WO2020029878A1 - Pucch发送方法、接收方法、终端及基站 - Google Patents

Pucch发送方法、接收方法、终端及基站 Download PDF

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Publication number
WO2020029878A1
WO2020029878A1 PCT/CN2019/099019 CN2019099019W WO2020029878A1 WO 2020029878 A1 WO2020029878 A1 WO 2020029878A1 CN 2019099019 W CN2019099019 W CN 2019099019W WO 2020029878 A1 WO2020029878 A1 WO 2020029878A1
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WIPO (PCT)
Prior art keywords
pri
downlink transmissions
pucch
downlink
pucch resource
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PCT/CN2019/099019
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English (en)
French (fr)
Inventor
高雪娟
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电信科学技术研究院有限公司
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Publication of WO2020029878A1 publication Critical patent/WO2020029878A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1893—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a physical uplink control channel (PUCCH) sending method, a receiving method, a terminal, and a base station.
  • PUCCH physical uplink control channel
  • the related technology only supports transmission of one PUCCH bearing Hybrid Automatic Repeat Request (AQnowledgement, HARQ-ACK) in one time slot. It is determined according to the feedback timing that multiple HARQ-ACKs that need to be transmitted in the same time slot are transmitted on the same PUCCH.
  • HARQ-ACK Hybrid Automatic Repeat Request
  • PDSCH physical downlink shared channels
  • SPS downlink semi-persistent Scheduling
  • the HARQ-ACK of the physical downlink control channel (Physical Downlink Control Channel, PDCCH) released by the resource is transmitted only on the same PUCCH, that is, the time division division multiplexing (TDM) of multiple times is not supported in this time slot.
  • PUCCH Physical Downlink Control Channel
  • the HARQ-ACK of the downstream transmission that is transmitted earlier in time needs to be transmitted in the same PUCCH as the HARQ-ACK of the subsequent downstream transmission, the time domain position of the transmission PUCCH needs to meet the last downstream transmission
  • the HARQ-ACK for the downstream transmission that is transmitted earlier must also be transmitted in the PUCCH at the later time domain position in the transmission HARQ-ACK slot determined according to the feedback timing, but in reality According to the processing delay of the downstream transmission that is earlier in time, its HARQ-ACK can be transmitted on the PUCCH that is earlier in time in this time slot, resulting in the HARQ-ACK of the downstream transmission that is earlier in time. Feedback delay increased.
  • the present disclosure provides a PUCCH sending method, a receiving method, a terminal, and a base station, in order to solve the related art transmission of a PUCCH carrying a HARQ-ACK, which easily results in the feedback delay of the HARQ-ACK transmitted earlier Added questions.
  • the present disclosure provides a PUCCH transmission method, which is applied to a terminal and includes:
  • the determining a PUCCH resource for transmitting the HARQ-ACK of the at least two downlink transmissions according to a PUCCH resource indicated by a PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions includes: :
  • the PUCCH resources for transmitting the HARQ-ACKs of the at least two downlink transmissions are determined.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resource is a PUCCH resource indicated by a PRI in a DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCHs corresponding to the at least two downlink transmissions, respectively.
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions: the PDCCH corresponding to the at least two downlink transmissions respectively
  • the PUCCH resources indicated by the PRI in the DCI used are the same;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCH corresponding to the at least two downlink transmissions:
  • the PUCCH resources indicated by the PRI are the same, or the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions are different, and there is overlap in the time domain.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resource indicated by the PRI in the DCI used by one PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the PDCCHs corresponding to multiple downlink transmissions belonging to the same group indicate the same or different PUCCH resources, and when different PUCCH resources are indicated, one of the PUCCH resources and at least one other PUCCH resource There is overlap in the time domain.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH in the at least two downlink transmissions are divided into different groups, and the downlink transmissions corresponding to each group of downlink transmissions are determined separately.
  • the PUCCH resource indicated by the PRI in the DCI used by the one or the last PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the respective PDCCHs corresponding to multiple downlink transmissions belonging to different groups indicate different PUCCH resources, and there is no overlap in time domain between the different PUCCH resources.
  • the downlink transmission includes any one or more of the following:
  • the PDCCH corresponding to the downlink transmission is: the PDCCH indicating the release of downlink SPS resources.
  • the time unit is any one of the following:
  • a PUCCH receiving method is also provided, which is applied to a base station and includes:
  • the determining a PUCCH resource for transmitting the HARQ-ACK of the at least two downlink transmissions according to a PUCCH resource indicated by a PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions includes: :
  • the PUCCH resources for transmitting the HARQ-ACKs of the at least two downlink transmissions are determined.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resource is a PUCCH resource indicated by a PRI in a DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions respectively;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCHs corresponding to the at least two downlink transmissions, respectively.
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions: the PDCCH corresponding to the at least two downlink transmissions respectively
  • the PUCCH resources indicated by the PRI in the DCI used are the same;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCH corresponding to the at least two downlink transmissions:
  • the PUCCH resources indicated by the PRI are the same, or the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions are different, and there is overlap in the time domain.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resource indicated by the PRI in the DCI used by one PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the PDCCHs corresponding to multiple downlink transmissions belonging to the same group indicate the same or different PUCCH resources, and when different PUCCH resources are indicated, one of the PUCCH resources and at least one other PUCCH resource There is overlap in the time domain.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH in the at least two downlink transmissions are divided into different groups, and the downlink transmissions corresponding to each group of downlink transmissions are determined separately.
  • the PUCCH resource indicated by the PRI in the DCI used by the one or the last PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the respective PDCCHs corresponding to multiple downlink transmissions belonging to different groups indicate different PUCCH resources, and there is no overlap in time domain between the different PUCCH resources.
  • the downlink transmission includes any one or more of the following:
  • the PDCCH corresponding to the downlink transmission is: the PDCCH indicating the release of downlink SPS resources.
  • the time unit is any one of the following:
  • a terminal including:
  • a receiving module configured to receive at least two downlink transmissions, where the HARQ-ACKs of the at least two downlink transmissions are transmitted in a same time unit;
  • a determining module further configured to determine a PUCCH resource for transmitting the HARQ-ACK of the at least two downlink transmissions according to a PUCCH resource indicated by a PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions;
  • the sending module is further configured to send a corresponding downlink transmission HARQ-ACK on the determined PUCCH resource.
  • the determining module is specifically configured to:
  • the PUCCH resources for transmitting the HARQ-ACKs of the at least two downlink transmissions are determined.
  • the determining module is specifically configured to:
  • the PUCCH resource is a PUCCH resource indicated by a PRI in a DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions respectively;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCHs corresponding to the at least two downlink transmissions, respectively.
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions: the PDCCH corresponding to the at least two downlink transmissions respectively
  • the PUCCH resources indicated by the PRI in the DCI used are the same;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCH corresponding to the at least two downlink transmissions:
  • the PUCCH resources indicated by the PRI are the same, or the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions are different, and there is overlap in the time domain.
  • the determining module is specifically configured to:
  • the determining module is specifically configured to:
  • the PUCCH resource indicated by the PRI in the DCI used by one PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the PDCCHs corresponding to multiple downlink transmissions belonging to the same group indicate the same or different PUCCH resources, and when different PUCCH resources are indicated, one of the PUCCH resources and at least one other PUCCH resource There is overlap in the time domain.
  • the determining module is specifically configured to:
  • the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH in the at least two downlink transmissions are divided into different groups, and the downlink transmissions corresponding to each group of downlink transmissions are determined separately.
  • the PUCCH resource indicated by the PRI in the DCI used by the one or the last PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the respective PDCCHs corresponding to multiple downlink transmissions belonging to different groups indicate different PUCCH resources, and there is no overlap in time domain between the different PUCCH resources.
  • the downlink transmission includes any one or more of the following:
  • the PDCCH corresponding to the downlink transmission is: the PDCCH indicating the release of downlink SPS resources.
  • the time unit is any one of the following:
  • a base station including:
  • a sending module configured to send at least two downlink transmissions, where the HARQ-ACKs of the at least two downlink transmissions are transmitted in a same time unit;
  • a determining module configured to determine a PUCCH resource for transmitting the HARQ-ACK of the at least two downlink transmissions according to a PUCCH resource indicated by a PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions;
  • a receiving module configured to receive a corresponding downlink transmission HARQ-ACK on the determined PUCCH resource.
  • the determining module is specifically configured to:
  • the PUCCH resources for transmitting the HARQ-ACKs of the at least two downlink transmissions are determined.
  • the determining module is specifically configured to:
  • the PUCCH resource is a PUCCH resource indicated by a PRI in a DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions respectively;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCHs corresponding to the at least two downlink transmissions, respectively.
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions: the PDCCH corresponding to the at least two downlink transmissions respectively
  • the PUCCH resources indicated by the PRI in the DCI used are the same;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCH corresponding to the at least two downlink transmissions:
  • the PUCCH resources indicated by the PRI are the same, or the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions are different, and there is overlap in the time domain.
  • the determining module is specifically configured to:
  • the determining module is specifically configured to:
  • the PUCCH resource indicated by the PRI in the DCI used by one PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the PDCCHs corresponding to multiple downlink transmissions belonging to the same group indicate the same or different PUCCH resources, and when different PUCCH resources are indicated, one of the PUCCH resources and at least one other PUCCH resource There is overlap in the time domain.
  • the determining module is specifically configured to:
  • the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH in the at least two downlink transmissions are divided into different groups, and the downlink transmissions corresponding to each group of downlink transmissions are determined separately.
  • the PUCCH resource indicated by the PRI in the DCI used by the one or the last PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the respective PDCCHs corresponding to multiple downlink transmissions belonging to different groups indicate different PUCCH resources, and there is no overlap in time domain between the different PUCCH resources.
  • the downlink transmission includes any one or more of the following:
  • the PDCCH corresponding to the downlink transmission is: the PDCCH indicating the release of downlink SPS resources.
  • the time unit is any one of the following:
  • a terminal including: a processor, a memory, and a program stored on the memory and executable on the processor, and the PUCCH transmission is implemented when the program is executed by the processor.
  • a base station including: a processor, a memory, and a program stored on the memory and executable on the processor, and the PUCCH reception is implemented when the program is executed by the processor.
  • a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the PUCCH sending method are implemented; or When the computer program is executed by the processor, the steps in the PUCCH receiving method described above are implemented.
  • At least two downlink transmissions are received, and the HARQ-ACKs of the at least two downlink transmissions are transmitted in the same time unit; according to the downlink control used by the PDCCH corresponding to the at least two downlink transmissions, respectively.
  • the PUCCH resources indicated by the PRI in the information DCI determine the PUCCH resources used to transmit the at least two HARQ-ACKs for downlink transmission; and send the corresponding downlink HARQ-ACKs on the determined PUCCH resources, which can achieve fast HARQ-ACK feedback reduces HARQ-ACK feedback delay.
  • FIG. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a PUCCH sending method according to an embodiment of the present disclosure
  • FIG. 3 is one of PUCCH transmission schematic diagrams provided by an embodiment of the present disclosure.
  • FIG. 4 is a second schematic diagram of PUCCH transmission provided by an embodiment of the present disclosure.
  • FIG. 5 is a third schematic diagram of PUCCH transmission provided by an embodiment of the present disclosure.
  • FIG. 6 is a fourth schematic diagram of PUCCH transmission according to an embodiment of the present disclosure.
  • FIG. 7 is a fifth schematic diagram of PUCCH transmission according to an embodiment of the present disclosure.
  • FIG. 8 is a sixth schematic diagram of PUCCH transmission according to an embodiment of the present disclosure.
  • FIG. 9 is a flowchart of a PUCCH receiving method according to an embodiment of the present disclosure.
  • FIG. 10 is one of the schematic diagrams of a terminal provided by an embodiment of the present disclosure.
  • FIG. 11 is one of the schematic diagrams of a base station according to an embodiment of the present disclosure.
  • FIG. 12 is a second schematic diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 13 is a second schematic diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 14 is a third schematic diagram of a terminal provided by an embodiment of the present disclosure.
  • FIG. 15 is a fourth schematic diagram of a base station according to an embodiment of the present disclosure.
  • words such as “exemplary” or “for example” are used as examples, illustrations or illustrations. Any embodiment or design described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as more preferred or advantageous over other embodiments or designs. Rather, the use of the words “exemplary” or “for example” is intended to present the relevant concept in a concrete manner.
  • LTE Long Time Evolution
  • LTE-A LTE-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Single-carrier Frequency-Division Multiple Access
  • system and “network” are often used interchangeably.
  • the CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA) and the like.
  • UTRA includes Wideband CDMA (Wideband Code Division Multiple Access) and other CDMA variants.
  • the TDMA system can implement a radio technology such as Global System for Mobile (Communication, Global System for Mobile).
  • OFDMA system can implement such as Ultra Mobile Broadband (UMB), Evolution-UTRA (Evolution-UTRA, E-UTRA), IEEE802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM And other radio technologies.
  • UMB Ultra Mobile Broadband
  • Evolution-UTRA Evolution-UTRA
  • E-UTRA Evolution-UTRA
  • IEEE802.11 Wi-Fi
  • IEEE 802.16 WiMAX
  • IEEE 802.20 Flash-OFDM And other radio technologies.
  • UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS).
  • LTE and more advanced LTE (such as LTE-A) are new UMTS versions using E-UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3rd Generation Generation Partnership Project (3GPP)).
  • CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
  • the techniques described herein can be used for both the systems and radio technologies mentioned above as well as other systems and radio technologies.
  • New RAT new wireless communication systems
  • 5G NR fifth generation wireless communication system
  • PUCCH formats 0 and 2 occupy only 1 or 2 symbols in the time domain. They can be called short PUCCH formats and can be used for HARQ sensitive services.
  • -ACK feedback to reduce feedback delay. Since PUCCH format 1/3/4 occupies 4 to 14 symbols in the time domain, it can be called a long PUCCH format, which can achieve a compromise between delay and uplink coverage.
  • the above symbols are orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols or single-carrier frequency-division multiple access (SC-FDMA) symbols or discrete Fourier transform spreading positive Discrete, Fourier, Transform-spread, Orthogonal, Frequency, Division, Multiplexing (DFT-s-OFDM) symbols.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA single-carrier frequency-division multiple access
  • DFT-s-OFDM discrete Fourier transform spreading positive Discrete, Fourier, Transform-spread, Orthogonal, Frequency, Division, Multiplexing
  • the HARQ-ACK may determine a time domain position (including a time slot and a symbol position in a time slot) of transmission according to a feedback timing (dynamic feedback timing or fixed feedback timing).
  • the so-called feedback timing may refer to a time interval between the end position of the HARQ-ACK feedback downlink transmission and the start position of the HARQ-ACK transmission.
  • this feedback timing is defined by using a slot as a unit, which is represented by a value of K1, which expresses the time slot where the downlink transmission requiring HARQ-ACK feedback is located to where the HARQ-ACK transmission is located. Time slot interval between time slots.
  • the dynamic feedback timing is an indication field indicating the K1 value in the downlink control information (Downlink Control Information) used to schedule the PDCCH for downlink transmission.
  • the fixed feedback timing is to configure a K1 value for high-level signaling.
  • the time slot where the HARQ-ACK feedback is located is determined based on the end position of the downlink transmission.
  • the time slot for the HARQ-ACK feedback is also dynamic. changed.
  • the specific symbol positions of the PUCCH carrying the HARQ-ACK are based on the PUCCH Resource Indication (PRI) in the DCI.
  • PRI PUCCH Resource Indication
  • the NR supports two types of HARQ-ACK codebooks (semi-static HARQ-ACK codebooks and dynamic HARQ-ACK codebooks).
  • the semi-static codebook determines the size of the semi-static codebook in the time slot according to the K1 set corresponding to a time slot and the time domain resource allocation position of possible downlink transmission in each time slot.
  • the dynamic HARQ-ACK codebook determines the possible downlink transmission positions according to the K1 set corresponding to a time slot. Based on these downlink transmission positions and the downlink scheduling timing set (K0), the possible monitoring occasion monitoring set of transmission PDCCH is determined.
  • the Downlink Assignment Index (DAI) field included in the DCI used by the PDCCH detected in the PDCCH monitoring occasion determines the size and ordering of the codebook.
  • DAI Downlink Assignment Index
  • DAI includes counter DAI (Counter-DAI, C-DAI) and total DAI (Total-DAI, T-DAI), where C-DAI is used to sort the HARQ-ACK of different downlink transmissions (that is, to indicate the current downlink transmission Time-domain and frequency-domain positions, the cumulative number of scheduled downlink transmissions), T-DAI is used to indicate the size of the codebook (that is, the total number of downlink transmissions scheduled to the current time-domain location).
  • C-DAI Counter-DAI, C-DAI
  • Total-DAI Total-DAI
  • C-DAI is used to sort the HARQ-ACK of different downlink transmissions (that is, to indicate the current downlink transmission Time-domain and frequency-domain positions, the cumulative number of scheduled downlink transmissions)
  • T-DAI is used to indicate the size of the codebook (that is, the total number of downlink transmissions scheduled to the current time-domain location).
  • the base station can avoid PUCCH resource conflicts by changing the PRI and perform more flexible PUCCH resource allocation.
  • the dynamic codebook since the base station cannot predict the subsequent scheduling situation in the PDCCH sent earlier, it cannot indicate a final PUCCH resource through the PRI in the previously sent PDCCH. Therefore, for two codebooks, the PRI in the DCI used by the PDCCH corresponding to the multiple downlink transmissions included in the codebook can be changed one by one to ensure that all HARQ-ACKs can be transmitted in one PUCCH.
  • the transmission mechanism in the related art cannot distinguish whether multiple HARQ-ACKs transmitted in the downlink correspond to the same PUCCH.
  • FIG. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present disclosure.
  • the wireless communication system may include: a base station 10 and a terminal 11, and the terminal 11 may communicate with the base station 10 (Transmit signaling or transmit data).
  • the connection between the base station 10 and the terminal 11 may be a wireless connection.
  • a solid line is used in FIG. 1 for illustration.
  • the above-mentioned communication system may include multiple terminals 11, and the base station 10 may communicate with multiple terminals 11.
  • the base station 10 in the above communication system may be a commonly used base station, an evolved base station (eNB), or a network device in a 5G system (for example, a next generation base station ( next generation node (base station, gNB) or transmission and reception point (TRP)).
  • eNB evolved base station
  • gNB next generation node
  • TRP transmission and reception point
  • the terminal 11 provided in the embodiment of the present disclosure may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA).
  • UMPC Ultra-Mobile Personal Computer
  • PDA Personal Digital Assistant
  • FIG. 2 is a flowchart of a PUCCH sending method according to an embodiment of the present disclosure.
  • the PUCCH sending method is executed by a terminal, and the specific steps are as follows:
  • Step 201 Receive at least two downlink transmissions, and the HARQ-ACKs of the at least two downlink transmissions are transmitted in a same time unit.
  • Step 202 Determine a PUCCH resource for transmitting the HARQ-ACKs of the at least two downlink transmissions according to the PUCCH resources indicated by the PRI in the DCI used by the PDCCHs corresponding to the at least two downlink transmissions, respectively.
  • Step 203 Send the corresponding downlink transmission HARQ-ACK on the determined PUCCH resource.
  • the terminal when the terminal receives at least two downlink transmissions, it can determine whether the HARQ-ACKs of the at least two downlink transmissions are transmitted in the same time unit. Specifically, according to the at least two downlink transmissions, To determine the HARQ-ACK feedback timing, which is indicated by the HARQ-ACK feedback timing indication field in the PDCCH corresponding to the downlink transmission or configured by higher-layer signaling.
  • the at least two downlink transmissions may be sent by the base station to the terminal, and the terminal receives at least two downlink transmissions sent by the base station.
  • the terminal determines, according to the PUCCH resource indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions, respectively Transmitting the PUCCH resources of the at least two downlink transmitted HARQ-ACKs, and sending the corresponding downlink transmitted HARQ-ACKs on the determined PUCCH resources.
  • the terminal may determine a PUCCH resource used to transmit the HARQ-ACK of the at least two downlink transmissions according to an overlap of a PUCCH resource indicated by a PRI in a DCI used by the PDCCH corresponding to the at least two downlink transmissions.
  • At least one PUCCH resource set may be pre-configured for the terminal, for example, high-level signaling is pre-configured for the terminal.
  • different PUCCH resource sets correspond to different UCI transmission bit ranges.
  • the first PUCCH resource set corresponds to 1 to 2-bit UCI transmission
  • the second PUCCH resource set corresponds to 3 to N1 bit UCI.
  • the third PUCCH resource set corresponds to N1 + 1 to N2 bit UCI transmission, and so on; if only one PUCCH resource set is configured, it is usually the first PUCCH resource set, that is, the set corresponding to 1 to 2 bit UCI transmission;
  • Each PUCCH resource set includes multiple PUCCH resources, and the PRI in the DCI used by the PDCCH may be used to indicate one of the resources; the terminal selects a PUCCH resource set from the at least one PUCCH resource set, and then The PRIs in the DCI used for the PDCCH corresponding to the three downlink transmissions are the PUCCH resources corresponding to the downlink transmission in the selected PUCCH resource set.
  • the terminal When high-level signaling configures only one PUCCH resource set for the terminal, the terminal directly selects the one PUCCH resource set; when high-level signaling configures at least two PUCCH resource sets for the terminal, the terminal performs transmission according to downlink For the number of feedback bits of HARQ-ACK, one PUCCH resource set is selected from the at least two PUCCH resource sets.
  • the determining a PUCCH resource for transmitting the HARQ-ACK of the at least two downlink transmissions according to a PUCCH resource indicated by a PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions includes: :
  • the PUCCH resources for transmitting the HARQ-ACKs of the at least two downlink transmissions are determined.
  • the terminal may determine that when the PUCCH resources indicated by the PRI in the DCI used by the at least two downlink transmissions overlap, the HARQ-ACKs of the at least two downlink transmissions are determined. Transmit on the same PUCCH resource; when there is no overlap in the time domain between the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions, determine the HARQ-ACK of the at least two downlink transmissions Transmit on PUCCH resources that do not overlap each other in the time domain.
  • the terminal may also group the at least two downlink transmissions according to whether the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions overlap, and then determine Transmission of PUCCH resources for each group of downlink transmission HARQ-ACK. For example, the terminal may use the at least two downlink transmissions as a group of downlink transmissions where the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH overlap in the time domain; the at least two In the downlink transmission, the downlink transmission in which the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH do not overlap in the time domain is divided into different groups.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resource is a PUCCH resource indicated by a PRI in a DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions respectively;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCHs corresponding to the at least two downlink transmissions, respectively.
  • the PUCCH resource may be a PUCCH resource indicated by a PRI in the DCI used by any one PDCCH among the PDCCH corresponding to the at least two downlink transmissions, or may be a PDCCH corresponding to the at least two downlink transmissions.
  • the PUCCH resource indicated by the PRI in the DCI used by one PDCCH may be a PUCCH resource indicated by the PRI in the DCI used by one PDCCH.
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions: the PDCCH corresponding to the at least two downlink transmissions respectively
  • the PUCCH resources indicated by the PRI in the DCI used are the same;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCH corresponding to the at least two downlink transmissions:
  • the PUCCH resources indicated by the PRI are the same, or the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions are different, and there is overlap in the time domain.
  • the PUCCH resource is the PUCCH resource indicated by the PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions
  • the PUCCH indicated by the PRI in the DCI used by the PDCCH is the PUCCH resource indicated by the PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions
  • the PUCCH indicated by the PRI in the DCI used by the PDCCH is the same.
  • the PUCCH resource is a PUCCH resource indicated by the PRI in the DCI used by the last PDCCH in the PDCCH corresponding to the at least two downlink transmissions
  • the PUCCH resource indicated by the PRI in the DCI used by the PDCCH exists in the time domain
  • the overlap includes that the PUCCH resources indicated by the PRI in the DCI used by the PDCCH are the same, or the PUCCH resources indicated by the PRI in the DCI used by the PDCCH are different and there is overlap in the time domain.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resource indicated by the PRI in the DCI used by one PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • all PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to all downlink transmissions in the same group may include the same overlapping area, that is, the PRI indicated by the PRI in the DCI used by each PDCCH corresponding to the downlink transmission.
  • the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to all downlink transmissions in the same group may not include the same overlapping area, but there is a correlation overlap, that is, the PRI in the DCI used by the corresponding PDCCH for each downlink transmission.
  • the indicated PUCCH resource overlaps with the PUCCH resource indicated by the PRI in the DCI used by the PDCCH corresponding to at least one downlink transmission in the group.
  • the PUCCH resource indicated by the PRI in the DCI used by the PDCCH corresponding to the downlink transmission 1 overlaps with the PUCCH resource indicated by the PRI in the DCI used by the PDCCH corresponding to the downlink transmission 2.
  • the PUCCH resource indicated by the PRI in the DCI used by the downlink transmission 2 overlaps.
  • the downlink Transmission 4 Downlink transmissions 1, 2, and 3 belong to different groups, and HARQ-ACK feedback is performed on different PUCCHs.
  • the PRIs in the DCIs used by the PDCCHs corresponding to multiple downlink transmissions belonging to the same group indicate the same or different PUCCH resources, and when different PUCCH resources are indicated, one of the PUCCH resources and at least one other PUCCH resource There is overlap in the time domain.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH in the at least two downlink transmissions are divided into different groups, and the downlink transmissions corresponding to each group of downlink transmissions are determined separately.
  • the PUCCH resource indicated by the PRI in the DCI used by the one or the last PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the terminal divides the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH in the at least two downlink transmissions into downlink transmissions that do not overlap in the time domain, and each group is divided into different groups.
  • the PUCCH resources of the group of downlink transmission HARQ-ACKs are transmitted.
  • the PRIs in the DCIs used by the respective PDCCHs corresponding to multiple downlink transmissions belonging to different groups indicate different PUCCH resources, and there is no overlap in time domain between the different PUCCH resources.
  • the number of downlink transmissions included in different sets of downlink transmissions may be the same or different.
  • the terminal selects one PUCCH resource set from the at least two PUCCH resource sets according to the number of HARQ-ACK feedback bits of each group of downlink transmissions, for example When the number of feedback bits for a group of downlink transmission HARQ-ACKs is 1 to 2 bits, the first set of PUCCH resource sets including resources of PUCCH format 0 or 1 is selected.
  • the terminal may determine the number of HARQ-ACK feedback bits according to the transmission mode of the downlink transmission.
  • each downlink transmission corresponds to 1-bit HARQ-ACK feedback, and 2 downlink transmissions correspond to 2-bit HARQ-ACK feedback; if the downlink transmission uses CBG-based transmission and / or multi-codeword transmission, each downlink transmission corresponds to more than 1-bit HARQ-ACK feedback, 2 downlink transmissions correspond to more than 2-bit HARQ-ACK feedback; of course, if each group contains more than 2 downlink transmissions, whether there is CBG or not and whether multi-codeword transmission is used, there are more than 2 bit HARQ-ACK feedback.
  • CBG Code Block Group
  • the downlink transmission includes any one or more of the following:
  • PDCCH also referred to as SPS PDSCH release
  • SPS PDSCH release downlink SPS resource release
  • the downlink transmission may be a PDSCH or a PDCCH indicating the release of downlink SPS resources.
  • the at least two downlink transmissions may include a PDSCH and / or a PDCCH indicating the release of downlink SPS resources, that is, the at least two downlink transmissions may include only the PDSCH, or only the PDCCH indicating the release of downlink SPS resources, and may also include a PDSCH.
  • a PDCCH indicating downlink SPS resource release may be a PDSCH or a PDCCH indicating the release of downlink SPS resources.
  • the PDCCH corresponding to the downlink transmission is: the PDCCH indicating the release of downlink SPS resources.
  • the PDCCH corresponding to the downlink transmission is the PDCCH itself indicating the release of downlink SPS resources.
  • the time unit is any one of the following:
  • time unit is not excluded to define the time unit as other length, such as N symbols.
  • the PUCCH sending method determines whether multiple downlink transmission HARQ-ACKs are in the same PUCCH in one slot according to whether the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the downlink transmission overlap. It can flexibly support the transmission of HARQ-ACK feedback information of different downlink transmissions through multiple non-overlapping PUCCHs in one slot, which can achieve fast HARQ-ACK feedback, reduce HARQ-ACK feedback delay, and improve System transmission efficiency.
  • the PUCCH transmission method provided by the present disclosure will be described in detail in the following with specific examples. It should be noted that the following examples are exemplified as the downlink transmission in the PDSCH as an example, but not limited to this. The same applies to the downlink transmission as an indication of the downlink. A case of a PDCCH released by an SPS resource, and a case of downlink transmission including a PDSCH and a PDCCH indicating release of a downlink SPS resource.
  • each PUCCH resource set includes 8 PUCCH resources, and a 3-bit PRI can be used in the DCI used by the PDCCH to indicate one of the 8 PUCCH resources.
  • PRI PRI and 8 PUCCH resources
  • PRI PUCCH resources '000' The first PUCCH resource in the PUCCH resource set '001' The second PUCCH resource in the PUCCH resource set '010' The third PUCCH resource in the PUCCH resource set '011' The fourth PUCCH resource in the PUCCH resource set '100' The fifth PUCCH resource in the PUCCH resource set '101' The sixth PUCCH resource in the PUCCH resource set '110' The seventh PUCCH resource in the PUCCH resource set '111' The eighth PUCCH resource in the PUCCH resource set
  • the terminal receives the PDSCH transmission described above, and determines, based on the PUCCH resource indicated by the PRI in the DCI used by the PDCCH corresponding to each PDSCH, that the PUCCH resource indicated by the PRI in the DCI used by the PDCCH corresponding to each PDSCH is in the time domain. It does not overlap with each other, and it can be determined that each PDSCH is a group of downlink transmissions for HARQ-ACK feedback, and the terminal separately determines PUCCH resources for transmitting HARQ-ACK for each group of PDSCH, and performs HARQ-ACK transmission on the corresponding PUCCH resources. Specifically, the terminal may send the HARQ-ACK of the PDSCH on the PUCCH resource indicated by the PRI in the DCI used by the PDCCH corresponding to each PDSCH.
  • the PUCCH resources 301, 302, 303, and 304 are the PUCCH indicated by the PRI in the DCI used for the PDCCH corresponding to the PDSCH transmitted on the time slots n, n + 1, n + 2, and n + 3, respectively.
  • the terminal can send the HARQ-ACK of the PDSCH transmitted on the slot n on the PUCCH resource 301, the HARQ-ACK of the PDSCH transmitted on the slot n + 1 on the PUCCH resource 302, and the PUCCH resource 303 on the PUCCH resource 303 HARQ-ACK of PDSCH transmitted on time slot n + 2, and HARQ-ACK of PDSCH transmitted on time slot n + 3 on PUCCH resource 304.
  • the base station determines a PUCCH resource for transmitting HARQ-ACK according to the same manner as described above, and receives a corresponding HARQ-ACK on the determined PUCCH resource.
  • the terminal Before the PUCCH resource is determined according to the PRI, the terminal needs to select a PUCCH resource set from the at least one PUCCH resource set, and then determines the PUCCH resource set in the selected PUCCH resource set according to the PRI in the DCI used by each downlink transmission corresponding PDCCH. PUCCH resources for transmitting each downlink transmitted HARQ-ACK.
  • the terminal directly selects the one PUCCH resource set; when high-level signaling configures at least two PUCCH resource sets for the terminal, the terminal determines The number of feedback bits of the transmitted HARQ-ACK is one PUCCH resource set selected from the at least two PUCCH resource sets.
  • the terminal may determine the number of HARQ-ACK feedback bits according to the PDSCH transmission mode. For example, if the PDSCH does not use CBG-based transmission, each PDSCH corresponds to 1 to 2 bits of HARQ-ACK feedback, and the first PUCCH is selected. Resource collection.
  • each PDSCH may exceed 2 bits of HARQ-ACK feedback, and a PUCCH resource set needs to be selected according to the number of HARQ-ACK feedback bits corresponding to each group of PDSCH.
  • the base station may determine a PUCCH resource set according to the same manner as described above, and determine a PUCCH resource for receiving HARQ-ACK in the selected PUCCH resource set.
  • each PDSCH will also correspond to a DAI value.
  • a DAI value When a single carrier is used, it is only C-DAI, because it is one-to-one feedback (that is, a PDSCH performs HARQ-ACK feedback separately), then the C-DAI value Always 1; if semi-static codebook is used, the DAI value exists only when the PDSCH is scheduled by fallback DCI, and the DAI value does not exist in other cases.
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH may be set by the base station according to the expected transmission mode.
  • the base station may also set the DAI value according to the expected transmission mode. For example, when the base station wants to divide each PDSCH into a group and place its HARQ-ACK feedback on a separate PUCCH for transmission, the PRI in the DCI used by the PDCCH corresponding to the PDSCH can be set as shown in FIG. 3. Before setting the PRI, the base station also needs to select a PUCCH resource set from at least one PUCCH resource set configured for the terminal, and then perform a PRI indication in the selected PUCCH resource set.
  • the base station may select a PUCCH resource set in the same manner as the terminal selects the PUCCH resource set, and details are not described again. That is, the resource indicated by the PRI is the resource in the selected PUCCH resource set. In this way, when the terminal and the base station select the PUCCH resource set according to the same rule, the understanding of the PUCCH resource set is consistent, so as to ensure the understanding of the resource indicated by the PRI. Consistent.
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n + 3 is "011” or "111” (the PUCCH resource indicated by the PRI is "111” and the PUCCH resource indicated by the PRI "011” exists Overlap); where the PUCCH resources indicated by the PRI is "000” or "001” and the PUCCH resources indicated when the PRI is "011” or “111” do not overlap each other in the
  • the terminal receives the PDSCH transmission, and according to the PUCCH resource indicated by the PRI in the DCI used by the PDCCH corresponding to each PDSCH, there is an overlap in the time domain between the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH.
  • the PDSCH is divided into a group, and the PDSCHs that do not overlap in the time domain between the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH are divided into different groups, that is, the PDSCH to be transmitted in time slot n and the time slot in time slot n
  • the PDSCH transmitted in n + 1 is divided into one group, and the PDSCH transmitted in time slot n + 2 and the PDSCH transmitted in time slot n + 3 are divided into one group. Then HARQ-ACK feedback is performed separately for each group.
  • the PRI in the DCI used for the PDCCH corresponding to the PDSCH transmitted in time slot n + 1 shown in FIG. 4 is “001”, and the PDCCH corresponding to the PDSCH transmitted in time slot n + 3.
  • the PRI in the DCI used is "111".
  • the PUCCH resources 401, 402, 403, and 404 are the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted on time slots n, n + 1, n + 2, and n + 3, respectively.
  • the base station determines a PUCCH resource for transmitting HARQ-ACK according to the same manner as described above, and receives a corresponding HARQ-ACK on the determined PUCCH resource.
  • the terminal Before the PUCCH resource is determined according to the PRI, the terminal needs to select a PUCCH resource set from the at least one PUCCH resource set, and then determines the PUCCH resource set in the selected PUCCH resource set according to the PRI in the DCI used by each downlink transmission corresponding PDCCH. PUCCH resources for transmitting each downlink transmitted HARQ-ACK. If the PDSCH does not use CBG-based transmission and is a single codeword, each PDSCH corresponds to 1-bit HARQ-ACK feedback, each group of PDSCH corresponds to 2-bit HARQ-ACK feedback, and the first PUCCH resource set is selected.
  • each PDSCH may exceed 1-bit HARQ-ACK feedback for each PDSCH, and each group of PDSCH may exceed 2-bit HARQ-ACK feedback.
  • a PUCCH resource set is selected according to the number of HARQ-ACK feedback bits corresponding to each group of PDSCH.
  • each PDSCH is sorted according to the corresponding DAI value (the actual PDSCH transmission order needs to be determined according to the transmission time domain position and scheduling timing of the PDCCH scheduling it, which may not be the order in Figure 4, However, the HARQ-ACK feedback is sorted according to DAI. For convenience, the PDSCH is sorted in the order of DAI in this embodiment.)
  • the C-DAI corresponding to the PDSCH in each group is sequentially increased. Because it is a single carrier, the last A C-DAI is equivalent to T-DAI, that is, it expresses the total number of PDSCHs scheduled in the group.
  • C-DAI it is possible to perform HARQ-ACK ordering within a group and determine the number of HARQ-ACK bits corresponding to a group of PDSCH. , So as to transmit on the corresponding PUCCH resources according to the generated HARQ-ACK; if semi-static codebook transmission is used, the DAI value exists only when the PDSCH is scheduled by fallback DCI, and the DAI value does not exist in other cases.
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH may be set by the base station according to the expected transmission mode.
  • the base station may also set the DAI value according to the expected transmission mode. For example, when the base station wants to transmit the PDSCH transmitted in slot n and the PDSCH transmitted in slot n + 1 into a group, the PDSCH transmitted in slot n + 2 and the PDSCH transmitted in slot n + 3 The PDSCH is divided into a group, and the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n and the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n + 1 can be set.
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n can be set to "000", and the PDCCH corresponding to the PDSCH transmitted in slot n + 1 can be set.
  • the DCI used in the DCI is set to “000” or “001” (the PUCCH resource indicated by the PRI is “001” overlaps with the PUCCH resource indicated by the PRI of “000”);
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH and the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in time slot n + 3 are set to indicate that there are overlapping PUCCH resources, and it is guaranteed to be in time slots n and n
  • the PRI in the DCI used by the corresponding PDCCH is set to indicate that there are no overlapping PUCCH resources.
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n + 2 is set to "011".
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n + 3 is set to "011” or "111" (the PUCCH resource indicated by the PRI is "111" overlaps with the PUCCH resource indicated by the PRI "011” And the PUCCH resources indicated by the PRI "111” and "011” do not overlap with the PUCCH resources indicated by the PRI "000” and "001").
  • the base station can flexibly change the PUCCH resources corresponding to a group of PDSCH when setting the PRI. For example, the base station determines in the time slot n + 1 that the resource corresponding to "000" has been occupied by other terminals, and then may change the first group of PDSCHs to perform HARQ-ACK feedback on the PUCCH resource corresponding to "001". Before setting the PRI, the base station needs to select a PUCCH resource set from at least one PUCCH resource set configured for the terminal, and then perform a PRI indication in the selected PUCCH resource set.
  • the base station may select a PUCCH resource set in the same manner as the terminal selects the PUCCH resource set, and details are not described again. That is, the resource indicated by the PRI is the resource in the selected PUCCH resource set. In this way, when the terminal and the base station select the PUCCH resource set according to the same rule, the understanding of the PUCCH resource set is consistent, so as to ensure the understanding of the resource indicated by the PRI. Consistent.
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n is “000”; the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n + 1 is “001” (PRI The PUCCH resource indicated by "001” overlaps with the PUCCH resource indicated by PRI of "000”); the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n + 2 is "010" (the PRI is " The PUCCH resource indicated by "010” overlaps with the PUCCH resource indicated by PRI of "001”); the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n + 3 is “111” (the PRI is "111” (The PUCCH resources indicated do not overlap with the PUCCH resources indicated by PRIs of "000”, “001", and “010”).
  • the terminal receives the PDSCH transmission, and according to the PUCCH resource indicated by the PRI in the DCI used by the PDCCH corresponding to each PDSCH, there is an overlap in the time domain between the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH.
  • the PDSCH is divided into a group, and the PDSCHs that do not overlap in the time domain between the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH are divided into different groups, that is, in the time slots n, n + 1, and n + 2
  • the PDSCH transmitted in the middle is divided into one group, and the PDSCH transmitted in the time slot n + 3 is divided into one group. Then HARQ-ACK feedback is performed separately for each group.
  • the PUCCH resources 501, 502, 503, and 504 are the PUCCH indicated by the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted on time slots n, n + 1, n + 2, and n + 3, respectively.
  • the transmitted PDSCH is divided into the same group, and the HARQ-ACK feedback of the three PDSCHs is transmitted on the PUCCH resource 503.
  • the terminal divides the PDSCH transmitted on time slot n + 3 and the PDSCH transmitted on time slot n, n + 1, n + 2 into different types. Group, the HARQ-ACK feedback of PDSCH in slot n + 3 is transmitted on PUCCH resource 504.
  • the terminal Before the PUCCH resource is determined according to the PRI, the terminal needs to select a PUCCH resource set from the at least one PUCCH resource set, and then determines the PUCCH resource set in the selected PUCCH resource set according to the PRI in the DCI used by each downlink transmission corresponding PDCCH. PUCCH resources for transmitting each downlink transmitted HARQ-ACK.
  • each PDSCH corresponds to 1-bit HARQ-ACK feedback
  • the first group of PDSCH corresponds to 3-bit HARQ-ACK feedback
  • the second PUCCH resource set is selected (assuming the second The PUCCH resource set is used to carry 3 to N1 bits of information)
  • the second group of PDSCH corresponds to the 1-bit HARQ_ACK feedback
  • the first PUCCH resource set is selected.
  • each PDSCH may exceed 1-bit HARQ-ACK feedback for each PDSCH, and each group of PDSCH may exceed 2-bit HARQ-ACK feedback.
  • a PUCCH resource set is selected according to the number of HARQ-ACK feedback bits corresponding to each group of PDSCH.
  • each PDSCH is sorted according to the corresponding DAI value (the actual PDSCH transmission order needs to be determined according to the transmission time domain position and scheduling timing of the PDCCH scheduling it, which may not be the order in Figure 4, However, the HARQ-ACK feedback is sorted according to DAI. For convenience, the PDSCH is sorted in the order of DAI in this embodiment.)
  • the C-DAI corresponding to the PDSCH in each group is sequentially increased.
  • the last C-DAI in the group is equivalent to T-DAI, which expresses the total number of PDSCHs scheduled in the group.
  • the C-DAI it is possible to perform HARQ-ACK ordering within a group and determine the HARQ- corresponding to a group of PDSCH.
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH may be set by the base station according to the expected transmission mode.
  • the base station may also set the DAI value according to the expected transmission mode. For example, when the base station wants to divide the PDSCH transmitted in timeslots n, n + 1, and n + 2 into a group, and divide the PDSCH transmitted in timeslot n + 3 into a group, the timeslots n, n, and The PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in n + 1 and n + 2 is set to indicate that there is an overlapped PUCCH resource.
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n can be set.
  • the PRI is set to "000”
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n + 1 is set to "001" (the PUCCH resource indicated by the PRI is "001" and the PRI indicated by the "000” PUCCH resources overlap)
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in timeslot n + 3 can be set to correspond to the PDSCH transmitted in timeslots n, n + 1, and n + 2, respectively
  • the PUCCH resources indicated by the PRI in the DCI used by the PDCCH do not overlap,
  • the PRI in the CI is set to "111" (the PUCCH resource indicated by the PRI is "111" does not overlap with the PUCCH resource indicated by the PRIs of "000", "001", and “010”). It can be understood that, because the PUCCH resource indicated by the PRI "001” and the PUCCH resource indicated by the PRI "000” overlap, the PUCCH resource indicated by the PRI "010” and the PUCCH resource indicated by the PRI "001" overlap, The base station can flexibly change the PUCCH resources corresponding to a group of PDSCH when setting the PRI.
  • the base station determines that the resource corresponding to "000" has been occupied by other terminals in time slot n + 1, then it can change the first group of PDSCH to perform HARQ-ACK feedback on the PUCCH resource corresponding to "001", and in time slot n + 2 It is determined that the resource corresponding to "001" is not enough to transmit a 3-bit HARQ-ACK, and then the first group of PDSCHs can be changed to perform HARQ-ACK feedback on the PUCCH resource corresponding to "010". Before setting the PRI, the base station needs to select a PUCCH resource set from at least one PUCCH resource set configured for the terminal, and then perform a PRI indication in the selected PUCCH resource set.
  • the base station may select a PUCCH resource set in the same manner as the terminal selects the PUCCH resource set, and details are not described again. That is, the resource indicated by the PRI is the resource in the selected PUCCH resource set. In this way, when the terminal and the base station select the PUCCH resource set according to the same rule, the understanding of the PUCCH resource set is consistent, so as to ensure the understanding of the resource indicated by the PRI. Consistent.
  • K1 8 corresponding to PDSCH in time slot n
  • K1 7 corresponding to PDSCH in time slot n + 1
  • the base station wants to group 4 PDSCHs transmitted in time slots n to (n + 3) into one group, and group 4 PDSCHs transmitted in time slots (n + 4) to (n + 7) into one group.
  • the two sets of PDQ HARQ-ACKs are transmitted on two PUCCHs respectively.
  • the two PUCCHs are in the same time slot, but they do not overlap with each other in the time domain.
  • the base station can achieve this transmission mode by properly setting DAI and PRI; for each group of PDSCH, the base station selects one of multiple PUCCH resource sets according to the total number of HARQ-ACK bits corresponding to the group of PDSCH, and then sets the PRI in the following manner Indicate one PUCCH resource to the terminal from the eight PUCCH resources in the selected one PUCCH set.
  • the base station may set the PRI in the DCI used by the PDCCH corresponding to the four PDSCHs transmitted in the timeslots n to (n + 3) to the same value, for example, all are set to "000” or all are set to "001”, sets the PRI in the DCI used by the PDCCH corresponding to the 4 PDSCHs transmitted in the time slots (n + 4) to (n + 7) to the same value, but different from the time slots n to (n +3)
  • the PRI values in the DCI used by the PDCCH corresponding to the four PDSCHs transmitted are all set to "011” or "111", for example.
  • the PUCCH resources corresponding to the PRI in the DCI used by the 4 PDCCHs corresponding to the four PDSCHs transmitted in time slots n to (n + 3) belong to the same group and transmitted in time slots (n + 4) to (n + 7)
  • the PUCCH resources corresponding to the PRI in the DCI used by the PDCCHs corresponding to the four PDSCHs do not overlap with each other in the time domain, indicating that HARQ-ACK transmission can be performed on different PUCCHs separately, as shown in FIG. 6.
  • the terminal may determine the packet according to the PUCCH resource indicated by the PRI, and then transmit the HARQ-ACK of the four PDSCHs transmitted in time slots n to (n + 3) on the PUCCH resource 601 indicated by the PRI of "000", and the PRI is "011
  • the HARQ-ACKs of the 4 PDSCHs transmitted in the time slots (n + 4) to (n + 7) are transmitted on the PUCCH resource 602 indicated by "".
  • the PRI value in the DCI used by the PDCCH corresponding to the PDSCH in the same group may also be different, as long as different PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the PDSCH in the same group are met.
  • There may be overlap in the time domain and the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the PDSCH in different groups may not overlap with each other in the time domain. For example, as shown in FIG. 7, assuming that the PUCCH resources corresponding to PRI “000” and “001” overlap in the time domain, both states can be used for the PRI indication in the same group of PDSCH to change the PRI indication.
  • the base station may set the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in time slots (n + 4) to (n + 7) as an indication, corresponding to the PDSCH transmitted in time slots n to (n + 3).
  • PUCCH resources whose PUCCH resources indicated by the PRI in the DCI used by the PDCCH do not overlap in the time domain are grouped into one group, and the four PDSCHs transmitted in time slots (n + 4) to (n + 7) are grouped into one group.
  • the PRI in the DCI used by the PDCCH corresponding to the PDSCH in the same group may be set to the same value or a different value, as long as the PRI in the DCI used by the PDCCH corresponding to the PDSCH in the same group is indicated. There is overlap in PUCCH resources.
  • the base station may set the PRI in the DCI used by the PDCCH corresponding to the four PDSCHs transmitted in time slots n to (n + 3) to different values, but because the PUCCH resources corresponding to "000" and "001" are between If there is overlap in the time domain, it can be determined that the four PDSCHs transmitted in time slots n to (n + 3) belong to the same group, and the PUCCH resources for transmitting the group of PDSCHs are used according to the last PDCCH in the PDCCH corresponding to the group of PDSCHs.
  • the PUCCH resource indicated by the PRI in the DCI that is, the PUCCH resource indicated by the PRI is "001".
  • the base station can set the PRI in the DCI used by the PDCCH corresponding to the four PDSCHs transmitted in the time slots (n + 4) to (n + 7) to different values, but because "011" and "111" Corresponding PUCCH resources overlap in the time domain, you can determine that the four PDSCHs transmitted in time slots (n + 4) to (n + 7), although they have different PRIs, still belong to the same group, and HARQ is performed on the same PUCCH -ACK feedback, the PUCCH resource for transmitting the HARQ-ACK of the PDSCH of the group is the PUCCH resource indicated by the PRI in the DCI used by the last PDCCH in the group of PDCCH corresponding to the PDSCH, that is, the PUCCH resource indicated by the PRI corresponding to the 8th PDSCH , That is, the PUCCH resource corresponding to the PRI of "111".
  • the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the four PDSCHs are different, so the 8 PDSCHs can be naturally divided into two groups according to the PRI, and HARQ-ACK feedback is performed on different PUCCHs. As shown in FIG.
  • PUCCH resource 701 is a PUCCH resource indicated by a PRI of "000”
  • PUCCH resource 702 is a PUCCH resource indicated by a PRI of "001”
  • PUCCH resource 703 is a PUCCH resource indicated by a PRI of "011”
  • a PUCCH resource 704 is a PUCCH resource indicated by a PRI of "111”.
  • the terminal may determine the packet according to the PUCCH resource indicated by the PRI, and then transmit the HARQ-ACKs of the four PDSCHs transmitted in time slots n to (n + 3) on the PUCCH resource 702 indicated by the PRI of "001", and the PRI is "111
  • the HARQ-ACKs of the 4 PDSCHs transmitted in the time slots (n + 4) to (n + 7) are transmitted on the PUCCH resource 704 indicated by "".
  • each PDSCH is sorted according to the corresponding DAI value (the actual PDSCH transmission order needs to be determined according to the transmission time domain position and scheduling timing of the PDCCH scheduling it, which may not be the order in the figure).
  • the HARQ-ACK feedback is sorted according to DAI.
  • the PDSCH is sorted in the order of DAI in this embodiment.
  • the C-DAI in each group of PDSCH is sequentially increased. Because it is a single carrier, each group The last C-DAI is equivalent to T-DAI, that is, it expresses the total number of PDSCHs scheduled in this group.
  • C-DAI it is possible to perform HARQ-ACK ordering within a group and determine the HARQ-ACK corresponding to a group of PDSCH.
  • each PDSCH corresponds to C-DAI and T-DAI.
  • 2-bit T-DAI is used.
  • the number of HARQ-ACK bits corresponding to a group of PDSCH can be determined, and C-DAI is accumulated in a group in the order of first frequency domain and then time domain.
  • the PDSCHs with overlapping PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH on different carriers can be divided into the same group. For example, as shown in FIG. 8, transmission is performed on timeslots n and n + 1 of carrier 1.
  • the PRI in the DCI used by the PDSCH and the PDCCH corresponding to the PDSCH transmitted on timeslots n and n + 1 of carrier 2 are both "000", and the indicated PUCCH resource is PUCCH resource 801; in the timeslot of carrier 1
  • the PRI in the DCI used for the PDSCH transmitted on n + 2 and n + 3 and the PDCCH corresponding to the PDSCH transmitted on timeslots n + 2 and n + 3 of carrier 2 are both "001", and the indicated PUCCH resources Is the PUCCH resource 802;
  • the PRI in the DCI used for the PDSCH transmitted on timeslots n + 4 to n + 6 of carrier 1 and the PDCCH corresponding to the PDSCH transmitted on timeslots n + 4 to n + 6 of carrier 2 Both are "011", and the indicated PUCCH resource is PUCCH resource 803; the DCI used by the PDSCH transmitted on slot n + 7 of carrier 1 and the PDCCH corresponding to the
  • the PDSCH transmitted by the carrier on the time slots n and n + 3 of the carrier 1 and the PDSCH transmitted on the time slots n and n + 3 of the carrier 2 can be divided into the same group.
  • the HARQ-ACK of the group of PDSCHs is transmitted on the PUCCH resource indicated by "001"; the PDSCH transmitted on carriers n + 4 and n + 7 on carrier 1 and the carriers n + 4 and n + 7 on carrier 2
  • the transmitted PDSCH is divided into the same group, and the HARQ-ACK of this group of PDSCH is transmitted on the PUCCH resource indicated by the PRI as "111".
  • the above example only uses eight PUCCH resources in one PUCCH resource set as an example.
  • the number of PUCCH resources included in one PUCCH resource set may be less than eight or greater than eight.
  • the number of PRI bits can also be adjusted accordingly. For example, when 4 PUCCH resources are included, the number of PRI bits is 2 bits.
  • a PUCCH resource set includes more than 8 PUCCH resources, a PUCCH resource indication needs to be performed through PRI in combination with a Control Channel Element Index (CCE index) of the PDCCH.
  • CCE index Control Channel Element Index
  • a PUCCH group when a PUCCH group is configured (that is, when a PUCCH is supported for transmission on a Secondary Component Carrier (SCC), multiple carriers of the terminal are divided into At least two carrier groups, one carrier in each carrier group can transmit PUCCH, and the downlink transmission in different carrier group is performed on the uplink transmission of independent control information (Uplink Control Information, UCI) on the carrier transmitting PUCCH in the carrier group. ),
  • UCI Uplink Control Information
  • the embodiments of the present disclosure are used independently in each PUCCH group.
  • FIG. 9 is a flowchart of a PUCCH receiving method according to an embodiment of the present disclosure. As shown in FIG. 9, the PUCCH receiving method is executed by a base station, and specifically includes the following steps:
  • Step 901 Send at least two downlink transmissions, and the HARQ-ACKs of the at least two downlink transmissions are transmitted in a same time unit.
  • Step 902 Determine a PUCCH resource for transmitting the HARQ-ACK of the at least two downlink transmissions according to a PUCCH resource indicated by a PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions.
  • Step 903 Receive a corresponding downlink transmission HARQ-ACK on the determined PUCCH resource.
  • the determining a PUCCH resource for transmitting the HARQ-ACK of the at least two downlink transmissions according to a PUCCH resource indicated by a PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions includes: :
  • the PUCCH resources for transmitting the HARQ-ACKs of the at least two downlink transmissions are determined.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resource is a PUCCH resource indicated by a PRI in a DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions respectively;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCHs corresponding to the at least two downlink transmissions, respectively.
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions: the PDCCH corresponding to the at least two downlink transmissions respectively
  • the PUCCH resources indicated by the PRI in the DCI used are the same;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCH corresponding to the at least two downlink transmissions:
  • the PUCCH resources indicated by the PRI are the same, or the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions are different, and there is overlap in the time domain.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resource indicated by the PRI in the DCI used by one PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the PDCCHs corresponding to multiple downlink transmissions belonging to the same group indicate the same or different PUCCH resources, and when different PUCCH resources are indicated, one of the PUCCH resources and at least one other PUCCH resource There is overlap in the time domain.
  • determining the HARQ for transmitting the at least two downlink transmissions -ACK PUCCH resources including:
  • the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH in the at least two downlink transmissions are divided into different groups, and the downlink transmissions corresponding to each group of downlink transmissions are determined separately.
  • the PUCCH resource indicated by the PRI in the DCI used by the one or the last PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the respective PDCCHs corresponding to multiple downlink transmissions belonging to different groups indicate different PUCCH resources, and there is no overlap in time domain between the different PUCCH resources.
  • the downlink transmission includes any one or more of the following:
  • the PDCCH corresponding to the downlink transmission is: the PDCCH indicating the release of downlink SPS resources.
  • the time unit is any one of the following:
  • this embodiment may be a base station-side embodiment corresponding to the embodiment shown in FIG. 2.
  • the principle of PUCCH reception is similar to the principle of PUCCH transmission. For the specific process, see the embodiment shown in FIG. 2. The description is not repeated here.
  • An embodiment of the present disclosure also provides a terminal. Since the principle of the terminal to solve the problem is similar to the PUCCH transmission method in the embodiment of the present disclosure, the implementation of the terminal can refer to the implementation of the PUCCH transmission method, and the details are not described again.
  • an embodiment of the present disclosure further provides a terminal 1000.
  • the terminal 1000 includes a processor 1001 and a transceiver 1002.
  • the transceiver 1002 may be multiple elements, including a transmitter and a receiver, and a unit for communicating with various other devices on a transmission medium.
  • the transceiver 1002 is used for controlling the processor 1001. Receive and send data;
  • the processor 1001 or the transceiver 1002 is configured to receive at least two downlink transmissions, and the hybrid automatic retransmission request for the at least two downlink transmissions confirms that HARQ-ACK is transmitted in a same time unit;
  • the processor 1001 is further configured to determine a PUCCH resource indicated by a physical uplink control channel PUCCH resource indication field PRI in downlink control information DCI used by the physical downlink control channel PDCCH corresponding to the at least two downlink transmissions, respectively. PUCCH resources for transmitting the at least two HARQ-ACKs transmitted in the downlink;
  • the processor 1001 or the transceiver 1002 is further configured to send a corresponding downlink transmission HARQ-ACK on the determined PUCCH resource.
  • the processor 1001 is specifically configured to:
  • the PUCCH resources for transmitting the HARQ-ACKs of the at least two downlink transmissions are determined.
  • the processor 1001 is specifically configured to:
  • the PUCCH resource is a PUCCH resource indicated by a PRI in a DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions respectively;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCHs corresponding to the at least two downlink transmissions, respectively.
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions: the PDCCH corresponding to the at least two downlink transmissions respectively
  • the PUCCH resources indicated by the PRI in the DCI used are the same;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCH corresponding to the at least two downlink transmissions:
  • the PUCCH resources indicated by the PRI are the same, or the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions are different, and there is overlap in the time domain.
  • the processor 1001 is specifically configured to:
  • the processor 1001 is specifically configured to:
  • the PUCCH resource indicated by the PRI in the DCI used by one PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the PDCCHs corresponding to multiple downlink transmissions belonging to the same group indicate the same or different PUCCH resources, and when different PUCCH resources are indicated, one of the PUCCH resources and at least one other PUCCH resource There is overlap in the time domain.
  • the processor 1001 is specifically configured to:
  • the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH in the at least two downlink transmissions are divided into different groups, and the downlink transmissions corresponding to each group of downlink transmissions are determined separately.
  • the PUCCH resource indicated by the PRI in the DCI used by the one or the last PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the respective PDCCHs corresponding to multiple downlink transmissions belonging to different groups indicate different PUCCH resources, and there is no overlap in time domain between the different PUCCH resources.
  • the downlink transmission includes any one or more of the following:
  • the PDCCH corresponding to the downlink transmission is: the PDCCH indicating the release of downlink SPS resources.
  • the time unit is any one of the following:
  • terminal provided by the embodiment of the present disclosure can implement the processes in the method embodiments of FIG. 2 to FIG. 8, and the implementation principles and technical effects thereof are similar, which will not be repeated here in this embodiment.
  • a base station is also provided in the embodiment of the present disclosure. Since the principle of the base station to solve the problem is similar to the PUCCH transmission and reception in the embodiment of the present disclosure, the implementation of the base station can refer to the implementation of the PUCCH receiving method.
  • an embodiment of the present disclosure further provides a base station 1100.
  • the base station 1100 includes a processor 1101 and a transceiver 1102.
  • the transceiver 1102 may be a plurality of elements, including a transmitter and a receiver, and a unit for communicating with various other devices on a transmission medium.
  • the transceiver 1102 is used for controlling the processor 1101. Receive and send data;
  • the processor 1101 or the transceiver 1102 is configured to send at least two downlink transmissions, and the HARQ-ACKs of the at least two downlink transmissions are transmitted in a same time unit;
  • the processor 1101 is further configured to determine a PUCCH used to transmit the HARQ-ACK of the at least two downlink transmissions according to a PUCCH resource indicated by a PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions, respectively. Resources
  • the processor 1101 or the transceiver 1102 is further configured to receive a corresponding downlink transmission HARQ-ACK on the determined PUCCH resource.
  • the processor 1101 is specifically configured to:
  • the PUCCH resources for transmitting the HARQ-ACKs of the at least two downlink transmissions are determined.
  • the processor 1101 is specifically configured to:
  • the PUCCH resource is a PUCCH resource indicated by a PRI in a DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions respectively;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCHs corresponding to the at least two downlink transmissions, respectively.
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions: the PDCCH corresponding to the at least two downlink transmissions respectively
  • the PUCCH resources indicated by the PRI in the DCI used are the same;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCH corresponding to the at least two downlink transmissions:
  • the PUCCH resources indicated by the PRI are the same, or the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions are different, and there is overlap in the time domain.
  • the processor 1101 is specifically configured to:
  • the processor 1101 is specifically configured to:
  • the PUCCH resource indicated by the PRI in the DCI used by one PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the PDCCHs corresponding to multiple downlink transmissions belonging to the same group indicate the same or different PUCCH resources, and when different PUCCH resources are indicated, one of the PUCCH resources and at least one other PUCCH resource There is overlap in the time domain.
  • the processor 1101 is specifically configured to:
  • the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH in the at least two downlink transmissions are divided into different groups, and the downlink transmissions corresponding to each group of downlink transmissions are determined separately.
  • the PUCCH resource indicated by the PRI in the DCI used by the one or the last PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the respective PDCCHs corresponding to multiple downlink transmissions belonging to different groups indicate different PUCCH resources, and there is no overlap in time domain between the different PUCCH resources.
  • the downlink transmission includes any one or more of the following:
  • the PDCCH corresponding to the downlink transmission is: the PDCCH indicating the release of downlink SPS resources.
  • the time unit is any one of the following:
  • the base station provided by the embodiment of the present disclosure can implement the processes in the method embodiments of FIG. 2 to FIG. 8, and the implementation principles and technical effects thereof are similar, which will not be repeated here in this embodiment.
  • the terminal 1200 shown in FIG. 12 includes: at least one processor 1201, a memory 1202, at least one network interface 1204, and a user interface 1203.
  • the various components in the terminal 1200 are coupled together through a bus system 1205.
  • the bus system 1205 is configured to implement connection and communication between these components.
  • the bus system 1205 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for the sake of clarity, various buses are marked as the bus system 1205 in FIG. 12.
  • the user interface 1203 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball, a touchpad, or a touch screen, etc.).
  • a pointing device for example, a mouse, a trackball, a touchpad, or a touch screen, etc.
  • the memory 1202 in the embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double SDRAM, DDRSDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synlink DRAM, SLDRAM synchronous connection dynamic random access memory
  • Direct Rambus RAM Direct Rambus RAM
  • the memory 1202 stores the following elements, executable modules or data structures, or a subset of them, or their extended set: an operating system 12021 and an application program 12022.
  • the operating system 12021 includes various system programs, such as a framework layer, a core library layer, and a driver layer, etc., for implementing various basic services and processing hardware-based tasks.
  • the application program 12022 includes various application programs, such as a media player (Player), a browser (Browser), and the like, and is used to implement various application services.
  • a program for implementing the method of the embodiment of the present disclosure may be included in the application program 12022.
  • the program or instruction stored in the application program 12022 can be implemented to implement each step in the PUCCH sending method when executed.
  • the terminal provided by the embodiment of the present disclosure can execute the above-mentioned embodiment of the PUCCH sending method, and its implementation principles and technical effects are similar, and this embodiment will not repeat them here.
  • the base station 1300 shown in FIG. 13 includes at least one processor 1301, a memory 1302, at least one network interface 1304, and a user interface 1303.
  • the various components in the base station 1300 are coupled together by a bus system 1305.
  • the bus system 1305 is configured to implement connection and communication between these components.
  • the bus system 1305 includes a power bus, a control bus, and a status signal bus in addition to a data bus.
  • various buses are marked as the bus system 1305 in FIG. 13.
  • the user interface 1303 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball, a touch panel, or a touch screen, etc.).
  • a pointing device for example, a mouse, a trackball, a touch panel, or a touch screen, etc.
  • the memory 1302 in the embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double SDRAM, DDRSDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synlink DRAM, SLDRAM synchronous connection dynamic random access memory
  • Direct RAMbus RAM Direct RAMbus RAM
  • the memory 1302 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: an operating system 13021 and an application program 13022.
  • the operating system 13021 includes various system programs, such as a framework layer, a core library layer, and a driver layer, etc., and is used to implement various basic services and process hardware-based tasks.
  • the application program 13022 includes various application programs, such as a media player (Player), a browser (Browser), and the like, and is used to implement various application services.
  • a program for implementing the method of the embodiment of the present disclosure may be included in the application program 13022.
  • the program or instruction stored in the application program 13022 can be implemented to implement each step in the PUCCH receiving method when executed.
  • the base station provided by the embodiment of the present disclosure can execute the foregoing PUCCH receiving method embodiment, and its implementation principles and technical effects are similar, and this embodiment will not repeat them here.
  • An embodiment of the present disclosure further provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps in the PUCCH sending method and the PUCCH receiving method provided by the embodiments of the present disclosure can be implemented.
  • the present disclosure also provides a terminal 1400.
  • the terminal 1400 includes:
  • the receiving module 1401 is configured to receive at least two downlink transmissions, and the HARQ-ACKs of the at least two downlink transmissions are transmitted in a same time unit;
  • the determining module 1402 is further configured to determine a PUCCH resource for transmitting the HARQ-ACK of the at least two downlink transmissions according to a PUCCH resource indicated by a PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions respectively;
  • the sending module 1403 is further configured to send a corresponding downlink transmission HARQ-ACK on the determined PUCCH resource.
  • the determining module 1402 is specifically configured to:
  • the PUCCH resources for transmitting the HARQ-ACKs of the at least two downlink transmissions are determined.
  • the determining module 1402 is specifically configured to:
  • the PUCCH resource is a PUCCH resource indicated by a PRI in a DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions respectively;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCHs corresponding to the at least two downlink transmissions, respectively.
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions: the PDCCH corresponding to the at least two downlink transmissions respectively
  • the PUCCH resources indicated by the PRI in the DCI used are the same;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCH corresponding to the at least two downlink transmissions:
  • the PUCCH resources indicated by the PRI are the same, or the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions are different, and there is overlap in the time domain.
  • the determining module 1402 is specifically configured to:
  • the determining module 1402 is specifically configured to:
  • the PUCCH resource indicated by the PRI in the DCI used by one PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the PDCCHs corresponding to multiple downlink transmissions belonging to the same group indicate the same or different PUCCH resources, and when different PUCCH resources are indicated, one of the PUCCH resources and at least one other PUCCH resource There is overlap in the time domain.
  • the determining module 1402 is specifically configured to:
  • the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH in the at least two downlink transmissions are divided into different groups, and the downlink transmissions corresponding to each group of downlink transmissions are determined separately.
  • the PUCCH resource indicated by the PRI in the DCI used by the one or the last PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the respective PDCCHs corresponding to multiple downlink transmissions belonging to different groups indicate different PUCCH resources, and there is no overlap in time domain between the different PUCCH resources.
  • the downlink transmission includes any one or more of the following:
  • the PDCCH corresponding to the downlink transmission is: the PDCCH indicating the release of downlink SPS resources.
  • the time unit is any one of the following:
  • terminal provided by the embodiment of the present disclosure can implement the processes in the method embodiments of FIG. 2 to FIG. 8, and the implementation principles and technical effects thereof are similar, which will not be repeated here in this embodiment.
  • the present disclosure further provides a base station 1500.
  • the base station 1500 includes:
  • a sending module 1501 is configured to send at least two downlink transmissions, where the HARQ-ACKs of the at least two downlink transmissions are transmitted in a same time unit;
  • a determining module 1502 configured to determine a PUCCH resource for transmitting the HARQ-ACK of the at least two downlink transmissions according to a PUCCH resource indicated by a PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions;
  • the receiving module 1503 is configured to receive a corresponding downlink transmission HARQ-ACK on the determined PUCCH resource.
  • the determining module 1502 is specifically configured to:
  • the PUCCH resources for transmitting the HARQ-ACKs of the at least two downlink transmissions are determined.
  • the determining module 1502 is specifically configured to:
  • the PUCCH resource is a PUCCH resource indicated by a PRI in a DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions respectively;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCHs corresponding to the at least two downlink transmissions, respectively.
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by any one of the PDCCHs corresponding to the at least two downlink transmissions: the PDCCH corresponding to the at least two downlink transmissions respectively
  • the PUCCH resources indicated by the PRI in the DCI used are the same;
  • the PUCCH resource is a PUCCH resource indicated by a PRI in the DCI used by the last PDCCH among the PDCCH corresponding to the at least two downlink transmissions:
  • the PUCCH resources indicated by the PRI are the same, or the PUCCH resources indicated by the PRI in the DCI used by the PDCCH corresponding to the at least two downlink transmissions are different, and there is overlap in the time domain.
  • the determining module 1502 is specifically configured to:
  • the determining module 1502 is specifically configured to:
  • the PUCCH resource indicated by the PRI in the DCI used by one PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the PDCCHs corresponding to multiple downlink transmissions belonging to the same group indicate the same or different PUCCH resources, and when different PUCCH resources are indicated, one of the PUCCH resources and at least one other PUCCH resource There is overlap in the time domain.
  • the determining module 1502 is specifically configured to:
  • the PUCCH resources indicated by the PRI in the DCI used by the corresponding PDCCH in the at least two downlink transmissions are divided into different groups, and the downlink transmissions corresponding to each group of downlink transmissions are determined separately.
  • the PUCCH resource indicated by the PRI in the DCI used by the one or the last PDCCH is a PUCCH resource used to transmit HARQ-ACK for the downlink transmission of the group.
  • the PRIs in the DCIs used by the respective PDCCHs corresponding to multiple downlink transmissions belonging to different groups indicate different PUCCH resources, and there is no overlap in time domain between the different PUCCH resources.
  • the downlink transmission includes any one or more of the following:
  • the PDCCH corresponding to the downlink transmission is: the PDCCH indicating the release of downlink SPS resources.
  • the time unit is any one of the following:
  • the base station provided by the embodiment of the present disclosure can implement the processes in the method embodiments of FIG. 2 to FIG. 8, and the implementation principles and technical effects thereof are similar, which will not be repeated here in this embodiment.
  • the disclosed methods and devices may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may be separately physically included, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware, or in the form of hardware plus software functional units.
  • the above integrated unit implemented in the form of a software functional unit may be stored in a computer-readable storage medium.
  • the above software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform some steps of the transmitting and receiving method described in the embodiments of the present disclosure.
  • the aforementioned storage media include: U disks, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks or compact discs, and other media that can store program codes .

Abstract

提供了一种PUCCH发送方法、接收方法、终端及基站，PUCCH发送方法包括：接收至少两个下行传输，至少两个下行传输的HARQ-ACK在同一个时间单元中传输；根据至少两个下行传输分别对应的PDCCH所使用的下行控制信息DCI中PRI指示的PUCCH资源，确定用于传输至少两个下行传输的HARQ-ACK的PUCCH资源；在确定的PUCCH资源上发送对应的下行传输的HARQ-ACK。

Description

PUCCH发送方法、接收方法、终端及基站
相关申请的交叉引用
本申请主张在2018年8月10日在中国提交的中国专利申请号No.201810909101.9的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种物理上行链路控制信道(Physical Uplink Control Channel，PUCCH)发送方法、接收方法、终端及基站。
背景技术
在无线通信系统中，考虑到实现和标准化的复杂度，相关技术中仅支持在一个时隙中传输一个承载混合自动重传请求确认(Hybrid Automatic Repeat reQuest Acknowledgement，HARQ-ACK)的PUCCH，只能根据反馈时序确定需要在同一个时隙中传输的多个HARQ-ACK都在同一个PUCCH上传输。例如需要在同一个时隙进行HARQ-ACK反馈的一个或多个物理下行链路共享信道(Physical Downlink Shared Channel，PDSCH)的HARQ-ACK和/或指示下行半持续调度(Semi-persistent Scheduling，SPS)资源释放的物理下行控制信道(Physical Downlink Control Channel，PDCCH)的HARQ-ACK，只在同一个PUCCH上传输，即在该时隙中不支持区分时分复用(Time Division Multiplexing，TDM)的多个PUCCH传输HARQ-ACK。
这样一来，如果时间上比较靠前传输的下行传输的HARQ-ACK需要跟后面的下行传输的HARQ-ACK在同一个PUCCH中传输，则传输PUCCH的时域位置需要满足最后面的下行传输的处理时延，必须将比较靠前传输的下行传输的HARQ-ACK也放在根据反馈时序确定的传输HARQ-ACK时隙中的比较靠后的时域位置上的PUCCH中进行传输，但实际上根据时间上比较靠前传输的下行传输的处理时延，其HARQ-ACK可以在该时隙中时间上更早的PUCCH上传输，从而导致时间上比较靠前传输的下行传输的HARQ-ACK 的反馈时延增加。
可见，相关技术中传输承载HARQ-ACK的PUCCH的方式容易导致HARQ-ACK的反馈时延增加。
发明内容
有鉴于此，本公开提供一种PUCCH发送方法、接收方法、终端及基站，以解决相关技术中传输承载HARQ-ACK的PUCCH的方式容易导致时间上比较靠前传输的HARQ-ACK的反馈时延增加的问题。
为解决上述技术问题，本公开提供一种PUCCH发送方法，应用于终端，包括：
接收至少两个下行传输，所述至少两个下行传输的HARQ-ACK在同一个时间单元中传输；
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
在确定的所述PUCCH资源上发送对应的下行传输的HARQ-ACK。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
可选地，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH 中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
可选地，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
可选地，所述下行传输包括以下任意一项或多项：
物理下行链路共享信道PDSCH；
指示下行半持续调度SPS资源释放的PDCCH。
可选地，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
可选地，所述时间单元为以下的任意一种：
一个时隙；
一个子帧；
一个微时隙。
第二方面，还提供了一种PUCCH接收方法，应用于基站，包括：
发送至少两个下行传输，所述至少两个下行传输的HARQ-ACK在同一个时间单元中传输；
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
在确定的所述PUCCH资源上接收对应的下行传输的HARQ-ACK。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的 HARQ-ACK的PUCCH资源，包括：
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
可选地，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
可选地，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
可选地，所述下行传输包括以下任意一项或多项：
物理下行链路共享信道PDSCH；
指示下行半持续调度SPS资源释放的PDCCH。
可选地，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
可选地，所述时间单元为以下的任意一种：
一个时隙；
一个子帧；
一个微时隙。
第三方面，还提供了一种终端，包括：
接收模块，用于接收至少两个下行传输，所述至少两个下行传输的HARQ-ACK在同一个时间单元中传输；
确定模块，还用于根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
发送模块，还用于在确定的所述PUCCH资源上发送对应的下行传输的HARQ-ACK。
可选地，所述确定模块具体用于：
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
可选地，所述确定模块具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
可选地，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
可选地，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相 同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
可选地，所述确定模块具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
可选地，所述确定模块具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
可选地，所述确定模块具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
可选地，所述下行传输包括以下任意一项或多项：
物理下行链路共享信道PDSCH；
指示下行半持续调度SPS资源释放的PDCCH。
可选地，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
可选地，所述时间单元为以下的任意一种：
一个时隙；
一个子帧；
一个微时隙。
第四方面，还提供了一种基站，包括：
发送模块，用于发送至少两个下行传输，所述至少两个下行传输的HARQ-ACK在同一个时间单元中传输；
确定模块，用于根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
接收模块，用于在确定的所述PUCCH资源上接收对应的下行传输的HARQ-ACK。
可选地，所述确定模块具体用于：
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
可选地，所述确定模块具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
可选地，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
可选地，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最 后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
可选地，所述确定模块具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
可选地，述确定模块具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
可选地，所述确定模块具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
可选地，所述下行传输包括以下任意一项或多项：
物理下行链路共享信道PDSCH；
指示下行半持续调度SPS资源释放的PDCCH。
可选地，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
可选地，所述时间单元为以下的任意一种：
一个时隙；
一个子帧；
一个微时隙。
第五方面，还提供了一种终端，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现上述PUCCH发送方法的步骤。
第六方面，还提供了一种基站，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现上述PUCCH接收方法的步骤。
第七方面，还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现上述PUCCH发送方法中的步骤；或者，所述计算机程序被处理器执行时实现上述PUCCH接收方法中的步骤。
在本公开实施例中，接收至少两个下行传输，所述至少两个下行传输的HARQ-ACK在同一个时间单元中传输；根据所述至少两个下行传输分别对应的PDCCH所使用的下行控制信息DCI中PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；在确定的所述PUCCH资源上发送对应的下行传输的HARQ-ACK，能够实现快速的HARQ-ACK反馈，降低HARQ-ACK反馈时延。
附图说明
图1为本公开实施例提供的无线通信系统的架构示意图；
图2为本公开实施例提供的PUCCH发送方法的流程图；
图3为本公开实施例提供的PUCCH传输示意图之一；
图4为本公开实施例提供的PUCCH传输示意图之二；
图5为本公开实施例提供的PUCCH传输示意图之三；
图6为本公开实施例提供的PUCCH传输示意图之四；
图7为本公开实施例提供的PUCCH传输示意图之五；
图8为本公开实施例提供的PUCCH传输示意图之六；
图9为本公开实施例提供的PUCCH接收方法的流程图；；
图10为本公开实施例提供的终端的示意图之一；
图11为本公开实施例提供的基站的示意图之一；
图12为本公开实施例提供的终端的示意图之二；
图13为本公开实施例提供的基站的示意图之二；
图14为本公开实施例提供的终端的示意图之三；
图15为本公开实施例提供的基站的示意图之四。
具体实施方式
下面将结合附图和实施例，对本公开的具体实施方式作进一步详细描述。以下实施例用于说明本公开，但不用来限制本公开的范围。
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B，表示包含单独A，单独B，以及A和B都存在三种情况。
在本公开实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本文所描述的技术不限于长期演进型(Long Time Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，并且也可用于各种无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access， OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。术语“系统”和“网络”常被可互换地使用。CDMA系统可实现诸如CDMA2000、通用地面无线电接入(Universal Terrestrial Radio Access，UTRA)等无线电技术。UTRA包括宽带CDMA(Wideband Code Division Multiple Access，WCDMA)和其他CDMA变体。TDMA系统可实现诸如全球移动通信系统(Global System for Mobile Communication，GSM)之类的无线电技术。OFDMA系统可实现诸如超移动宽带(Ultra Mobile Broadband，UMB)、演进型UTRA(Evolution-UTRA，E-UTRA)、IEEE802.11(Wi-Fi)、IEEE 802.16(WiMAX)、IEEE 802.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信系统(Universal Mobile Telecommunications System，UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。UTRA、E-UTRA、UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project，3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。
随着移动通信业务需求的发展变化，国际电信联盟(International Telecommunication Union，ITU)等多个组织都开始研究新的无线通信系统(New RAT，NR)，例如第五代无线通信系统(5Generation New RAT(Radio Access Technology)，5G NR)。NR中定义了5种PUCCH格式(format)，其中，PUCCH format 0和2由于时域仅占用1到2个符号，可被称之为短PUCCH格式，可用于对时延比较敏感的业务进行HARQ-ACK反馈，以降低反馈时延。PUCCH format 1/3/4由于时域占用4到14个符号，可被称之为长PUCCH格式，可以实现时延和上行覆盖的折中需求。上述符号为正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号或单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)符号或离散傅里叶变换扩频的正交频分复用(Discrete Fourier Transform-spread Orthogonal Frequency Division Multiplexing，DFT-s-OFDM)符号。
HARQ-ACK可以是按照反馈时序(动态的反馈时序或固定的反馈时序) 确定传输的时域位置(包括时隙以及时隙内的符号位置)。所谓反馈时序，可以指需要进行HARQ-ACK反馈下行传输的结束位置到传输HARQ-ACK起始位置之间的时间间隔。相关技术中，在NR系统中以时隙(slot)为单位定义此反馈时序，表现为K1值，该值表达了需要进行HARQ-ACK反馈的下行传输所在的时隙到HARQ-ACK传输所在的时隙之间的时隙间隔。动态的反馈时序为调度下行传输的PDCCH所使用的下行控制信息(Downlink Control Information，DCI)中存在指示域指示K1值。固定的反馈时序则是高层信令配置一个K1值。不论动态的反馈时序还是固定的反馈时序，都是基于下行传输的结束位置来确定HARQ-ACK反馈所在的时隙，当下行传输是动态调度的时候，HARQ-ACK反馈的时隙也是随之动态改变的。在根据K1确定的传输HARQ-ACK的时隙中，承载HARQ-ACK的PUCCH的具体符号位置则根据DCI中的PUCCH资源指示域(PUCCH Resource Indication，PRI)从高层信令预先配置的多个PUCCH资源中确定一个。
NR中支持两种HARQ-ACK码本(codebook)，即半静态(semi-static)HARQ-ACK codebook和动态(dynamic)HARQ-ACK codebook。semi-static codebook根据一个时隙对应的K1集合以及每个时隙中的可能的下行传输的时域资源分配位置，确定该时隙中的semi-static codebook大小。dynamic HARQ-ACK codebook则根据一个时隙对应的K1集合确定可能的下行传输位置，根据这些下行传输位置以及下行调度时序集合(K0)确定可能的传输PDCCH的检测机会(monitoring occasion)集合，根据这些PDCCH monitoring occasion中检测到的PDCCH所使用的DCI中包括的下行分配索引(Downlink Assignment Index，DAI)域确定codebook的大小和排序。DAI包括计数DAI(Counter-DAI，C-DAI)和总DAI(Total-DAI，T-DAI)，其中C-DAI用于对不同下行传输的HARQ-ACK进行排序(即指示到当前下行传输的时域和频域位置，累计调度的下行传输个数)，T-DAI用于指示codebook的大小(即指示到当前时域位置调度的下行传输总计个数)。
对于semi-static codebook，基站可以通过改变PRI避免PUCCH资源冲突，进行更为灵活的PUCCH资源分配。对于dynamic codebook，由于基站在前面发送的PDCCH中不能预测后面的调度情况，因此不能在前面发送的PDCCH 中就通过PRI指示一个最终的PUCCH资源。因此，对于两种codebook，codebook中包括的多个下行传输所对应的PDCCH所使用的DCI中的PRI是可以逐个传输改变的，以便保证所有HARQ-ACK都能够在一个PUCCH中承载传输。相关技术中的传输机制无法区分多个下行传输的HARQ-ACK是否对应在同一个PUCCH。基于上述背景，下面结合附图介绍本公开的实施例。
参请参考图1，图1是本公开实施例提供的一种无线通信系统的架构示意图，如图1所示，该无线通信系统可以包括：基站10和终端11，终端11可以与基站10通信(传输信令或者传输数据)。在实际应用中，基站10和终端11之间的连接可以为无线连接，为了方便直观地表示各个设备之间的连接关系，图1中采用实线示意。需要说明的是，上述通信系统可以包括多个终端11，基站10可以与多个终端11通信。
需要说明的是，上述通信系统中的基站10可以为通常所用的基站，也可以为演进型基站(evolved node base station，eNB)，还可以为5G系统中的网络设备(例如，下一代基站(next generation node base station，gNB)或发送和接收点(transmission and reception point，TRP))等设备。
本公开实施例提供的终端11可以为手机、平板电脑、笔记本电脑、超级移动个人计算机(Ultra-Mobile Personal Computer，UMPC)、上网本或者个人数字助理(Personal Digital Assistant，PDA)等。
图2是本公开实施例提供的PUCCH发送方法的流程图，参见图2，该PUCCH发送方法的执行主体为终端，具体步骤如下：
步骤201、接收至少两个下行传输，所述至少两个下行传输的HARQ-ACK在同一个时间单元中传输。
步骤202、根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
步骤203、在确定的所述PUCCH资源上发送对应的下行传输的HARQ-ACK。
本公开实施例中，终端接收到至少两个下行传输时，可以判断所述至少两个下行传输的HARQ-ACK是否在同一个时间单元中传输，具体地，可以 根据所述至少两个下行传输的HARQ-ACK反馈时序进行判断，所述HARQ-ACK反馈时序为下行传输对应的PDCCH中的HARQ-ACK反馈时序指示域指示的，或者由高层信令配置的。所述至少两个下行传输可以为基站向所述终端发送，所述终端接收基站发送的至少两个下行传输。
当所述至少两个下行传输的HARQ-ACK在同一个时间单元中传输时，所述终端根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，并在确定的所述PUCCH资源上发送对应的下行传输的HARQ-ACK。所述终端可以根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源的重叠情况，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
本公开一些实施例中，可以预先为终端配置至少一个PUCCH资源集合，例如高层信令为终端预先配置。当配置多个PUCCH资源集合时，不同的PUCCH资源集合对应不同的UCI传输比特数范围，例如第一个PUCCH资源集合对应1到2比特UCI传输，第二个PUCCH资源集合对应3到N1比特UCI传输，第三个PUCCH资源集合对应N1+1到N2比特UCI传输，等等；如果仅配置一个PUCCH资源集合，则通常为第一个PUCCH资源集合，即对应1到2比特UCI传输的集合；每个PUCCH资源集合中包含多个PUCCH资源，PDCCH所使用的DCI中的PRI可以用于指示其中的一个资源；所述终端从所述至少一个PUCCH资源集合中选择一个PUCCH资源集合，然后根据每个下行传输对应的PDCCH所使用的DCI中的PRI在选择的PUCCH资源集合中该下行传输对应的PUCCH资源。当高层信令仅为所述终端配置一个PUCCH资源集合时，所述终端直接选择该一个PUCCH资源集合；当高层信令为所述终端配置至少两个PUCCH资源集合时，所述终端根据下行传输的HARQ-ACK的反馈比特数从所述至少两个PUCCH资源集合中选择一个PUCCH资源集合。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
具体地，所述终端可以在所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输；在所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
所述终端也可以根据所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，对所述至少两个下行传输进行分组，然后确定用于传输每组下行传输HARQ-ACK的PUCCH资源。例如，所述终端可以将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的的下行传输作为一组；将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
可选地，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
该实施例中，当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。所述PUCCH资源可以为所 述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源，也可以为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
可选地，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
该实施例中，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时，PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠包括：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同。当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时，PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠，包括PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所 述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
该实施例中，同一组内的所有下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源可以包括相同的重叠区域，即每一个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源与组内其他所有下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源之间均存在重叠。同一组内的所有下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源可以不包括相同的重叠区域，但存在关联性重叠，即每一个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源与组内至少一个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源存在重叠。
举例而言，假设按照时间先后顺序存在4个下行传输，在时隙n传输的下行传输1、在时隙(n+1)传输的下行传输2、在时隙(n+2)传输的下行传输3和在时隙(n+3传输的下行传输4)。下行传输1对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源与下行传输2对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源存在重叠，下行传输3对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源与下行传输2对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源存在重叠，则无论下行传输3对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源是否与下行传输1对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源是否存在重叠，均可以将下行传输1、下行传输2和下行传输3作为一组，在同一个PUCCH资源上进行HARQ-ACK反馈。下行传输4对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源与下行资源1、下行传输2和下行传输3对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源均不存在重叠，则下行传输4下行传输1、2、3属于不同的组，在不同的PUCCH上进行HARQ-ACK反馈。
可选地，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
该实施例中，所述终端将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别在每组下行传输对应的PDCCH中任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源上，传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
本公开实施例中，不同组下行传输中包括的下行传输的个数可以相同，也可以不相同。当高层信令为所述终端配置至少两个PUCCH资源集合时，所述终端根据每组下行传输的HARQ-ACK的反馈比特数从所述至少两个PUCCH资源集合中选择一个PUCCH资源集合，例如当一组下行传输HARQ-ACK的反馈比特数为1至2比特时，选择包括PUCCH格式0或1资源的第一组PUCCH资源集合。具体地，所述终端可以根据下行传输的传输模式确定HARQ-ACK的反馈比特数，举例而言，如果下行传输不使用基于码块组(Code Block Group，CBG)的传输且为单码字传输，则每个下行传输对应1比特HARQ-ACK反馈，2个下行传输对应2比特HARQ-ACK反馈；如果下行传输使用基于CBG的传输和/或使用多码字传输，则每个下行传输 对应超过1比特HARQ-ACK反馈，2个下行传输对应超过2比特HARQ-ACK反馈；当然，如果每组中包含超过2个下行传输，则不论是否使用CBG以及不论是否使用多码字传输，都存在超过2比特HARQ-ACK反馈。
可选地，所述下行传输包括以下任意一项或多项：
PDSCH；
指示下行SPS资源释放的PDCCH(又可称为SPS PDSCH释放)。
该实施例中，所述下行传输可以为PDSCH，也可以为指示下行SPS资源释放的PDCCH。所述至少两个下行传输可以包括PDSCH和/或指示下行SPS资源释放的PDCCH，即所述至少两个下行传输可以仅包括PDSCH，也可以仅包括指示下行SPS资源释放的PDCCH，还可以包括PDSCH和指示下行SPS资源释放的PDCCH。
可选地，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
该实施例中，当所述行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为所述指示下行SPS资源释放的PDCCH本身。
可选地，所述时间单元为以下的任意一种：
一个时隙；
一个子帧；
一个微时隙。当然，也不排除将时间单元定义为其他长度，例如N个符号等。
本实施例中，所述PUCCH发送方法根据下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源是否存在重叠，确定多个下行传输的HARQ-ACK是否在一个时隙中的同一个PUCCH中传输，从而灵活的支持可以在一个时隙中通过多个互不重叠的PUCCH传输不同下行传输的HARQ-ACK反馈信息，能够实现快速的HARQ-ACK反馈，降低HARQ-ACK反馈时延，提高系统传输效率。
以下将结合具体示例对本公开提供的PUCCH发送方法进行详细描述，需要说明的是，以下示例均以下行传输为PDSCH为例进行举例说明，但不以此为限，同样适用于下行传输为指示下行SPS资源释放的PDCCH的情况， 以及下行传输包括PDSCH和指示下行SPS资源释放的PDCCH的情况。
假设高层信令预先为终端配置了至少一个PUCCH资源集合，每个PUCCH资源集合中包括8个PUCCH资源，可以在PDCCH所使用的DCI中使用3比特PRI指示8个PUCCH资源中的一个，3比特PRI和8个PUCCH资源的对应关系如下表1所示。
表1：
PRI指示域与一个PUCCH资源集合中的多个PUCCH资源之间的对应关系表
PRI PUCCH资源
'000' PUCCH资源集合中的第一个PUCCH资源
'001' PUCCH资源集合中的第二个PUCCH资源
'010' PUCCH资源集合中的第三个PUCCH资源
'011' PUCCH资源集合中的第四个PUCCH资源
'100' PUCCH资源集合中的第五个PUCCH资源
'101' PUCCH资源集合中的第六个PUCCH资源
'110' PUCCH资源集合中的第七个PUCCH资源
'111' PUCCH资源集合中的第八个PUCCH资源
示例一：
根据每个PDSCH对应的反馈时序(K1)，确定多个PDSCH都在同一个时隙中进行HARQ-ACK反馈。例如时隙n中的PDSCH对应的K1＝4，则确定在时隙n+4中进行HARQ-ACK反馈；时隙n+1中的PDSCH对应的K1＝3，则确定在时隙n+1+3＝n+4中进行HARQ-ACK反馈；时隙n+2中的PDSCH对应的K1＝2，则确定在时隙n+2+2＝n+4中进行HARQ-ACK反馈；时隙n+3中的PDSCH对应的K1＝1，则确定在时隙n+3+1＝n+4中进行HARQ-ACK反馈。
假设在时隙n中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“000”，C-DAI＝1；在时隙n+1中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“010”，C-DAI＝1；在时隙n+2中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“100”，C-DAI＝1；在时隙n+3中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“111”，C-DAI＝1；其中，PRI为“000”、“010”、“100”和“111”时所指示的PUCCH资源在时域上互不重叠。
终端接收上述PDSCH传输，并根据每个PDSCH对应的PDCCH所使用 的DCI中的PRI指示的PUCCH资源，确定每个PDSCH对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源之间在时域上互不重叠，可以确定每个PDSCH为一组下行传输进行HARQ-ACK反馈，终端为每组PDSCH分别确定用于传输HARQ-ACK的PUCCH资源，并在相应地PUCCH资源上进行HARQ-ACK传输。具体地，终端可以在每个PDSCH对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源上发送该PDSCH的HARQ-ACK。
如图3所示，PUCCH资源301、302、303、304分别为在时隙n、n+1、n+2、n+3上传输的PDSCH对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，终端可以在PUCCH资源301上发送在时隙n上传输的PDSCH的HARQ-ACK，在PUCCH资源302上传输在时隙n+1上传输的PDSCH的HARQ-ACK，在PUCCH资源303上传输在时隙n+2上传输的PDSCH的HARQ-ACK，在PUCCH资源304上传输在时隙n+3上传输的PDSCH的HARQ-ACK。相应地，基站根据上述相同的方式确定传输HARQ-ACK的PUCCH资源，并在确定的PUCCH资源上接收相应HARQ-ACK。
在根据PRI确定PUCCH资源之前，终端需要从所述至少一个PUCCH资源集合中选择一个PUCCH资源集合，然后根据每个下行传输对应的PDCCH所使用的DCI中的PRI在选择的PUCCH资源集合中确定用于传输每个下行传输的HARQ-ACK的PUCCH资源。
如果当高层信令仅为所述终端配置一个PUCCH资源集合时，所述终端直接选择该一个PUCCH资源集合；当高层信令为所述终端配置至少两个PUCCH资源集合时，所述终端根据下行传输的HARQ-ACK的反馈比特数从所述至少两个PUCCH资源集合中选择一个PUCCH资源集合。所述终端可以根据PDSCH的传输模式确定HARQ-ACK的反馈比特数，举例而言，如果PDSCH不使用基于CBG的传输，则每个PDSCH对应1到2比特HARQ-ACK反馈，选择第一个PUCCH资源集合。如果PDSCH使用基于CBG的传输，则每个PDSCH对应超可能超过2比特HARQ-ACK反馈，需要根据每组PDSCH对应的HARQ-ACK的反馈比特数选择一个PUCCH资源集合。相应地，基站可以根据上述相同的方式确定一个PUCCH资源集合，并在选择的PUCCH资源集合中确定用于接收HARQ-ACK的PUCCH资源。
如果使用dynamic codebook，则每个PDSCH还会对应一个DAI值，当单载波时，仅为C-DAI，因为是一对一反馈(即一个PDSCH单独进行HARQ-ACK反馈)，则C-DAI值总是1；如果使用semi-static codebook，则仅当PDSCH由fallback DCI调度时存在DAI值，其他情况不存在DAI值。
该示例一中，上述PDSCH对应的PDCCH所使用的DCI中的PRI可以由基站根据预期的传输方式进行设置，此外，基站还可以根据预期的传输方式设置DAI值。例如，当基站想要将每一个PDSCH划分为一组，将其HARQ-ACK反馈放在一个独立的PUCCH上传输，可以将PDSCH对应的PDCCH所使用的DCI中的PRI设置为如3所示。在设置PRI之前，基站还需要先从为终端配置的至少一个PUCCH资源集合中选择一个PUCCH资源集合，然后在选择的PUCCH资源集合中进行PRI指示。基站可以按照上述终端选择PUCCH资源集合相同的方式选择一个PUCCH资源集合，不再赘述。即PRI所指示的资源是选择的PUCCH资源集合中的资源，这样，当终端和基站按照同样的规则选择PUCCH资源集合时，保证对PUCCH资源集合的理解一致，从而保证对PRI指示的资源的理解一致。
示例二：
根据每个PDSCH对应的反馈时序(K1)，确定多个PDSCH都在同一个时隙中进行HARQ-ACK反馈。例如时隙n中的PDSCH对应的K1＝4，则确定在时隙n+4中进行HARQ-ACK反馈；时隙n+1中的PDSCH对应的K1＝3，则确定在时隙n+1+3＝n+4中进行HARQ-ACK反馈；时隙n+2中的PDSCH对应的K1＝2，则确定在时隙n+2+2＝n+4中进行HARQ-ACK反馈；时隙n+3中的PDSCH对应的K1＝1，则确定在时隙n+3+1＝n+4中进行HARQ-ACK反馈。
假设在时隙n中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“000”；在时隙n+1中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“000”或“001”(PRI为“001”指示的PUCCH资源与PRI为“000”指示的PUCCH资源存在重叠)；在时隙n+2中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“011”；在时隙n+3中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“011”或“111”(PRI为“111”指示的PUCCH 资源与PRI为“011”指示的PUCCH资源存在重叠)；其中，PRI为“000”或“001”指示的PUCCH资源，与PRI为“011”或“111”时所指示的PUCCH资源在时域上互不重叠。
终端接收上述PDSCH传输，并根据每个PDSCH对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，将对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源之间在时域上存在重叠的PDSCH分为一组，将对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源之间在时域上不存在重叠的PDSCH分为不同组，即将在时隙n中传输的PDSCH和在时隙n+1中传输的PDSCH划分为一组，将在时隙n+2中传输的PDSCH和在时隙n+3中传输的PDSCH划分为一组。然后针对每组分别进行HARQ-ACK反馈。
如图4所示，图4中所示的在时隙n+1中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“001”，在时隙n+3中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“111”。PUCCH资源401、402、403、404分别为在时隙n、n+1、n+2、n+3上传输的PDSCH对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，终端可以在PUCCH资源402上发送在时隙n上传输的PDSCH的HARQ-ACK和在时隙n+1上传输的PDSCH的HARQ-ACK，在PUCCH资源404上发送在时隙n+2上传输的PDSCH的HARQ-ACK和在时隙n+3上传输的PDSCH的HARQ-ACK。相应地，基站根据上述相同的方式确定传输HARQ-ACK的PUCCH资源，并在确定的PUCCH资源上接收相应HARQ-ACK。
在根据PRI确定PUCCH资源之前，终端需要从所述至少一个PUCCH资源集合中选择一个PUCCH资源集合，然后根据每个下行传输对应的PDCCH所使用的DCI中的PRI在选择的PUCCH资源集合中确定用于传输每个下行传输的HARQ-ACK的PUCCH资源。如果PDSCH不使用基于CBG的传输且为单码字，则每个PDSCH对应1比特HARQ-ACK反馈，每组PDSCH对应2比特HARQ-ACK反馈，选择第一个PUCCH资源集合。如果PDSCH不使用基于CBG的传输且为多码字或者使用基于CBG的传输，则每个PDSCH对应超可能超过1比特HARQ-ACK反馈，每组PDSCH对应超可能超过2比特HARQ-ACK反馈，需要根据每组PDSCH对应的HARQ-ACK的 反馈比特数选择一个PUCCH资源集合。
假设使用dynamic HARQ-ACK codebook传输时，每个PDSCH按照对应的DAI值进行排序(实际的PDSCH传输顺序需要根据调度其的PDCCH的传输时域位置以及调度时序确定，可能不是图4中的顺序，但HARQ-ACK反馈是按照DAI进行排序的，为了方便，本实施例中以DAI的顺序对PDSCH进行排序)，每组中的PDSCH对应的C-DAI是顺序增加的，由于是单载波，最后一个C-DAI等同于T-DAI，即表达了该组中总计调度的PDSCH个数，根据C-DAI可以进行一组内的HARQ-ACK排序以及确定一组PDSCH对应的HARQ-ACK的比特数，从而按照产生的HARQ-ACK在对应的PUCCH资源上传输；如果使用semi-static codebook传输，则仅当PDSCH由fallback DCI调度时存在DAI值，其他情况不存在DAI值。
该示例二中，上述PDSCH对应的PDCCH所使用的DCI中的PRI可以由基站根据预期的传输方式进行设置，此外，基站还可以根据预期的传输方式设置DAI值。例如，当基站想要在时隙n中传输的PDSCH和在时隙n+1中传输的PDSCH划分为一组，将在时隙n+2中传输的PDSCH和在时隙n+3中传输的PDSCH划分为一组，可以将在时隙n中传输的PDSCH对应的PDCCH所使用的DCI中的PRI，以及在时隙n+1中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为指示存在重叠的PUCCH资源，例如可以将在时隙n中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为“000”，将在时隙n+1中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为“000”或“001”(PRI为“001”指示的PUCCH资源与PRI为“000”指示的PUCCH资源存在重叠)；可以将在时隙n+2中传输的PDSCH对应的PDCCH所使用的DCI中的PRI，以及在时隙n+3中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为指示存在重叠的PUCCH资源，且保证在时隙n和n+1中传输的PDSCH分别对应的PDCCH所使用的DCI中的PRI，以及在时隙n+2和n+3中传输的PDSCH分别对应的PDCCH所使用的DCI中的PRI设置为指示不存在重叠的PUCCH资源，例如将在时隙n+2中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为“011”，将在时隙n+3中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为 “011”或“111”(PRI为“111”指示的PUCCH资源与PRI为“011”指示的PUCCH资源存在重叠，且PRI为“111”和“011”指示的PUCCH资源，与PRI为“000”和“001”指示的PUCCH资源之间不重叠)。可以理解的是，由于PRI为“001”指示的PUCCH资源与PRI为“000”指示的PUCCH资源存在重叠，基站可以在设置PRI时灵活改变一组PDSCH所对应的PUCCH资源。例如基站在时隙n+1中确定“000”对应的资源已经被其他终端占用，则可以改变第一组PDSCH在“001”对应的PUCCH资源上进行HARQ-ACK反馈。在设置PRI之前，基站需要先从为终端配置的至少一个PUCCH资源集合中选择一个PUCCH资源集合，然后在选择的PUCCH资源集合中进行PRI指示。基站可以按照上述终端选择PUCCH资源集合相同的方式选择一个PUCCH资源集合，不再赘述。即PRI所指示的资源是选择的PUCCH资源集合中的资源，这样，当终端和基站按照同样的规则选择PUCCH资源集合时，保证对PUCCH资源集合的理解一致，从而保证对PRI指示的资源的理解一致。
示例三：
根据每个PDSCH对应的反馈时序(K1)，确定多个PDSCH都在同一个时隙中进行HARQ-ACK反馈。例如时隙n中的PDSCH对应的K1＝4，则确定在时隙n+4中进行HARQ-ACK反馈；时隙n+1中的PDSCH对应的K1＝3，则确定在时隙n+1+3＝n+4中进行HARQ-ACK反馈；时隙n+2中的PDSCH对应的K1＝2，则确定在时隙n+2+2＝n+4中进行HARQ-ACK反馈；时隙n+3中的PDSCH对应的K1＝1，则确定在时隙n+3+1＝n+4中进行HARQ-ACK反馈。
假设在时隙n中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“000”；在时隙n+1中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“001”(PRI为“001”指示的PUCCH资源与PRI为“000”指示的PUCCH资源存在重叠)；在时隙n+2中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“010”(PRI为“010”指示的PUCCH资源与PRI为“001”指示的PUCCH资源存在重叠)；在时隙n+3中传输的PDSCH对应的PDCCH所使用的DCI中的PRI为“111”(PRI为“111”指示的PUCCH资源与PRI 为“000”、“001”和“010”指示的PUCCH资源都不存在重叠)。
终端接收上述PDSCH传输，并根据每个PDSCH对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，将对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源之间在时域上存在重叠的PDSCH分为一组，将对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源之间在时域上不存在重叠的PDSCH分为不同组，即将在时隙n、n+1和n+2中传输的PDSCH划分为一组，将在时隙n+3中传输的PDSCH划分为一组。然后针对每组分别进行HARQ-ACK反馈。
如图5所示，PUCCH资源501、502、503、504分别为在时隙n、n+1、n+2、n+3上传输的PDSCH对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，PUCCH资源501与PUCCH资源502存在重叠，PUCCH资源502与PUCCH资源503存在重叠，但PUCCH资源503与PUCCH资源501不存在重叠，所述终端将在时隙n、n+1、n+2上传输的PDSCH分为同一组，在PUCCH资源503上传输这三个PDSCH的HARQ-ACK反馈。PUCCH资源504与PUCCH资源501、502和503之间均不存在重叠，终端将在时隙n+3上传输的PDSCH与在时隙n、n+1、n+2上传输的PDSCH分为不同组，在PUCCH资源504上传输时隙n+3中的PDSCH的HARQ-ACK反馈。
在根据PRI确定PUCCH资源之前，终端需要从所述至少一个PUCCH资源集合中选择一个PUCCH资源集合，然后根据每个下行传输对应的PDCCH所使用的DCI中的PRI在选择的PUCCH资源集合中确定用于传输每个下行传输的HARQ-ACK的PUCCH资源。如果PDSCH不使用基于CBG的传输且为单码字，则每个PDSCH对应1比特HARQ-ACK反馈，第一组PDSCH对应3比特HARQ-ACK反馈，选择第二个PUCCH资源集合(假设第二个PUCCH资源集合用于承载3到N1比特信息)，第二组PDSCH对应1比特HARQ_ACK反馈，选择第一个PUCCH资源集合。如果PDSCH不使用基于CBG的传输且为多码字或者使用基于CBG的传输，则每个PDSCH对应超可能超过1比特HARQ-ACK反馈，每组PDSCH对应超可能超过2比特HARQ-ACK反馈，需要根据每组PDSCH对应的HARQ-ACK的反馈比特数选择一个PUCCH资源集合。
假设使用dynamic HARQ-ACK codebook传输时，每个PDSCH按照对应的DAI值进行排序(实际的PDSCH传输顺序需要根据调度其的PDCCH的传输时域位置以及调度时序确定，可能不是图4中的顺序，但HARQ-ACK反馈是按照DAI进行排序的，为了方便，本实施例中以DAI的顺序对PDSCH进行排序)，每组中的PDSCH对应的C-DAI是顺序增加的，由于是单载波，每组中的最后一个C-DAI等同于T-DAI，即表达了该组中总计调度的PDSCH个数，根据C-DAI可以进行一组内的HARQ-ACK排序以及确定一组PDSCH对应的HARQ-ACK的比特数，从而按照产生的HARQ-ACK在对应的PUCCH资源上传输；如果使用semi-static codebook传输，则仅当PDSCH由fallback DCI调度时存在DAI值，其他情况不存在DAI值。
该示例三中，上述PDSCH对应的PDCCH所使用的DCI中的PRI可以由基站根据预期的传输方式进行设置，此外，基站还可以根据预期的传输方式设置DAI值。例如，当基站想要在时隙n、n+1和n+2中传输的PDSCH划分为一组，将在时隙n+3中传输的PDSCH划分为一组，可以将在时隙n、n+1和n+2中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为指示存在重叠的PUCCH资源，例如可以将在时隙n中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为“000”，将在时隙n+1中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为“001”(PRI为“001”指示的PUCCH资源与PRI为“000”指示的PUCCH资源存在重叠)，将在时隙n+2中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为“010”(PRI为“010”指示的PUCCH资源与PRI为“001”指示的PUCCH资源存在重叠)；可以将在时隙n+3中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为与在时隙n、n+1和n+2中传输的PDSCH分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不重叠的PUCCH资源，例如将在时隙n+3中传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为“111”(PRI为“111”指示的PUCCH资源，与PRI为“000”、“001”和“010”指示的PUCCH资源之间不重叠)。可以理解的是，由于PRI为“001”指示的PUCCH资源与PRI为“000”指示的PUCCH资源存在重叠，PRI为“010”指示的PUCCH资源与PRI为“001”指示的PUCCH资源存在重叠，基站可 以在设置PRI时灵活改变一组PDSCH所对应的PUCCH资源。例如基站在时隙n+1中确定“000”对应的资源已经被其他终端占用，则可以改变第一组PDSCH在“001”对应的PUCCH资源上进行HARQ-ACK反馈，在时隙n+2中确定“001”对应的资源不足以用于传输3比特HARQ-ACK，则可以改变第一组PDSCH在“010”对应的PUCCH资源上进行HARQ-ACK反馈。在设置PRI之前，基站需要先从为终端配置的至少一个PUCCH资源集合中选择一个PUCCH资源集合，然后在选择的PUCCH资源集合中进行PRI指示。基站可以按照上述终端选择PUCCH资源集合相同的方式选择一个PUCCH资源集合，不再赘述。即PRI所指示的资源是选择的PUCCH资源集合中的资源，这样，当终端和基站按照同样的规则选择PUCCH资源集合时，保证对PUCCH资源集合的理解一致，从而保证对PRI指示的资源的理解一致。
示例四：
假设根据每个PDSCH对应的K1，确定多个PDSCH都在同一个时隙中进行HARQ-ACK反馈。例如时隙n中的PDSCH对应的K1＝8，则确定在时隙n+8中进行HARQ-ACK反馈，时隙n+1中的PDSCH对应的K1＝7，则确定在时隙n+1+7＝n+8中进行HARQ-ACK反馈，时隙n+2中的PDSCH对应的K1＝6，则确定在时隙n+2+6＝n+8中进行HARQ-ACK反馈，以此类推。
假设基站想要将在时隙n至(n+3)传输的4个PDSCH分为一组，将在时隙(n+4)至(n+7)传输的4个PDSCH分为一组，并分别在两个PUCCH上传输两组PDSCH的HARQ-ACK，这两个PUCCH在同一个时隙中，但互相之间在时域上不重叠。则基站通过合理的设置DAI以及PRI可以实现该传输方式；对于每组PDSCH，基站根据该组PDSCH对应的HARQ-ACK总比特数在多个PUCCH资源集合中选择一个，然后按照下述方式设置PRI从该选择的一个PUCCH集合中的8个PUCCH资源中指示一个PUCCH资源给终端。
一种实现方式，基站可以将在时隙n至(n+3)传输的4个PDSCH对应的PDCCH所使用的DCI中的PRI设置为相同的值，例如都设置为“000”或都设置为“001”，将在时隙(n+4)至(n+7)传输的4个PDSCH对应的PDCCH所使用的DCI中的PRI设置为相同的值，但不同于在时隙n至(n+3)传输 的4个PDSCH对应的PDCCH所使用的DCI中的PRI的值，例如都设置为“011”或“111”等。此时假设PRI为“000”或“001”对应的PUCCH资源，与PRI为“011”或“111”对应的PUCCH资源在时域上不重叠，如图6所示。则由于在时隙n至(n+3)传输的4个PDSCH对应的PDCCH所使用的DCI中的PRI指示相同的PUCCH资源，显然这4个PDSCH对应的PUCCH资源相互重叠，属于同一组；同理，由于在时隙(n+4)至(n+7)传输的4个PDSCH对应的PDCCH所使用的DCI中的PRI指示相同的PUCCH资源，显然这4个PDSCH对应的PUCCH资源相互重叠，属于同一组，且在时隙n至(n+3)传输的4个PDSCH对应的PDCCH所使用的DCI中的PRI对应的PUCCH资源与在时隙(n+4)至(n+7)传输的4个PDSCH对应的PDCCH所使用的DCI中的PRI对应的PUCCH资源之间在时域互不重叠，说明可以分别在不同的PUCCH上进行HARQ-ACK传输，如图6所示。终端可以根据PRI指示的PUCCH资源确定分组，然后在PRI为“000”指示的PUCCH资源601上传输在时隙n至(n+3)传输的4个PDSCH的HARQ-ACK，在PRI为“011”指示的PUCCH资源602上传输在时隙(n+4)至(n+7)传输的4个PDSCH的HARQ-ACK。
另一种实现方式，同一组中的PDSCH对应的PDCCH所使用的DCI中的PRI值也可以是不同，只要满足同一组中PDSCH对应的PDCCH所使用的DCI中的PRI指示的不同的PUCCH资源在时域上存在重叠，且不同组中PDSCH对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上互不重叠即可。例如，如图7所示，假设PRI为“000”和“001”对应的PUCCH资源在时域上存在重叠，则这两个状态都可以用于同一组PDSCH中的PRI指示，用于更改该组PDSCH对应的PUCCH资源；假设PRI为“011”和“111”对应的PUCCH资源在时域上存在重叠，则这两个状态都可以用于同一组PDSCH中的PRI指示，用于更改该组PDSCH对应的PUCCH资源；假设PRI为“000”或“001”对应的PUCCH资源，与PRI为“011”或“111”对应的PUCCH资源在时域上不重叠。基站可以将在时隙(n+4)至(n+7)传输的PDSCH对应的PDCCH所使用的DCI中的PRI设置为指示，与在时隙n至(n+3)传输的PDSCH对应的PDCCH所使用的DCI中的PRI所指示的 PUCCH资源在时域上不重叠的PUCCH资源。从而实现将在时隙n至(n+3)传输的4个PDSCH分为一组，将在时隙(n+4)至(n+7)传输的4个PDSCH分为一组。对于相同组内的PDSCH对应的PDCCH所使用的DCI中的PRI，可以设置为相同的值，也可以设置为不同的值，只要相同组内的PDSCH对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源存在重叠。例如，基站可以将在时隙n至(n+3)传输的4个PDSCH对应的PDCCH所使用的DCI中的PRI设置为不同的值，但因为“000”和“001”对应的PUCCH资源在时域上存在重叠，则可以判断在时隙n至(n+3)传输的4个PDSCH为同一组，传输该组PDSCH的PUCCH资源为根据该组PDSCH对应的PDCCH中最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，即PRI为“001”指示的PUCCH资源。同样地，基站可以将在时隙(n+4)至(n+7)传输的4个PDSCH对应的PDCCH所使用的DCI中的PRI设置为不同的值，但因为“011”和“111”对应的PUCCH资源在时域上存在重叠，则可以判断在时隙(n+4)至(n+7)传输的4个PDSCH虽然PRI不同，但还是属于同一组，在同一个PUCCH上进行HARQ-ACK反馈，传输该组PDSCH的HARQ-ACK的PUCCH资源为该组PDSCH对应的PDCCH中最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，即第8个PDSCH对应的PRI指示的PUCCH资源，即PRI为“111”对应的PUCCH资源。由于在时隙n至(n+3)传输的4个PDSCH对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，与在时隙(n+4)至(n+7)传输的4个PDSCH对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不同，则可以根据PRI自然将8个PDSCH分为两组，分别在不同的PUCCH上进行HARQ-ACK反馈。如图7所示，PUCCH资源701为PRI为“000”指示的PUCCH资源，PUCCH资源702为PRI为“001”指示的PUCCH资源，PUCCH资源703为PRI为“011”指示的PUCCH资源，PUCCH资源704为PRI为“111”指示的PUCCH资源。终端可以根据PRI指示的PUCCH资源确定分组，然后在PRI为“001”指示的PUCCH资源702上传输在时隙n至(n+3)传输的4个PDSCH的HARQ-ACK，在PRI为“111”指示的PUCCH资源704上传输在时隙(n+4)至(n+7)传输的4个PDSCH的HARQ-ACK。
其中，假设使用dynamic HARQ-ACK codebook传输时，每个PDSCH按照对应的DAI值进行排序(实际的PDSCH传输顺序需要根据调度其的PDCCH的传输时域位置以及调度时序确定，可能不是图中的顺序，但HARQ-ACK反馈是按照DAI进行排序的，为了方便，本实施例中以DAI的顺序对PDSCH进行排序)，每组PDSCH中的C-DAI是顺序增加的，由于是单载波，每组中的最后一个C-DAI等同于T-DAI，即表达了该组中总计调度的PDSCH个数，根据C-DAI可以进行一组内的HARQ-ACK排序以及确定一组PDSCH对应的HARQ-ACK的比特数，从而按照产生的HARQ-ACK在对应的PUCCH资源上传输。如果使用semi-static codebook传输，则仅当PDSCH由fallback DCI调度时存在DAI值，其他情况不存在DAI值。
示例五：
如果配置了多个载波，与上述示例中单载波不同的是，多个载波时，如果使用dynamic codebook，则每个PDSCH除了对应C-DAI外，还对应T-DAI，2比特T-DAI采用模4的方式表达到当前传输时刻为止，共计调度的下行传输的总数。这样一来，存在多对一映射，即2比特T-DAI＝2可以表达2或6、10…个PDSCH，终端可以根据已经接收到的PDSCH个数推断出此时为2还是6还是10…，然后根据T-DAI的值可以确定一组PDSCH对应的HARQ-ACK比特数，C-DAI则在一组内按照先频域后时域顺序进行累计。可以将不同载波上，对应的PDCCH所使用的DCI中的PRI所指示的PUCCH资源存在重叠的PDSCH划分为同一组，例如如图8所示，在载波1的时隙n和n+1上传输的PDSCH和在载波2的时隙n和n+1上传输的PDSCH对应的PDCCH所使用的DCI中的PRI均为“000”，其指示的PUCCH资源为PUCCH资源801；在载波1的时隙n+2和n+3上传输的PDSCH和在载波2的时隙n+2和n+3上传输的PDSCH对应的PDCCH所使用的DCI中的PRI均为“001”，其指示的PUCCH资源为PUCCH资源802；在载波1的时隙n+4至n+6上传输的PDSCH和在载波2的时隙n+4至n+6上传输的PDSCH对应的PDCCH所使用的DCI中的PRI均为“011”，其指示的PUCCH资源为PUCCH资源803；在载波1的时隙n+7上传输的PDSCH和在载波2的时隙n+7上传输的PDSCH对应的PDCCH所使用的DCI中的PRI均为“111”，其指示的PUCCH资源 为PUCCH资源804。其中，PUCCH资源801与PUCCH资源802存在重叠，PUCCH资源803与PUCCH资源804存在重叠，且PUCCH资源801或PUCCH资源802，和PUCCH资源803或PUCCH资源804之间不存在重叠。因此，如图8所示，可以将载波在载波1的时隙n和n+3上传输的PDSCH和在载波2的时隙n和n+3上传输的PDSCH分为同一组，在PRI为“001”指示的PUCCH资源上传输该组PDSCH的HARQ-ACK；将载波在载波1的时隙n+4和n+7上传输的PDSCH和在载波2的时隙n+4和n+7上传输的PDSCH分为同一组，在PRI为“111”指示的PUCCH资源上传输该组PDSCH的HARQ-ACK。
需要说明的是，上述示例仅以一个PUCCH资源集合中包括8个PUCCH资源为例，实际应用中，一个PUCCH资源集合包括的PUCCH资源个数可以小于8个，也可以大于8个。当一个PUCCH资源集合包括小于8个PUCCH资源时，PRI的比特数也可以进行相应的调整，例如当包括4个PUCCH资源时，PRI的比特数为2比特。当一个PUCCH资源集合包括大于8个PUCCH资源时，则需要通过PRI结合PDCCH的控制信道单元索引(Control Channel Elements index，CCE index)进行PUCCH资源指示。
可以理解的是，在本公开一些实施例中，当配置了PUCCH组(group)时(即支持PUCCH在一个辅成员载波(Secondary Component Carrier，SCC)上传输时，将终端的多个载波分为至少两个载波组，每个载波组中有一个载波可以传输PUCCH，不同载波组中的下行传输在该载波组中的传输PUCCH的载波上进行独立的上行控制信息(Uplink Control Information，UCI)传输)，本公开实施例在每个PUCCH组中独立使用。
参考图9，图9本公开实施例提供PUCCH接收方法的流程图，如图9所示，所述PUCCH接收方法的执行主体为基站，具体包括以下步骤：
步骤901、发送至少两个下行传输，所述至少两个下行传输的HARQ-ACK在同一个时间单元中传输。
步骤902、根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
步骤903、在确定的所述PUCCH资源上接收对应的下行传输的 HARQ-ACK。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
可选地，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
可选地，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
可选地，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
可选地，所述下行传输包括以下任意一项或多项：
物理下行链路共享信道PDSCH；
指示下行半持续调度SPS资源释放的PDCCH。
可选地，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所 述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
可选地，所述时间单元为以下的任意一种：
一个时隙；
一个子帧；
一个微时隙。
需要说明的是，本实施例可以为与图2所示的实施例对应的基站侧实施例，所述PUCCH接收的原理与PUCCH发送的原理类似，具体的过程请参见图2所示的实施例的描述，此处不再赘述。
本公开实施例中还提供了一种终端，由于终端解决问题的原理与本公开实施例中PUCCH发送方法相似，因此该终端的实施可以参见PUCCH发送方法的实施，重复之处不再敷述。
参见图10，本公开实施例还提供了一种终端1000，该终端1000包括处理器1001和收发机1002，其中，
所述收发机1002可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，所述收发机1002用于在所述处理器1001的控制下接收和发送数据；
所述处理器1001或者所述收发机1002，用于接收至少两个下行传输，所述至少两个下行传输的混合自动重传请求确认HARQ-ACK在同一个时间单元中传输；
所述处理器1001，还用于根据所述至少两个下行传输分别对应的物理下行控制信道PDCCH所使用的下行控制信息DCI中的物理上行控制信道PUCCH资源指示域PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
所述处理器1001或者所述收发机1002，还用于在确定的所述PUCCH资源上发送对应的下行传输的HARQ-ACK。
可选地，所述处理器1001具体用于：
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
可选地，所述处理器1001具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
可选地，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
可选地，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
可选地，所述处理器1001具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
可选地，所述处理器1001具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源 时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
可选地，所述处理器1001具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
可选地，所述下行传输包括以下任意一项或多项：
物理下行链路共享信道PDSCH；
指示下行半持续调度SPS资源释放的PDCCH。
可选地，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
可选地，所述时间单元为以下的任意一种：
一个时隙；
一个子帧；
一个微时隙。
需要说明的是，本公开实施例提供的终端能够实现图2至图8的方法实施例中的各个过程，其实现原理和技术效果类似，本实施例此处不再赘述。
本公开实施例中还提供了一种基站，由于基站解决问题的原理与本公开实施例中PUCCH传输接收相似，因此该基站的实施可以参见PUCCH接收方法的实施，重复之处不再敷述。
参见图11，本公开实施例还提供了一种基站1100，该基站1100包括处理器1101和收发机1102，其中，
所述收发机1102可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，所述收发机1102用于在所述处理器1101的控制下接收和发送数据；
所述处理器1101或者所述收发机1102，用于发送至少两个下行传输，所述至少两个下行传输的HARQ-ACK在同一个时间单元中传输；
所述处理器1101，还用于根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
所述处理器1101或者所述收发机1102，还用于在确定的所述PUCCH资源上接收对应的下行传输的HARQ-ACK。
可选地，所述处理器1101具体用于：
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
可选地，所述处理器1101具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
可选地，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
可选地，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
可选地，所述处理器1101具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
可选地，述处理器1101具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
可选地，所述处理器1101具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
可选地，所述下行传输包括以下任意一项或多项：
物理下行链路共享信道PDSCH；
指示下行半持续调度SPS资源释放的PDCCH。
可选地，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
可选地，所述时间单元为以下的任意一种：
一个时隙；
一个子帧；
一个微时隙。
需要说明的是，本公开实施例提供的基站能够实现图2至图8的方法实施例中的各个过程，其实现原理和技术效果类似，本实施例此处不再赘述。
如图12所示，图12所示的终端1200包括：至少一个处理器1201、存储器1202、至少一个网络接口1204和用户接口1203。终端1200中的各个组件通过总线系统1205耦合在一起。可理解，总线系统1205用于实现这些组件之间的连接通信。总线系统1205除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图12中将各种总线都标为总线系统1205。
其中，用户接口1203可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球(trackball)、触感板或者触摸屏等)。
可以理解，本公开实施例中的存储器1202可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开实施例描述的系统和方法的存储器1202旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器1202保存了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统12021和应用程序12022。
其中，操作系统12021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序12022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序12022中。
在本公开的一个实施例中，通过调用存储器1202保存的程序或指令，具体的，可以是应用程序12022中保存的程序或指令，执行时实现PUCCH发送方法中的各个步骤。
本公开实施例提供的终端，可以执行上述PUCCH发送方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
如图13所示，图13所示的基站1300包括：至少一个处理器1301、存储器1302、至少一个网络接口1304和用户接口1303。基站1300中的各个组件通过总线系统1305耦合在一起。可理解，总线系统1305用于实现这些组件之间的连接通信。总线系统1305除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图13中将各种总线都标为总线系统1305。
其中，用户接口1303可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球(trackball)、触感板或者触摸屏等)。
可以理解，本公开实施例中的存储器1302可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM， ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开实施例描述的系统和方法的存储器1302旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器1302保存了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统13021和应用程序13022。
其中，操作系统13021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序13022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序13022中。
在本公开的一个实施例中，通过调用存储器1302保存的程序或指令，具体的，可以是应用程序13022中保存的程序或指令，执行时实现PUCCH接收方法中的各个步骤。
本公开实施例提供的基站，可以执行上述PUCCH接收方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
本公开实施例还提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时可以实现本公开实施例提供的PUCCH发送方法和PUCCH接收方法中的步骤。
参见图14，本公开还提供一种终端1400，如图14所示，所述终端1400包括：
接收模块1401，用于接收至少两个下行传输，所述至少两个下行传输的HARQ-ACK在同一个时间单元中传输；
确定模块1402，还用于根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
发送模块1403，还用于在确定的所述PUCCH资源上发送对应的下行传输的HARQ-ACK。
可选地，所述确定模块1402具体用于：
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
可选地，所述确定模块1402具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
可选地，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
可选地，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
可选地，所述确定模块1402具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
可选地，所述确定模块1402具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI 指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
可选地，所述确定模块1402具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
可选地，所述下行传输包括以下任意一项或多项：
物理下行链路共享信道PDSCH；
指示下行半持续调度SPS资源释放的PDCCH。
可选地，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
可选地，所述时间单元为以下的任意一种：
一个时隙；
一个子帧；
一个微时隙。
需要说明的是，本公开实施例提供的终端能够实现图2至图8的方法实施例中的各个过程，其实现原理和技术效果类似，本实施例此处不再赘述。
参见图15，本公开还提供一种基站1500，如图15所示，基站1500包括：
发送模块1501，用于发送至少两个下行传输，所述至少两个下行传输的HARQ-ACK在同一个时间单元中传输；
确定模块1502，用于根据所述至少两个下行传输分别对应的PDCCH所 使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
接收模块1503，用于在确定的所述PUCCH资源上接收对应的下行传输的HARQ-ACK。
可选地，所述确定模块1502具体用于：
根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
可选地，所述确定模块1502具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
可选地，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
可选地，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
可选地，所述确定模块1502具体用于：
当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
可选地，所述确定模块1502具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
可选地，所述确定模块1502具体用于：
将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
可选地，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
可选地，所述下行传输包括以下任意一项或多项：
物理下行链路共享信道PDSCH；
指示下行半持续调度SPS资源释放的PDCCH。
可选地，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
可选地，所述时间单元为以下的任意一种：
一个时隙；
一个子帧；
一个微时隙。
需要说明的是，本公开实施例提供的基站能够实现图2至图8的方法实施例中的各个过程，其实现原理和技术效果类似，本实施例此处不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露方法和装置，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述是本公开的可选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (55)

  1. 一种物理上行控制信道PUCCH发送方法，应用于终端，包括：
    接收至少两个下行传输，所述至少两个下行传输的混合自动重传请求确认HARQ-ACK在同一个时间单元中传输；
    根据所述至少两个下行传输分别对应的物理下行控制信道PDCCH所使用的下行控制信息DCI中的PUCCH资源指示域PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
    在确定的所述PUCCH资源上发送对应的下行传输的HARQ-ACK。
  2. 如权利要求1所述的发送方法，其中，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
    根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
  3. 如权利要求2所述的发送方法，其中，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
    当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
  4. 如权利要求3所述的发送方法，其中，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
    或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
  5. 如权利要求4所述的发送方法，其中，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中 PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
    当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
  6. 如权利要求2所述的发送方法，其中，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
    当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
  7. 如权利要求2所述的发送方法，其中，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
    将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
  8. 如权利要求7所述的发送方法，其中，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
  9. 如权利要求2所述的发送方法，其中，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上 是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
    将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
  10. 如权利要求9所述的发送方法，其中，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
  11. 如权利要求1所述的发送方法，其中，所述下行传输包括以下任意一项或多项：
    物理下行链路共享信道PDSCH；
    指示下行半持续调度SPS资源释放的PDCCH。
  12. 如权利要求11所述的发送方法，其中，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
  13. 如权利要求1所述的发送方法，其中，所述时间单元为以下的任意一种：
    一个时隙；
    一个子帧；
    一个微时隙。
  14. 一种物理上行控制信道PUCCH接收方法，应用于基站，包括：
    发送至少两个下行传输，所述至少两个下行传输的混合自动重传请求确认HARQ-ACK在同一个时间单元中传输；
    根据所述至少两个下行传输分别对应的物理下行控制信道PDCCH所使用的下行控制信息DCI中的PUCCH资源指示域PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
    在确定的所述PUCCH资源上接收对应的下行传输的HARQ-ACK。
  15. 如权利要求14所述的接收方法，其中，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
    根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
  16. 如权利要求15所述的接收方法，其中，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
    当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
  17. 如权利要求16所述的接收方法，其中，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
    或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
  18. 如权利要求17所述的接收方法，其中，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
    当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
  19. 如权利要求15所述的接收方法，其中，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域 上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
    当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
  20. 如权利要求15所述的发送方法，其中，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
    将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
  21. 如权利要求20所述的接收方法，其中，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
  22. 如权利要求15所述的接收方法，其中，所述根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源，包括：
    将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
  23. 如权利要求22所述的接收方法，其中，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所 述不同的PUCCH资源之间在时域上不存在重叠。
  24. 如权利要求14所述的接收方法，其中，所述下行传输包括以下任意一项或多项：
    物理下行链路共享信道PDSCH；
    指示下行半持续调度SPS资源释放的PDCCH。
  25. 如权利要求24所述的接收方法，其中，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
  26. 如权利要求14所述的接收方法，其中，所述时间单元为以下的任意一种：
    一个时隙；
    一个子帧；
    一个微时隙。
  27. 一种终端，包括：
    接收模块，用于接收至少两个下行传输，所述至少两个下行传输的混合自动重传请求确认HARQ-ACK在同一个时间单元中传输；
    确定模块，用于根据所述至少两个下行传输分别对应的物理下行控制信道PDCCH所使用的下行控制信息DCI中的物理上行控制信道PUCCH资源指示域PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
    发送模块，用于在确定的所述PUCCH资源上发送对应的下行传输的HARQ-ACK。
  28. 如权利要求27所述的终端，其中，所述确定模块具体用于：
    根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
  29. 如权利要求28所述的终端，其中，所述确定模块具体用于：
    当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的 HARQ-ACK在同一个PUCCH资源上传输。
  30. 如权利要求29所述的终端，其中，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
    或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
  31. 如权利要求30所述的接收方法，其中，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
    当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
  32. 如权利要求28所述的终端，其中，所述确定模块具体用于：
    当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
  33. 如权利要求28所述的终端，其中，所述确定模块具体用于：
    将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
  34. 如权利要求33所述的终端，其中，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
  35. 如权利要求28所述的终端，其中，所述确定模块具体用于：
    将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
  36. 如权利要求35所述的终端，其中，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
  37. 如权利要求27所述的终端，其中，所述下行传输包括以下任意一项或多项：
    物理下行链路共享信道PDSCH；
    指示下行半持续调度SPS资源释放的PDCCH。
  38. 如权利要求37所述的终端，其中，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
  39. 如权利要求27所述的终端，其中，所述时间单元为以下的任意一种：
    一个时隙；
    一个子帧；
    一个微时隙。
  40. 一种基站，包括：
    发送模块，用于发送至少两个下行传输，所述至少两个下行传输的混合自动重传请求确认HARQ-ACK在同一个时间单元中传输；
    确定模块，用于根据所述至少两个下行传输分别对应的物理下行控制信道PDCCH所使用的下行控制信息DCI中的PUCCH资源指示域PRI指示的PUCCH资源，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源；
    接收模块，用于在确定的所述PUCCH资源上接收对应的下行传输的HARQ-ACK。
  41. 如权利要求40所述的基站，其中，所述确定模块具体用于：
    根据所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上是否存在重叠，确定用于传输所述至少两个下行传输的HARQ-ACK的PUCCH资源。
  42. 如权利要求41所述的基站，其中，所述确定模块具体用于：
    当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠时，确定所述至少两个下行传输的HARQ-ACK在同一个PUCCH资源上传输。
  43. 如权利要求42所述的基站，其中，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源；
    或者，所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源。
  44. 如权利要求43所述的基站，其中，当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，任意一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同；
    当所述PUCCH资源为所述至少两个下行传输分别对应的PDCCH中，最后一个PDCCH所使用的DCI中PRI指示的PUCCH资源时：所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源相同，或者，所述至少两个下行传输分别对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源不相同，且在时域上存在重叠。
  45. 如权利要求41所述的基站，其中，所述确定模块具体用于：
    当所述至少两个下行传输对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠时，确定所述至少两个下行传输的HARQ-ACK分别在时域上互不重叠的PUCCH资源上传输。
  46. 如权利要求41所述的基站，其中，所述确定模块具体用于：
    将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上存在重叠的下行传输作为一组，确定该组下行传 输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
  47. 如权利要求46所述的基站，其中，属于同一组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示相同或者不同的PUCCH资源，且当指示不同的PUCCH资源时，其中一个PUCCH资源与至少另一个PUCCH资源之间在时域上存在重叠。
  48. 如权利要求41所述的基站，其中，所述确定模块具体用于：
    将所述至少两个下行传输中，对应的PDCCH所使用的DCI中的PRI指示的PUCCH资源在时域上不存在重叠的下行传输分为不同组，分别确定每组下行传输对应PDCCH中的任意一个或者最后一个PDCCH所使用的DCI中的PRI指示的PUCCH资源，为用于传输该组下行传输的HARQ-ACK的PUCCH资源。
  49. 如权利要求48所述的基站，其中，属于不同组的多个下行传输分别对应的PDCCH所使用的DCI中的PRI指示不同的PUCCH资源，且所述不同的PUCCH资源之间在时域上不存在重叠。
  50. 如权利要求40所述的基站，其中，所述下行传输包括以下任意一项或多项：
    物理下行链路共享信道PDSCH；
    指示下行半持续调度SPS资源释放的PDCCH。
  51. 如权利要求50所述的基站，其中，当所述下行传输包括指示下行SPS资源释放的PDCCH时，所述下行传输对应的PDCCH为：所述指示下行SPS资源释放的PDCCH。
  52. 如权利要求40所述的基站，其中，所述时间单元为以下的任意一种：
    一个时隙；
    一个子帧；
    一个微时隙。
  53. 一种终端，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求1至 13任一项所述的物理上行控制信道PUCCH发送方法的步骤。
  54. 一种基站，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求14至26任一项所述的物理上行控制信道PUCCH接收方法的步骤。
  55. 一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至13中任一项所述的物理上行控制信道PUCCH发送方法中的步骤；
    或者，所述计算机程序被处理器执行时实现如权利要求14至26中任一项所述的物理上行控制信道PUCCH接收方法中的步骤。
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