WO2022017260A1 - Harq ack信息反馈方法及装置、存储介质、用户设备、基站 - Google Patents

Harq ack信息反馈方法及装置、存储介质、用户设备、基站 Download PDF

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Publication number
WO2022017260A1
WO2022017260A1 PCT/CN2021/106662 CN2021106662W WO2022017260A1 WO 2022017260 A1 WO2022017260 A1 WO 2022017260A1 CN 2021106662 W CN2021106662 W CN 2021106662W WO 2022017260 A1 WO2022017260 A1 WO 2022017260A1
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Prior art keywords
harq ack
ack information
information
harq
priority
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PCT/CN2021/106662
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English (en)
French (fr)
Inventor
周欢
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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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 signalling, 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
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
    • H04L47/2433—Allocation of priorities to traffic types
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/50—Queue scheduling
    • H04L47/62—Queue scheduling characterised by scheduling criteria
    • H04L47/625—Queue scheduling characterised by scheduling criteria for service slots or service orders
    • H04L47/6275—Queue scheduling characterised by scheduling criteria for service slots or service orders based on priority
    • 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
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to a HARQ ACK information feedback method and device, a storage medium, a user equipment, and a base station.
  • Type 3 Hybrid Automatic Repeat request (HARQ) acknowledgement (ACKnowledge, ACK) codebook (also known as one-shot HARQ ACK feedback) refers to After receiving the instruction to trigger the one-shot HARQ ACK, the UE simultaneously feeds back the HARQ ACKs of the HARQ processes of all configured cells to the base station. At the same time, if the current cell is configured as a Code Block Group (CBG), the feedback HARQ ACK is the HARQ ACK signaling of each CBG. If the configuration is for New Data Indicator (NDI) reporting, the HARQ ACK and NDI of each HARQ process are reported together, with the HARQ ACK first and the NDI last.
  • CBG Code Block Group
  • NDI New Data Indicator
  • the UE will determine the HARQ ACK information according to whether the HARQ ACK of one TB of a HARQ process corresponding to the serving cell has been reported. Specifically, if a DCI format has been reported and no subsequent detection is made, a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) corresponding to a transmission block (Transmission Block, TB) of a HARQ process in a serving cell or received semi-persistent scheduling (Persistent Scheduling, SPS) PDSCH, NACK is fed back; otherwise, the corresponding HARQ ACK information is reported.
  • Physical Downlink shared channel Physical Downlink Shared Channel, PDSCH
  • TB Transmission Block
  • SPS semi-persistent Scheduling
  • the type 3 HARQ ACK codebook does not support the generation of the type 3 HARQ ACK codebook (Code Book, CB) in the presence of HARQ ACKs with different priorities.
  • the technical problem solved by the present invention is how to generate HARQ ACK information in the presence of HARQ ACKs with different priorities.
  • an embodiment of the present invention provides a HARQ ACK information feedback method.
  • the HARQ ACK information feedback method includes: receiving downlink control signaling that triggers the generation of HARQ ACK information; determining the HARQ ACK priority in the downlink control signaling level indication information, the HARQ ACK priority indication information is used to indicate whether to feed back the HARQ ACK information of HARQ processes of all priorities; at least feed back the HARQ ACK information to the base station according to the HARQ ACK priority indication information.
  • the HARQ ACK priority indication information indicates to feed back HARQ ACK information of HARQ processes of all priorities; the HARQ ACK information fed back to the base station at least according to the HARQ ACK priority indication information includes: determining the HARQ ACK information of all HARQ processes. The maximum value in the number of bits required for the HARQ ACK information; the HARQ ACK information of all HARQ processes is determined according to the maximum value, and the HARQ ACK information is fed back to the base station.
  • the determining the maximum value of the number of bits required for the HARQ ACK information of all HARQ processes includes: determining the number of CBGs when the CBG is configured and the number of CBGs not configured. The maximum number of transmission blocks at a time.
  • whether each priority is configured with HARQ ACK space division binding is different, and the determining the maximum value of the number of bits required for HARQ ACK information of all HARQ processes includes: determining the HARQ ACK information for configuring HARQ ACK space division binding The required number of bits is the maximum value of the required number of bits of HARQ ACK information for which HARQ ACK spatial division bundling is not configured.
  • the determining the maximum value of the number of bits required for the HARQ ACK information of all HARQ processes includes: determining the required number of bits of the HARQ ACK information for configuring the NDI and not configuring the NDI. The maximum number of bits required for the HARQ ACK message.
  • the downlink control signaling further indicates a designated priority, and the designated priority is a priority for which HARQ ACK information needs to be fed back.
  • the HARQ ACK priority indication information indicates to feed back the HARQ ACK information of HARQ processes of all priorities; and the feeding back the HARQ ACK information to the base station at least according to the HARQ ACK priority indication information includes: determining that the priority is all the HARQ ACK information.
  • the first number of bits required for the HARQ ACK information of the specified priority for the HARQ ACK information whose priority is the specified priority, the first HARQ ACK information is determined according to the first number of bits; Specify the HARQ ACK information of the priority, then determine the second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first number of bits, where the first number of bits is the bits actually used by the second HARQ ACK information number; the first HARQ ACK information and the second HARQ ACK information are combined into the HARQ ACK information, and fed back to the base station.
  • determining the second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first number of bits includes: determining the second number of bits required for the HARQ ACK information according to the feedback configuration of the HARQ ACK information ; If the second number of bits is greater than the first number of bits, and the HARQ ACK information is configured with CBG, then only the second HARQ ACK information is determined according to the transport block; or, if the second number of bits is greater than the the first number of bits, and the HARQ ACK information is configured with HARQ ACK space division bundling, the second HARQ ACK information is determined only according to the HARQ ACK space division bundling; or, if the second number of bits is greater than the first number of bits, and the HARQ ACK information is configured with NDI, the second HARQ ACK information is determined only according to the HARQ ACK of the HARQ process.
  • determining the second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first number of bits includes: determining the second number of bits required for the HARQ ACK information according to the feedback configuration of the HARQ ACK information If the second number of bits is less than the first number of bits, and the HARQ ACK information is configured with CBG or HARQ ACK space division bundling, then it is determined that the second HARQ ACK information includes the HARQ ACK of the HARQ process, The remaining bits are NACK; if the second number of bits is less than the first number of bits, and the HARQ ACK information is configured with NDI, then it is determined that the second HARQ ACK information includes the HARQ ACK of the HARQ process, and the remaining bits are Fixed value.
  • the HARQ ACK priority indication information indicates that the HARQ ACK information of HARQ processes of all priorities is not to be fed back; the HARQ ACK information being fed back to the base station at least according to the HARQ ACK priority indication information includes: For the HARQ ACK information of the designated priority, determine the third HARQ ACK information according to the number of bits required to feed back the HARQ ACK information; for the HARQ ACK information whose priority is not the designated priority, feed back the HARQ ACK information according to the described need The number of bits required for the ACK information is filled with a fixed value to obtain the fourth HARQ ACK information; the third HARQ ACK information and the fourth HARQ ACK information are combined into the HARQ ACK information, and fed back to the base station.
  • the HARQ ACK priority indication information indicates to feed back the HARQ ACK information of HARQ processes of all priorities; the HARQ ACK information fed back to the base station at least according to the HARQ ACK priority indication information includes: Describe the HARQ ACK information of the designated priority, and generate the corresponding fifth HARQ ACK information; for the HARQ ACK information whose priority is not the designated priority, generate the corresponding sixth HARQ ACK information; give priority to feeding back the fifth HARQ ACK information , and then feed back the sixth HARQ ACK information.
  • an embodiment of the present invention also discloses a HARQ ACK information feedback method.
  • the HARQ ACK information feedback method includes: determining HARQ ACK priority indication information, where the HARQ ACK priority indication information is used to indicate whether Feedback HARQ ACK information of HARQ processes of all priorities; send downlink control signaling that triggers the generation of HARQ ACK information, and the downlink control signaling includes HARQ ACK priority indication information for the user equipment at least according to the HARQ ACK priority The indication information feeds back HARQ ACK information to the base station.
  • the embodiment of the present invention also discloses a HARQ ACK information feedback device.
  • the HARQ ACK information feedback device includes: a downlink control signaling receiving module, used for receiving downlink control signaling that triggers the generation of HARQ ACK information; HARQ ACK priority indication information is determined module, used to determine the HARQ ACK priority indication information in the downlink control signaling, the HARQ ACK priority indication information is used to indicate whether to feed back the HARQ ACK information of the HARQ processes of all priorities; the HARQ ACK information feedback module, used to feed back HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
  • the embodiment of the present invention also discloses a HARQ ACK information feedback device.
  • the HARQ ACK information feedback device includes: a HARQ ACK priority indication information configuration module, which is used to determine the HARQ ACK priority indication information, and the HARQ ACK priority indication information is used for is used to indicate whether to feed back HARQ ACK information of HARQ processes of all priorities; a downlink control signaling sending module is used to send downlink control signaling that triggers the generation of HARQ ACK information, and the downlink control signaling includes HARQ ACK priority indication information, For the user equipment to feed back HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
  • the embodiment of the present invention also discloses a storage medium on which a computer program is stored, and when the computer program is run by a processor, the steps of the HARQ ACK information feedback method are executed.
  • An embodiment of the present invention further discloses a user equipment, including a memory and a processor, where the memory stores a computer program that can be run on the processor, and the processor executes the HARQ when running the computer program The steps of the ACK information feedback method.
  • An embodiment of the present invention further discloses a base station, including a memory and a processor, the memory stores a computer program that can be run on the processor, and the processor executes the HARQ ACK when the processor runs the computer program The steps of the information feedback method.
  • the user equipment receives downlink control signaling that triggers the generation of HARQ ACK information; determines the HARQ ACK priority indication information in the downlink control signaling, and the HARQ ACK priority indication information is used to indicate whether to feed back all HARQ ACK information of the HARQ process of the priority; HARQ ACK information is fed back to the base station at least according to the HARQ ACK priority indication information.
  • HARQ processes have different priorities, and through the HARQ ACK priority indication information, the user equipment can determine whether to feed back HARQ ACK information of HARQ processes of all priorities, or only feedback HARQ ACK information of specified priorities, Improve the flexibility of HARQ ACK information feedback.
  • the HARQ ACK priority indication information indicates to feed back the HARQ ACK information of HARQ processes of all priorities; the HARQ ACK information fed back to the base station at least according to the HARQ ACK priority indication information includes: determining the HARQ ACK information of all HARQ processes The maximum value in the number of bits required for the ACK information; the HARQ ACK information of all HARQ processes is determined according to the maximum value, and the HARQ ACK information is fed back to the base station.
  • the maximum value of the required number of bits is used to determine the HARQ ACK information of all HARQ processes, which can ensure that the HARQ ACK information of all HARQ processes can be accurately and completely fed back to the base station, and realize the HARQ process of all priorities.
  • the second HARQ ACK information is determined according to the feedback configuration of the HARQ ACK information and the first number of bits, and the first number of bits is the The number of bits actually used for the second HARQ ACK message.
  • the number of bits required for the HARQ ACK information of the designated priority indicated in the downlink control signaling is taken as the number of bits actually used by the HARQ ACK information of the HARQ processes of all priorities, and combined with the feedback configuration of the HARQ ACK information Determining the content contained in the actually sent HARQ ACK information can reduce the actual amount of transmitted data on the basis of ensuring the integrity of the HARQ ACK information.
  • the fifth HARQ ACK information is fed back first, and then the sixth HARQ ACK information is fed back.
  • the embodiment of the present invention can also ensure that the HARQ ACK information of the designated priority can be preferentially fed back to the base station, so that the base station can preferentially decode the HARQ ACK information and improve HARQ Reliability of ACK information.
  • FIG. 1 is a flowchart of a method for feeding back HARQ ACK information according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a specific implementation of step S103 shown in FIG. 1;
  • FIG. 3 is a flowchart of another specific implementation of step S103 shown in FIG. 1;
  • Fig. 4 is a flow chart of a specific implementation manner of step S303 shown in Fig. 3;
  • FIG. 5 is a flowchart of another specific implementation manner of step S103 shown in FIG. 1;
  • FIG. 6 is a schematic structural diagram of an apparatus for feeding back HARQ ACK information according to an embodiment of the present invention.
  • the current type 3 HARQ ACK codebook does not support the generation of type 3 HARQ ACK CBs in the presence of HARQ ACKs with different priorities.
  • FIG. 1 is a flowchart of a method for feeding back HARQ ACK information according to an embodiment of the present invention.
  • the HARQ ACK information feedback method can be used on the user equipment (User Equipment, UE) side, that is, the user equipment can perform each step of the above method.
  • UE User Equipment
  • the HARQ ACK information feedback method may include the following steps:
  • Step S101 receive downlink control signaling that triggers the generation of HARQ ACK information
  • Step S102 Determine HARQ ACK priority indication information in the downlink control signaling, where the HARQ ACK priority indication information is used to indicate whether to feed back HARQ ACK information of HARQ processes of all priorities;
  • Step S103 Feed back the HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
  • the downlink control signaling may be configured by the base station and sent to the user equipment, and the downlink control signaling includes HARQ ACK priority indication information.
  • the downlink control signaling can trigger the UE to generate type 3 HARQ ACK information.
  • the user equipment can learn whether the generated HARQ ACK information is for HARQ processes of all priorities or for HARQ processes of a specific priority.
  • the base station may carry the above-mentioned information related to the specific priority in the downlink control signaling, for example, the downlink control signaling includes priority 0.
  • the UE receives the downlink control signaling and triggers the generation of a type 3 HARQ ACK CB.
  • the HARQ ACK information contained in the type 3 HARQ ACK CB is determined by the UE according to the HARQ ACK priority indication information. Specifically, it may include HARQ ACK information of HARQ processes of all priorities, or HARQ ACK information of a specific priority.
  • the HARQ ACK information has different priorities
  • the HARQ ACK priority indication information enables the user equipment to determine whether to feed back the HARQ ACK information of HARQ processes of all priorities, or to feed back only the HARQ ACK information of the specified priority. , to improve the flexibility of HARQ ACK information feedback.
  • step S103 may specifically include the following steps:
  • Step S201 determine the maximum value in the number of bits required for the HARQ ACK information of all HARQ processes
  • Step S202 Determine the HARQ ACK information of each HARQ process according to the maximum value, and feed back the HARQ ACK information to the base station.
  • the UE Since the UE needs to feed back HARQ ACK information of HARQ processes of all priorities, and the feedback configuration of HARQ ACK information of different priorities may be different, the number of bits required for its HARQ ACK information is also different, so a bit value needs to be determined to At the same time, it meets the requirements of HARQ ACK information of different priorities.
  • the maximum value of the number of bits required by the HARQ ACK information of all HARQ processes is used as a unified bit value for the HARQ ACK information of different priorities.
  • the feedback configuration of the HARQ ACK information refers to the configuration of the HARQ ACK feedback corresponding to the priority of the HARQ ACK transmission of the PDSCH in the HARQ process, such as whether the HARQ ACK information is configured with a Code Block Group (CBG), new Data Indicator (New Data Indicator, NDI), Spatial Bundling, etc.
  • CBG Code Block Group
  • NDI new Data Indicator
  • Spatial Bundling Spatial Bundling
  • step S201 may include the following steps: determining the maximum value of the number of CBGs when the CBG is configured and the number of transport blocks when the CBG is not configured.
  • the CBG configurations of HARQ ACK information of different priorities are different, for example, priority (Priority) 0 is configured with CBG, and priority 1 is not configured with CBG.
  • priority (Priority) 0 is configured with CBG
  • priority 1 is not configured with CBG.
  • the maximum value of the number of CBGs when CBG is configured and the number of transmission blocks (TB) when CBG is not configured can be used as a unified bit value to carry HARQ ACK information of different priorities.
  • the HARQ ACK information for HARQ processes 0 and 2 is high priority
  • the HARQ ACK information for HARQ processes 1 and 3 is low priority.
  • the specific configuration is that there is only one TB and no NDI is reported.
  • the high-priority HARQ ACK information is not configured with CBG
  • the low-priority HARQ ACK information is configured with 4 CBGs.
  • the HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 1110/0000/1110/0000.
  • step S201 may include the following steps: determining the maximum number of bits required when HARQ ACK spatial division bundling (HARQ ACK Spatial Bundling) is configured and the number of bits required when HARQ ACK spatial division bundling is not configured value.
  • the HARQ ACK space division bundling refers to XORing the HARQ ACKs of two transmission blocks (Transmission Block, TB).
  • whether HARQ ACK space division bundling is configured for each priority is different.
  • the maximum number of bits required for the HARQ ACK information for which the HARQ ACK space division binding is configured and the number of bits required for the HARQ ACK information for which the HARQ ACK space division binding is not configured can be used as a unified bit value. It is used to carry HARQ ACK information of different priorities. Specifically, the number of bits required for HARQ ACK information configured with bundling is 1 bit, and the number of bits required for HARQ ACK information without bundling is 2 bits.
  • the unified bit value is 2, that is, max(2, 1).
  • HARQ processes there are 4 HARQ processes in total, wherein the HARQ ACK information for HARQ processes 0 and 2 is high priority, and the HARQ ACK information for HARQ processes 1 and 3 is low priority.
  • the specific configuration is that there are 2 TBs, no NDI is reported, no bundle is configured for the high-priority HARQ ACK information, and a bundle is configured for the low-priority HARQ ACK information.
  • the HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 00100010.
  • step S201 may further include the following steps: determining the maximum number of bits required for the HARQ ACK information configured with NDI and the required number of bits of the HARQ ACK information without NDI.
  • whether NDI is configured for each priority is different.
  • the maximum number of bits required for HARQ ACK information with NDI configured and the maximum number of bits required for HARQ ACK information without NDI can be used as a unified bit value to carry HARQ ACK information of different priorities .
  • the number of bits required for HARQ ACK information configured with NDI is 2 bits
  • the number of bits required for HARQ ACK information without NDI configuration is 1 bit
  • the uniform bit value is 2, that is, max(1, 2).
  • HARQ processes there are 4 HARQ processes in total, wherein the HARQ ACK information for HARQ processes 0 and 2 is high priority, and the HARQ ACK information for HARQ processes 1 and 3 is low priority.
  • the specific configuration is that no CBG is configured, there is only one TB, NDI is reported with high priority, and NDI is not reported with low priority.
  • the HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 00/00/00/00.
  • the downlink control signaling further indicates a designated priority, where the designated priority is the priority of the HARQ ACK information that needs to be fed back.
  • the assigned priority is priority p as indicated in the DCI.
  • step S103 shown in FIG. 1 may further include the following steps:
  • Step S301 determine the first number of bits required for the HARQ ACK information whose priority is the specified priority
  • Step S302 for the HARQ ACK information whose priority is the specified priority, determine the first HARQ ACK information according to the first number of bits;
  • Step S303 For the HARQ ACK information whose priority is not the specified priority, determine the second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first number of bits, where the first number of bits is the The number of bits actually used in the second HARQ ACK information;
  • Step S304 Combine the first HARQ ACK information and the second HARQ ACK information into the HARQ ACK information, and feed it back to the base station.
  • the first number of bits refers to the number of bits commonly used for HARQ ACK information of different priorities.
  • step S303 shown in FIG. 3 may include the following steps:
  • Step S401 Determine the second number of bits required for the HARQ ACK information according to the feedback configuration of the HARQ ACK information;
  • Step S402 If the second number of bits is greater than the first number of bits, and the HARQ ACK information is configured with CBG, then the second HARQ ACK information is determined only according to the transport block.
  • the required number of bits can be determined according to its specific configuration, and the number of bits actually used, that is, the first number of bits, can be compared.
  • Determine the final feedback data content that is, the second HARQ ACK information. That is to say, the number N of bits indicated by the priority p in the DCI signaling that triggers the generation of the type 3 HARQ ACK shall prevail, and the size of N depends on the CBG configuration of the HARQ ACK information of the priority p.
  • the HARQ ACK information different from the priority p also places the useful HARQ ACK information.
  • the required bit is greater than N, only TB-level information is fed back; when it is less than N, more bits are filled with NACK.
  • the trigger priority is high priority
  • the number of HARQ ACK CB bits depends on the high priority CBG configuration; if the trigger priority is low priority, then the HARQ ACK CB The number of bits depends on the low priority CBG configuration.
  • the designated priority indicated in the DCI is a high priority, that is, the triggered priority is a high priority.
  • the high-priority HARQ ACK information is not configured with CBG, and the first bit is 1.
  • the HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 0000. Wherein, the first HARQ ACK information is 00, and the second HARQ ACK information is 00.
  • the priority of the trigger is low priority, and the number of CBGs configured in the HARQ ACK information of the low priority is 4.
  • the HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 1110/0000/1110/0000.
  • the first HARQ ACK information is 1100/1100
  • the second HARQ ACK information is 0000/0000.
  • step S402 may be replaced by the following step: if the second number of bits is greater than the first number of bits, and the HARQ ACK information is configured with HARQ ACK space division bundling, then only according to the HARQ ACK space division bundling determines the second HARQ ACK information.
  • the second HARQ ACK information is determined according to whether HARQ ACK space division bundling is configured.
  • the trigger priority is high priority
  • no bundle is configured for high priority
  • the first bit number is 2.
  • the HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 00100010.
  • the first HARQ ACK information is 00/00
  • the second HARQ ACK information is 10/10.
  • the trigger priority is low priority
  • bundle is configured with low priority
  • the first bit is 1.
  • the HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 0000.
  • the first HARQ ACK information is 00
  • the second HARQ ACK information is 00.
  • step S402 may also be replaced with the following step: if the second number of bits is greater than the first number of bits, and the HARQ ACK information is configured with NDI, ACK determines the second HARQ ACK information.
  • the second HARQ ACK information is determined according to whether NDI is configured.
  • the trigger priority is high priority
  • the high priority is reported to NDI
  • the first bit number is 2.
  • the HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 00/00/00/00.
  • the first HARQ ACK information is 00/00
  • the second HARQ ACK information is 00/00.
  • the priority of the trigger is low priority, the priority is not reported to NDI, and the first bit number is 1.
  • the HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 0/0/0/0. Wherein, the first HARQ ACK information is 00, and the second HARQ ACK information is 00.
  • step S103 shown in FIG. 1 may include the following steps:
  • Step S501 for the HARQ ACK information whose priority is the specified priority, determine the third HARQ ACK information according to the number of bits required to feed back the HARQ ACK information;
  • Step S502 for the HARQ ACK information whose priority is not the specified priority, fill a fixed value according to the number of bits required to feed back the HARQ ACK information, so as to obtain the fourth HARQ ACK information;
  • Step S503 Combine the third HARQ ACK information and the fourth HARQ ACK information into the HARQ ACK information, and feed it back to the base station.
  • one trigger to generate type 3 HARQ ACK signaling can only generate the HARQ ACK information of the HARQ process indicating the corresponding priority in the DCI, which is different from indicating the priority.
  • the HARQ ACK information of the HARQ process is filled with NACK. If NDI is reported at the same time, it is different from the NDI information of the HARQ process indicating the priority and filled with a fixed value (such as 0 or 1).
  • HARQ processes 0 and 2 are high priority, and HARQ processes 1 and 3 are low priority. It is assumed that the UEs all decode correctly (ACK, denoted by 0).
  • the specific configuration is that no CBG is configured, there is only one TB, and NDI is not reported.
  • the HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 0101.
  • the HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 0000111100001111.
  • the HARQ ACK priority indication information indicates to feed back HARQ ACK information of HARQ processes of all priorities.
  • Step S103 shown in FIG. 1 may include the following steps:
  • the fifth HARQ ACK information is fed back first, and then the sixth HARQ ACK information is fed back.
  • multiple subcodebooks can be generated. For example, when there are two priorities, high priority and low priority, a high priority can be generated respectively.
  • the subcodebook whose priority is the HARQ ACK information of the specified priority may be placed first, that is, the fifth HARQ ACK information is preferentially fed back.
  • the high-priority type 3 HARQ ACK information may be generated and placed first according to the high-priority configuration; the low-priority configuration may be generated according to the low-priority configuration.
  • the embodiment of the present invention also discloses another HARQ ACK information feedback method, which is used at the base station side.
  • the feedback method may specifically include the following steps: determining HARQ ACK priority indication information, where the HARQ ACK priority indication information is used to indicate Whether to feed back HARQ ACK information of HARQ processes of all priorities; send downlink control signaling that triggers the generation of HARQ ACK information, and the downlink control signaling includes HARQ ACK priority indication information for the user equipment to prioritize at least according to the HARQ ACK
  • the level indication information feeds back HARQ ACK information to the base station.
  • the base station can configure DCI to indicate whether the UE feeds back HARQ ACK information of HARQ processes of all priorities.
  • an embodiment of the present invention further discloses a HARQ ACK information feedback apparatus 60, which is used for the user equipment side.
  • the HARQ ACK information feedback device 60 may specifically include a downlink control signaling receiving module 601, a priority indication information determining module 602, and a HARQ ACK information feedback module 603.
  • the downlink control signaling receiving module 601 is used to receive downlink control signaling that triggers the generation of HARQ ACK information; the priority indication information determining module 602 is used to determine the HARQ ACK priority indication information in the downlink control signaling, the The HARQ ACK priority indication information is used to indicate whether to feed back the HARQ ACK information of HARQ processes of all priorities; the HARQ ACK information feedback module 603 is used to feed back the HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
  • the embodiment of the present invention also discloses another HARQ ACK information feedback device, which is used at the base station side.
  • the HARQ ACK information feedback apparatus may include a HARQ ACK priority indication information configuration module (not shown), used to determine HARQ ACK priority indication information, the HARQ ACK priority indication information is used to indicate whether to feed back HARQ processes of all priorities HARQ ACK information; downlink control signaling sending module (not shown), used to send downlink control signaling triggering the generation of HARQ ACK information, the downlink control signaling includes HARQ ACK priority indication information, for the user equipment at least Feedback HARQ ACK information to the base station according to the HARQ ACK priority indication information.
  • the embodiment of the present invention further discloses a storage medium, which is a computer-readable storage medium, and stores a computer program thereon. When the computer program runs, the steps of the methods shown in FIG. 1 to FIG. 5 can be executed.
  • the storage medium may include ROM, RAM, magnetic or optical disks, and the like.
  • the storage medium may also include a non-volatile memory (non-volatile) or a non-transitory (non-transitory) memory and the like.
  • the embodiment of the present invention further discloses a user equipment, the user equipment may include a memory and a processor, and the memory stores a computer program that can run on the processor.
  • the processor may execute the steps of the methods shown in FIGS. 1 to 5 when the computer program is executed.
  • the user equipment includes but is not limited to terminal equipment such as mobile phones, computers, and tablet computers.
  • An embodiment of the present invention further discloses a base station, where the base station may include a memory and a processor, and the memory stores a computer program that can run on the processor.
  • the processor runs the computer program, the steps of the above-mentioned feedback method performed on the base station side may be executed.

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Abstract

一种HARQ ACK信息反馈方法及装置、存储介质、用户设备、基站，HARQ ACK信息反馈方法包括：接收触发生成HARQ ACK信息的下行控制信令；确定所述下行控制信令中的HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。本发明技术方案能够在存在不同优先级的HARQ ACK情况下生成HARQ ACK信息。

Description

HARQ ACK信息反馈方法及装置、存储介质、用户设备、基站
本申请要求2020年7月20日提交中国专利局、申请号为202010699753.1、发明名称为“HARQ ACK信息反馈方法及装置、存储介质、用户设备、基站”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，尤其涉及一种HARQ ACK信息反馈方法及装置、存储介质、用户设备、基站。
背景技术
新无线技术(New Radio,NR)中，类型3的混合式自动重传请求(Hybrid Automatic Repeat request,HARQ)确认(ACKnowledge,ACK)码本(也称为one-shot HARQ ACK反馈)，是指UE收到触发one-shot HARQ ACK的指令后，将所有配置小区的HARQ进程(process)的HARQ ACK同时反馈给基站。同时若当前小区配置为码块组(Code Block Group,CBG)，则反馈的HARQ ACK是每个CBG的HARQ ACK信令。若配置为新数据指示(New Data Indicator,NDI)上报，则将每个HARQ process的HARQ ACK及NDI一起进行上报，且HARQ ACK在先，NDI在后。若没有配置NDI上报，则UE会根据是否上报过对应服务小区某HARQ process一个TB的HARQ ACK来确定HARQ ACK信息。具体地，如果上报过且后续没有检测到一个DCI格式调度对应服务小区某HARQ process一个传输块(Transmission Block,TB)的物理下行共享信道(Physical Downlink Shared Channel,PDSCH)或接收过半永久调度(Persistent Scheduling,SPS)PDSCH，则反馈NACK；否则上报对应的HARQ ACK信息。
但是，目前type 3 HARQ ACK码本不支持存在不同优先级的 HARQ ACK情况下生成type 3 HARQ ACK码本(Code Book,CB)。
发明内容
本发明解决的技术问题是如何在存在不同优先级的HARQ ACK情况下生成HARQ ACK信息。
为解决上述技术问题，本发明实施例提供一种HARQ ACK信息反馈方法，HARQ ACK信息反馈方法包括：接收触发生成HARQ ACK信息的下行控制信令；确定所述下行控制信令中的HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。
可选的，所述HARQ ACK优先级指示信息指示反馈所有优先级的HARQ进程的HARQ ACK信息；所述至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息包括：确定所有HARQ进程的HARQ ACK信息所需的比特数中的最大值；按照所述最大值确定所有HARQ进程的HARQ ACK信息，并向基站反馈所述HARQ ACK信息。
可选的，各个优先级是否配置不同的CBG传输或重传信息，所述确定所有HARQ进程的HARQ ACK信息所需的比特数中的最大值包括：确定配置CBG时CBG个数与未配置CBG时传输块个数的最大值。
可选的，各个优先级是否配置HARQ ACK空分绑定不同，所述确定所有HARQ进程的HARQ ACK信息所需的比特数中的最大值包括：确定配置HARQ ACK空分绑定的HARQ ACK信息的所需的比特数与未配置HARQ ACK空分绑定的HARQ ACK信息的所需的比特数的最大值。
可选的，各个优先级是否配置NDI不同，所述确定所有HARQ进程的HARQ ACK信息所需的比特数中的最大值包括：确定配置 NDI的HARQ ACK信息的所需的比特数与未配置NDI的HARQ ACK信息的所需的比特数的最大值。
可选的，所述下行控制信令还指示指定优先级，所述指定优先级为需要反馈HARQ ACK信息的优先级。
可选的，所述HARQ ACK优先级指示信息指示反馈所有优先级的HARQ进程的HARQ ACK信息；所述至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息包括：确定优先级为所述指定优先级的HARQ ACK信息所需的第一比特数；对于优先级为所述指定优先级的HARQ ACK信息，按照所述第一比特数确定第一HARQ ACK信息；对于优先级不是所述指定优先级的HARQ ACK信息，则根据所述HARQ ACK信息的反馈配置以及所述第一比特数确定第二HARQ ACK信息，所述第一比特数为所述第二HARQ ACK信息实际使用的比特数；将所述第一HARQ ACK信息和所述第二HARQ ACK信息合并为所述HARQ ACK信息，并反馈至所述基站。
可选的，根据所述HARQ ACK信息的反馈配置以及所述第一比特数确定第二HARQ ACK信息包括：根据所述HARQ ACK信息的反馈配置确定所述HARQ ACK信息所需的第二比特数；如果所述第二比特数大于所述第一比特数，且所述HARQ ACK信息配置CBG，则仅根据传输块确定所述第二HARQ ACK信息；或者，如果所述第二比特数大于所述第一比特数，且所述HARQ ACK信息配置HARQ ACK空分绑定，则仅根据所述HARQ ACK空分绑定确定所述第二HARQ ACK信息；或者，如果所述第二比特数大于所述第一比特数，且所述HARQ ACK信息配置NDI，则仅根据所述HARQ进程的HARQ ACK确定所述第二HARQ ACK信息。
可选的，根据所述HARQ ACK信息的反馈配置以及所述第一比特数确定第二HARQ ACK信息包括：根据所述HARQ ACK信息的反馈配置确定所述HARQ ACK信息所需的第二比特数；如果所述第二比特数小于所述第一比特数，且所述HARQ ACK信息配置CBG 或HARQ ACK空分绑定，则确定所述第二HARQ ACK信息包括所述HARQ进程的HARQ ACK，剩余比特为NACK；如果所述第二比特数小于所述第一比特数，且所述HARQ ACK信息配置NDI，则确定所述第二HARQ ACK信息包括所述HARQ进程的HARQ ACK，剩余比特为固定值。
可选的，所述HARQ ACK优先级指示信息指示不反馈所有优先级的HARQ进程的HARQ ACK信息；所述至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息包括：对于优先级为所述指定优先级的HARQ ACK信息，按照所述需要反馈HARQ ACK信息所需的比特数确定第三HARQ ACK信息；对于优先级不是所述指定优先级的HARQ ACK信息，按照所述需要反馈HARQ ACK信息所需的比特数填充固定值，以得到第四HARQ ACK信息；将所述第三HARQ ACK信息和所述第四HARQ ACK信息合并为所述HARQ ACK信息，并反馈至所述基站。
可选的，所述HARQ ACK优先级指示信息指示反馈所有优先级的HARQ进程的HARQ ACK信息；所述至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息包括：对于优先级为所述指定优先级的HARQ ACK信息，生成对应的第五HARQ ACK信息；对于优先级不是所述指定优先级的HARQ ACK信息，生成对应的第六HARQ ACK信息；优先反馈所述第五HARQ ACK信息，再反馈所述第六HARQ ACK信息。
为解决上述技术问题，本发明实施例还公开了一种HARQ ACK信息反馈方法，所述HARQ ACK信息反馈方法包括：确定HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；发送触发生成HARQ ACK信息的下行控制信令，所述下行控制信令包括HARQ ACK优先级指示信息，以供用户设备至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。
本发明实施例还公开了一种HARQ ACK信息反馈装置，HARQ ACK信息反馈装置包括：下行控制信令接收模块，用以接收触发生成HARQ ACK信息的下行控制信令；HARQ ACK优先级指示信息确定模块，用以确定所述下行控制信令中的HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；HARQ ACK信息反馈模块，用以至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。
本发明实施例还公开了一种HARQ ACK信息反馈装置，HARQ ACK信息反馈装置包括：HARQ ACK优先级指示信息配置模块，用以确定HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；下行控制信令发送模块，用以发送触发生成HARQ ACK信息的下行控制信令，所述下行控制信令包括HARQ ACK优先级指示信息，以供用户设备至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。
本发明实施例还公开了一种存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行所述HARQ ACK信息反馈方法的步骤。
本发明实施例还公开了一种用户设备，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行所述HARQ ACK信息反馈方法的步骤。
本发明实施例还公开了一种基站，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行所述HARQ ACK信息反馈方法的步骤。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
本发明技术方案中，用户设备接收触发生成HARQ ACK信息的 下行控制信令；确定所述下行控制信令中的HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。本发明技术方案中，HARQ进程具备不同优先级，而通过HARQ ACK优先级指示信息，能够使得用户设备确定反馈所有优先级的HARQ进程的HARQ ACK信息，还是仅反馈指定优先级的HARQ ACK信息，提升HARQ ACK信息反馈的灵活性。
进一步地，所述HARQ ACK优先级指示信息指示反馈所有优先级的HARQ进程的HARQ ACK信息；所述至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息包括：确定所有HARQ进程的HARQ ACK信息所需的比特数中的最大值；按照所述最大值确定所有HARQ进程的HARQ ACK信息，并向基站反馈所述HARQ ACK信息。本实施例中使用所需的比特数中的最大值来确定所有HARQ进程的HARQ ACK信息，能够保证所有HARQ进程的HARQ ACK信息均能够准确完整地反馈给基站，实现所有优先级的HARQ进程的HARQ ACK信息反馈的精准性。
进一步地，对于优先级不是所述指定优先级的HARQ ACK信息，则根据所述HARQ ACK信息的反馈配置以及所述第一比特数确定第二HARQ ACK信息，所述第一比特数为所述第二HARQ ACK信息实际使用的比特数。本实施例中将下行控制信令中指示的指定优先级的HARQ ACK信息所需的比特数来作为所有优先级的HARQ进程的HARQ ACK信息实际使用的比特数，并结合HARQ ACK信息的反馈配置确定实际发送的HARQ ACK信息所包含的内容，可以在保证HARQ ACK信息完整性的基础上，减小实际传输数据量。
进一步地，优先反馈所述第五HARQ ACK信息，再反馈所述第六HARQ ACK信息。本发明实施例在保证反馈所有优先级的HARQ进程的HARQ ACK信息的基础上，还能够保证指定优先级的HARQ  ACK信息能够优先被反馈给基站，使得基站能够优先解码该HARQ ACK信息，提升HARQ ACK信息的可靠性。
附图说明
图1是本发明实施例一种HARQ ACK信息反馈方法的流程图；
图2是图1所示步骤S103的一种具体实施方式的流程图；
图3是图1所示步骤S103的另一种具体实施方式的流程图；
图4是图3所示步骤S303的一种具体实施方式的流程图；
图5是图1所示步骤S103的又一种具体实施方式的流程图；
图6是本发明实施例一种HARQ ACK信息反馈装置的结构示意图。
具体实施方式
如背景技术中所述，目前type 3 HARQ ACK码本不支持存在不同优先级的HARQ ACK情况下生成type 3 HARQ ACK CB。
为使本发明的上述目的、特征和优点能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
图1是本发明实施例一种HARQ ACK信息反馈方法的流程图。
所述HARQ ACK信息反馈方法可以用于用户设备(User Equipment,UE)侧，也即可以由用户设备执行上述方法的各个步骤。
所述HARQ ACK信息反馈方法可以包括以下步骤：
步骤S101：接收触发生成HARQ ACK信息的下行控制信令；
步骤S102：确定所述下行控制信令中的HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；
步骤S103：至少根据所述HARQ ACK优先级指示信息向基站反 馈HARQ ACK信息。
需要指出的是，本实施例中各个步骤的序号并不代表对各个步骤的执行顺序的限定。
本实施例中，下行控制信令可以是由基站配置并发送给用户设备的，下行控制信令中包括HARQ ACK优先级指示信息。所述下行控制信令能够触发UE生成type 3 HARQ ACK信息。通过HARQ ACK优先级指示信息用户设备可以获知生成的HARQ ACK信息是针对所有优先级的HARQ进程的还是针对特定优先级的HARQ进程的。
本领域技术人员可以理解的是，基站可以在下行控制信令携带上述特定优先级的相关信息，例如下行控制信令包括优先级0。
具体实施中，UE接收下行控制信令，触发生成type 3 HARQ ACK CB。type 3 HARQ ACK CB所包含的HARQ ACK信息是由UE根据HARQ ACK优先级指示信息确定的。具体可以包含所有优先级的HARQ进程的HARQ ACK信息，或者特定优先级的HARQ ACK信息。
本发明实施例中，HARQ ACK信息具备不同优先级，而通过HARQ ACK优先级指示信息，能够使得用户设备确定反馈所有优先级的HARQ进程的HARQ ACK信息，还是仅反馈指定优先级的HARQ ACK信息，提升HARQ ACK信息反馈的灵活性。
在一个非限制性的实施方式中，所述HARQ ACK优先级指示信息指示反馈所有优先级的HARQ进程的HARQ ACK信息。一并参照图1和图2，步骤S103具体可以包括以下步骤：
步骤S201：确定所有HARQ进程的HARQ ACK信息所需的比特数中的最大值；
步骤S202：按照所述最大值确定每个HARQ进程的HARQ ACK信息，并向基站反馈所述HARQ ACK信息。
由于UE需要反馈所有优先级的HARQ进程的HARQ ACK信息，并且不同优先级的HARQ ACK信息的反馈配置可能不同，导致其HARQ ACK信息所需的比特数也不同，因此需要确定一个比特数值，以同时满足不同优先级的HARQ ACK信息的需求。本实施例中，是将所有HARQ进程的HARQ ACK信息所需的比特数中的最大值作为统一的比特数值，供不同优先级的HARQ ACK信息来使用。
具体而言，HARQ ACK信息的反馈配置是指针对HARQ进程传输PDSCH的HARQ ACK的优先级所对应的HARQ ACK反馈的配置，例如HARQ ACK信息是否配置码块组(Code Block Group,CBG)、新数据指示(New Data Indicator,NDI)、空分绑定(SpatialBundling)等。
在一个具体实施例中，步骤S201可以包括以下步骤：确定配置CBG时CBG个数与未配置CBG时传输块个数的最大值。
本实施例中，不同优先级的HARQ ACK信息的CBG配置不同，如优先级(Priority)0配置CBG，优先级1未配置CBG。这种情况下，可以将配置CBG时CBG个数与未配置CBG时传输块(Transmission Block,TB)个数的最大值作为统一的比特数值，用于承载不同优先级的HARQ ACK信息。
在一个具体的例子中，如下表1所示，共有4个HARQ process，其中针对HARQ process 0和2的HARQ ACK信息是高优先级，针对HARQ process 1和3的HARQ ACK信息是低优先级。具体配置为只有一个TB，不上报NDI，高优先级的HARQ ACK信息没有配置CBG，低优先级的HARQ ACK信息配置的CBG个数为4。UE上报的对应服务小区全部HARQ process的HARQ ACK信息为1110/0000/1110/0000。
表1
Figure PCTCN2021106662-appb-000001
Figure PCTCN2021106662-appb-000002
在一个具体实施例中，步骤S201可以包括以下步骤：确定配置HARQ ACK空分绑定(HARQ ACK SpatialBundling)时所需的比特数与未配置HARQ ACK空分绑定时所需的比特数的最大值。其中，HARQ ACK空分绑定是指将两个传输块(Transmission Block,TB)的HARQ ACK做异或操作。
本实施例中，各个优先级是否配置HARQ ACK空分绑定不同。这种情况下，可以将配置HARQ ACK空分绑定的HARQ ACK信息所需的比特数与未配置HARQ ACK空分绑定的HARQ ACK信息所需的比特数的最大值作为统一的比特数值，用于承载不同优先级的HARQ ACK信息。具体而言，配置bundling的HARQ ACK信息所需的比特数为1bit，没有配置bundling的HARQ ACK信息所需的比特数为2bit，统一的比特数值为2，也即max(2，1)。
在一个具体的例子中，如下表2所示，共有4个HARQ process，其中针对HARQ process 0和2的HARQ ACK信息是高优先级，针对HARQ process 1和3的HARQ ACK信息是低优先级。具体配置为有2个TB，不上报NDI，高优先级HARQ ACK信息没有配置bundle，低优先级HARQ ACK信息配置了bundle。UE上报的对应服务小区全部HARQ process的HARQ ACK信息为00100010。
表2
Figure PCTCN2021106662-appb-000003
在一个具体实施例中，步骤S201还可以包括以下步骤：确定配置NDI的HARQ ACK信息的所需的比特数与未配置NDI的HARQ  ACK信息的所需的比特数的最大值。
本实施例中，各个优先级是否配置NDI不同。这种情况下，可以将配置NDI的HARQ ACK信息所需的比特数与未配置NDI的HARQ ACK信息所需的比特数的最大值作为统一的比特数值，用于承载不同优先级的HARQ ACK信息。具体而言，配置NDI的HARQ ACK信息所需的比特数为2bit，没有配置NDI的HARQ ACK信息所需的比特数为1bit，统一的比特数值为2，也即max(1，2)。
在一个具体的例子中，如下表3所示，共有4个HARQ process，其中针对HARQ process 0和2的HARQ ACK信息是高优先级，针对HARQ process 1和3的HARQ ACK信息是低优先级。具体配置为没有配置CBG，只有一个TB，高优先级上报NDI，低优先级不上报NDI。UE上报的对应服务小区全部HARQ process的HARQ ACK信息为00/00/00/00。
表3
Figure PCTCN2021106662-appb-000004
在本发明一个非限制性的实施例中，下行控制信令还指示指定优先级，所述指定优先级为需要反馈的HARQ ACK信息的优先级。如DCI中指示指定优先级为优先级p。
在一个非限制性的实施例中，请参照图3，图1所示步骤S103还可以包括以下步骤：
步骤S301：确定优先级为所述指定优先级的HARQ ACK信息所需的第一比特数；
步骤S302：对于优先级为所述指定优先级的HARQ ACK信息，按照所述第一比特数确定第一HARQ ACK信息；
步骤S303：对于优先级不是所述指定优先级的HARQ ACK信息，则根据所述HARQ ACK信息的反馈配置以及所述第一比特数确定第二HARQ ACK信息，所述第一比特数为所述第二HARQ ACK信息实际使用的比特数；
步骤S304：将所述第一HARQ ACK信息和所述第二HARQ ACK信息合并为所述HARQ ACK信息，并反馈至所述基站。
本实施例中，第一比特数是指供不同优先级的HARQ ACK信息共同使用的比特数。
在一个具体实施例中，请参照图4，图3所示步骤S303可以包括以下步骤：
步骤S401：根据所述HARQ ACK信息的反馈配置确定所述HARQ ACK信息所需的第二比特数；
步骤S402：如果所述第二比特数大于所述第一比特数，且所述HARQ ACK信息配置CBG，则仅根据传输块确定所述第二HARQ ACK信息。
本实施例中，对于优先级不是所述指定优先级的HARQ ACK信息，按照其具体配置可以确定其所需的比特数，并与实际使用的比特数，也即第一比特数进行比较，可以确定最终反馈的数据内容，也即第二HARQ ACK信息。也就是说，以触发生成type 3 HARQ ACK的DCI信令中优先级p指示的比特个数N为准，N的大小取决于优先级p的HARQ ACK信息的CBG配置。而不同于优先级p的HARQ ACK信息同样放置有用HARQ ACK信息。当所需要bit大于N时，只反馈TB级信息；当小于N时，多的bit填充NACK。例如，触发的优先级为高优先级，则HARQ ACK CB比特个数(也即第一比特数)决取于高优先级的CBG配置；如触发的优先级为低优先级，则HARQ ACK CB比特个数决取于低优先级的CBG配置。
在一个具体的例子中，请继续参照表1，DCI中指示的指定优先 级为高优先级，也即触发的优先级为高优先级。高优先级的HARQ ACK信息没有配置CBG，第一比特数为1。UE上报的对应服务小区全部HARQ process的HARQ ACK信息为0000。其中，第一HARQ ACK信息为00，第二HARQ ACK信息为00。
或者，触发的优先级为低优先级，低优先级的HARQ ACK信息配置的CBG个数为4。UE上报的对应服务小区全部HARQ process的HARQ ACK信息为1110/0000/1110/0000。其中，第一HARQ ACK信息为1100/1100，第二HARQ ACK信息为0000/0000。
在另一个具体实施例中，步骤S402可以替换为以下步骤：如果所述第二比特数大于所述第一比特数，且所述HARQ ACK信息配置HARQ ACK空分绑定，则仅根据所述HARQ ACK空分绑定确定所述第二HARQ ACK信息。
与前述实施例不同的是，本实施例中是根据是否配置HARQ ACK空分绑定确定第二HARQ ACK信息。
在一个具体的例子中，请继续参照表2，触发的优先级为高优先级，高优先级没有配置bundle，第一比特数为2。UE上报的对应服务小区全部HARQ process的HARQ ACK信息为00100010。其中，第一HARQ ACK信息为00/00，第二HARQ ACK信息为10/10。
或者，触发的优先级为低优先级，低优先级配置了bundle，第一比特数为1。UE上报的对应服务小区全部HARQ process的HARQ ACK信息为0000。其中，第一HARQ ACK信息为00，第二HARQ ACK信息为00。
在又一个具体实施例中，步骤S402还可以替换为以下步骤：如果所述第二比特数大于所述第一比特数，且所述HARQ ACK信息配置NDI，则仅根据所述HARQ进程的HARQ ACK确定所述第二HARQ ACK信息。
与前述实施例不同的是，本实施例中是根据是否配置NDI确定 第二HARQ ACK信息。
在一个具体的例子中，请继续参照表3，触发的优先级为高优先级，高优先级上报NDI，第一比特数为2。UE上报的对应服务小区全部HARQ process的HARQ ACK信息为00/00/00/00。其中，第一HARQ ACK信息为00/00，第二HARQ ACK信息为00/00。
或者，触发的优先级为低优先级，优先级不上报NDI，第一比特数为1。UE上报的对应服务小区全部HARQ process的HARQ ACK信息为0/0/0/0。其中，第一HARQ ACK信息为00，第二HARQ ACK信息为00。
在一个非限制性的实施例中，所述HARQ ACK优先级指示信息指示不反馈所有优先级的HARQ进程的HARQ ACK信息。请参照图5，图1所示步骤S103可以包括以下步骤：
步骤S501：对于优先级为所述指定优先级的HARQ ACK信息，按照所述需要反馈HARQ ACK信息所需的比特数确定第三HARQ ACK信息；
步骤S502：对于优先级不是所述指定优先级的HARQ ACK信息，按照所述需要反馈HARQ ACK信息所需的比特数填充固定值，以得到第四HARQ ACK信息；
步骤S503：将所述第三HARQ ACK信息和所述第四HARQ ACK信息合并为所述HARQ ACK信息，并反馈至所述基站。
本实施例中，对于支持特定优先级的type 3 HARQ ACK CB，一次触发生成type 3 HARQ ACK信令可以仅生成此DCI中指示对应优先级的HARQ process的HARQ ACK信息，而不同于指示优先级的HARQ process的HARQ ACK信息填充NACK，若同时上报NDI则不同与指示优先级的HARQ process的NDI信息填充固定值(如0或1)。
在一个具体的例子中，请参照表4，共有4个HARQ process，其 中HARQ process 0和2是高优先级，HARQ process 1和3是低优先级。假设UE全部正确译码(ACK，用0表示)。具体配置为没有配置CBG，则只有一个TB，不上报NDI，UE上报的对应服务小区全部HARQ process的HARQ ACK信息为0101。
表4
Figure PCTCN2021106662-appb-000005
若配置CBG＝4，只有一个TB，不上报NDI，则UE上报的对应服务小区全部HARQ process的HARQ ACK信息为0000111100001111。
在另一个具体的例子中，请参照表5，若没有配置HARQ ACK-SpatialBundling，有2个TB，不上报NDI，UE上报的对应服务小区全部HARQ process的HARQ ACK信息为00110011。
表5
Figure PCTCN2021106662-appb-000006
请参照表6，若配置HARQ ACK-SpatialBundling，有2个TB，不上报NDI，UE上报的对应服务小区全部HARQ process的HARQ ACK信息为00100010。
表6
Figure PCTCN2021106662-appb-000007
Figure PCTCN2021106662-appb-000008
请参照表7，若没有配置CBG，只有一个TB，上报NDI，UE上报的对应服务小区全部HARQ process的HARQ ACK信息为00100010。
表7
Figure PCTCN2021106662-appb-000009
在本发明一个非限制性的实施例中，所述HARQ ACK优先级指示信息指示反馈所有优先级的HARQ进程的HARQ ACK信息。图1所示步骤S103可以包括以下步骤：
对于优先级为所述指定优先级的HARQ ACK信息，生成对应的第五HARQ ACK信息；
对于优先级不是所述指定优先级的HARQ ACK信息，生成对应的第六HARQ ACK信息；
优先反馈所述第五HARQ ACK信息，再反馈所述第六HARQ ACK信息。
本实施例中，当所有优先级的HARQ进程的HARQ ACK信息都反馈时，可以生成多个子码本，例如，存在高优先级和低优先级两个优先级的情况下，可以分别生成一个高优先级子码本和一个低优先级子码本。关于两个子码本的放置顺序，可以是将优先级为所述指定优先级的HARQ ACK信息的子码本放置在前，也即优先反馈所述第五HARQ ACK信息。
在一个可选实施例中，关于两个子码本的放置顺序，可以是按高优先级的配置生成高优先级的type 3 HARQ ACK信息且放置在先；按低优先级的配置生成低优先级的type 3 HARQ ACK信息且放置在后。或，当都反馈时，type 3 HARQ ACK的顺序是低优先级的子码本在先，高优先级的子码本在后。
本发明实施例还公开了另一种HARQ ACK信息反馈方法，用于基站侧，所述反馈方法具体可以包括以下步骤：确定HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；发送触发生成HARQ ACK信息的下行控制信令，所述下行控制信令包括HARQ ACK优先级指示信息，以供用户设备至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。
本实施例中，基站能够配置DCI，以指示UE是否反馈所有优先级的HARQ进程的HARQ ACK信息。
请参照图6，本发明实施例还公开了一种HARQ ACK信息反馈装置60，用于用户设备侧。HARQ ACK信息反馈装置60具体可以包括下行控制信令接收模块601、优先级指示信息确定模块602和HARQ ACK信息反馈模块603。
其中，下行控制信令接收模块601用以接收触发生成HARQ ACK信息的下行控制信令；优先级指示信息确定模块602用以确定所述下行控制信令中的HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；HARQ ACK信息反馈模块603用以至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。
本发明实施例还公开了另一种HARQ ACK信息反馈装置，用于基站侧。HARQ ACK信息反馈装置可以包括HARQ ACK优先级指示信息配置模块(图未示)，用以确定HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的 HARQ进程的HARQ ACK信息；下行控制信令发送模块(图未示)，用以发送触发生成HARQ ACK信息的下行控制信令，所述下行控制信令包括HARQ ACK优先级指示信息，以供用户设备至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。
关于所述HARQ ACK信息反馈装置的工作原理、工作方式的更多内容，可以参照图1至图5中的相关描述，这里不再赘述。
本发明实施例还公开了一种存储介质，所述存储介质为计算机可读存储介质，其上存储有计算机程序，所述计算机程序运行时可以执行图1至图5中所示方法的步骤。所述存储介质可以包括ROM、RAM、磁盘或光盘等。所述存储介质还可以包括非挥发性存储器(non-volatile)或者非瞬态(non-transitory)存储器等。
本发明实施例还公开了一种用户设备，所述用户设备可以包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序。所述处理器运行所述计算机程序时可以执行图1至图5中所示方法的步骤。所述用户设备包括但不限于手机、计算机、平板电脑等终端设备。
本发明实施例还公开了一种基站，所述基站可以包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序。所述处理器运行所述计算机程序时可以执行在基站侧执行的上述反馈方法的步骤。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (18)

  1. 一种HARQ ACK信息反馈方法，其特征在于，包括：
    接收触发生成HARQ ACK信息的下行控制信令；
    确定所述下行控制信令中的HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；
    至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。
  2. 根据权利要求1所述的HARQ ACK信息反馈方法，其特征在于，所述HARQ ACK优先级指示信息指示反馈所有优先级的HARQ进程的HARQ ACK信息；所述至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息包括：
    确定所有HARQ进程的HARQ ACK信息所需的比特数中的最大值；
    按照所述最大值确定每个HARQ进程的HARQ ACK信息，并向基站反馈所述HARQ ACK信息。
  3. 根据权利要求2所述的HARQ ACK信息反馈方法，其特征在于，按照所述最大值确定每个HARQ进程的HARQ ACK信息包括：
    根据所述最大值确定实际比特个数；
    如果所述实际比特个数大于HARQ ACK信息的有效比特个数，则在实际比特的剩余比特位置填充预设信息。
  4. 根据权利要求2所述的HARQ ACK信息反馈方法，其特征在于，各个优先级是否配置不同的CBG传输或重传信息，所述确定所有HARQ进程的HARQ ACK信息所需的比特数中的最大值包括：
    确定配置CBG时CBG个数与未配置CBG时传输块个数的最大 值。
  5. 根据权利要求2所述的HARQ ACK信息反馈方法，其特征在于，各个优先级是否配置HARQ ACK空分绑定不同，所述确定所有HARQ进程的HARQ ACK信息所需的比特数中的最大值包括：
    确定配置HARQ ACK空分绑定的HARQ ACK信息的所需的比特数与未配置HARQ ACK空分绑定的HARQ ACK信息的所需的比特数的最大值。
  6. 根据权利要求2所述的HARQ ACK信息反馈方法，其特征在于，各个优先级是否配置NDI不同，所述确定所有HARQ进程的HARQ ACK信息所需的比特数中的最大值包括：
    确定配置NDI的HARQ ACK信息的所需的比特数与未配置NDI的HARQ ACK信息的所需的比特数的最大值。
  7. 根据权利要求1所述的HARQ ACK信息反馈方法，其特征在于，所述下行控制信令还指示指定优先级，所述指定优先级为需要反馈的HARQ ACK信息的优先级。
  8. 根据权利要求7所述的HARQ ACK信息反馈方法，其特征在于，所述HARQ ACK优先级指示信息指示反馈所有优先级的HARQ进程的HARQ ACK信息；所述至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息包括：
    确定优先级为所述指定优先级的HARQ ACK信息所需的第一比特数；
    对于优先级为所述指定优先级的HARQ ACK信息，按照所述第一比特数确定第一HARQ ACK信息；
    对于优先级不是所述指定优先级的HARQ ACK信息，则根据所述HARQ ACK信息的反馈配置以及所述第一比特数确定第二HARQ ACK信息，所述第一比特数为所述第二HARQ ACK信息实际使 用的比特数；
    将所述第一HARQ ACK信息和所述第二HARQ ACK信息合并为所述HARQ ACK信息，并反馈至所述基站。
  9. 根据权利要求8所述的HARQ ACK信息反馈方法，其特征在于，根据所述HARQ ACK信息的反馈配置以及所述第一比特数确定第二HARQ ACK信息包括：
    根据所述HARQ ACK信息的反馈配置确定所述HARQ ACK信息所需的第二比特数；
    如果所述第二比特数大于所述第一比特数，且所述HARQ ACK信息配置CBG，则仅根据传输块确定所述第二HARQ ACK信息；
    或者，如果所述第二比特数大于所述第一比特数，且所述HARQ ACK信息配置HARQ ACK空分绑定，则仅根据所述HARQ ACK空分绑定确定所述第二HARQ ACK信息；
    或者，如果所述第二比特数大于所述第一比特数，且所述HARQ ACK信息配置NDI，则仅根据所述HARQ进程的HARQ ACK确定所述第二HARQ ACK信息。
  10. 根据权利要求8所述的HARQ ACK信息反馈方法，其特征在于，根据所述HARQ ACK信息的反馈配置以及所述第一比特数确定第二HARQ ACK信息包括：
    根据所述HARQ ACK信息的反馈配置确定所述HARQ ACK信息所需的第二比特数；
    如果所述第二比特数小于所述第一比特数，且所述HARQ ACK信息配置CBG或HARQ ACK空分绑定，则确定所述第二HARQ ACK信息包括所述HARQ进程的HARQ ACK，剩余比特为NACK；
    如果所述第二比特数小于所述第一比特数，且所述HARQ ACK信 息配置NDI，则确定所述第二HARQ ACK信息包括所述HARQ进程的HARQ ACK，剩余比特为固定值。
  11. 根据权利要求7所述的HARQ ACK信息反馈方法，其特征在于，所述HARQ ACK优先级指示信息指示不反馈所有优先级的HARQ进程的HARQ ACK信息；所述至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息包括：
    对于优先级为所述指定优先级的HARQ ACK信息，按照所述需要反馈HARQ ACK信息所需的比特数确定第三HARQ ACK信息；
    对于优先级不是所述指定优先级的HARQ ACK信息，按照所述需要反馈HARQ ACK信息所需的比特数填充固定值，以得到第四HARQ ACK信息；
    将所述第三HARQ ACK信息和所述第四HARQ ACK信息合并为所述HARQ ACK信息，并反馈至所述基站。
  12. 根据权利要求7所述的HARQ ACK信息反馈方法，其特征在于，所述HARQ ACK优先级指示信息指示反馈所有优先级的HARQ进程的HARQ ACK信息；所述至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息包括：
    对于优先级为所述指定优先级的HARQ ACK信息，生成对应的第五HARQ ACK信息；
    对于优先级不是所述指定优先级的HARQ ACK信息，生成对应的第六HARQ ACK信息；
    优先反馈所述第五HARQ ACK信息，再反馈所述第六HARQ ACK信息。
  13. 一种HARQ ACK信息反馈方法，其特征在于，包括：
    确定HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK 信息；
    发送触发生成HARQ ACK信息的下行控制信令，所述下行控制信令包括HARQ ACK优先级指示信息，以供用户设备至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。
  14. 一种HARQ ACK信息反馈装置，其特征在于，包括：
    下行控制信令接收模块，用以接收触发生成HARQ ACK信息的下行控制信令；
    优先级指示信息确定模块，用以确定所述下行控制信令中的HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；
    HARQ ACK信息反馈模块，用以至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。
  15. 一种HARQ ACK信息反馈装置，其特征在于，包括：
    优先级指示信息配置模块，用以确定HARQ ACK优先级指示信息，所述HARQ ACK优先级指示信息用于指示是否反馈所有优先级的HARQ进程的HARQ ACK信息；
    下行控制信令发送模块，用以发送触发生成HARQ ACK信息的下行控制信令，所述下行控制信令包括HARQ ACK优先级指示信息，以供用户设备至少根据所述HARQ ACK优先级指示信息向基站反馈HARQ ACK信息。
  16. 一种存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器运行时执行权利要求1至13中任一项所述HARQ ACK信息反馈方法的步骤。
  17. 一种用户设备，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求1至12中任一项所述HARQ ACK 信息反馈方法的步骤。
  18. 一种基站，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求13中所述HARQ ACK信息反馈方法的步骤。
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