CN110505697B - Transmission method, terminal and base station for hybrid automatic repeat request - Google Patents

Transmission method, terminal and base station for hybrid automatic repeat request Download PDF

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Publication number
CN110505697B
CN110505697B CN201810482534.0A CN201810482534A CN110505697B CN 110505697 B CN110505697 B CN 110505697B CN 201810482534 A CN201810482534 A CN 201810482534A CN 110505697 B CN110505697 B CN 110505697B
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dci
feedback information
pucch resource
harq feedback
pucch
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CN110505697A (en
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司倩倩
高雪娟
艾托尼
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Priority to CN201810482534.0A priority Critical patent/CN110505697B/en
Priority to PCT/CN2019/084907 priority patent/WO2019218869A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • 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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a transmission method of a hybrid automatic repeat request, a terminal and a base station. The transmission method of the invention comprises the following steps: determining one PUCCH resource set configured for a terminal, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1; according to PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in a PUCCH resource set, and sending the HARQ feedback information on the target PUCCH resource; the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.

Description

Transmission method, terminal and base station for hybrid automatic repeat request
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a transmission method, a terminal, and a base station for a hybrid automatic repeat request.
Background
In the current 5G, when determining a dynamic hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback codebook, a Physical Downlink Control Channel (PDCCH) detection opportunity set that performs feedback on the same Physical Uplink Control Channel (PUCCH) needs to be determined first. The PUCCH formats specified for PUCCH resource usage in the 3GPP protocol include: PUCCH format 0, PUCCH format 1, PUCCH format 2, PUCCH format 3, and PUCCH format 4. The problem that exists currently is that, since PUCCH resource indicators (PRIs, also called ARIs) included in Downlink Control Information (DCI) transmitted in different PDCCH detection opportunities may indicate different PUCCH resources, a terminal cannot determine whether a DCI (Physical Downlink Shared Channel, PDSCH) feeding HARQ-ACK back in the same slot or Semi-Persistent Scheduling (SPS) releasing the corresponding DCI belongs to a PDCCH detection opportunity set feeding back in the same PUCCH, which may cause a situation that understanding of HARQ-ACK feedback resources by a base station and the terminal is inconsistent, and affect system transmission performance.
For example, as shown in fig. 1 and fig. 2, it is assumed that the number of slots from PDSCH to HARQ-ACK detection configured by higher layer signaling is 1 to 8, and the DCI of the PDSCH in slot n to slot n +7 all indicates that the corresponding HARQ-ACK feedback information is transmitted in slot n + 8. A count-Downlink Assignment Indicator (C-DAI) and a PRI indication in the DCI are shown in the figure. The terminal cannot determine whether the DCI of the PDSCH in the slot n to the slot n +7 belongs to the PDCCH detection opportunity set fed back on the same PUCCH in this case, as in fig. 1, the terminal understands that the feedback information corresponding to the PDSCH in the slot n to the slot n +3 is transmitted on the PUCCH resource corresponding to PRI ═ 00 in the slot n +8, and the feedback information corresponding to the PDSCH in the slot n +4 to the slot n +7 is transmitted on the PUCCH resource corresponding to PRI ═ 01 in the slot n + 8. In fig. 2, the terminal understands that the feedback information corresponding to the PDSCH in slot n to slot n +7 is transmitted on the PUCCH resource corresponding to the PRI of 01 in slot n + 8.
For a super-high reliable ultra-low delay communication (URLLC) service, because the delay requirement is high, if only one PUCCH can be transmitted within one slot, the feedback delay will be increased, and therefore, it is necessary to support the UE to transmit at least two PUCCHs within one slot. However, when a dynamic codebook is used, there is no way to determine whether HARQ-ACK corresponding to PDSCH or SPS release fed back in the same slot is transmitted on the same PUCCH in the slot.
Disclosure of Invention
The invention aims to provide a transmission method, a terminal and a base station of hybrid automatic repeat request (HARQ), which are used for solving the problem that whether HARQ-ACK corresponding to PDSCH or SPS release fed back in the same slot is transmitted on the same PUCCH in the slot or not is not determined by using a dynamic codebook at present.
In order to achieve the above object, the present invention provides a transmission method of a hybrid automatic repeat request, which is applied to a terminal and includes:
determining a Physical Uplink Control Channel (PUCCH) resource set configured for a terminal, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and sending the HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
The HARQ feedback information comprises HARQ feedback information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to SPS release indicated by a plurality of DCIs.
Determining a target PUCCH resource used by HARQ feedback information corresponding to Downlink Control Information (DCI) in the PUCCH resource set according to a PRI (physical uplink control channel) resource indication included in the DCI, wherein the determining comprises the following steps:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs;
in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
The designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
In order to achieve the above object, an embodiment of the present invention further provides a transmission method for hybrid automatic repeat request, which is applied to a base station, and includes:
determining a Physical Uplink Control Channel (PUCCH) resource set configured for a terminal, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and receiving the HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
The HARQ feedback information comprises HARQ feedback information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to SPS release indicated by a plurality of DCIs.
Determining a target PUCCH resource used by HARQ feedback information corresponding to Downlink Control Information (DCI) in the PUCCH resource set according to a PRI (physical uplink control channel) resource indication included in the DCI, wherein the determining comprises the following steps:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs;
in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
The designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
In order to achieve the above object, an embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, the processor implementing the steps when executing the program of:
determining a Physical Uplink Control Channel (PUCCH) resource set configured for a terminal, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and transmitting the HARQ feedback information on the target PUCCH resource through a transceiver;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
The HARQ feedback information comprises HARQ feedback information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to SPS release indicated by a plurality of DCIs.
Wherein the processor, when executing the program, further implements the steps of:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs;
in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
The designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
In order to achieve the above object, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the transmission method of hybrid automatic repeat request as described above.
In order to achieve the above object, an embodiment of the present invention further provides a base station, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, the processor implementing the steps when executing the program of:
determining a Physical Uplink Control Channel (PUCCH) resource set configured for a terminal, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and receiving the HARQ feedback information on the target PUCCH resource through a transceiver;
the physical uplink control channel resource indications PRI contained in DCI corresponding to HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRI contained in DCI corresponding to HARQ feedback information transmitted on different PUCCHs in the same time slot is different.
The HARQ feedback information comprises HARQ feedback information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to SPS release indicated by a plurality of DCIs.
Wherein the processor, when executing the program, further implements the steps of:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs;
in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
The designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
In order to achieve the above object, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the transmission method of hybrid automatic repeat request as described above.
In order to achieve the above object, an embodiment of the present invention further provides a terminal, including:
a first determining module, configured to determine a PUCCH resource set configured for a terminal, where the PUCCH resource set only includes PUCCH resources using PUCCH format 0 and PUCCH format 1;
a sending module, configured to determine, according to a physical uplink control channel resource indicator PRI included in downlink control information DCI, a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and send the HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
The HARQ feedback information comprises HARQ feedback information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to SPS release indicated by a plurality of DCIs.
Wherein the sending module comprises:
a first determining submodule, configured to determine one or more groups of DCI with the same PRI in a plurality of DCIs when HARQ-ACK information corresponding to PDSCH transmission scheduled by the plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs are fed back in the same slot;
and a second determining submodule, configured to determine, in each set of DCI, one PUCCH as the target PUCCH resource in the PUCCH resource set according to the PRI included in the designated DCI.
The designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
In order to achieve the above object, an embodiment of the present invention further provides a base station, including:
a second determining module, configured to determine a PUCCH resource set configured for a terminal, where the PUCCH resource set only includes PUCCH resources using PUCCH format 0 and PUCCH format 1;
a receiving module, configured to determine, according to a physical uplink control channel resource indicator PRI included in downlink control information DCI, a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and receive HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
The HARQ feedback information comprises HARQ feedback information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to SPS release indicated by a plurality of DCIs.
Wherein the receiving module comprises:
a third determining submodule, configured to determine, in the multiple DCIs, one or more groups of DCI with the same PRI when HARQ-ACK information corresponding to PDSCH transmission scheduled by the multiple DCIs or HARQ-ACK information corresponding to SPS release indicated by the multiple DCIs are fed back in the same time slot;
and a fourth determining submodule, configured to determine, in each set of DCI, one PUCCH as the target PUCCH resource in the PUCCH resource set according to the PRI included in the designated DCI.
The designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
The embodiment of the invention has the following beneficial effects:
according to the technical scheme of the embodiment of the invention, only one PUCCH resource set is configured, and the condition that the DCIs corresponding to the HARQ feedback information fed back on the same PUCCH resource in the same time slot contain the same PRI and the DCIs corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot contain different PRI can be supported, so that the terminal can transmit the HARQ feedback information by using a plurality of PUCCHs in one slot, the terminal can determine whether the HARQ feedback information in the same time slot is transmitted on the same PUCCH in the time slot, the condition that the understanding of the feedback resources is inconsistent between the current base station and the terminal is avoided, especially the HARQ feedback is reduced for URLLC service, and the transmission performance of the system is improved.
Drawings
Fig. 1 is a first display diagram of PUCCH resources for feeding back HARQ-ACK feedback information in the same slot in the prior art;
fig. 2 is a second schematic diagram showing PUCCH resources for feeding back HARQ-ACK feedback information in the same slot in the prior art;
fig. 3 is a flowchart illustrating a transmission method of harq according to an embodiment of the present invention;
fig. 4 is a second flowchart illustrating a transmission method of harq according to an embodiment of the present invention;
fig. 5 is a first display diagram of PUCCH resources for feeding back HARQ-ACK feedback information in the same slot in the embodiment of the present invention;
fig. 6 is a second display diagram of PUCCH resources for feeding back HARQ-ACK feedback information in the same slot in the embodiment of the present invention;
fig. 7 is a third schematic display diagram of PUCCH resources feeding HARQ-ACK feedback information back in the same slot in the embodiment of the present invention;
fig. 8 is a fourth display diagram of PUCCH resources for feeding back HARQ-ACK feedback information in the same slot in the embodiment of the present invention;
fig. 9 is a fifth display diagram of PUCCH resources for feeding back HARQ-ACK feedback information in the same slot in the embodiment of the present invention;
fig. 10 is a sixth display diagram of PUCCH resources for feeding back HARQ-ACK feedback information in the same slot in the embodiment of the present invention;
fig. 11 is a block diagram of a terminal according to an embodiment of the present invention;
fig. 12 is a block diagram of a terminal according to an embodiment of the present invention;
fig. 13 is a block diagram of a base station according to an embodiment of the present invention;
fig. 14 is a block diagram of a base station according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings.
Currently in NR communication systems, dynamic codebook schemes are used to support HARQ-ACK feedback.
When the configuration user uses the dynamic codebook scheme, a DCI format 1_0 includes a 2-bit counter DAI; DCI format 1_1 includes a 2-bit count DAI and a 2-bit total DAI, and DCI format 1_0 and DCI format 1_1 are DCI formats specified in the 3GPP protocol.
The counted DAI in the downlink DCI indicates that the cumulative number of downlink SPS releases is indicated by all PDSCH transmissions and DCI format 1_0 scheduled by DCI format 1_0 or DCI format 1_1 until the current carrier and the current PDCCH detection opportunity according to the sequence of increasing the carrier index first and then increasing the PDCCH detection opportunity index in the feedback window. The total DAI in the downlink DCI indicates that, in the feedback window, all the PDSCH transmissions scheduled by DCI format 1_0 or DCI format 1_1 and the number of downlink SPS releases indicated by DCI format 1_0 are updated one by the current PDCCH detection opportunity until the PDCCH detection opportunity. The feedback window is a set of M PDCCH detection opportunities, and based on the interval between the maximum data and the minimum data configured by the high-level signaling and the feedback, the UE can determine the PDCCH detection opportunity set used for DCI format 1_0 or DCI format 1_1 transmission, and the HARQ-ACK is fed back on the same PUCCH corresponding to the PDSCH or SPS release scheduled by the DCI.
When determining the feedback time sequence between the DCI released by the PDSCH or the downlink SPS and the corresponding HARQ-ACK, the time slot in which the HARQ-ACK feedback information is located and the PUCCH resource used in the feedback time slot are determined through different information domain indications in the high-layer signaling and/or the DCI. Specifically, the higher layer signaling configures one or at most 8 HARQ timing values to the terminal, and determines the transmission slot of the HARQ-ACK feedback information according to the 3-bit HARQ timing indication information included in the DCI.
For the PUCCH resource indication, the base station configures 16 PUCCH resources to the terminal through higher layer signaling before RRC connection establishment. After the RRC connection is established, the base station configures up to 4 PUCCH resource sets to the terminal through RRC signaling. If the UCI bit number transmitted by the terminal is less than or equal to 2, using a first PUCCH resource set; if the number of UCI bits transmitted by the terminal is more than 2 and less than or equal to N2, using a second PUCCH resource set; if the number of UCI bits transmitted by the terminal is greater than N2 and less than or equal to N3, using a third PUCCH resource set; if the number of UCI bits transmitted by the terminal is greater than N3 and less than or equal to 1706, using a fourth PUCCH resource set; where N2 and N3 are RRC signaling configured values. The first PUCCH resource set includes 32 PUCCH resources at most, and the other PUCCH resource sets include 8 PUCCH resources at most. If the number of PUCCH resources in the PUCCH resource set is less than or equal to 8, the base station determines the PUCCH resources used by HARQ-ACK feedback through the 3-bit PUCCH resource indication information contained in the DCI; and if the number of the PUCCH resources in the PUCCH resource set is more than 8, the base station implicitly determines the PUCCH resources used by the HARQ-ACK feedback through the 3-bit PUCCH resource indication information contained in the DCI and the CCE number of the minimum control channel unit of the PDCCH where the DCI is located.
An embodiment of the present invention provides a transmission method for a hybrid automatic repeat request, which is applied to a terminal, and as shown in fig. 3, the transmission method includes:
step 301: determining one Physical Uplink Control Channel (PUCCH) resource set configured for a terminal, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1.
When a terminal is configured to use a dynamic hybrid automatic repeat request (HARQ) feedback codebook, if a plurality of Physical Uplink Control Channels (PUCCHs) are supported to be used for transmitting HARQ feedback information in the same time slot, determining a Physical Uplink Control Channel (PUCCH) resource set configured for the terminal by a base station.
The transmission method of the embodiment of the invention is a transmission method used for URLLC service, and the base station only configures one PUCCH resource set for the terminal in the embodiment of the invention, namely only supports UE to transmit 1 or 2 bits of HARQ feedback information.
The PUCCH resource set is a PUCCH resource set configured by the base station through high-level signaling.
The HARQ feedback information includes HARQ feedback information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to SPS release indicated by a plurality of DCIs. The HARQ feedback information is HARQ-ACK or HARQ-NACK.
Step 302: according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and sending the HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
The DCI is transmitted using DCI format 1-0 and/or DCI format 1-1.
According to the transmission method of the hybrid automatic repeat request, only one PUCCH resource set is configured, the PRIs contained in DCIs corresponding to HARQ feedback information fed back on the same PUCCH resource in the same time slot are limited to be the same, and the PRIs contained in DCIs corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different, so that the terminal can be supported to transmit the HARQ feedback information by using a plurality of PUCCHs in one slot, the terminal can determine whether the HARQ feedback information in the same time slot is transmitted on the same PUCCH in the time slot, the condition that the understanding of the feedback resources is inconsistent between the base station and the terminal at present is avoided, the HARQ feedback time delay is reduced particularly for URLLC services, and the transmission performance of the system is improved.
Further, the determining, according to that the downlink control information DCI includes a physical uplink control channel resource indicator PRI, a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set includes:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs;
in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
The designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes; or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
Preferably, at most two time-division multiplexed PUCCHs in the above-mentioned one slot are used for simultaneously transmitting the HARQ feedback information.
It should be noted that, the transmission method in the embodiment of the present invention is a transmission method only used for URLLC services, and for a UE supporting both eMBB and URLLC services, HARQ-ACK corresponding to a PDSCH of the eMBB service can be transmitted only through one PUCCH resource in one slot, and HARQ-ACK corresponding to a PDSCH of the URLLC service can be transmitted through one or more PUCCH resources in one slot.
In addition, when the UE supports eMBB and URLLC service transmission simultaneously, ACK/NACK corresponding to the two services is not multiplexed on the same PUCCH resource.
According to the transmission method of the hybrid automatic repeat request, only one PUCCH resource set is configured, the PRIs contained in DCIs corresponding to HARQ feedback information fed back on the same PUCCH resource in the same time slot are limited to be the same, and the PRIs contained in DCIs corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different, so that the terminal can be supported to transmit the HARQ feedback information by using a plurality of PUCCHs in one slot, the terminal can determine whether the HARQ feedback information in the same time slot is transmitted on the same PUCCH in the time slot, the condition that the understanding of the feedback resources is inconsistent between the base station and the terminal at present is avoided, the HARQ feedback time delay is reduced particularly for URLLC services, and the transmission performance of the system is improved.
As shown in fig. 4, an embodiment of the present invention further provides a transmission method of a hybrid automatic repeat request, which is applied to a base station, and includes:
step 401: determining one Physical Uplink Control Channel (PUCCH) resource set configured for a terminal, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1.
When a terminal is configured to use a dynamic hybrid automatic repeat request (HARQ) feedback codebook, if a plurality of Physical Uplink Control Channels (PUCCHs) are supported to transmit HARQ feedback information in the same time slot, determining a Physical Uplink Control Channel (PUCCH) resource set configured for the terminal.
The transmission method of the embodiment of the invention is a transmission method used for URLLC service, and the base station only configures one PUCCH resource set for the terminal in the embodiment of the invention, namely only supports UE to transmit 1 or 2 bits of HARQ feedback information.
The PUCCH resource set is a PUCCH resource set configured by the base station through high-level signaling.
The HARQ feedback information includes HARQ feedback information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to SPS release indicated by a plurality of DCIs. The HARQ feedback information is HARQ-ACK or HARQ-NACK.
Step 402: according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and receiving the HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
The DCI is transmitted using DCI format 1-0 and/or DCI format 1-1.
According to the transmission method of the hybrid automatic repeat request, only one PUCCH resource set is configured, the PRIs contained in DCIs corresponding to HARQ feedback information fed back on the same PUCCH resource in the same time slot are limited to be the same, and the PRIs contained in DCIs corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different, so that the terminal can be supported to transmit the HARQ feedback information by using a plurality of PUCCHs in one slot, the terminal can determine whether the HARQ feedback information in the same time slot is transmitted on the same PUCCH in the time slot, the condition that the understanding of the feedback resources is inconsistent between the base station and the terminal at present is avoided, the HARQ feedback time delay is reduced particularly for URLLC services, and the transmission performance of the system is improved.
Further, the determining, according to a physical uplink control channel resource indicator PRI included in downlink control information DCI, a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set includes:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs; in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
The designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes; or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
Preferably, at most two time-division multiplexed PUCCHs in the above-mentioned one slot are used for simultaneously transmitting the HARQ feedback information.
It should be noted that, the transmission method in the embodiment of the present invention is a transmission method only used for URLLC services, and for a UE supporting both eMBB and URLLC services, a base station can receive HARQ-ACK corresponding to a PDSCH of the eMBB service only through one PUCCH resource in one slot, and the base station can receive HARQ-ACK corresponding to a PDSCH of the URLLC service through multiple PUCCH resources in one slot.
In addition, when the UE supports eMBB and URLLC traffic transmission simultaneously, the base station may indicate different PUCCH feedback resources for the two types of traffic. At this time, the base station may configure more than one PUCCH resource set for the eMBB service, if the base station configures the same first PUCCH resource set for the eMBB service and the URLLC service, when the eMBB service uses the PUCCH resource in the first PUCCH resource set to transmit feedback information, the base station indicates different PUCCH feedback resources in the same time slot for the two services by indicating different PRIs in DCI; if the base station configures different first PUCCH resource sets for the eMB service and the URLLC service, when the eMB service uses the PUCCH resource in the first PUCCH resource set to transmit the feedback information, the base station and the UE determine to use the PUCCH resource in the corresponding PUCCH resource set according to the transmission service type.
According to the transmission method of the hybrid automatic repeat request, only one PUCCH resource set is configured, the PRIs contained in DCIs corresponding to HARQ feedback information fed back on the same PUCCH resource in the same time slot are limited to be the same, and the PRIs contained in DCIs corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different, so that the terminal can be supported to transmit the HARQ feedback information by using a plurality of PUCCHs in one slot, the terminal can determine whether the HARQ feedback information in the same time slot is transmitted on the same PUCCH in the time slot, the condition that the understanding of the feedback resources is inconsistent between the base station and the terminal at present is avoided, the HARQ feedback time delay is reduced particularly for URLLC services, and the transmission performance of the system is improved.
The transmission method of the harq according to the embodiment of the present invention is described below with reference to specific embodiments.
Example 1:
it is assumed that one terminal supports only URLLC traffic transmission and that a maximum of two time-division multiplexed PUCCH resources are available for transmission of ACK/NACK information in one slot. When the base station only configures one PUCCH resource set for the UE and the set comprises 8 PUCCH resources, the number of slots from PDSCH to HARQ-ACK detection configured by high-level signaling is assumed to be 1 and 2, and the DCI of the PDSCH in the slot n to the slot n +1 all indicates that the corresponding HARQ-ACK feedback information is transmitted in the slot n + 2. The specific feedback of the UE is divided into the following different cases:
case a: as shown in fig. 5, in slot n and slot n +1, the C-DAI indications in the DCI corresponding to the PDSCH are 1 and 2 respectively, and the PRI indications in the DCI are 000 respectively, so that the feedback information of the PDSCH in both slot n and slot n +1 is transmitted using the first PUCCH resource in the PUCCH resource set configured by the higher layer signaling;
case B: as shown in fig. 6, in slot n to slot n +1, the C-DAI indication in the DCI corresponding to the PDSCH is 1, while in slot n, the PRI indication in the DCI corresponding to the PDSCH is 000, and in slot n +1, the PRI indication in the DCI corresponding to the PDSCH is 001, so that the feedback information of the PDSCH in slot n is transmitted using the first PUCCH resource in the PUCCH resource set configured by the higher layer signaling, and the feedback information of the PDSCH in slot n +1 is transmitted using the second PUCCH resource in the PUCCH resource set configured by the higher layer signaling.
Case C: as shown in fig. 7, in slot n, the base station schedules two PDSCHs, the C-DAI indications in the corresponding DCI are 1 and 2, respectively, and the PRI indications are 000, and in slot n +1, the base station schedules two PDSCHs, the C-DAI indications in the corresponding DCI are 1 and 2, respectively, and the PRI indications are 001, so that the feedback information of the two PDSCHs in slot n is transmitted using the first PUCCH resource in the PUCCH resource set configured by the higher layer signaling, and the feedback information of the two PDSCHs in slot n +1 is transmitted using the second PUCCH resource in the PUCCH resource set configured by the higher layer signaling;
case D: as shown in fig. 8, in slot n, the base station schedules two PDSCHs on two carriers, the C-DAI indications in the corresponding DCI are 1 and 2, respectively, and the PRI indications are 000, and in slot n +1, the base station schedules two PDSCHs on two carriers, the C-DAI indications in the corresponding DCI are 1 and 2, respectively, and the ARI indications are 001, so that the feedback information of the two PDSCHs in slot n is transmitted using the first PUCCH resource in the PUCCH resource set configured by the higher layer signaling, and the feedback information of the two PDSCHs in slot n +1 is transmitted using the second PUCCH resource in the PUCCH resource set configured by the higher layer signaling.
Example 2:
it is assumed that one terminal supports both eMBB traffic and URLLC traffic transmission and can determine which traffic the PDSCH is for in some way. The terminal has at most two time-division multiplexed PUCCH resources available for transmitting ACK/NACK information in one slot. When the base station configures the PUCCH resources, the following two methods are used:
the first method is as follows: when resources are configured, eMBBs and URLLC are not distinguished, a base station configures two PUCCH resource sets for UE, and each set comprises 8 PUCCH resources, wherein the first PUCCH resource set is used for transmitting 1-2 bits of ACK/NACK information, and the second PUCCH resource set is used for transmitting more than 2 bits of ACK/NACK information.
The second method comprises the following steps: the method comprises the steps that eMBBs and URLLC are divided when resources are configured, a base station configures two PUCCH resource sets for eMBBs of UE, and each set comprises 8 PUCCH resources, wherein the first PUCCH resource set is used for transmitting 1-2 bits of ACK/NACK information, and the second PUCCH resource set is used for transmitting more than 2 bits of ACK/NACK information; additionally configuring a group of PUCCH resource sets for URLLC service, and transmitting 1-2 bits of ACK/NACK information;
similarly, when the base station configures the number of slots from the PDSCH to the HARQ-ACK feedback interval, the following two methods are also used:
the first method is as follows: eMBB and URLLC are not distinguished during configuration, and the number of slots from PDSCH to HARQ-ACK feedback interval configured for UE by a base station is 1-8;
the second method comprises the following steps: the eMBB and the URLLC are distinguished in resource allocation, and the base station allocates 1-8 slots from the PDSCH to the HARQ-ACK feedback interval for the eMBB service of the UE; the slot number from PDSCH to HARQ-ACK feedback interval of the URLLC service is 1-2;
and the base station indicates the HARQ-ACK feedback information corresponding to the PDSCH from the time slot n to the time slot n +7 to be transmitted in the time slot n + 8. The specific feedback of the UE is divided into the following different cases:
case a: as shown in fig. 9, in time slot n, time slot n +2, and time slot n +6, the base station schedules the PDSCH transmitting the eMBB service, where the PRIs in the corresponding DCI are 000, 011, and 111, respectively, and in time slot n +6 and time slot n +7, the base station schedules the PDSCH transmitting the URLLC service, where the PRIs in the corresponding DCI are all 000. For the eMBB service, in a feedback window corresponding to slot n +8, because the last detected DCI of the UE is the DCI corresponding to the PDSCH transmitted in slot n +6, the PUCCH resource indicated by the DCI corresponding to the PDSCH transmitted in slot n +6 is used for feedback, and because the feedback bit number is greater than 2, the terminal uses the eighth PUCCH resource in the PUCCH resource set 2 (which is a resource set dedicated for eMBB) for feedback; for the URLLC service, in time slot n +6 and time slot n +7, the C-DAI indications in the DCI received by the UE corresponding to the two PDSCHs are 1 and 2, respectively, and the PRI indications in the DCI are 000, so that the feedback information of the PDSCH of the URLLC service in time slot n +6 and time slot n +7 is transmitted using the first PUCCH resource set configured by the higher layer signaling (i.e., resource set 1, which may be a resource set dedicated to URLLC, or a resource set common to eMBB and URLLC).
Case B: as shown in fig. 10, in time slot n, time slot n +2, and time slot n +6, the base station schedules the PDSCH transmitting the eMBB service, and the corresponding DCI has PRIs of 000, 011, and 111, respectively, and in time slot n +6 and time slot n +7, the base station schedules the PDSCH transmitting the URLLC service, and the corresponding DCI has PRIs of 000 and 001, respectively. For the eMBB service, in a feedback window corresponding to slot n +8, because the last detected DCI of the UE is the DCI corresponding to the PDSCH transmitted in slot n +6, the PUCCH resource indicated by the DCI corresponding to the PDSCH transmitted in slot n +6 is used for feedback, and because the feedback bit number is greater than 2, the terminal uses the eighth PUCCH resource in the second PUCCH resource set (resource set 2, which is a resource set dedicated for eMBB) configured by the high-level signaling for feedback; for the URLLC service, in slot n +6 and slot n +7, the C-DAI indications in the DCI corresponding to the two PDSCHs received by the UE are both 1, and the PRI indications in the DCI are 000 and 001, respectively, so that the feedback information of the PDSCH in slot n +6 is transmitted using the first PUCCH resource in the PUCCH resource set configured by the higher layer signaling (may be a resource set dedicated to URLLC, or a resource set common to eMBB and URLLC), and the feedback information of the PDSCH in slot n +7 is transmitted using the second PUCCH resource in the PUCCH resource set configured by the higher layer signaling.
According to the transmission method provided by the embodiment of the invention, only one PUCCH resource set is configured, and the condition that the DCIs corresponding to the HARQ feedback information fed back on the same PUCCH resource in the same time slot contain the same PRI and the DCIs corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot contain different PRIs can be supported, so that the terminal can transmit the HARQ feedback information by using a plurality of PUCCHs in one slot, the terminal can determine whether the HARQ feedback information in the same time slot is transmitted on the same PUCCH in the time slot, the condition that the understanding of the feedback resources is inconsistent between the current base station and the terminal is avoided, especially the HARQ feedback time delay is reduced for URLLC services, and the transmission performance of the system is improved.
As shown in fig. 11, an embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, the processor implementing the steps when executing the program of:
determining a Physical Uplink Control Channel (PUCCH) resource set configured for a terminal, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and sending the HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
Where in fig. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1100, and various circuits, represented by memory 1120, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1110 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 1130 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1100 in performing operations.
Optionally, the HARQ feedback information includes HARQ feedback information corresponding to PDSCH transmission scheduled by multiple DCIs or HARQ feedback information corresponding to SPS release indicated by multiple DCIs.
Optionally, the processor 1100 is further configured to read the program in the memory 1120, and execute the following steps:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs;
in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
Optionally, the designated DCI is the first or last DCI detected by the terminal according to the order of increasing carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
In some embodiments of the invention, there is also provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
determining a Physical Uplink Control Channel (PUCCH) resource set configured for a terminal, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and sending the HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
When executed by the processor, the program can implement all implementation manners in the above-described transmission method embodiment for a hybrid automatic repeat request applied to a terminal side, and details are not described here to avoid repetition.
As shown in fig. 12, an embodiment of the present invention further provides a terminal, including:
a first determining module 1201, configured to determine a PUCCH resource set configured for a terminal, where the PUCCH resource set only includes PUCCH resources using PUCCH format 0 and PUCCH format 1;
a sending module 1202, configured to determine, according to a physical uplink control channel resource indication PRI included in downlink control information DCI, a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and send the HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
In the terminal of the embodiment of the present invention, the HARQ feedback information includes HARQ feedback information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to SPS release indicated by a plurality of DCIs.
In the terminal of the embodiment of the present invention, the sending module 1202 includes:
a first determining submodule, configured to determine one or more groups of DCI with the same PRI in a plurality of DCIs when HARQ-ACK information corresponding to PDSCH transmission scheduled by the plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs are fed back in the same slot;
and a second determining submodule, configured to determine, in each set of DCI, one PUCCH as the target PUCCH resource in the PUCCH resource set according to the PRI included in the designated DCI.
In the terminal of the embodiment of the present invention, the designated DCI is the first or last DCI detected by the terminal according to the order of increasing carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
In the embodiment of the invention, only one PUCCH resource set is configured, and the condition that the DCIs corresponding to the HARQ feedback information fed back on the same PUCCH resource in the same time slot are the same is limited, and the PRIs corresponding to the DCIs corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different, so that the terminal can be supported to use a plurality of PUCCHs to transmit the HARQ feedback information in one slot, the terminal can determine whether the HARQ feedback information in the same time slot is transmitted on the same PUCCH in the time slot, the condition that the understanding of the feedback resources is inconsistent between the current base station and the terminal is avoided, especially the HARQ feedback time delay is reduced for the URLLC service, and the transmission performance of the system is improved.
As shown in fig. 13, the embodiment of the present invention further provides a base station, which includes a memory 1320, a processor 1300, a transceiver 1310, a bus interface, and a program stored in the memory 1320 and operable on the processor 1300, wherein the processor 1300 is configured to read the program in the memory 1320 and execute the following processes:
determining a Physical Uplink Control Channel (PUCCH) resource set configured for a terminal, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and receiving the HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
In fig. 13, among other things, the bus architecture may include any number of interconnected buses and bridges with various circuits being linked together, particularly one or more processors represented by processor 1300 and memory represented by memory 1320. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1310 can be a number of elements including a transmitter and a transceiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 may store data used by the processor 1300 in performing operations.
Optionally, the HARQ feedback information includes HARQ feedback information corresponding to PDSCH transmission scheduled by multiple DCIs or HARQ feedback information corresponding to SPS release indicated by multiple DCIs.
Optionally, when the processor 1300 executes the program, the following steps may be further implemented:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs;
in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
Optionally, the designated DCI is the first or last DCI detected by the terminal according to the order of increasing carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
In some embodiments of the invention, there is also provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
determining a Physical Uplink Control Channel (PUCCH) resource set configured for a terminal, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and receiving the HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
When executed by the processor, the program can implement all the implementation manners in the method embodiment applied to the base side, and is not described herein again to avoid repetition.
As shown in fig. 14, an embodiment of the present invention further provides a base station, including:
a second determining module 1401, configured to determine one PUCCH resource set configured for the terminal, where the PUCCH resource set only includes PUCCH resources using PUCCH format 0 and PUCCH format 1;
a receiving module 1402, configured to determine, according to a physical uplink control channel resource indicator PRI included in downlink control information DCI, a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and receive HARQ feedback information on the target PUCCH resource;
the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRIs contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot are different.
In the base station of the embodiment of the present invention, the HARQ feedback information includes HARQ feedback information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to SPS release indicated by a plurality of DCIs.
In the base station of the embodiment of the present invention, the receiving module 1402 includes:
a third determining submodule, configured to determine, in the multiple DCIs, one or more groups of DCI with the same PRI when HARQ-ACK information corresponding to PDSCH transmission scheduled by the multiple DCIs or HARQ-ACK information corresponding to SPS release indicated by the multiple DCIs are fed back in the same time slot;
and a fourth determining submodule, configured to determine, in each set of DCI, one PUCCH as the target PUCCH resource in the PUCCH resource set according to the PRI included in the designated DCI.
In the base station of the embodiment of the present invention, the designated DCI is the first or last DCI detected by the terminal according to the order of increasing carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
According to the base station provided by the embodiment of the invention, only one PUCCH resource set is configured, and the condition that the DCIs corresponding to the HARQ feedback information fed back on the same PUCCH resource in the same time slot contain the same PRI and the DCIs corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot contain different PRIs can be supported, so that the terminal can transmit the HARQ feedback information by using a plurality of PUCCHs in one slot, the terminal can determine whether the HARQ feedback information in the same time slot is transmitted on the same PUCCH in the time slot, the condition that the understanding of the feedback resources is inconsistent between the base station and the terminal at present is avoided, especially the HARQ feedback time delay is reduced for URLLC services, and the transmission performance of the system is improved.
In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (20)

1. A transmission method of hybrid automatic repeat request is applied to a terminal, and is characterized by comprising the following steps:
determining one Physical Uplink Control Channel (PUCCH) resource set configured for a terminal only, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and sending the HARQ feedback information on the target PUCCH resource;
the PRI contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot is the same, and the PRI contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot is different;
determining a target PUCCH resource used by HARQ feedback information corresponding to Downlink Control Information (DCI) in the PUCCH resource set according to a PRI (physical uplink control channel) resource indication included in the DCI, wherein the method comprises the following steps:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs;
in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
2. The transmission method of hybrid automatic repeat request according to claim 1, wherein the HARQ feedback information comprises HARQ feedback information corresponding to a plurality of DCI scheduled PDSCH transmissions or a plurality of DCI indicated semi-persistent scheduling SPS releases.
3. The transmission method of hybrid automatic repeat request according to claim 1,
the designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
4. A transmission method of hybrid automatic repeat request is applied to a base station, and is characterized by comprising the following steps:
determining one Physical Uplink Control Channel (PUCCH) resource set configured for a terminal only, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and receiving the HARQ feedback information on the target PUCCH resource;
the PRI contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot is the same, and the PRI contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot is different;
determining a target PUCCH resource used by HARQ feedback information corresponding to Downlink Control Information (DCI) in the PUCCH resource set according to a PRI (physical uplink control channel) resource indication included in the DCI, wherein the method comprises the following steps:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs;
in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
5. The transmission method of hybrid automatic repeat request according to claim 4, wherein the HARQ feedback information comprises HARQ feedback information corresponding to a PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to a SPS release indicated by a plurality of DCIs.
6. The transmission method of hybrid automatic repeat request according to claim 4,
the designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
7. A terminal, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of:
determining one Physical Uplink Control Channel (PUCCH) resource set configured for a terminal only, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and transmitting the HARQ feedback information on the target PUCCH resource through a transceiver;
the PRI contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot is the same, and the PRI contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot is different;
the processor, when executing the program, may further implement the steps of:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs;
in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
8. The terminal of claim 7, wherein the HARQ feedback information comprises HARQ feedback information corresponding to a PDSCH transmission scheduled by a plurality of DCIs or HARQ feedback information corresponding to a SPS release indicated by a plurality of DCIs.
9. The terminal of claim 7,
the designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the transmission method of hybrid automatic repeat request according to one of the claims 1 to 3.
11. A base station, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of:
determining one Physical Uplink Control Channel (PUCCH) resource set configured for a terminal only, wherein the PUCCH resource set only comprises PUCCH resources using PUCCH format 0 and PUCCH format 1;
according to a physical uplink control channel resource indication PRI contained in downlink control information DCI, determining a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and receiving the HARQ feedback information on the target PUCCH resource through a transceiver;
the physical uplink control channel resource indications PRI contained in DCI corresponding to HARQ feedback information transmitted on the same PUCCH resource in the same time slot are the same, and the PRI contained in DCI corresponding to HARQ feedback information transmitted on different PUCCHs in the same time slot is different;
the processor, when executing the program, may further implement the steps of:
when HARQ-ACK information corresponding to PDSCH transmission scheduled by a plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs is fed back in the same time slot, determining one or more groups of DCIs with the same PRI in the plurality of DCIs;
in each group of DCI, determining one PUCCH in the PUCCH resource set as the target PUCCH resource according to the PRI contained in the designated DCI.
12. The base station of claim 11, wherein the HARQ feedback information comprises HARQ feedback information corresponding to a plurality of DCI scheduled PDSCH transmissions or HARQ feedback information corresponding to a plurality of DCI indicated SPS releases.
13. The base station of claim 11,
the designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
14. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the transmission method of hybrid automatic repeat request according to any of the claims 4 to 6.
15. A terminal, comprising:
a first determining module, configured to determine one Physical Uplink Control Channel (PUCCH) resource set configured for a terminal only, where the PUCCH resource set only includes PUCCH resources using PUCCH format 0 and PUCCH format 1;
a sending module, configured to determine, according to a physical uplink control channel resource indicator PRI included in downlink control information DCI, a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and send the HARQ feedback information on the target PUCCH resource;
the PRI contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot is the same, and the PRI contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot is different;
the sending module comprises:
a first determining submodule, configured to determine one or more groups of DCI with the same PRI in a plurality of DCIs when HARQ-ACK information corresponding to PDSCH transmission scheduled by the plurality of DCIs or HARQ-ACK information corresponding to SPS release indicated by the plurality of DCIs are fed back in the same slot;
and a second determining submodule, configured to determine, in each set of DCI, one PUCCH as the target PUCCH resource in the PUCCH resource set according to the PRI included in the designated DCI.
16. The terminal of claim 15, wherein the HARQ feedback information comprises HARQ feedback information corresponding to a plurality of DCI scheduled PDSCH transmissions or a plurality of DCI indicated semi-persistent scheduling (SPS) releases.
17. The terminal of claim 15,
the designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
18. A base station, comprising:
a second determining module, configured to determine one PUCCH resource set configured for a terminal, where the PUCCH resource set only includes PUCCH resources using PUCCH format 0 and PUCCH format 1;
a receiving module, configured to determine, according to a physical uplink control channel resource indicator PRI included in downlink control information DCI, a target PUCCH resource used by HARQ feedback information corresponding to the DCI in the PUCCH resource set, and receive HARQ feedback information on the target PUCCH resource;
the PRI contained in the DCI corresponding to the HARQ feedback information transmitted on the same PUCCH resource in the same time slot is the same, and the PRI contained in the DCI corresponding to the HARQ feedback information transmitted on different PUCCHs in the same time slot is different;
the receiving module includes:
a third determining submodule, configured to determine, in the multiple DCIs, one or more groups of DCI with the same PRI when HARQ-ACK information corresponding to PDSCH transmission scheduled by the multiple DCIs or HARQ-ACK information corresponding to SPS release indicated by the multiple DCIs are fed back in the same time slot;
and a fourth determining submodule, configured to determine, in each set of DCI, one PUCCH as the target PUCCH resource in the PUCCH resource set according to the PRI included in the designated DCI.
19. The base station of claim 18, wherein the HARQ feedback information comprises HARQ feedback information corresponding to a plurality of DCI scheduled PDSCH transmissions or HARQ feedback information corresponding to a plurality of DCI indicated SPS releases.
20. The base station of claim 18,
the designated DCI is the first or last DCI detected by the terminal according to the increasing sequence of the carrier indexes;
or, the designated DCI is the first or last DCI detected by the terminal according to the increasing order of PDCCH detection opportunity indexes.
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