CN114039709A - HARQ ACK information feedback method and device, storage medium, user equipment and base station - Google Patents

HARQ ACK information feedback method and device, storage medium, user equipment and base station Download PDF

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CN114039709A
CN114039709A CN202010699753.1A CN202010699753A CN114039709A CN 114039709 A CN114039709 A CN 114039709A CN 202010699753 A CN202010699753 A CN 202010699753A CN 114039709 A CN114039709 A CN 114039709A
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harq ack
ack information
information
harq
priority
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CN114039709B (en
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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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Priority to PCT/CN2021/106662 priority patent/WO2022017260A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • 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

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

Abstract

A HARQ ACK information feedback method and device, a storage medium, user equipment and a base station are provided, the HARQ ACK information feedback method comprises the following steps: receiving a downlink control signaling triggering the generation of HARQ ACK information; determining HARQ ACK priority indication information in the downlink control signaling, wherein the HARQ ACK priority indication information is used for indicating whether to feed back HARQ ACK information of HARQ processes of all priorities; and feeding back HARQ ACK information to the base station at least according to the HARQ ACK priority indication information. The technical scheme of the invention can generate the HARQ ACK information under the condition that the HARQ ACKs with different priorities exist.

Description

HARQ ACK information feedback method and device, storage medium, user equipment and base station
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for feeding back HARQ ACK information, a storage medium, a user equipment, and a base station.
Background
In New Radio technology (NR), a Hybrid Automatic Repeat request (HARQ) Acknowledgement (ACK) codebook of type 3 (also referred to as one-shot HARQ ACK feedback) refers to that after receiving an instruction to trigger one-shot HARQ ACK, UE simultaneously feeds back HARQ ACKs of HARQ processes (processes) of all configured cells to a base station. Meanwhile, if the current cell is configured as a Code Block Group (CBG), the HARQ ACK fed back is HARQ ACK signaling of each CBG. If the configuration is New Data Indicator (NDI) reporting, the HARQ ACK and the NDI of each HARQ process are reported together, where the HARQ ACK is first and the NDI is later. If the NDI report is not configured, the UE determines the HARQ ACK information according to whether the HARQ ACK of one TB of a certain HARQ process corresponding to the serving cell is reported or not. Specifically, if reporting and subsequent detecting that one DCI format schedules a Physical Downlink Shared Channel (PDSCH) corresponding to a Transport Block (TB) of a certain HARQ process of a serving cell or receives a semi-Persistent Scheduling (SPS) PDSCH, feeding back NACK; otherwise, reporting the corresponding HARQ ACK information.
However, the current type 3HARQ ACK codebook does not support generation of a type 3HARQ ACK codebook (Code Book, CB) in the presence of HARQ ACKs of different priorities.
Disclosure of Invention
The invention solves the technical problem of how to generate HARQ ACK information under the condition that HARQ ACKs with different priorities exist.
In order to solve the above technical problem, an embodiment of the present invention provides a HARQ ACK information feedback method, where the HARQ ACK information feedback method includes: receiving a downlink control signaling triggering the generation of HARQ ACK information; determining HARQ ACK priority indication information in the downlink control signaling, wherein the HARQ ACK priority indication information is used for indicating whether to feed back HARQ ACK information of HARQ processes of all priorities; and feeding back HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
Optionally, the HARQ ACK priority indication information indicates to feed back HARQ ACK information of HARQ processes of all priorities; the feeding back the HARQ ACK information to the base station according to the HARQ ACK priority indication information at least comprises the following steps: determining the maximum value of the bit numbers required by the HARQ ACK information of all the HARQ processes; and determining HARQ ACK information of all HARQ processes according to the maximum value, and feeding back the HARQ ACK information to the base station.
Optionally, whether different CBG transmission or retransmission information is configured for each priority, where the determining a maximum value of the number of bits required for the HARQ ACK information of all HARQ processes includes: and determining the maximum value of the number of CBGs when the CBG is configured and the number of transmission blocks when the CBG is not configured.
Optionally, whether HARQ ACK space division bundling is configured differently for each priority, where the determining a maximum value of the bit numbers required by the HARQ ACK information of all HARQ processes includes: and determining the maximum value of the bit number required by the HARQ ACK information configured with the HARQ ACK space-division binding and the bit number required by the HARQ ACK information not configured with the HARQ ACK space-division binding.
Optionally, whether NDI is configured differently for each priority, where the determining a maximum value of the number of bits required by the HARQ ACK information of all HARQ processes includes: and determining the maximum value of the bit number required by configuring the HARQ ACK information of the NDI and the bit number required by not configuring the HARQ ACK information of the NDI.
Optionally, the downlink control signaling further indicates a designated priority, where the designated priority is a priority for feeding back HARQ ACK information.
Optionally, the HARQ ACK priority indication information indicates to feed back HARQ ACK information of HARQ processes of all priorities; the feeding back the HARQ ACK information to the base station according to the HARQ ACK priority indication information at least comprises the following steps: determining a first bit number required by the HARQ ACK information with the priority as the designated priority; for the HARQ ACK information with the priority as the designated priority, determining first HARQ ACK information according to the first bit number; for the HARQ ACK information of which the priority is not the designated priority, determining second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first bit number, wherein the first bit number is the actually used bit number of the second HARQ ACK information; and combining the first HARQ ACK information and the second HARQ ACK information into the HARQ ACK information, and feeding back the HARQ ACK information to the base station.
Optionally, determining the second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first bit number includes: determining a second bit number required by the HARQ ACK information according to the feedback configuration of the HARQ ACK information; if the second bit number is larger than the first bit number and the HARQ ACK information configures CBG, determining the second HARQ ACK information only according to a transmission block; or, if the second bit number is greater than the first bit number and the HARQ ACK information configures HARQ ACK space division binding, determining the second HARQ ACK information only according to the HARQ ACK space division binding; or, if the second bit number is greater than the first bit number and the HARQ ACK information configures NDI, determining the second HARQ ACK information only according to HARQ ACK of the HARQ process.
Optionally, determining the second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first bit number includes: determining a second bit number required by the HARQ ACK information according to the feedback configuration of the HARQ ACK information; if the second bit number is smaller than the first bit number and the HARQ ACK information configures CBG or HARQ ACK space division binding, determining that the second HARQ ACK information comprises HARQ ACK of the HARQ process and the rest bits are NACK; and if the second bit number is smaller than the first bit number and the HARQ ACK information configures NDI, determining that the second HARQ ACK information comprises HARQ ACK of the HARQ process and the residual bits are fixed values.
Optionally, the HARQ ACK priority indication information indicates that HARQ ACK information of HARQ processes of all priorities is not fed back; the feeding back the HARQ ACK information to the base station according to the HARQ ACK priority indication information at least comprises the following steps: for the HARQ ACK information with the priority of the assigned priority, determining third HARQ ACK information according to the bit number required by the HARQ ACK information needing to be fed back; filling a fixed value for the HARQ ACK information with the priority not the designated priority according to the bit number required by the HARQ ACK information needing to be fed back so as to obtain fourth HARQ ACK information; and combining the third HARQ ACK information and the fourth HARQ ACK information into the HARQ ACK information, and feeding back the HARQ ACK information to the base station.
Optionally, the HARQ ACK priority indication information indicates to feed back HARQ ACK information of HARQ processes of all priorities; the feeding back the HARQ ACK information to the base station according to the HARQ ACK priority indication information at least comprises the following steps: generating corresponding fifth HARQ ACK information for the HARQ ACK information with the priority as the designated priority; generating corresponding sixth HARQ ACK information for the HARQ ACK information of which the priority is not the designated priority; and preferentially feeding back the fifth HARQ ACK information and then feeding back the sixth HARQ ACK information.
In order to solve the above technical problem, an embodiment of the present invention further discloses a HARQ ACK information feedback method, where the HARQ ACK information feedback method includes: determining HARQ ACK priority indication information, wherein the HARQ ACK priority indication information is used for indicating whether HARQ ACK information of HARQ processes of all priorities is fed back or not; and sending a downlink control signaling for triggering generation of HARQ ACK information, wherein the downlink control signaling comprises HARQ ACK priority indication information so that the user equipment can feed back the HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
The embodiment of the invention also discloses a HARQ ACK information feedback device, which comprises: a downlink control signaling receiving module, configured to receive a downlink control signaling triggering generation of HARQ ACK information; a HARQ ACK priority indication information determining module, configured to 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; and the HARQ ACK information feedback module is used for feeding back HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
The embodiment of the invention also discloses a HARQ ACK information feedback device, which comprises: the HARQ ACK priority indication information configuration module is used for determining HARQ ACK priority indication information, and the HARQ ACK priority indication information is used for indicating whether to feed back HARQ ACK information of HARQ processes of all priorities; and the downlink control signaling sending module is used for sending downlink control signaling for triggering generation of HARQ ACK information, and the downlink control signaling comprises HARQ ACK priority indication information so that the user equipment can feed back the HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
The embodiment of the invention also discloses a storage medium, wherein a computer program is stored on the storage medium, and the computer program executes the steps of the HARQ ACK information feedback method when being operated by a processor.
The embodiment of the invention also discloses user equipment which comprises a memory and a processor, wherein the memory is stored with a computer program which can be operated on the processor, and the processor executes the step of the HARQ ACK information feedback method when operating the computer program.
The embodiment of the invention also discloses a base station, which comprises a memory and a processor, wherein the memory is stored with a computer program which can be operated on the processor, and the processor executes the step of the HARQ ACK information feedback method when operating the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
in the technical scheme of the invention, user equipment receives a downlink control signaling triggering the generation of HARQ ACK information; determining HARQ ACK priority indication information in the downlink control signaling, wherein the HARQ ACK priority indication information is used for indicating whether to feed back HARQ ACK information of HARQ processes of all priorities; and feeding back HARQ ACK information to the base station at least according to the HARQ ACK priority indication information. In the technical scheme of the invention, the HARQ processes have different priorities, and the HARQ ACK information of all priority levels can be determined to be fed back by the user equipment or only the HARQ ACK information of the appointed priority level is fed back by the HARQ ACK priority indication information, so that the feedback flexibility of the HARQ ACK information is improved.
Further, the HARQ ACK priority indication information indicates that HARQ ACK information of HARQ processes of all priorities is fed back; the feeding back the HARQ ACK information to the base station according to the HARQ ACK priority indication information at least comprises the following steps: determining the maximum value of the bit numbers required by the HARQ ACK information of all the HARQ processes; and determining HARQ ACK information of all HARQ processes according to the maximum value, and feeding back the HARQ ACK information to the base station. In this embodiment, the HARQ ACK information of all HARQ processes is determined by using the maximum value of the required bit numbers, so that the HARQ ACK information of all HARQ processes can be accurately and completely fed back to the base station, and the accuracy of HARQ ACK information feedback of HARQ processes of all priorities is realized.
Further, for the HARQ ACK information with the priority not being the designated priority, determining second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first bit number, where the first bit number is the number of bits actually used by the second HARQ ACK information. In this embodiment, the number of bits required by the HARQ ACK information of the designated priority indicated in the downlink control signaling is used as the number of bits actually used by the HARQ ACK information of the HARQ processes of all priorities, and the content included in the actually transmitted HARQ ACK information is determined by combining the feedback configuration of the HARQ ACK information, so that the actually transmitted data amount can be reduced on the basis of ensuring the integrity of the HARQ ACK information.
And further, feeding back the fifth HARQ ACK information in priority, and feeding back the sixth HARQ ACK information. The embodiment of the invention can ensure that the HARQ ACK information of the appointed priority can be preferentially fed back to the base station on the basis of ensuring that the HARQ ACK information of the HARQ processes of all priorities is fed back, so that the base station can preferentially decode the HARQ ACK information, and the reliability of the HARQ ACK information is improved.
Drawings
Fig. 1 is a flowchart of a HARQ ACK information feedback method according to an embodiment of the present invention;
FIG. 2 is a flowchart of one embodiment of step S103 shown in FIG. 1;
FIG. 3 is a flowchart of another embodiment of step S103 shown in FIG. 1;
FIG. 4 is a flowchart of one embodiment of step S303 shown in FIG. 3;
FIG. 5 is a flowchart of yet another embodiment of step S103 shown in FIG. 1;
fig. 6 is a schematic structural diagram of an HARQ ACK information feedback apparatus according to an embodiment of the present invention.
Detailed Description
As described in the background art, the current type 3HARQ ACK codebook does not support generation of type 3HARQ ACK CB in the presence of HARQ ACKs of different priorities.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart of a HARQ ACK information feedback method according to an embodiment of the present invention.
The HARQ ACK information feedback method may be used at a User Equipment (UE) side, that is, the User Equipment may perform the steps of the method.
The HARQ ACK information feedback method may include the steps of:
step S101: receiving a downlink control signaling triggering the generation of HARQ ACK information;
step S102: determining HARQ ACK priority indication information in the downlink control signaling, wherein the HARQ ACK priority indication information is used for indicating whether to feed back HARQ ACK information of HARQ processes of all priorities;
step S103: and feeding back HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
It should be noted that the sequence numbers of the steps in this embodiment do not represent a limitation on the execution sequence of the steps.
In this embodiment, the downlink control signaling may be configured by the base station and sent to the ue, where the downlink control signaling includes HARQ ACK priority indication information. The downlink control signaling can trigger the UE to generate type 3HARQ ACK information. The user equipment can know whether the generated HARQ ACK information is for HARQ processes of all priorities or for HARQ processes of a specific priority through the HARQ ACK priority indication information.
It will be understood by those skilled in the art that the base station may carry the above-mentioned information about the specific priority in the downlink control signaling, for example, the downlink control signaling includes priority 0.
In specific implementation, the UE receives the downlink control signaling and triggers generation of the type 3HARQ ACK CB. the HARQ ACK information included in the type 3HARQ ACK CB is determined by the UE according to the HARQ ACK priority indication information. Specifically, the HARQ ACK information of HARQ processes of all priorities or HARQ ACK information of a specific priority may be included.
In the embodiment of the invention, the HARQ ACK information has different priorities, and the HARQ ACK priority indication information can ensure that the user equipment can determine whether to feed back the HARQ ACK information of HARQ processes of all priorities or only feed back the HARQ ACK information of the appointed priority, thereby improving the feedback flexibility of the HARQ ACK information.
In one non-limiting embodiment, the HARQ ACK priority indication information indicates that HARQ ACK information of HARQ processes of all priorities is fed back. Referring to fig. 1 and 2 together, step S103 may specifically include the following steps:
step S201: determining the maximum value of the bit numbers required by the HARQ ACK information of all the HARQ processes;
step S202: and determining HARQ ACK information of each HARQ process according to the maximum value, and feeding back the HARQ ACK information to the base station.
Because the UE needs to feed back the HARQ ACK information of the HARQ processes of all priorities, and the feedback configurations of the HARQ ACK information of different priorities may be different, so that the number of bits required by the HARQ ACK information of the UE is also different, a bit value needs to be determined to simultaneously meet the requirements of the HARQ ACK information of different priorities. In this embodiment, the maximum value of the number of bits required for the HARQ ACK information of all HARQ processes is used as a uniform bit value for the HARQ ACK information of different priorities.
Specifically, the feedback configuration of the HARQ ACK information refers to the configuration of HARQ ACK feedback corresponding to the priority of HARQ ACK for transmitting PDSCH for the HARQ process, for example, whether the HARQ ACK information configures Code Block Group (CBG), New Data Indicator (NDI), space division bundling (SpatialBundling), and the like.
In a specific embodiment, step S201 may include the steps of: and determining the maximum value of the number of CBGs when the CBG is configured and the number of transmission blocks when the CBG is not configured.
In this embodiment, the CBGs of the HARQ ACK information with different priorities are configured differently, for example, the CBG is configured with Priority (Priority)0, and the CBG is not configured with Priority 1. In this case, the maximum value of the number of CBGs when CBGs are configured and the number of Transport Blocks (TBs) when CBGs are not configured may be used as a uniform bit value for carrying HARQ ACK information of different priorities.
In a specific example, as shown in table 1 below, there are 4 HARQ processes in total, where HARQ ACK information for HARQ processes 0 and 2 is high priority and HARQ ACK information for HARQ processes 1 and 3 is low priority. The specific configuration is that only one TB is provided, NDI is not reported, the high-priority HARQ ACK information is not configured with CBG, and the number of CBG configured with the low-priority HARQ ACK information is 4. The HARQ ACK information reported by the UE for all HARQ processes of the serving cell is 1110/0000/1110/0000.
TABLE 1
Figure BDA0002592596310000081
In a specific embodiment, step S201 may include the steps of: the maximum value of the bit number required when HARQ ACK space-division bundling (HARQ ACK spatial bundling) is configured and the bit number required when HARQ ACK space-division bundling is not configured is determined. The HARQ ACK space-division bundling refers to performing an exclusive or operation on HARQ ACKs of two Transport Blocks (TBs).
In this embodiment, whether HARQ ACK space division binding is configured for each priority is different. In this case, the maximum value of the number of bits required for configuring the HARQ ACK space-division bundled HARQ ACK information and the number of bits required for not configuring the HARQ ACK space-division bundled HARQ ACK information may be used as a uniform bit value for carrying HARQ ACK information of different priorities. Specifically, the bit number required for configuring the bundled HARQ ACK information is 1bit, the bit number required for configuring the HARQ ACK information without configuring the bundled is 2 bits, and the unified bit value is 2, that is, max (2, 1).
In a specific example, as shown in table 2 below, there are 4 HARQ processes in total, where HARQ ACK information for HARQ processes 0 and 2 is high priority and HARQ ACK information for HARQ processes 1 and 3 is low priority. Specifically, the configuration is 2 TBs, NDI is not reported, the high priority HARQ ACK information is not configured with a bundle, and the low priority HARQ ACK information is configured with a bundle. The HARQ ACK information reported by the UE for all HARQ processes of the serving cell is 00100010.
TABLE 2
Figure BDA0002592596310000091
In a specific embodiment, step S201 may further include the following steps: and determining the maximum value of the bit number required by configuring the HARQ ACK information of the NDI and the bit number required by not configuring the HARQ ACK information of the NDI.
In this embodiment, whether NDI is configured for each priority is different. In this case, the maximum value of the number of bits required for configuring the HARQ ACK information of the NDI and the number of bits required for not configuring the HARQ ACK information of the NDI may be used as a uniform bit value for carrying HARQ ACK information of different priorities. Specifically, the number of bits required to configure the HARQ ACK information of the NDI is 2 bits, the number of bits required to configure the HARQ ACK information of the NDI is 1bit, and the unified bit value is 2, that is, max (1, 2).
In a specific example, as shown in table 3 below, there are 4 HARQ processes in total, where HARQ ACK information for HARQ processes 0 and 2 is high priority and HARQ ACK information for HARQ processes 1 and 3 is low priority. The specific configuration is that no CBG is configured, only one TB is provided, NDI is reported at high priority, and NDI is not reported at low priority. The HARQ ACK information reported by the UE for all HARQ processes of the serving cell is 00/00/00/00.
TABLE 3
Figure BDA0002592596310000101
In a non-limiting embodiment of the present invention, the downlink control signaling further indicates a designated priority, where the designated priority is a priority of HARQ ACK information that needs to be fed back. The priority is assigned as priority p as indicated in the DCI.
In a non-limiting embodiment, referring to fig. 3, step S103 shown in fig. 1 may further include the following steps:
step S301: determining a first bit number required by the HARQ ACK information with the priority as the designated priority;
step S302: for the HARQ ACK information with the priority as the designated priority, determining first HARQ ACK information according to the first bit number;
step S303: for the HARQ ACK information of which the priority is not the designated priority, determining second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first bit number, wherein the first bit number is the actually used bit number of the second HARQ ACK information;
step S304: and combining the first HARQ ACK information and the second HARQ ACK information into the HARQ ACK information, and feeding back the HARQ ACK information to the base station.
In this embodiment, the first bit number is a bit number commonly used for HARQ ACK information of different priorities.
In an embodiment, referring to fig. 4, step S303 shown in fig. 3 may include the following steps:
step S401: determining a second bit number required by the HARQ ACK information according to the feedback configuration of the HARQ ACK information;
step S402: and if the second bit number is larger than the first bit number and the HARQ ACK information configures CBG, determining the second HARQ ACK information only according to a transmission block.
In this embodiment, for HARQ ACK information whose priority is not the designated priority, the required bit number may be determined according to the specific configuration, and the final feedback data content, that is, the second HARQ ACK information, may be determined by comparing the required bit number with the actually used bit number, that is, the first bit number. That is, the number N of bits indicated by priority p in DCI signaling triggering generation of type 3HARQ ACK is defined as the criterion, and the size of N depends on the CBG configuration of HARQ ACK information of priority p. And the HARQ ACK information different from the priority p also has useful HARQ ACK information placed. When the required bit is more than N, only the TB level information is fed back; when less than N, more bits fill in NACKs. For example, if the triggered priority is a high priority, the number of HARQ ACK CB bits (i.e., the first number of bits) depends on the CBG configuration of the high priority; and if the triggered priority is low, the number of the HARQ ACK CB bits is determined by the CBG configuration of the low priority.
In a specific example, please continue to refer to table 1, the designated priority indicated in the DCI is high priority, i.e. the priority of the trigger is high priority. The high-priority HARQ ACK information is not configured with CBG, and the first number of bits is 1. The HARQ ACK information reported by the UE for all HARQ processes of the serving cell is 0000. Wherein the first HARQ ACK information is 00, and the second HARQ ACK information is 00.
Or, the triggered priority is low priority, and the number of CBGs configured for the HARQ ACK information of low priority is 4. The HARQ ACK information reported by the UE for all HARQ processes of the serving cell is 1110/0000/1110/0000. Wherein the first HARQ ACK information is 1100/1100, and the second HARQ ACK information is 0000/0000.
In another embodiment, step S402 may be replaced by the following steps: and if the second bit number is larger than the first bit number and the HARQ ACK information is configured with HARQ ACK space division binding, determining the second HARQ ACK information only according to the HARQ ACK space division binding.
Unlike the foregoing embodiments, in the present embodiment, the second HARQ ACK information is determined according to whether HARQ ACK space-division bundling is configured.
In a specific example, please continue referring to table 2, the triggered priority is a high priority, no bundle is configured in the high priority, and the first number of bits is 2. The HARQ ACK information reported by the UE for all HARQ processes of the serving cell is 00100010. Wherein the first HARQ ACK information is 00/00, and the second HARQ ACK information is 10/10.
Or the triggering priority is low priority, the low priority is configured with bundle, and the first bit number is 1. The HARQ ACK information reported by the UE for all HARQ processes of the serving cell is 0000. Wherein the first HARQ ACK information is 00, and the second HARQ ACK information is 00.
In another specific embodiment, step S402 can be replaced by the following steps: and if the second bit number is larger than the first bit number and the NDI is configured in the HARQ ACK information, determining the second HARQ ACK information only according to the HARQ ACK of the HARQ process.
Unlike the foregoing embodiment, the second HARQ ACK information is determined according to whether the NDI is configured in the present embodiment.
In a specific example, please continue referring to table 3, the triggered priority is the high priority, the high priority reports the NDI, and the first bit number is 2. The HARQ ACK information reported by the UE for all HARQ processes of the serving cell is 00/00/00/00. Wherein the first HARQ ACK information is 00/00, and the second HARQ ACK information is 00/00.
Or the triggered priority is low priority, the priority does not report the NDI, and the first bit number is 1. The HARQ ACK information reported by the UE for all HARQ processes of the serving cell is 0/0/0/0. Wherein the first HARQ ACK information is 00, and the second HARQ ACK information is 00.
In one non-limiting embodiment, the HARQ ACK priority indication information indicates that HARQ ACK information for HARQ processes of all priorities is not fed back. Referring to fig. 5, step S103 shown in fig. 1 may include the following steps:
step S501: for the HARQ ACK information with the priority of the assigned priority, determining third HARQ ACK information according to the bit number required by the HARQ ACK information needing to be fed back;
step S502: filling a fixed value for the HARQ ACK information with the priority not the designated priority according to the bit number required by the HARQ ACK information needing to be fed back so as to obtain fourth HARQ ACK information;
step S503: and combining the third HARQ ACK information and the fourth HARQ ACK information into the HARQ ACK information, and feeding back the HARQ ACK information to the base station.
In this embodiment, for the type 3HARQ ACK CB supporting the specific priority, generating the type 3HARQ ACK signaling by triggering once may only generate HARQ ACK information indicating the HARQ process of the corresponding priority in the DCI, where the HARQ ACK information different from the HARQ process indicating the priority fills NACK, and if the NDI is reported simultaneously, the NDI information different from the HARQ process indicating the priority fills a fixed value (e.g., 0 or 1).
In a specific example, referring to table 4, there are 4 HARQ processes, wherein HARQ processes 0 and 2 are high priority and HARQ processes 1 and 3 are low priority. It is assumed that the UEs are all correctly decoded (ACK, denoted by 0). Specifically, if CBG is not configured, only one TB is provided, and NDI is not reported, and HARQ ACK information of all HARQ processes corresponding to the serving cell reported by the UE is 0101.
TABLE 4
HARQ process 0 HARQ process 1 HARQ process 2 HARQ process 3
ACK ACK
If the configured CBG is 4, there is only one TB, and no NDI is reported, the HARQ ACK information of all HARQ processes corresponding to the serving cell reported by the UE is 0000111100001111.
In another specific example, referring to table 5, if HARQ ACK-spatial bundling is not configured, there are 2 TBs, and the NDI is not reported, and HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 00110011.
TABLE 5
Figure BDA0002592596310000131
Referring to table 6, if HARQ ACK-spatial bundling is configured, there are 2 TBs, and an NDI is not reported, and HARQ ACK information of all HARQ processes of the corresponding serving cell reported by the UE is 00100010.
TABLE 6
Figure BDA0002592596310000141
Referring to table 7, if CBG is not configured, only one TB is configured, NDI is reported, and HARQ ACK information of all HARQ processes corresponding to the serving cell reported by the UE is 00100010.
TABLE 7
Figure BDA0002592596310000142
In a non-limiting embodiment of the present invention, the HARQ ACK priority indication information indicates that HARQ ACK information of HARQ processes of all priorities is fed back. Step S103 shown in fig. 1 may include the following steps:
generating corresponding fifth HARQ ACK information for the HARQ ACK information with the priority as the designated priority;
generating corresponding sixth HARQ ACK information for the HARQ ACK information of which the priority is not the designated priority;
and preferentially feeding back the fifth HARQ ACK information and then feeding back the sixth HARQ ACK information.
In this embodiment, when HARQ ACK information of HARQ processes of all priorities is fed back, a plurality of sub-codebooks may be generated, for example, when there are two priorities, i.e., a high-priority sub-codebook and a low-priority sub-codebook, may be generated respectively. Regarding the placement order of the two sub-codebooks, the sub-codebook of the HARQ ACK information with the priority assigned to the priority may be placed in front, that is, the fifth HARQ ACK information is preferentially fed back.
In an optional embodiment, regarding the placement order of the two sub-codebooks, it may be that type 3HARQ ACK information of high priority is generated in a configuration of high priority and placed first; and generating type 3HARQ ACK information with low priority according to the configuration of low priority and placing the information at the back. Or, when both are fed back, the order of type 3HARQ ACK is that the low priority sub-codebook is first and the high priority sub-codebook is later.
The embodiment of the invention also discloses another HARQ ACK information feedback method which is used for the base station side, and the feedback method specifically comprises the following steps: determining HARQ ACK priority indication information, wherein the HARQ ACK priority indication information is used for indicating whether HARQ ACK information of HARQ processes of all priorities is fed back or not; and sending a downlink control signaling for triggering generation of HARQ ACK information, wherein the downlink control signaling comprises HARQ ACK priority indication information so that the user equipment can feed back the HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
In this embodiment, the base station can configure DCI to indicate whether the UE feeds back HARQ ACK information of HARQ processes of all priorities.
Referring to fig. 6, an embodiment of the present invention further discloses a HARQ ACK information feedback device 60, which is used on 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 configured to receive a downlink control signaling triggering generation of HARQ ACK information; the priority indication information determining module 602 is configured to 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; the HARQ ACK information feedback module 603 is configured to feed back HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
The embodiment of the invention also discloses another HARQ ACK information feedback device which is used for the base station side. The HARQ ACK information feedback apparatus may include a HARQ ACK priority indication information configuration module (not shown) configured to determine 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; a downlink control signaling sending module (not shown) configured to send a downlink control signaling for triggering generation of HARQ ACK information, where the downlink control signaling includes HARQ ACK priority indication information, so that the user equipment feeds back HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
For more contents of the operation principle and the operation mode of the HARQ ACK information feedback apparatus, reference may be made to the relevant descriptions in fig. 1 to fig. 5, which are not described herein again.
The embodiment of the invention also discloses a storage medium, which is a computer-readable storage medium and stores a computer program thereon, and the computer program can execute the steps of the methods shown in fig. 1 to 5 when running. The storage medium may include ROM, RAM, magnetic or optical disks, etc. The storage medium may further include a non-volatile memory (non-volatile) or a non-transitory memory (non-transient), and the like.
The embodiment of the invention also discloses user equipment which can comprise a memory and a processor, wherein the memory is stored with a computer program which can run on the processor. The processor, when running the computer program, may perform the steps of the methods shown in fig. 1 to 5. The user equipment includes but is not limited to a mobile phone, a computer, a tablet computer and other terminal equipment.
The embodiment of the invention also discloses a base station which can comprise a memory and a processor, wherein the memory is stored with a computer program which can run on the processor. The processor, when running the computer program, may perform the steps of the above-described feedback method performed at the base station side.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (18)

1. A HARQ ACK information feedback method is characterized by comprising the following steps:
receiving a downlink control signaling triggering the generation of HARQ ACK information;
determining HARQ ACK priority indication information in the downlink control signaling, wherein the HARQ ACK priority indication information is used for indicating whether to feed back HARQ ACK information of HARQ processes of all priorities;
and feeding back HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
2. The HARQ ACK information feedback method according to claim 1, wherein the HARQ ACK priority indication information indicates that HARQ ACK information of HARQ processes of all priorities is fed back; the feeding back the HARQ ACK information to the base station according to the HARQ ACK priority indication information at least comprises the following steps:
determining the maximum value of the bit numbers required by the HARQ ACK information of all the HARQ processes;
and determining HARQ ACK information of each HARQ process according to the maximum value, and feeding back the HARQ ACK information to the base station.
3. The HARQ ACK information feedback method of claim 2, wherein determining the HARQ ACK information for each HARQ process according to the maximum value comprises:
determining the actual number of bits according to the maximum value;
and if the actual bit number is larger than the effective bit number of the HARQ ACK information, filling preset information in the residual bit positions of the actual bits.
4. The method as claimed in claim 2, wherein the determining whether each priority configures different CBG transmission or retransmission information includes:
and determining the maximum value of the number of CBGs when the CBG is configured and the number of transmission blocks when the CBG is not configured.
5. The method as claimed in claim 2, wherein whether each priority configures HARQ ACK space division bundling differently, and the determining the maximum value of the number of bits required for the HARQ ACK information of all HARQ processes comprises:
and determining the maximum value of the bit number required by the HARQ ACK information configured with the HARQ ACK space-division binding and the bit number required by the HARQ ACK information not configured with the HARQ ACK space-division binding.
6. The method of claim 2, wherein whether NDI is configured differently for each priority, and the determining the maximum value of the number of bits required for the HARQ ACK information of all HARQ processes comprises:
and determining the maximum value of the bit number required by configuring the HARQ ACK information of the NDI and the bit number required by not configuring the HARQ ACK information of the NDI.
7. The method as claimed in claim 1, wherein the downlink control signaling further indicates a designated priority, and the designated priority is a priority of the HARQ ACK information to be fed back.
8. The HARQ ACK information feedback method according to claim 7, wherein the HARQ ACK priority indication information indicates that HARQ ACK information of HARQ processes of all priorities is fed back; the feeding back the HARQ ACK information to the base station according to the HARQ ACK priority indication information at least comprises the following steps:
determining a first bit number required by the HARQ ACK information with the priority as the designated priority;
for the HARQ ACK information with the priority as the designated priority, determining first HARQ ACK information according to the first bit number;
for the HARQ ACK information of which the priority is not the designated priority, determining second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first bit number, wherein the first bit number is the actually used bit number of the second HARQ ACK information;
and combining the first HARQ ACK information and the second HARQ ACK information into the HARQ ACK information, and feeding back the HARQ ACK information to the base station.
9. The method of claim 8, wherein determining the second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first number of bits comprises:
determining a second bit number required by the HARQ ACK information according to the feedback configuration of the HARQ ACK information;
if the second bit number is larger than the first bit number and the HARQ ACK information configures CBG, determining the second HARQ ACK information only according to a transmission block;
or, if the second bit number is greater than the first bit number and the HARQ ACK information configures HARQ ACK space division binding, determining the second HARQ ACK information only according to the HARQ ACK space division binding;
or, if the second bit number is greater than the first bit number and the HARQ ACK information configures NDI, determining the second HARQ ACK information only according to HARQ ACK of the HARQ process.
10. The method of claim 8, wherein determining the second HARQ ACK information according to the feedback configuration of the HARQ ACK information and the first number of bits comprises:
determining a second bit number required by the HARQ ACK information according to the feedback configuration of the HARQ ACK information;
if the second bit number is smaller than the first bit number and the HARQ ACK information configures CBG or HARQ ACK space division binding, determining that the second HARQ ACK information comprises HARQ ACK of the HARQ process and the rest bits are NACK;
and if the second bit number is smaller than the first bit number and the HARQ ACK information configures NDI, determining that the second HARQ ACK information comprises HARQ ACK of the HARQ process and the residual bits are fixed values.
11. The HARQ ACK information feedback method according to claim 7, wherein the HARQ ACK priority indication information indicates that HARQ ACK information for HARQ processes of all priorities is not fed back; the feeding back the HARQ ACK information to the base station according to the HARQ ACK priority indication information at least comprises the following steps:
for the HARQ ACK information with the priority of the assigned priority, determining third HARQ ACK information according to the bit number required by the HARQ ACK information needing to be fed back;
filling a fixed value for the HARQ ACK information with the priority not the designated priority according to the bit number required by the HARQ ACK information needing to be fed back so as to obtain fourth HARQ ACK information; and combining the third HARQ ACK information and the fourth HARQ ACK information into the HARQ ACK information, and feeding back the HARQ ACK information to the base station.
12. The HARQ ACK information feedback method according to claim 7, wherein the HARQ ACK priority indication information indicates that HARQ ACK information of HARQ processes of all priorities is fed back; the feeding back the HARQ ACK information to the base station according to the HARQ ACK priority indication information at least comprises the following steps:
generating corresponding fifth HARQ ACK information for the HARQ ACK information with the priority as the designated priority;
generating corresponding sixth HARQ ACK information for the HARQ ACK information of which the priority is not the designated priority;
and preferentially feeding back the fifth HARQ ACK information and then feeding back the sixth HARQ ACK information.
13. A HARQ ACK information feedback method is characterized by comprising the following steps:
determining HARQ ACK priority indication information, wherein the HARQ ACK priority indication information is used for indicating whether HARQ ACK information of HARQ processes of all priorities is fed back or not;
and sending a downlink control signaling for triggering generation of HARQ ACK information, wherein the downlink control signaling comprises HARQ ACK priority indication information so that the user equipment can feed back the HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
14. An apparatus for feeding back HARQ ACK information, comprising:
a downlink control signaling receiving module, configured to receive a downlink control signaling triggering generation of HARQ ACK information;
a priority indication information determining module, configured to 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;
and the HARQ ACK information feedback module is used for feeding back HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
15. An apparatus for feeding back HARQ ACK information, comprising:
the priority indication information configuration module is used for determining HARQ ACK priority indication information, and the HARQ ACK priority indication information is used for indicating whether to feed back HARQ ACK information of HARQ processes of all priorities;
and the downlink control signaling sending module is used for sending downlink control signaling for triggering generation of HARQ ACK information, and the downlink control signaling comprises HARQ ACK priority indication information so that the user equipment can feed back the HARQ ACK information to the base station at least according to the HARQ ACK priority indication information.
16. A storage medium having a computer program stored thereon, wherein the computer program, when being executed by a processor, performs the steps of the HARQ ACK information feedback method according to any of claims 1 to 13.
17. A user equipment comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor executes the computer program to perform the steps of the HARQ ACK information feedback method of any of claims 1 to 12.
18. A base station comprising a memory and a processor, said memory having stored thereon a computer program operable on said processor, wherein said processor, when executing said computer program, performs the steps of the HARQ ACK information feedback method of claim 13.
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