”.
  • Terms such as “separate”, “coupled” and the like may be interpreted similarly to "different”.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

L'invention concerne un terminal d'utilisateur comprenant : une unité de contrôle pour générer un livre-code d'accusé de réception de requête automatique de répétition hybride (HARQ-ACK) sur la base d'une pluralité de données de liaison descendante ayant des exigences de communication différentes ; et une unité de transmission pour transmettre le livre-code HARQ-ACK dans une ressource de canal de liaison montante. Selon un mode de réalisation de la présente invention, le livre-code HARQ-ACK peut être généré de manière appropriée même lorsqu'une pluralité d'HARQ-ACK a des instants de transmission identiques.
PCT/JP2018/036600 2018-09-28 2018-09-28 Terminal utilisateur, et procédé de communication sans fil WO2020066026A1 (fr)

Priority Applications (3)

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PCT/JP2018/036600 WO2020066026A1 (fr) 2018-09-28 2018-09-28 Terminal utilisateur, et procédé de communication sans fil
JP2020547890A JPWO2020066026A1 (ja) 2018-09-28 2018-09-28 ユーザ端末及び無線通信方法
JP2023117956A JP2023156318A (ja) 2018-09-28 2023-07-20 端末、無線通信方法及びシステム

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